/* roulang page: index */
:root {
      --ink: #20262d;
      --muted: #6d7780;
      --paper: #f5f7f6;
      --surface: #ffffff;
      --line: #dfe5e2;
      --coral: #e36b52;
      --coral-dark: #b94b38;
      --teal: #177f7a;
      --teal-soft: #dcefeb;
      --lime: #d9e86a;
      --sand: #f1eadc;
      --success: #287e5c;
      --warning: #a87524;
      --radius: 8px;
      --shadow: 0 10px 28px rgba(31, 48, 49, .08);
      --max: 1200px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
    }
    a { color: var(--teal); text-decoration: none; transition: color .2s ease, background .2s ease, transform .2s ease; }
    a:hover { color: var(--coral-dark); }
    img { display: block; max-width: 100%; }
    button, input, textarea, select { font: inherit; }
    button, .button { cursor: pointer; }
    :focus-visible { outline: 3px solid rgba(227,107,82,.38); outline-offset: 3px; }
    .container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
    .topbar { background: var(--ink); color: #dce4e0; font-size: 13px; }
    .topbar .container { min-height: 36px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .topbar a { color: var(--lime); font-weight: 700; }
    .topbar-right { display: flex; gap: 18px; align-items: center; }
    .site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
    .nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
    .brand { color: var(--ink); font-size: 22px; font-weight: 800; letter-spacing: 0; white-space: nowrap; }
    .brand span { color: var(--coral); }
    .main-nav { display: flex; align-items: center; gap: 8px; margin: 0; }
    .main-nav li { list-style: none; }
    .main-nav a { color: var(--muted); padding: 9px 13px; border-radius: 6px; font-weight: 700; }
    .main-nav a:hover, .main-nav a.active { color: var(--ink); background: var(--teal-soft); }
    .nav-action { background: var(--coral) !important; color: #fff !important; }
    .nav-action:hover { background: var(--coral-dark) !important; transform: translateY(-1px); }
    .menu-icon { border-color: var(--line); }
    .menu-icon::after { background: var(--ink); box-shadow: 0 7px 0 var(--ink), 0 14px 0 var(--ink); }
    .hero { background: var(--sand); border-bottom: 1px solid var(--line); padding: 70px 0 50px; }
    .hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 54px; align-items: center; }
    .eyebrow, .section-kicker { color: var(--coral-dark); font-weight: 800; font-size: 13px; letter-spacing: .04em; }
    h1, h2, h3, p { margin-top: 0; }
    h1 { font-size: clamp(38px, 5vw, 68px); line-height: 1.14; margin: 10px 0 22px; max-width: 720px; font-weight: 850; }
    h2 { font-size: clamp(27px, 3vw, 40px); line-height: 1.25; margin-bottom: 12px; }
    h3 { font-size: 20px; line-height: 1.35; margin-bottom: 8px; }
    .hero-copy { color: #4d5a5b; max-width: 660px; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 22px; }
    .button { border-radius: 6px; padding: 12px 19px; font-weight: 800; border: 1px solid transparent; transition: .2s ease; }
    .button.primary { background: var(--coral); color: #fff; }
    .button.primary:hover { background: var(--coral-dark); transform: translateY(-2px); }
    .button.secondary { background: transparent; border-color: #b6c7c1; color: var(--ink); }
    .button.secondary:hover { background: #fff; border-color: var(--teal); }
    .hero-points { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 14px; }
    .hero-points strong { color: var(--teal); margin-right: 4px; }
    .visual-board { min-height: 320px; background: var(--teal); padding: 22px; border-radius: var(--radius); box-shadow: var(--shadow); position: relative; overflow: hidden; }
    .visual-board::before { content: ""; position: absolute; width: 160px; height: 160px; right: -45px; top: -45px; background: var(--lime); border-radius: 50%; }
    .cover-frame { position: relative; min-height: 270px; border: 1px solid rgba(255,255,255,.28); background: #246b69; padding: 22px; display: flex; flex-direction: column; justify-content: space-between; }
    .cover-lines { display: grid; gap: 10px; }
    .cover-lines i { display: block; height: 14px; background: rgba(255,255,255,.72); width: 72%; }
    .cover-lines i:nth-child(2) { width: 48%; background: var(--lime); }
    .cover-lines i:nth-child(3) { width: 62%; }
    .cover-foot { color: #e3f2ed; font-size: 14px; display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.3); padding-top: 14px; }
    .section { padding: 78px 0; }
    .section-head { max-width: 700px; margin-bottom: 30px; }
    .section-head p { color: var(--muted); margin-bottom: 0; }
    .metrics { display: grid; grid-template-columns: 1.2fr .9fr .9fr 1fr; gap: 14px; }
    .metric { background: var(--surface); border: 1px solid var(--line); padding: 24px; border-radius: var(--radius); }
    .metric:first-child { background: var(--ink); color: #fff; }
    .metric-number { display: block; font-size: 35px; font-weight: 850; line-height: 1.1; margin-bottom: 7px; }
    .metric small { color: var(--muted); }
    .metric:first-child small { color: #c9d6d0; }
    .matrix { display: grid; grid-template-columns: .8fr 1.2fr 1fr; gap: 16px; align-items: stretch; }
    .matrix-block { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; min-height: 220px; }
    .matrix-block.featured { background: var(--coral); color: #fff; transform: translateY(18px); }
    .matrix-block.featured p, .matrix-block.featured .muted { color: #fff0eb; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin: 18px 0; }
    .tag { display: inline-flex; padding: 3px 9px; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); font-size: 13px; }
    .featured .tag { border-color: rgba(255,255,255,.5); color: #fff; }
    .text-link { font-weight: 800; }
    .compare { background: var(--ink); color: #fff; }
    .compare .section-head p { color: #c9d6d0; }
    .compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .compare-pane { padding: 28px; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); }
    .compare-pane.accent { background: #2c393b; }
    .compare-list { margin: 18px 0 0; padding: 0; list-style: none; }
    .compare-list li { padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 15px; }
    .status { color: var(--lime); font-size: 14px; font-weight: 800; white-space: nowrap; }
    .topic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
    .topic-panel { border-left: 4px solid var(--coral); padding: 5px 0 5px 24px; }
    .topic-panel.teal { border-color: var(--teal); }
    .topic-panel p { color: var(--muted); }
    .calendar { display: grid; grid-template-columns: 190px 1fr; border-top: 1px solid var(--line); }
    .calendar-row { display: contents; }
    .calendar-row > * { padding: 19px 15px; border-bottom: 1px solid var(--line); }
    .calendar-date { color: var(--coral-dark); font-weight: 800; }
    .calendar-title { font-weight: 750; }
    .calendar-note { color: var(--muted); font-size: 14px; }
    .faq-list { max-width: 850px; margin: 0; }
    .accordion-title { border: 1px solid var(--line); border-bottom: 0; background: var(--surface); }
    .accordion-title a { color: var(--ink); font-weight: 800; padding: 18px 20px; }
    .accordion-title:hover, .accordion-title:focus { background: var(--teal-soft); }
    .accordion-content { border: 1px solid var(--line); border-top: 0; background: #fff; color: var(--muted); padding: 18px 20px; }
    .form-band { background: var(--teal-soft); }
    .form-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 45px; align-items: start; }
    .form-note { color: #526463; }
    label { color: var(--ink); font-weight: 750; margin-bottom: 7px; }
    input, textarea, select { border: 1px solid #cbd8d3; border-radius: 5px; box-shadow: none; background: #fff; }
    input:focus, textarea:focus, select:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(23,127,122,.13); }
    .check-line { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: 14px; }
    .check-line input { margin-top: 6px; }
    .form-status { display: none; padding: 10px 14px; border-radius: 5px; background: #e5f3ea; color: var(--success); margin-bottom: 15px; }
    .footer { background: #192125; color: #bbc9c4; padding: 48px 0 24px; }
    .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 35px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.12); }
    .footer .brand { color: #fff; display: inline-block; margin-bottom: 13px; }
    .footer p { font-size: 14px; max-width: 360px; }
    .footer h3 { color: #fff; font-size: 15px; }
    .footer ul { list-style: none; padding: 0; margin: 0; }
    .footer li { margin: 5px 0; font-size: 14px; }
    .footer a { color: #cbdad4; }
    .footer a:hover { color: var(--lime); }
    .copyright { padding-top: 18px; font-size: 13px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
    @media (max-width: 992px) {
      .hero-grid { gap: 30px; }
      .metrics { grid-template-columns: 1fr 1fr; }
      .matrix { grid-template-columns: 1fr 1fr; }
      .matrix-block.featured { transform: none; grid-column: span 2; }
    }
    @media (max-width: 768px) {
      .container { width: min(calc(100% - 28px), var(--max)); }
      .topbar .container, .topbar-right { gap: 10px; }
      .topbar-left { display: none; }
      .nav-wrap { min-height: 68px; }
      .brand { font-size: 18px; }
      .hero { padding: 48px 0 38px; }
      .hero-grid, .form-layout, .topic-grid { grid-template-columns: 1fr; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 16px; }
      .visual-board { min-height: 255px; }
      .cover-frame { min-height: 210px; }
      .section { padding: 56px 0; }
      .main-nav { background: #fff; border: 1px solid var(--line); padding: 10px; box-shadow: var(--shadow); }
      .main-nav a { display: block; }
      .calendar { grid-template-columns: 1fr; }
      .calendar-row > * { padding: 13px 10px; }
      .calendar-date { padding-bottom: 0 !important; border-bottom: 0 !important; }
      .calendar-title { padding-top: 2px !important; }
      .calendar-note { padding-top: 0 !important; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 576px) {
      .topbar-right span { display: none; }
      .hero-actions .button { width: 100%; text-align: center; }
      h1 { font-size: 36px; }
      .metrics, .matrix, .compare-grid, .footer-grid { grid-template-columns: 1fr; }
      .matrix-block.featured { grid-column: auto; }
      .metric { padding: 19px; }
      .copyright { display: block; }
      .copyright span { display: block; margin-top: 6px; }
    }

/* roulang page: category1 */
:root {
 --ink: #20262d;
 --muted: #6d7780;
 --paper: #f5f7f6;
 --surface: #ffffff;
 --line: #dfe5e2;
 --coral: #e36b52;
 --coral-dark: #b94b38;
 --teal: #177f7a;
 --teal-soft: #dcefeb;
 --lime: #d9e86a;
 --sand: #f1eadc;
 --success: #287e5c;
 --warning: #a87524;
 --danger: #ae4d48;
 --radius: 8px;
 --shadow: 0 10px 28px rgba(31, 48, 49, .08);
 --max: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
 margin: 0; color: var(--ink); background: var(--paper);
 font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
 font-size: 16px; line-height: 1.75;
}
a { color: var(--teal); text-decoration: none; transition: color .2s ease, background .2s ease, transform .2s ease, border-color .2s ease; }
a:hover { color: var(--coral-dark); }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button, .button { cursor: pointer; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
 outline: 3px solid rgba(227,107,82,.38); outline-offset: 3px;
}
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.topbar { background: var(--ink); color: #dce4e0; font-size: 13px; }
.topbar .container { min-height: 36px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar a { color: var(--lime); font-weight: 700; }
.topbar-right { display: flex; gap: 18px; align-items: center; }
.site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { color: var(--ink); font-size: 22px; font-weight: 800; letter-spacing: 0; white-space: nowrap; }
.brand span { color: var(--coral); }
.main-nav { display: flex; align-items: center; gap: 8px; margin: 0; }
.main-nav li { list-style: none; }
.main-nav a { color: var(--muted); padding: 9px 13px; border-radius: 6px; font-weight: 700; }
.main-nav a:hover, .main-nav a.active { color: var(--ink); background: var(--teal-soft); }
.nav-action { background: var(--coral) !important; color: #fff !important; }
.nav-action:hover { background: var(--coral-dark) !important; transform: translateY(-1px); }
.menu-icon { border-color: var(--line); margin: 0; }
.menu-icon::after { background: var(--ink); box-shadow: 0 7px 0 var(--ink), 0 14px 0 var(--ink); }

.page-intro { background: var(--sand); border-bottom: 1px solid var(--line); padding: 34px 0 42px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 7px; color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.breadcrumb span { color: #9aa49f; }
.intro-grid { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(300px,.85fr); gap: 42px; align-items: end; }
.eyebrow, .section-kicker { color: var(--coral-dark); font-weight: 800; font-size: 13px; letter-spacing: .04em; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(30px, 4vw, 48px); line-height: 1.22; margin: 7px 0 13px; font-weight: 850; letter-spacing: 0; }
h2 { font-size: clamp(24px, 2.6vw, 33px); line-height: 1.3; margin-bottom: 10px; font-weight: 820; }
h3 { font-size: 18px; line-height: 1.45; font-weight: 800; }
.intro-copy { color: #50605f; font-size: 17px; max-width: 720px; margin-bottom: 0; }
.search-panel { background: var(--surface); border: 1px solid #e5dccc; border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.search-panel label { display: block; font-size: 13px; color: var(--muted); font-weight: 800; margin-bottom: 7px; }
.search-row { display: flex; gap: 8px; }
.search-row input { min-width: 0; flex: 1; margin: 0; }
.button { border-radius: 6px; padding: 12px 19px; font-weight: 800; border: 1px solid transparent; transition: .2s ease; margin: 0; line-height: 1.35; }
.button.primary { background: var(--coral); color: #fff; }
.button.primary:hover { background: var(--coral-dark); color: #fff; transform: translateY(-2px); }
.button.primary:active { transform: translateY(0); }
.button.secondary { background: transparent; border-color: #b6c7c1; color: var(--ink); }
.button.secondary:hover { background: #fff; border-color: var(--teal); color: var(--ink); }
.button[disabled] { opacity: .5; cursor: not-allowed; transform: none !important; }
.search-help { color: var(--muted); font-size: 12px; margin: 10px 0 0; }

.content-area { padding: 48px 0 72px; }
.catalog-layout { display: grid; grid-template-columns: 280px minmax(0,1fr); gap: 30px; align-items: start; }
.filter-panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; position: sticky; top: 98px; }
.filter-panel h2 { font-size: 19px; margin-bottom: 4px; }
.filter-panel > p { font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.filter-group { border-top: 1px solid var(--line); padding: 17px 0; }
.filter-group:last-of-type { padding-bottom: 8px; }
.filter-group h3 { font-size: 14px; margin-bottom: 10px; }
.filter-link {
 width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 10px;
 padding: 8px 9px; margin: 1px 0; border-radius: 5px; color: #4f5d5b; font-size: 14px;
}
.filter-link:hover, .filter-link.active { background: var(--teal-soft); color: var(--ink); }
.filter-count { color: var(--muted); font-size: 12px; }
.reset-link { display: inline-block; margin-top: 7px; font-size: 13px; font-weight: 800; }
.mobile-filter-toggle { display: none; width: 100%; justify-content: space-between; align-items: center; }

.results-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.results-head h2 { margin: 0 0 3px; }
.results-head p { color: var(--muted); font-size: 14px; margin: 0; }
.sort-select { width: 154px; min-width: 154px; margin: 0; height: 42px; }
.active-filters { display: flex; flex-wrap: wrap; gap: 8px; padding: 17px 0; }
.tag { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); font-size: 13px; background: #fff; }
.tag.is-selected { background: var(--teal-soft); border-color: #b5d6ce; color: var(--teal); font-weight: 800; }
.tag-close { color: var(--teal); font-weight: 900; font-size: 15px; line-height: 1; }

.result-stream { display: grid; gap: 13px; }
.result-item {
 display: grid; grid-template-columns: 178px minmax(0,1fr) auto; gap: 20px; align-items: center;
 background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
 padding: 13px; transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.result-item:hover { border-color: #b7d0c8; box-shadow: var(--shadow); transform: translateY(-2px); }
.cover {
 aspect-ratio: 16 / 10; min-height: 104px; border-radius: 5px; overflow: hidden;
 background: #dcefeb; position: relative; display: flex; align-items: flex-end; padding: 12px;
}
.cover::before, .cover::after { content: ""; position: absolute; border-radius: 50%; opacity: .7; }
.cover::before { width: 80px; height: 80px; background: var(--lime); top: -24px; right: 18px; }
.cover::after { width: 105px; height: 105px; background: #f3c0ad; bottom: -52px; left: 19px; }
.cover.alt { background: #e9e2f1; }
.cover.alt::before { background: #b6d9d1; right: -5px; }
.cover.alt::after { background: #f4d67a; }
.cover.deep { background: #d9e4e2; }
.cover.deep::before { background: #7aa9a3; }
.cover.deep::after { background: #e8896d; }
.cover-label { position: relative; z-index: 1; color: #1d3735; font-size: 12px; font-weight: 850; background: rgba(255,255,255,.75); padding: 3px 7px; border-radius: 4px; }
.item-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.status { display: inline-flex; align-items: center; padding: 2px 7px; color: var(--success); background: #e6f3eb; border-radius: 4px; font-weight: 800; }
.item-main h3 { margin: 6px 0 5px; font-size: 18px; }
.item-main p { color: var(--muted); font-size: 14px; line-height: 1.65; margin: 0; }
.item-main .tag { margin-top: 10px; margin-right: 5px; font-size: 12px; }
.item-action { white-space: nowrap; font-size: 14px; font-weight: 800; align-self: center; }

.pagination-wrap { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 27px 0 0; }
.pagination { margin: 0; }
.pagination li { border-radius: 5px; }
.pagination a, .pagination button { border-radius: 5px; color: var(--teal); }
.pagination .current { background: var(--teal); border-radius: 5px; }
.load-note { color: var(--muted); font-size: 13px; }

.topic-strip { background: #ecf4f1; border-top: 1px solid #d3e4df; border-bottom: 1px solid #d3e4df; padding: 64px 0; }
.strip-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: center; }
.strip-copy p { color: #536361; max-width: 450px; }
.topic-map { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.map-cell { min-height: 104px; background: var(--surface); border: 1px solid #cce0da; border-radius: var(--radius); padding: 15px; }
.map-cell strong { display: block; font-size: 15px; margin-bottom: 5px; }
.map-cell span { color: var(--muted); display: block; font-size: 12px; line-height: 1.55; }
.map-cell.highlight { background: var(--coral); border-color: var(--coral); color: #fff; }
.map-cell.highlight span { color: #fff0eb; }

.faq-section { padding: 74px 0; }
.section-head { max-width: 720px; margin-bottom: 28px; }
.section-head p { color: var(--muted); margin-bottom: 0; }
.faq-list { max-width: 900px; margin: 0; }
.accordion-item { margin-bottom: 9px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.accordion-title { border: 0; color: var(--ink); font-weight: 800; padding: 18px 48px 18px 20px; font-size: 16px; }
.accordion-title::before { color: var(--coral); font-size: 22px; right: 20px; margin-top: -14px; }
.accordion-title:hover, .accordion-title:focus { background: var(--teal-soft); color: var(--ink); }
.accordion-content { border: 0; border-top: 1px solid var(--line); padding: 17px 20px; color: #596664; background: #fcfdfc; }

.feedback-band { background: var(--teal); color: #fff; padding: 58px 0; }
.feedback-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
.feedback-band h2 { color: #fff; }
.feedback-band .section-kicker { color: var(--lime); }
.feedback-copy { color: #d5e9e4; max-width: 420px; }
.feedback-points { list-style: none; padding: 0; margin: 22px 0 0; }
.feedback-points li { padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.16); color: #e7f3ef; font-size: 14px; }
.feedback-form { background: #fff; padding: 22px; border-radius: var(--radius); color: var(--ink); box-shadow: var(--shadow); }
.feedback-form label { font-size: 13px; color: #4f5b59; font-weight: 800; }
input, textarea, select { border: 1px solid #cbd8d3; border-radius: 5px; box-shadow: none; background: #fff; }
input:focus, textarea:focus, select:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(23,127,122,.13); }
textarea { min-height: 90px; resize: vertical; }
.check-line { color: var(--muted); font-size: 13px; display: flex; gap: 8px; align-items: flex-start; margin: 3px 0 15px; }
.check-line input { margin: 6px 0 0; }
.form-status { display: none; padding: 10px 14px; border-radius: 5px; background: #e5f3ea; color: var(--success); margin-bottom: 15px; font-size: 14px; }
.field-error { display: none; color: var(--danger); font-size: 12px; margin-top: -8px; margin-bottom: 10px; }

.footer { background: #192125; color: #bbc9c4; padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 35px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.12); }
.footer .brand { color: #fff; display: inline-block; margin-bottom: 13px; }
.footer p { font-size: 14px; max-width: 360px; }
.footer h3 { color: #fff; font-size: 15px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin: 5px 0; font-size: 14px; }
.footer a { color: #cbdad4; }
.footer a:hover { color: var(--lime); }
.copyright { padding-top: 18px; font-size: 13px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

@media screen and (max-width: 992px) {
 .intro-grid, .feedback-layout { grid-template-columns: 1fr; gap: 26px; }
 .catalog-layout { grid-template-columns: 230px minmax(0,1fr); gap: 20px; }
 .result-item { grid-template-columns: 145px minmax(0,1fr); }
 .item-action { grid-column: 2; justify-self: start; }
 .strip-grid { grid-template-columns: 1fr; gap: 22px; }
}
@media screen and (max-width: 768px) {
 .container { width: min(calc(100% - 28px), var(--max)); }
 .topbar .container, .topbar-right { gap: 10px; }
 .topbar-left { display: none; }
 .nav-wrap { min-height: 68px; position: relative; }
 .brand { font-size: 18px; }
 .main-nav { display: none; position: absolute; top: 67px; left: 0; right: 0; padding: 11px 14px 16px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
 .main-nav.is-open { display: block; }
 .main-nav .menu { display: grid; gap: 4px; }
 .main-nav a { display: block; }
 .page-intro { padding: 28px 0 32px; }
 .catalog-layout { display: block; }
 .filter-panel { position: static; margin-bottom: 18px; padding: 0; overflow: hidden; }
 .mobile-filter-toggle { display: flex; padding: 16px 18px; border: 0; background: var(--surface); color: var(--ink); font-weight: 800; }
 .filter-panel-inner { display: none; padding: 0 20px 18px; }
 .filter-panel.is-open .filter-panel-inner { display: block; }
 .results-head { align-items: flex-start; flex-direction: column; }
 .sort-select { width: 100%; }
 .topic-map { grid-template-columns: repeat(2,1fr); }
 .footer-grid { grid-template-columns: 1fr 1fr; }
 .footer-grid > :first-child { grid-column: span 2; }
}
@media screen and (max-width: 576px) {
 h1 { font-size: 31px; }
 .topbar-right span { display: none; }
 .search-row { flex-direction: column; }
 .search-row .button { width: 100%; }
 .result-item { grid-template-columns: 1fr; gap: 13px; }
 .cover { min-height: 145px; }
 .item-action { grid-column: auto; }
 .pagination-wrap { align-items: flex-start; flex-direction: column; }
 .topic-map { grid-template-columns: 1fr; }
 .feedback-form { padding: 17px; }
 .footer-grid { grid-template-columns: 1fr; gap: 24px; }
 .footer-grid > :first-child { grid-column: auto; }
 .copyright { display: block; }
 .copyright span { display: block; margin-bottom: 7px; }
}

/* roulang page: category2 */
:root {
      --ink: #20262d;
      --muted: #6d7780;
      --paper: #f5f7f6;
      --surface: #ffffff;
      --line: #dfe5e2;
      --coral: #e36b52;
      --coral-dark: #b94b38;
      --teal: #177f7a;
      --teal-soft: #dcefeb;
      --lime: #d9e86a;
      --sand: #f1eadc;
      --success: #287e5c;
      --warning: #a87524;
      --danger: #a94b42;
      --radius: 8px;
      --shadow: 0 10px 28px rgba(31, 48, 49, .08);
      --max: 1200px;
    }

    html { scroll-behavior: smooth; }
    *, *::before, *::after { box-sizing: border-box; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
    }
    a {
      color: var(--teal);
      text-decoration: none;
      transition: color .2s ease, background .2s ease, transform .2s ease, border-color .2s ease;
    }
    a:hover { color: var(--coral-dark); }
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
      outline: 3px solid rgba(217, 232, 106, .95);
      outline-offset: 3px;
    }
    img { display: block; max-width: 100%; }
    button, input, textarea, select { font: inherit; }
    button, .button { cursor: pointer; }
    h1, h2, h3, p { margin-top: 0; }
    h1, h2, h3 { line-height: 1.25; letter-spacing: 0; }
    h1 { font-size: clamp(2rem, 4vw, 3.6rem); margin-bottom: 18px; }
    h2 { font-size: clamp(1.65rem, 3vw, 2.35rem); margin-bottom: 12px; }
    h3 { font-size: 1.08rem; margin-bottom: 8px; }
    .container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }

    .topbar {
      background: var(--ink);
      color: #dce4e0;
      font-size: 13px;
    }
    .topbar .container {
      min-height: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .topbar a { color: var(--lime); font-weight: 700; }
    .topbar-right { display: flex; gap: 18px; align-items: center; }
    .topbar-right span::before {
      content: "•";
      color: var(--coral);
      margin-right: 7px;
    }

    .site-header {
      background: rgba(255,255,255,.97);
      border-bottom: 1px solid var(--line);
      position: sticky;
      top: 0;
      z-index: 20;
    }
    .nav-wrap {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }
    .brand {
      color: var(--ink);
      font-size: 22px;
      font-weight: 800;
      letter-spacing: 0;
      white-space: nowrap;
    }
    .brand span { color: var(--coral); }
    .main-nav { display: flex; align-items: center; gap: 8px; margin: 0; }
    .main-nav .menu { background: transparent; }
    .main-nav li { list-style: none; }
    .main-nav a {
      color: var(--muted);
      padding: 9px 13px;
      border-radius: 6px;
      font-weight: 700;
      display: block;
    }
    .main-nav a:hover, .main-nav a.active {
      color: var(--ink);
      background: var(--teal-soft);
    }
    .main-nav a.nav-action {
      background: var(--coral);
      color: #fff;
    }
    .main-nav a.nav-action:hover {
      background: var(--coral-dark);
      color: #fff;
      transform: translateY(-1px);
    }
    .menu-icon {
      width: 42px;
      height: 38px;
      border: 1px solid var(--line);
      border-radius: 6px;
      background: var(--surface);
    }
    .menu-icon::after {
      background: var(--ink);
      box-shadow: 0 7px 0 var(--ink), 0 14px 0 var(--ink);
    }

    .page-hero {
      background: var(--sand);
      border-bottom: 1px solid var(--line);
      padding: 52px 0 38px;
    }
    .breadcrumbs {
      margin: 0 0 20px;
      color: var(--muted);
      font-size: 14px;
    }
    .breadcrumbs a { font-weight: 700; }
    .hero-compact {
      display: grid;
      grid-template-columns: 1fr 330px;
      gap: 50px;
      align-items: end;
    }
    .eyebrow, .section-kicker {
      color: var(--coral-dark);
      font-weight: 800;
      font-size: 13px;
      letter-spacing: .04em;
      text-transform: uppercase;
    }
    .hero-summary {
      max-width: 720px;
      color: #4d5a5b;
      font-size: 18px;
      margin-bottom: 0;
    }
    .quick-search {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 18px;
      box-shadow: var(--shadow);
    }
    .quick-search label {
      color: var(--ink);
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .search-row {
      display: flex;
      gap: 8px;
    }
    .search-row input {
      min-width: 0;
      margin: 0;
      height: 44px;
      border: 1px solid #cbd8d3;
      border-radius: 5px;
      box-shadow: none;
      background: #fff;
    }
    .search-row .button {
      margin: 0;
      white-space: nowrap;
      padding: 10px 14px;
    }

    .section { padding: 68px 0; }
    .section-head {
      max-width: 760px;
      margin-bottom: 28px;
    }
    .section-head p { color: var(--muted); margin-bottom: 0; }
    .index-layout {
      display: grid;
      grid-template-columns: 278px minmax(0, 1fr);
      gap: 34px;
      align-items: start;
    }
    .filter-panel {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 22px;
      position: sticky;
      top: 104px;
    }
    .filter-panel h2 {
      font-size: 1.18rem;
      margin-bottom: 5px;
    }
    .filter-panel > p {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 20px;
    }
    .filter-group {
      border-top: 1px solid var(--line);
      padding: 17px 0 2px;
    }
    .filter-group:first-of-type { border-top: 0; padding-top: 0; }
    .filter-group h3 {
      font-size: 14px;
      margin-bottom: 9px;
    }
    .filter-group label {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 6px;
      cursor: pointer;
    }
    .filter-group input { margin: 0; accent-color: var(--teal); }
    .filter-reset {
      width: 100%;
      margin-top: 16px;
      background: transparent;
      color: var(--teal);
      border: 1px solid #b6c7c1;
      border-radius: 6px;
      padding: 9px 12px;
      font-weight: 800;
    }
    .filter-reset:hover { border-color: var(--teal); background: var(--teal-soft); }

    .results-area { min-width: 0; }
    .results-toolbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 18px;
      padding-bottom: 17px;
      border-bottom: 1px solid var(--line);
      margin-bottom: 16px;
    }
    .result-count { color: var(--muted); font-size: 14px; }
    .result-count strong { color: var(--ink); font-size: 21px; margin-right: 5px; }
    .sort-control {
      display: flex;
      align-items: center;
      gap: 9px;
      color: var(--muted);
      font-size: 14px;
    }
    .sort-control select {
      width: auto;
      min-width: 145px;
      margin: 0;
      height: 40px;
      border: 1px solid #cbd8d3;
      border-radius: 5px;
      box-shadow: none;
      color: var(--ink);
      background-color: var(--surface);
    }

    .feature-strip {
      background: var(--ink);
      color: #fff;
      border-radius: var(--radius);
      padding: 22px;
      margin-bottom: 20px;
      display: grid;
      grid-template-columns: 124px 1fr auto;
      gap: 20px;
      align-items: center;
    }
    .cover-art {
      min-height: 102px;
      aspect-ratio: 1.18 / 1;
      border-radius: 6px;
      overflow: hidden;
      position: relative;
      background-color: #286b68;
      background-image:
        linear-gradient(135deg, transparent 42%, rgba(217,232,106,.76) 43%, rgba(217,232,106,.76) 52%, transparent 53%),
        linear-gradient(35deg, rgba(227,107,82,.9) 0 25%, transparent 26%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 2px, transparent 2px 14px);
    }
    .cover-art::after {
      content: "字幕索引";
      position: absolute;
      left: 10px;
      bottom: 8px;
      color: #fff;
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .08em;
    }
    .feature-strip h2 {
      color: #fff;
      font-size: 1.35rem;
      margin-bottom: 7px;
    }
    .feature-strip p {
      color: #c9d6d0;
      font-size: 14px;
      margin-bottom: 8px;
    }
    .feature-strip .button {
      background: var(--lime);
      color: var(--ink);
      white-space: nowrap;
      margin: 0;
    }
    .feature-strip .button:hover {
      background: #e8f28b;
      color: var(--ink);
      transform: translateY(-2px);
    }

    .tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin: 12px 0 0; }
    .tag {
      display: inline-flex;
      padding: 3px 9px;
      border: 1px solid var(--line);
      border-radius: 5px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.5;
      background: rgba(255,255,255,.45);
    }
    .feature-strip .tag {
      border-color: rgba(255,255,255,.32);
      color: #eaf1ee;
      background: transparent;
    }

    .index-list { display: grid; gap: 12px; }
    .index-item {
      display: grid;
      grid-template-columns: 112px minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 15px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .index-item:hover {
      transform: translateY(-2px);
      border-color: #b9d1ca;
      box-shadow: var(--shadow);
    }
    .index-item .cover-art {
      min-height: 88px;
      width: 112px;
      background-color: #b75b48;
      background-image:
        linear-gradient(155deg, rgba(23,127,122,.95) 0 38%, transparent 39%),
        linear-gradient(30deg, rgba(217,232,106,.8) 0 25%, transparent 26%),
        repeating-linear-gradient(0deg, rgba(255,255,255,.1) 0 2px, transparent 2px 10px);
    }
    .index-item:nth-child(2) .cover-art {
      background-color: #557c74;
      background-image:
        linear-gradient(135deg, rgba(227,107,82,.9) 0 35%, transparent 36%),
        linear-gradient(320deg, rgba(217,232,106,.82) 0 27%, transparent 28%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.11) 0 2px, transparent 2px 11px);
    }
    .index-item:nth-child(3) .cover-art {
      background-color: #6a6d83;
      background-image:
        linear-gradient(40deg, rgba(23,127,122,.92) 0 40%, transparent 41%),
        linear-gradient(210deg, rgba(227,107,82,.9) 0 22%, transparent 23%),
        repeating-linear-gradient(135deg, rgba(255,255,255,.1) 0 3px, transparent 3px 13px);
    }
    .index-item:nth-child(4) .cover-art {
      background-color: #a87524;
      background-image:
        linear-gradient(165deg, rgba(32,38,45,.72) 0 35%, transparent 36%),
        linear-gradient(20deg, rgba(217,232,106,.82) 0 30%, transparent 31%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.1) 0 2px, transparent 2px 15px);
    }
    .item-copy h3 { margin-bottom: 5px; }
    .item-copy h3 a { color: var(--ink); }
    .item-copy h3 a:hover { color: var(--coral-dark); }
    .item-copy p {
      color: var(--muted);
      font-size: 14px;
      margin: 8px 0 0;
      line-height: 1.6;
    }
    .item-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      color: var(--muted);
      font-size: 13px;
    }
    .status {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      color: var(--success);
      font-weight: 800;
    }
    .status::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--success);
    }
    .item-action { white-space: nowrap; font-weight: 800; }
    .item-action::after { content: " →"; }
    .empty-state {
      display: none;
      background: var(--surface);
      border: 1px dashed #b6c7c1;
      border-radius: var(--radius);
      color: var(--muted);
      text-align: center;
      padding: 32px 18px;
      margin-top: 15px;
    }
    .pagination {
      display: flex;
      justify-content: center;
      gap: 6px;
      margin: 28px 0 0;
    }
    .pagination a, .pagination span {
      min-width: 38px;
      height: 38px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line);
      border-radius: 5px;
      background: var(--surface);
      color: var(--muted);
      font-weight: 800;
    }
    .pagination a:hover, .pagination .current {
      background: var(--teal);
      border-color: var(--teal);
      color: #fff;
    }
    .pagination .disabled { opacity: .48; cursor: not-allowed; }

    .update-band { background: var(--teal-soft); }
    .update-layout {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 50px;
      align-items: center;
    }
    .update-note { color: #526463; }
    .signal-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 10px;
    }
    .signal-list li {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      padding: 14px 16px;
      background: var(--surface);
      border: 1px solid #c9dfda;
      border-radius: 6px;
    }
    .signal-list span { color: var(--muted); font-size: 14px; }
    .signal-list strong { color: var(--teal); }

    .faq-section { background: var(--surface); }
    .faq-list { max-width: 850px; margin: 0; }
    .accordion-title {
      border: 1px solid var(--line);
      border-bottom: 0;
      background: var(--surface);
    }
    .accordion-item:last-child .accordion-title { border-bottom: 1px solid var(--line); }
    .accordion-title a {
      color: var(--ink);
      font-weight: 800;
      padding: 18px 20px;
    }
    .accordion-title:hover, .accordion-title:focus { background: var(--teal-soft); }
    .accordion-content {
      border: 1px solid var(--line);
      border-top: 0;
      color: var(--muted);
      background: #fbfcfb;
      padding: 16px 20px;
    }

    .cta-band {
      background: var(--coral);
      color: #fff;
      padding: 54px 0;
    }
    .cta-layout {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 30px;
    }
    .cta-band h2 { color: #fff; margin-bottom: 8px; }
    .cta-band p { color: #fff0eb; margin-bottom: 0; max-width: 670px; }
    .cta-band .button {
      background: var(--lime);
      color: var(--ink);
      border-color: var(--lime);
      white-space: nowrap;
      margin: 0;
    }
    .cta-band .button:hover {
      background: #edf69c;
      color: var(--ink);
      transform: translateY(-2px);
    }

    .footer {
      background: #192125;
      color: #bbc9c4;
      padding: 48px 0 24px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 35px;
      padding-bottom: 32px;
      border-bottom: 1px solid rgba(255,255,255,.12);
    }
    .footer .brand { color: #fff; display: inline-block; margin-bottom: 13px; }
    .footer p { font-size: 14px; max-width: 360px; }
    .footer h3 { color: #fff; font-size: 15px; }
    .footer ul { list-style: none; padding: 0; margin: 0; }
    .footer li { margin: 5px 0; font-size: 14px; }
    .footer a { color: #cbdad4; }
    .footer a:hover { color: var(--lime); }
    .copyright {
      padding-top: 18px;
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
    }

    @media screen and (max-width: 992px) {
      .container { width: min(calc(100% - 32px), var(--max)); }
      .hero-compact { grid-template-columns: 1fr 290px; gap: 28px; }
      .index-layout { grid-template-columns: 235px minmax(0, 1fr); gap: 22px; }
      .update-layout { gap: 30px; }
    }
    @media screen and (max-width: 767px) {
      .topbar .container { min-height: 34px; }
      .topbar-left { display: none; }
      .topbar-right { width: 100%; justify-content: space-between; gap: 8px; }
      .topbar-right span:last-child { display: none; }
      .nav-wrap { min-height: 68px; gap: 14px; }
      .brand { font-size: 18px; }
      .main-nav {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        padding: 10px 16px 16px;
        background: var(--surface);
        border-bottom: 1px solid var(--line);
        box-shadow: var(--shadow);
      }
      .main-nav.is-open { display: block; }
      .main-nav .menu { display: block; }
      .main-nav li { margin: 4px 0; }
      .main-nav a { padding: 11px 13px; }
      .page-hero { padding: 38px 0 30px; }
      .hero-compact, .index-layout, .update-layout { grid-template-columns: 1fr; }
      .hero-summary { font-size: 16px; }
      .quick-search { margin-top: 4px; }
      .filter-panel { position: static; }
      .section { padding: 52px 0; }
      .feature-strip {
        grid-template-columns: 92px minmax(0, 1fr);
        gap: 14px;
      }
      .feature-strip .button {
        grid-column: 2;
        justify-self: start;
      }
      .feature-strip .cover-art { min-height: 78px; }
      .index-item {
        grid-template-columns: 82px minmax(0, 1fr);
        gap: 13px;
      }
      .index-item .cover-art { width: 82px; min-height: 76px; }
      .item-action { grid-column: 2; justify-self: start; }
      .results-toolbar { align-items: flex-start; flex-direction: column; }
      .sort-control { width: 100%; justify-content: space-between; }
      .sort-control select { flex: 1; }
      .cta-layout { align-items: flex-start; flex-direction: column; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
      .footer-grid > div:first-child { grid-column: span 2; }
    }
    @media screen and (max-width: 575px) {
      .container { width: min(calc(100% - 28px), var(--max)); }
      .search-row { flex-direction: column; }
      .search-row .button { width: 100%; }
      .feature-strip { grid-template-columns: 74px minmax(0, 1fr); padding: 16px; }
      .feature-strip h2 { font-size: 1.12rem; }
      .index-item { padding: 12px; }
      .index-item .cover-art { width: 72px; }
      .index-item { grid-template-columns: 72px minmax(0, 1fr); }
      .item-copy p { font-size: 13px; }
      .signal-list li { align-items: flex-start; flex-direction: column; gap: 3px; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-grid > div:first-child { grid-column: auto; }
      .copyright { display: block; }
      .copyright span { display: block; margin-bottom: 7px; }
    }