:root {
    --bg: #f3f6fa;
    --surface: #ffffff;
    --surface-soft: #f7f9fc;
    --surface-muted: #eef3f7;
    --text: #142033;
    --muted: #5f6f84;
    --subtle: #7a8798;
    --line: #d8e1eb;
    --line-strong: #c4cfdb;
    --primary: #17685d;
    --primary-dark: #0f5148;
    --primary-soft: #e7f4f1;
    --accent: #8a5a12;
    --danger: #b42318;
    --success: #137a4b;
    --shadow: 0 12px 32px rgba(24, 39, 75, .08);
    --radius: 8px;
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html {
    min-width: 320px;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.65;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

.container,
.site-main {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.site-header {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
}

.top-strip {
    background: #162236;
    color: #d7e0ea;
    font-size: 13px;
}

.top-strip .container,
.site-footer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 38px;
    gap: 16px;
}

.top-strip nav,
.main-nav .container {
    display: flex;
    align-items: center;
    gap: 22px;
}

.top-strip a {
    color: #fff;
}

.main-header {
    display: grid;
    grid-template-columns: minmax(260px, 360px) minmax(320px, 1fr);
    gap: 36px;
    align-items: center;
    padding: 22px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    display: inline-grid;
    width: 44px;
    height: 44px;
    place-items: center;
    border-radius: 8px;
    background: #162236;
    color: #fff;
    font-weight: 800;
}

.brand b,
.brand small {
    display: block;
}

.brand b {
    letter-spacing: 0;
}

.brand small {
    color: var(--muted);
    font-size: 12px;
}

.top-search,
.hero-search,
.admin-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    min-height: 42px;
    padding: 9px 12px;
    outline: none;
    transition: border-color .18s ease, box-shadow .18s ease;
}

textarea {
    min-height: 110px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(23, 104, 93, .15);
}

.btn {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 8px 15px;
    font-weight: 700;
    white-space: nowrap;
    transition: background .18s ease, border-color .18s ease, color .18s ease, box-shadow .18s ease;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 14px rgba(23, 104, 93, .16);
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: #fff;
    border-color: var(--line-strong);
    color: var(--text);
}

.btn-secondary:hover,
.btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary-dark);
}

.btn-ghost {
    background: transparent;
    color: var(--muted);
    border-color: var(--line);
}

.main-nav {
    background: #fbfcfe;
    border-top: 1px solid var(--line);
}

.main-nav a {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    font-weight: 700;
    color: #344154;
}

.main-nav a:hover {
    color: var(--primary);
}

.site-main {
    padding: 28px 0 44px;
}

.crumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 13px;
}

.crumbs a {
    color: #405166;
}

.crumbs a:hover {
    color: var(--primary-dark);
}

.crumbs b {
    color: var(--text);
    font-weight: 700;
}

.hero {
    min-height: 380px;
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr);
    gap: 24px;
    align-items: stretch;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: clamp(24px, 4vw, 46px);
    box-shadow: var(--shadow);
}

.hero__content {
    align-self: center;
}

.eyebrow {
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.hero h1,
.page-title h1,
.admin-page-title h1 {
    margin: 6px 0 10px;
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.18;
}

.hero p,
.page-title p,
.section-head p,
.admin-page-title p {
    margin: 0;
    color: var(--muted);
}

.hero-search {
    margin-top: 24px;
    max-width: 700px;
}

.hero-search input,
.top-search input {
    flex: 1;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.hero-tags span {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-soft);
    color: #405166;
    padding: 3px 10px;
    font-size: 13px;
}

.hero__panel {
    align-self: stretch;
    background: #fbfcfe;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.portal-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 14px;
    align-items: stretch;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
}

.portal-main h1 {
    margin: 0 0 12px;
    font-size: 26px;
    line-height: 1.25;
}

.portal-search {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
}

.portal-stages {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 14px;
}

.portal-stages a,
.portal-stats div,
.subject-strip,
.workbench-item,
.paper-link-list a {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.portal-stages a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 12px;
}

.portal-stages b,
.workbench-item b,
.paper-link-list b {
    color: #223047;
}

.portal-stages span,
.workbench-item span,
.paper-link-list span {
    color: var(--muted);
    font-size: 13px;
}

.portal-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.portal-stats div {
    display: grid;
    align-content: center;
    padding: 10px 14px;
}

.portal-stats b {
    color: var(--primary-dark);
    font-size: 24px;
    line-height: 1.1;
}

.portal-stats span {
    color: var(--muted);
    font-size: 13px;
}

.subject-strip {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    margin-top: 12px;
    padding: 12px 14px;
    background: #fff;
}

.subject-strip b {
    color: #344154;
}

.subject-strip div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.subject-strip a {
    min-height: 30px;
    display: inline-flex;
    align-items: center;
    border-radius: 6px;
    padding: 4px 10px;
    color: #405166;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    font-weight: 700;
}

.workbench-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.workbench-item {
    display: grid;
    gap: 4px;
    padding: 14px;
    background: #fff;
}

.workbench-item:hover,
.portal-stages a:hover,
.subject-strip a:hover,
.paper-link-list a:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.home-columns {
    display: grid;
    grid-template-columns: 360px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
    margin-top: 16px;
}

.paper-link-list {
    display: grid;
    gap: 8px;
}

.paper-link-list a {
    display: grid;
    gap: 2px;
    padding: 10px 12px;
    background: #fff;
}

.portal-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px 14px;
    margin-bottom: 10px;
}

.portal-title h1 {
    margin: 0;
    color: #182338;
    font-size: 22px;
    line-height: 1.25;
}

.portal-title p {
    margin: 3px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.portal-dashboard {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr) 230px;
    gap: 12px;
    align-items: stretch;
}

.portal-subjects,
.portal-center,
.portal-side {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 6px;
    min-width: 0;
}

.portal-subjects,
.portal-center,
.portal-side {
    padding: 13px;
}

.portal-block-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 9px;
    border-bottom: 1px solid var(--line);
}

.portal-block-title b {
    color: #223047;
}

.portal-block-title span {
    color: var(--subtle);
    font-size: 12px;
}

.portal-dashboard .portal-stages {
    grid-template-columns: 1fr;
    margin-top: 10px;
}

.subject-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    margin-top: 10px;
}

.subject-list a,
.subject-list span {
    min-height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 3px;
    background: var(--surface-soft);
    color: #405166;
    padding: 4px 8px;
    font-size: 13px;
    font-weight: 700;
    text-align: center;
}

.subject-list a:hover {
    border-color: #c7e1db;
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.portal-center {
    display: grid;
    align-content: start;
    gap: 12px;
}

.portal-workbench {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
}

.workbench-entry {
    min-height: 86px;
    display: grid;
    align-content: center;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: #fbfcfe;
    padding: 12px;
}

.workbench-entry strong {
    color: #182338;
    font-size: 17px;
}

.workbench-entry span {
    color: var(--muted);
    font-size: 13px;
}

.workbench-entry:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.portal-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    border-top: 1px solid var(--line);
    padding-top: 11px;
}

.portal-links b {
    margin-right: 2px;
    color: #344154;
}

.portal-links a {
    min-height: 28px;
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--line);
    border-radius: 3px;
    background: #fff;
    color: #405166;
    padding: 3px 9px;
    font-size: 13px;
    font-weight: 700;
}

.portal-links a:hover {
    color: var(--primary-dark);
    border-color: #c7e1db;
    background: var(--primary-soft);
}

.portal-side {
    display: grid;
    align-content: start;
    gap: 10px;
}

.portal-stat-list {
    display: grid;
    gap: 8px;
}

.portal-stat-list div,
.portal-notice {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 10px 12px;
}

.portal-stat-list b {
    display: block;
    color: var(--primary-dark);
    font-size: 22px;
    line-height: 1.2;
}

.portal-stat-list span,
.portal-notice span {
    color: var(--muted);
    font-size: 13px;
}

.portal-notice {
    display: grid;
    gap: 4px;
}

.portal-notice b {
    color: #223047;
}

.panel-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.panel-title span {
    font-weight: 800;
}

.panel-title small {
    color: var(--subtle);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.stat-grid div,
.admin-stat-grid article,
.feature-grid article,
.side-panel,
.filter-panel,
.basket-dock,
.paper-settings,
.table-panel,
.import-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.stat-grid div {
    padding: 16px;
}

.stat-grid b,
.admin-stat-grid b {
    display: block;
    color: var(--primary-dark);
    font-size: 26px;
    line-height: 1.1;
}

.stat-grid span,
.admin-stat-grid span,
.muted {
    color: var(--muted);
    font-size: 14px;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 24px;
}

.quick-action {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: #fff;
    font-weight: 700;
    color: #2b394c;
}

.quick-action:hover {
    border-color: var(--primary);
    color: var(--primary-dark);
    background: var(--primary-soft);
}

.notice {
    margin: 16px 0;
    border-radius: 8px;
    padding: 12px 14px;
    border: 1px solid var(--line);
}

.notice-warning {
    background: #fff8ed;
    color: #8a4b10;
    border-color: #f4d2a8;
}

.notice-success {
    background: #edf8f2;
    color: #0f6840;
    border-color: #b8e3c9;
}

.feature-band,
.content-grid,
.question-layout,
.paper-editor {
    margin-top: 26px;
}

.section-head {
    margin-bottom: 14px;
}

.section-head h2,
.side-panel h2,
.basket-dock h2,
.import-help h2 {
    margin: 0 0 6px;
    font-size: 22px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.feature-grid article {
    padding: 18px;
}

.feature-grid h3 {
    margin: 12px 0 6px;
}

.feature-grid p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.icon-box {
    display: inline-grid;
    width: 38px;
    height: 34px;
    place-items: center;
    border-radius: 8px;
    background: var(--primary-soft);
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 900;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 20px;
}

.side-panel,
.basket-dock,
.paper-settings,
.filter-panel {
    padding: 18px;
}

.entry-list {
    display: grid;
    gap: 10px;
}

.entry-list a {
    display: grid;
    gap: 2px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: var(--surface-soft);
}

.entry-list a:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.entry-list b {
    color: var(--text);
}

.entry-list span {
    color: var(--muted);
    font-size: 13px;
}

.step-list {
    margin: 0;
    padding-left: 22px;
}

.page-title,
.admin-page-title {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 20px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 20px;
}

.title-actions {
    display: flex;
    gap: 10px;
}

.question-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr) 210px;
    gap: 18px;
    align-items: start;
}

.question-layout--results {
    grid-template-columns: minmax(0, 1fr) 210px;
}

.selection-shell {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.selection-sidebar {
    position: sticky;
    top: 16px;
    display: grid;
    gap: 14px;
}

.sidebar-head,
.tree-panel,
.selection-sidebar .sidebar-actions {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.sidebar-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    padding: 16px;
}

.sidebar-head h1 {
    margin: 4px 0 0;
    font-size: 24px;
    line-height: 1.2;
}

.basket-mini {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 38px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 6px 10px;
    color: var(--primary-dark);
    font-weight: 800;
    background: var(--primary-soft);
}

.basket-mini b {
    min-width: 22px;
    min-height: 22px;
    display: inline-grid;
    place-items: center;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-size: 12px;
}

.taxonomy-tabs--wide {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
}

.taxonomy-tabs--wide a {
    min-height: 42px;
}

.tree-panel {
    overflow: hidden;
}

.tree-panel__title {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
    background: #fbfcfe;
}

.tree-panel__title a {
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 800;
}

.directory-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    background: #fff;
}

.directory-tools input {
    min-height: 34px;
}

.directory-tools div {
    display: inline-flex;
    gap: 6px;
}

.link-tool {
    border: 0;
    background: transparent;
    color: var(--primary-dark);
    padding: 4px 2px;
    font-size: 13px;
    font-weight: 800;
}

.tree-list {
    max-height: calc(100dvh - 280px);
    min-height: 280px;
    overflow: auto;
    padding: 8px;
}

.tree-node {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    min-height: 38px;
    border-radius: 6px;
    padding: 7px 9px 7px calc(10px + var(--depth, 0) * 14px);
    color: #344154;
    font-weight: 700;
}

.tree-node:hover {
    background: var(--surface-soft);
    color: var(--primary-dark);
}

.tree-node.is-active {
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.tree-node span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tree-node em {
    display: block;
    margin-top: 1px;
    color: var(--subtle);
    font-size: 11px;
    font-style: normal;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tree-node small {
    color: var(--subtle);
    font-size: 12px;
    font-weight: 700;
}

.tree-group {
    border-bottom: 1px solid #edf0f4;
}

.tree-group:last-child {
    border-bottom: 0;
}

.tree-group summary {
    min-height: 34px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 8px;
    color: #2f3f53;
    cursor: pointer;
    font-size: 13px;
    font-weight: 800;
    list-style: none;
}

.tree-group summary::-webkit-details-marker {
    display: none;
}

.tree-group summary::before {
    content: "+";
    width: 16px;
    color: var(--subtle);
    font-weight: 900;
}

.tree-group[open] summary::before {
    content: "-";
}

.tree-group summary span {
    margin-left: auto;
    color: var(--subtle);
    font-size: 12px;
    font-weight: 700;
}

.tree-group__items {
    padding: 0 0 4px;
}

.tree-empty {
    color: var(--muted);
    padding: 18px 10px;
    text-align: center;
}

.tree-panel--catalog {
    border-color: #cfd8e3;
}

.tree-list--catalog {
    padding: 6px 4px 10px;
    background: #fff;
}

.catalog-tree,
.catalog-tree__children {
    list-style: none;
    margin: 0;
    padding: 0;
}

.catalog-tree + .catalog-tree {
    border-top: 1px solid #eef2f6;
}

.catalog-tree__item {
    min-width: 0;
}

.catalog-tree__branch {
    display: block;
}

.catalog-tree__summary {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    align-items: center;
    min-height: 32px;
    padding: 0 6px;
    border-radius: 3px;
    color: #2f3f53;
    cursor: default;
    list-style: none;
}

.catalog-tree__summary::-webkit-details-marker {
    display: none;
}

.catalog-tree__summary:hover {
    background: #f5f7fa;
}

.catalog-tree__twisty {
    width: 18px;
    height: 28px;
    display: inline-grid;
    place-items: center;
    color: #7a8798;
    font-size: 12px;
}

.catalog-tree__branch > .catalog-tree__summary .catalog-tree__twisty::before {
    content: "+";
}

.catalog-tree__branch[open] > .catalog-tree__summary .catalog-tree__twisty::before {
    content: "-";
}

.catalog-tree__branch.is-leaf > .catalog-tree__summary .catalog-tree__twisty::before {
    content: "";
}

.catalog-tree__link,
.catalog-tree__label {
    min-width: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    min-height: 28px;
    border-radius: 3px;
    padding: 2px 7px;
    font-size: 13px;
}

.catalog-tree__link {
    color: #26384d;
    font-weight: 600;
}

.catalog-tree__link:hover {
    background: #edf5f3;
    color: var(--primary-dark);
}

.catalog-tree__link.is-active {
    background: #dff0ec;
    color: #0f5148;
    box-shadow: inset 3px 0 0 var(--primary);
}

.catalog-filters {
    display: grid;
    gap: 0;
    background: #fff;
    border: 1px solid #e8eef6;
    border-radius: 14px;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06);
    overflow: hidden;
}

.catalog-filters__row {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    padding: 12px 14px;
    border-top: 1px solid #edf2f7;
}

.catalog-filters__row:first-child {
    border-top: 0;
}

.catalog-filters__row b {
    padding-top: 6px;
    color: #64748b;
    font-size: 13px;
    line-height: 1.4;
}

.catalog-filters__options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 6px;
}

.catalog-filters__options a {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 10px;
    border-radius: 16px;
    border: 1px solid #dbe5f0;
    background: #f8fafc;
    color: #475569;
    font-size: 13px;
    line-height: 1;
    transition: all .18s ease;
}

.catalog-filters__options a:hover {
    border-color: #b9d8d1;
    color: #0f5148;
    background: #eef8f5;
}

.catalog-filters__options a.is-active {
    border-color: #1d7a6c;
    background: #1d7a6c;
    color: #fff;
    box-shadow: 0 6px 14px rgba(29, 122, 108, .18);
}

.catalog-tree__label {
    color: #46566b;
    font-weight: 800;
}

.catalog-tree__label em,
.catalog-tree__link em {
    color: #7a8798;
    font-size: 11px;
    font-style: normal;
    font-weight: 700;
}

.catalog-tree__link span,
.catalog-tree__label span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.catalog-tree__children {
    margin-left: 15px;
    padding-left: 8px;
    border-left: 1px solid #e1e7ef;
}

.selection-sidebar .sidebar-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 14px;
}

.selection-main {
    min-width: 0;
}

.filter-panel {
    position: sticky;
    top: 16px;
}

.filter-panel--bar {
    position: static;
    padding: 0;
    overflow: hidden;
}

.filter-panel--bar form {
    display: grid;
    gap: 0;
}

.filter-title {
    display: grid;
    gap: 2px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 14px;
}

.filter-panel--bar .filter-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 15px 18px;
    margin: 0;
    background: #fbfcfe;
}

.filter-title span {
    color: var(--muted);
    font-size: 13px;
}

.filter-row {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
    padding: 12px 18px;
    border-top: 1px solid var(--line);
}

.filter-row__label {
    color: #344154;
    font-size: 14px;
    font-weight: 800;
    line-height: 34px;
    white-space: nowrap;
}

.filter-row__label small {
    display: inline-flex;
    margin-left: 3px;
    color: var(--subtle);
    font-size: 11px;
    font-weight: 600;
}

.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    min-width: 0;
}

.filter-chips--scroll {
    max-height: 92px;
    overflow: auto;
    padding-right: 4px;
}

.filter-chip,
.taxonomy-tabs a {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1px solid transparent;
    padding: 5px 12px;
    color: #405166;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.filter-chip:hover,
.taxonomy-tabs a:hover {
    color: var(--primary-dark);
    background: var(--primary-soft);
    border-color: #c7e1db;
}

.filter-chip.is-active,
.taxonomy-tabs a.is-active {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
}

.taxonomy-filter {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px;
    min-width: 0;
}

.taxonomy-tabs {
    display: inline-flex;
    align-self: start;
    overflow: hidden;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    background: #fff;
}

.taxonomy-tabs a {
    border-radius: 0;
    border: 0;
    min-width: 78px;
}

.filter-empty {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    color: var(--muted);
    font-size: 14px;
}

.more-filter {
    border-top: 1px solid var(--line);
}

.more-filter summary {
    min-height: 38px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 14px;
    color: #344154;
    cursor: pointer;
    font-size: 13px;
    font-weight: 800;
    list-style: none;
    background: #fbfcfe;
}

.more-filter summary::-webkit-details-marker {
    display: none;
}

.more-filter summary::before {
    content: "+";
    color: var(--primary-dark);
    font-weight: 900;
}

.more-filter[open] summary::before {
    content: "-";
}

.more-filter summary span {
    color: var(--muted);
    font-weight: 500;
}

.more-filter .filter-row {
    border-top: 1px solid var(--line);
}

.filter-search {
    display: grid;
    grid-template-columns: 72px minmax(180px, 1fr) auto auto;
    gap: 10px;
    align-items: center;
    padding: 14px 18px 18px;
    border-top: 1px solid var(--line);
    background: var(--surface-soft);
}

.filter-search label {
    display: block;
    color: #344154;
    font-weight: 800;
}

.filter-panel form,
.question-form,
.paper-settings,
.import-panel form {
    display: grid;
    gap: 14px;
}

.filter-panel--bar form {
    gap: 0;
}

label {
    display: grid;
    gap: 6px;
    color: #344154;
    font-weight: 700;
    font-size: 14px;
}

.filter-actions,
.form-actions {
    display: flex;
    gap: 10px;
}

.question-results {
    min-width: 0;
}

.result-toolbar {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    min-height: 60px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.toolbar-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.sort-link {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    border-radius: 6px;
    padding: 5px 10px;
    color: var(--muted);
    font-weight: 800;
}

.sort-link:hover,
.sort-link.is-active {
    color: var(--primary-dark);
    background: var(--primary-soft);
}

.result-toolbar b {
    margin: 0 5px;
    color: var(--primary-dark);
    font-size: 22px;
}

.toolbar-label {
    color: var(--muted);
    font-size: 14px;
}

.toolbar-current {
    display: inline-flex;
    margin-left: 8px;
    color: var(--muted);
    font-size: 14px;
}

.active-filter-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    margin: 10px 0;
    padding: 9px 12px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.active-filter-bar > span {
    color: #344154;
    font-size: 13px;
    font-weight: 800;
}

.active-filter-bar > div {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-width: 0;
}

.active-filter-bar a {
    min-height: 28px;
    display: inline-flex;
    align-items: center;
    border-radius: 6px;
    padding: 3px 8px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    color: #405166;
    font-size: 13px;
    font-weight: 700;
}

.active-filter-bar a:hover {
    color: var(--primary-dark);
    border-color: #c7e1db;
    background: var(--primary-soft);
}

.active-filter-bar .active-filter-clear {
    color: var(--danger);
    background: #fff;
}

.question-list {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    min-width: 0;
}

.compact-list .question-card__answer {
    display: none;
}

.compact-list .question-card {
    padding: 16px;
}

.question-card__head {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 12px;
}

.question-card__topline {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 10px;
    padding-bottom: 9px;
    border-bottom: 1px solid var(--line);
}

.question-card__source {
    min-width: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
    color: #344154;
    font-size: 13px;
    font-weight: 800;
}

.question-card__source a {
    color: var(--primary-dark);
}

.question-card__source em {
    color: var(--subtle);
    font-size: 12px;
    font-style: normal;
    font-weight: 600;
}

.question-card__bodyline {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px;
    min-width: 0;
}

.question-card__content {
    min-width: 0;
}

.question-card__number {
    flex: 0 0 auto;
    min-width: 28px;
    color: #111827;
    font-weight: 800;
    line-height: 24px;
}

.question-card__index {
    color: var(--subtle);
    font-size: 13px;
    font-weight: 800;
    white-space: nowrap;
}

.question-card,
.paper-question {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
    max-width: 100%;
    min-width: 0;
    overflow: hidden;
}

.question-card:hover {
    border-color: var(--line-strong);
    box-shadow: 0 8px 22px rgba(24, 39, 75, .06);
}

.question-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
    min-width: 0;
}

.question-card__meta span {
    min-height: 26px;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    padding: 2px 9px;
    color: #47566b;
    font-size: 13px;
}

.question-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.question-card__tags span {
    border-radius: 6px;
    background: #fff8ed;
    border: 1px solid #f0d4ae;
    color: #8a5a12;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 700;
}

.question-card__stem {
    color: #111827;
    overflow-wrap: anywhere;
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
}

.question-card__stem img,
.question-card__answer img,
.paper-question img,
.question-card__stem svg,
.question-card__answer svg,
.paper-question svg {
    max-width: 100%;
    height: auto;
}

.question-card__stem table,
.question-card__answer table,
.paper-question table {
    max-width: 100%;
}

.question-card__stem p,
.question-card__answer p {
    margin: 0 0 8px;
}

.math-content .MathJye {
    vertical-align: middle;
}

.math-content .quizPutTag {
    display: inline-block;
    min-width: 2.6em;
    min-height: 1.2em;
    vertical-align: middle;
    border-bottom: 1px solid currentColor;
    margin: 0 .12em;
    position: relative;
}

.math-content .quizPutTag > .sanwser {
    display: none !important;
}

.question-card__options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 12px;
    margin: 12px 0 0;
}

.question-card__option {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-soft);
    padding: 8px 10px;
}

.question-card__option b {
    color: var(--primary-dark);
    flex: 0 0 auto;
}

.question-card__option span {
    min-width: 0;
    overflow-wrap: anywhere;
}

.question-card__option img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

.question-card__answer {
    margin-top: 14px;
    border-top: 1px dashed var(--line);
    padding-top: 12px;
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
}

.question-card__answer summary {
    color: var(--primary-dark);
    font-weight: 800;
    cursor: pointer;
}

.answer-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 14px;
    margin-top: 10px;
    min-width: 0;
}

.question-card__footer,
.paper-question__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: 14px;
    min-width: 0;
}

.question-card__footer .muted {
    min-width: 0;
    overflow-wrap: anywhere;
}

.question-card__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.question-action {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    color: #405166;
    padding: 5px 11px;
    font-weight: 800;
}

.question-action:hover,
.question-action.is-favorited {
    border-color: var(--primary);
    color: var(--primary-dark);
    background: var(--primary-soft);
}

.btn.is-added {
    background: var(--primary-dark);
    color: #fff;
}

.basket-dock {
    position: sticky;
    top: 16px;
    display: grid;
    gap: 10px;
}

.basket-dock p {
    margin: 0;
    color: var(--muted);
}

.pagination,
.laravel-pagination nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.pagination a,
.pagination span,
.laravel-pagination a,
.laravel-pagination span {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px 13px;
}

.laravel-pagination svg {
    width: 20px;
    height: 20px;
    vertical-align: middle;
}

.laravel-pagination [aria-current="page"] span {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.empty-state,
.loading {
    background: var(--surface);
    border: 1px dashed var(--line-strong);
    border-radius: 8px;
    padding: 28px;
    color: var(--muted);
    text-align: center;
}

.paper-editor {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
}

.paper-view {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.paper-outline {
    position: sticky;
    top: 16px;
}

.paper-question-list {
    display: grid;
    gap: 12px;
    min-width: 0;
}

.paper-section-title {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 9px 12px;
    color: #243247;
    font-weight: 800;
}

.paper-question-item {
    position: relative;
    min-width: 0;
}

.paper-score {
    margin-top: 6px;
    color: var(--muted);
    font-size: 13px;
    text-align: right;
}

.paper-list {
    display: grid;
    gap: 10px;
    min-width: 0;
}

.paper-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 14px 16px;
    min-width: 0;
}

.paper-row:hover {
    border-color: var(--line-strong);
}

.paper-row__main {
    min-width: 0;
}

.paper-row__label,
.paper-row__meta,
.paper-row__tags,
.side-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-width: 0;
}

.paper-row__label span {
    display: inline-flex;
    align-items: center;
    min-height: 22px;
    border: 1px solid #dbe5ef;
    border-radius: 3px;
    background: #f6f8fb;
    color: #596779;
    padding: 1px 7px;
    font-size: 12px;
    font-weight: 700;
}

.paper-row h2 {
    margin: 7px 0 5px;
    font-size: 17px;
    line-height: 1.35;
}

.paper-row h2 a {
    color: #182338;
}

.paper-row h2 a:hover {
    color: var(--primary-dark);
}

.paper-row__meta {
    color: var(--muted);
    font-size: 13px;
}

.paper-row__meta span + span::before {
    content: "·";
    margin-right: 6px;
    color: #a3afbf;
}

.paper-row__tags {
    margin-top: 9px;
}

.paper-row__tags a,
.paper-row__tags span,
.side-tag-list a {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    border-radius: 3px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    color: #405166;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 700;
}

.paper-row__tags a:hover,
.side-tag-list a:hover {
    border-color: #c7e1db;
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.paper-row__actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    min-width: 100px;
}

.paper-filter .filter-search {
    border-top: 1px solid var(--line);
}

.side-tag-list {
    border-top: 1px solid var(--line);
    padding-top: 12px;
}

.paper-settings {
    position: sticky;
    top: 16px;
}

.paper-sheet {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    min-height: 760px;
    padding: clamp(22px, 4vw, 52px);
    box-shadow: var(--shadow);
}

.paper-sheet header {
    text-align: center;
    border-bottom: 1px solid var(--line);
    padding-bottom: 18px;
    margin-bottom: 20px;
}

.paper-sheet h2 {
    margin: 0 0 8px;
    font-size: 28px;
}

.link-button {
    border: 0;
    background: transparent;
    color: var(--danger);
    padding: 0;
}

.detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 20px;
    align-items: start;
}

.question-detail,
.detail-side .side-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.question-detail {
    padding: 20px;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
}

.detail-section {
    border-top: 1px solid var(--line);
    margin-top: 18px;
    padding-top: 18px;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
}

.detail-section h2 {
    margin: 0 0 12px;
    font-size: 20px;
}

.detail-section--answer {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
}

.detail-side {
    display: grid;
    gap: 14px;
    position: sticky;
    top: 16px;
    min-width: 0;
}

.info-list {
    display: grid;
    gap: 10px;
    margin: 0 0 14px;
}

.info-list div {
    border-bottom: 1px solid var(--line);
    padding-bottom: 10px;
}

.info-list dt {
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
}

.info-list dd {
    margin: 2px 0 0;
    overflow-wrap: anywhere;
}

.smart-layout {
    display: grid;
    grid-template-columns: 380px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
}

.smart-builder,
.smart-result {
    min-width: 0;
}

.smart-builder {
    display: grid;
    gap: 14px;
    position: sticky;
    top: 16px;
}

.smart-step,
.smart-result {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.smart-step {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 0;
    overflow: hidden;
}

.step-mark {
    display: grid;
    place-items: start center;
    padding-top: 18px;
    background: var(--surface-soft);
    color: var(--primary-dark);
    font-weight: 900;
    border-right: 1px solid var(--line);
}

.smart-step__body {
    display: grid;
    gap: 14px;
    padding: 18px;
}

.smart-step__body h2 {
    margin: 0;
    font-size: 20px;
}

.smart-step__title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.preset-actions {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 8px;
}

.smart-mode-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    overflow: hidden;
    background: #fff;
}

.smart-mode-tabs a {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #405166;
    font-weight: 800;
    border-right: 1px solid var(--line);
}

.smart-mode-tabs a:last-child {
    border-right: 0;
}

.smart-mode-tabs a:hover {
    color: var(--primary-dark);
    background: var(--primary-soft);
}

.smart-mode-tabs a.is-active {
    color: #fff;
    background: var(--primary);
}

.smart-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.type-count-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.type-count-grid label {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 76px;
    gap: 8px;
    align-items: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-soft);
    padding: 8px 10px;
}

.type-count-grid input {
    min-height: 36px;
    padding: 6px 8px;
    text-align: center;
}

.smart-result {
    padding: 0 0 16px;
}

.smart-result .result-toolbar {
    border-width: 0 0 1px;
    border-radius: 8px 8px 0 0;
    margin-bottom: 14px;
}

.smart-result .question-list,
.smart-result .notice,
.smart-result .empty-state {
    margin-left: 16px;
    margin-right: 16px;
}

.site-footer {
    background: #162236;
    color: #d7e0ea;
    font-size: 14px;
    margin-top: 30px;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 28px;
    transform: translateX(-50%) translateY(16px);
    background: #162236;
    color: #fff;
    padding: 10px 16px;
    border-radius: 8px;
    opacity: 0;
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
    z-index: 1000;
}

.toast.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Mature question-bank density overrides */
body {
    background: #eef2f6;
    font-size: 15px;
    line-height: 1.58;
}

.container,
.site-main {
    width: min(1280px, calc(100% - 28px));
}

.top-strip {
    background: #26384d;
    font-size: 12px;
}

.top-strip .container,
.site-footer .container {
    min-height: 32px;
}

.main-header {
    grid-template-columns: minmax(250px, 320px) minmax(320px, 1fr);
    padding: 14px 0;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 4px;
}

.brand small {
    display: none;
}

input,
select,
textarea,
.btn {
    border-radius: 4px;
    min-height: 36px;
}

input,
select,
textarea {
    padding: 7px 10px;
}

.btn {
    padding: 6px 12px;
    font-size: 14px;
    box-shadow: none;
}

.btn-primary {
    box-shadow: none;
}

.main-nav {
    background: #fff;
}

.main-nav a {
    min-height: 42px;
    font-size: 14px;
}

.site-main {
    padding: 16px 0 34px;
}

.portal-title {
    border-radius: 4px;
    padding: 10px 12px;
}

.portal-title h1 {
    font-size: 20px;
}

.portal-dashboard {
    gap: 10px;
}

.portal-subjects,
.portal-center,
.portal-side {
    border-radius: 4px;
    padding: 11px;
}

.workbench-entry {
    min-height: 76px;
    padding: 10px;
}

.workbench-entry strong {
    font-size: 16px;
}

.portal-stat-list b {
    font-size: 20px;
}

.portal-panel,
.portal-stages a,
.portal-stats div,
.subject-strip,
.workbench-item,
.paper-link-list a {
    border-radius: 4px;
}

.portal-panel {
    padding: 14px;
}

.portal-main h1 {
    font-size: 22px;
}

.portal-stages,
.workbench-grid {
    gap: 8px;
}

.portal-stages a,
.workbench-item {
    padding: 10px 12px;
}

.subject-strip {
    margin-top: 10px;
    padding: 9px 12px;
}

.subject-strip a {
    min-height: 28px;
    border-radius: 3px;
    font-size: 13px;
}

.home-columns {
    margin-top: 12px;
}

.crumbs {
    margin-bottom: 10px;
    font-size: 12px;
}

.selection-shell {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 14px;
}

.selection-sidebar {
    gap: 10px;
}

.sidebar-head,
.tree-panel,
.selection-sidebar .sidebar-actions,
.filter-panel,
.result-toolbar,
.question-card,
.smart-step,
.smart-result,
.tool-title {
    border-radius: 4px;
    box-shadow: none;
}

.sidebar-head {
    padding: 12px;
}

.sidebar-head h1 {
    margin: 0;
    font-size: 20px;
}

.sidebar-head p {
    margin: 3px 0 0;
    color: var(--muted);
    font-size: 12px;
}

.basket-mini {
    min-height: 32px;
    border-radius: 4px;
    background: #fff;
    font-size: 13px;
}

.taxonomy-tabs {
    border-radius: 4px;
}

.taxonomy-tabs a,
.filter-chip {
    border-radius: 3px;
}

.taxonomy-tabs--wide a {
    min-height: 36px;
}

.tree-panel__title {
    min-height: 40px;
    padding: 9px 12px;
    background: #f5f7fa;
}

.directory-tools {
    padding: 7px 10px;
}

.directory-tools input {
    min-height: 30px;
    font-size: 13px;
}

.link-tool {
    font-size: 12px;
}

.tree-list {
    padding: 4px;
    max-height: calc(100dvh - 235px);
}

.tree-node {
    min-height: 32px;
    border-radius: 3px;
    padding-top: 5px;
    padding-bottom: 5px;
    font-size: 13px;
}

.tree-group summary {
    min-height: 31px;
    padding: 5px 7px;
}

.filter-panel--bar .filter-title {
    padding: 10px 14px;
    background: #f7f9fb;
}

.filter-row {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 8px;
    padding: 8px 14px;
}

.filter-row__label {
    font-size: 13px;
    line-height: 30px;
}

.filter-chips {
    gap: 6px;
}

.filter-chip {
    min-height: 30px;
    padding: 4px 9px;
    font-size: 13px;
    font-weight: 600;
}

.more-filter summary {
    min-height: 34px;
    padding: 6px 14px;
}

.filter-search {
    grid-template-columns: 64px minmax(180px, 1fr) auto auto;
    padding: 10px 14px;
}

.result-toolbar {
    min-height: 48px;
    padding: 8px 12px;
    margin-bottom: 10px;
}

.result-toolbar b {
    font-size: 18px;
}

.active-filter-bar {
    margin: 8px 0 10px;
    border-radius: 4px;
    padding: 7px 10px;
}

.active-filter-bar a {
    min-height: 26px;
    border-radius: 3px;
    padding: 2px 7px;
    font-size: 12px;
}

.question-list {
    gap: 10px;
}

.question-card,
.paper-question {
    border-radius: 4px;
    padding: 13px 14px;
}

.paper-row {
    border-radius: 4px;
    padding: 12px 14px;
    gap: 14px;
}

.paper-row h2 {
    font-size: 16px;
}

.paper-row__actions .btn {
    min-height: 32px;
}

.question-card:hover {
    box-shadow: none;
}

.question-card__topline {
    margin-bottom: 8px;
    padding-bottom: 7px;
}

.question-card__source {
    font-size: 13px;
}

.question-card__bodyline {
    gap: 7px;
}

.question-card__head {
    margin-bottom: 8px;
}

.question-card__number {
    min-width: 24px;
    line-height: 22px;
    font-size: 15px;
}

.question-card__meta {
    gap: 6px;
    margin-bottom: 0;
    justify-content: flex-end;
}

.question-card__meta span {
    min-height: 22px;
    border-radius: 3px;
    padding: 1px 7px;
    font-size: 12px;
    background: #f5f7fa;
}

.question-card__stem {
    font-size: 15px;
}

.question-card__options {
    gap: 6px 8px;
    margin-top: 9px;
}

.question-card__option {
    border-radius: 4px;
    padding: 6px 8px;
    background: #fafbfc;
}

.question-card__tags {
    margin-top: 9px;
}

.question-card__tags span {
    border-radius: 3px;
    background: #f7f7f7;
    border-color: #e2e6ea;
    color: #596779;
    font-weight: 600;
}

.question-card__answer {
    margin-top: 10px;
    padding-top: 9px;
}

.question-card__footer,
.paper-question__head {
    margin-top: 10px;
}

.question-action {
    min-height: 32px;
    border-radius: 4px;
    padding: 4px 9px;
    font-size: 13px;
}

.tool-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
    padding: 12px 14px;
    background: #fff;
    border: 1px solid var(--line);
}

.tool-title h1 {
    margin: 0;
    font-size: 22px;
    line-height: 1.25;
}

.tool-title p {
    margin: 3px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.smart-layout {
    grid-template-columns: 350px minmax(0, 1fr);
    gap: 14px;
}

.smart-builder {
    gap: 10px;
}

.smart-step {
    grid-template-columns: 44px minmax(0, 1fr);
}

.step-mark {
    padding-top: 14px;
    background: #f5f7fa;
    font-size: 13px;
}

.smart-step__body {
    gap: 10px;
    padding: 13px;
}

.smart-step__body h2 {
    font-size: 17px;
}

.smart-step__title {
    align-items: flex-start;
}

.smart-mode-tabs {
    border-radius: 4px;
}

.smart-mode-tabs a {
    min-height: 32px;
    font-size: 13px;
}

.preset-actions {
    gap: 6px;
}

.smart-grid,
.type-count-grid {
    gap: 8px;
}

.type-count-grid label {
    border-radius: 4px;
    padding: 6px 8px;
    background: #fafbfc;
}

.smart-result {
    padding-bottom: 12px;
}

.smart-result .question-list,
.smart-result .notice,
.smart-result .empty-state {
    margin-left: 12px;
    margin-right: 12px;
}

.login-page {
    min-height: 100dvh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: var(--bg);
}

.login-card {
    width: min(420px, 100%);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px;
    box-shadow: var(--shadow);
    display: grid;
    gap: 14px;
}

.login-card h1 {
    margin: 0;
}

.login-card p {
    margin: 0;
    color: var(--muted);
}

.admin-body {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    min-height: 100dvh;
}

.admin-sidebar {
    background: #162236;
    color: #fff;
    padding: 18px;
}

.admin-brand {
    margin-bottom: 24px;
}

.admin-brand small {
    color: #cbd5e1;
}

.admin-sidebar nav {
    display: grid;
    gap: 6px;
}

.admin-sidebar nav a {
    border-radius: 8px;
    padding: 10px 12px;
    color: #d9e2ee;
}

.admin-sidebar nav a:hover {
    background: rgba(255, 255, 255, .1);
    color: #fff;
}

.admin-main {
    padding: 28px;
    min-width: 0;
}

.admin-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.admin-stat-grid article {
    padding: 18px;
}

.table-panel,
.import-panel {
    padding: 18px;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

.data-table th,
.data-table td {
    border-bottom: 1px solid var(--line);
    padding: 11px 10px;
    text-align: left;
    vertical-align: top;
}

.data-table th {
    background: var(--surface-soft);
    color: #344154;
    font-size: 14px;
}

.mapping-table {
    min-width: 1050px;
}

.mapping-table td {
    vertical-align: top;
}

.mapping-path {
    max-width: 360px;
    margin: 4px 0 6px;
    color: #344154;
    overflow-wrap: anywhere;
}

.mapping-form {
    display: grid;
    gap: 8px;
    min-width: 420px;
}

.mapping-form textarea {
    min-height: 64px;
}

.mapping-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    border: 1px solid #ead6a8;
    border-radius: 3px;
    background: #fff8ed;
    color: #8a4b10;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 800;
}

.status-pill--enabled {
    border-color: #b8e3c9;
    background: #edf8f2;
    color: #0f6840;
}

.code-block {
    margin: 0;
    background: #111827;
    color: #f8fafc;
    border-radius: 8px;
    padding: 16px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.6;
}

.admin-toolbar {
    margin-bottom: 14px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.question-form {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 20px;
}

.check-line {
    display: flex;
    align-items: center;
    gap: 8px;
}

.check-line input {
    width: auto;
    min-height: auto;
}

.import-panel {
    display: grid;
    grid-template-columns: minmax(280px, .75fr) minmax(300px, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) {
    .hero,
    .content-grid,
    .home-columns,
    .portal-dashboard,
    .portal-panel,
    .question-layout,
    .selection-shell,
    .detail-layout,
    .smart-layout,
    .paper-view,
    .paper-editor,
    .import-panel {
        grid-template-columns: 1fr;
    }

    .feature-grid,
    .portal-workbench,
    .workbench-grid,
    .admin-stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portal-subjects {
        order: 2;
    }

    .portal-center {
        order: 1;
    }

    .portal-side {
        order: 3;
    }

    .paper-row {
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .paper-row__actions {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .filter-panel,
    .selection-sidebar,
    .detail-side,
    .smart-builder,
    .paper-outline,
    .basket-dock,
    .paper-settings {
        position: static;
    }

    .basket-dock {
        order: -1;
    }

    .question-layout--results {
        grid-template-columns: 1fr;
    }

    .tree-list {
        max-height: 360px;
        min-height: 0;
    }
}

@media (max-width: 760px) {
    .container,
    .site-main {
        width: min(100% - 24px, 1200px);
    }

    .main-header,
    .feature-grid,
    .portal-workbench,
    .workbench-grid,
    .portal-stages,
    .portal-search,
    .subject-strip,
    .form-grid,
    .admin-body {
        grid-template-columns: 1fr;
    }

    .portal-dashboard,
    .subject-list,
    .paper-row__actions {
        grid-template-columns: 1fr;
    }

    .top-strip .container,
    .site-footer .container,
    .portal-title,
    .page-title,
    .admin-page-title,
    .result-toolbar,
    .question-card__head,
    .question-card__footer,
    .paper-question__head {
        align-items: stretch;
        flex-direction: column;
    }

    .top-search,
    .hero-search,
    .portal-links,
    .admin-toolbar,
    .title-actions,
    .filter-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-panel--bar .filter-title,
    .filter-row,
    .taxonomy-filter,
    .filter-search,
    .directory-tools,
    .active-filter-bar,
    .smart-grid,
    .type-count-grid {
        grid-template-columns: 1fr;
    }

    .filter-panel--bar .filter-title {
        align-items: flex-start;
        flex-direction: column;
    }

    .tool-title {
        align-items: stretch;
        flex-direction: column;
    }

    .filter-row__label {
        line-height: 1.4;
    }

    .taxonomy-tabs {
        width: 100%;
    }

    .taxonomy-tabs a {
        flex: 1;
    }

    .filter-chips--scroll {
        max-height: 128px;
    }

    .selection-shell {
        gap: 14px;
    }

    .sidebar-head {
        grid-template-columns: 1fr;
    }

    .tree-list {
        max-height: 300px;
    }

    .tree-node {
        grid-template-columns: minmax(0, 1fr);
    }

    .tree-node small {
        display: none;
    }

    .toolbar-actions,
    .question-card__actions {
        justify-content: stretch;
    }

    .paper-row__meta {
        display: grid;
        grid-template-columns: 1fr;
        gap: 3px;
    }

    .paper-row__meta span + span::before {
        content: "";
        margin: 0;
    }

    .question-card__topline {
        flex-direction: column;
        align-items: stretch;
    }

    .question-card__meta {
        justify-content: flex-start;
    }

    .question-card__bodyline {
        grid-template-columns: 1fr;
    }

    .smart-step__title {
        flex-direction: column;
        align-items: stretch;
    }

    .preset-actions {
        justify-content: flex-start;
    }

    .toolbar-actions > *,
    .question-card__actions > * {
        flex: 1 1 auto;
    }

    .smart-step {
        grid-template-columns: 1fr;
    }

    .step-mark {
        min-height: 42px;
        place-items: center start;
        padding: 0 18px;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .type-count-grid label {
        grid-template-columns: minmax(0, 1fr) 90px;
    }

    .main-nav .container {
        overflow-x: auto;
        gap: 18px;
    }

    .stat-grid,
    .quick-actions,
    .answer-grid,
    .question-card__options {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: static;
    }

    .admin-main {
        padding: 18px 12px;
    }

    .paper-sheet {
        padding: 18px;
    }
}

/* Targeted interaction fixes and richer selection polish. */
.filter-chips {
    gap: 8px 12px;
}

.filter-chip {
    min-height: 30px;
    padding: 4px 12px;
    border: 1px solid transparent;
    background: transparent;
    color: #1f2937;
    line-height: 1.35;
    white-space: nowrap;
}

.filter-chip:hover {
    border-color: #bfd6ff;
    background: #f4f8ff;
    color: var(--primary);
}

.filter-chip.is-active {
    border-color: #a9c8ff;
    background: linear-gradient(180deg, #edf5ff, #f7fbff);
    color: #1d5fd3;
    box-shadow: inset 0 0 0 1px rgba(37, 111, 230, .08), 0 5px 12px rgba(37, 111, 230, .08);
    font-weight: 800;
}

.filter-row {
    background: linear-gradient(90deg, rgba(248, 251, 255, .75), rgba(255, 255, 255, .95));
}

.filter-row + .filter-row {
    border-top: 0;
}

.filter-row__label {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    color: #64748b;
    font-weight: 800;
}

.filter-panel--bar {
    background: #fff;
    box-shadow: 0 14px 34px rgba(15, 23, 42, .055);
}

.filter-title {
    background:
        linear-gradient(90deg, rgba(234, 243, 255, .82), rgba(255, 255, 255, .96));
}

.more-filter summary {
    border-radius: 0 0 12px 12px;
    background: #fbfdff;
}

.js-add-basket.is-added,
.btn-primary.js-add-basket.is-added {
    border-color: #f0b7a4;
    background: linear-gradient(180deg, #fff7f3, #fff);
    color: #c2410c;
    box-shadow: 0 8px 18px rgba(194, 65, 12, .08);
}

.js-add-basket.is-added:hover,
.btn-primary.js-add-basket.is-added:hover {
    background: linear-gradient(180deg, #ffefe8, #fff7f3);
    color: #9a3412;
}

.question-card__actions .btn,
.toolbar-actions .btn {
    min-width: 96px;
}

.question-card {
    background:
        linear-gradient(180deg, #ffffff, #ffffff 72%, #fbfdff);
}

.question-card__topline {
    border-bottom-style: solid;
}

.question-card__source a,
.question-card__source span {
    font-weight: 800;
}

.question-card__number {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: #eef5ff;
    color: var(--primary);
}

.question-card__option {
    padding: 6px 8px;
    border-radius: 10px;
}

.question-card__option:hover {
    background: #f8fbff;
}

.question-card__footer {
    background: linear-gradient(180deg, #fff, #fbfdff);
}

.portal-header::after {
    content: "";
    display: block;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 111, 230, .22), transparent);
}

.home-portal,
.selection-shell,
.smart-layout,
.paper-editor,
.membership-layout,
.member-center {
    position: relative;
}

.home-portal::before,
.selection-shell::before,
.membership-layout::before {
    content: "";
    position: absolute;
    inset: -10px -12px auto auto;
    z-index: -1;
    width: 260px;
    height: 160px;
    border-radius: 40px;
    background: linear-gradient(135deg, rgba(37, 111, 230, .08), rgba(249, 115, 22, .05));
    filter: blur(12px);
}

.workbench-strip a {
    position: relative;
    border-radius: 12px;
}

.workbench-strip a::before {
    content: "";
    position: absolute;
    left: 14px;
    top: 14px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2f7cf6, #f97316);
    opacity: .85;
}

.workbench-strip a b,
.workbench-strip a span {
    padding-left: 18px;
}

.paper-row {
    background:
        linear-gradient(90deg, rgba(248, 251, 255, .86), #fff 24%),
        #fff;
}

.paper-row__label span {
    background: linear-gradient(180deg, #fff4ed, #fff9f5);
    box-shadow: inset 0 0 0 1px rgba(249, 115, 22, .13);
}

.tree-list {
    scrollbar-width: thin;
    scrollbar-color: #c9d8ee transparent;
}

.tree-list::-webkit-scrollbar {
    width: 8px;
}

.tree-list::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: #c9d8ee;
}

.tree-list::-webkit-scrollbar-track {
    background: transparent;
}

.catalog-tree__children {
    border-left-color: #d8e6f8;
}

.result-toolbar {
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(8px);
}

.active-filter-bar a {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 2px 10px;
    border-radius: 999px;
    background: #fff;
    box-shadow: inset 0 0 0 1px rgba(249, 115, 22, .16);
}

.member-auth__form,
.member-profile,
.paper-settings,
.selection-sidebar {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, .98), rgba(250, 253, 255, .98));
}

.membership-plan::after {
    content: "";
    position: absolute;
    left: 24px;
    right: 24px;
    top: 0;
    height: 4px;
    border-radius: 0 0 999px 999px;
    background: linear-gradient(90deg, #2f7cf6, #8bbcff);
    opacity: .7;
}

.membership-plan.is-recommended::after {
    background: linear-gradient(90deg, #f97316, #ffd166);
    opacity: .95;
}

.admin-stat-grid article {
    position: relative;
    overflow: hidden;
}

.admin-stat-grid article::after {
    content: "";
    position: absolute;
    right: -24px;
    top: -24px;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(37, 111, 230, .08);
}

.data-table td,
.data-table th {
    border-bottom-color: #edf2f7;
}

.data-table tbody tr:last-child td {
    border-bottom: 0;
}

/* Final guard: keep filter labels readable even if older chip rules win earlier in cascade. */
.filter-panel .filter-chip,
.filter-panel--bar .filter-chip,
.paper-filter .filter-chip {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: auto !important;
    min-width: 48px;
    height: auto !important;
    min-height: 30px;
    padding: 4px 12px !important;
    border-radius: 999px !important;
    text-indent: 0 !important;
    overflow: visible !important;
    color: #1f2937 !important;
}

.filter-panel .filter-chip.is-active,
.filter-panel--bar .filter-chip.is-active,
.paper-filter .filter-chip.is-active {
    border: 1px solid #a9c8ff !important;
    background: linear-gradient(180deg, #edf5ff, #f8fbff) !important;
    color: #1d5fd3 !important;
}

/* Portal refinement: dense question-bank interface inspired by mature teaching platforms. */
:root {
    --bg: #f1f3f6;
    --surface: #ffffff;
    --surface-soft: #f7f9fc;
    --surface-muted: #eef4ff;
    --text: #1f2937;
    --muted: #667085;
    --subtle: #8a94a6;
    --line: #e5e7eb;
    --line-strong: #d0d5dd;
    --primary: #1f6feb;
    --primary-dark: #1554c2;
    --primary-soft: #eaf2ff;
    --accent: #f97316;
    --danger: #d92d20;
    --success: #16a34a;
    --shadow: 0 10px 24px rgba(16, 24, 40, .08);
    --radius: 6px;
}

html {
    scroll-behavior: smooth;
}

body.site-body,
body {
    background: #f1f3f6;
    color: var(--text);
    font-size: 14px;
    line-height: 1.65;
}

.container,
.site-main {
    width: min(1200px, calc(100% - 32px));
}

.site-main {
    padding: 14px 0 38px;
}

.portal-header {
    background: #fff;
    border-bottom: 1px solid #e6e8ed;
    box-shadow: 0 1px 0 rgba(16, 24, 40, .02);
}

.utility-bar {
    height: 42px;
    border-bottom: 1px solid #edf0f5;
    background: #fff;
    color: #4b5565;
    font-size: 13px;
}

.utility-bar__inner,
.utility-bar nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 42px;
}

.utility-brand {
    font-weight: 800;
    color: #1f6feb;
}

.utility-brand span {
    margin-left: 8px;
    color: #667085;
    font-weight: 400;
}

.utility-bar nav a {
    color: #344054;
}

.utility-bar nav a:hover {
    color: var(--primary);
}

.utility-login {
    min-width: 54px;
    text-align: center;
    border-radius: 4px;
    padding: 4px 11px;
    background: var(--primary);
    color: #fff !important;
}

.brand-search {
    display: grid;
    grid-template-columns: 220px minmax(360px, 1fr) 250px;
    gap: 24px;
    align-items: center;
    padding: 24px 0 18px;
}

.brand--portal {
    gap: 12px;
}

.brand--portal .brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #ffdf5d;
    color: #111827;
    border: 2px solid #111827;
    box-shadow: none;
}

.brand--portal b {
    font-size: 28px;
    color: #111827;
    line-height: 1.1;
    letter-spacing: 0;
}

.brand--portal small {
    margin-top: 4px;
    color: #667085;
}

.global-search {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 72px;
    align-items: center;
    border: 2px solid #2b78ff;
    border-radius: 6px;
    background: #fff;
    overflow: visible;
}

.global-search input {
    min-height: 48px;
    border: 0;
    border-radius: 0;
    box-shadow: none !important;
    padding: 11px 14px;
    font-size: 14px;
}

.global-search button {
    min-height: 38px;
    margin-right: 7px;
    border: 0;
    border-radius: 4px;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
}

.search-shortcuts {
    position: absolute;
    left: 0;
    top: calc(100% + 8px);
    display: flex;
    align-items: center;
    gap: 18px;
    color: #e23b2e;
    font-size: 12px;
}

.header-tools {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 20px;
}

.header-tools a {
    display: grid;
    place-items: center;
    gap: 4px;
    color: #1f6feb;
    font-size: 13px;
}

.header-tools b {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border: 2px solid #1f6feb;
    border-radius: 50%;
    background: #fff;
    color: #1f6feb;
    font-size: 13px;
    line-height: 1;
}

.workflow-nav {
    background: #fff;
}

.workflow-nav__inner {
    display: flex;
    align-items: center;
    gap: 24px;
    min-height: 56px;
    overflow-x: auto;
}

.workflow-nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 56px;
    color: #101828;
    font-size: 16px;
    white-space: nowrap;
}

.workflow-nav a:hover,
.workflow-nav a.is-active {
    color: var(--primary);
}

.workflow-nav a.is-active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 2px 2px 0 0;
}

.float-tools {
    position: fixed;
    right: 18px;
    top: 50%;
    z-index: 40;
    display: grid;
    gap: 10px;
    transform: translateY(-35%);
}

.float-tools a,
.float-tools button {
    display: grid;
    width: 56px;
    min-height: 62px;
    place-items: center;
    gap: 2px;
    border: 1px solid #e1e5ec;
    border-radius: 6px;
    background: #fff;
    color: #475467;
    box-shadow: 0 8px 18px rgba(16, 24, 40, .08);
}

.float-tools button {
    padding: 0;
}

.float-tools b {
    display: grid;
    min-width: 24px;
    height: 24px;
    place-items: center;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 12px;
}

.float-tools span {
    font-size: 12px;
}

.btn {
    min-height: 38px;
    border-radius: 4px;
    padding: 7px 14px;
    font-size: 14px;
    box-shadow: none;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: #fff;
    border-color: #cfd6e4;
    color: #1d2939;
}

.btn-ghost {
    background: #fff;
    border-color: transparent;
    color: #667085;
}

input,
select,
textarea {
    min-height: 38px;
    border-radius: 4px;
    border-color: #d0d5dd;
    font-size: 14px;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(31, 111, 235, .12);
}

.crumbs {
    margin: 2px 0 12px;
    color: #667085;
    font-size: 13px;
}

.home-portal {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr) 324px;
    gap: 12px;
    align-items: stretch;
}

.subject-board,
.home-side > *,
.home-banner,
.workbench-strip,
.exam-lane,
.table-panel,
.filter-panel,
.selection-sidebar,
.question-card,
.paper-row,
.smart-step,
.smart-result,
.paper-settings,
.paper-sheet,
.question-detail,
.side-panel {
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    background: #fff;
    box-shadow: none;
}

.subject-board {
    overflow: hidden;
}

.subject-board__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    padding: 0 14px;
    background: var(--primary);
    color: #fff;
}

.subject-board__head span {
    color: #dbeafe;
    font-size: 12px;
}

.stage-switcher {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    padding: 14px 12px 8px;
}

.stage-switcher a {
    display: grid;
    place-items: center;
    min-height: 34px;
    border-bottom: 2px solid transparent;
    color: #344054;
}

.stage-switcher a.is-active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 800;
}

.stage-switcher small {
    display: none;
}

.subject-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px 8px;
    padding: 8px 18px 20px;
}

.subject-grid a {
    display: grid;
    min-height: 28px;
    place-items: center;
    border-radius: 3px;
    color: #344054;
}

.subject-grid a:hover,
.subject-grid a.is-current {
    background: #eef5ff;
    color: var(--primary);
    font-weight: 800;
}

.subject-board__tip {
    margin: 0 14px 14px;
    padding: 12px;
    background: #f8fafc;
    border-top: 1px dashed #d0d5dd;
    color: #667085;
    font-size: 12px;
}

.subject-board__tip b,
.subject-board__tip span {
    display: block;
}

.home-main {
    display: grid;
    gap: 12px;
}

.home-banner {
    min-height: 240px;
    padding: 36px 34px;
    display: flex;
    align-items: center;
    background:
        linear-gradient(100deg, rgba(255, 250, 245, .98), rgba(235, 245, 255, .9)),
        repeating-linear-gradient(135deg, rgba(31, 111, 235, .08), rgba(31, 111, 235, .08) 1px, transparent 1px, transparent 14px);
    overflow: hidden;
}

.home-banner span {
    display: inline-flex;
    margin-bottom: 8px;
    padding: 3px 9px;
    border-radius: 3px;
    background: #fff3e8;
    color: #e35b13;
    font-weight: 800;
}

.home-banner h1 {
    margin: 0;
    color: #111827;
    font-size: 34px;
    line-height: 1.25;
    letter-spacing: 0;
}

.home-banner p {
    max-width: 590px;
    margin: 10px 0 18px;
    color: #475467;
    font-size: 15px;
}

.home-banner__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.workbench-strip {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    min-height: 132px;
    padding: 18px 20px;
}

.workbench-strip a {
    padding: 8px 14px;
    border-right: 1px solid #edf0f5;
}

.workbench-strip a:last-child {
    border-right: 0;
}

.workbench-strip b,
.workbench-strip span {
    display: block;
}

.workbench-strip b {
    color: #344054;
    font-size: 16px;
}

.workbench-strip span {
    margin-top: 8px;
    color: #667085;
    line-height: 1.8;
}

.workbench-strip a:hover b {
    color: var(--primary);
}

.home-side {
    display: grid;
    gap: 12px;
}

.login-card {
    padding: 18px;
}

.login-card b,
.login-card span {
    display: block;
}

.login-card b {
    font-size: 16px;
}

.login-card span {
    margin-top: 8px;
    color: #667085;
}

.login-card__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 16px;
}

.home-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
}

.home-stats div {
    padding: 18px;
    border-right: 1px solid #edf0f5;
    border-bottom: 1px solid #edf0f5;
}

.home-stats div:nth-child(2n) {
    border-right: 0;
}

.home-stats div:nth-last-child(-n+2) {
    border-bottom: 0;
}

.home-stats b,
.home-stats span {
    display: block;
}

.home-stats b {
    color: #e23b2e;
    font-size: 22px;
    line-height: 1;
}

.home-stats span {
    margin-top: 8px;
    color: #667085;
}

.feature-card {
    padding: 18px;
}

.feature-card h2 {
    margin: 0 0 14px;
    font-size: 16px;
}

.feature-card > div {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.feature-card a {
    display: grid;
    min-height: 74px;
    place-items: center;
    border-radius: 4px;
    background: #f8fafc;
    text-align: center;
}

.feature-card b {
    color: #344054;
}

.feature-card span {
    color: #667085;
    font-size: 12px;
}

.exam-lane,
.home-content-grid,
.home-type-panel {
    margin-top: 12px;
}

.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 16px 18px;
    border-bottom: 1px solid #edf0f5;
}

.section-head h2 {
    margin: 0;
    color: #1d2939;
    font-size: 18px;
}

.section-head p {
    margin: 3px 0 0;
    color: #667085;
    font-size: 13px;
}

.section-head a {
    color: var(--primary);
    white-space: nowrap;
}

.scenario-cards {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
    padding: 18px;
}

.scenario-cards a {
    display: block;
    min-height: 76px;
    padding: 14px 16px;
    border: 1px solid #cfe1ff;
    border-radius: 8px;
    background: linear-gradient(135deg, #f7fbff, #fffaf2);
}

.scenario-cards b,
.scenario-cards span {
    display: block;
}

.scenario-cards b {
    color: #0f62d9;
    font-size: 18px;
}

.scenario-cards span {
    margin-top: 6px;
    color: #667085;
}

.home-content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 1.05fr;
    gap: 12px;
}

.paper-link-list {
    display: grid;
    gap: 0;
    padding: 4px 18px 14px;
}

.paper-link-list a {
    padding: 12px 0;
    border-bottom: 1px solid #edf0f5;
}

.paper-link-list a:last-child {
    border-bottom: 0;
}

.paper-link-list b,
.paper-link-list span {
    display: block;
}

.paper-link-list b {
    color: #1d2939;
    line-height: 1.55;
}

.paper-link-list span {
    margin-top: 4px;
    color: #667085;
    font-size: 13px;
}

.type-stat-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0;
}

.type-stat-grid a {
    padding: 18px;
    border-right: 1px solid #edf0f5;
    text-align: center;
}

.type-stat-grid a:last-child {
    border-right: 0;
}

.type-stat-grid b,
.type-stat-grid span {
    display: block;
}

.type-stat-grid b {
    color: var(--primary);
    font-size: 22px;
}

.type-stat-grid span {
    color: #667085;
}

.selection-shell {
    display: grid;
    grid-template-columns: 264px minmax(0, 1fr);
    gap: 12px;
}

.selection-sidebar {
    position: sticky;
    top: 12px;
    align-self: start;
    padding: 0;
    overflow: hidden;
}

.sidebar-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid #edf0f5;
}

.sidebar-head h1 {
    margin: 0;
    font-size: 20px;
}

.sidebar-head p {
    margin: 3px 0 0;
    color: #667085;
    font-size: 13px;
}

.basket-mini {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 34px;
    padding: 0 10px;
    border-radius: 4px;
    background: #eef5ff;
    color: var(--primary);
}

.taxonomy-tabs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    padding: 12px;
    gap: 8px;
}

.taxonomy-tabs a {
    display: grid;
    min-height: 36px;
    place-items: center;
    border: 1px solid #d0d5dd;
    border-radius: 4px;
    color: #344054;
}

.taxonomy-tabs a.is-active {
    border-color: var(--primary);
    background: #eef5ff;
    color: var(--primary);
    font-weight: 800;
}

.tree-panel {
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.tree-panel__title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-top: 1px solid #edf0f5;
    border-bottom: 1px solid #edf0f5;
    background: #f8fafc;
}

.tree-panel__title a,
.link-tool {
    color: var(--primary);
}

.directory-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    padding: 12px;
}

.directory-tools input {
    min-height: 32px;
}

.directory-tools > div {
    display: flex;
    gap: 8px;
}

.link-tool {
    border: 0;
    background: transparent;
    padding: 0;
    font-size: 13px;
}

.tree-list {
    max-height: 640px;
    overflow: auto;
    padding: 0 8px 12px;
}

.tree-list--compact {
    max-height: 430px;
}

.catalog-tree,
.catalog-tree__children {
    list-style: none;
    margin: 0;
    padding: 0;
}

.catalog-tree__children {
    margin-left: 15px;
    border-left: 1px dotted #d0d5dd;
    padding-left: 8px;
}

.catalog-tree__summary {
    display: block;
    list-style: none;
    padding: 2px 0;
}

.catalog-tree__summary::-webkit-details-marker {
    display: none;
}

.catalog-tree__link,
.catalog-tree__label {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    min-height: 30px;
    padding: 4px 7px;
    border-radius: 4px;
    color: #344054;
}

.catalog-tree__label {
    color: #667085;
    font-weight: 700;
}

.catalog-tree__link span,
.catalog-tree__label span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.catalog-tree__link em,
.catalog-tree__label em {
    font-style: normal;
    color: #98a2b3;
    font-size: 12px;
}

.catalog-tree__link:hover,
.catalog-tree__link.is-active {
    background: #eef5ff;
    color: var(--primary);
}

.catalog-tree__branch.has-children > .catalog-tree__summary .catalog-tree__label span::before,
.catalog-tree__branch.has-children > .catalog-tree__summary .catalog-tree__link span::before {
    content: "+";
    display: inline-grid;
    width: 14px;
    height: 14px;
    margin-right: 5px;
    place-items: center;
    border-radius: 50%;
    background: #eef2f7;
    color: #667085;
    font-size: 12px;
    line-height: 1;
}

.catalog-tree__branch[open].has-children > .catalog-tree__summary .catalog-tree__label span::before,
.catalog-tree__branch[open].has-children > .catalog-tree__summary .catalog-tree__link span::before {
    content: "-";
}

.sidebar-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 14px;
    border-top: 1px solid #edf0f5;
}

.selection-main {
    min-width: 0;
}

.filter-panel--bar {
    padding: 0;
    overflow: hidden;
}

.filter-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 15px 18px;
    border-bottom: 1px solid #edf0f5;
}

.filter-title b {
    font-size: 18px;
}

.filter-title span {
    color: #667085;
}

.filter-row {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 12px;
    padding: 10px 18px;
    border-bottom: 1px dashed #edf0f5;
}

.filter-row__label {
    color: #667085;
    line-height: 30px;
}

.filter-row__label small {
    color: #98a2b3;
}

.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    color: #1d2939;
}

.filter-chip:hover,
.filter-chip.is-active {
    color: var(--primary);
    font-weight: 800;
}

.more-filter {
    border-bottom: 1px solid #edf0f5;
}

.more-filter summary {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    color: #667085;
    cursor: pointer;
}

.more-filter summary span {
    color: #98a2b3;
    font-size: 12px;
}

.filter-search {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr) auto auto;
    gap: 10px;
    align-items: center;
    padding: 14px 18px 16px;
}

.active-filter-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    margin: 10px 0;
    padding: 10px 14px;
    border: 1px solid #f8d7bc;
    border-radius: 4px;
    background: #fff8f0;
}

.active-filter-bar > span {
    color: #b54708;
    font-weight: 800;
}

.active-filter-bar > div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.active-filter-bar a {
    color: #b54708;
}

.active-filter-clear {
    white-space: nowrap;
}

.result-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 10px 0;
    padding: 11px 16px;
    border: 1px solid #edf0f5;
    border-radius: 4px;
    background: #fff;
}

.result-toolbar b {
    margin: 0 5px;
    color: #e23b2e;
    font-size: 18px;
}

.toolbar-label {
    color: #667085;
}

.toolbar-current {
    margin-left: 10px;
    padding: 2px 8px;
    border-radius: 3px;
    background: #eef5ff;
    color: var(--primary);
}

.toolbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-link {
    color: #344054;
}

.sort-link.is-active {
    color: var(--primary);
    font-weight: 800;
}

.question-list,
.paper-list {
    display: grid;
    gap: 10px;
}

.question-card {
    position: relative;
    padding: 0;
    overflow: hidden;
}

.question-card:hover,
.paper-row:hover {
    border-color: #c9dafc;
    box-shadow: 0 6px 16px rgba(31, 111, 235, .08);
}

.question-card__topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 18px;
    border-bottom: 1px solid #edf0f5;
    background: #fbfcfe;
}

.question-card__source {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    color: var(--primary);
}

.question-card__source em {
    color: #98a2b3;
    font-style: normal;
}

.question-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.question-card__meta span {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 0 7px;
    border-radius: 3px;
    background: #f2f4f7;
    color: #475467;
    font-size: 12px;
}

.question-card__bodyline {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px;
    padding: 16px 18px 10px;
}

.question-card__number {
    min-width: 28px;
    color: #111827;
    font-weight: 800;
    font-size: 16px;
}

.question-card__content {
    min-width: 0;
}

.question-card__stem {
    color: #111827;
    font-size: 15px;
    line-height: 1.85;
    word-break: break-word;
}

.question-card__stem img,
.question-card__answer img {
    max-width: 100%;
    height: auto;
}

.question-card__options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 18px;
    margin-top: 12px;
}

.question-card__option {
    display: flex;
    gap: 8px;
    min-height: 30px;
    align-items: flex-start;
    color: #1d2939;
}

.question-card__option b {
    color: #111827;
}

.question-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.question-card__tags span {
    padding: 3px 8px;
    border-radius: 3px;
    background: #eef5ff;
    color: #2463cf;
    font-size: 12px;
}

.question-card__answer {
    margin-top: 12px;
    border: 1px solid #e7eefb;
    border-radius: 4px;
    background: #fbfdff;
}

.question-card__answer summary {
    padding: 8px 12px;
    color: var(--primary);
    cursor: pointer;
    font-weight: 800;
}

.answer-grid {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: 12px;
    padding: 12px;
    border-top: 1px solid #edf0f5;
}

.answer-grid > div {
    min-width: 0;
}

.answer-grid b {
    display: block;
    margin-bottom: 4px;
    color: #344054;
}

.question-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 18px 14px;
}

.question-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.question-action {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 9px;
    border-radius: 4px;
    color: var(--primary);
}

.question-action:hover {
    background: #eef5ff;
}

.js-add-basket.is-added {
    background: #eef5ff;
    border-color: #a8c7ff;
    color: var(--primary);
}

.compact-list {
    padding: 12px;
}

.compact-list .question-card__answer {
    display: none;
}

.compact-list .question-card__topline,
.compact-list .question-card__footer {
    padding-left: 12px;
    padding-right: 12px;
}

.compact-list .question-card__bodyline {
    padding: 12px;
}

.paper-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 150px;
    gap: 16px;
    align-items: center;
    padding: 16px 18px;
}

.paper-row__label,
.paper-row__meta,
.paper-row__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.paper-row__label span {
    padding: 2px 7px;
    border-radius: 3px;
    background: #fff4ed;
    color: #c2410c;
    font-size: 12px;
}

.paper-row h2 {
    margin: 8px 0;
    font-size: 17px;
    line-height: 1.55;
}

.paper-row h2 a:hover {
    color: var(--primary);
}

.paper-row__meta {
    color: #667085;
}

.paper-row__meta span + span::before {
    content: "|";
    margin-right: 8px;
    color: #d0d5dd;
}

.paper-row__tags {
    margin-top: 10px;
}

.paper-row__tags a,
.paper-row__tags span {
    padding: 3px 8px;
    border-radius: 3px;
    background: #f2f4f7;
    color: #475467;
    font-size: 12px;
}

.paper-row__tags a:hover {
    background: #eef5ff;
    color: var(--primary);
}

.paper-row__actions {
    display: grid;
    gap: 10px;
}

.tool-title,
.page-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
    padding: 16px 18px;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    background: #fff;
}

.tool-title h1,
.page-title h1 {
    margin: 0;
    font-size: 22px;
}

.tool-title p,
.page-title p {
    margin: 4px 0 0;
    color: #667085;
}

.title-actions,
.form-actions,
.preset-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.smart-layout {
    display: grid;
    grid-template-columns: 420px minmax(0, 1fr);
    gap: 12px;
}

.smart-builder {
    display: grid;
    gap: 10px;
    align-self: start;
    position: sticky;
    top: 12px;
}

.smart-step {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    overflow: hidden;
}

.step-mark {
    display: grid;
    place-items: start center;
    padding-top: 18px;
    border-right: 1px solid #edf0f5;
    background: #f8fafc;
    color: var(--primary);
    font-weight: 900;
}

.smart-step__body {
    min-width: 0;
    padding: 16px;
}

.smart-step__body h2 {
    margin: 0 0 12px;
    font-size: 17px;
}

.smart-step__title {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.smart-mode-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-bottom: 12px;
    border: 1px solid #d0d5dd;
    border-radius: 4px;
    overflow: hidden;
}

.smart-mode-tabs a {
    display: grid;
    min-height: 36px;
    place-items: center;
    border-right: 1px solid #d0d5dd;
    color: #344054;
}

.smart-mode-tabs a:last-child {
    border-right: 0;
}

.smart-mode-tabs a.is-active {
    background: #eef5ff;
    color: var(--primary);
    font-weight: 800;
}

.smart-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.smart-grid label,
.paper-settings label {
    display: grid;
    gap: 6px;
    color: #475467;
    font-weight: 700;
}

.smart-tree {
    margin-top: 14px;
    border: 1px solid #edf0f5;
    border-radius: 4px;
    overflow: hidden;
}

.type-count-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.type-count-grid label {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 82px;
    gap: 8px;
    align-items: center;
    min-height: 42px;
    padding: 0 10px;
    border: 1px solid #edf0f5;
    border-radius: 4px;
    color: #475467;
}

.type-count-grid input {
    min-height: 30px;
}

.smart-result {
    padding: 0 0 14px;
}

.smart-result .result-toolbar {
    margin: 0;
    border-width: 0 0 1px;
    border-radius: 0;
}

.smart-result .question-list,
.smart-result .notice,
.smart-result .empty-state {
    margin: 12px;
}

.paper-editor {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 12px;
}

.paper-settings {
    position: sticky;
    top: 12px;
    align-self: start;
    display: grid;
    gap: 14px;
    padding: 18px;
}

.paper-settings__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 12px;
    border-bottom: 1px solid #edf0f5;
}

.paper-settings__head b {
    font-size: 17px;
}

.paper-settings__head span {
    color: #667085;
}

.paper-settings__head strong {
    color: #e23b2e;
}

.paper-settings__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.paper-preview {
    min-width: 0;
}

.paper-sheet {
    padding: 34px 42px;
    background: #fff;
}

.paper-sheet header {
    text-align: center;
    border-bottom: 2px solid #111827;
    padding-bottom: 16px;
    margin-bottom: 18px;
}

.paper-sheet h2 {
    margin: 0 0 10px;
    font-size: 26px;
}

.paper-sheet__toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
    padding: 10px 12px;
    border-radius: 4px;
    background: #f8fafc;
    color: #667085;
}

.paper-sheet__toolbar a {
    color: var(--primary);
}

.paper-question,
.paper-question-item {
    position: relative;
}

.paper-question {
    border: 1px solid #edf0f5;
    border-radius: 4px;
    margin-bottom: 12px;
    padding: 14px;
}

.paper-question__head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.paper-view {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 12px;
}

.paper-outline {
    position: sticky;
    top: 12px;
    align-self: start;
    padding: 16px;
}

.paper-outline h2,
.side-panel h2 {
    margin: 0 0 12px;
    font-size: 17px;
}

.info-list {
    display: grid;
    gap: 8px;
    margin: 0;
}

.info-list div {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 8px;
    padding: 8px 0;
    border-bottom: 1px solid #edf0f5;
}

.info-list dt {
    color: #667085;
}

.info-list dd {
    margin: 0;
    color: #1d2939;
}

.side-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.side-tag-list a {
    padding: 3px 8px;
    border-radius: 3px;
    background: #eef5ff;
    color: var(--primary);
}

.paper-section-title {
    margin: 12px 0 8px;
    padding: 10px 14px;
    border-left: 4px solid var(--primary);
    background: #fff;
    color: #111827;
    font-weight: 900;
}

.paper-score {
    position: absolute;
    right: 12px;
    top: 12px;
    padding: 3px 8px;
    border-radius: 3px;
    background: #fff8f0;
    color: #c2410c;
    font-size: 12px;
}

.detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 12px;
}

.question-detail,
.detail-side .side-panel {
    padding: 18px;
}

.detail-side {
    display: grid;
    gap: 12px;
    align-self: start;
    position: sticky;
    top: 12px;
}

.detail-section {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid #edf0f5;
}

.detail-section h2 {
    margin: 0 0 12px;
    font-size: 18px;
}

.entry-list {
    display: grid;
    gap: 10px;
}

.entry-list a {
    display: grid;
    gap: 4px;
    padding: 10px;
    border-radius: 4px;
    background: #f8fafc;
}

.entry-list b {
    color: #344054;
}

.entry-list span {
    color: #667085;
}

.empty-state,
.tree-empty,
.loading {
    padding: 24px;
    color: #667085;
    text-align: center;
}

.notice {
    border-radius: 4px;
    padding: 12px 14px;
}

.notice-warning {
    border: 1px solid #fedf89;
    background: #fffbeb;
    color: #92400e;
}

.notice-success {
    border: 1px solid #bbf7d0;
    background: #f0fdf4;
    color: #166534;
}

.laravel-pagination {
    margin-top: 14px;
}

.laravel-pagination nav {
    display: flex;
    justify-content: center;
}

.site-footer {
    background: #fff;
    border-top: 1px solid #e5e7eb;
    color: #667085;
}

.site-footer .container {
    min-height: 48px;
}

.toast {
    border-radius: 4px;
    background: #111827;
    color: #fff;
}

.admin-body {
    background: #f1f3f6;
}

.admin-sidebar {
    background: #14213d;
    border-right: 0;
}

.admin-sidebar nav a {
    border-radius: 4px;
}

.admin-main {
    background: #f1f3f6;
}

.admin-page-title,
.admin-stat-grid article,
.import-panel {
    border-radius: 4px;
    box-shadow: none;
}

.data-table {
    font-size: 13px;
}

.data-table th {
    background: #f8fafc;
    color: #475467;
}

@media (max-width: 1180px) {
    .brand-search,
    .home-portal,
    .smart-layout,
    .paper-editor,
    .paper-view,
    .detail-layout {
        grid-template-columns: 1fr;
    }

    .search-shortcuts {
        position: static;
        grid-column: 1 / -1;
        padding: 0 10px 10px;
    }

    .header-tools {
        justify-content: flex-start;
    }

    .selection-sidebar,
    .smart-builder,
    .paper-settings,
    .paper-outline,
    .detail-side {
        position: static;
    }

    .home-side {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 860px) {
    .utility-bar__inner,
    .utility-bar nav,
    .result-toolbar,
    .tool-title,
    .page-title,
    .question-card__topline,
    .question-card__footer {
        align-items: stretch;
        flex-direction: column;
    }

    .brand-search {
        gap: 16px;
        padding: 18px 0 12px;
    }

    .global-search {
        grid-template-columns: 1fr;
    }

    .global-search button {
        margin: 0 7px 7px;
    }

    .home-side,
    .home-content-grid,
    .selection-shell {
        grid-template-columns: 1fr;
    }

    .workbench-strip,
    .scenario-cards,
    .type-stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .paper-row {
        grid-template-columns: 1fr;
    }

    .filter-row,
    .filter-search,
    .active-filter-bar,
    .directory-tools {
        grid-template-columns: 1fr;
    }

    .question-card__options,
    .answer-grid,
    .smart-grid,
    .type-count-grid {
        grid-template-columns: 1fr;
    }

    .float-tools {
        display: none;
    }
}

@media (max-width: 560px) {
    .container,
    .site-main {
        width: min(100% - 20px, 1200px);
    }

    .workflow-nav__inner {
        gap: 18px;
    }

    .workflow-nav a {
        font-size: 15px;
    }

    .brand--portal b {
        font-size: 24px;
    }

    .home-banner {
        padding: 24px 18px;
    }

    .home-banner h1 {
        font-size: 26px;
    }

    .stage-switcher {
        grid-template-columns: repeat(3, 1fr);
    }

    .workbench-strip,
    .scenario-cards,
    .type-stat-grid,
    .home-stats,
    .feature-card > div,
    .login-card__actions,
    .sidebar-actions {
        grid-template-columns: 1fr;
    }

    .question-card__bodyline,
    .smart-step {
        grid-template-columns: 1fr;
    }

    .step-mark {
        place-items: center start;
        min-height: 38px;
        padding: 0 16px;
        border-right: 0;
        border-bottom: 1px solid #edf0f5;
    }

    .paper-sheet {
        padding: 18px;
    }
}

/* Member center and membership plans */
.member-auth {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 14px;
    align-items: stretch;
}

.member-auth__intro,
.member-auth__form,
.member-hero,
.membership-plan,
.member-rules,
.member-profile,
.member-summary article,
.member-quick a {
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    background: #fff;
}

.member-auth__intro {
    min-height: 430px;
    padding: 54px 50px;
    background:
        linear-gradient(110deg, rgba(255, 248, 240, .98), rgba(235, 245, 255, .96)),
        repeating-linear-gradient(135deg, rgba(249, 115, 22, .12), rgba(249, 115, 22, .12) 1px, transparent 1px, transparent 16px);
}

.member-auth__intro span,
.member-hero span {
    color: #f97316;
    font-weight: 800;
}

.member-auth__intro h1,
.member-hero h1 {
    max-width: 660px;
    margin: 10px 0;
    color: #111827;
    font-size: 34px;
    line-height: 1.25;
}

.member-auth__intro p,
.member-hero p {
    max-width: 600px;
    color: #475467;
    font-size: 15px;
}

.member-auth__benefits {
    display: grid;
    gap: 6px;
    max-width: 520px;
    margin-top: 28px;
    padding: 16px 18px;
    border-left: 4px solid #f97316;
    background: #fff;
}

.member-auth__benefits b {
    color: #1d2939;
}

.member-auth__form {
    display: grid;
    gap: 14px;
    align-self: start;
    padding: 28px;
}

.member-auth__form h2 {
    margin: 0;
    font-size: 22px;
}

.member-auth__form label {
    display: grid;
    gap: 7px;
    color: #475467;
    font-weight: 700;
}

.member-auth__links {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.member-auth__links a {
    color: var(--primary);
}

.member-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 18px;
    align-items: center;
    margin-bottom: 14px;
    padding: 30px 34px;
    background:
        linear-gradient(120deg, #fff7ed, #f5f9ff 70%),
        #fff;
}

.member-hero__status {
    display: grid;
    gap: 9px;
    padding: 18px;
    border-radius: 4px;
    background: #fff;
    border: 1px solid #fed7aa;
}

.member-hero__status b {
    color: #c2410c;
    font-size: 20px;
}

.membership-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 14px;
}

.membership-plans {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.membership-plan {
    position: relative;
    display: grid;
    gap: 14px;
    padding: 24px;
}

.membership-plan.is-recommended {
    border-color: #f97316;
    box-shadow: 0 10px 24px rgba(249, 115, 22, .12);
}

.plan-badge {
    position: absolute;
    right: 16px;
    top: 0;
    padding: 4px 10px;
    border-radius: 0 0 4px 4px;
    background: #f97316;
    color: #fff;
    font-weight: 800;
}

.membership-plan h2 {
    margin: 0;
    font-size: 20px;
}

.plan-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.plan-price b {
    color: #e23b2e;
    font-size: 34px;
    line-height: 1;
}

.plan-price del {
    color: #98a2b3;
}

.membership-plan p {
    margin: 0;
    color: #667085;
}

.membership-plan ul {
    display: grid;
    gap: 9px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.membership-plan li {
    position: relative;
    padding-left: 18px;
    color: #344054;
}

.membership-plan li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .7em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary);
}

.member-rules {
    display: grid;
    gap: 14px;
    align-self: start;
    padding: 20px;
}

.member-rules h2 {
    margin: 0;
    font-size: 18px;
}

.member-rules div {
    display: grid;
    gap: 5px;
    padding-top: 12px;
    border-top: 1px solid #edf0f5;
}

.member-rules b {
    color: #1d2939;
}

.member-rules span {
    color: #667085;
}

.member-center {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 14px;
}

.member-profile {
    position: sticky;
    top: 12px;
    align-self: start;
    display: grid;
    gap: 12px;
    justify-items: stretch;
    padding: 24px;
    text-align: center;
}

.member-avatar {
    display: grid;
    width: 72px;
    height: 72px;
    place-items: center;
    margin: 0 auto;
    border-radius: 50%;
    background: #fff1d6;
    color: #c2410c;
    font-size: 28px;
    font-weight: 900;
}

.member-profile h1 {
    margin: 0;
    font-size: 20px;
}

.member-profile p {
    margin: 0;
    color: #667085;
}

.member-level {
    display: inline-flex;
    justify-content: center;
    min-height: 34px;
    align-items: center;
    border-radius: 4px;
    background: #f2f4f7;
    color: #475467;
    font-weight: 800;
}

.member-level.is-vip {
    background: #fff4ed;
    color: #c2410c;
}

.member-dashboard {
    display: grid;
    gap: 14px;
}

.member-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.member-summary article {
    padding: 18px;
}

.member-summary span,
.member-summary b {
    display: block;
}

.member-summary span {
    color: #667085;
}

.member-summary b {
    margin-top: 8px;
    color: #111827;
    font-size: 20px;
}

.member-quick {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.member-quick a {
    padding: 18px;
}

.member-quick b,
.member-quick span {
    display: block;
}

.member-quick b {
    color: var(--primary);
    font-size: 17px;
}

.member-quick span {
    margin-top: 5px;
    color: #667085;
}

.member-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.member-list {
    display: grid;
    padding: 4px 18px 14px;
}

.member-list a {
    display: grid;
    gap: 4px;
    padding: 12px 0;
    border-bottom: 1px solid #edf0f5;
}

.member-list a:last-child {
    border-bottom: 0;
}

.member-list b {
    color: #1d2939;
}

.member-list span {
    color: #667085;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 8px;
    border-radius: 4px;
    background: #f2f4f7;
    color: #475467;
    font-size: 12px;
    font-weight: 800;
}

.status-pill--enabled {
    background: #ecfdf3;
    color: #027a48;
}

.member-admin-form,
.member-admin-quota,
.plan-inline-form {
    display: grid;
    gap: 8px;
}

.member-admin-quota label {
    display: grid;
    grid-template-columns: 42px 100px;
    gap: 8px;
    align-items: center;
}

.plan-editor {
    margin-bottom: 14px;
}

.membership-plan-builder,
.membership-plan-admin-list {
    display: grid;
    gap: 16px;
}

.plan-template-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.plan-template-row .btn {
    min-height: 34px;
    padding-inline: 14px;
}

.membership-plan-admin-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.plan-card-editor {
    display: grid;
    gap: 18px;
    padding: 22px;
}

.plan-card-editor__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.plan-card-editor__title {
    display: flex;
    align-items: center;
    gap: 14px;
}

.plan-card-editor__title h3 {
    margin: 0 0 4px;
    color: var(--text-strong);
    font-size: 18px;
    font-weight: 700;
}

.plan-card-editor__title p,
.plan-card-editor__meta {
    margin: 0;
    color: var(--muted);
    font-size: 12.5px;
}

.plan-card-editor__icon-preview {
    width: 50px;
    height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--primary-soft);
    color: var(--primary);
    flex: 0 0 auto;
}

.plan-card-editor__icon-preview .icon {
    width: 24px;
    height: 24px;
}

.plan-card-editor__toggles {
    display: grid;
    gap: 10px;
    justify-items: end;
}

.plan-card-editor__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.plan-card-editor__grid label,
.plan-features-field {
    display: grid;
    gap: 8px;
    color: var(--text-strong);
    font-size: 13px;
    font-weight: 600;
}

.plan-field-label {
    color: var(--text-strong);
    font-size: 13px;
    font-weight: 600;
}

.plan-icon-picker {
    display: grid;
    gap: 10px;
}

.plan-icon-picker__grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
}

.plan-icon-option {
    position: relative;
}

.plan-icon-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.plan-icon-option span {
    min-height: 86px;
    display: grid;
    gap: 8px;
    justify-items: center;
    align-content: center;
    padding: 12px 8px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    transition: border-color .15s var(--ease), box-shadow .15s var(--ease), transform .15s var(--ease);
}

.plan-icon-option b {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--surface-soft);
    color: var(--primary);
}

.plan-icon-option b .icon {
    width: 18px;
    height: 18px;
}

.plan-icon-option em {
    color: var(--muted);
    font-style: normal;
    font-size: 12px;
}

.plan-icon-option input:checked + span {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 111, 230, .12);
    transform: translateY(-1px);
}

.plan-features-field textarea {
    min-height: 120px;
}

@media (max-width: 980px) {
    .member-auth,
    .member-hero,
    .membership-layout,
    .member-center,
    .member-columns {
        grid-template-columns: 1fr;
    }

    .membership-plans,
    .member-summary,
    .member-quick,
    .membership-plan-admin-grid,
    .plan-card-editor__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .plan-icon-picker__grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .member-profile {
        position: static;
    }
}

@media (max-width: 620px) {
    .member-auth__intro,
    .member-hero {
        padding: 24px 18px;
    }

    .member-auth__intro h1,
    .member-hero h1 {
        font-size: 26px;
    }

    .membership-plans,
    .member-summary,
    .member-quick,
    .membership-plan-admin-grid,
    .plan-card-editor__grid,
    .plan-icon-picker__grid {
        grid-template-columns: 1fr;
    }

    .plan-card-editor__head {
        flex-direction: column;
    }

    .plan-card-editor__toggles {
        justify-items: start;
    }
}

/* Visual polish layer: softer, mature platform feel without changing layouts. */
:root {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-soft: #f8fbff;
    --surface-muted: #eef5ff;
    --line: #e3e9f2;
    --line-strong: #cbd5e1;
    --primary: #256fe6;
    --primary-dark: #1757c2;
    --primary-soft: #eaf3ff;
    --shadow: 0 12px 30px rgba(31, 45, 61, .08);
    --shadow-soft: 0 8px 22px rgba(31, 45, 61, .055);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
}

body.site-body,
body {
    background:
        radial-gradient(circle at 16% 0%, rgba(37, 111, 230, .045), transparent 34%),
        linear-gradient(180deg, #f7faff 0%, #f2f5f9 42%, #f4f7fb 100%);
}

.portal-header {
    border-bottom-color: rgba(203, 213, 225, .75);
    box-shadow: 0 6px 22px rgba(15, 23, 42, .035);
}

.utility-bar {
    background: rgba(255, 255, 255, .92);
}

.brand--portal .brand-mark {
    border: 0;
    background: linear-gradient(145deg, #ffe784, #ffc857);
    box-shadow: 0 8px 18px rgba(245, 158, 11, .22);
}

.global-search {
    border: 1px solid rgba(37, 111, 230, .5);
    border-radius: 14px;
    box-shadow: 0 10px 24px rgba(37, 111, 230, .09);
    overflow: hidden;
}

.global-search input {
    min-height: 50px;
    padding-left: 18px;
}

.global-search button {
    min-height: 40px;
    margin-right: 8px;
    border-radius: 10px;
    background: linear-gradient(135deg, #2f7cf6, #1d5fd3);
    box-shadow: 0 8px 16px rgba(37, 111, 230, .18);
}

.header-tools a b,
.float-tools b {
    border: 0;
    background: linear-gradient(145deg, #eef5ff, #fff);
    color: var(--primary);
    box-shadow: inset 0 0 0 1px rgba(37, 111, 230, .28), 0 8px 16px rgba(37, 111, 230, .08);
}

.workflow-nav__inner {
    gap: 14px;
}

.workflow-nav a {
    min-height: 48px;
    padding: 0 10px;
    border-radius: 12px 12px 0 0;
}

.workflow-nav a:hover {
    background: #f3f8ff;
}

.workflow-nav a.is-active::after {
    left: 10px;
    right: 10px;
    height: 4px;
    border-radius: 999px;
}

.btn,
.question-action,
.link-tool,
.sort-link,
.filter-chip,
.taxonomy-tabs a,
.basket-mini,
.status-pill {
    border-radius: 999px;
}

.btn {
    min-height: 40px;
    padding-inline: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, #317df4, #1e62d5);
    border-color: transparent;
    box-shadow: 0 9px 18px rgba(37, 111, 230, .18);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #236ee5, #174fae);
    box-shadow: 0 12px 22px rgba(37, 111, 230, .22);
}

.btn-secondary {
    border-color: #d7e0ed;
    background: linear-gradient(180deg, #fff, #f8fafc);
}

input,
select,
textarea {
    border-radius: 10px;
    border-color: #d9e2ee;
    background: #fff;
}

input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 4px rgba(37, 111, 230, .12);
}

.subject-board,
.home-side > *,
.home-banner,
.workbench-strip,
.exam-lane,
.table-panel,
.filter-panel,
.selection-sidebar,
.question-card,
.paper-row,
.smart-step,
.smart-result,
.paper-settings,
.paper-sheet,
.question-detail,
.side-panel,
.member-auth__intro,
.member-auth__form,
.member-hero,
.membership-plan,
.member-rules,
.member-profile,
.member-summary article,
.member-quick a,
.admin-page-title,
.admin-stat-grid article,
.import-panel {
    border-color: rgba(214, 224, 237, .95);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

.subject-board,
.selection-sidebar,
.smart-step,
.member-profile,
.paper-settings,
.paper-outline,
.detail-side .side-panel {
    overflow: hidden;
}

.subject-board__head {
    border-radius: var(--radius) var(--radius) 0 0;
    background: linear-gradient(135deg, #2f7cf6, #1e62d5);
}

.home-banner,
.member-auth__intro,
.member-hero {
    border-radius: var(--radius-lg);
    background:
        linear-gradient(115deg, rgba(255, 251, 245, .98), rgba(241, 247, 255, .96) 62%, rgba(255, 255, 255, .98)),
        repeating-linear-gradient(135deg, rgba(37, 111, 230, .06), rgba(37, 111, 230, .06) 1px, transparent 1px, transparent 18px);
}

.home-banner__actions .btn,
.member-hero__status .btn {
    border-radius: 999px;
}

.workbench-strip,
.feature-card a,
.scenario-cards a,
.member-quick a {
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.workbench-strip a:hover,
.scenario-cards a:hover,
.member-quick a:hover,
.feature-card a:hover {
    transform: translateY(-2px);
}

.scenario-cards a {
    border-radius: 14px;
    box-shadow: 0 10px 20px rgba(37, 111, 230, .06);
}

.section-head {
    border-radius: var(--radius) var(--radius) 0 0;
    background: linear-gradient(180deg, #fff, #fbfdff);
}

.filter-panel--bar,
.tree-panel,
.smart-tree {
    border-radius: var(--radius);
}

.tree-panel__title,
.question-card__topline,
.paper-sheet__toolbar {
    background: linear-gradient(180deg, #fbfdff, #f7faff);
}

.catalog-tree__link,
.catalog-tree__label,
.question-card__meta span,
.question-card__tags span,
.paper-row__tags a,
.paper-row__tags span,
.paper-row__label span {
    border-radius: 999px;
}

.catalog-tree__link:hover,
.catalog-tree__link.is-active {
    background: linear-gradient(135deg, #edf5ff, #f8fbff);
}

.question-card {
    overflow: hidden;
}

.question-card:hover,
.paper-row:hover,
.membership-plan:hover,
.member-summary article:hover {
    border-color: rgba(37, 111, 230, .32);
    box-shadow: 0 14px 30px rgba(37, 111, 230, .095);
}

.question-card__answer {
    border-radius: 12px;
    background: linear-gradient(180deg, #fbfdff, #fff);
}

.paper-row {
    border-radius: var(--radius);
}

.paper-row__actions .btn,
.sidebar-actions .btn,
.paper-settings__actions .btn {
    border-radius: 999px;
}

.tool-title,
.page-title,
.result-toolbar,
.active-filter-bar {
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

.active-filter-bar {
    border-color: #ffd7b8;
    background: linear-gradient(135deg, #fff8f0, #fff);
}

.smart-mode-tabs {
    border-radius: 999px;
}

.smart-mode-tabs a:first-child {
    border-radius: 999px 0 0 999px;
}

.smart-mode-tabs a:last-child {
    border-radius: 0 999px 999px 0;
}

.type-count-grid label {
    border-radius: 12px;
    background: #fbfdff;
}

.float-tools a,
.float-tools button {
    border-radius: 14px;
    border-color: rgba(214, 224, 237, .95);
    box-shadow: 0 14px 28px rgba(15, 23, 42, .10);
}

.membership-plan {
    border-radius: 18px;
    overflow: hidden;
}

.membership-plan.is-recommended {
    box-shadow: 0 18px 36px rgba(249, 115, 22, .16);
}

.plan-badge {
    right: 18px;
    border-radius: 0 0 12px 12px;
}

.plan-price b {
    color: #e4512a;
}

.member-hero__status {
    border-radius: 16px;
    box-shadow: 0 12px 24px rgba(249, 115, 22, .10);
}

.member-avatar {
    box-shadow: 0 12px 24px rgba(245, 158, 11, .20);
}

.member-level {
    border-radius: 999px;
}

.member-list a {
    border-radius: 10px;
    padding-inline: 10px;
}

.member-list a:hover {
    background: #f7fbff;
}

.data-table {
    border-collapse: separate;
    border-spacing: 0;
}

.data-table th:first-child {
    border-top-left-radius: 10px;
}

.data-table th:last-child {
    border-top-right-radius: 10px;
}

.data-table tr:hover td {
    background: #fbfdff;
}

.admin-sidebar {
    background: linear-gradient(180deg, #14213d, #0f1a30);
    box-shadow: 10px 0 30px rgba(15, 23, 42, .12);
}

.admin-sidebar nav a {
    border-radius: 12px;
}

.admin-sidebar nav a:hover {
    background: rgba(255, 255, 255, .10);
}

.toast {
    border-radius: 999px;
    box-shadow: 0 16px 34px rgba(15, 23, 42, .22);
}

@media (max-width: 760px) {
    .global-search,
    .home-banner,
    .member-auth__intro,
    .member-hero,
    .membership-plan {
        border-radius: 14px;
    }
}

/* Product refinement layer 2026-06-21. Keep this last so state styles stay stable. */
:root {
    --bg: #f3f6fb;
    --surface: #ffffff;
    --surface-soft: #f8fbff;
    --surface-muted: #edf4ff;
    --text: #152238;
    --muted: #5d6b80;
    --subtle: #8290a3;
    --line: #dfe7f1;
    --line-strong: #c8d5e4;
    --primary: #1f66d4;
    --primary-dark: #174faa;
    --primary-soft: #eaf3ff;
    --accent: #c56a12;
    --shadow: 0 14px 32px rgba(21, 34, 56, .08);
    --shadow-soft: 0 8px 22px rgba(21, 34, 56, .055);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
}

body.site-body,
body {
    background:
        linear-gradient(180deg, #f8fbff 0%, #f1f5fa 42%, #f4f7fb 100%) !important;
    color: var(--text);
}

.portal-header {
    background: rgba(255, 255, 255, .98);
    border-bottom: 1px solid rgba(203, 213, 225, .8);
    box-shadow: 0 8px 26px rgba(15, 23, 42, .045);
}

.utility-bar {
    background: #f8fafc;
    border-bottom: 1px solid #e8eef6;
}

.utility-brand {
    color: #32445c;
    font-weight: 700;
}

.utility-brand span,
.utility-bar nav a {
    color: #64748b;
}

.utility-bar nav a:hover {
    color: var(--primary);
}

.brand-search {
    padding-top: 16px;
    padding-bottom: 14px;
}

.brand--portal .brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: linear-gradient(145deg, #ffe288, #f5b83d);
    color: #1f2937;
    box-shadow: 0 12px 22px rgba(197, 106, 18, .18);
}

.brand--portal b {
    color: #12213a;
    font-size: 22px;
}

.brand--portal small {
    color: #6b7789;
}

.global-search {
    border: 1px solid #b9cff6;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 10px 22px rgba(31, 102, 212, .09);
}

.global-search input {
    background: transparent;
}

.global-search button {
    background-color: var(--primary);
    background-image: linear-gradient(135deg, #347df1, var(--primary));
    border-radius: 10px;
}

.header-tools a {
    border-color: #dfe7f1;
    background: #fff;
    box-shadow: 0 6px 16px rgba(21, 34, 56, .045);
}

.header-tools a:hover {
    border-color: #b9cff6;
    transform: translateY(-1px);
}

.header-tools a b,
.float-tools b {
    background-color: #eef5ff;
    background-image: none;
    color: var(--primary);
}

.workflow-nav {
    background: #fff;
    border-top: 1px solid #edf2f7;
    border-bottom: 1px solid #dfe7f1;
}

.workflow-nav__inner {
    gap: 12px;
}

.workflow-nav a {
    min-height: 46px;
    padding: 0 11px;
    border-radius: 10px 10px 0 0;
    color: #34445a;
}

.workflow-nav a:hover {
    background-color: #f2f7ff;
    color: var(--primary);
}

.workflow-nav a.is-active {
    color: var(--primary);
    font-weight: 800;
}

.workflow-nav a.is-active::after {
    left: 10px;
    right: 10px;
    height: 4px;
    border-radius: 999px;
    background: var(--primary);
}

.selection-shell {
    gap: 14px;
    align-items: start;
}

.selection-sidebar,
.filter-panel,
.filter-panel--bar,
.result-toolbar,
.active-filter-bar,
.question-card,
.paper-row,
.member-hero,
.membership-plan,
.member-rules,
.member-profile,
.paper-sheet,
.smart-step,
.smart-result,
.paper-settings,
.question-detail,
.side-panel {
    border: 1px solid var(--line);
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

.selection-sidebar {
    top: 14px;
}

.sidebar-head,
.filter-title,
.question-card__topline,
.tree-panel__title,
.paper-sheet__toolbar {
    background: linear-gradient(180deg, #ffffff, #f8fbff);
}

.sidebar-head {
    padding: 17px 16px;
}

.sidebar-head h1 {
    color: #152238;
    font-size: 21px;
}

.sidebar-head p,
.filter-title span {
    color: #69778b;
}

.basket-mini {
    border: 1px solid #cfe0ff;
    background: #eef5ff;
    color: var(--primary);
    font-weight: 800;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .7);
}

.taxonomy-tabs {
    background: #fbfdff;
}

.taxonomy-tabs a {
    border-color: #d7e2f0;
    background: #fff;
    color: #34445a;
    border-radius: 10px;
}

.taxonomy-tabs a.is-active {
    border-color: #a9c6fb;
    background: #eef5ff;
    color: var(--primary);
    box-shadow: inset 0 0 0 1px rgba(31, 102, 212, .06);
}

.tree-panel {
    border: 0;
    box-shadow: none;
}

.tree-panel__title {
    border-color: #e8eef6;
}

.directory-tools {
    background: #fff;
}

.directory-tools input {
    min-height: 34px;
    border-radius: 999px;
}

.link-tool {
    min-height: 30px;
    padding: 0 9px;
    border: 1px solid transparent;
    border-radius: 999px;
}

.link-tool:hover {
    border-color: #cfe0ff;
    background: #f4f8ff;
}

.tree-list {
    padding: 8px 8px 14px;
    scrollbar-color: #c8d5e4 #f4f7fb;
}

.catalog-tree__children {
    border-left-color: #d8e3f0;
}

.catalog-tree__link,
.catalog-tree__label {
    min-height: 32px;
    padding: 5px 9px;
    border-radius: 8px;
    color: #34445a;
}

.catalog-tree__link:hover {
    background-color: #f4f8ff;
    color: var(--primary);
}

.catalog-tree__link.is-active {
    background-color: #eaf3ff !important;
    background-image: none !important;
    color: #1554bd !important;
    font-weight: 800;
    box-shadow: inset 3px 0 0 var(--primary);
}

.filter-panel--bar {
    overflow: hidden;
}

.filter-title {
    padding: 16px 18px;
    border-bottom-color: #e8eef6;
}

.filter-title b {
    color: #152238;
}

.filter-row {
    grid-template-columns: 76px minmax(0, 1fr);
    align-items: start;
    padding: 11px 18px;
    border-bottom-color: #edf2f7;
}

.filter-row__label {
    color: #6b7789;
    font-weight: 700;
}

.filter-chips {
    gap: 8px 10px;
}

.filter-panel .filter-chip,
.filter-panel--bar .filter-chip,
.paper-filter .filter-chip,
.filter-chip {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center;
    width: auto !important;
    min-width: auto !important;
    min-height: 30px !important;
    padding: 0 10px !important;
    border: 1px solid transparent !important;
    border-radius: 999px !important;
    background-color: transparent !important;
    background-image: none !important;
    color: #334155 !important;
    font-size: 14px;
    font-weight: 500 !important;
    line-height: 28px !important;
    box-shadow: none !important;
}

.filter-panel .filter-chip:hover,
.filter-panel--bar .filter-chip:hover,
.paper-filter .filter-chip:hover,
.filter-chip:hover {
    border-color: #cfe0ff !important;
    background-color: #f4f8ff !important;
    color: var(--primary) !important;
}

.filter-panel .filter-chip.is-active,
.filter-panel--bar .filter-chip.is-active,
.paper-filter .filter-chip.is-active,
.filter-chip.is-active {
    border-color: #abc8ff !important;
    background-color: #eef6ff !important;
    background-image: none !important;
    color: #1554bd !important;
    font-weight: 800 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .7) !important;
}

.more-filter summary {
    color: #6b7789;
}

.filter-search {
    padding: 15px 18px 17px;
}

.filter-search input {
    border-radius: 999px;
}

.result-toolbar {
    margin: 12px 0;
    padding: 12px 16px;
}

.result-toolbar b {
    color: #d6462f;
}

.toolbar-current {
    border-radius: 999px;
    background: #eef5ff;
}

.sort-link {
    min-height: 32px;
    padding: 0 9px;
    border-radius: 999px;
}

.sort-link:hover,
.sort-link.is-active {
    background: #eef5ff;
    color: var(--primary);
}

.question-list,
.paper-list {
    gap: 12px;
}

.question-card {
    position: relative;
    overflow: hidden;
    border-color: #dfe7f1;
}

.question-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), #f0b04f);
    opacity: .75;
}

.question-card:hover,
.paper-row:hover,
.membership-plan:hover {
    border-color: #bfd2f1;
    box-shadow: 0 16px 34px rgba(31, 102, 212, .09);
    transform: translateY(-1px);
}

.question-card__topline {
    padding: 12px 18px 10px;
    border-bottom-color: #e8eef6;
}

.question-card__source {
    color: var(--primary);
    font-weight: 800;
}

.question-card__source em {
    color: #8b98aa;
    font-weight: 500;
}

.question-card__meta span {
    min-height: 25px;
    padding: 0 9px;
    border: 1px solid #e4ebf5;
    background: #f6f8fb;
    color: #536174;
}

.question-card__bodyline {
    padding: 17px 18px 10px;
}

.question-card__number {
    color: #13213a;
}

.question-card__stem {
    color: #172033;
    font-size: 15px;
    line-height: 1.9;
}

.question-card__options {
    gap: 8px 14px;
}

.question-card__option {
    min-height: 34px;
    padding: 6px 10px;
    border: 1px solid #e7eef7;
    border-radius: 8px;
    background: #fbfdff;
    transition: border-color .16s ease, background .16s ease;
}

.question-card__option:hover {
    border-color: #cfe0ff;
    background: #f7fbff;
}

.question-card__option b {
    display: inline-grid;
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    place-items: center;
    border-radius: 999px;
    background: #edf4ff;
    color: var(--primary);
    line-height: 1;
}

.question-card__tags span {
    border: 1px solid #dbe8ff;
    background: #f2f7ff;
    color: #2861bf;
}

.question-card__answer {
    border-color: #dfe9f6;
    border-radius: 10px;
    background: #fbfdff;
}

.question-card__answer summary {
    color: var(--primary);
}

.question-card__footer {
    padding: 10px 18px 15px;
    border-top: 1px solid #edf2f7;
    background: #fff;
}

.question-action {
    min-height: 32px;
    padding: 0 10px;
    border-radius: 999px;
    color: var(--primary);
}

.question-action:hover {
    background: #eef5ff;
}

.question-card__actions .btn {
    min-height: 34px;
    padding: 0 14px;
}

.js-add-basket.is-added,
.btn-primary.js-add-basket.is-added {
    border-color: #fdba74 !important;
    background-color: #fff7ed !important;
    background-image: none !important;
    color: #9a3412 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .75), 0 8px 18px rgba(197, 106, 18, .08) !important;
}

.js-add-basket.is-added:hover,
.btn-primary.js-add-basket.is-added:hover {
    border-color: #fb923c !important;
    background-color: #ffedd5 !important;
    color: #7c2d12 !important;
}

/* FINAL FLOATING GRADE PANEL FIX 2026-06-21 */
.selection-shell {
    position: relative !important;
    overflow: visible !important;
}

.selection-sidebar {
    z-index: 9000 !important;
    overflow: visible !important;
}

@media (min-width: 1181px) {
    .selection-sidebar {
        position: sticky !important;
    }
}

@media (max-width: 1180px) {
    .selection-sidebar {
        z-index: auto !important;
    }
}

.selection-main,
.filter-panel,
.filter-panel--bar,
.result-toolbar,
.question-list {
    position: relative;
    z-index: 1;
}

.grade-picker {
    position: relative !important;
    z-index: 9100 !important;
    overflow: visible !important;
}

.grade-picker__panel {
    z-index: 9200 !important;
    max-width: calc(100vw - 34px) !important;
}
/* FINAL PLATFORM FILTER/NAV NORMALIZATION 2026-06-22 EOF */
.portal-header,
.workflow-nav,
.workflow-nav__inner,
.workflow-subject-nav,
.workflow-subject-nav__panel {
    overflow: visible !important;
}

.workflow-nav {
    position: relative;
    z-index: 12000;
}

.workflow-nav__inner {
    position: relative;
    z-index: 12001;
}

.workflow-subject-nav {
    position: relative !important;
    z-index: 12100 !important;
    flex: 0 0 198px;
}

.workflow-subject-nav__button {
    cursor: pointer;
}

.workflow-subject-nav__panel {
    width: 420px !important;
    top: calc(100% - 1px) !important;
    left: 0 !important;
    z-index: 12200 !important;
    box-shadow: 0 22px 44px rgba(15, 23, 42, .16) !important;
}

.workflow-subject-nav.is-open .workflow-subject-nav__panel,
.grade-picker.is-open .grade-picker__panel {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    transform: translateY(0) !important;
}

.selection-shell {
    display: grid;
    grid-template-columns: 286px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    position: relative !important;
    overflow: visible !important;
}

.selection-sidebar {
    top: 16px;
    position: sticky !important;
    z-index: 9000 !important;
    overflow: visible !important;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06);
}

.selection-main {
    display: grid;
    gap: 14px;
    position: relative;
    z-index: 1;
}

.tree-panel--catalog,
.filter-panel--bar,
.active-filter-bar,
.result-toolbar {
    border-radius: 14px !important;
    background: #fff !important;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06) !important;
    border: 1px solid #e8eef6 !important;
}

.filter-panel,
.filter-panel--bar,
.result-toolbar,
.question-list {
    position: relative;
    z-index: 1;
}

.filter-panel--bar {
    overflow: visible !important;
    border-radius: 0 !important;
    box-shadow: none !important;
}

.filter-panel--bar form {
    display: grid;
    gap: 0;
}

.filter-title {
    padding: 18px 20px !important;
    border-bottom: 1px solid #edf2f7 !important;
}

.filter-title b {
    font-size: 18px;
    color: #1e293b;
}

.filter-row {
    grid-template-columns: 72px minmax(0, 1fr) !important;
    gap: 12px !important;
    padding: 13px 20px !important;
    border-top: 1px solid #f1f5f9;
}

.filter-row--stacked {
    align-items: start;
}

.filter-row__label {
    padding-top: 7px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.filter-row__label small {
    color: #94a3b8;
    font-size: 12px;
    font-weight: 500;
}

.filter-grid {
    grid-template-columns: repeat(auto-fill, minmax(116px, 1fr)) !important;
    gap: 8px !important;
}

.filter-grid__item {
    justify-content: flex-start;
    min-height: 44px !important;
    padding: 8px 10px !important;
    border-radius: 12px !important;
    font-size: 12.5px !important;
    line-height: 1.5 !important;
    white-space: normal !important;
    text-align: center;
}

.filter-grid__item.is-active {
    border-color: #8fb8ff !important;
    background: #eef5ff !important;
    color: #1d4ed8 !important;
}

.filter-search {
    align-items: center;
    gap: 12px;
    padding: 14px 20px 18px !important;
    border-top: 1px solid #edf2f7;
}

.active-filter-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    align-items: start;
    padding: 14px 18px !important;
    border-radius: 0 0 12px 12px !important;
}

.active-filter-bar > span {
    padding-top: 4px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.active-filter-bar > div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.active-filter-bar a {
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #f3f7ff;
    color: #2b4da1;
    font-size: 12.5px;
}

.active-filter-bar .active-filter-clear {
    background: transparent;
    color: #64748b;
}

.result-toolbar {
    padding: 14px 18px !important;
}

.tree-panel__title {
    padding: 15px 16px 10px !important;
    border-bottom: 1px solid #edf2f7;
}

.tree-panel__title b {
    font-size: 15px;
    color: #1e293b;
}

.directory-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto !important;
    gap: 10px !important;
    padding: 12px 16px !important;
    border-bottom: 1px solid #f1f5f9;
}

.directory-tools input {
    height: 34px;
    border-radius: 9px;
    border: 1px solid #dbe5f1;
    background: #fbfdff;
}

.directory-tools .link-tool {
    min-height: 32px;
    padding: 0 10px;
    border-radius: 8px;
    background: #f8fbff;
    color: #475569;
}

.tree-list--catalog {
    max-height: calc(100vh - 300px);
    padding: 8px 12px 14px !important;
}

.catalog-tree + .catalog-tree {
    margin-top: 2px;
}

.catalog-tree__summary {
    min-height: 34px;
    padding: 0 6px !important;
    border-radius: 9px;
}

.catalog-tree__summary:hover {
    background: #f8fbff !important;
}

.catalog-tree__link,
.catalog-tree__label {
    min-height: 34px !important;
    border-radius: 9px !important;
    padding: 0 10px !important;
    font-size: 13px !important;
}

.catalog-tree__children {
    margin-left: 16px !important;
    padding-left: 10px !important;
    border-left: 1px solid #e8eef6;
}

.catalog-tree__link.is-active {
    background: #eef5ff !important;
    border-color: #9fc0ff !important;
    color: #1d4ed8 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .8);
}

.catalog-tree__link em,
.catalog-tree__label em {
    color: #94a3b8 !important;
    font-size: 12px !important;
}

.grade-picker {
    position: relative !important;
    z-index: 9100 !important;
    overflow: visible !important;
}

.grade-picker__panel {
    z-index: 9200 !important;
    max-width: calc(100vw - 34px) !important;
}

.catalog-version-picker {
    position: relative !important;
    z-index: 9300 !important;
    border-bottom: 1px solid #edf2f7 !important;
    background: #fff !important;
}

.catalog-version-picker .grade-picker__trigger {
    min-height: 46px !important;
    padding: 0 16px !important;
    background: #fff !important;
    color: #1e293b !important;
    font-size: 13.5px !important;
}

.catalog-version-picker .grade-picker__trigger::before {
    display: none !important;
}

.catalog-version-picker .grade-picker__panel {
    width: min(560px, calc(100vw - 34px)) !important;
    max-height: 420px !important;
    overflow: auto !important;
    padding: 14px 16px 16px !important;
    border-radius: 0 0 12px 12px !important;
}

.catalog-version-picker .grade-picker__options {
    gap: 6px 8px !important;
}

.catalog-version-picker .grade-picker__options a {
    min-height: 30px !important;
    border-radius: 6px !important;
    padding: 3px 9px !important;
    font-size: 13px !important;
}

@media (max-width: 1180px) {
    .selection-shell {
        grid-template-columns: 1fr;
    }

    .selection-sidebar {
        position: relative !important;
        top: 0;
    }
}

@media (max-width: 860px) {
    .workflow-subject-nav {
        flex: 1 1 auto;
    }

    .workflow-subject-nav__panel {
        width: min(100vw - 24px, 360px) !important;
    }

    .active-filter-bar {
        grid-template-columns: 1fr;
    }

    .filter-row {
        grid-template-columns: 1fr !important;
        gap: 8px !important;
    }
}

.pay-layout {
    max-width: 880px;
    margin: 0 auto;
}

.pay-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 28px;
}

.pay-card__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}

.pay-card__head h1 {
    margin: 0 0 6px;
    font-size: 28px;
    line-height: 1.2;
}

.pay-card__head p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.pay-grid {
    display: grid;
    grid-template-columns: minmax(320px, 360px) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

.pay-qr-panel,
.pay-meta {
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface-soft);
}

.pay-qr-panel {
    min-height: 360px;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 12px;
    padding: 24px;
}

.pay-qrcode {
    width: 240px;
    height: 240px;
    display: grid;
    place-items: center;
    background: #fff;
    border-radius: 12px;
    padding: 10px;
    box-shadow: inset 0 0 0 1px rgba(15, 23, 42, .06);
}

.pay-qrcode img,
.pay-qrcode canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

.pay-qrcode__hint,
.pay-tip {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.pay-meta {
    display: grid;
    gap: 0;
    overflow: hidden;
}

.pay-meta div {
    display: grid;
    gap: 4px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
}

.pay-meta div:last-child {
    border-bottom: 0;
}

.pay-meta span {
    color: var(--muted);
    font-size: 13px;
}

.pay-meta b {
    color: var(--text);
    font-size: 18px;
}

.pay-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.pay-success {
    display: grid;
    gap: 8px;
    text-align: center;
}

.pay-success b {
    color: var(--success);
    font-size: 28px;
}

@media (max-width: 860px) {
    .pay-grid {
        grid-template-columns: 1fr;
    }
}

.btn-danger {
    background: #fff1f2;
    border-color: #fecdd3;
    color: #be123c;
}

.btn-danger:hover {
    background: #ffe4e6;
    border-color: #fda4af;
}

.member-side-note {
    margin: 10px 0 0;
    padding: 10px 12px;
    border-radius: 8px;
    background: #f8fafc;
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 13px;
}

.member-summary--subaccounts {
    margin-top: 14px;
}

.membership-plan__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 14px 0 8px;
}

.membership-plan__meta span {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: #f8fafc;
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.subaccount-panel {
    display: grid;
    gap: 16px;
}

.subaccount-form {
    display: grid;
    gap: 16px;
}

.subaccount-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.subaccount-grid label {
    display: grid;
    gap: 8px;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
}

.subaccount-list {
    display: grid;
    gap: 16px;
}

.subaccount-item {
    display: grid;
    gap: 16px;
    padding: 18px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--line);
}

.subaccount-item__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.subaccount-item__head h3 {
    margin: 0 0 4px;
    font-size: 18px;
}

.subaccount-item__head p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.form-actions--spread {
    justify-content: flex-start;
}

@media (max-width: 860px) {
    .subaccount-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .subaccount-grid {
        grid-template-columns: 1fr;
    }

    .subaccount-item__head {
        flex-direction: column;
    }
}

/* Member center final guard 2026-06-24 */
.member-center {
    grid-template-columns: 282px minmax(0, 1fr) !important;
    align-items: start !important;
}

.member-profile {
    text-align: left !important;
    gap: 16px !important;
}

.member-card-head {
    display: grid !important;
    grid-template-columns: 58px minmax(0, 1fr) !important;
    gap: 12px !important;
    align-items: center !important;
}

.member-card-head .member-avatar {
    width: 58px !important;
    height: 58px !important;
    margin: 0 !important;
    border-radius: 16px !important;
}

.member-side-nav,
.member-timeline {
    display: grid !important;
}

.member-side-nav a {
    min-height: 44px !important;
    display: grid !important;
    grid-template-columns: 22px minmax(0, 1fr) !important;
    gap: 10px !important;
    align-items: center !important;
    padding: 8px 10px !important;
    border-radius: 8px !important;
}

.member-side-nav a.is-active {
    background: var(--primary-soft) !important;
    color: var(--primary-dark) !important;
}

.member-auth-tabs,
.sms-code-row,
.role-options,
.member-form-grid,
.member-feature-grid,
.member-placeholder-grid,
.member-paper-grid {
    display: grid !important;
}

.member-auth-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
}

.sms-code-row {
    grid-template-columns: minmax(0, 1fr) 116px !important;
}

.role-options {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
}

.member-form-grid,
.member-paper-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
}

.member-feature-grid,
.member-placeholder-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
}

.member-home-hero {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
}

.member-paper-grid article,
.member-placeholder-grid article,
.member-feature-grid article {
    border-radius: 8px !important;
}

@media (max-width: 980px) {
    .member-center,
    .member-side-nav {
        grid-template-columns: 1fr !important;
    }

    .member-feature-grid,
    .member-placeholder-grid,
    .member-paper-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }
}

@media (max-width: 620px) {
    .sms-code-row,
    .role-options,
    .member-form-grid,
    .member-feature-grid,
    .member-placeholder-grid,
    .member-paper-grid {
        grid-template-columns: 1fr !important;
    }

    .member-home-hero {
        align-items: stretch !important;
        flex-direction: column !important;
    }
}

/* Member center completion 2026-06-24 */
.member-alert {
    margin-bottom: 14px;
    padding: 12px 14px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #fff;
    font-size: 13px;
    font-weight: 600;
}

.member-alert--success {
    border-color: #bbf7d0;
    background: #f0fdf4;
    color: #166534;
}

.member-alert--danger,
.form-error {
    border-color: #fecaca;
    background: #fef2f2;
    color: #991b1b;
}

.form-error {
    margin-top: -8px;
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 12.5px;
}

.member-auth-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    padding: 5px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-soft);
}

.member-auth-tabs button {
    min-height: 38px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--muted);
    font-weight: 700;
}

.member-auth-tabs button.is-active {
    background: #fff;
    color: var(--primary);
    box-shadow: var(--shadow-xs);
}

.sms-code-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 116px;
    gap: 8px;
}

.sms-code-row .btn {
    min-height: 42px;
    padding-inline: 10px;
}

.role-options {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin: 0;
    padding: 0;
    border: 0;
}

.role-options legend {
    grid-column: 1 / -1;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.role-options label {
    display: block !important;
}

.role-options input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.role-options span {
    min-height: 42px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    font-weight: 700;
}

.role-options input:checked + span {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.member-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.member-center {
    grid-template-columns: 282px minmax(0, 1fr) !important;
    align-items: start;
}

.member-profile {
    text-align: left !important;
    gap: 16px !important;
}

.member-card-head {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
}

.member-card-head .member-avatar {
    width: 58px;
    height: 58px;
    margin: 0;
    border-radius: 16px;
    font-size: 22px;
}

.member-card-head h1 {
    margin: 0 0 4px;
    overflow-wrap: anywhere;
}

.member-card-head p {
    margin: 0;
    overflow-wrap: anywhere;
}

.member-side-nav {
    display: grid;
    gap: 12px;
}

.member-side-nav > div {
    display: grid;
    gap: 4px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
}

.member-side-nav > div:first-child {
    padding-top: 0;
    border-top: 0;
}

.member-side-nav a {
    min-height: 44px;
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    padding: 8px 10px;
    border-radius: 8px;
    color: var(--muted);
    font-weight: 700;
}

.member-side-nav a b {
    display: grid;
    place-items: center;
    color: #9aa7b8;
}

.member-side-nav a:hover,
.member-side-nav a.is-active {
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.member-side-nav a:hover b,
.member-side-nav a.is-active b {
    color: var(--primary);
}

.member-home-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: linear-gradient(115deg, #fff 0%, #f7fbff 66%, #fff7ed 100%);
    box-shadow: var(--shadow-xs);
}

.member-home-hero span {
    color: var(--primary);
    font-size: 13px;
    font-weight: 800;
}

.member-home-hero h1 {
    margin: 4px 0;
    color: var(--text-strong);
    font-size: 24px;
    line-height: 1.25;
}

.member-home-hero p {
    margin: 0;
    color: var(--muted);
}

.member-feature-grid,
.member-placeholder-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.member-feature-grid article,
.member-placeholder-grid article,
.member-paper-grid article {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    padding: 18px;
    box-shadow: var(--shadow-xs);
}

.member-feature-grid b {
    display: block;
    color: var(--primary);
    font-size: 24px;
    line-height: 1.15;
}

.member-feature-grid span,
.member-placeholder-grid span {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 13px;
}

.member-timeline {
    display: grid;
    gap: 10px;
}

.member-timeline > div:not(.empty-state) {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr) 132px;
    gap: 12px;
    align-items: center;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-soft);
}

.member-timeline b {
    color: var(--primary);
}

.member-timeline span,
.member-timeline time {
    color: var(--muted);
    font-size: 13px;
}

.member-paper-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.member-paper-grid h2 {
    margin: 0 0 8px;
    color: var(--text-strong);
    font-size: 17px;
    line-height: 1.4;
}

.member-paper-grid p {
    margin: 0 0 14px;
    color: var(--muted);
    font-size: 13px;
}

.member-paper-grid article > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.member-paper-grid span {
    color: var(--subtle);
    font-size: 12.5px;
}

.member-settings-form {
    display: grid;
    gap: 16px;
}

.member-settings-form label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.member-settings-form .btn {
    justify-self: start;
}

@media (max-width: 980px) {
    .member-center {
        grid-template-columns: 1fr !important;
    }

    .member-profile {
        position: static !important;
    }

    .member-side-nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .member-side-nav > div {
        border-top: 0;
        padding-top: 0;
    }

    .member-feature-grid,
    .member-placeholder-grid,
    .member-paper-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 620px) {
    .sms-code-row,
    .member-form-grid,
    .role-options,
    .member-side-nav,
    .member-feature-grid,
    .member-placeholder-grid,
    .member-paper-grid {
        grid-template-columns: 1fr;
    }

    .member-home-hero,
    .member-paper-grid article > div {
        align-items: stretch;
        flex-direction: column;
    }

    .member-timeline > div:not(.empty-state) {
        grid-template-columns: 1fr;
    }
}

/* ---- Production home polish ---- */
.home-production {
    display: grid;
    gap: 18px;
}

.home-hero-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 18px;
    align-items: stretch;
    min-height: 330px;
    padding: clamp(24px, 4vw, 42px);
    border: 1px solid #d6e1ec;
    border-radius: 12px;
    background:
        linear-gradient(110deg, rgba(255, 255, 255, .96) 0%, rgba(255, 255, 255, .9) 56%, rgba(236, 246, 242, .92) 100%),
        url("https://images.unsplash.com/photo-1497633762265-9d179a990aa6?auto=format&fit=crop&w=1600&q=80") center/cover;
    box-shadow: 0 18px 42px rgba(25, 45, 73, .1);
    overflow: hidden;
}

.home-hero-copy {
    display: grid;
    align-content: center;
    gap: 16px;
    max-width: 760px;
}

.home-kicker {
    width: fit-content;
    min-height: 30px;
    display: inline-flex;
    align-items: center;
    border: 1px solid #bfd8d3;
    border-radius: 999px;
    background: rgba(255, 255, 255, .86);
    color: var(--primary-dark);
    padding: 4px 12px;
    font-size: 13px;
    font-weight: 800;
}

.home-hero-copy h1 {
    margin: 0;
    color: #112437;
    font-size: clamp(34px, 5vw, 54px);
    line-height: 1.08;
    font-weight: 800;
}

.home-hero-copy p {
    margin: 0;
    max-width: 650px;
    color: #4f6176;
    font-size: 17px;
    line-height: 1.75;
}

.home-search-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    max-width: 720px;
    padding: 8px;
    border: 1px solid #d9e5ee;
    border-radius: 12px;
    background: rgba(255, 255, 255, .94);
    box-shadow: 0 10px 26px rgba(29, 47, 73, .08);
}

.home-search-panel input {
    min-height: 48px;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.home-search-panel button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 0;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    padding: 0 20px;
    font-weight: 800;
}

.home-search-panel .icon {
    width: 17px;
    height: 17px;
}

.home-quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.home-quick-links a {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    border: 1px solid #d6e1ec;
    border-radius: 999px;
    background: rgba(255, 255, 255, .78);
    color: #314257;
    padding: 4px 13px;
    font-size: 14px;
    font-weight: 700;
}

.home-quick-links a:hover,
.home-subject-list a:hover,
.home-workflow-grid a:hover,
.scenario-cards--product a:hover {
    border-color: #8bbab2;
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.home-member-panel {
    align-self: center;
    display: grid;
    gap: 12px;
    border: 1px solid #d6e1ec;
    border-radius: 12px;
    background: rgba(255, 255, 255, .92);
    padding: 22px;
    box-shadow: 0 12px 28px rgba(30, 48, 70, .08);
}

.home-member-panel span {
    color: var(--subtle);
    font-size: 13px;
    font-weight: 700;
}

.home-member-panel b {
    color: #12243a;
    font-size: 20px;
    line-height: 1.35;
}

.home-member-panel p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.home-member-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.home-subject-board,
.home-workflow-grid a,
.home-stat-strip,
.home-scenario-section,
.home-type-panel--product {
    border: 1px solid #dce5ee;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(35, 54, 84, .06);
}

.home-subject-board {
    padding: 20px;
}

.home-board-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.home-board-head h2,
.home-scenario-section h2 {
    margin: 0 0 4px;
    color: #16243a;
    font-size: 22px;
}

.home-board-head p {
    margin: 0;
    color: var(--muted);
}

.home-stage-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.home-stage-card {
    display: grid;
    gap: 14px;
    border: 1px solid #e0e8f0;
    border-radius: 10px;
    background: #fbfdff;
    padding: 16px;
}

.home-stage-card.is-active {
    border-color: #9fc9c1;
    background: #f1faf7;
}

.home-stage-card > div:first-child {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}

.home-stage-card b {
    color: #17263d;
    font-size: 18px;
}

.home-stage-card span {
    color: var(--subtle);
    font-size: 13px;
}

.home-subject-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.home-subject-list a {
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    border: 1px solid #dde6ef;
    border-radius: 8px;
    background: #fff;
    color: #38506a;
    padding: 4px 10px;
    font-size: 13px;
    font-weight: 700;
}

.home-subject-list a.is-active {
    border-color: var(--primary);
    background: var(--primary);
    color: #fff;
}

.home-workflow-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.home-workflow-grid a {
    display: grid;
    align-content: start;
    gap: 9px;
    min-height: 150px;
    padding: 18px;
}

.home-workflow-grid i {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: #edf7f4;
    color: var(--primary-dark);
    font-style: normal;
}

.home-workflow-grid .icon {
    width: 20px;
    height: 20px;
}

.home-workflow-grid b {
    color: #16243a;
    font-size: 18px;
}

.home-workflow-grid span {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
}

.home-stat-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: hidden;
}

.home-stat-strip div {
    display: grid;
    gap: 2px;
    padding: 18px 20px;
    border-right: 1px solid #e3ebf2;
}

.home-stat-strip div:last-child {
    border-right: 0;
}

.home-stat-strip b {
    color: var(--primary-dark);
    font-size: 28px;
    line-height: 1.1;
}

.home-stat-strip span {
    color: var(--muted);
    font-size: 13px;
}

.home-scenario-section,
.home-content-grid--product,
.home-type-panel--product {
    margin-top: 18px;
    padding: 20px;
}

.home-content-grid--product {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 18px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.home-content-grid--product .table-panel,
.home-type-panel--product {
    border-radius: 12px;
}

.scenario-cards--product {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.scenario-cards--product a {
    border-radius: 10px;
    background: #fbfdff;
}

.home-type-panel--product .type-stat-grid a {
    border-radius: 10px;
}

@media (max-width: 1120px) {
    .home-hero-panel,
    .home-content-grid--product {
        grid-template-columns: 1fr;
    }

    .home-workflow-grid,
    .home-stat-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .home-stage-grid,
    .scenario-cards--product {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .home-hero-panel {
        min-height: 0;
        padding: 20px;
    }

    .home-search-panel,
    .home-member-actions,
    .home-stage-grid,
    .home-workflow-grid,
    .home-stat-strip,
    .scenario-cards--product {
        grid-template-columns: 1fr;
    }

    .home-stat-strip div {
        border-right: 0;
        border-bottom: 1px solid #e3ebf2;
    }

    .home-stat-strip div:last-child {
        border-bottom: 0;
    }
}

/* Final override: compact XKW-style filter bar */
.selection-main .filter-panel--bar .filter-row {
    min-height: 42px !important;
    padding: 8px 18px !important;
    grid-template-columns: 72px minmax(0, 1fr) !important;
    gap: 10px !important;
}

.selection-main .filter-panel--bar .filter-grid {
    display: flex !important;
    grid-template-columns: none !important;
    flex-wrap: wrap;
    align-items: center;
    gap: 5px 8px !important;
}

.selection-main .filter-panel--bar .filter-grid__item {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: auto !important;
    min-width: 0 !important;
    min-height: 28px !important;
    padding: 0 9px !important;
    border: 1px solid transparent !important;
    border-radius: 6px !important;
    background: transparent !important;
    color: #334155 !important;
    line-height: 28px !important;
    white-space: nowrap;
    box-shadow: none !important;
}

.selection-main .filter-panel--bar a.filter-grid__item:hover {
    border-color: #bfd4f6 !important;
    background: #f6f9ff !important;
    color: #1d4ed8 !important;
}

.selection-main .filter-panel--bar .filter-grid__item.is-active {
    border-color: #9fc2ff !important;
    background: #eaf3ff !important;
    color: #1456b8 !important;
    font-weight: 700 !important;
}

.selection-main .filter-panel--bar .filter-grid__item--readonly {
    color: #475569 !important;
}

.selection-main .filter-panel--bar .filter-grid__item--all {
    min-width: 42px !important;
}

.selection-main .filter-panel--bar .more-filter {
    margin: 0 !important;
    padding: 0 !important;
    border-top: 1px solid #f1f5f9 !important;
}

.selection-main .filter-panel--bar .more-filter summary {
    display: flex !important;
    align-items: center !important;
    min-height: 36px !important;
    padding: 0 18px 0 100px !important;
    list-style: none !important;
    border-bottom: 1px solid #f6f8fb !important;
    color: #475569 !important;
    font-size: 13px !important;
    font-weight: 600 !important;
}

.selection-main .filter-panel--bar .more-filter summary::-webkit-details-marker {
    display: none !important;
}

.selection-main .filter-panel--bar .more-filter summary::before {
    content: "" !important;
    width: 6px !important;
    height: 6px !important;
    margin-right: 8px !important;
    border-right: 1.5px solid #64748b !important;
    border-bottom: 1.5px solid #64748b !important;
    transform: rotate(45deg) translateY(-1px) !important;
}

.selection-main .filter-panel--bar .more-filter[open] summary::before {
    transform: rotate(225deg) translate(-1px, -1px) !important;
}

.selection-main .filter-panel--bar .more-filter__body .filter-row:first-child {
    border-top: 0 !important;
}

@media (max-width: 860px) {
    .selection-main .filter-panel--bar .filter-row {
        grid-template-columns: 1fr !important;
    }

    .selection-main .filter-panel--bar .more-filter summary {
        padding-left: 18px !important;
    }
}

/* Final override: compact XKW-style filter bar */
.selection-main .filter-panel--bar .filter-row {
    min-height: 42px !important;
    padding: 8px 18px !important;
    grid-template-columns: 72px minmax(0, 1fr) !important;
    gap: 10px !important;
}

.selection-main .filter-panel--bar .filter-grid {
    display: flex !important;
    grid-template-columns: none !important;
    flex-wrap: wrap;
    align-items: center;
    gap: 5px 8px !important;
}

.selection-main .filter-panel--bar .filter-grid__item {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: auto !important;
    min-width: 0 !important;
    min-height: 28px !important;
    padding: 0 9px !important;
    border: 1px solid transparent !important;
    border-radius: 6px !important;
    background: transparent !important;
    color: #334155 !important;
    line-height: 28px !important;
    white-space: nowrap;
    box-shadow: none !important;
}

.selection-main .filter-panel--bar a.filter-grid__item:hover {
    border-color: #bfd4f6 !important;
    background: #f6f9ff !important;
    color: #1d4ed8 !important;
}

.selection-main .filter-panel--bar .filter-grid__item.is-active {
    border-color: #9fc2ff !important;
    background: #eaf3ff !important;
    color: #1456b8 !important;
    font-weight: 700 !important;
}

.selection-main .filter-panel--bar .filter-grid__item--readonly {
    color: #475569 !important;
}

.selection-main .filter-panel--bar .filter-grid__item--all {
    min-width: 42px !important;
}

.selection-main .filter-panel--bar .more-filter {
    margin: 0 !important;
    padding: 0 !important;
    border-top: 1px solid #f1f5f9 !important;
}

.selection-main .filter-panel--bar .more-filter summary {
    display: flex !important;
    align-items: center !important;
    min-height: 36px !important;
    padding: 0 18px 0 100px !important;
    list-style: none !important;
    border-bottom: 1px solid #f6f8fb !important;
    color: #475569 !important;
    font-size: 13px !important;
    font-weight: 600 !important;
}

.selection-main .filter-panel--bar .more-filter summary::-webkit-details-marker {
    display: none !important;
}

.selection-main .filter-panel--bar .more-filter summary::before {
    content: "" !important;
    width: 6px !important;
    height: 6px !important;
    margin-right: 8px !important;
    border-right: 1.5px solid #64748b !important;
    border-bottom: 1.5px solid #64748b !important;
    transform: rotate(45deg) translateY(-1px) !important;
}

.selection-main .filter-panel--bar .more-filter[open] summary::before {
    transform: rotate(225deg) translate(-1px, -1px) !important;
}

.selection-main .filter-panel--bar .more-filter__body .filter-row:first-child {
    border-top: 0 !important;
}

@media (max-width: 860px) {
    .selection-main .filter-panel--bar .filter-row {
        grid-template-columns: 1fr !important;
    }

    .selection-main .filter-panel--bar .more-filter summary {
        padding-left: 18px !important;
    }
}

/* XKW-style dense filter rows */
.filter-panel--bar .filter-row {
    min-height: 44px;
}

.filter-panel--bar .filter-grid {
    display: flex !important;
    grid-template-columns: none !important;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px 8px !important;
}

.filter-panel--bar .filter-grid__item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto !important;
    min-width: 0;
    min-height: 28px !important;
    padding: 0 9px !important;
    border: 1px solid transparent !important;
    border-radius: 6px !important;
    background: transparent !important;
    color: #334155 !important;
    line-height: 28px;
    white-space: nowrap;
}

.filter-panel--bar a.filter-grid__item:hover {
    border-color: #bfd4f6 !important;
    background: #f6f9ff !important;
    color: #1d4ed8 !important;
}

.filter-panel--bar .filter-grid__item.is-active {
    border-color: #9fc2ff !important;
    background: #eaf3ff !important;
    color: #1456b8 !important;
    font-weight: 700;
}

.filter-panel--bar .filter-grid__item--readonly {
    color: #475569 !important;
}

.filter-panel--bar .filter-grid__item--all {
    min-width: 42px;
}

.more-filter {
    margin: 0 !important;
    padding: 0 !important;
    border-top: 1px solid #f1f5f9 !important;
}

.more-filter summary {
    display: flex;
    align-items: center;
    min-height: 38px;
    padding: 0 20px 0 104px;
    list-style: none;
    border-bottom: 1px solid #f6f8fb;
    color: #475569 !important;
    font-size: 13px !important;
}

.more-filter summary::-webkit-details-marker {
    display: none;
}

.more-filter summary::before {
    content: "";
    width: 6px;
    height: 6px;
    margin-right: 8px;
    border-right: 1.5px solid #64748b;
    border-bottom: 1.5px solid #64748b;
    transform: rotate(45deg) translateY(-1px);
}

.more-filter[open] summary::before {
    transform: rotate(225deg) translate(-1px, -1px);
}

.more-filter__body .filter-row:first-child {
    border-top: 0 !important;
}

@media (max-width: 860px) {
    .more-filter summary {
        padding-left: 20px;
    }
}

/* ponytail: final compact override for the question filter panel */
.selection-main .filter-panel--bar form {
    gap: 0 !important;
}

.selection-main .filter-title {
    padding: 13px 18px !important;
}

.selection-main .filter-row {
    grid-template-columns: 66px minmax(0, 1fr) !important;
    gap: 10px !important;
    padding: 7px 18px !important;
}

.selection-main .filter-row__label {
    padding-top: 4px !important;
}

.selection-main .filter-chips {
    gap: 6px !important;
}

.selection-main .filter-panel .filter-chip,
.selection-main .filter-panel--bar .filter-chip,
.selection-main .paper-filter .filter-chip,
.selection-main .filter-chip {
    min-height: 28px !important;
    padding: 0 10px !important;
    border-radius: 999px !important;
}

.selection-main .filter-grid {
    gap: 6px !important;
}

.selection-main .filter-grid__item {
    min-height: 30px !important;
    padding: 5px 9px !important;
    border-radius: 8px !important;
}

.selection-main .filter-search {
    gap: 10px !important;
    padding: 10px 18px 13px !important;
}

.selection-main .active-filter-bar {
    gap: 10px !important;
    padding: 10px 16px !important;
}

.selection-main .active-filter-bar > span {
    padding-top: 2px !important;
}

.selection-main .active-filter-bar > div {
    gap: 6px !important;
}

.selection-main .active-filter-bar a {
    min-height: 28px !important;
    padding: 0 11px !important;
}

.selection-main .result-toolbar {
    padding: 12px 16px !important;
}
/* FINAL PLATFORM FILTER/NAV NORMALIZATION 2026-06-22 EOF */
.portal-header,
.workflow-nav,
.workflow-nav__inner,
.workflow-subject-nav,
.workflow-subject-nav__panel {
    overflow: visible !important;
}

.workflow-nav {
    position: relative;
    z-index: 12000;
}

.workflow-nav__inner {
    position: relative;
    z-index: 12001;
}

.workflow-subject-nav {
    position: relative !important;
    z-index: 12100 !important;
    flex: 0 0 198px;
}

.workflow-subject-nav__button {
    cursor: pointer;
}

.workflow-subject-nav__panel {
    width: 420px !important;
    top: calc(100% - 1px) !important;
    left: 0 !important;
    z-index: 12200 !important;
    box-shadow: 0 22px 44px rgba(15, 23, 42, .16) !important;
}

.selection-shell {
    display: grid;
    grid-template-columns: 286px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    position: relative !important;
    overflow: visible !important;
}

.selection-sidebar {
    top: 16px;
    position: sticky !important;
    z-index: 9000 !important;
    overflow: visible !important;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06);
}

.selection-main {
    display: grid;
    gap: 14px;
    position: relative;
    z-index: 1;
}

.tree-panel--catalog,
.filter-panel--bar,
.active-filter-bar,
.result-toolbar {
    border-radius: 14px !important;
    background: #fff !important;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06) !important;
    border: 1px solid #e8eef6 !important;
}

.filter-panel,
.filter-panel--bar,
.result-toolbar,
.question-list {
    position: relative;
    z-index: 1;
}

.filter-panel--bar {
    overflow: visible !important;
}

.filter-panel--bar form {
    display: grid;
    gap: 0;
}

.filter-title {
    padding: 14px 18px !important;
    border-bottom: 1px solid #edf2f7 !important;
}

.filter-title b {
    font-size: 18px;
    color: #1e293b;
}

.filter-context {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px 10px;
    padding: 10px 18px 2px;
}

.filter-context__item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 26px;
    padding: 0 9px;
    border-radius: 999px;
    background: #f8fbff;
    color: #64748b;
    font-size: 12.5px;
}

.filter-context__item b {
    color: #1e3a8a;
    font-weight: 700;
}

.filter-context__link {
    margin-left: auto;
    color: #2563eb;
    font-size: 13px;
    font-weight: 600;
}

.filter-row {
    grid-template-columns: 68px minmax(0, 1fr) !important;
    gap: 10px !important;
    padding: 7px 18px !important;
    border-top: 1px solid #f1f5f9;
}

.filter-row--stacked {
    align-items: start;
}

.filter-row__label {
    padding-top: 5px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.filter-row__label small {
    color: #94a3b8;
    font-size: 12px;
    font-weight: 500;
}

.filter-grid {
    grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)) !important;
    gap: 6px !important;
}

.filter-grid__item {
    justify-content: flex-start;
    min-height: 30px !important;
    padding: 5px 9px !important;
    border-radius: 8px !important;
    font-size: 12.5px !important;
}

.filter-grid__item.is-active {
    border-color: #8fb8ff !important;
    background: #eef5ff !important;
    color: #1d4ed8 !important;
}

.more-filter {
    margin: 4px 18px 0;
    border-top: 1px dashed #e2e8f0;
    padding-top: 8px;
}

.more-filter summary {
    cursor: pointer;
    color: #334155;
    font-size: 13px;
    font-weight: 600;
}

.filter-search {
    align-items: center;
    gap: 10px;
    padding: 11px 18px 14px !important;
    border-top: 1px solid #edf2f7;
}

.active-filter-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    align-items: start;
    padding: 10px 16px !important;
}

.active-filter-bar > span {
    padding-top: 2px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.active-filter-bar > div {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.active-filter-bar a {
    min-height: 28px;
    padding: 0 11px;
    border-radius: 999px;
    background: #f3f7ff;
    color: #2b4da1;
    font-size: 12.5px;
}

.active-filter-bar .active-filter-clear {
    background: transparent;
    color: #64748b;
}

.result-toolbar {
    padding: 12px 16px !important;
}

.tree-panel__title {
    padding: 15px 16px 10px !important;
    border-bottom: 1px solid #edf2f7;
}

.tree-panel__title b {
    font-size: 15px;
    color: #1e293b;
}

.directory-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto !important;
    gap: 10px !important;
    padding: 12px 16px !important;
    border-bottom: 1px solid #f1f5f9;
}

.directory-tools input {
    height: 34px;
    border-radius: 9px;
    border: 1px solid #dbe5f1;
    background: #fbfdff;
}

.directory-tools .link-tool {
    min-height: 32px;
    padding: 0 10px;
    border-radius: 8px;
    background: #f8fbff;
    color: #475569;
}

.tree-list--catalog {
    max-height: calc(100vh - 300px);
    padding: 8px 12px 14px !important;
}

.catalog-tree + .catalog-tree {
    margin-top: 2px;
}

.catalog-tree__summary {
    min-height: 34px;
    padding: 0 6px !important;
    border-radius: 9px;
}

.catalog-tree__summary:hover {
    background: #f8fbff !important;
}

.catalog-tree__link,
.catalog-tree__label {
    min-height: 34px !important;
    border-radius: 9px !important;
    padding: 0 10px !important;
    font-size: 13px !important;
}

.catalog-tree__children {
    margin-left: 16px !important;
    padding-left: 10px !important;
    border-left: 1px solid #e8eef6;
}

.catalog-tree__link.is-active {
    background: #eef5ff !important;
    border-color: #9fc0ff !important;
    color: #1d4ed8 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .8);
}

.catalog-tree__link em,
.catalog-tree__label em {
    color: #94a3b8 !important;
    font-size: 12px !important;
}

.grade-picker {
    position: relative !important;
    z-index: 9100 !important;
    overflow: visible !important;
}

.grade-picker__panel {
    z-index: 9200 !important;
    max-width: calc(100vw - 34px) !important;
}

@media (max-width: 1180px) {
    .selection-shell {
        grid-template-columns: 1fr;
    }

    .selection-sidebar {
        position: relative !important;
        top: 0;
    }
}

@media (max-width: 860px) {
    .workflow-subject-nav {
        flex: 1 1 auto;
    }

    .workflow-subject-nav__panel {
        width: min(100vw - 24px, 360px) !important;
    }

    .active-filter-bar {
        grid-template-columns: 1fr;
    }

    .filter-row {
        grid-template-columns: 1fr !important;
        gap: 8px !important;
    }
}

/* FINAL PLATFORM FILTER/NAV NORMALIZATION 2026-06-22 EOF */
.portal-header,
.workflow-nav,
.workflow-nav__inner,
.workflow-subject-nav,
.workflow-subject-nav__panel {
    overflow: visible !important;
}

.workflow-nav {
    position: relative;
    z-index: 9400;
}

.workflow-nav__inner {
    position: relative;
    z-index: 9401;
}

.workflow-subject-nav {
    position: relative !important;
    z-index: 9500 !important;
    flex: 0 0 198px;
}

.workflow-subject-nav__button {
    cursor: pointer;
}

.workflow-subject-nav__panel {
    width: 420px !important;
    top: calc(100% - 1px) !important;
    left: 0 !important;
    box-shadow: 0 22px 44px rgba(15, 23, 42, .16) !important;
}

.selection-shell {
    display: grid;
    grid-template-columns: 286px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    position: relative !important;
    overflow: visible !important;
}

.selection-sidebar {
    top: 16px;
    position: sticky !important;
    z-index: 9000 !important;
    overflow: visible !important;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06);
}

.selection-main {
    display: grid;
    gap: 14px;
    position: relative;
    z-index: 1;
}

.tree-panel--catalog,
.filter-panel--bar,
.active-filter-bar,
.result-toolbar {
    border-radius: 14px !important;
    background: #fff !important;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06) !important;
    border: 1px solid #e8eef6 !important;
}

.filter-panel,
.filter-panel--bar,
.result-toolbar,
.question-list {
    position: relative;
    z-index: 1;
}

.filter-panel--bar {
    overflow: visible !important;
}

.filter-panel--bar form {
    display: grid;
    gap: 0;
}

.filter-title {
    padding: 16px 20px !important;
    border-bottom: 1px solid #edf2f7 !important;
}

.filter-title b {
    font-size: 18px;
    color: #1e293b;
}

.filter-context {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 12px;
    padding: 12px 20px 4px;
}

.filter-context__item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: #f8fbff;
    color: #64748b;
    font-size: 12.5px;
}

.filter-context__item b {
    color: #1e3a8a;
    font-weight: 700;
}

.filter-context__link {
    margin-left: auto;
    color: #2563eb;
    font-size: 13px;
    font-weight: 600;
}

.filter-row {
    grid-template-columns: 72px minmax(0, 1fr) !important;
    gap: 12px !important;
    padding: 10px 20px !important;
    border-top: 1px solid #f1f5f9;
}

.filter-row--stacked {
    align-items: start;
}

.filter-row__label {
    padding-top: 7px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.filter-row__label small {
    color: #94a3b8;
    font-size: 12px;
    font-weight: 500;
}

.filter-grid {
    grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)) !important;
    gap: 8px !important;
}

.filter-grid__item {
    justify-content: flex-start;
    min-height: 32px !important;
    padding: 6px 10px !important;
    border-radius: 9px !important;
    font-size: 12.5px !important;
}

.filter-grid__item.is-active {
    border-color: #8fb8ff !important;
    background: #eef5ff !important;
    color: #1d4ed8 !important;
}

.more-filter {
    margin: 6px 20px 0;
    border-top: 1px dashed #e2e8f0;
    padding-top: 10px;
}

.more-filter summary {
    cursor: pointer;
    color: #334155;
    font-size: 13px;
    font-weight: 600;
}

.filter-search {
    align-items: center;
    gap: 12px;
    padding: 14px 20px 18px !important;
    border-top: 1px solid #edf2f7;
}

.active-filter-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    align-items: start;
    padding: 14px 18px !important;
}

.active-filter-bar > span {
    padding-top: 4px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.active-filter-bar > div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.active-filter-bar a {
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #f3f7ff;
    color: #2b4da1;
    font-size: 12.5px;
}

.active-filter-bar .active-filter-clear {
    background: transparent;
    color: #64748b;
}

.result-toolbar {
    padding: 14px 18px !important;
}

.tree-panel__title {
    padding: 15px 16px 10px !important;
    border-bottom: 1px solid #edf2f7;
}

.tree-panel__title b {
    font-size: 15px;
    color: #1e293b;
}

.directory-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto !important;
    gap: 10px !important;
    padding: 12px 16px !important;
    border-bottom: 1px solid #f1f5f9;
}

.directory-tools input {
    height: 34px;
    border-radius: 9px;
    border: 1px solid #dbe5f1;
    background: #fbfdff;
}

.directory-tools .link-tool {
    min-height: 32px;
    padding: 0 10px;
    border-radius: 8px;
    background: #f8fbff;
    color: #475569;
}

.tree-list--catalog {
    max-height: calc(100vh - 300px);
    padding: 8px 12px 14px !important;
}

.catalog-tree + .catalog-tree {
    margin-top: 2px;
}

.catalog-tree__summary {
    min-height: 34px;
    padding: 0 6px !important;
    border-radius: 9px;
}

.catalog-tree__summary:hover {
    background: #f8fbff !important;
}

.catalog-tree__link,
.catalog-tree__label {
    min-height: 34px !important;
    border-radius: 9px !important;
    padding: 0 10px !important;
    font-size: 13px !important;
}

.catalog-tree__children {
    margin-left: 16px !important;
    padding-left: 10px !important;
    border-left: 1px solid #e8eef6;
}

.catalog-tree__link.is-active {
    background: #eef5ff !important;
    border-color: #9fc0ff !important;
    color: #1d4ed8 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .8);
}

.catalog-tree__link em,
.catalog-tree__label em {
    color: #94a3b8 !important;
    font-size: 12px !important;
}

.grade-picker {
    position: relative !important;
    z-index: 9100 !important;
    overflow: visible !important;
}

.grade-picker__panel {
    z-index: 9200 !important;
    max-width: calc(100vw - 34px) !important;
}

@media (max-width: 1180px) {
    .selection-shell {
        grid-template-columns: 1fr;
    }

    .selection-sidebar {
        position: relative !important;
        top: 0;
    }
}

@media (max-width: 860px) {
    .workflow-subject-nav {
        flex: 1 1 auto;
    }

    .workflow-subject-nav__panel {
        width: min(100vw - 24px, 360px) !important;
    }

    .active-filter-bar {
        grid-template-columns: 1fr;
    }

    .filter-row {
        grid-template-columns: 1fr !important;
        gap: 8px !important;
    }
}

/* FINAL PLATFORM FILTER/NAV NORMALIZATION 2026-06-22 */
.portal-header,
.workflow-nav,
.workflow-nav__inner,
.workflow-subject-nav,
.workflow-subject-nav__panel {
    overflow: visible !important;
}

.workflow-nav {
    position: relative;
    z-index: 9400;
}

.workflow-nav__inner {
    position: relative;
    z-index: 9401;
}

.workflow-subject-nav {
    position: relative !important;
    z-index: 9500 !important;
    flex: 0 0 198px;
}

.workflow-subject-nav__button {
    cursor: pointer;
}

.workflow-subject-nav__panel {
    width: 420px !important;
    top: calc(100% - 1px) !important;
    left: 0 !important;
    box-shadow: 0 22px 44px rgba(15, 23, 42, .16) !important;
}

.selection-shell {
    display: grid;
    grid-template-columns: 286px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.selection-sidebar {
    top: 16px;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06);
}

.selection-main {
    display: grid;
    gap: 14px;
}

.tree-panel--catalog,
.filter-panel--bar,
.active-filter-bar,
.result-toolbar {
    border-radius: 14px !important;
    background: #fff !important;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06) !important;
    border: 1px solid #e8eef6 !important;
}

.filter-panel--bar {
    overflow: visible !important;
}

.filter-panel--bar form {
    display: grid;
    gap: 0;
}

.filter-title {
    padding: 16px 20px !important;
    border-bottom: 1px solid #edf2f7 !important;
}

.filter-title b {
    font-size: 18px;
    color: #1e293b;
}

.filter-context {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 12px;
    padding: 12px 20px 4px;
}

.filter-context__item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: #f8fbff;
    color: #64748b;
    font-size: 12.5px;
}

.filter-context__item b {
    color: #1e3a8a;
    font-weight: 700;
}

.filter-context__link {
    margin-left: auto;
    color: #2563eb;
    font-size: 13px;
    font-weight: 600;
}

.filter-row {
    grid-template-columns: 72px minmax(0, 1fr) !important;
    gap: 12px !important;
    padding: 10px 20px !important;
    border-top: 1px solid #f1f5f9;
}

.filter-row--stacked {
    align-items: start;
}

.filter-row__label {
    padding-top: 7px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.filter-row__label small {
    color: #94a3b8;
    font-size: 12px;
    font-weight: 500;
}

.filter-grid {
    grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)) !important;
    gap: 8px !important;
}

.filter-grid__item {
    justify-content: flex-start;
    min-height: 32px !important;
    padding: 6px 10px !important;
    border-radius: 9px !important;
    font-size: 12.5px !important;
}

.filter-grid__item.is-active {
    border-color: #8fb8ff !important;
    background: #eef5ff !important;
    color: #1d4ed8 !important;
}

.more-filter {
    margin: 6px 20px 0;
    border-top: 1px dashed #e2e8f0;
    padding-top: 10px;
}

.more-filter summary {
    cursor: pointer;
    color: #334155;
    font-size: 13px;
    font-weight: 600;
}

.filter-search {
    align-items: center;
    gap: 12px;
    padding: 14px 20px 18px !important;
    border-top: 1px solid #edf2f7;
}

.active-filter-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    align-items: start;
    padding: 14px 18px !important;
}

.active-filter-bar > span {
    padding-top: 4px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.active-filter-bar > div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.active-filter-bar a {
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #f3f7ff;
    color: #2b4da1;
    font-size: 12.5px;
}

.active-filter-bar .active-filter-clear {
    background: transparent;
    color: #64748b;
}

.result-toolbar {
    padding: 14px 18px !important;
}

.tree-panel__title {
    padding: 15px 16px 10px !important;
    border-bottom: 1px solid #edf2f7;
}

.tree-panel__title b {
    font-size: 15px;
    color: #1e293b;
}

.directory-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto !important;
    gap: 10px !important;
    padding: 12px 16px !important;
    border-bottom: 1px solid #f1f5f9;
}

.directory-tools input {
    height: 34px;
    border-radius: 9px;
    border: 1px solid #dbe5f1;
    background: #fbfdff;
}

.directory-tools .link-tool {
    min-height: 32px;
    padding: 0 10px;
    border-radius: 8px;
    background: #f8fbff;
    color: #475569;
}

.tree-list--catalog {
    max-height: calc(100vh - 300px);
    padding: 8px 12px 14px !important;
}

.catalog-tree + .catalog-tree {
    margin-top: 2px;
}

.catalog-tree__summary {
    min-height: 34px;
    padding: 0 6px !important;
    border-radius: 9px;
}

.catalog-tree__summary:hover {
    background: #f8fbff !important;
}

.catalog-tree__link,
.catalog-tree__label {
    min-height: 34px !important;
    border-radius: 9px !important;
    padding: 0 10px !important;
    font-size: 13px !important;
}

.catalog-tree__children {
    margin-left: 16px !important;
    padding-left: 10px !important;
    border-left: 1px solid #e8eef6;
}

.catalog-tree__link.is-active {
    background: #eef5ff !important;
    border-color: #9fc0ff !important;
    color: #1d4ed8 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .8);
}

.catalog-tree__link em,
.catalog-tree__label em {
    color: #94a3b8 !important;
    font-size: 12px !important;
}

@media (max-width: 1180px) {
    .selection-shell {
        grid-template-columns: 1fr;
    }

    .selection-sidebar {
        position: relative !important;
        top: 0;
    }
}

@media (max-width: 860px) {
    .workflow-subject-nav {
        flex: 1 1 auto;
    }

    .workflow-subject-nav__panel {
        width: min(100vw - 24px, 360px) !important;
    }

    .active-filter-bar {
        grid-template-columns: 1fr;
    }

    .filter-row {
        grid-template-columns: 1fr !important;
        gap: 8px !important;
    }
}

/* Grade/version picker refinement 2026-06-21 */
.grade-picker {
    position: relative;
    z-index: 30;
    margin: 0;
    background: #fff;
    border-top: 1px solid var(--line-soft, #e5eaf1);
    border-bottom: 1px solid var(--line-soft, #e5eaf1);
}

.grade-picker__trigger {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 0;
    background: #fff;
    color: #1f3f8b;
    padding: 0 16px;
    text-align: left;
    font-size: 13.5px;
    font-weight: 600;
}

.grade-picker__trigger span:first-of-type {
    max-width: 42%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.grade-picker__trigger span:last-of-type {
    flex: 1 1 auto;
    min-width: 0;
    color: #274b8f;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.grade-picker__trigger::before {
    content: "";
    width: 14px;
    height: 14px;
    flex: 0 0 14px;
    background: currentColor;
    -webkit-mask: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 6h16'/%3E%3Cpath d='M4 12h16'/%3E%3Cpath d='M4 18h16'/%3E%3C/svg%3E") center / contain no-repeat;
    mask: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 6h16'/%3E%3Cpath d='M4 12h16'/%3E%3Cpath d='M4 18h16'/%3E%3C/svg%3E") center / contain no-repeat;
}

.grade-picker__trigger i {
    width: 8px;
    height: 8px;
    flex: 0 0 8px;
    border-top: 1px solid #8ca1c7;
    border-right: 1px solid #8ca1c7;
    transform: rotate(45deg);
}

.grade-picker__trigger::after {
    content: "";
    width: 12px;
    height: 12px;
    margin-left: auto;
    background: currentColor;
    -webkit-mask: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.3' stroke-linecap='round' stroke-linejoin='round' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") center / contain no-repeat;
    mask: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.3' stroke-linecap='round' stroke-linejoin='round' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") center / contain no-repeat;
    transition: transform .18s ease;
}

.grade-picker:hover .grade-picker__trigger::after,
.grade-picker:focus-within .grade-picker__trigger::after {
    transform: rotate(180deg);
}

.grade-picker__panel {
    position: absolute;
    left: 0;
    top: calc(100% - 1px);
    width: min(920px, calc(100vw - 36px));
    display: grid;
    gap: 12px;
    padding: 18px 20px;
    border: 1px solid #dce5f0;
    border-top-color: #edf2f7;
    border-radius: 0 0 10px 10px;
    background: #fff;
    box-shadow: 0 18px 46px rgba(19, 39, 70, .14);
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity .16s ease, transform .16s ease;
}

.grade-picker:hover .grade-picker__panel,
.grade-picker:focus-within .grade-picker__panel,
.grade-picker.is-open .grade-picker__panel {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.grade-picker.is-open .grade-picker__trigger::after,
.grade-picker.is-open .grade-picker__trigger i {
    transform: rotate(180deg);
}

.grade-picker__row {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
}

.grade-picker__row b {
    color: #7a8798;
    font-size: 13px;
    font-weight: 500;
    line-height: 32px;
}

.grade-picker__options {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
}

.grade-picker__options a {
    position: relative;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    border-radius: 4px;
    color: #1f2937;
    padding: 3px 8px;
    font-size: 13.5px;
    line-height: 24px;
    transition: background .14s ease, color .14s ease;
}

.grade-picker__options a:hover,
.grade-picker__options a.is-active {
    background: #edf5ff;
    color: #2563eb;
}

.grade-picker__options small {
    position: absolute;
    left: 50%;
    top: -9px;
    transform: translateX(-50%);
    border-radius: 4px 4px 4px 0;
    background: #f04438;
    color: #fff;
    padding: 0 5px;
    font-size: 10px;
    font-weight: 700;
    line-height: 15px;
    white-space: nowrap;
}

.tree-panel__title {
    align-items: center;
}

.catalog-tree__label em {
    display: none;
}

.catalog-tree__link.is-active {
    background-color: #eef6ff !important;
    color: #1554bd !important;
    box-shadow: inset 2px 0 0 #2f6fed !important;
}

.filter-panel .filter-chip.is-active,
.filter-panel--bar .filter-chip.is-active,
.paper-filter .filter-chip.is-active,
.filter-chip.is-active {
    border-color: #abc8ff !important;
    background-color: #eef6ff !important;
    color: #1554bd !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .72) !important;
}

@media (max-width: 860px) {
    .grade-picker__panel {
        position: static;
        width: 100%;
        border-left: 0;
        border-right: 0;
        border-radius: 0;
        box-shadow: none;
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }

    .grade-picker__row {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}

/* Keep grade/version panel above the result area. */
.selection-shell {
    position: relative;
    overflow: visible !important;
}

.selection-sidebar {
    position: sticky;
    z-index: 80;
    overflow: visible !important;
}

.selection-main {
    position: relative;
    z-index: 1;
}

.grade-picker {
    z-index: 120;
}

.grade-picker__panel {
    z-index: 130;
    max-width: calc(100vw - 34px);
}

/* FINAL COMPACT CATALOG + CN PAGINATION 2026-06-21 */
.selection-shell {
    grid-template-columns: 228px minmax(0, 1fr) !important;
    gap: 14px !important;
}

.selection-sidebar {
    max-width: 228px !important;
    border-radius: 12px !important;
}

.sidebar-head {
    min-height: auto !important;
    padding: 10px 12px !important;
    gap: 8px !important;
    border-radius: 12px 12px 0 0 !important;
}

.sidebar-head h1 {
    font-size: 16px !important;
    line-height: 1.25 !important;
}

.sidebar-head p {
    display: none !important;
}

.basket-mini {
    min-height: 28px !important;
    padding: 4px 8px !important;
    border-radius: 999px !important;
    font-size: 12px !important;
    white-space: nowrap !important;
}

.taxonomy-tabs {
    padding: 6px !important;
    gap: 4px !important;
}

.taxonomy-tabs a {
    min-height: 30px !important;
    padding: 5px 8px !important;
    border-radius: 8px !important;
    font-size: 12px !important;
}

.tree-panel {
    border-radius: 0 0 12px 12px !important;
}

.tree-panel__title {
    min-height: 34px !important;
    padding: 7px 10px !important;
    font-size: 12px !important;
}

.tree-panel__title b {
    font-size: 13px !important;
}

.tree-panel__title a {
    padding: 3px 7px !important;
    border-radius: 999px !important;
    font-size: 12px !important;
}

.directory-tools {
    grid-template-columns: 1fr !important;
    gap: 6px !important;
    padding: 8px 10px !important;
}

.directory-tools input {
    min-height: 30px !important;
    padding: 5px 9px !important;
    border-radius: 8px !important;
    font-size: 12px !important;
}

.directory-tools > div {
    display: flex !important;
    justify-content: space-between !important;
    gap: 6px !important;
}

.directory-tools .link-tool {
    min-height: 24px !important;
    padding: 2px 8px !important;
    border-radius: 999px !important;
    font-size: 12px !important;
}

.tree-list {
    max-height: calc(100dvh - 164px) !important;
    padding: 4px 6px 10px !important;
}

.catalog-tree,
.catalog-tree__children {
    gap: 2px !important;
}

.catalog-tree__children {
    margin-left: 9px !important;
    padding-left: 7px !important;
}

.catalog-tree__summary {
    min-height: 28px !important;
    padding: 0 !important;
    border-radius: 8px !important;
}

.catalog-tree__link,
.catalog-tree__label {
    min-height: 28px !important;
    padding: 5px 7px !important;
    gap: 6px !important;
    border-radius: 8px !important;
    font-size: 12px !important;
    line-height: 1.25 !important;
}

.catalog-tree__link span,
.catalog-tree__label span {
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
}

.catalog-tree__link em,
.catalog-tree__label em {
    min-width: 20px !important;
    padding: 1px 5px !important;
    border-radius: 999px !important;
    font-size: 11px !important;
    line-height: 16px !important;
}

.catalog-tree__link.is-active {
    background: #edf5ff !important;
    color: #1657c7 !important;
    box-shadow: inset 3px 0 0 #2f7df4 !important;
}

.sidebar-actions {
    padding: 8px 10px 10px !important;
    gap: 6px !important;
}

.sidebar-actions .btn {
    min-height: 30px !important;
    padding: 5px 8px !important;
    border-radius: 8px !important;
    font-size: 12px !important;
}

.laravel-pagination {
    margin-top: 18px !important;
}

.laravel-pagination .pager {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 12px !important;
    padding: 10px 12px !important;
    border: 1px solid #e6edf7 !important;
    border-radius: 12px !important;
    background: #fff !important;
    box-shadow: 0 8px 24px rgba(17, 24, 39, .04) !important;
}

.pager__summary {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    color: #64748b !important;
    font-size: 12px !important;
    white-space: nowrap !important;
}

.pager__summary b {
    color: #1f2937 !important;
    font-size: 13px !important;
}

.pager__links {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    flex-wrap: wrap !important;
    gap: 5px !important;
}

.pager__item {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 30px !important;
    height: 30px !important;
    padding: 0 9px !important;
    border: 1px solid #dbe5f1 !important;
    border-radius: 8px !important;
    background: #fff !important;
    color: #334155 !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    line-height: 1 !important;
    text-decoration: none !important;
}

a.pager__item:hover {
    border-color: #abc8ff !important;
    background: #f4f8ff !important;
    color: #1554bd !important;
}

.pager__item.is-active {
    border-color: #2f7df4 !important;
    background: #2f7df4 !important;
    color: #fff !important;
}

.pager__item.is-disabled,
.pager__ellipsis {
    color: #a8b3c3 !important;
    background: #f8fafc !important;
    cursor: not-allowed !important;
}

@media (max-width: 1180px) {
    .selection-shell {
        grid-template-columns: 1fr !important;
    }

    .selection-sidebar {
        max-width: none !important;
    }

    .tree-list {
        max-height: 360px !important;
    }
}

@media (max-width: 680px) {
    .laravel-pagination .pager {
        align-items: stretch !important;
        flex-direction: column !important;
    }

    .pager__summary {
        justify-content: center !important;
    }

    .pager__links {
        justify-content: center !important;
    }
}

/* PAPER CLEAN READING MODE 2026-06-21: keep imported papers quiet until hover/focus. */
.paper-sheet.paper-sheet--read .paper-question {
    outline: none;
}

.paper-sheet.paper-sheet--read .paper-question__meta,
.paper-sheet.paper-sheet--read .paper-question__actions,
.paper-sheet.paper-sheet--read .paper-question__answer {
    max-height: 0 !important;
    margin-top: 0 !important;
    opacity: 0 !important;
    overflow: hidden !important;
    pointer-events: none !important;
    transform: translateY(-3px);
    transition: opacity .16s ease, max-height .16s ease, margin-top .16s ease, transform .16s ease;
}

.paper-sheet.paper-sheet--read .paper-question:hover .paper-question__meta,
.paper-sheet.paper-sheet--read .paper-question:hover .paper-question__actions,
.paper-sheet.paper-sheet--read .paper-question:hover .paper-question__answer,
.paper-sheet.paper-sheet--read .paper-question.is-tools-visible .paper-question__meta,
.paper-sheet.paper-sheet--read .paper-question.is-tools-visible .paper-question__actions,
.paper-sheet.paper-sheet--read .paper-question.is-tools-visible .paper-question__answer,
.paper-sheet.paper-sheet--read .paper-question:focus-within .paper-question__meta,
.paper-sheet.paper-sheet--read .paper-question:focus-within .paper-question__actions,
.paper-sheet.paper-sheet--read .paper-question:focus-within .paper-question__answer,
.paper-sheet.paper-sheet--read .paper-question__answer[open] {
    max-height: 1200px !important;
    opacity: 1 !important;
    overflow: visible !important;
    pointer-events: auto !important;
    transform: translateY(0);
}

.paper-sheet.paper-sheet--read .paper-question:hover .paper-question__meta,
.paper-sheet.paper-sheet--read .paper-question.is-tools-visible .paper-question__meta,
.paper-sheet.paper-sheet--read .paper-question:focus-within .paper-question__meta {
    margin-top: 10px !important;
}

.paper-sheet.paper-sheet--read .paper-question:hover .paper-question__actions,
.paper-sheet.paper-sheet--read .paper-question.is-tools-visible .paper-question__actions,
.paper-sheet.paper-sheet--read .paper-question:focus-within .paper-question__actions {
    margin-top: 8px !important;
}

.paper-sheet.paper-sheet--read .paper-question:hover .paper-question__answer,
.paper-sheet.paper-sheet--read .paper-question.is-tools-visible .paper-question__answer,
.paper-sheet.paper-sheet--read .paper-question:focus-within .paper-question__answer,
.paper-sheet.paper-sheet--read .paper-question__answer[open] {
    margin-top: 9px !important;
}

/* PAPER DETAIL SIZE GUARD 2026-06-21: keep section labels and question numbers quiet. */
.paper-sheet.paper-sheet--read h2.paper-section-heading {
    margin: 22px 0 10px !important;
    padding: 6px 11px !important;
    border-left-width: 3px !important;
    color: #152235 !important;
    font-size: 14px !important;
    line-height: 1.35 !important;
    font-weight: 700 !important;
}

.paper-sheet.paper-sheet--read .paper-question__number {
    font-size: 15px !important;
    line-height: 1.9 !important;
}

@media (max-width: 700px) {
    .paper-sheet.paper-sheet--read h2.paper-section-heading {
        font-size: 13.5px !important;
    }

    .paper-sheet.paper-sheet--read .paper-question__number {
        font-size: 14px !important;
    }
}

/* PAPER READER 2026-06-21: XKW-like full paper view, separate from question-list cards. */
.paper-detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: start;
    gap: 18px;
}

.paper-sheet.paper-sheet--read {
    display: block;
    min-height: 900px;
    padding: 34px 42px 46px;
    border: 1px solid #dbe3ee;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 16px 34px rgba(20, 32, 51, .07);
}

.paper-sheet__header {
    padding-bottom: 20px;
    border-bottom: 2px solid #24364d;
    text-align: center;
}

.paper-sheet__eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 0 10px;
    border: 1px solid #d4deea;
    border-radius: 999px;
    background: #f7fafc;
    color: #66758a;
    font-size: 12px;
    font-weight: 600;
}

.paper-sheet__header h1 {
    margin: 14px auto 10px;
    max-width: 820px;
    color: #101827;
    font-size: 23px;
    font-weight: 700;
    line-height: 1.45;
}

.paper-sheet__meta,
.paper-sheet__stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 16px;
    color: #536174;
    font-size: 13px;
}

.paper-sheet__stats {
    margin-top: 8px;
    color: #24364d;
    font-weight: 600;
}

.paper-section-heading {
    margin: 22px 0 10px;
    padding: 6px 11px;
    border: 1px solid #d5dfec;
    border-left: 3px solid var(--primary);
    border-radius: 4px;
    background: #f7fafc;
    color: #152235;
    font-size: 14px;
    font-weight: 700;
}

.paper-question {
    padding: 18px 0 16px;
    border-bottom: 1px solid #e5ebf2;
    scroll-margin-top: 18px;
}

.paper-question:last-of-type {
    border-bottom: 0;
}

.paper-question__main {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 8px;
}

.paper-question__number {
    color: #111827;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.9;
    text-align: right;
}

.paper-question__content {
    min-width: 0;
}

.paper-question__stem {
    color: #111827;
    font-size: 15.5px;
    line-height: 1.9;
}

.paper-question__stem p {
    margin: 0 0 8px;
}

.paper-question__stem img,
.paper-question__option img,
.paper-question__answer img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

.paper-question__stem table,
.paper-question__answer table {
    max-width: 100%;
    border-collapse: collapse;
}

.paper-question__options {
    display: grid;
    grid-template-columns: repeat(2, minmax(180px, 1fr));
    gap: 8px 26px;
    margin-top: 10px;
}

.paper-question__option {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    min-height: 28px;
    color: #111827;
    font-size: 15px;
    line-height: 1.8;
}

.paper-question__option b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    color: #101827;
    font-weight: 700;
}

.paper-question__score {
    display: inline-flex;
    margin-top: 8px;
    padding: 1px 8px;
    border-radius: 4px;
    background: #fff7ed;
    color: #9a3412;
    font-size: 12px;
    font-weight: 600;
}

.paper-question__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.paper-question__meta span {
    padding: 2px 8px;
    border-radius: 999px;
    background: #f1f5f9;
    color: #64748b;
    font-size: 12px;
    line-height: 1.5;
}

.paper-question__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 12px;
    margin-top: 10px;
    color: #66758a;
    font-size: 13px;
}

.paper-question__actions a,
.paper-question__actions .link-button {
    min-height: 30px;
    padding: 3px 0;
    border: 0;
    background: transparent;
    color: #526277;
    font-size: 13px;
    font-weight: 500;
}

.paper-question__actions a:hover,
.paper-question__actions .link-button:hover,
.paper-question__actions .link-button.is-favorited {
    color: var(--primary);
}

.paper-question__actions .js-add-basket.is-added {
    background: transparent !important;
    color: #9a3412 !important;
    box-shadow: none !important;
}

.paper-question__answer {
    margin-top: 10px;
    border: 1px solid #dbe5f0;
    border-radius: 5px;
    background: #fbfdff;
}

.paper-question__answer summary {
    padding: 9px 12px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.paper-question__answer summary::-webkit-details-marker {
    display: none;
}

.paper-question__answer summary::before {
    content: "▸";
    display: inline-block;
    width: 16px;
    color: #94a3b8;
}

.paper-question__answer[open] summary::before {
    content: "▾";
}

.paper-answer-grid {
    display: grid;
    grid-template-columns: 1fr 1.25fr;
    gap: 14px;
    padding: 12px;
    border-top: 1px solid #e2e8f0;
    background: #fff;
}

.paper-answer-grid > div {
    min-width: 0;
}

.paper-answer-grid b {
    display: inline-flex;
    margin-bottom: 8px;
    padding: 2px 8px;
    border-radius: 999px;
    background: #e7f4f1;
    color: var(--primary);
    font-size: 12px;
}

.paper-reader-tools {
    position: sticky;
    top: 14px;
    display: grid;
    gap: 12px;
}

.paper-reader-tools__panel {
    padding: 16px;
    border: 1px solid #dbe3ee;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 10px 24px rgba(20, 32, 51, .05);
}

.paper-reader-tools__panel h2 {
    margin: 0 0 12px;
    color: #152235;
    font-size: 15px;
    font-weight: 700;
}

.paper-reader-tools__panel .btn {
    width: 100%;
    margin-top: 10px;
}

.paper-reader-stats {
    margin: 0;
}

.paper-reader-stats div {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid #edf2f7;
}

.paper-reader-stats div:last-child {
    border-bottom: 0;
}

.paper-reader-stats dt {
    color: #64748b;
    font-size: 13px;
}

.paper-reader-stats dd {
    margin: 0;
    color: #152235;
    font-weight: 700;
}

.paper-section-nav {
    display: grid;
    gap: 6px;
}

.paper-section-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 34px;
    padding: 6px 9px;
    border-radius: 5px;
    color: #334155;
    font-size: 13px;
}

.paper-section-nav a:hover {
    background: #f1f5f9;
    color: var(--primary);
}

.paper-section-nav em {
    color: #94a3b8;
    font-style: normal;
    white-space: nowrap;
}

.paper-reader-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.paper-reader-tags a {
    padding: 4px 8px;
    border: 1px solid #dbe5f0;
    border-radius: 999px;
    background: #f8fafc;
    color: #475569;
    font-size: 12px;
}

@media (max-width: 1180px) {
    .paper-detail-layout {
        grid-template-columns: 1fr;
    }

    .paper-reader-tools {
        position: static;
        order: -1;
    }

    .paper-reader-tools__panel {
        box-shadow: none;
    }
}

@media (max-width: 700px) {
    .paper-sheet.paper-sheet--read {
        padding: 22px 16px 30px;
    }

    .paper-sheet__header h1 {
        font-size: 19px;
    }

    .paper-question__main {
        grid-template-columns: 30px minmax(0, 1fr);
    }

    .paper-question__number {
        font-size: 14px;
    }

    .paper-question__stem {
        font-size: 15px;
    }

    .paper-question__options,
    .paper-answer-grid {
        grid-template-columns: 1fr;
    }

    .paper-question__meta {
        display: none;
    }
}

/* PAPER ANSWER READABILITY FIX 2026-06-21: keep answer screenshots readable. */
.paper-question__answer .paper-answer-grid {
    display: block !important;
    padding: 14px !important;
}

.paper-question__answer .paper-answer-grid > div {
    min-width: 0;
    padding: 12px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: #fff;
}

.paper-question__answer .paper-answer-grid > div + div {
    margin-top: 12px;
}

.paper-question__answer .paper-answer-grid > div > div {
    overflow-x: visible;
    padding-bottom: 2px;
}

.paper-question__answer img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
}

@media (max-width: 700px) {
    .paper-question__answer .paper-answer-grid {
        padding: 10px !important;
    }

    .paper-question__answer .paper-answer-grid > div {
        padding: 10px;
    }
}

/* FINAL ICON GUARD 2026-06-21: stable SVG icons for header and floating tools. */
.icon {
    width: 1em !important;
    height: 1em !important;
    display: inline-block !important;
    vertical-align: -0.125em;
    fill: none !important;
    stroke: currentColor !important;
    stroke-width: 2 !important;
    stroke-linecap: round !important;
    stroke-linejoin: round !important;
}

.brand-mark {
    display: inline-grid !important;
    place-items: center !important;
}

.brand-mark .icon {
    width: 24px !important;
    height: 24px !important;
}

.header-tools a b {
    position: relative;
    display: inline-grid !important;
    place-items: center !important;
    width: 34px !important;
    height: 34px !important;
    padding: 0 !important;
    line-height: 1 !important;
    font-size: 15px !important;
    overflow: visible !important;
}

.header-tools a b .icon {
    width: 18px !important;
    height: 18px !important;
}

.header-tools .tool-icon-badge em {
    position: absolute;
    right: -5px;
    top: -5px;
    min-width: 17px;
    height: 17px;
    display: inline-grid;
    place-items: center;
    border-radius: 999px;
    border: 1px solid #fff;
    background: var(--primary);
    color: #fff;
    font-style: normal;
    font-size: 11px;
    font-weight: 800;
    line-height: 1;
}

.float-tools b {
    display: inline-grid !important;
    place-items: center !important;
    padding: 0 !important;
    line-height: 1 !important;
}

.float-tools b .icon {
    width: 17px !important;
    height: 17px !important;
}

.float-tools span em {
    min-width: 16px;
    height: 16px;
    display: inline-grid;
    place-items: center;
    margin-left: 2px;
    border-radius: 999px;
    background: #eef5ff;
    color: var(--primary);
    font-style: normal;
    font-size: 11px;
    font-weight: 800;
}

.float-tools a,
.float-tools button {
    width: 72px !important;
    min-height: 68px !important;
}

.float-tools span {
    white-space: normal !important;
    overflow: visible !important;
    text-overflow: clip !important;
    line-height: 1.25 !important;
}

/* SVG icon system: replace text badges with a consistent icon set. */
.icon {
    width: 1em;
    height: 1em;
    display: inline-block;
    vertical-align: -0.125em;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.brand-mark .icon {
    width: 24px;
    height: 24px;
}

.header-tools a b {
    display: inline-grid !important;
    place-items: center;
    width: 34px !important;
    height: 34px !important;
    padding: 0 !important;
    line-height: 1 !important;
    font-size: 15px !important;
}

.header-tools a b .icon {
    width: 18px;
    height: 18px;
}

.header-tools a b .js-basket-count {
    display: inline-grid;
    min-width: 18px;
    height: 18px;
    place-items: center;
    border-radius: 999px;
    background: #fff;
    color: var(--primary);
    font-size: 12px;
    font-weight: 800;
    line-height: 1;
}

.float-tools b {
    display: inline-grid !important;
    place-items: center;
    padding: 0 !important;
    line-height: 1 !important;
}

.float-tools b .icon {
    width: 17px;
    height: 17px;
}

.float-tools span em {
    min-width: 16px;
    height: 16px;
    display: inline-grid;
    place-items: center;
    margin-left: 2px;
    border-radius: 999px;
    background: #eef5ff;
    color: var(--primary);
    font-style: normal;
    font-size: 11px;
    font-weight: 800;
}

.question-card__source a {
    pointer-events: none;
}

.active-filter-bar {
    border-color: #fed7aa;
    background: #fff8f0;
    color: #9a3412;
}

.active-filter-bar a {
    color: #9a3412;
}

.paper-row {
    border-color: #dfe7f1;
}

.paper-row__label span {
    border: 1px solid #fed7aa;
    background: #fff7ed;
    color: #9a3412;
}

.paper-row__tags a,
.paper-row__tags span {
    border: 1px solid #e4ebf5;
    background: #f7f9fc;
}

.paper-row__tags a:hover {
    border-color: #cfe0ff;
    background: #eef5ff;
}

.float-tools a,
.float-tools button {
    border-color: #dfe7f1;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 12px 26px rgba(21, 34, 56, .1);
}

.float-tools {
    gap: 10px;
}

.float-tools a,
.float-tools button {
    width: 64px;
    min-height: 64px;
    padding: 8px 6px;
    border-radius: 16px;
    color: #4b5a6f;
}

.float-tools a:hover,
.float-tools button:hover {
    border-color: #b9cff6;
    color: var(--primary);
    transform: translateY(-1px);
}

.float-tools b {
    width: 28px;
    height: 28px;
    margin: 0 auto 4px;
    font-size: 13px;
}

.float-tools span {
    display: block;
    width: 100%;
    overflow: hidden;
    color: inherit;
    font-size: 12px;
    line-height: 1.25;
    text-align: center;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.site-footer {
    background: #fff;
    border-top: 1px solid #dfe7f1;
    color: #667085;
}

.site-footer .container {
    min-height: 54px;
}

.toast {
    background: #12213a;
    color: #fff;
}

@media (max-width: 980px) {
    .selection-shell {
        gap: 12px;
    }

    .filter-row {
        grid-template-columns: 68px minmax(0, 1fr);
    }
}

@media (max-width: 760px) {
    .brand-search,
    .result-toolbar,
    .question-card__topline,
    .question-card__footer {
        gap: 10px;
    }

    .filter-row,
    .filter-search {
        grid-template-columns: 1fr;
    }

    .question-card__options {
        grid-template-columns: 1fr;
    }

    .float-tools {
        display: none;
    }
}

/* ============================================================
   MATURE PLATFORM POLISH — final consolidation layer (2026)
   Calms the prior style stacks: unified tokens, restrained
   shadows, consistent radii, refined typography, calmer accents.
   ============================================================ */
/* ---- 1. Final design tokens (override prior :root layers) ---- */
:root {
    --bg: #f5f7fb;
    --bg-soft: #f9fbfe;
    --surface: #ffffff;
    --surface-soft: #f7f9fc;
    --surface-muted: #eef2f8;
    --text: #0f172a;
    --text-strong: #0b1220;
    --muted: #5b6779;
    --subtle: #8a96a8;
    --line: #e6ebf2;
    --line-soft: #eef1f6;
    --line-strong: #d4dbe6;
    --primary: #2563eb;
    --primary-dark: #1d4fd0;
    --primary-soft: #ecf2ff;
    --primary-tint: #f4f7fe;
    --accent: #b25b08;
    --accent-soft: #fff5e8;
    --danger: #c83a2e;
    --success: #15885a;
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);
    --shadow-sm: 0 2px 6px rgba(15, 23, 42, .05);
    --shadow-md: 0 6px 18px rgba(15, 23, 42, .06);
    --shadow-lg: 0 14px 36px rgba(15, 23, 42, .08);
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --radius-pill: 999px;
    --ease: cubic-bezier(.4, 0, .2, 1);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC", "Source Han Sans SC", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}
/* ---- 2. Body, base typography, surfaces ---- */
body.site-body,
body {
    background:
        radial-gradient(ellipse at 0% -10%, rgba(37, 99, 235, .04), transparent 45%),
        radial-gradient(ellipse at 100% 0%, rgba(178, 91, 8, .025), transparent 35%),
        linear-gradient(180deg, #f7f9fd 0%, #f3f6fb 60%, #f5f7fb 100%) !important;
    color: var(--text);
    font-size: 14px;
    line-height: 1.7;
    letter-spacing: .005em;
}

h1, h2, h3, h4 {
    color: var(--text-strong);
    letter-spacing: -.01em;
}

a {
    transition: color .15s var(--ease);
}

a:hover {
    color: var(--primary-dark);
}

::selection {
    background: rgba(37, 99, 235, .18);
    color: var(--text-strong);
}

.muted {
    color: var(--muted);
}

.container,
.site-main {
    width: min(1240px, calc(100% - 32px));
}

.site-main {
    padding: 18px 0 48px;
}
/* ---- 3. Header: utility bar, brand, search, tools ---- */
.portal-header {
    background: rgba(255, 255, 255, .96);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 1px 0 rgba(15, 23, 42, .03), 0 6px 22px rgba(15, 23, 42, .035);
    backdrop-filter: saturate(140%) blur(8px);
}

.portal-header::after {
    display: none;
}

.utility-bar {
    height: 36px;
    background: #fbfcfe;
    border-bottom: 1px solid var(--line-soft);
    color: #56657a;
    font-size: 12.5px;
}

.utility-bar__inner,
.utility-bar nav {
    min-height: 36px;
    gap: 16px;
}

.utility-brand {
    color: #2c3a52;
    font-weight: 600;
    letter-spacing: .01em;
}

.utility-brand span {
    margin-left: 10px;
    color: var(--subtle);
    font-weight: 400;
}

.utility-bar nav a {
    color: #4a5567;
    font-weight: 500;
    transition: color .15s var(--ease);
}

.utility-bar nav a:hover {
    color: var(--primary);
}

.utility-login {
    min-width: 56px;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: var(--primary);
    color: #fff !important;
    font-weight: 600;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .35) inset, 0 4px 10px rgba(37, 99, 235, .18);
}

.utility-login:hover {
    background: var(--primary-dark);
    color: #fff !important;
}
/* ---- 4. Brand mark + global search ---- */
.brand-search {
    grid-template-columns: 240px minmax(360px, 1fr) 280px;
    gap: 28px;
    padding: 20px 0 16px;
    align-items: center;
}

.brand--portal {
    gap: 14px;
}

.brand--portal .brand-mark {
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 12px;
    background: linear-gradient(140deg, #2563eb 0%, #1d4fd0 100%);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: .02em;
    box-shadow: 0 6px 14px rgba(37, 99, 235, .28), inset 0 1px 0 rgba(255, 255, 255, .2);
}

.brand--portal b {
    color: var(--text-strong);
    font-size: 21px;
    font-weight: 700;
    letter-spacing: .01em;
}

.brand--portal small {
    margin-top: 3px;
    color: var(--subtle);
    font-size: 12px;
}

.global-search {
    grid-template-columns: minmax(0, 1fr) 80px;
    border: 1px solid var(--line-strong);
    border-radius: 12px;
    background: #fff;
    box-shadow: var(--shadow-sm);
    transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.global-search:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .12), var(--shadow-sm);
}

.global-search input {
    min-height: 44px;
    padding: 10px 16px;
    background: transparent;
    font-size: 14px;
    color: var(--text);
}

.global-search input::placeholder {
    color: var(--subtle);
}

.global-search button {
    min-height: 36px;
    margin-right: 6px;
    padding: 0 14px;
    border-radius: 8px;
    background: var(--primary);
    background-image: none;
    color: #fff;
    font-weight: 600;
    letter-spacing: .04em;
    box-shadow: 0 4px 10px rgba(37, 99, 235, .2);
    transition: background .15s var(--ease), box-shadow .15s var(--ease);
}

.global-search button:hover {
    background: var(--primary-dark);
    box-shadow: 0 6px 14px rgba(37, 99, 235, .28);
}

.search-shortcuts {
    color: var(--subtle);
    font-size: 12px;
    gap: 14px;
}

.search-shortcuts a {
    color: var(--muted);
    transition: color .15s var(--ease);
}

.search-shortcuts a:hover {
    color: var(--primary);
}
/* ---- 5. Header tools, workflow nav, float tools ---- */
.header-tools {
    gap: 8px;
}

.header-tools a {
    grid-template-rows: auto auto;
    gap: 4px;
    padding: 6px 10px;
    border: 1px solid transparent;
    border-radius: 10px;
    background: transparent;
    box-shadow: none;
    color: var(--muted);
    font-size: 12px;
    font-weight: 500;
    transition: background .15s var(--ease), border-color .15s var(--ease), color .15s var(--ease), transform .15s var(--ease);
}

.header-tools a:hover {
    background: var(--primary-tint);
    border-color: var(--line);
    color: var(--primary);
    transform: none;
}

.header-tools a b,
.float-tools b {
    width: 30px;
    height: 30px;
    background: var(--primary-soft);
    background-image: none;
    border: 0;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    box-shadow: none;
}

.header-tools a:hover b {
    background: var(--primary);
    color: #fff;
}

.workflow-nav {
    background: #fff;
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line);
}

.workflow-nav__inner {
    display: flex;
    align-items: stretch;
    gap: 16px;
    min-height: 58px;
}

.workflow-nav__links {
    display: flex;
    align-items: center;
    gap: 4px;
    min-width: 0;
    flex: 1;
    overflow-x: auto;
}

.workflow-nav__links a {
    min-height: 50px;
    padding: 0 16px;
    border-radius: 0;
    color: #2c3a52;
    font-size: 14.5px;
    font-weight: 500;
    letter-spacing: .005em;
    transition: color .15s var(--ease), background .15s var(--ease);
}

.workflow-nav__links a:hover {
    background: var(--primary-tint);
    color: var(--primary);
}

.workflow-nav__links a.is-active {
    color: var(--primary);
    font-weight: 700;
    background: transparent;
}

.workflow-nav__links a.is-active::after {
    left: 16px;
    right: 16px;
    bottom: 0;
    height: 2px;
    border-radius: 2px 2px 0 0;
    background: var(--primary);
}

.workflow-subject-nav {
    position: relative;
    flex: 0 0 192px;
    margin: 0;
    border-radius: 0;
    overflow: visible;
}

.workflow-subject-nav__button {
    width: 100%;
    height: 100%;
    min-height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 0;
    border-radius: 0;
    background: linear-gradient(180deg, #2f78ff 0%, #2563eb 100%);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .18);
}

.workflow-subject-nav__button i {
    width: 9px;
    height: 9px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
}

.workflow-subject-nav__panel {
    left: 0;
    top: calc(100% - 1px);
    width: 360px;
}

.grade-picker--subject {
    z-index: 50;
    border-top: 0;
    border-bottom: 0;
    background: transparent;
}

.grade-picker--subject .grade-picker__trigger {
    min-height: 58px;
    justify-content: center;
    gap: 12px;
    padding: 0 18px;
    background: linear-gradient(180deg, #2f78ff 0%, #2563eb 100%);
    color: #fff;
    font-size: 15.5px;
    font-weight: 700;
}

.grade-picker--subject .grade-picker__trigger::before,
.grade-picker--subject .grade-picker__trigger::after {
    display: none;
}

.grade-picker--subject .grade-picker__trigger span:first-of-type {
    max-width: none;
    color: inherit;
}

.grade-picker--subject .grade-picker__trigger i {
    flex: 0 0 9px;
    width: 9px;
    height: 9px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: rotate(135deg) translateY(1px);
}

.grade-picker--subject:hover .grade-picker__trigger i,
.grade-picker--subject:focus-within .grade-picker__trigger i,
.grade-picker--subject.is-open .grade-picker__trigger i {
    transform: rotate(-45deg) translateY(-1px);
}

.grade-picker--subject .grade-picker__panel {
    width: 420px;
    border-radius: 0 0 12px 12px;
}

.grade-picker__row--compact {
    grid-template-columns: 44px minmax(0, 1fr);
}

.grade-picker__row--compact .grade-picker__options {
    gap: 6px 10px;
}

.catalog-version-picker {
    margin: 0;
    border-top: 0;
    border-bottom: 1px solid #edf2f7;
    background: #fff;
    z-index: 9300 !important;
}

.catalog-version-picker .grade-picker__trigger {
    min-height: 46px;
    padding: 0 16px;
    border-bottom: 0;
    background: #fff;
    color: #1e293b;
    font-size: 13.5px;
    font-weight: 600;
}

.catalog-version-picker .grade-picker__trigger::before {
    display: none;
}

.catalog-version-picker .grade-picker__trigger span:first-of-type,
.catalog-version-picker .grade-picker__trigger span:last-of-type {
    max-width: none;
    min-width: 0;
    color: inherit;
}

.catalog-version-picker .grade-picker__trigger i {
    margin: 0 2px;
}

.catalog-version-picker .grade-picker__panel {
    width: min(560px, calc(100vw - 34px));
    max-height: 420px;
    overflow: auto;
    padding: 14px 16px 16px;
    border-color: #dbe5f1;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 18px 42px rgba(15, 23, 42, .14);
}

.catalog-version-picker .grade-picker__row {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 10px;
}

.catalog-version-picker .grade-picker__options {
    gap: 6px 8px;
}

.catalog-version-picker .grade-picker__options a {
    min-height: 30px;
    border-radius: 6px;
    padding: 3px 9px;
    color: #334155;
    font-size: 13px;
}

.catalog-version-picker .grade-picker__options a:hover,
.catalog-version-picker .grade-picker__options a.is-active {
    background: #eaf5f2;
    color: #0f766e;
}
/* ---- 6. Buttons, inputs, base controls ---- */
.btn {
    min-height: 38px;
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .01em;
    box-shadow: none;
    transition: background .15s var(--ease), border-color .15s var(--ease), color .15s var(--ease), box-shadow .15s var(--ease), transform .12s var(--ease);
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--primary);
    background-image: none;
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .2) inset, 0 4px 10px rgba(37, 99, 235, .2);
}

.btn-primary:hover {
    background: var(--primary-dark);
    background-image: none;
    border-color: var(--primary-dark);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .25) inset, 0 6px 14px rgba(37, 99, 235, .28);
}

.btn-secondary {
    background: #fff;
    background-image: none;
    border-color: var(--line-strong);
    color: var(--text-strong);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: var(--primary-tint);
    color: var(--primary-dark);
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--muted);
}

.btn-ghost:hover {
    background: var(--surface-soft);
    color: var(--text-strong);
}

input,
select,
textarea {
    min-height: 38px;
    border: 1px solid var(--line-strong);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    font-size: 14px;
    transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}

input::placeholder,
textarea::placeholder {
    color: var(--subtle);
}

input:hover,
select:hover,
textarea:hover {
    border-color: #b9c2d1;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .14);
}
/* ---- 7. Universal surface system: cards, panels, sections ---- */
.subject-board,
.home-side > *,
.home-banner,
.workbench-strip,
.exam-lane,
.table-panel,
.filter-panel,
.filter-panel--bar,
.selection-sidebar,
.question-card,
.paper-row,
.smart-step,
.smart-result,
.paper-settings,
.paper-sheet,
.question-detail,
.side-panel,
.member-auth__intro,
.member-auth__form,
.member-hero,
.membership-plan,
.member-rules,
.member-profile,
.member-summary article,
.member-quick a,
.admin-page-title,
.admin-stat-grid article,
.import-panel,
.tool-title,
.page-title,
.result-toolbar,
.basket-dock,
.login-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow-xs);
    transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

/* Float tools — softer pill column */
.float-tools {
    right: 16px;
    gap: 8px;
}

.float-tools a,
.float-tools button {
    width: 56px;
    min-height: 60px;
    padding: 8px 6px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    color: var(--muted);
    box-shadow: var(--shadow-md);
    transition: border-color .15s var(--ease), color .15s var(--ease), transform .15s var(--ease), box-shadow .15s var(--ease);
}

.float-tools a:hover,
.float-tools button:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.float-tools b {
    width: 26px;
    height: 26px;
    margin: 0 auto 4px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
}
/* ---- 8. Home: portal layout, subject board, banner ---- */
.home-portal {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 16px;
}

.subject-board {
    overflow: hidden;
}

.subject-picker {
    position: relative;
    padding: 14px 16px 0;
}

.subject-picker__trigger {
    width: 100%;
    min-height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 0;
    border-radius: 10px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4fd0 100%);
    color: #fff;
    box-shadow: 0 14px 28px rgba(37, 99, 235, .18);
    font-size: 16px;
    font-weight: 700;
}

.subject-picker__trigger i {
    width: 10px;
    height: 10px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-1px);
}

.subject-picker__panel {
    margin-top: 12px;
    border: 1px solid #dbe5f2;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 14px 32px rgba(15, 23, 42, .08);
    overflow: hidden;
}

.subject-picker__section {
    padding: 14px 16px 16px;
}

.subject-picker__section + .subject-picker__section {
    border-top: 1px solid var(--line-soft);
}

.subject-picker__label {
    margin-bottom: 12px;
    color: #7a8798;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .04em;
}

.subject-picker__stage-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.subject-picker__stage-list a,
.subject-picker__subject-grid a {
    min-height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: #334155;
    font-size: 13.5px;
    font-weight: 500;
    transition: background .15s var(--ease), color .15s var(--ease), box-shadow .15s var(--ease);
}

.subject-picker__stage-list a:hover,
.subject-picker__subject-grid a:hover {
    background: #eff6ff;
    color: #2563eb;
}

.subject-picker__stage-list a.is-active,
.subject-picker__subject-grid a.is-current {
    background: #e8f0ff;
    color: #2563eb;
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, .14);
    font-weight: 700;
}

.subject-picker__subject-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

@media (max-width: 640px) {
    .subject-picker__stage-list,
    .subject-picker__subject-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.subject-board__tip {
    margin: 14px 16px 16px;
    padding: 12px 14px;
    border: 1px dashed var(--line-strong);
    border-top: 1px dashed var(--line-strong);
    background: var(--surface-soft);
    border-radius: 8px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.7;
}

.subject-board__tip b {
    color: var(--text-strong);
    font-weight: 600;
}
/* ---- 9. Home banner, workbench strip, side cards ---- */
.home-banner {
    min-height: 220px;
    padding: 36px 36px;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(ellipse at 88% 110%, rgba(178, 91, 8, .08), transparent 55%),
        linear-gradient(115deg, #fbf7ef 0%, #f4f7fd 60%, #ffffff 100%);
    overflow: hidden;
    position: relative;
}

.home-banner::before {
    content: "";
    position: absolute;
    right: -60px;
    top: -60px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, .08) 0%, transparent 70%);
    pointer-events: none;
}

.home-banner span {
    display: inline-flex;
    margin-bottom: 14px;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: rgba(178, 91, 8, .1);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .04em;
}

.home-banner h1 {
    margin: 0;
    color: var(--text-strong);
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -.015em;
}

.home-banner p {
    max-width: 560px;
    margin: 12px 0 22px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.7;
}

.home-banner__actions {
    gap: 12px;
}

.home-banner__actions .btn {
    padding: 10px 22px;
    border-radius: 8px;
}

.workbench-strip {
    padding: 18px 22px;
    min-height: 122px;
}

.workbench-strip a {
    padding: 10px 16px;
    border-right: 1px solid var(--line-soft);
    border-radius: 0;
    transition: background .15s var(--ease);
    position: relative;
}

.workbench-strip a::before {
    display: none;
}

.workbench-strip a:hover {
    background: var(--primary-tint);
}

.workbench-strip a:last-child {
    border-right: 0;
}

.workbench-strip b {
    color: var(--text-strong);
    font-size: 15px;
    font-weight: 600;
    padding-left: 0;
}

.workbench-strip span {
    margin-top: 8px;
    color: var(--muted);
    font-size: 12.5px;
    line-height: 1.7;
    padding-left: 0;
}

.workbench-strip a:hover b {
    color: var(--primary);
}
/* ---- 10. Home side: login card, stats, feature card ---- */
.home-side {
    gap: 14px;
}

.login-card {
    padding: 20px;
}

.login-card--context {
    background: linear-gradient(180deg, #fbfdff 0%, #f6f9ff 100%);
}

.login-card b {
    color: var(--text-strong);
    font-size: 15px;
    font-weight: 600;
}

.login-card span {
    margin-top: 6px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

.login-card__actions {
    margin-top: 16px;
    gap: 10px;
}

.home-stats {
    overflow: hidden;
    border-radius: var(--radius);
}

.home-stats div {
    padding: 18px 16px;
    border-right: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
    transition: background .15s var(--ease);
}

.home-stats div:hover {
    background: var(--primary-tint);
}

.home-stats b {
    color: var(--primary);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -.02em;
}

.home-stats span {
    margin-top: 6px;
    color: var(--muted);
    font-size: 12.5px;
}

.feature-card {
    padding: 18px;
}

.feature-card h2 {
    margin: 0 0 12px;
    color: var(--text-strong);
    font-size: 15px;
    font-weight: 600;
}

.feature-card > div {
    gap: 8px;
}

.feature-card a {
    min-height: 70px;
    padding: 10px 8px;
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    background: var(--surface-soft);
    transition: background .15s var(--ease), border-color .15s var(--ease), transform .12s var(--ease);
}

.feature-card a:hover {
    background: var(--primary-tint);
    border-color: var(--primary-soft);
    transform: none;
}

.feature-card b {
    color: var(--text-strong);
    font-size: 13.5px;
    font-weight: 600;
}

.feature-card span {
    margin-top: 4px;
    color: var(--subtle);
    font-size: 11.5px;
}
/* ---- 11. Section head, scenario cards, paper link, type stats ---- */
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    border-bottom: 1px solid var(--line-soft);
    background: transparent;
    border-radius: 0;
}

.section-head h2 {
    margin: 0;
    color: var(--text-strong);
    font-size: 16px;
    font-weight: 600;
}

.section-head p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 12.5px;
}

.section-head a {
    color: var(--primary);
    font-size: 13px;
    font-weight: 500;
    transition: color .15s var(--ease);
}

.section-head a:hover {
    color: var(--primary-dark);
}

.section-head a::after {
    content: " ›";
    color: var(--subtle);
    transition: transform .15s var(--ease);
}

.exam-lane,
.home-content-grid,
.home-type-panel {
    margin-top: 14px;
}

.scenario-cards {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    padding: 18px 22px 22px;
}

.scenario-cards a {
    min-height: 76px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: linear-gradient(180deg, #fff, #fafcff);
    box-shadow: var(--shadow-xs);
    transition: border-color .15s var(--ease), box-shadow .15s var(--ease), transform .15s var(--ease);
}

.scenario-cards a:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.scenario-cards b {
    color: var(--text-strong);
    font-size: 15px;
    font-weight: 600;
}

.scenario-cards span {
    margin-top: 6px;
    color: var(--muted);
    font-size: 12.5px;
}

.paper-link-list {
    padding: 6px 22px 16px;
    gap: 0;
}

.paper-link-list a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line-soft);
    background: transparent;
    border-radius: 0;
    transition: padding .15s var(--ease);
}

.paper-link-list a:hover {
    padding-left: 6px;
    background: transparent;
}

.paper-link-list a:last-child {
    border-bottom: 0;
}

.paper-link-list b {
    color: var(--text-strong);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.6;
}

.paper-link-list a:hover b {
    color: var(--primary);
}

.paper-link-list span {
    margin-top: 4px;
    color: var(--muted);
    font-size: 12px;
}

.type-stat-grid a {
    padding: 22px 16px;
    border-right: 1px solid var(--line-soft);
    transition: background .15s var(--ease);
}

.type-stat-grid a:hover {
    background: var(--primary-tint);
}

.type-stat-grid b {
    color: var(--primary);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -.02em;
}

.type-stat-grid span {
    margin-top: 6px;
    color: var(--muted);
    font-size: 12.5px;
}
/* ---- 12. Selection sidebar, taxonomy tabs, tree ---- */
.crumbs {
    margin: 4px 0 14px;
    color: var(--muted);
    font-size: 12.5px;
    gap: 6px;
}

.crumbs a {
    color: var(--muted);
    transition: color .15s var(--ease);
}

.crumbs a:hover {
    color: var(--primary);
}

.crumbs b {
    color: var(--text-strong);
    font-weight: 600;
}

.crumbs span {
    color: var(--subtle);
}

.selection-shell {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 14px;
}

.selection-sidebar {
    overflow: hidden;
    padding: 0;
}

.sidebar-head {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line-soft);
    background: linear-gradient(180deg, #fff, #fbfcfe);
}

.sidebar-head h1 {
    margin: 0;
    color: var(--text-strong);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -.005em;
}

.sidebar-head p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 12.5px;
}

.basket-mini {
    min-height: 32px;
    padding: 0 12px;
    border: 1px solid var(--primary-soft);
    border-radius: var(--radius-pill);
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 12.5px;
    font-weight: 600;
    box-shadow: none;
}

.basket-mini b {
    min-width: 20px;
    height: 20px;
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
}

.taxonomy-tabs {
    padding: 12px;
    gap: 8px;
    background: transparent;
    border: 0;
    border-radius: 0;
}

.taxonomy-tabs a {
    min-height: 34px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
    transition: border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease);
}

.taxonomy-tabs a:hover {
    border-color: var(--primary-soft);
    background: var(--primary-tint);
    color: var(--primary);
}

.taxonomy-tabs a.is-active {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 600;
    box-shadow: none;
}
/* ---- 13. Tree panel, catalog tree, directory tools ---- */
.tree-panel {
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
}

.tree-panel__title {
    min-height: 44px;
    padding: 12px 18px;
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
    background: var(--surface-soft);
}

.tree-panel__title b {
    color: var(--text-strong);
    font-size: 13.5px;
    font-weight: 600;
}

.tree-panel__title a,
.link-tool {
    color: var(--primary);
    font-size: 12px;
    font-weight: 500;
}

.directory-tools {
    padding: 10px 14px;
    gap: 8px;
}

.directory-tools input {
    min-height: 32px;
    border-radius: 8px;
    font-size: 13px;
    padding: 4px 12px;
}

.link-tool {
    min-height: 28px;
    padding: 0 8px;
    border: 1px solid transparent;
    border-radius: 6px;
    background: transparent;
    transition: background .15s var(--ease), color .15s var(--ease);
}

.link-tool:hover {
    background: var(--primary-tint);
    color: var(--primary-dark);
}

.tree-list {
    padding: 6px 8px 14px;
    scrollbar-color: #c8d2e0 transparent;
}

.tree-list::-webkit-scrollbar {
    width: 6px;
}

.tree-list::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: #c8d2e0;
}

.catalog-tree__children {
    margin-left: 14px;
    padding-left: 10px;
    border-left: 1px dotted var(--line-strong);
}

.catalog-tree__summary {
    border-radius: 8px;
}

.catalog-tree__link,
.catalog-tree__label {
    min-height: 32px;
    padding: 6px 10px;
    border-radius: 8px;
    color: #3a4659;
    font-size: 13px;
    font-weight: 500;
    transition: background .12s var(--ease), color .12s var(--ease);
}

.catalog-tree__label {
    color: var(--muted);
    font-weight: 600;
}

.catalog-tree__link:hover {
    background-color: var(--primary-tint) !important;
    background-image: none !important;
    color: var(--primary) !important;
}

.catalog-tree__link.is-active {
    background-color: var(--primary-soft) !important;
    background-image: none !important;
    color: var(--primary-dark) !important;
    font-weight: 600;
    box-shadow: inset 3px 0 0 var(--primary), 0 1px 4px rgba(37, 99, 235, .08);
}

.catalog-tree__link em,
.catalog-tree__label em {
    color: var(--subtle);
    font-size: 11px;
    font-weight: 500;
}
/* ---- 14. Filter panel, chips, more-filter, search ---- */
.filter-panel--bar {
    overflow: hidden;
    background: #fff;
}

.filter-title {
    padding: 16px 20px;
    border-bottom: 1px solid var(--line-soft);
    background: linear-gradient(180deg, #fff, #fbfcfe);
}

.filter-title b {
    color: var(--text-strong);
    font-size: 16px;
    font-weight: 600;
}

.filter-title span {
    color: var(--muted);
    font-size: 12.5px;
}

.filter-context {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 14px;
    padding: 12px 20px 14px;
    border-bottom: 1px solid var(--line-soft);
    background: #f8fbff;
}

.filter-context__item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #5e6c84;
    font-size: 12.5px;
}

.filter-context__item b {
    color: #16325c;
    font-size: 13px;
    font-weight: 700;
}

.filter-context__link {
    margin-left: auto;
    color: var(--primary);
    font-size: 12.5px;
    font-weight: 600;
}

.filter-context__link:hover {
    text-decoration: underline;
}

.filter-row {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 14px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--line-soft);
    border-top: 0;
    background: transparent;
}

.filter-row__label {
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
    line-height: 30px;
}

.filter-row__label small {
    color: var(--subtle);
    font-size: 11px;
    font-weight: 500;
}

.filter-row--stacked {
    grid-template-columns: 1fr;
    gap: 10px;
    align-items: start;
}

.filter-chips {
    gap: 6px 8px;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
}

.filter-grid__item {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 10px;
    border: 1px solid #d7e2f0;
    border-radius: 10px;
    background: #fff;
    color: #334155;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    line-height: 1.35;
    transition: border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease), box-shadow .15s var(--ease);
}

a.filter-grid__item:hover {
    border-color: #b8cdf8;
    background: #f5f9ff;
    color: #1d4ed8;
}

.filter-grid__item.is-active {
    border-color: #6ea8ff;
    background: #edf4ff;
    color: #1955c6;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .72);
    font-weight: 700;
}

.filter-panel .filter-chip,
.filter-panel--bar .filter-chip,
.paper-filter .filter-chip,
.filter-chip {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center;
    min-height: 30px !important;
    padding: 4px 12px !important;
    border: 1px solid transparent !important;
    border-radius: 8px !important;
    background-color: transparent !important;
    background-image: none !important;
    color: #3a4659 !important;
    font-size: 13px;
    font-weight: 500 !important;
    line-height: 22px !important;
    box-shadow: none !important;
    transition: background .15s var(--ease), color .15s var(--ease), border-color .15s var(--ease);
}

.filter-panel .filter-chip:hover,
.filter-panel--bar .filter-chip:hover,
.paper-filter .filter-chip:hover,
.filter-chip:hover {
    border-color: transparent !important;
    background-color: var(--primary-tint) !important;
    color: var(--primary) !important;
}

.filter-panel .filter-chip.is-active,
.filter-panel--bar .filter-chip.is-active,
.paper-filter .filter-chip.is-active,
.filter-chip.is-active {
    border-color: transparent !important;
    background-color: var(--primary) !important;
    background-image: none !important;
    color: #fff !important;
    font-weight: 600 !important;
    box-shadow: 0 2px 6px rgba(37, 99, 235, .22) !important;
}

.more-filter {
    border-top: 1px solid var(--line-soft);
    border-bottom: 0;
}

.more-filter summary {
    min-height: 40px;
    padding: 10px 20px;
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
}

.more-filter summary::before {
    color: var(--primary);
}

.more-filter summary span {
    color: var(--subtle);
    font-size: 11.5px;
}

.filter-search {
    padding: 14px 20px 18px;
    background: var(--surface-soft);
    border-top: 1px solid var(--line-soft);
}

.filter-search input {
    border-radius: 8px;
}

.filter-search label {
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}
/* ---- 15. Result toolbar, active filter bar, sort link ---- */
.result-toolbar {
    margin: 0 0 12px;
    padding: 12px 18px;
    background: #fff;
    backdrop-filter: none;
    box-shadow: var(--shadow-xs);
}

.result-toolbar b {
    margin: 0 4px;
    color: var(--primary);
    font-size: 17px;
    font-weight: 700;
}

.toolbar-label {
    color: var(--muted);
    font-size: 13px;
}

.toolbar-current {
    margin-left: 8px;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
}

.toolbar-actions {
    gap: 6px;
}

.sort-link {
    min-height: 30px;
    padding: 4px 10px;
    border-radius: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
    transition: background .15s var(--ease), color .15s var(--ease);
}

.sort-link:hover {
    background: var(--primary-tint);
    color: var(--primary);
}

.sort-link.is-active {
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 600;
}

.active-filter-bar {
    margin: 0 0 12px;
    padding: 10px 16px;
    border: 1px solid #f4dcc4;
    border-radius: var(--radius);
    background: linear-gradient(180deg, #fff9f1, #fffbf5);
    box-shadow: var(--shadow-xs);
}

.active-filter-bar > span {
    color: var(--accent);
    font-size: 12.5px;
    font-weight: 600;
}

.active-filter-bar > div {
    gap: 6px;
}

.active-filter-bar a {
    min-height: 26px;
    padding: 2px 10px;
    border: 1px solid #f0d3b3;
    border-radius: var(--radius-pill);
    background: #fff;
    color: var(--accent);
    font-size: 12px;
    font-weight: 500;
    box-shadow: none;
    transition: background .15s var(--ease), border-color .15s var(--ease);
}

.active-filter-bar a:hover {
    background: var(--accent-soft);
    border-color: #e8c190;
}

.active-filter-bar a::after {
    content: " ×";
    margin-left: 4px;
    color: var(--subtle);
}

.active-filter-clear {
    color: var(--danger) !important;
    border-color: #f4c4be !important;
}

.active-filter-clear::after {
    display: none;
}
/* ---- 16. Question card — refined, no rainbow gradient bar ---- */
.question-list,
.paper-list {
    gap: 12px;
}

.question-card {
    position: relative;
    padding: 0;
    overflow: hidden;
    border-color: var(--line);
    transform: none;
}

.question-card::before {
    display: none !important;
}

.question-card:hover {
    border-color: #c5d2e8;
    box-shadow: var(--shadow-md);
    transform: none;
}

.question-card__topline {
    padding: 12px 20px;
    border-bottom: 1px solid var(--line-soft);
    background: var(--surface-soft);
    background-image: none;
}

.question-card__source {
    color: var(--text-strong);
    font-weight: 600;
    font-size: 13px;
}

.question-card__source a {
    color: var(--primary);
}

.question-card__source em {
    color: var(--subtle);
    font-size: 12px;
    font-weight: 500;
}

.question-card__meta {
    gap: 6px;
}

.question-card__meta span {
    min-height: 22px;
    padding: 0 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: #fff;
    color: var(--muted);
    font-size: 11.5px;
    font-weight: 500;
}

.question-card__bodyline {
    padding: 18px 20px 12px;
    gap: 12px;
}

.question-card__number {
    width: 30px;
    height: 30px;
    min-width: 30px;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
}

.question-card__stem {
    color: var(--text);
    font-size: 14.5px;
    line-height: 1.85;
}

.question-card__options {
    gap: 8px 14px;
    margin-top: 12px;
}

.question-card__option {
    min-height: 34px;
    padding: 7px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    transition: border-color .15s var(--ease), background .15s var(--ease);
}

.question-card__option:hover {
    border-color: #c5d2e8;
    background: var(--surface-soft);
}

.question-card__option b {
    width: 22px;
    height: 22px;
    min-width: 22px;
    border-radius: 50%;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
}

.question-card__tags {
    margin-top: 12px;
    gap: 6px;
}

.question-card__tags span {
    padding: 3px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 11.5px;
    font-weight: 500;
}
/* ---- 17. Question card answer, footer, actions ---- */
.question-card__answer {
    margin-top: 14px;
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    background: var(--surface-soft);
}

.question-card__answer summary {
    padding: 10px 14px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    transition: color .15s var(--ease);
}

.question-card__answer summary::-webkit-details-marker {
    display: none;
}

.question-card__answer summary::before {
    content: "▸";
    margin-right: 6px;
    color: var(--subtle);
    transition: transform .15s var(--ease);
    display: inline-block;
}

.question-card__answer[open] summary::before {
    content: "▾";
}

.answer-grid {
    grid-template-columns: 1fr 1.4fr;
    gap: 16px;
    padding: 14px;
    border-top: 1px solid var(--line-soft);
    background: #fff;
}

.answer-grid b {
    display: inline-block;
    margin-bottom: 6px;
    padding: 2px 8px;
    border-radius: var(--radius-pill);
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 11.5px;
    font-weight: 600;
}

.question-card__footer {
    padding: 12px 20px;
    background: #fff;
    border-top: 1px solid var(--line-soft);
}

.question-card__footer .muted {
    color: var(--subtle);
    font-size: 12px;
}

.question-card__actions {
    gap: 6px;
}

.question-action {
    min-height: 30px;
    padding: 4px 12px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--muted);
    font-size: 12.5px;
    font-weight: 500;
    transition: background .15s var(--ease), color .15s var(--ease);
}

.question-action:hover,
.question-action.is-favorited {
    background: var(--primary-tint);
    color: var(--primary);
    border: 0;
}

.question-card__actions .btn {
    min-height: 32px;
    padding: 4px 16px;
    border-radius: 8px;
    font-size: 13px;
    min-width: auto;
}

.js-add-basket.is-added,
.btn-primary.js-add-basket.is-added {
    background: var(--accent-soft) !important;
    background-image: none !important;
    border-color: #f0d3b3 !important;
    color: var(--accent) !important;
    box-shadow: none !important;
}

.js-add-basket.is-added:hover,
.btn-primary.js-add-basket.is-added:hover {
    background: #ffefd9 !important;
    border-color: #e8c190 !important;
    color: #8c4607 !important;
}
/* ---- 18. Paper row, paper list, paper sheet preview ---- */
.paper-list {
    gap: 12px;
}

.paper-row {
    padding: 18px 22px;
    border-color: var(--line);
    background: #fff;
    transition: border-color .18s var(--ease), box-shadow .18s var(--ease), transform .18s var(--ease);
}

.paper-row:hover {
    border-color: #c5d2e8;
    box-shadow: var(--shadow-md);
    transform: none;
}

.paper-row__label span {
    padding: 2px 9px;
    border: 1px solid #f0d3b3;
    border-radius: 6px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 11.5px;
    font-weight: 600;
}

.paper-row h2 {
    margin: 8px 0;
    font-size: 16px;
    line-height: 1.6;
}

.paper-row h2 a {
    color: var(--text-strong);
    font-weight: 600;
    transition: color .15s var(--ease);
}

.paper-row h2 a:hover {
    color: var(--primary);
}

.paper-row__meta {
    color: var(--muted);
    font-size: 12.5px;
}

.paper-row__meta span + span::before {
    content: " · ";
    margin-right: 6px;
    color: var(--subtle);
}

.paper-row__tags {
    margin-top: 10px;
    gap: 6px;
}

.paper-row__tags a,
.paper-row__tags span {
    padding: 3px 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 11.5px;
    font-weight: 500;
    transition: background .15s var(--ease), color .15s var(--ease);
}

.paper-row__tags a:hover {
    border-color: var(--primary-soft);
    background: var(--primary-tint);
    color: var(--primary);
}

.paper-row__actions {
    gap: 8px;
}

.paper-row__actions .btn {
    min-height: 32px;
    padding: 4px 16px;
    border-radius: 8px;
    font-size: 13px;
}

.paper-sheet {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    padding: 42px 52px;
    box-shadow: var(--shadow-sm);
}

.paper-sheet header {
    text-align: center;
    border-bottom: 2px solid var(--text-strong);
    padding-bottom: 20px;
    margin-bottom: 24px;
}

.paper-sheet h2 {
    margin: 0 0 8px;
    color: var(--text-strong);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -.01em;
}

.paper-sheet__toolbar {
    margin: 0 0 18px;
    padding: 12px 16px;
    border-radius: 8px;
    background: var(--surface-soft);
    border: 1px solid var(--line-soft);
    color: var(--muted);
    font-size: 13px;
}

.paper-sheet__toolbar a {
    color: var(--primary);
    font-weight: 500;
}

.paper-section-title {
    margin: 16px 0 10px;
    padding: 10px 16px;
    border: 0;
    border-left: 3px solid var(--primary);
    border-radius: 0;
    background: var(--surface-soft);
    color: var(--text-strong);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .01em;
}

.paper-question {
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 16px;
    background: #fff;
    margin-bottom: 12px;
}

.paper-question__head {
    gap: 12px;
}

.paper-score {
    position: absolute;
    right: 12px;
    top: 12px;
    padding: 3px 10px;
    border-radius: 6px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 11.5px;
    font-weight: 600;
}
/* ---- 19. Smart builder, steps, mode tabs, type grid ---- */
.smart-layout {
    grid-template-columns: 420px minmax(0, 1fr);
    gap: 16px;
}

.smart-builder {
    gap: 12px;
}

.smart-step {
    overflow: hidden;
}

.step-mark {
    width: 56px;
    border-right: 1px solid var(--line-soft);
    background: var(--surface-soft);
    color: var(--primary);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .04em;
}

.smart-step__body {
    padding: 18px 20px;
}

.smart-step__body h2 {
    margin: 0 0 14px;
    color: var(--text-strong);
    font-size: 16px;
    font-weight: 600;
}

.smart-step__title {
    gap: 12px;
}

.smart-mode-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-bottom: 14px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
}

.smart-mode-tabs a {
    min-height: 38px;
    border: 0;
    border-right: 1px solid var(--line-soft);
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
    background: transparent;
    transition: background .15s var(--ease), color .15s var(--ease);
}

.smart-mode-tabs a:last-child {
    border-right: 0;
}

.smart-mode-tabs a:hover {
    background: var(--primary-tint);
    color: var(--primary);
}

.smart-mode-tabs a.is-active {
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 600;
    box-shadow: none;
}

.smart-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.smart-grid label,
.paper-settings label {
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

.smart-tree {
    margin-top: 14px;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
}

.type-count-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.type-count-grid label {
    grid-template-columns: minmax(0, 1fr) 80px;
    gap: 8px;
    align-items: center;
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
    transition: border-color .15s var(--ease);
}

.type-count-grid label:hover {
    border-color: var(--primary-soft);
}

.type-count-grid input {
    min-height: 32px;
    border-radius: 6px;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
}

.preset-actions {
    gap: 8px;
}

.preset-actions .btn {
    min-height: 30px;
    padding: 4px 14px;
    border-radius: 6px;
    font-size: 12.5px;
}
/* ---- 20. Smart result, paper editor, paper settings ---- */
.smart-result {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow-xs);
    padding-bottom: 16px;
}

.smart-result .result-toolbar {
    margin: 0;
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    border-radius: var(--radius) var(--radius) 0 0;
    box-shadow: none;
}

.smart-result .question-list,
.smart-result .notice,
.smart-result .empty-state {
    margin: 14px;
}

.paper-editor {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 16px;
}

.paper-settings {
    padding: 20px;
    display: grid;
    gap: 16px;
}

.paper-settings__head {
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line-soft);
}

.paper-settings__head b {
    color: var(--text-strong);
    font-size: 16px;
    font-weight: 600;
}

.paper-settings__head span {
    color: var(--muted);
    font-size: 12.5px;
}

.paper-settings__head strong {
    color: var(--danger);
    font-size: 16px;
    font-weight: 700;
}

.paper-settings__actions {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.paper-settings__actions .btn {
    min-height: 36px;
    border-radius: 8px;
}

.paper-view {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 14px;
}

.paper-outline {
    position: sticky;
    top: 14px;
    padding: 18px;
}

.paper-outline h2,
.side-panel h2 {
    margin: 0 0 14px;
    color: var(--text-strong);
    font-size: 16px;
    font-weight: 600;
}

.paper-question-list {
    gap: 14px;
}

.paper-question-item {
    position: relative;
}
/* ---- 21. Detail layout, question detail, side panel, info list ---- */
.detail-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 16px;
}

.question-detail {
    padding: 24px;
}

.question-detail .detail-section {
    border-top: 1px solid var(--line-soft);
    margin-top: 22px;
    padding-top: 22px;
}

.detail-section h2 {
    margin: 0 0 14px;
    color: var(--text-strong);
    font-size: 16px;
    font-weight: 600;
}

.detail-section--answer {
    border: 1px solid var(--line-soft);
    border-radius: 10px;
    background: var(--surface-soft);
    padding: 18px;
}

.detail-side {
    gap: 14px;
}

.side-panel {
    padding: 20px;
}

.info-list {
    gap: 0;
    margin: 0;
}

.info-list div {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--line-soft);
}

.info-list div:last-child {
    border-bottom: 0;
}

.info-list dt {
    color: var(--muted);
    font-size: 12.5px;
    font-weight: 600;
}

.info-list dd {
    margin: 0;
    color: var(--text);
    font-size: 14px;
}

.side-tag-list {
    gap: 6px;
    margin-top: 14px;
}

.side-tag-list a {
    padding: 4px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: var(--surface-soft);
    color: var(--primary);
    font-size: 12px;
    font-weight: 500;
    transition: background .15s var(--ease), border-color .15s var(--ease);
}

.side-tag-list a:hover {
    background: var(--primary-soft);
    border-color: var(--primary-soft);
}

.entry-list {
    gap: 8px;
}

.entry-list a {
    padding: 12px;
    border-radius: 8px;
    background: var(--surface-soft);
    border: 1px solid transparent;
    transition: background .15s var(--ease), border-color .15s var(--ease);
}

.entry-list a:hover {
    border-color: var(--primary-soft);
    background: var(--primary-tint);
}

.entry-list b {
    color: var(--text-strong);
    font-size: 14px;
    font-weight: 600;
}

.entry-list span {
    color: var(--muted);
    font-size: 12.5px;
}
/* ---- 22. Basket dock, member auth, membership ---- */
.basket-dock {
    position: sticky;
    top: 14px;
    padding: 20px;
    display: grid;
    gap: 14px;
}

.basket-dock h2 {
    margin: 0;
    color: var(--text-strong);
    font-size: 16px;
    font-weight: 600;
}

.basket-dock p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.basket-dock .btn {
    min-height: 38px;
    border-radius: 8px;
}

.member-auth {
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 18px;
}

.member-auth__intro {
    min-height: 430px;
    padding: 54px 50px;
    border-radius: var(--radius-lg);
    background: linear-gradient(115deg, #fff9f0 0%, #f4f7fd 60%, #ffffff 100%);
    border: 1px solid var(--line);
}

.member-auth__intro h1 {
    margin: 14px 0;
    color: var(--text-strong);
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
}

.member-auth__intro p {
    margin: 0 0 24px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.7;
    max-width: 540px;
}

.member-auth__intro span {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.member-auth__benefits {
    margin-top: 24px;
    padding: 18px 20px;
    border-left: 3px solid var(--primary);
    background: var(--surface-soft);
    border-radius: 8px;
}

.member-auth__benefits b {
    display: block;
    margin-bottom: 8px;
    color: var(--text-strong);
    font-size: 14px;
    font-weight: 600;
}

.member-auth__benefits span {
    display: block;
    margin: 0;
    padding: 0;
    background: transparent;
    color: var(--muted);
    font-size: 13px;
}

.member-auth__form {
    padding: 32px 28px;
    display: grid;
    gap: 16px;
}

.member-auth__form h2 {
    margin: 0 0 8px;
    color: var(--text-strong);
    font-size: 20px;
    font-weight: 700;
}

.member-auth__form p {
    margin: 0 0 20px;
    color: var(--muted);
    font-size: 13px;
}

.member-auth__form label {
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

.member-auth__form input {
    min-height: 42px;
    padding: 10px 14px;
}

.member-auth__form .btn {
    min-height: 44px;
    border-radius: 8px;
    font-size: 14px;
}

.member-auth__links {
    gap: 16px;
    justify-content: center;
}

.member-auth__links a {
    color: var(--primary);
    font-size: 13px;
    font-weight: 500;
}

.member-auth__links a:hover {
    color: var(--primary-dark);
}

.member-hero {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 20px;
    margin-bottom: 18px;
    padding: 36px 40px;
    border-radius: var(--radius-lg);
    background: linear-gradient(115deg, #fff9f0 0%, #f4f7fd 60%, #ffffff 100%);
    border: 1px solid var(--line);
}

.member-hero h1 {
    margin: 14px 0;
    color: var(--text-strong);
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
}

.member-hero p {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.7;
    max-width: 520px;
}

.member-hero span {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
}

.member-hero__status {
    padding: 20px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.member-hero__status b {
    color: var(--primary);
    font-size: 20px;
    font-weight: 700;
}

.member-hero__status span {
    display: inline-flex;
    padding: 0;
    margin: 0;
    background: transparent;
    color: var(--muted);
    font-size: 13px;
}

.membership-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 18px;
}

.membership-plans {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.membership-plan {
    position: relative;
    padding: 28px 24px;
    display: grid;
    gap: 16px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.membership-plan:hover {
    border-color: var(--primary-soft);
    box-shadow: var(--shadow-md);
}

.membership-plan.is-recommended {
    border-color: var(--primary);
    box-shadow: var(--shadow-md), 0 0 0 2px var(--primary-soft);
}

.membership-plan::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius) var(--radius) 0 0;
}

.membership-plan.is-recommended::after {
    background: linear-gradient(90deg, var(--accent), #d46a1a);
}

.plan-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .02em;
}

.membership-plan h2 {
    margin: 0;
    color: var(--text-strong);
    font-size: 18px;
    font-weight: 700;
}

.membership-plan__icon {
    width: 52px;
    height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--primary-soft);
    color: var(--primary);
}

.membership-plan__icon .icon {
    width: 24px;
    height: 24px;
}

.membership-plan p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.6;
}

.plan-price {
    align-items: baseline;
    gap: 10px;
}

.plan-price b {
    color: var(--primary);
    font-size: 36px;
    font-weight: 700;
    line-height: 1;
}

.plan-price small {
    color: var(--muted);
    font-size: 13px;
}

.plan-price del {
    color: var(--subtle);
    font-size: 14px;
}

.membership-plan ul {
    margin: 0;
    padding: 0;
    list-style: none;
    gap: 8px;
}

.membership-plan li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px;
    align-items: start;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.6;
}

.membership-plan li::before {
    content: "✓";
    color: var(--success);
    font-weight: 700;
}

.membership-plan .btn {
    min-height: 42px;
    border-radius: 8px;
}

.member-rules {
    padding: 24px;
    display: grid;
    gap: 14px;
}

.member-rules h2 {
    margin: 0 0 4px;
    color: var(--text-strong);
    font-size: 16px;
    font-weight: 600;
}

.member-rules div {
    padding-top: 14px;
    border-top: 1px solid var(--line-soft);
    display: grid;
    gap: 4px;
}

.member-rules div:first-of-type {
    padding-top: 0;
    border-top: 0;
}

.member-rules b {
    color: var(--text-strong);
    font-size: 14px;
    font-weight: 600;
}

.member-rules span {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.6;
}

.member-center {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 18px;
}

.member-profile {
    position: sticky;
    top: 14px;
    padding: 28px 24px;
    display: grid;
    gap: 14px;
    text-align: center;
}

.member-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-soft), var(--primary-tint));
    color: var(--primary);
    font-size: 32px;
    font-weight: 700;
    display: grid;
    place-items: center;
    box-shadow: var(--shadow-md);
}

.member-profile h1 {
    margin: 0;
    color: var(--text-strong);
    font-size: 18px;
    font-weight: 700;
}

.member-profile p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.member-level {
    display: inline-flex;
    justify-content: center;
    padding: 4px 14px;
    border-radius: var(--radius-pill);
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
}

.member-level.is-vip {
    background: var(--primary);
    color: #fff;
}

.member-profile .btn {
    min-height: 36px;
    border-radius: 8px;
}

.member-dashboard {
    gap: 16px;
}

.member-summary {
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.member-summary article {
    padding: 20px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.member-summary article:hover {
    border-color: var(--primary-soft);
    box-shadow: var(--shadow-sm);
}

.member-summary b {
    display: block;
    margin-top: 8px;
    color: var(--primary);
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
}

.member-summary span {
    color: var(--muted);
    font-size: 12.5px;
}

.member-quick {
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.member-quick a {
    padding: 18px 16px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    transition: border-color .15s var(--ease), box-shadow .15s var(--ease), transform .15s var(--ease);
}

.member-quick a:hover {
    border-color: var(--primary-soft);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.member-quick b {
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
}

.member-quick span {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 12px;
}

.member-columns {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.member-list {
    padding: 8px 18px 16px;
}

.member-list a {
    display: grid;
    gap: 4px;
    padding: 14px 12px;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 6px;
    transition: background .15s var(--ease);
}

.member-list a:hover {
    background: var(--surface-soft);
}

.member-list a:last-child {
    border-bottom: 0;
}

.member-list b {
    color: var(--text-strong);
    font-size: 14px;
    font-weight: 500;
}

.member-list span {
    color: var(--muted);
    font-size: 12.5px;
}
/* ---- 23. Admin panel, data tables, status pills ---- */
.admin-body {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    min-height: 100dvh;
    background: var(--bg);
}

.admin-sidebar {
    position: sticky;
    top: 0;
    height: 100dvh;
    padding: 24px 18px;
    background: linear-gradient(180deg, #1a2332 0%, #0f1620 100%);
    color: #fff;
    overflow-y: auto;
}

.admin-brand {
    margin-bottom: 32px;
    padding: 0 8px;
}

.admin-brand b {
    display: block;
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -.01em;
}

.admin-brand small {
    display: block;
    margin-top: 4px;
    color: rgba(255, 255, 255, .5);
    font-size: 12px;
}

.admin-sidebar nav {
    display: grid;
    gap: 2px;
}

.admin-sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: rgba(255, 255, 255, .75);
    font-size: 13.5px;
    font-weight: 500;
    transition: background .15s var(--ease), color .15s var(--ease);
}

.admin-sidebar nav a:hover {
    background: rgba(255, 255, 255, .08);
    color: #fff;
}

.admin-sidebar nav a.is-active {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}

.admin-main {
    padding: 32px 36px;
    background: var(--bg);
}

.admin-page-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
    padding: 24px 28px;
}

.admin-page-title h1 {
    margin: 0 0 6px;
    color: var(--text-strong);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -.015em;
}

.admin-page-title p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.admin-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.admin-stat-grid article {
    padding: 20px;
    display: grid;
    gap: 4px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.admin-stat-grid article:hover {
    border-color: var(--primary-soft);
    box-shadow: var(--shadow-sm);
}

.admin-stat-grid b {
    color: var(--primary);
    font-size: 28px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -.02em;
}

.admin-stat-grid span {
    color: var(--muted);
    font-size: 12.5px;
}

.table-panel,
.import-panel {
    padding: 24px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-xs);
}

.import-panel {
    display: grid;
    grid-template-columns: minmax(260px, .75fr) minmax(300px, 1fr);
    gap: 28px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.data-table th {
    padding: 12px 14px;
    text-align: left;
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    border-bottom: 1px solid var(--line-soft);
}

.data-table th:first-child {
    border-top-left-radius: 8px;
}

.data-table th:last-child {
    border-top-right-radius: 8px;
}

.data-table td {
    padding: 14px;
    color: var(--text);
    border-bottom: 1px solid var(--line-soft);
    vertical-align: middle;
}

.data-table tr:last-child td {
    border-bottom: 0;
}

.data-table tr:hover td {
    background: var(--surface-soft);
}

.data-table .btn {
    min-height: 30px;
    padding: 4px 12px;
    font-size: 12.5px;
    border-radius: 6px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 11.5px;
    font-weight: 600;
    border: 1px solid transparent;
}

.status-pill--enabled {
    background: #ecfdf5;
    color: var(--success);
    border-color: #d1fae5;
}

.status-pill--pending {
    background: #fef3c7;
    color: #92400e;
    border-color: #fde68a;
}

.status-pill--disabled {
    background: #fef2f2;
    color: var(--danger);
    border-color: #fecaca;
}

.mapping-table {
    min-width: 1000px;
}

.mapping-table td {
    vertical-align: top;
    padding: 16px;
}

.mapping-path {
    max-width: 340px;
    margin: 4px 0 8px;
    color: var(--text);
    font-size: 13px;
    line-height: 1.6;
    word-break: break-word;
}

.mapping-form {
    min-width: 400px;
    gap: 10px;
}

.mapping-form textarea {
    min-height: 80px;
    font-size: 13px;
    line-height: 1.6;
}

.mapping-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.admin-toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 16px;
}

.admin-toolbar .btn {
    min-height: 36px;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 13px;
}

.admin-toolbar input,
.admin-toolbar select {
    min-height: 36px;
    padding: 6px 12px;
    font-size: 13px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.question-form {
    padding: 24px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-xs);
    display: grid;
    gap: 16px;
}

.check-line {
    display: flex;
    align-items: center;
    gap: 8px;
}

.check-line input {
    width: auto;
    min-height: auto;
}
/* ---- 24. Notices, pagination, empty states, login ---- */
.notice {
    padding: 14px 18px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    font-size: 13px;
    line-height: 1.6;
}

.notice-success {
    background: #ecfdf5;
    border-color: #d1fae5;
    color: #065f46;
}

.notice-warning {
    background: #fef3c7;
    border-color: #fde68a;
    color: #92400e;
}

.notice-info {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.pagination a,
.pagination span {
    min-width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 10px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
    transition: border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease);
}

.pagination a:hover {
    border-color: var(--primary-soft);
    background: var(--primary-tint);
    color: var(--primary);
}

.pagination .active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    font-weight: 600;
}

.empty-state {
    padding: 48px 24px;
    text-align: center;
    border-radius: var(--radius);
    background: var(--surface-soft);
    border: 1px dashed var(--line-strong);
}

.empty-state b {
    display: block;
    margin-bottom: 8px;
    color: var(--text-strong);
    font-size: 15px;
    font-weight: 600;
}

.empty-state span {
    color: var(--muted);
    font-size: 13px;
}

.login-container {
    min-height: 100dvh;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--primary-tint) 0%, var(--bg) 50%, var(--accent-soft) 100%);
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    padding: 40px 36px;
    border-radius: var(--radius-lg);
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
}

.login-card h1 {
    margin: 0 0 8px;
    color: var(--text-strong);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -.015em;
}

.login-card p {
    margin: 0 0 28px;
    color: var(--muted);
    font-size: 13px;
}

.login-card form {
    display: grid;
    gap: 16px;
}

.login-card label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

.login-card input {
    min-height: 44px;
    padding: 10px 14px;
}

.login-card .btn {
    min-height: 44px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
}

.login-card a {
    display: block;
    text-align: center;
    margin-top: 16px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 500;
}

.login-card a:hover {
    color: var(--primary-dark);
}
/* ---- 25. Toast, site footer, misc utilities ---- */
.toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    padding: 12px 24px;
    border-radius: 10px;
    background: var(--text-strong);
    color: #fff;
    font-size: 13.5px;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s var(--ease), transform .2s var(--ease);
    z-index: 9999;
    box-shadow: var(--shadow-lg);
}

.toast.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.site-footer {
    margin-top: 40px;
    padding: 20px 0;
    border-top: 1px solid var(--line);
    background: #fff;
    color: var(--muted);
    font-size: 13px;
}

.site-footer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 40px;
    gap: 16px;
}

.site-footer span + span {
    color: var(--subtle);
}

.site-footer__links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 14px;
    flex-wrap: wrap;
}

.site-footer__links a {
    color: inherit;
}

.site-footer__links a:hover {
    color: var(--primary);
}

.site-settings-form {
    display: grid;
    gap: 16px;
}

.setting-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.setting-grid label {
    display: grid;
    gap: 8px;
    color: var(--text-strong);
    font-size: 13px;
    font-weight: 600;
}

.setting-grid input,
.setting-grid textarea {
    width: 100%;
}

.setting-grid textarea {
    min-height: 110px;
}

.setting-grid__wide {
    grid-column: 1 / -1;
}

.site-settings-actions {
    justify-content: flex-end;
    padding: 4px 0 0;
}

@media (max-width: 720px) {
    .setting-grid {
        grid-template-columns: 1fr;
    }

    .site-footer .container,
    .site-footer__links {
        justify-content: flex-start;
    }
}

.code-block {
    padding: 20px;
    border-radius: var(--radius);
    background: #0f1620;
    color: #f1f5f9;
    font-family: "SF Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;
    font-size: 13px;
    line-height: 1.7;
    overflow-x: auto;
    white-space: pre;
    border: 1px solid rgba(255, 255, 255, .08);
}

.title-actions,
.form-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.tool-title,
.page-title,
.admin-page-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 20px;
    padding: 22px 26px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-xs);
}

.tool-title h1,
.page-title h1 {
    margin: 0;
    color: var(--text-strong);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -.01em;
}

.tool-title p,
.page-title p {
    margin: 5px 0 0;
    color: var(--muted);
    font-size: 13px;
}

/* ---- Responsive refinements ---- */
@media (max-width: 1180px) {
    .home-portal {
        grid-template-columns: 1fr;
    }

    .home-side {
        grid-template-columns: repeat(3, 1fr);
    }

    .selection-shell {
        grid-template-columns: 1fr;
    }

    .selection-sidebar,
    .filter-panel,
    .detail-side,
    .paper-settings,
    .paper-outline,
    .basket-dock,
    .smart-builder {
        position: static;
    }

    .brand-search {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .search-shortcuts {
        position: static;
    }

    .header-tools {
        justify-content: flex-start;
    }

    .smart-layout,
    .paper-editor,
    .paper-view,
    .detail-layout,
    .member-center {
        grid-template-columns: 1fr;
    }

    .member-auth {
        grid-template-columns: 1fr;
    }

    .workflow-nav__inner {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .workflow-subject-nav {
        flex-basis: auto;
    }
}

@media (max-width: 860px) {
    .home-side {
        grid-template-columns: repeat(2, 1fr);
    }

    .scenario-cards,
    .workbench-strip,
    .type-stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .question-card__options,
    .smart-grid,
    .type-count-grid,
    .filter-row,
    .filter-search,
    .active-filter-bar,
    .directory-tools {
        grid-template-columns: 1fr;
    }

    .float-tools {
        display: none;
    }

    .admin-body {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: static;
        height: auto;
    }

    .admin-main {
        padding: 16px;
    }

    .membership-plans {
        grid-template-columns: repeat(2, 1fr);
    }

    .member-summary,
    .member-quick {
        grid-template-columns: repeat(2, 1fr);
    }

    .workflow-subject-nav__panel {
        width: min(100vw - 24px, 320px);
    }

    .workflow-subject-nav__stage-list,
    .workflow-subject-nav__subject-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .container,
    .site-main {
        width: min(100% - 20px, 1200px);
    }

    .home-side,
    .home-content-grid,
    .membership-layout {
        grid-template-columns: 1fr;
    }

    .home-banner {
        padding: 28px 20px;
    }

    .home-banner h1 {
        font-size: 26px;
    }

    .scenario-cards,
    .workbench-strip,
    .type-stat-grid,
    .member-summary,
    .member-quick,
    .membership-plans,
    .home-stats {
        grid-template-columns: 1fr;
    }

    .paper-sheet {
        padding: 18px;
    }
}
/* END OF MATURE PLATFORM POLISH 2026 */

/* FINAL STATE GUARD 2026-06-22 */
.filter-panel .filter-chip,
.filter-panel--bar .filter-chip,
.paper-filter .filter-chip,
.filter-chip {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center;
    width: auto !important;
    min-width: auto !important;
    min-height: 30px !important;
    padding: 0 12px !important;
    border: 1px solid transparent !important;
    border-radius: 999px !important;
    background-color: transparent !important;
    background-image: none !important;
    color: #334155 !important;
    font-weight: 500 !important;
    line-height: 28px !important;
    box-shadow: none !important;
}

.filter-panel--bar .filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
}

.filter-panel .filter-chip:hover,
.filter-panel--bar .filter-chip:hover,
.paper-filter .filter-chip:hover,
.filter-chip:hover {
    border-color: #cfe0ff !important;
    background-color: #f4f8ff !important;
    background-image: none !important;
    color: #2563eb !important;
}

.filter-panel .filter-chip.is-active,
.filter-panel--bar .filter-chip.is-active,
.paper-filter .filter-chip.is-active,
.filter-chip.is-active {
    border-color: #abc8ff !important;
    background-color: #eef6ff !important;
    background-image: none !important;
    color: #1554bd !important;
    font-weight: 800 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .72) !important;
}

.js-add-basket.is-added,
.btn-primary.js-add-basket.is-added {
    border-color: #fdba74 !important;
    background-color: #fff7ed !important;
    background-image: none !important;
    color: #9a3412 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .75), 0 8px 18px rgba(197, 106, 18, .08) !important;
}

.js-add-basket.is-added:hover,
.btn-primary.js-add-basket.is-added:hover {
    border-color: #fb923c !important;
    background-color: #ffedd5 !important;
    color: #7c2d12 !important;
}

/* FINAL FILTER/NAV LAYOUT GUARD 2026-06-22 */
.portal-header,
.workflow-nav,
.workflow-nav__inner,
.workflow-subject-nav,
.workflow-subject-nav__panel,
.selection-shell,
.selection-sidebar,
.selection-main,
.filter-panel,
.filter-panel--bar,
.result-toolbar,
.question-list,
.grade-picker {
    overflow: visible !important;
}

.portal-header {
    position: relative;
    z-index: 11900;
}

.workflow-nav {
    position: relative;
    z-index: 12000;
}

.workflow-nav__inner {
    position: relative;
    z-index: 12001;
}

.workflow-subject-nav {
    position: relative !important;
    z-index: 12100 !important;
    flex: 0 0 198px;
}

.workflow-subject-nav__button {
    cursor: pointer;
}

.workflow-subject-nav__panel {
    width: 420px !important;
    top: calc(100% - 1px) !important;
    left: 0 !important;
    z-index: 12200 !important;
    box-shadow: 0 22px 44px rgba(15, 23, 42, .16) !important;
}

.selection-shell {
    display: grid;
    grid-template-columns: 286px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    position: relative !important;
}

.selection-sidebar {
    top: 16px;
    position: sticky !important;
    z-index: 9000 !important;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06);
}

.selection-main,
.filter-panel,
.filter-panel--bar,
.result-toolbar,
.question-list {
    position: relative;
    z-index: 1;
}

.selection-main {
    display: grid;
    gap: 14px;
}

.tree-panel--catalog,
.filter-panel--bar,
.active-filter-bar,
.result-toolbar {
    border-radius: 14px !important;
    background: #fff !important;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .06) !important;
    border: 1px solid #e8eef6 !important;
}

.filter-panel--bar {
    overflow: visible !important;
}

.filter-panel--bar form {
    display: grid;
    gap: 0;
}

.filter-title {
    padding: 16px 20px !important;
    border-bottom: 1px solid #edf2f7 !important;
}

.filter-title b {
    font-size: 18px;
    color: #1e293b;
}

.filter-context {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 12px;
    padding: 12px 20px 4px;
}

.filter-context__item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: #f8fbff;
    color: #64748b;
    font-size: 12.5px;
}

.filter-context__item b {
    color: #1e3a8a;
    font-weight: 700;
}

.filter-context__link {
    margin-left: auto;
    color: #2563eb;
    font-size: 13px;
    font-weight: 600;
}

.filter-row {
    grid-template-columns: 72px minmax(0, 1fr) !important;
    gap: 12px !important;
    padding: 10px 20px !important;
    border-top: 1px solid #f1f5f9;
}

.filter-row--stacked {
    align-items: start;
}

.filter-row__label {
    padding-top: 7px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.filter-row__label small {
    color: #94a3b8;
    font-size: 12px;
    font-weight: 500;
}

.filter-grid {
    grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)) !important;
    gap: 8px !important;
}

.filter-grid__item {
    justify-content: flex-start;
    min-height: 32px !important;
    padding: 6px 10px !important;
    border-radius: 9px !important;
    font-size: 12.5px !important;
}

.filter-grid__item.is-active {
    border-color: #8fb8ff !important;
    background: #eef5ff !important;
    color: #1d4ed8 !important;
}

.more-filter {
    margin: 6px 20px 0;
    border-top: 1px dashed #e2e8f0;
    padding-top: 10px;
}

.more-filter summary {
    cursor: pointer;
    color: #334155;
    font-size: 13px;
    font-weight: 600;
}

.filter-search {
    align-items: center;
    gap: 12px;
    padding: 14px 20px 18px !important;
    border-top: 1px solid #edf2f7;
}

.active-filter-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    align-items: start;
    padding: 14px 18px !important;
}

.active-filter-bar > span {
    padding-top: 4px;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
}

.active-filter-bar > div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.active-filter-bar a {
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #f3f7ff;
    color: #2b4da1;
    font-size: 12.5px;
}

.active-filter-bar .active-filter-clear {
    background: transparent;
    color: #64748b;
}

.result-toolbar {
    padding: 14px 18px !important;
}

.tree-panel__title {
    padding: 15px 16px 10px !important;
    border-bottom: 1px solid #edf2f7;
}

.tree-panel__title b {
    font-size: 15px;
    color: #1e293b;
}

.directory-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto !important;
    gap: 10px !important;
    padding: 12px 16px !important;
    border-bottom: 1px solid #f1f5f9;
}

.directory-tools input {
    height: 34px;
    border-radius: 9px;
    border: 1px solid #dbe5f1;
    background: #fbfdff;
}

.directory-tools .link-tool {
    min-height: 32px;
    padding: 0 10px;
    border-radius: 8px;
    background: #f8fbff;
    color: #475569;
}

.tree-list--catalog {
    max-height: calc(100vh - 300px);
    padding: 8px 12px 14px !important;
}

.catalog-tree + .catalog-tree {
    margin-top: 2px;
}

.catalog-tree__summary {
    min-height: 34px;
    padding: 0 6px !important;
    border-radius: 9px;
}

.catalog-tree__summary:hover {
    background: #f8fbff !important;
}

.catalog-tree__link,
.catalog-tree__label {
    min-height: 34px !important;
    border-radius: 9px !important;
    padding: 0 10px !important;
    font-size: 13px !important;
}

.catalog-tree__children {
    margin-left: 16px !important;
    padding-left: 10px !important;
    border-left: 1px solid #e8eef6;
}

.catalog-tree__link.is-active {
    background: #eef5ff !important;
    border-color: #9fc0ff !important;
    color: #1d4ed8 !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .8);
}

.catalog-tree__link em,
.catalog-tree__label em {
    color: #94a3b8 !important;
    font-size: 12px !important;
}

.grade-picker {
    position: relative !important;
    z-index: 9100 !important;
    overflow: visible !important;
}

.grade-picker__panel {
    z-index: 9200 !important;
    max-width: calc(100vw - 34px) !important;
}

@media (max-width: 1180px) {
    .selection-shell {
        grid-template-columns: 1fr;
    }

    .selection-sidebar {
        position: relative !important;
        top: 0;
    }
}

@media (max-width: 860px) {
    .workflow-subject-nav {
        flex: 1 1 auto;
    }

    .workflow-subject-nav__panel {
        width: min(100vw - 24px, 360px) !important;
    }

    .active-filter-bar {
        grid-template-columns: 1fr;
    }

    .filter-row {
        grid-template-columns: 1fr !important;
        gap: 8px !important;
    }
}