* { margin: 0; padding: 0; box-sizing: border-box; }
  :root {
    --bg: #0c0a10;
    --bg-soft: #16121c;
    --card: #1c1723;
    --line: #2a2333;
    --text: #f2ece4;
    --muted: #a49aae;
    --accent: #ff6b2c;
    --accent-2: #ffb03a;
    --gold: #e8c07a;
  }
  body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  .wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }

  /* header */
  .site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(12,10,16,.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
  }
  .nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px; gap: 16px;
  }
  .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: .5px; }
  .brand img { height: 34px; width: 34px; border-radius: 8px; object-fit: cover; }
  .nav-links { display: none; gap: 22px; font-size: 15px; color: var(--muted); }
  .nav-links a:hover { color: var(--accent-2); }
  .nav-cta {
    display: none;
    background: linear-gradient(100deg, var(--accent), var(--accent-2));
    color: #1a0e05; font-weight: 700; font-size: 14px;
    padding: 9px 18px; border-radius: 999px;
  }

  /* hero */
  .hero { padding: 26px 0 8px; }
  .hero-main { display: grid; gap: 22px; }
  .hero-copy .eyebrow {
    display: inline-block; font-size: 12px; letter-spacing: 2px;
    color: var(--gold); border: 1px solid rgba(232,192,122,.4);
    padding: 4px 10px; border-radius: 999px; margin-bottom: 14px;
  }
  h1 { font-size: 30px; line-height: 1.35; letter-spacing: 1px; }
  h1 span { color: var(--accent-2); }
  .hero-copy p { color: var(--muted); margin-top: 14px; font-size: 15px; max-width: 34em; }
  .btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
  .btn-primary {
    background: linear-gradient(100deg, var(--accent), var(--accent-2));
    color: #1a0e05; font-weight: 700;
    padding: 13px 26px; border-radius: 999px; font-size: 15px;
    box-shadow: 0 8px 24px rgba(255,107,44,.28);
    transition: transform .2s ease;
    display: inline-block;
  }
  .btn-primary:hover { transform: translateY(-2px); }
  .btn-ghost {
    border: 1px solid var(--line); color: var(--text);
    padding: 13px 22px; border-radius: 999px; font-size: 15px;
    transition: border-color .2s;
    display: inline-block;
  }
  .btn-ghost:hover { border-color: var(--accent-2); }

  /* banner carousel */
  .banner {
    display: flex; gap: 16px; overflow-x: auto; margin-top: 6px;
    padding-bottom: 10px; scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  .banner::-webkit-scrollbar { display: none; }
  .banner-item {
    flex: 0 0 72%; scroll-snap-align: start;
    border-radius: 16px; overflow: hidden; position: relative;
    border: 1px solid var(--line);
  }
  .banner-item img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
  .banner-item .tag {
    position: absolute; left: 12px; top: 12px;
    background: rgba(12,10,16,.7); color: var(--accent-2);
    font-size: 12px; padding: 3px 10px; border-radius: 999px;
    border: 1px solid rgba(255,176,58,.4);
  }

  /* section common */
  section { padding: 44px 0; }
  .sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
  .sec-head h2 { font-size: 21px; letter-spacing: .5px; }
  .sec-head h2 em { font-style: normal; color: var(--accent-2); }
  .sec-head p { color: var(--muted); font-size: 13px; margin-top: 4px; }
  .sec-note { font-size: 13px; color: var(--muted); }

  /* card stream */
  .card-stream { display: flex; gap: 14px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: none; }
  .card-stream::-webkit-scrollbar { display: none; }
  .poster-card {
    flex: 0 0 46%; background: var(--card); border: 1px solid var(--line);
    border-radius: 14px; overflow: hidden; position: relative;
    transition: transform .22s ease, border-color .22s ease;
  }
  .poster-card:hover { transform: translateY(-4px); border-color: rgba(255,176,58,.45); }
  .poster-card img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
  .poster-card .meta { padding: 10px 12px 13px; }
  .poster-card .name { font-size: 15px; font-weight: 600; }
  .poster-card .sub { font-size: 12px; color: var(--muted); margin-top: 3px; }
  .poster-card .badge {
    display: inline-block; font-size: 11px; color: var(--accent-2);
    background: rgba(255,176,58,.12); border-radius: 4px;
    padding: 1px 7px; margin-top: 7px;
  }
  .poster-card .corner {
    position: absolute; right: 0; top: 0;
    background: var(--accent); color: #1a0e05;
    font-size: 11px; font-weight: 700; padding: 3px 9px;
    border-bottom-left-radius: 10px;
  }

  /* categories */
  .cat-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
  .cat-box {
    background: var(--bg-soft); border: 1px solid var(--line);
    border-radius: 14px; padding: 18px 18px 16px;
  }
  .cat-box h3 { font-size: 15px; color: var(--gold); margin-bottom: 10px; font-weight: 600; }
  .chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
  .chip {
    font-size: 13px; color: var(--muted); border: 1px solid var(--line);
    padding: 5px 13px; border-radius: 999px; background: rgba(255,255,255,.02);
    transition: color .2s, border-color .2s;
  }
  .chip:hover { color: var(--accent-2); border-color: rgba(255,176,58,.5); }

  /* rank list */
  .rank-list { display: grid; gap: 12px; }
  .rank-item {
    display: flex; gap: 14px; align-items: center;
    background: var(--card); border: 1px solid var(--line);
    border-radius: 14px; padding: 10px 14px 10px 10px;
  }
  .rank-item img { width: 58px; height: 76px; object-fit: cover; border-radius: 8px; flex: 0 0 auto; }
  .rank-num { font-size: 20px; font-weight: 800; color: var(--accent-2); width: 26px; flex: 0 0 auto; font-style: italic; }
  .rank-info { flex: 1; min-width: 0; }
  .rank-info .t { font-size: 15px; font-weight: 600; }
  .rank-info .d { font-size: 12px; color: var(--muted); margin-top: 3px; }
  .rank-tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
  .rank-tabs span {
    font-size: 13px; padding: 6px 15px; border-radius: 999px;
    border: 1px solid var(--line); color: var(--muted);
  }
  .rank-tabs span.on { background: rgba(255,107,44,.14); color: var(--accent-2); border-color: rgba(255,107,44,.5); }

  /* feature topic */
  .topic {
    display: grid; gap: 18px;
    background: var(--bg-soft); border: 1px solid var(--line);
    border-radius: 18px; overflow: hidden;
  }
  .topic img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
  .topic-body { padding: 4px 20px 24px; }
  .topic-body h3 { font-size: 19px; margin-bottom: 10px; }
  .topic-body p { color: var(--muted); font-size: 14px; }
  .topic-body .stack { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px; }

  /* analysis */
  .analysis-grid { display: grid; gap: 14px; }
  .analysis-card {
    background: var(--card); border: 1px solid var(--line);
    border-radius: 14px; padding: 20px;
  }
  .analysis-card h3 { font-size: 16px; color: var(--accent-2); margin-bottom: 8px; }
  .analysis-card p { font-size: 14px; color: var(--muted); }

  /* gallery */
  .gallery { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: none; }
  .gallery::-webkit-scrollbar { display: none; }
  .gallery figure { flex: 0 0 60%; }
  .gallery img { width: 100%; aspect-ratio: 3/4; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); }
  .gallery figcaption { font-size: 12px; color: var(--muted); margin-top: 7px; }

  /* download */
  .download {
    background: linear-gradient(140deg, #22161a, #1a1420 60%, #131019);
    border: 1px solid var(--line); border-radius: 20px;
    padding: 30px 22px; text-align: center;
  }
  .download h2 { font-size: 22px; margin-bottom: 10px; }
  .download p { color: var(--muted); font-size: 14px; max-width: 30em; margin: 0 auto 22px; }
  .download .tiny { font-size: 12px; color: #7d7288; margin-top: 16px; }

  /* footer */
  .site-footer {
    border-top: 1px solid var(--line);
    padding: 28px 0 34px; margin-top: 20px;
    font-size: 12px; color: #7f7689;
  }
  .footer-links { display: flex; flex-wrap: wrap; gap: 14px 20px; margin-bottom: 14px; }
  .footer-links a:hover { color: var(--accent-2); }
  .site-footer p { margin-bottom: 6px; }
  .site-footer a.beian { color: #7f7689; }
  .site-footer a.beian:hover { color: var(--accent-2); }

  @media (min-width: 768px) {
    .nav-links { display: flex; }
    .nav-cta { display: inline-block; }
    h1 { font-size: 40px; }
    .hero-main { grid-template-columns: 1.05fr .95fr; align-items: center; }
    .banner-item { flex: 0 0 40%; }
    .poster-card { flex: 0 0 29%; }
    .cat-grid { grid-template-columns: repeat(3, 1fr); }
    .rank-list { grid-template-columns: 1fr 1fr; }
    .topic { grid-template-columns: .9fr 1.1fr; align-items: center; }
    .topic img { aspect-ratio: 4/3; height: 100%; }
    .topic-body { padding: 18px 26px 24px 4px; }
    .analysis-grid { grid-template-columns: repeat(3, 1fr); }
    .gallery figure { flex: 0 0 30%; }
    .download { padding: 46px 30px; }
  }
  @media (min-width: 1024px) {
    .hero { padding: 40px 0 12px; }
    h1 { font-size: 46px; }
    .banner-item { flex: 0 0 31%; }
    .poster-card { flex: 0 0 22.5%; }
    .rank-list { grid-template-columns: repeat(3, 1fr); }
    section { padding: 60px 0; }
  }