:root {
    --bg: #121212;
    --bg-soft: #1c1c1e;
    --bg-card: #26262a;
    --text: #f5f5f5;
    --text-dim: #a8a8ad;
    --brand: #e63946;
    --brand-glow: #ff5a65;
    --border: #333338;
    --radius: 12px;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }

  /* 顶部导航 */
  .site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(18,18,18,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }
  .header-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 16px;
    display: flex; align-items: center; justify-content: space-between;
    height: 60px; gap: 12px;
  }
  .brand-box { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .brand-box img { height: 32px; width: auto; border-radius: 6px; }
  .brand-name { font-size: 17px; font-weight: 700; letter-spacing: 0.5px; }
  .nav-links { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a {
    font-size: 14px; color: var(--text-dim); padding: 6px 12px;
    border-radius: 20px; white-space: nowrap; transition: color .2s, background .2s;
  }
  .nav-links a:hover, .nav-links a:focus-visible { color: #fff; background: var(--bg-card); }
  .header-dl {
    display: inline-block; padding: 8px 16px; border-radius: 24px;
    background: linear-gradient(135deg, var(--brand), #ff6b55);
    color: #fff; font-size: 14px; font-weight: 600; white-space: nowrap;
    flex-shrink: 0;
  }

  /* 首屏 */
  .hero {
    position: relative; overflow: hidden;
    background: radial-gradient(ellipse at 70% 0%, #3a1418 0%, var(--bg) 60%);
    padding: 48px 16px 56px;
  }
  .hero-inner {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr; gap: 36px; align-items: center;
  }
  .hero-copy { text-align: left; }
  .hero-tag {
    display: inline-block; font-size: 13px; color: var(--brand-glow);
    background: rgba(230,57,70,0.12); border: 1px solid rgba(230,57,70,0.3);
    padding: 4px 12px; border-radius: 16px; margin-bottom: 16px;
  }
  .hero h1 {
    font-size: 30px; line-height: 1.3; font-weight: 800;
    margin-bottom: 16px; letter-spacing: 0.5px;
  }
  .hero h1 span { color: var(--brand-glow); }
  .hero-desc {
    font-size: 15px; color: var(--text-dim); margin-bottom: 20px; max-width: 520px;
  }
  .dl-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
  .dl-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 24px; border-radius: 10px; font-size: 15px; font-weight: 600;
    transition: transform .2s, box-shadow .2s;
  }
  .dl-btn:hover { transform: translateY(-2px); }
  .dl-btn-android {
    background: linear-gradient(135deg, var(--brand), #ff6b55);
    color: #fff; box-shadow: 0 6px 18px rgba(230,57,70,0.35);
  }
  .dl-btn-ios {
    background: var(--bg-card); color: var(--text);
    border: 1px solid var(--border);
  }
  .hero-note { font-size: 13px; color: var(--text-dim); }

  /* 首屏滚动海报 */
  .poster-strip { width: 100%; overflow: hidden; padding-top: 8px; }
  .poster-track {
    display: flex; gap: 12px; width: max-content;
    animation: marquee 30s linear infinite;
  }
  .poster-strip:hover .poster-track { animation-play-state: paused; }
  .poster-track img {
    width: 120px; height: 168px; object-fit: cover;
    border-radius: 8px; border: 1px solid var(--border);
  }
  @keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }

  /* 通用区块 */
  .section { padding: 52px 16px; }
  .section-inner { max-width: 1200px; margin: 0 auto; }
  .section-head { margin-bottom: 28px; }
  .section-head h2 {
    font-size: 23px; font-weight: 800; margin-bottom: 8px;
  }
  .section-head p { font-size: 14px; color: var(--text-dim); max-width: 640px; }
  .section-alt { background: var(--bg-soft); }

  /* 今日更新 */
  .update-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
  }
  .update-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
    display: flex; flex-direction: column;
  }
  .update-card img {
    width: 100%; aspect-ratio: 3/4; object-fit: cover;
  }
  .update-body { padding: 10px 12px 14px; }
  .update-body h3 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
  .update-body p { font-size: 12.5px; color: var(--text-dim); }

  /* 排行榜 */
  .rank-list { display: flex; flex-direction: column; gap: 12px; }
  .rank-item {
    display: flex; align-items: center; gap: 14px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 12px;
  }
  .rank-num {
    font-size: 20px; font-weight: 800; color: var(--brand-glow);
    width: 30px; text-align: center; flex-shrink: 0;
  }
  .rank-item img {
    width: 56px; height: 76px; object-fit: cover;
    border-radius: 6px; flex-shrink: 0;
  }
  .rank-info { flex: 1; min-width: 0; }
  .rank-info h3 { font-size: 15px; font-weight: 700; margin-bottom: 3px; }
  .rank-info p { font-size: 12.5px; color: var(--text-dim); }
  .rank-score {
    font-size: 13px; color: var(--brand-glow); font-weight: 700;
    flex-shrink: 0;
  }

  /* 追剧日历 */
  .calendar-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
  }
  .cal-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 14px;
  }
  .cal-day {
    font-size: 12px; color: var(--brand-glow); font-weight: 700;
    margin-bottom: 8px; letter-spacing: 1px;
  }
  .cal-card h3 { font-size: 14.5px; font-weight: 700; margin-bottom: 4px; }
  .cal-card p { font-size: 12.5px; color: var(--text-dim); }

  /* 制作流程 */
  .flow-grid { display: flex; flex-direction: column; gap: 14px; }
  .flow-card {
    display: flex; gap: 14px; align-items: flex-start;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 16px;
  }
  .flow-step {
    width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
    background: rgba(230,57,70,0.15); color: var(--brand-glow);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 15px;
  }
  .flow-text h3 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
  .flow-text p { font-size: 13px; color: var(--text-dim); }

  /* 剧集剧照墙 */
  .gallery-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
  }
  .gallery-grid img {
    width: 100%; aspect-ratio: 3/4; object-fit: cover;
    border-radius: var(--radius); border: 1px solid var(--border);
    transition: transform .25s;
  }
  .gallery-grid img:hover { transform: scale(1.03); }

  /* 客厅小贴士 */
  .tips-grid { display: grid; grid-template-columns: 1fr; gap: 14px; }
  .tip-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 18px;
  }
  .tip-card h3 { font-size: 15.5px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
  .tip-card p { font-size: 13.5px; color: var(--text-dim); }

  /* 证书 */
  .cert-box {
    display: flex; flex-direction: column; gap: 16px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 22px;
  }
  .cert-box h2 { font-size: 22px; font-weight: 800; }
  .cert-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
  .cert-list li {
    font-size: 14px; color: var(--text-dim);
    padding-left: 22px; position: relative;
  }
  .cert-list li::before {
    content: "✦"; position: absolute; left: 0; color: var(--brand-glow);
    font-size: 13px;
  }

  /* FAQ */
  .faq-list { display: flex; flex-direction: column; gap: 10px; }
  .faq-item {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 14px 16px;
  }
  .faq-item h3 {
    font-size: 14.5px; font-weight: 700; margin-bottom: 6px;
    display: flex; justify-content: space-between; gap: 10px;
  }
  .faq-item p { font-size: 13px; color: var(--text-dim); }

  /* 下载区 */
  .dl-panel {
    background: linear-gradient(135deg, #3a1418 0%, #1c1c1e 70%);
    border: 1px solid rgba(230,57,70,0.3);
    border-radius: 18px; padding: 32px 22px; text-align: center;
  }
  .dl-panel h2 { font-size: 24px; font-weight: 800; margin-bottom: 10px; }
  .dl-panel p { font-size: 14px; color: var(--text-dim); margin-bottom: 20px; }
  .dl-panel .dl-row { justify-content: center; }

  /* 页脚 */
  .site-footer {
    border-top: 1px solid var(--border);
    padding: 28px 16px 34px; text-align: center;
  }
  .footer-inner { max-width: 1000px; margin: 0 auto; }
  .footer-copy { font-size: 12.5px; color: #77777c; margin-bottom: 8px; line-height: 1.8; }
  .footer-time { font-size: 12px; color: #66666b; margin-bottom: 8px; }
  .footer-beian { font-size: 12px; color: #66666b; }
  .footer-beian a { color: #88888d; }
  .footer-beian a:hover { color: var(--brand-glow); }
  .footer-searches {
    margin-top: 18px; font-size: 12px; color: #5c5c61;
    line-height: 2; word-break: break-all;
  }
  .footer-searches span { margin: 0 6px; }

  /* 768px 断点 */
  @media (min-width: 768px) {
    .hero { padding: 64px 24px 72px; }
    .hero h1 { font-size: 38px; }
    .hero-desc { font-size: 16px; }
    .hero-inner { grid-template-columns: 1.1fr 0.9fr; }
    .poster-track img { width: 140px; height: 196px; }
    .update-grid { grid-template-columns: repeat(3, 1fr); }
    .calendar-grid { grid-template-columns: repeat(3, 1fr); }
    .flow-grid { flex-direction: row; flex-wrap: wrap; }
    .flow-card { flex: 1 1 calc(50% - 14px); }
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
    .tips-grid { grid-template-columns: repeat(2, 1fr); }
    .rank-item img { width: 64px; height: 86px; }
  }

  /* 1024px 断点 */
  @media (min-width: 1024px) {
    .hero h1 { font-size: 44px; }
    .section { padding: 68px 32px; }
    .section-head h2 { font-size: 28px; }
    .update-grid { grid-template-columns: repeat(5, 1fr); }
    .calendar-grid { grid-template-columns: repeat(4, 1fr); }
    .flow-card { flex: 1 1 calc(25% - 14px); }
    .gallery-grid { grid-template-columns: repeat(5, 1fr); }
    .tips-grid { grid-template-columns: repeat(3, 1fr); }
    .cert-box { flex-direction: row; align-items: center; }
    .cert-box > div { flex: 0 0 260px; }
    .poster-track img { width: 160px; height: 224px; }
  }