/* roulang page: index */
:root {
      --ink: #171817;
      --deep: #20221f;
      --deep-2: #2a2c28;
      --paper: #f7f5ef;
      --warm: #eee9dc;
      --line: #ded9cc;
      --muted: #77766d;
      --yellow: #f3c75f;
      --yellow-2: #ffda78;
      --mint: #b9d8c3;
      --white: #fffdf8;
      --shadow: 0 18px 50px rgba(29, 28, 23, .09);
      --radius: 22px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      line-height: 1.8;
      letter-spacing: 0;
      text-rendering: optimizeLegibility;
    }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    button { cursor: pointer; }
    .container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
    .site-header {
      position: sticky; top: 0; z-index: 50;
      background: rgba(247, 245, 239, .88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(222, 217, 204, .85);
    }
    .nav-main { min-height: 72px; display: flex; align-items: center; gap: 25px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 900; white-space: nowrap; }
    .brand-mark {
      width: 34px; height: 34px; display: grid; place-items: center;
      color: var(--ink); background: var(--yellow); border-radius: 10px; font-size: 17px;
      box-shadow: 4px 4px 0 rgba(23, 24, 23, .12);
    }
    .brand-text { font-size: 17px; }
    .nav-links { display: flex; align-items: center; gap: 5px; margin-left: auto; }
    .nav-links a {
      padding: 8px 13px; color: #64635c; font-size: 14px; border-radius: 10px; transition: .2s ease;
    }
    .nav-links a:hover, .nav-links a.active { color: var(--ink); background: var(--yellow); }
    .search {
      height: 42px; display: flex; align-items: center; gap: 8px; padding: 0 13px;
      background: #ebe8df; border: 1px solid transparent; border-radius: 13px; color: var(--muted);
    }
    .search:focus-within { border-color: var(--yellow); box-shadow: 0 0 0 3px rgba(243,199,95,.22); }
    .search input { width: 150px; background: transparent; border: 0; outline: 0; color: var(--ink); font-size: 13px; }
    .search input::placeholder { color: #96938a; }
    .menu-toggle { display: none; border: 0; background: transparent; font-size: 24px; }
    .hero {
      position: relative; overflow: hidden; color: var(--white);
      background: radial-gradient(circle at 78% 28%, #4b4b40 0, transparent 29%), linear-gradient(125deg, #151615, #2e302b 60%, #403b2d);
      min-height: 635px; display: flex; align-items: center;
    }
    .hero::before {
      content: "字幕  字幕  字幕  字幕  字幕  字幕  字幕";
      position: absolute; left: -4%; right: -4%; top: 19%; color: rgba(255,255,255,.035);
      font-size: clamp(36px, 8vw, 106px); font-weight: 900; letter-spacing: 8px; white-space: nowrap;
      transform: rotate(-8deg); pointer-events: none;
    }
    .hero::after {
      content: ""; position: absolute; inset: 0; opacity: .16; pointer-events: none;
      background-image: linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
      background-size: 44px 44px; mask-image: linear-gradient(to bottom, black, transparent 78%);
    }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 74px; align-items: center; padding: 90px 0 105px; }
    .eyebrow, .tag {
      display: inline-flex; align-items: center; gap: 7px; width: fit-content;
      padding: 5px 11px; border-radius: 999px; font-size: 12px; font-weight: 800; letter-spacing: .02em;
    }
    .eyebrow { color: var(--yellow-2); border: 1px solid rgba(243,199,95,.45); background: rgba(243,199,95,.1); }
    .hero h1 { max-width: 620px; margin: 22px 0 18px; font-size: clamp(40px, 5.2vw, 68px); line-height: 1.13; letter-spacing: 0; font-weight: 900; }
    .hero-copy { max-width: 590px; color: #d2d2c9; font-size: 17px; line-height: 1.9; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 31px; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 46px; padding: 0 19px; border: 1px solid transparent; border-radius: 14px;
      font-size: 14px; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .btn:hover { transform: translateY(-3px); box-shadow: 0 10px 25px rgba(0,0,0,.15); }
    .btn:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }
    .btn-primary { color: var(--ink); background: var(--yellow); }
    .btn-primary:hover { background: var(--yellow-2); }
    .btn-ghost { color: var(--white); border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.06); }
    .hero-notes { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 39px; }
    .hero-notes span { padding: 7px 12px; color: #c8c8bf; border-left: 2px solid var(--yellow); font-size: 13px; }
    .matrix {
      display: grid; grid-template-columns: 1fr 1fr; gap: 12px; transform: rotate(1.5deg);
    }
    .matrix-card {
      min-height: 155px; padding: 20px; border: 1px solid rgba(255,255,255,.14); border-radius: 18px;
      background: rgba(255,255,255,.075); box-shadow: 0 20px 45px rgba(0,0,0,.17);
      transition: .25s ease;
    }
    .matrix-card:nth-child(2) { margin-top: 28px; background: rgba(243,199,95,.13); }
    .matrix-card:nth-child(3) { margin-top: -22px; background: rgba(185,216,195,.12); }
    .matrix-card:hover { transform: translateY(-5px); border-color: var(--yellow); }
    .matrix-num { color: var(--yellow); font-size: 12px; font-weight: 900; }
    .matrix-card h3 { margin: 14px 0 5px; font-size: 18px; line-height: 1.35; }
    .matrix-card p { margin: 0; color: #b8b9b0; font-size: 13px; line-height: 1.65; }
    .section { padding: 92px 0; }
    .section-warm { background: var(--warm); }
    .section-dark { color: var(--white); background: var(--deep); }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 25px; margin-bottom: 34px; }
    .section-kicker { color: #9a7b2f; font-size: 12px; font-weight: 900; letter-spacing: .13em; }
    .section-dark .section-kicker { color: var(--yellow); }
    .section h2 { margin: 8px 0 0; font-size: clamp(28px, 3.3vw, 42px); line-height: 1.25; font-weight: 900; }
    .section-intro { max-width: 560px; margin: 12px 0 0; color: var(--muted); font-size: 15px; }
    .section-dark .section-intro { color: #b9bbb2; }
    .scroll-row { display: flex; gap: 17px; overflow-x: auto; padding: 4px 4px 20px; scroll-snap-type: x mandatory; scrollbar-width: thin; }
    .scroll-row::-webkit-scrollbar { height: 7px; }
    .scroll-row::-webkit-scrollbar-thumb { background: #c5beae; border-radius: 99px; }
    .entry-card { flex: 0 0 305px; min-height: 276px; padding: 25px; scroll-snap-align: start; border-radius: var(--radius); background: var(--white); border: 1px solid var(--line); box-shadow: 0 9px 28px rgba(45,42,34,.05); transition: .25s ease; display: flex; flex-direction: column; }
    .entry-card:hover { transform: translateY(-4px); border-color: #c4a34e; box-shadow: var(--shadow); }
    .tag { color: #635a43; background: #eee7d5; }
    .tag.mint { color: #385b46; background: #dbeadf; }
    .tag.dark { color: #e8c76a; background: #3a382e; }
    .entry-card h3 { margin: 20px 0 10px; font-size: 21px; line-height: 1.35; }
    .entry-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
    .entry-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 20px; font-size: 13px; font-weight: 800; }
    .arrow { color: #957321; font-size: 21px; transition: transform .2s; }
    .entry-card:hover .arrow { transform: translateX(5px); }
    .recommend-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: 20px; }
    .feature-recommend { min-height: 386px; padding: 35px; display: flex; flex-direction: column; justify-content: end; border-radius: var(--radius); color: var(--white); background: linear-gradient(145deg, #42443d, #20221f 68%); position: relative; overflow: hidden; }
    .feature-recommend::before { content: "中"; position: absolute; right: 25px; top: -25px; color: rgba(243,199,95,.13); font-size: 250px; font-weight: 900; line-height: 1; }
    .feature-recommend > * { position: relative; z-index: 1; }
    .feature-recommend h3 { max-width: 480px; margin: 17px 0 9px; font-size: 30px; line-height: 1.3; }
    .feature-recommend p { max-width: 490px; margin: 0; color: #c8c9c0; font-size: 15px; }
    .recommend-list { display: grid; gap: 10px; }
    .recommend-item { display: grid; grid-template-columns: 40px 1fr auto; gap: 14px; align-items: center; padding: 18px 20px; border-bottom: 1px solid var(--line); background: #fbfaf5; transition: .2s; }
    .recommend-item:hover { background: #f0eadb; padding-left: 24px; }
    .recommend-index { color: #ae8b2f; font-size: 20px; font-weight: 900; }
    .recommend-item h4 { margin: 0 0 3px; font-size: 16px; line-height: 1.4; }
    .recommend-item p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
    .recommend-meta { color: #96938a; font-size: 12px; white-space: nowrap; }
    .topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
    .topic-card { padding: 25px; min-height: 205px; border: 1px solid var(--line); border-radius: 18px; background: #fbfaf5; position: relative; transition: .25s; }
    .topic-card::before { content: ""; position: absolute; left: 0; top: 22px; bottom: 22px; width: 4px; border-radius: 0 5px 5px 0; background: var(--yellow); }
    .topic-card:nth-child(2)::before { background: var(--mint); }
    .topic-card:nth-child(3)::before { background: #cfaa66; }
    .topic-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .topic-card h3 { margin: 0 0 8px 14px; font-size: 19px; }
    .topic-card p { margin: 0 0 17px 14px; color: var(--muted); font-size: 14px; line-height: 1.7; }
    .topic-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-left: 14px; }
    .topic-tags span { padding: 4px 8px; color: #6e6a5f; background: #eeeae1; border-radius: 7px; font-size: 12px; }
    .faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 60px; align-items: start; }
    .faq-layout > div:first-child p { color: var(--muted); font-size: 15px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); padding: 18px 0; }
    summary { list-style: none; cursor: pointer; font-size: 17px; font-weight: 800; display: flex; justify-content: space-between; gap: 20px; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; color: #a27f24; font-size: 23px; line-height: 1; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 680px; margin: 12px 30px 3px 0; color: var(--muted); font-size: 14px; line-height: 1.85; }
    .cta { padding: 66px 0; color: var(--white); background: #282a26; }
    .cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 35px; }
    .cta h2 { max-width: 660px; margin: 0; font-size: clamp(27px, 3.4vw, 41px); line-height: 1.3; }
    .cta p { max-width: 640px; margin: 12px 0 0; color: #bfc0b7; font-size: 15px; }
    .footer { padding: 58px 0 25px; background: #151615; color: #d9d8ce; }
    .footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 45px; padding-bottom: 45px; }
    .footer .brand { color: var(--white); }
    .footer p { max-width: 390px; color: #92938a; font-size: 13px; line-height: 1.8; }
    .footer h3 { margin: 0 0 13px; color: var(--yellow); font-size: 14px; }
    .footer a { display: block; width: fit-content; margin: 7px 0; color: #a9aaa1; font-size: 13px; transition: .2s; }
    .footer a:hover { color: var(--yellow); }
    .copyright { padding-top: 22px; border-top: 1px solid #34362f; color: #777970; font-size: 12px; }
    .floating-bar { position: fixed; right: 20px; bottom: 20px; z-index: 40; display: flex; align-items: center; gap: 12px; padding: 10px 11px 10px 17px; border: 1px solid rgba(23,24,23,.1); border-radius: 15px; background: rgba(255,253,248,.94); box-shadow: 0 14px 36px rgba(20,20,16,.16); font-size: 13px; font-weight: 800; }
    .floating-bar .btn { min-height: 37px; padding: 0 13px; border-radius: 10px; font-size: 12px; }
    @media (max-width: 900px) {
      .hero-inner, .recommend-grid, .faq-layout { grid-template-columns: 1fr; gap: 38px; }
      .hero-inner { padding: 73px 0 85px; }
      .matrix { max-width: 650px; }
      .topic-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .footer-grid > div:first-child { grid-column: 1 / -1; }
    }
    @media (max-width: 680px) {
      .container { width: min(100% - 32px, 560px); }
      .nav-main { min-height: 64px; gap: 12px; }
      .brand-text { font-size: 14px; }
      .brand-mark { width: 30px; height: 30px; font-size: 15px; }
      .nav-links, .site-search { display: none; }
      .menu-toggle { display: block; margin-left: auto; }
      .hero { min-height: auto; }
      .hero h1 { font-size: 39px; }
      .hero-copy { font-size: 15px; }
      .matrix { gap: 9px; transform: none; }
      .matrix-card { min-height: 138px; padding: 16px; }
      .matrix-card:nth-child(2) { margin-top: 18px; }
      .matrix-card:nth-child(3) { margin-top: -14px; }
      .matrix-card h3 { margin-top: 10px; font-size: 16px; }
      .matrix-card p { font-size: 12px; }
      .section { padding: 66px 0; }
      .section-head { display: block; margin-bottom: 25px; }
      .section-head .section-intro { margin-top: 12px; }
      .entry-card { flex-basis: 78vw; min-height: 260px; }
      .topic-grid { grid-template-columns: 1fr; }
      .feature-recommend { min-height: 330px; padding: 26px; }
      .feature-recommend h3 { font-size: 25px; }
      .recommend-item { grid-template-columns: 30px 1fr; }
      .recommend-meta { grid-column: 2; }
      .cta-inner { display: block; }
      .cta-inner .hero-actions { margin-top: 23px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px; }
      .footer-grid > div:first-child { grid-column: 1 / -1; }
      .floating-bar { left: 16px; right: 16px; bottom: 14px; justify-content: space-between; }
    }

/* roulang page: category1 */
:root {
      --ink: #20211f;
      --ink-soft: #4f514c;
      --muted: #777870;
      --paper: #f7f6f2;
      --white: #ffffff;
      --line: #e7e4dc;
      --amber: #f3bd45;
      --amber-deep: #d69519;
      --mint: #b8dfc8;
      --dark: #242523;
      --dark-soft: #30322e;
      --shadow: 0 18px 50px rgba(33, 34, 30, .08);
      --radius: 22px;
      --container: 1220px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    button { cursor: pointer; }
    .container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 30;
      background: rgba(247,246,242,.94);
      border-bottom: 1px solid rgba(231,228,220,.9);
      backdrop-filter: blur(16px);
    }
    .header-main {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }
    .brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: 0; white-space: nowrap; }
    .brand-mark {
      width: 36px; height: 36px; display: grid; place-items: center;
      background: var(--amber); color: var(--ink); border-radius: 11px;
      font-size: 17px; box-shadow: 4px 4px 0 rgba(32,33,31,.1);
    }
    .brand-text { font-size: 17px; }
    .header-note { color: var(--muted); font-size: 13px; padding-left: 20px; border-left: 1px solid var(--line); }
    .nav-links { display: flex; align-items: center; gap: 5px; }
    .nav-links a {
      color: var(--ink-soft); padding: 8px 13px; border-radius: 10px;
      font-size: 14px; font-weight: 650; transition: .2s ease;
    }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--ink); background: #ece9e0; outline: none; }
    .nav-links a.active { background: var(--ink); color: var(--amber); }
    .nav-toggle { display: none; border: 1px solid var(--line); background: var(--white); border-radius: 10px; padding: 7px 11px; }
    .channel-row { border-top: 1px solid rgba(231,228,220,.65); }
    .channel-inner { min-height: 46px; display: flex; align-items: center; gap: 12px; overflow-x: auto; scrollbar-width: none; }
    .channel-inner::-webkit-scrollbar { display: none; }
    .channel-label { color: var(--muted); font-size: 12px; font-weight: 700; white-space: nowrap; }
    .trend {
      white-space: nowrap; font-size: 12px; color: var(--ink-soft);
      border: 1px solid var(--line); padding: 3px 10px; border-radius: 99px;
      background: var(--white);
    }
    .search-box { display: flex; align-items: center; gap: 8px; background: var(--white); border: 1px solid var(--line); border-radius: 99px; padding: 6px 12px; min-width: 220px; }
    .search-box input { width: 100%; border: 0; outline: 0; color: var(--ink); background: transparent; font-size: 13px; }
    .search-box input::placeholder { color: #9a9b94; }
    .page-hero { padding: 78px 0 64px; background: var(--dark); color: #fff; position: relative; overflow: hidden; }
    .page-hero::before {
      content: "字幕  清晰  免费  说明  入口  字幕  清晰  免费";
      position: absolute; right: -50px; top: 34px; width: 570px; color: rgba(243,189,69,.1);
      font-size: 30px; line-height: 2.5; letter-spacing: 8px; transform: rotate(-12deg);
      pointer-events: none;
    }
    .hero-layout { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: end; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--amber); font-size: 13px; font-weight: 800; letter-spacing: .06em; }
    .eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--amber); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { margin-bottom: 22px; font-size: clamp(2.2rem, 5vw, 4.2rem); line-height: 1.15; letter-spacing: 0; font-weight: 850; }
    .hero-copy { max-width: 680px; color: #d6d7d0; font-size: 17px; line-height: 1.9; }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 26px 0 30px; }
    .tag { display: inline-flex; padding: 5px 11px; border-radius: 99px; border: 1px solid var(--line); background: var(--white); color: var(--ink-soft); font-size: 12px; font-weight: 700; }
    .tag.dark { color: #f6f5ef; background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.18); }
    .tag.yellow { color: var(--ink); background: var(--amber); border-color: var(--amber); }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 13px; padding: 11px 18px; font-weight: 750; font-size: 14px; transition: .2s ease; border: 1px solid transparent; }
    .btn-primary { background: var(--amber); color: var(--ink); }
    .btn-primary:hover, .btn-primary:focus-visible { background: #ffd36c; transform: translateY(-2px); box-shadow: 0 9px 22px rgba(243,189,69,.22); outline: none; }
    .btn-outline { color: #fff; border-color: rgba(255,255,255,.28); background: transparent; }
    .btn-outline:hover, .btn-outline:focus-visible { border-color: var(--amber); color: var(--amber); outline: none; }
    .hero-panel { display: grid; gap: 12px; }
    .signal-card { padding: 20px; border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.06); border-radius: 18px; }
    .signal-card strong { display: block; color: #fff; font-size: 18px; margin-bottom: 4px; }
    .signal-card span { color: #bfc1b8; font-size: 13px; }
    .section { padding: 78px 0; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 28px; }
    .section-kicker { color: var(--amber-deep); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
    h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); line-height: 1.25; margin-bottom: 8px; font-weight: 820; }
    .section-intro { max-width: 650px; color: var(--muted); margin-bottom: 0; }
    .filter-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 16px; margin-bottom: 22px; background: var(--white); border: 1px solid var(--line); border-radius: 16px; }
    .filter-group { display: flex; gap: 7px; flex-wrap: wrap; }
    .filter-btn { border: 1px solid var(--line); background: var(--paper); color: var(--ink-soft); border-radius: 9px; padding: 6px 11px; font-size: 13px; }
    .filter-btn.active, .filter-btn:hover { background: var(--ink); color: var(--amber); border-color: var(--ink); }
    .main-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(260px, .75fr); gap: 28px; align-items: start; }
    .list-stack { display: grid; gap: 12px; }
    .list-item { display: grid; grid-template-columns: 58px minmax(0,1fr) auto; gap: 18px; align-items: center; padding: 22px; border: 1px solid var(--line); background: var(--white); border-radius: 17px; transition: .2s ease; }
    .list-item:hover { transform: translateY(-3px); border-color: #d5ae50; box-shadow: var(--shadow); }
    .list-no { color: var(--amber-deep); font-size: 25px; font-weight: 850; }
    .list-meta { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; margin-bottom: 5px; }
    .list-meta small { color: var(--muted); font-size: 12px; }
    .list-item h3 { margin-bottom: 4px; font-size: 19px; line-height: 1.4; }
    .list-item p { color: var(--muted); font-size: 14px; line-height: 1.75; margin-bottom: 0; }
    .arrow-link { color: var(--ink); font-weight: 800; font-size: 13px; white-space: nowrap; }
    .arrow-link:hover { color: var(--amber-deep); }
    .side-panel { position: sticky; top: 140px; display: grid; gap: 16px; }
    .side-card { padding: 23px; border-radius: 18px; background: var(--dark); color: #fff; }
    .side-card.light { background: #efede6; color: var(--ink); }
    .side-card h3 { margin-bottom: 12px; font-size: 18px; }
    .side-card p { color: #bfc1b8; font-size: 14px; line-height: 1.8; }
    .side-card.light p { color: var(--muted); }
    .check-list { display: grid; gap: 10px; padding: 0; margin: 0; list-style: none; }
    .check-list li { display: flex; gap: 9px; color: #e5e6de; font-size: 13px; }
    .check-list li::before { content: "✓"; color: var(--amber); font-weight: 800; }
    .topic-tags { display: flex; flex-wrap: wrap; gap: 7px; }
    .topic-tags a { padding: 5px 9px; border-radius: 8px; background: var(--white); border: 1px solid var(--line); color: var(--ink-soft); font-size: 12px; }
    .topic-tags a:hover { border-color: var(--amber-deep); color: var(--ink); }
    .notice { margin: 4px 0 20px; padding: 16px 19px; border-left: 4px solid var(--amber); background: #fff8e8; border-radius: 0 13px 13px 0; color: var(--ink-soft); font-size: 14px; }
    .faq-section { background: #eeece5; }
    .faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; }
    .faq-list { display: grid; gap: 10px; }
    details { background: var(--white); border: 1px solid var(--line); border-radius: 15px; padding: 17px 20px; }
    summary { cursor: pointer; font-weight: 750; list-style: none; display: flex; justify-content: space-between; gap: 15px; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; color: var(--amber-deep); font-size: 20px; line-height: 1; }
    details[open] summary::after { content: "−"; }
    details p { color: var(--muted); font-size: 14px; margin: 12px 27px 0 0; line-height: 1.85; }
    .cta { padding: 38px 42px; border-radius: 24px; background: var(--dark); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 25px; }
    .cta h2 { margin-bottom: 7px; color: #fff; }
    .cta p { color: #c8c9c1; margin-bottom: 0; font-size: 15px; }
    .footer { background: #1d1e1c; color: #fff; padding: 52px 0 25px; }
    .footer-grid { display: grid; grid-template-columns: 1.5fr .7fr .8fr; gap: 50px; padding-bottom: 38px; }
    .footer .brand-text { color: #fff; }
    .footer p { color: #aeb0a7; max-width: 410px; font-size: 13px; line-height: 1.9; margin: 18px 0 0; }
    .footer h3 { color: var(--amber); margin: 0 0 13px; font-size: 14px; }
    .footer a:not(.brand) { display: block; color: #bfc0b8; font-size: 13px; margin: 6px 0; }
    .footer a:not(.brand):hover { color: var(--amber); }
    .copyright { border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; color: #8e9088; font-size: 12px; }
    @media (max-width: 900px) {
      .header-note { display: none; }
      .hero-layout, .faq-grid { grid-template-columns: 1fr; gap: 32px; }
      .main-grid { grid-template-columns: 1fr; }
      .side-panel { position: static; grid-template-columns: 1fr 1fr; }
      .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; gap: 25px; }
    }
    @media (max-width: 640px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-main { min-height: 62px; }
      .brand-text { font-size: 15px; }
      .brand-mark { width: 32px; height: 32px; }
      .nav-toggle { display: block; }
      .nav-links { display: none; position: absolute; top: 62px; left: 16px; right: 16px; padding: 10px; background: var(--white); border: 1px solid var(--line); border-radius: 15px; box-shadow: var(--shadow); flex-direction: column; align-items: stretch; }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 11px 13px; }
      .channel-row { display: none; }
      .page-hero { padding: 52px 0 48px; }
      h1 { font-size: 2.35rem; }
      .section { padding: 56px 0; }
      .section-head { display: block; margin-bottom: 22px; }
      .section-head .btn { margin-top: 16px; }
      .filter-bar { display: block; }
      .search-box { margin-top: 13px; min-width: 0; }
      .list-item { grid-template-columns: 34px minmax(0,1fr); gap: 12px; padding: 18px; }
      .list-item .arrow-link { grid-column: 2; }
      .list-item h3 { font-size: 17px; }
      .side-panel { grid-template-columns: 1fr; }
      .cta { display: block; padding: 29px 23px; }
      .cta .btn { margin-top: 20px; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .footer-grid > div:first-child { grid-column: 1 / -1; }
    }

/* roulang page: category2 */
:root {
      --ink: #202321;
      --ink-soft: #4d544f;
      --muted: #737a73;
      --paper: #f7f6f1;
      --warm: #eab84f;
      --warm-deep: #bd8520;
      --mint: #a7d7c1;
      --line: #e5e2d8;
      --dark: #202523;
      --dark-2: #2b302d;
      --white: #fffefa;
      --radius-lg: 24px;
      --radius-md: 16px;
      --shadow: 0 16px 45px rgba(33, 36, 31, .09);
      --shadow-dark: 0 20px 60px rgba(0, 0, 0, .22);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background: var(--paper);
      color: var(--ink);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    button { cursor: pointer; }
    .container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 30;
      background: rgba(247, 246, 241, .9);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(229, 226, 216, .9);
      box-shadow: 0 5px 20px rgba(35, 38, 32, .04);
    }
    .header-main {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; }
    .brand-mark {
      display: grid;
      place-items: center;
      width: 38px;
      height: 38px;
      border-radius: 12px;
      color: var(--ink);
      background: var(--warm);
      font-weight: 900;
      box-shadow: 4px 4px 0 rgba(32, 35, 33, .12);
    }
    .brand-text { font-size: 17px; white-space: nowrap; letter-spacing: 0; }
    .nav-links { display: flex; align-items: center; gap: 5px; }
    .nav-links a {
      padding: 8px 14px;
      border-radius: 999px;
      color: var(--ink-soft);
      font-size: 14px;
      font-weight: 700;
      transition: .2s ease;
    }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--ink); background: #ebe9e0; }
    .nav-links a.active { color: var(--ink); background: var(--warm); }
    .header-tools { display: flex; align-items: center; gap: 10px; }
    .search-box {
      display: flex;
      align-items: center;
      gap: 8px;
      width: 222px;
      padding: 9px 13px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: var(--white);
      color: var(--muted);
    }
    .search-box span { font-size: 15px; }
    .search-box input {
      width: 100%;
      min-width: 0;
      border: 0;
      outline: 0;
      color: var(--ink);
      background: transparent;
      font-size: 13px;
    }
    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      background: var(--white);
      color: var(--ink);
      border-radius: 12px;
      padding: 8px 11px;
    }
    .page-hero {
      position: relative;
      overflow: hidden;
      padding: 76px 0 70px;
      background: var(--dark);
      color: var(--white);
    }
    .page-hero::before {
      content: "字幕  清晰  访问  说明";
      position: absolute;
      right: -30px;
      top: 22px;
      color: rgba(255,255,255,.045);
      font-size: clamp(46px, 8vw, 120px);
      font-weight: 900;
      line-height: 1.15;
      letter-spacing: 6px;
      transform: rotate(-8deg);
      pointer-events: none;
    }
    .hero-layout { display: grid; grid-template-columns: 1.08fr .92fr; gap: 64px; align-items: center; position: relative; z-index: 1; }
    .eyebrow, .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--warm);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
    }
    .eyebrow::before, .section-kicker::before { content: ""; width: 24px; height: 2px; background: currentColor; }
    .page-hero h1 { max-width: 680px; margin-top: 17px; font-size: clamp(34px, 5vw, 58px); line-height: 1.18; font-weight: 900; letter-spacing: 0; }
    .page-hero .lead { max-width: 600px; margin-top: 20px; color: #d9ddd8; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 10px 19px;
      border: 1px solid transparent;
      border-radius: 14px;
      font-size: 14px;
      font-weight: 800;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:focus-visible, .search-box:focus-within, .index-pill:focus-visible, summary:focus-visible { outline: 3px solid rgba(234,184,79,.55); outline-offset: 3px; }
    .btn-primary { background: var(--warm); color: var(--ink); box-shadow: 0 8px 22px rgba(234,184,79,.2); }
    .btn-primary:hover { background: #f3c966; box-shadow: 0 11px 28px rgba(234,184,79,.3); }
    .btn-ghost { border-color: rgba(255,255,255,.24); color: var(--white); background: rgba(255,255,255,.06); }
    .btn-ghost:hover { background: rgba(255,255,255,.13); }
    .hero-panel {
      padding: 25px;
      border: 1px solid rgba(255,255,255,.15);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.065);
      box-shadow: var(--shadow-dark);
    }
    .panel-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 17px; border-bottom: 1px solid rgba(255,255,255,.12); }
    .panel-title { font-size: 18px; font-weight: 850; }
    .status { color: var(--mint); font-size: 12px; font-weight: 800; }
    .step-list { list-style: none; margin-top: 15px; }
    .step-list li { display: grid; grid-template-columns: 32px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
    .step-list li:last-child { border-bottom: 0; }
    .step-no { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 9px; background: var(--warm); color: var(--ink); font-size: 13px; font-weight: 900; }
    .step-list strong { display: block; font-size: 14px; color: var(--white); }
    .step-list small { display: block; margin-top: 2px; color: #afb8b0; font-size: 12px; line-height: 1.6; }
    .section { padding: 84px 0; }
    .section-muted { background: #efeee8; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-head h2 { margin-top: 8px; font-size: clamp(26px, 3vw, 36px); line-height: 1.25; font-weight: 900; }
    .section-head p { max-width: 510px; color: var(--muted); font-size: 15px; }
    .index-bar { display: flex; flex-wrap: wrap; gap: 10px; padding: 15px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); box-shadow: 0 8px 24px rgba(40,42,35,.04); }
    .index-pill { padding: 8px 14px; border-radius: 999px; background: #f0eee6; color: var(--ink-soft); font-size: 13px; font-weight: 750; transition: .2s ease; }
    .index-pill:hover, .index-pill.current { color: var(--ink); background: var(--warm); }
    .group-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 32px; }
    .guide-group { padding: 27px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white); box-shadow: var(--shadow); }
    .group-top { display: flex; align-items: flex-start; gap: 15px; }
    .group-number { color: var(--warm-deep); font-size: 25px; font-weight: 900; line-height: 1; }
    .guide-group h3 { font-size: 21px; line-height: 1.35; font-weight: 850; }
    .guide-group p { margin-top: 10px; color: var(--muted); font-size: 14px; }
    .check-list { list-style: none; margin-top: 19px; display: grid; gap: 10px; }
    .check-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink-soft); font-size: 14px; }
    .check-list li::before { content: "✓"; flex: 0 0 auto; color: #398365; font-weight: 900; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
    .tag { padding: 4px 9px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted); background: #faf9f5; font-size: 12px; }
    .compare-wrap { overflow-x: auto; margin-top: 25px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white); box-shadow: var(--shadow); }
    .compare-table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    .compare-table th, .compare-table td { padding: 17px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
    .compare-table th { color: var(--ink); background: #e9e7de; font-size: 14px; font-weight: 850; }
    .compare-table td { color: var(--ink-soft); font-size: 14px; }
    .compare-table tr:last-child td { border-bottom: 0; }
    .compare-table td:first-child { color: var(--ink); font-weight: 800; }
    .recommend-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 24px; align-items: stretch; }
    .notice-card { padding: 30px; border-radius: var(--radius-lg); background: var(--dark); color: var(--white); }
    .notice-card h2 { font-size: 27px; line-height: 1.3; font-weight: 900; }
    .notice-card p { margin-top: 14px; color: #c5cbc5; font-size: 15px; }
    .notice-card .btn { margin-top: 25px; }
    .signal-list { display: grid; gap: 10px; }
    .signal-item { display: flex; gap: 15px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 15px; background: var(--white); }
    .signal-item b { color: var(--warm-deep); font-size: 18px; }
    .signal-item strong { display: block; font-size: 15px; }
    .signal-item span { display: block; margin-top: 2px; color: var(--muted); font-size: 13px; }
    .faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; }
    .faq-item { border: 1px solid var(--line); border-radius: 15px; background: var(--white); overflow: hidden; }
    .faq-item summary { padding: 18px 20px; color: var(--ink); font-size: 15px; font-weight: 800; cursor: pointer; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; float: right; color: var(--warm-deep); font-size: 20px; line-height: 1; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-answer { padding: 0 20px 19px; color: var(--muted); font-size: 14px; }
    .cta-band { padding: 42px; border-radius: var(--radius-lg); background: var(--warm); box-shadow: var(--shadow); display: flex; justify-content: space-between; align-items: center; gap: 30px; }
    .cta-band h2 { font-size: clamp(25px, 3vw, 35px); line-height: 1.25; font-weight: 900; }
    .cta-band p { max-width: 640px; margin-top: 9px; color: #54421f; font-size: 15px; }
    .cta-actions { display: flex; flex-wrap: wrap; gap: 10px; flex-shrink: 0; }
    .btn-dark { color: var(--white); background: var(--dark); }
    .btn-dark:hover { background: #343b36; }
    .btn-light { color: var(--ink); border-color: rgba(32,35,33,.2); background: rgba(255,255,255,.42); }
    .footer { padding: 54px 0 23px; background: var(--dark); color: #e8ece7; }
    .footer-grid { display: grid; grid-template-columns: 1.5fr .7fr .8fr; gap: 55px; }
    .footer .brand-text { color: var(--white); }
    .footer p { max-width: 410px; margin-top: 17px; color: #aeb6ae; font-size: 13px; }
    .footer h3 { margin-bottom: 13px; color: var(--warm); font-size: 14px; }
    .footer-grid > div > a:not(.brand) { display: block; width: fit-content; margin: 7px 0; color: #b9c0b9; font-size: 13px; }
    .footer-grid > div > a:not(.brand):hover { color: var(--warm); }
    .copyright { margin-top: 42px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); color: #8e9890; font-size: 12px; }
    @media (max-width: 900px) {
      .header-tools { display: none; }
      .nav-links { display: none; }
      .menu-toggle { display: block; }
      .header-main { min-height: 68px; }
      .hero-layout, .recommend-layout { grid-template-columns: 1fr; gap: 35px; }
      .hero-panel { max-width: 620px; }
      .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; gap: 28px; }
    }
    @media (max-width: 680px) {
      .container { width: min(100% - 32px, 1180px); }
      .brand-text { font-size: 14px; }
      .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
      .page-hero { padding: 55px 0 50px; }
      .page-hero h1 { font-size: 36px; }
      .page-hero .lead { font-size: 15px; }
      .section { padding: 58px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 12px; }
      .group-grid, .faq-grid { grid-template-columns: 1fr; }
      .guide-group { padding: 22px; }
      .cta-band { padding: 27px 22px; display: block; }
      .cta-actions { margin-top: 22px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
      .footer-grid > div:first-child { grid-column: 1 / -1; }
    }
    @media (max-width: 420px) {
      .hero-actions .btn, .cta-actions .btn { width: 100%; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-grid > div:first-child { grid-column: auto; }
    }

.mobile-nav { display: none; }
    @media (max-width: 900px) {
      body.menu-open .mobile-nav { display: block; border-top: 1px solid var(--line); background: var(--white); }
      .mobile-nav .container { display: flex; flex-direction: column; padding: 10px 0 14px; }
      .mobile-nav a { padding: 10px 4px; color: var(--ink-soft); font-size: 14px; font-weight: 750; border-bottom: 1px solid #f0eee8; }
      .mobile-nav a.active { color: var(--warm-deep); }
    }