:root {
    --bg: #FCFAF7;
    --bg-alt: #F3EEE8;
    --ink: #211C19;
    --ink-2: #736B63;
    --brand: #D13D2B;
    --brand-soft: #F5DCD7;
    --line: #E4DDD4;
    --max-width: 1180px;
    --gap-section: 104px;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--ink);
    line-height: 1.85;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
  }
  a { text-decoration: none; color: inherit; }
  ul { list-style: none; }
  img { max-width: 100%; display: block; object-fit: cover; }
  
  .container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
  }

  /* 01 适龄提示条 */
  .age-banner {
    background-color: var(--ink);
    color: rgba(255, 255, 255, 0.8);
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    text-align: center;
  }

  /* 02 导航 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(252, 250, 247, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
  }
  .brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.02em;
  }
  .brand-logo img { height: 32px; width: auto; }
  .nav-links {
    display: flex;
    gap: 32px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink-2);
  }
  .nav-links a:hover { color: var(--ink); }
  .btn-primary {
    background-color: var(--brand);
    color: #fff;
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.3s;
  }
  .btn-primary:hover { background-color: #b52e1e; }
  .menu-toggle { display: none; }
  
  /* 板块通用排版 */
  section { padding: var(--gap-section) 0; }
  .sec-header { margin-bottom: 40px; text-align: left; }
  .kicker {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--ink-2);
    font-weight: 600;
    display: block;
  }
  .sec-title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    margin-top: 12px;
    letter-spacing: -0.01em;
  }
  .sec-desc {
    font-size: 16px;
    font-weight: 500;
    color: var(--ink-2);
    max-width: 620px;
    margin-top: 10px;
  }

  /* 03 首屏 */
  #hero { padding-top: 72px; padding-bottom: 72px; }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .hero-text .eyebrow {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--brand);
    font-weight: 700;
    margin-bottom: 16px;
  }
  .hero-text h1 {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 20px;
  }
  .hero-text .claim {
    font-size: 20px;
    font-weight: 500;
    color: var(--ink-2);
    font-style: italic;
    margin-bottom: 16px;
  }
  .hero-text .desc {
    font-size: 15px;
    color: var(--ink-2);
    margin-bottom: 32px;
  }
  .hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
  }
  .btn-outline {
    border: 1px solid var(--line);
    color: var(--ink);
    padding: 10px 24px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    background: transparent;
  }
  .hero-pills {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 32px;
  }
  .pill {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    color: var(--ink);
  }
  .scenario-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .scenario-row {
    font-size: 15px;
    color: var(--ink-2);
  }
  .scenario-row strong {
    color: var(--ink);
    margin-right: 8px;
  }

  /* 拼贴结构 */
  .collage {
    position: relative;
    aspect-ratio: 4/5;
    width: 100%;
  }
  .collage img {
    position: absolute;
    border-radius: 16px;
    border: 1px solid #fff;
    box-shadow: 0 18px 40px rgba(0,0,0,.16);
  }
  .collage .main {
    width: 62%;
    aspect-ratio: 3/4;
    left: 19%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
  }
  .collage .sub-a {
    width: 34%;
    aspect-ratio: 3/4;
    top: -6%;
    left: 0;
    z-index: 1;
    transform: rotate(-4deg);
  }
  .collage .sub-b {
    width: 34%;
    aspect-ratio: 3/4;
    bottom: -6%;
    right: 0;
    z-index: 3;
    transform: rotate(4deg);
  }
  .hero-footnote {
    font-size: 13px;
    color: var(--ink-2);
    margin-top: 40px;
    text-align: center;
  }

  /* 04 三入口 */
  .entry-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .entry-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s;
  }
  .entry-card:hover { border-color: var(--brand); }
  .entry-card svg { margin-bottom: 16px; color: var(--brand); }
  .entry-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
  .entry-card p { font-size: 14px; color: var(--ink-2); margin-bottom: 24px; flex-grow: 1; }
  .link-arrow { font-size: 14px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; transition: transform 0.2s; }
  .entry-card:hover .link-arrow { transform: translateX(4px); }

  /* 05 为什么选我们 */
  .why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .why-card {
    background: var(--bg-alt);
    border-radius: 18px;
    padding: 28px;
  }
  .why-card svg { margin-bottom: 16px; color: var(--ink); }
  .why-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
  .why-card p { font-size: 14px; color: var(--ink-2); margin-bottom: 12px; }
  .why-card .meta { font-size: 13px; color: var(--ink-2); }

  /* 06 热播 */
  .hot-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 24px;
  }
  .drama-card { display: block; }
  .drama-cover {
    position: relative;
    aspect-ratio: 3/4;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 16px;
  }
  .drama-cover img { width: 100%; height: 100%; object-fit: cover; }
  .badge-status {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(0,0,0,0.5);
    color: #fff;
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 4px;
    backdrop-filter: blur(4px);
  }
  .drama-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
  .drama-card .genre { font-size: 13px; color: var(--ink-2); margin-bottom: 8px; }
  .tag-outline {
    display: inline-block;
    border: 1px solid var(--line);
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    color: var(--ink-2);
  }
  .sec-footer { text-align: right; }
  .text-link { font-size: 14px; font-weight: 600; color: var(--ink); display: inline-flex; align-items: center; gap: 4px; }
  .text-link:hover { color: var(--brand); }

  /* 07 排行榜 */
  .rank-list { border-top: 1px solid var(--line); }
  .rank-item {
    display: flex;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
    min-height: 88px;
    gap: 20px;
  }
  .rank-num {
    font-size: 24px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    width: 32px;
    color: var(--ink-2);
  }
  .rank-num.top { color: var(--brand); }
  .rank-cover {
    width: 56px;
    height: 75px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
  }
  .rank-cover img { width: 100%; height: 100%; object-fit: cover; }
  .rank-info { flex-grow: 1; }
  .rank-info h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
  .rank-info p { font-size: 13px; color: var(--ink-2); }
  .rank-tags { display: flex; gap: 8px; }

  /* 08 精选片单 */
  .playlist-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .playlist-card { display: block; }
  .playlist-cover {
    aspect-ratio: 3/4;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 16px;
  }
  .playlist-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
  .playlist-card:hover .playlist-cover img { transform: scale(1.04); }
  .playlist-theme { font-size: 12px; text-transform: uppercase; color: var(--brand); font-weight: 600; margin-bottom: 8px; }
  .playlist-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
  .playlist-card p { font-size: 14px; color: var(--ink-2); margin-bottom: 8px; }
  .playlist-suit { font-size: 13px; color: var(--ink-2); }

  /* 09 制作流程 */
  .process-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }
  .process-left p { font-size: 15px; color: var(--ink-2); margin-bottom: 24px; }
  .process-steps { display: flex; flex-direction: column; gap: 24px; }
  .step-item { display: flex; gap: 16px; align-items: flex-start; }
  .step-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--brand-soft);
    -webkit-text-stroke: 1px var(--brand);
    line-height: 1;
    font-family: monospace;
  }
  .step-text h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
  .step-text p { font-size: 14px; color: var(--ink-2); }

  /* 10 创作者 / 合作 */
  .create-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .create-left h2 { margin-bottom: 16px; }
  .create-left p { font-size: 15px; color: var(--ink-2); margin-bottom: 16px; }
  .create-actions { display: flex; gap: 16px; margin-top: 24px; }
  .create-right {
    background: var(--bg-alt);
    border-radius: 18px;
    padding: 28px;
  }
  .check-list { display: flex; flex-direction: column; gap: 16px; }
  .check-item { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; }
  .check-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--brand);
    margin-top: 3px;
  }

  /* 11 下载 */
  #download { background-color: var(--bg-alt); padding: 80px 0; }
  .download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .download-left h2 { margin-bottom: 16px; }
  .download-left .check-list { margin-bottom: 32px; }
  .download-left .age-hint { font-size: 13px; color: var(--ink-2); margin-top: 16px; }
  .qr-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 24px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    max-width: 280px;
  }
  .qr-placeholder {
    width: 160px;
    height: 160px;
    background-color: var(--bg);
    border: 1px dashed var(--line);
    border-radius: 8px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ink-2);
    font-size: 13px;
  }
  .qr-card p { font-size: 13px; color: var(--ink-2); text-align: center; }

  /* 12 FAQ */
  .faq-list { border-top: 1px solid var(--line); }
  .faq-item { border-bottom: 1px solid var(--line); }
  .faq-item details { padding: 20px 0; }
  .faq-item summary {
    display: flex;
    align-items: center;
    cursor: pointer;
    list-style: none;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-num { font-size: 13px; color: var(--ink-2); width: 40px; flex-shrink: 0; font-variant-numeric: tabular-nums; }
  .faq-q { font-size: 17px; font-weight: 600; flex-grow: 1; }
  .faq-icon { font-size: 24px; color: var(--ink-2); transition: transform 0.2s; font-weight: 300; line-height: 1; }
  .faq-item[open] .faq-icon { transform: rotate(45deg); }
  .faq-a {
    padding-top: 16px;
    padding-left: 40px;
    font-size: 15px;
    color: var(--ink-2);
  }

  /* 13 页脚 */
  .site-footer {
    background-color: var(--bg);
    border-top: 1px solid var(--line);
    padding: 64px 0 100px;
    font-size: 14px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
  }
  .footer-brand .brand-logo { margin-bottom: 16px; font-size: 20px; }
  .footer-brand p { color: var(--ink-2); margin-bottom: 8px; }
  .footer-brand .age-hint { font-size: 13px; margin-top: 16px; }
  .footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 16px; }
  .footer-col ul { display: flex; flex-direction: column; gap: 12px; }
  .footer-col a { color: var(--ink-2); }
  .footer-col a:hover { color: var(--ink); }
  .footer-bottom {
    border-top: 1px solid var(--line);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--ink-2);
    font-size: 13px;
    flex-wrap: wrap;
    gap: 16px;
  }
  .footer-update time { color: var(--ink-2); }

  /* 吸底条 */
  .sticky-bottom-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px 24px calc(12px + env(safe-area-inset-bottom));
    background: rgba(252, 250, 247, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--line);
    z-index: 90;
    transition: transform 0.3s, opacity 0.3s;
  }
  .sticky-bottom-bar .btn-primary { display: block; text-align: center; width: 100%; font-size: 16px; padding: 12px; }

  /* 响应式 768px */
  @media (max-width: 768px) {
    :root { --gap-section: 56px; }
    .nav-links { display: none; }
    .menu-toggle { display: block; border: none; background: none; font-size: 24px; color: var(--ink); }
    .hero-grid { grid-template-columns: 1fr; gap: 48px; }
    .collage { aspect-ratio: 3/4; max-width: 400px; margin: 0 auto; }
    .collage .main { width: 100%; left: 0; top: 50%; transform: translateY(-50%); }
    .collage .sub-a, .collage .sub-b { display: none; }
    .hero-pills { grid-template-columns: 1fr; }
    .entry-grid { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr; }
    .hot-grid { grid-template-columns: repeat(2, 1fr); }
    .playlist-grid {
      display: flex;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      gap: 16px;
      padding-bottom: 16px;
      margin-right: -24px;
      padding-right: 24px;
    }
    .playlist-card { scroll-snap-align: start; width: 62vw; flex-shrink: 0; }
    .process-grid { grid-template-columns: 1fr; gap: 40px; }
    .create-grid { grid-template-columns: 1fr; gap: 32px; }
    .download-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .sticky-bottom-bar { display: block; }
    .rank-item { flex-wrap: wrap; gap: 12px; }
    .rank-info { min-width: 100px; }
    .process-steps .step-item { flex-direction: column; gap: 8px; }
    .step-num { font-size: 24px; }
    .hero-text h1 { margin-top: 8px; }
  }