/* roulang page: index */
:root {
      --ink: #172b3c;
      --ink-soft: #496176;
      --muted: #77899a;
      --blue: #1769aa;
      --blue-dark: #105384;
      --blue-pale: #e8f3fb;
      --teal: #168b86;
      --teal-pale: #e6f5f2;
      --coral: #d76c50;
      --coral-pale: #fff0eb;
      --surface: #ffffff;
      --canvas: #f4f8fc;
      --line: #e1eaf1;
      --line-strong: #d0dce6;
      --shadow: 0 12px 32px rgba(31, 62, 89, .075);
      --shadow-hover: 0 18px 38px rgba(31, 62, 89, .13);
      --radius: 8px;
      --radius-lg: 12px;
      --container: 1200px;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    body {
      margin: 0;
      background: var(--canvas);
      color: var(--ink);
      font-family: "Noto Sans SC", "DM Sans", sans-serif;
      font-size: 15px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; transition: color .2s ease, background-color .2s ease, transform .2s ease, box-shadow .2s ease; }
    img { display: block; max-width: 100%; }
    button, input { font: inherit; }
    button:focus-visible, a:focus-visible, input:focus-visible, summary:focus-visible {
      outline: 3px solid rgba(22, 139, 134, .45);
      outline-offset: 3px;
    }
    .container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, .96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(14px);
    }
    .nav-shell { min-height: 76px; display: flex; align-items: center; gap: 32px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; color: var(--ink); font-weight: 800; }
    .brand-mark {
      display: grid;
      place-items: center;
      width: 38px;
      height: 38px;
      border-radius: 8px;
      color: #fff;
      background: var(--blue);
      box-shadow: 0 5px 14px rgba(23, 105, 170, .22);
    }
    .brand-name { font-size: 16px; line-height: 1.25; }
    .site-nav { display: flex; align-items: center; gap: 5px; margin-left: auto; }
    .site-nav a {
      padding: 9px 13px;
      border-radius: 6px;
      color: var(--ink-soft);
      font-size: 13px;
      font-weight: 600;
      white-space: nowrap;
    }
    .site-nav a:hover, .site-nav a.active { color: var(--blue); background: var(--blue-pale); }
    .nav-end { display: flex; align-items: center; gap: 11px; }
    .nav-search {
      width: 188px;
      height: 39px;
      margin: 0;
      padding: 0 12px;
      border: 1px solid var(--line);
      border-radius: 6px;
      background: #f8fbfd;
      box-shadow: none;
      color: var(--ink);
      font-size: 12px;
    }
    .nav-search::placeholder { color: #8b9baa; }
    .nav-search:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(23,105,170,.1); }
    .menu-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border: 1px solid var(--line);
      border-radius: 6px;
      color: var(--ink);
      background: var(--surface);
      cursor: pointer;
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 48px 0 38px;
      background: #eaf3f9;
      border-bottom: 1px solid var(--line);
    }
    .hero::before {
      position: absolute;
      inset: 0;
      content: "";
      background: linear-gradient(90deg, rgba(234,243,249,.98) 0%, rgba(234,243,249,.9) 43%, rgba(234,243,249,.1) 100%), url("https://images.unsplash.com/photo-1480796927426-f609979314bd?auto=format&fit=crop&w=2000&q=85") center 49% / cover;
    }
    .hero-inner { position: relative; z-index: 1; }
    .hero-topline { display: flex; align-items: center; gap: 9px; margin-bottom: 17px; color: var(--blue-dark); font-size: 12px; font-weight: 700; }
    .hero-topline i { color: var(--teal); }
    .hero h1 { max-width: 760px; margin: 0; color: var(--ink); font-size: clamp(34px, 4.1vw, 52px); font-weight: 800; line-height: 1.23; }
    .hero h1 .highlight { color: var(--blue); }
    .hero-subtitle { margin: 14px 0 8px; color: var(--ink-soft); font-size: 19px; font-weight: 600; }
    .hero-copy { max-width: 670px; margin: 0; color: #526b80; font-size: 14px; line-height: 1.9; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 21px; }
    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 43px;
      padding: 0 17px;
      border: 1px solid transparent;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
    }
    .button:hover { transform: translateY(-2px); }
    .button-primary { color: white; background: var(--blue); box-shadow: 0 7px 16px rgba(23,105,170,.18); }
    .button-primary:hover { color: white; background: var(--blue-dark); box-shadow: 0 10px 22px rgba(23,105,170,.24); }
    .button-secondary { color: var(--blue-dark); background: white; border-color: #c8d9e6; }
    .button-secondary:hover { color: var(--blue-dark); background: #f8fcff; border-color: var(--blue); }
    .hero-foot { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 19px; color: #506b80; font-size: 11px; font-weight: 600; }
    .hero-foot span { display: inline-flex; align-items: center; gap: 7px; }
    .hero-foot i { color: var(--teal); }
    .hero-stacks { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 14px; max-width: 510px; margin: 28px 0 0 auto; }
    .hero-poster {
      position: relative;
      overflow: hidden;
      min-height: 162px;
      border: 1px solid rgba(255,255,255,.8);
      border-radius: var(--radius-lg);
      background: #d8e8ee;
      box-shadow: var(--shadow);
    }
    .hero-poster img { width: 100%; height: 100%; min-height: 162px; object-fit: cover; }
    .hero-poster-main { min-height: 206px; }
    .hero-poster-main img { min-height: 206px; }
    .hero-poster-side { transform: translateY(16px); }
    .poster-caption {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      padding: 26px 13px 11px;
      color: #fff;
      background: linear-gradient(transparent, rgba(13,32,45,.82));
      font-size: 12px;
      font-weight: 700;
    }
    .poster-caption small { display: block; color: rgba(255,255,255,.8); font-size: 10px; font-weight: 500; }

    .section { padding: 56px 0; }
    .section-white { background: var(--surface); }
    .section-tint { background: #edf4f8; }
    .section-line { border-top: 1px solid var(--line); }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
    .section-kicker { display: inline-flex; align-items: center; gap: 7px; margin-bottom: 7px; color: var(--teal); font-size: 11px; font-weight: 700; }
    .section-kicker i { font-size: 10px; }
    .section-title { margin: 0; color: var(--ink); font-size: 25px; font-weight: 800; line-height: 1.35; }
    .section-desc { max-width: 720px; margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
    .section-link { display: inline-flex; align-items: center; gap: 8px; flex: 0 0 auto; color: var(--blue); font-size: 12px; font-weight: 700; }
    .section-link:hover { color: var(--blue-dark); gap: 11px; }
    .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
    .metric {
      display: flex;
      align-items: center;
      gap: 14px;
      min-height: 95px;
      padding: 17px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: 0 5px 15px rgba(31,62,89,.035);
    }
    .metric-icon { display: grid; place-items: center; flex: 0 0 42px; width: 42px; height: 42px; border-radius: 7px; color: var(--blue); background: var(--blue-pale); }
    .metric:nth-child(2) .metric-icon { color: var(--teal); background: var(--teal-pale); }
    .metric:nth-child(3) .metric-icon { color: var(--coral); background: var(--coral-pale); }
    .metric strong { display: block; color: var(--ink); font-size: 22px; line-height: 1.2; }
    .metric span { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; }

    .feature-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 19px; }
    .feature-panel {
      position: relative;
      overflow: hidden;
      min-height: 286px;
      padding: 28px;
      border: 1px solid #d9e7ef;
      border-radius: var(--radius-lg);
      background: var(--surface);
      box-shadow: var(--shadow);
    }
    .feature-panel.primary-panel { color: white; background: #1769aa; border-color: #1769aa; }
    .primary-panel::after {
      position: absolute;
      right: -20px;
      bottom: -45px;
      width: 230px;
      height: 230px;
      content: "";
      border: 1px solid rgba(255,255,255,.16);
      border-radius: 50%;
      box-shadow: 0 0 0 25px rgba(255,255,255,.045), 0 0 0 55px rgba(255,255,255,.035);
    }
    .feature-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 17px; border-radius: 7px; color: var(--blue); background: var(--blue-pale); }
    .primary-panel .feature-icon { color: white; background: rgba(255,255,255,.15); }
    .feature-panel h3 { position: relative; z-index: 1; margin: 0 0 9px; font-size: 20px; font-weight: 800; }
    .feature-panel p { position: relative; z-index: 1; max-width: 520px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
    .primary-panel p { color: rgba(255,255,255,.82); }
    .feature-points { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
    .feature-points span { padding: 5px 9px; border: 1px solid rgba(255,255,255,.25); border-radius: 5px; color: #fff; font-size: 10px; }
    .mini-feature-list { display: grid; gap: 12px; margin-top: 18px; }
    .mini-feature { display: flex; gap: 11px; align-items: flex-start; padding-top: 12px; border-top: 1px solid var(--line); }
    .mini-feature i { margin-top: 4px; color: var(--teal); }
    .mini-feature strong { display: block; color: var(--ink); font-size: 12px; }
    .mini-feature span { display: block; margin-top: 2px; color: var(--muted); font-size: 11px; }

    .compare-wrap { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: white; box-shadow: var(--shadow); }
    .compare-head, .compare-row { display: grid; grid-template-columns: 1.25fr .9fr .9fr; align-items: center; }
    .compare-head { color: white; background: #204b68; font-size: 12px; font-weight: 700; }
    .compare-head > div, .compare-row > div { padding: 13px 18px; }
    .compare-row { border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 12px; }
    .compare-row:nth-child(odd) { background: #fbfdfe; }
    .compare-row strong { color: var(--ink); font-weight: 700; }
    .compare-good { color: var(--teal); font-weight: 700; }
    .compare-neutral { color: #8998a5; }

    .timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
    .milestone { position: relative; padding: 0 19px 0 0; }
    .milestone:not(:last-child)::after { position: absolute; top: 15px; left: 29px; right: 0; height: 1px; content: ""; background: #cbdce6; }
    .milestone-dot { position: relative; z-index: 1; display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid #b9d1df; border-radius: 50%; color: var(--blue); background: white; font-size: 11px; font-weight: 800; }
    .milestone time { display: block; margin-top: 14px; color: var(--teal); font-size: 10px; font-weight: 700; }
    .milestone h3 { margin: 4px 0 5px; color: var(--ink); font-size: 13px; font-weight: 700; }
    .milestone p { max-width: 230px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; }

    .poster-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 17px 14px; }
    .poster-card { min-width: 0; }
    .poster-image { position: relative; overflow: hidden; aspect-ratio: 3 / 4; border-radius: 7px; background: #dce8ee; box-shadow: 0 6px 15px rgba(31,62,89,.09); }
    .poster-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
    .poster-card:hover .poster-image img { transform: scale(1.045); }
    .poster-image::after { position: absolute; inset: 35% 0 0; content: ""; background: linear-gradient(transparent, rgba(14,33,49,.3)); pointer-events: none; }
    .badge { position: absolute; z-index: 2; top: 9px; left: 9px; padding: 4px 7px; border-radius: 4px; color: white; background: var(--blue); font-size: 9px; font-weight: 700; line-height: 1.4; }
    .badge.teal { background: var(--teal); }
    .badge.coral { background: var(--coral); }
    .poster-meta { padding: 9px 1px 0; }
    .poster-title { overflow: hidden; margin: 0; color: var(--ink); font-size: 12px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
    .poster-sub { display: flex; align-items: center; justify-content: space-between; gap: 5px; margin-top: 3px; color: var(--muted); font-size: 10px; }
    .rating { display: inline-flex; align-items: center; gap: 4px; color: #b27822; font-weight: 700; }
    .rating i { font-size: 9px; }
    .featured-recommendations { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; }
    .recommend-main {
      position: relative;
      display: flex;
      align-items: end;
      min-height: 300px;
      overflow: hidden;
      border-radius: var(--radius-lg);
      color: white;
      background: #294c5c;
      box-shadow: var(--shadow);
    }
    .recommend-main img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .recommend-main::after { position: absolute; inset: 0; content: ""; background: linear-gradient(0deg, rgba(12,29,40,.88), rgba(12,29,40,.03) 70%); }
    .recommend-copy { position: relative; z-index: 1; padding: 25px; }
    .recommend-copy .badge { position: static; display: inline-block; margin-bottom: 12px; }
    .recommend-copy h3 { margin: 0 0 7px; color: white; font-size: 22px; font-weight: 800; }
    .recommend-copy p { max-width: 460px; margin: 0; color: rgba(255,255,255,.83); font-size: 12px; }
    .recommend-side { display: grid; gap: 12px; }
    .recommend-row { display: flex; gap: 13px; align-items: center; padding: 11px; border: 1px solid var(--line); border-radius: var(--radius); background: white; transition: box-shadow .2s ease, transform .2s ease; }
    .recommend-row:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
    .recommend-thumb { flex: 0 0 75px; width: 75px; height: 69px; overflow: hidden; border-radius: 5px; background: #e1ebef; }
    .recommend-thumb img { width: 100%; height: 100%; object-fit: cover; }
    .recommend-row h3 { margin: 0 0 4px; color: var(--ink); font-size: 12px; font-weight: 700; }
    .recommend-row p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.65; }

    .topic-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: center; }
    .topic-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .topic-item { display: flex; align-items: center; gap: 11px; min-height: 78px; padding: 12px; border: 1px solid var(--line); border-radius: 7px; background: white; transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease; }
    .topic-item:hover { transform: translateY(-2px); border-color: #b7d2e2; box-shadow: 0 8px 20px rgba(31,62,89,.07); }
    .topic-icon { display: grid; place-items: center; flex: 0 0 37px; width: 37px; height: 37px; border-radius: 6px; color: var(--blue); background: var(--blue-pale); }
    .topic-item:nth-child(2n) .topic-icon { color: var(--teal); background: var(--teal-pale); }
    .topic-item h3 { margin: 0; color: var(--ink); font-size: 12px; font-weight: 700; }
    .topic-item p { margin: 3px 0 0; color: var(--muted); font-size: 10px; line-height: 1.55; }
    .topic-note { padding: 23px; border-left: 3px solid var(--teal); background: #e7f3f2; }
    .topic-note h3 { margin: 0 0 8px; color: var(--ink); font-size: 17px; font-weight: 800; }
    .topic-note p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.9; }
    .topic-note .topic-stat { display: flex; gap: 21px; margin-top: 18px; padding-top: 14px; border-top: 1px solid rgba(22,139,134,.2); }
    .topic-stat strong { display: block; color: var(--teal); font-size: 17px; }
    .topic-stat span { color: var(--muted); font-size: 10px; }

    .ranking-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 35px; }
    .rank-row { display: grid; grid-template-columns: 37px minmax(0,1fr) auto; align-items: center; gap: 10px; min-height: 61px; border-bottom: 1px solid var(--line); }
    .rank-no { color: #a0afbb; font-size: 17px; font-weight: 800; }
    .rank-row:nth-child(-n+3) .rank-no { color: var(--coral); }
    .rank-title { overflow: hidden; color: var(--ink); font-size: 12px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
    .rank-label { display: inline-block; margin-left: 7px; padding: 2px 5px; border-radius: 3px; color: var(--blue); background: var(--blue-pale); font-size: 9px; font-weight: 600; vertical-align: 1px; }
    .rank-data { text-align: right; white-space: nowrap; }
    .rank-data strong { display: block; color: var(--ink-soft); font-size: 11px; }
    .rank-data span { color: var(--muted); font-size: 9px; }

    .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .news-card { display: grid; grid-template-columns: 100px 1fr; gap: 13px; min-height: 105px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: white; transition: transform .2s ease, box-shadow .2s ease; }
    .news-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
    .news-card img { width: 100px; height: 80px; border-radius: 5px; object-fit: cover; }
    .news-card time { color: var(--teal); font-size: 9px; font-weight: 700; }
    .news-card h3 { margin: 4px 0 0; color: var(--ink); font-size: 11px; font-weight: 700; line-height: 1.65; }
    .news-card p { margin: 3px 0 0; color: var(--muted); font-size: 9px; line-height: 1.6; }

    .trust-band { display: grid; grid-template-columns: 1.05fr 1.95fr; gap: 33px; align-items: center; padding: 26px 28px; border: 1px solid #d7e8e7; border-radius: var(--radius-lg); background: #f0f8f7; }
    .trust-band h2 { margin: 0 0 5px; color: var(--ink); font-size: 19px; font-weight: 800; }
    .trust-band p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.8; }
    .trust-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .trust-point { display: flex; gap: 9px; align-items: flex-start; }
    .trust-point i { margin-top: 4px; color: var(--teal); }
    .trust-point strong { display: block; color: var(--ink); font-size: 11px; }
    .trust-point span { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; line-height: 1.6; }

    .faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 35px; }
    .faq-intro h2 { margin: 0 0 9px; color: var(--ink); font-size: 23px; font-weight: 800; }
    .faq-intro p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.9; }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list details:first-child { border-top: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 15px 34px 15px 0; color: var(--ink); font-size: 12px; font-weight: 700; cursor: pointer; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { position: absolute; top: 13px; right: 4px; content: "+"; color: var(--teal); font-size: 20px; font-weight: 400; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { margin: -3px 25px 15px 0; color: var(--muted); font-size: 11px; line-height: 1.9; }

    .closing-band { padding: 40px 0; color: white; background: #204b68; }
    .closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
    .closing-inner h2 { margin: 0 0 5px; color: white; font-size: 22px; font-weight: 800; }
    .closing-inner p { max-width: 690px; margin: 0; color: rgba(255,255,255,.76); font-size: 12px; }
    .closing-inner .button { flex: 0 0 auto; color: var(--blue-dark); background: white; }
    .closing-inner .button:hover { background: #eff8fc; }

    .site-footer { padding: 42px 0 20px; background: #f8fbfd; border-top: 1px solid var(--line); }
    .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 34px; padding-bottom: 28px; }
    .footer-brand-copy { max-width: 290px; margin: 12px 0 0; color: var(--muted); font-size: 11px; line-height: 1.85; }
    .footer-col h3 { margin: 2px 0 12px; color: var(--ink); font-size: 12px; font-weight: 800; }
    .footer-links { display: grid; gap: 8px; }
    .footer-links a { width: fit-content; color: var(--muted); font-size: 11px; }
    .footer-links a:hover { color: var(--blue); }
    .footer-note { color: var(--muted); font-size: 10px; line-height: 1.8; }
    .copyright { display: flex; justify-content: space-between; gap: 18px; padding-top: 15px; border-top: 1px solid var(--line); color: #8b9aa6; font-size: 10px; }
    .copyright a { color: #718596; }
    .copyright a:hover { color: var(--blue); }

    @media (max-width: 1024px) {
      .nav-shell { gap: 18px; }
      .site-nav a { padding-inline: 9px; font-size: 12px; }
      .nav-search { width: 150px; }
      .poster-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-stacks { max-width: 440px; }
    }
    @media (max-width: 768px) {
      .container { width: min(100% - 34px, var(--container)); }
      .nav-shell { min-height: 66px; flex-wrap: wrap; gap: 0; }
      .brand-name { font-size: 14px; }
      .brand-mark { width: 35px; height: 35px; }
      .menu-toggle { display: grid; place-items: center; margin-left: auto; }
      .nav-end { display: none; }
      .site-nav { display: none; order: 3; width: 100%; margin: 0; padding: 8px 0 13px; border-top: 1px solid var(--line); }
      .site-nav.is-open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .site-nav a { padding: 9px 10px; text-align: center; }
      .hero { padding: 38px 0 32px; }
      .hero::before { background: linear-gradient(90deg, rgba(234,243,249,.98), rgba(234,243,249,.88) 68%, rgba(234,243,249,.54)), url("https://images.unsplash.com/photo-1480796927426-f609979314bd?auto=format&fit=crop&w=1400&q=80") center / cover; }
      .hero h1 { max-width: 600px; font-size: 37px; }
      .hero-stacks { max-width: 490px; margin: 25px 0 0 auto; }
      .section { padding: 43px 0; }
      .feature-grid, .featured-recommendations, .topic-layout, .faq-layout { grid-template-columns: 1fr; }
      .feature-panel { min-height: unset; }
      .topic-note { order: -1; }
      .ranking-grid { gap: 0 22px; }
      .trust-band { grid-template-columns: 1fr; gap: 20px; }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 520px) {
      .container { width: min(100% - 28px, var(--container)); }
      .brand-name { max-width: 225px; font-size: 12px; }
      .hero { padding-top: 32px; }
      .hero-topline { margin-bottom: 12px; }
      .hero h1 { font-size: 32px; }
      .hero-subtitle { font-size: 16px; }
      .hero-copy { font-size: 12px; }
      .hero-actions { gap: 8px; }
      .button { min-height: 41px; padding-inline: 13px; font-size: 11px; }
      .hero-foot { gap: 11px 16px; font-size: 10px; }
      .hero-stacks { grid-template-columns: 1.1fr .9fr; gap: 9px; margin-top: 22px; }
      .hero-poster, .hero-poster img { min-height: 125px; }
      .hero-poster-main, .hero-poster-main img { min-height: 160px; }
      .hero-poster-side { transform: translateY(9px); }
      .poster-caption { padding: 22px 9px 8px; font-size: 10px; }
      .section { padding: 36px 0; }
      .section-head { align-items: flex-start; gap: 10px; margin-bottom: 19px; }
      .section-title { font-size: 21px; }
      .section-desc { font-size: 11px; }
      .section-link { margin-top: 7px; font-size: 10px; }
      .metric-grid { grid-template-columns: repeat(2, 1fr); gap: 9px; }
      .metric { min-height: 78px; gap: 9px; padding: 11px; }
      .metric-icon { flex-basis: 34px; width: 34px; height: 34px; font-size: 12px; }
      .metric strong { font-size: 18px; }
      .metric span { font-size: 9px; }
      .feature-panel { padding: 21px; }
      .compare-head > div, .compare-row > div { padding: 10px 8px; }
      .compare-head, .compare-row { grid-template-columns: 1.05fr .95fr .95fr; font-size: 10px; }
      .timeline { grid-template-columns: repeat(2, 1fr); gap: 22px 13px; }
      .milestone:nth-child(2)::after { display: none; }
      .milestone p { font-size: 10px; }
      .poster-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px 10px; }
      .poster-title { font-size: 11px; }
      .poster-sub { font-size: 9px; }
      .recommend-main { min-height: 240px; }
      .recommend-copy { padding: 19px; }
      .topic-grid { gap: 8px; }
      .topic-item { align-items: flex-start; min-height: 88px; gap: 8px; padding: 10px 8px; }
      .topic-icon { flex-basis: 31px; width: 31px; height: 31px; font-size: 11px; }
      .topic-item h3 { font-size: 11px; }
      .topic-item p { font-size: 9px; }
      .ranking-grid { grid-template-columns: 1fr; }
      .rank-row { min-height: 55px; }
      .news-grid { grid-template-columns: 1fr; gap: 9px; }
      .news-card { grid-template-columns: 88px 1fr; min-height: 94px; }
      .news-card img { width: 88px; height: 70px; }
      .trust-band { padding: 20px; }
      .trust-points { grid-template-columns: 1fr; gap: 11px; }
      .closing-inner { align-items: flex-start; flex-direction: column; }
      .closing-inner h2 { font-size: 19px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px 17px; }
      .footer-grid > :first-child { grid-column: 1 / -1; }
      .copyright { flex-direction: column; gap: 5px; }
    }