:root {
    --bg-deep: #0d0a14;
    --bg-panel: #171221;
    --bg-card: #1f182d;
    --brand: #ffd54a;
    --brand-dark: #d4a017;
    --accent: #a86bff;
    --text-main: #f2ecff;
    --text-sub: #a99fc0;
    --line: rgba(168, 107, 255, 0.25);
    --radius: 18px;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg-deep);
    color: var(--text-main);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  img { display: block; max-width: 100%; }
  a { color: inherit; text-decoration: none; }

  /* 顶部导航 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(13, 10, 20, 0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--brand);
  }
  .brand img { height: 32px; width: auto; border-radius: 8px; }
  .nav-links {
    display: flex;
    gap: 22px;
    font-size: 14.5px;
    color: var(--text-sub);
    list-style: none;
  }
  .nav-links a { transition: color 0.25s; }
  .nav-links a:hover { color: var(--brand); }

  /* 首屏 */
  .hero {
    position: relative;
    padding: 70px 20px 60px;
    background:
      radial-gradient(ellipse at 18% 10%, rgba(168, 107, 255, 0.28), transparent 55%),
      radial-gradient(ellipse at 85% 80%, rgba(255, 213, 74, 0.14), transparent 50%);
    overflow: hidden;
  }
  .hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
  }
  .hero-tag {
    display: inline-block;
    font-size: 13px;
    padding: 5px 14px;
    border-radius: 999px;
    background: rgba(255, 213, 74, 0.13);
    color: var(--brand);
    border: 1px solid rgba(255, 213, 74, 0.35);
    margin-bottom: 20px;
  }
  .hero h1 {
    font-size: 44px;
    line-height: 1.28;
    font-weight: 800;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
  }
  .hero h1 em {
    font-style: normal;
    color: var(--brand);
    background: linear-gradient(120deg, var(--brand), #ff9d4a);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .hero-desc {
    color: var(--text-sub);
    font-size: 16px;
    max-width: 480px;
    margin-bottom: 28px;
  }
  .download-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 22px;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 24px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    transition: transform 0.22s, box-shadow 0.22s, background 0.22s;
  }
  .btn-primary {
    background: linear-gradient(120deg, var(--brand), #ffb03a);
    color: #201702;
    box-shadow: 0 8px 24px rgba(255, 180, 60, 0.28);
  }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255, 180, 60, 0.4); }
  .btn-ghost {
    border: 1px solid var(--line);
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.04);
  }
  .btn-ghost:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }
  .btn-ios {
    border: 1px solid rgba(168, 107, 255, 0.5);
    color: #d9c6ff;
    background: rgba(168, 107, 255, 0.1);
  }
  .btn-ios:hover { border-color: var(--accent); color: #fff; transform: translateY(-2px); }
  .hero-note { font-size: 13px; color: var(--text-sub); }

  /* 首屏海报拼贴 */
  .hero-collage {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    transform: rotate(-3deg);
  }
  .hero-collage figure {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
    transition: transform 0.3s;
  }
  .hero-collage figure:nth-child(2) { margin-top: 26px; }
  .hero-collage figure:nth-child(4) { margin-top: -26px; }
  .hero-collage figure:hover { transform: translateY(-6px) scale(1.03); }
  .hero-collage img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 3 / 4; }

  /* 通用区块 */
  section.block { padding: 72px 20px; }
  .container { max-width: 1200px; margin: 0 auto; }
  .section-head { margin-bottom: 36px; }
  .section-head .eyebrow {
    font-size: 13px;
    letter-spacing: 3px;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .section-head h2 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 10px;
  }
  .section-head p { color: var(--text-sub); font-size: 15px; max-width: 660px; }

  /* 分区一：AI短剧正片 */
  .ai-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
  }
  .ai-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.25s, border-color 0.25s;
  }
  .ai-card:hover { transform: translateY(-5px); border-color: rgba(255, 213, 74, 0.55); }
  .ai-card .poster { position: relative; aspect-ratio: 3 / 4; overflow: hidden; }
  .ai-card .poster img { width: 100%; height: 100%; object-fit: cover; }
  .ai-card .poster::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 55%;
    background: linear-gradient(to top, rgba(23, 18, 33, 0.95), transparent);
  }
  .ai-card .score {
    position: absolute;
    top: 10px; right: 10px;
    font-size: 12px;
    padding: 2px 9px;
    border-radius: 999px;
    background: rgba(255, 213, 74, 0.9);
    color: #241a00;
    font-weight: 700;
    z-index: 1;
  }
  .ai-card .info { padding: 14px 16px 18px; }
  .ai-card h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 6px; }
  .ai-card .genre {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
  }
  .ai-card .genre span {
    font-size: 11.5px;
    padding: 1px 9px;
    border-radius: 999px;
    background: rgba(168, 107, 255, 0.16);
    color: #cbb3ff;
    border: 1px solid rgba(168, 107, 255, 0.3);
  }
  .ai-card .meta { font-size: 12.5px; color: var(--text-sub); }
  .ai-card p.synopsis { font-size: 13px; color: var(--text-sub); margin-top: 8px; }

  /* 热播列表 */
  .hot-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .hot-card {
    display: flex;
    gap: 14px;
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 14px;
    transition: border-color 0.25s, transform 0.25s;
  }
  .hot-card:hover { border-color: rgba(255, 213, 74, 0.5); transform: translateY(-3px); }
  .hot-card img {
    width: 92px;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: 9px;
    flex-shrink: 0;
  }
  .hot-card .hot-body { display: flex; flex-direction: column; gap: 5px; }
  .hot-card h3 { font-size: 15.5px; }
  .hot-card .genre { display: flex; flex-wrap: wrap; gap: 5px; }
  .hot-card .genre span {
    font-size: 11px;
    padding: 0 8px;
    border-radius: 999px;
    background: rgba(255, 213, 74, 0.13);
    color: var(--brand);
  }
  .hot-card .meta { font-size: 12px; color: var(--text-sub); }
  .hot-card p { font-size: 12.5px; color: var(--text-sub); }

  /* 安装步骤 */
  .steps-wrap {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: step;
  }
  .step-item {
    position: relative;
    background: linear-gradient(160deg, rgba(168, 107, 255, 0.16), rgba(23, 18, 33, 0.9));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 20px 22px;
  }
  .step-item::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    font-size: 34px;
    font-weight: 800;
    color: rgba(255, 213, 74, 0.28);
    line-height: 1;
    display: block;
    margin-bottom: 12px;
  }
  .step-item h3 { font-size: 16px; margin-bottom: 8px; color: var(--brand); }
  .step-item p { font-size: 13.5px; color: var(--text-sub); }

  /* FAQ */
  .faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .faq-item {
    background: var(--bg-card);
    border-left: 3px solid var(--accent);
    border-radius: 10px;
    padding: 18px 20px;
  }
  .faq-item h3 { font-size: 15.5px; margin-bottom: 6px; color: #e6d6ff; }
  .faq-item p { font-size: 13.5px; color: var(--text-sub); }

  /* 用户热评 */
  .review-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
  .review-item {
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 20px;
  }
  .review-item .who {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
  }
  .review-item .avatar {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--brand));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: #1b1226;
  }
  .review-item .who span { font-size: 13.5px; color: var(--brand); }
  .review-item p { font-size: 13.5px; color: var(--text-sub); }

  /* 隐私安全 */
  .privacy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  .privacy-card {
    background: linear-gradient(150deg, rgba(23, 18, 33, 0.95), rgba(168, 107, 255, 0.12));
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 22px;
  }
  .privacy-card h3 { font-size: 16px; color: var(--brand); margin-bottom: 8px; }
  .privacy-card p { font-size: 13.5px; color: var(--text-sub); }

  /* 创作者计划 */
  .creator-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: start;
  }
  .creator-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
  .creator-list li {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 16px 18px;
    font-size: 14px;
    color: var(--text-sub);
  }
  .creator-list li strong { color: var(--text-main); display: block; margin-bottom: 3px; font-size: 15px; }
  .creator-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .creator-visual img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: 14px;
    border: 1px solid var(--line);
  }

  /* 交流社区 */
  .community-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
  .community-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 20px;
  }
  .community-card h3 { font-size: 15.5px; color: var(--brand); margin-bottom: 6px; }
  .community-card p { font-size: 13.5px; color: var(--text-sub); }

  /* 下载区 */
  .download-block {
    background:
      radial-gradient(ellipse at 20% 20%, rgba(168, 107, 255, 0.28), transparent 55%),
      radial-gradient(ellipse at 85% 75%, rgba(255, 213, 74, 0.16), transparent 50%),
      var(--bg-panel);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .download-inner {
    max-width: 920px;
    margin: 0 auto;
    text-align: center;
  }
  .download-inner h2 { font-size: 30px; margin-bottom: 12px; }
  .download-inner > p { color: var(--text-sub); margin-bottom: 26px; font-size: 15px; }
  .download-inner .download-row { justify-content: center; }
  .install-tips {
    margin-top: 34px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    text-align: left;
  }
  .install-tips div {
    background: rgba(13, 10, 20, 0.6);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 16px;
    font-size: 13px;
    color: var(--text-sub);
  }
  .install-tips strong { color: var(--brand); display: block; margin-bottom: 4px; font-size: 14px; }

  /* 页脚 */
  .site-footer {
    padding: 34px 20px 40px;
    text-align: center;
    font-size: 12.5px;
    color: #6f6683;
  }
  .site-footer p { margin-bottom: 6px; }
  .site-footer a { color: #8a7fa8; }
  .site-footer a:hover { color: var(--brand); }

  /* 响应式 */
  @media (max-width: 1024px) {
    .hero h1 { font-size: 36px; }
    .hero-inner { grid-template-columns: 1fr; gap: 36px; }
    .hero-collage { max-width: 440px; margin: 0 auto; transform: rotate(-2deg); }
    .ai-grid { grid-template-columns: repeat(2, 1fr); }
    .hot-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-wrap { grid-template-columns: repeat(2, 1fr); }
    .review-grid { grid-template-columns: repeat(2, 1fr); }
    .creator-wrap { grid-template-columns: 1fr; }
    .community-grid { grid-template-columns: repeat(2, 1fr); }
    .nav-links { display: none; }
  }
  @media (max-width: 768px) {
    .hero { padding: 48px 16px 44px; }
    .hero h1 { font-size: 28px; }
    .hero-desc { font-size: 14.5px; }
    section.block { padding: 52px 16px; }
    .section-head h2 { font-size: 23px; }
    .ai-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .hot-grid { grid-template-columns: 1fr; }
    .steps-wrap { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .privacy-grid { grid-template-columns: 1fr; }
    .review-grid { grid-template-columns: 1fr; }
    .community-grid { grid-template-columns: 1fr; }
    .creator-visual { grid-template-columns: 1fr 1fr; }
    .install-tips { grid-template-columns: 1fr; }
    .btn { padding: 12px 20px; font-size: 14px; }
    .ai-card h3 { font-size: 15px; }
  }