:root {
      --primary-yellow: #FFD700;
      --primary-yellow-hover: #FFC400;
      --bg-black: #0F0F0F;
      --bg-dark: #1A1A1A;
      --bg-card: #242424;
      --text-light: #FFFFFF;
      --text-muted: #A0A0A0;
      --border-color: #333333;
      --radius: 12px;
      --container-max: 1200px;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-black);
      color: var(--text-light);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a { text-decoration: none; color: inherit; }
    ul { list-style: none; }
    img { display: block; max-width: 100%; }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 导航栏 */
    .site-header {
      background-color: rgba(15, 15, 15, 0.9);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 1px solid var(--border-color);
    }

    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: bold;
      color: var(--primary-yellow);
    }

    .brand img {
      height: 32px;
      border-radius: 6px;
    }

    .nav-links {
      display: none;
    }

    .nav-links a {
      color: var(--text-muted);
      margin: 0 16px;
      font-size: 15px;
      transition: color 0.3s;
    }

    .nav-links a:hover {
      color: var(--primary-yellow);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: var(--primary-yellow);
      color: var(--bg-black);
      font-weight: bold;
      border-radius: 50px;
      padding: 10px 24px;
      transition: background-color 0.3s, transform 0.2s;
      cursor: pointer;
    }

    .btn:hover {
      background-color: var(--primary-yellow-hover);
      transform: translateY(-2px);
    }

    .btn-nav {
      font-size: 14px;
      padding: 8px 20px;
    }

    /* 首屏 */
    .hero {
      padding: 60px 0;
      background: linear-gradient(180deg, var(--bg-black) 0%, var(--bg-dark) 100%);
      position: relative;
    }

    .hero-inner {
      display: flex;
      flex-direction: column;
      gap: 40px;
    }

    .hero-content {
      text-align: center;
    }

    .hero h1 {
      font-size: 32px;
      line-height: 1.3;
      margin-bottom: 20px;
      color: var(--text-light);
    }

    .hero h1 span {
      color: var(--primary-yellow);
    }

    .hero-desc {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 32px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
    }

    .btn-large {
      font-size: 18px;
      padding: 16px 40px;
    }

    .hero-visual {
      position: relative;
      display: flex;
      justify-content: center;
    }

    .hero-visual img {
      width: 100%;
      max-width: 400px;
      border-radius: var(--radius);
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
      border: 2px solid var(--border-color);
    }

    /* 数据轮播 */
    .stats {
      background-color: var(--primary-yellow);
      color: var(--bg-black);
      padding: 30px 0;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      text-align: center;
    }

    .stat-item h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .stat-item p {
      font-size: 14px;
      font-weight: 600;
      opacity: 0.8;
    }

    /* 通用区块标题 */
    .section-title {
      text-align: center;
      margin-bottom: 40px;
    }

    .section-title h2 {
      font-size: 28px;
      color: var(--text-light);
      margin-bottom: 12px;
    }

    .section-title p {
      color: var(--text-muted);
      font-size: 15px;
    }

    /* 平台介绍 */
    .intro {
      padding: 80px 0;
      background-color: var(--bg-black);
    }

    .intro-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 40px;
      align-items: center;
    }

    .intro-text h2 {
      font-size: 26px;
      margin-bottom: 20px;
    }

    .intro-text p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 16px;
    }

    .intro-img img {
      width: 100%;
      border-radius: var(--radius);
    }

    /* 平台优势 */
    .features {
      padding: 80px 0;
      background-color: var(--bg-dark);
    }

    .features-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .feature-card {
      background-color: var(--bg-card);
      padding: 32px 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      transition: transform 0.3s, border-color 0.3s;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary-yellow);
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      background-color: rgba(255, 215, 0, 0.1);
      color: var(--primary-yellow);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 18px;
      margin-bottom: 12px;
      color: var(--text-light);
    }

    .feature-card p {
      color: var(--text-muted);
      font-size: 14px;
    }

    /* 今日上新 & 热播榜 */
    .new-releases, .trending {
      padding: 80px 0;
      background-color: var(--bg-black);
    }

    .trending {
      background-color: var(--bg-dark);
    }

    .poster-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .poster-card {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      aspect-ratio: 3/4;
    }

    .poster-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s;
    }

    .poster-card:hover img {
      transform: scale(1.05);
    }

    .poster-tag {
      position: absolute;
      bottom: 12px;
      left: 12px;
      background-color: rgba(0,0,0,0.8);
      color: var(--primary-yellow);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: bold;
    }

    /* 专题板块 */
    .topics {
      padding: 80px 0;
      background-color: var(--bg-black);
    }

    .topic-row {
      display: flex;
      gap: 20px;
      overflow-x: auto;
      padding-bottom: 20px;
      scrollbar-width: none;
    }
    .topic-row::-webkit-scrollbar { display: none; }

    .topic-item {
      flex: 0 0 240px;
      border-radius: var(--radius);
      overflow: hidden;
      position: relative;
      aspect-ratio: 16/9;
    }

    .topic-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .topic-title {
      position: absolute;
      inset: 0;
      background: linear-gradient(0deg, rgba(0,0,0,0.8) 0%, transparent 100%);
      display: flex;
      align-items: flex-end;
      padding: 16px;
      font-size: 16px;
      font-weight: bold;
    }

    /* 用户评价 */
    .reviews {
      padding: 80px 0;
      background-color: var(--bg-dark);
    }

    .review-list {
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
    }

    .review-card {
      background-color: var(--bg-card);
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
    }

    .review-stars {
      color: var(--primary-yellow);
      margin-bottom: 12px;
      font-size: 14px;
    }

    .review-text {
      font-size: 15px;
      color: var(--text-light);
      margin-bottom: 16px;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .user-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background-color: var(--primary-yellow);
      color: var(--bg-black);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    .user-info span {
      display: block;
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 下载板块 */
    .download {
      padding: 80px 0;
      background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-black) 100%);
      text-align: center;
    }

    .download h2 {
      font-size: 32px;
      margin-bottom: 16px;
      color: var(--primary-yellow);
    }

    .download p {
      color: var(--text-muted);
      margin-bottom: 40px;
      font-size: 16px;
    }

    .btn-huge {
      display: inline-flex;
      font-size: 22px;
      padding: 20px 60px;
      border-radius: 50px;
      box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
    }

    /* 常见问答 */
    .faq {
      padding: 80px 0;
      background-color: var(--bg-black);
    }

    .faq-list {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background-color: var(--bg-card);
      border-radius: var(--radius);
      margin-bottom: 16px;
      border: 1px solid var(--border-color);
      overflow: hidden;
    }

    .faq-question {
      padding: 20px;
      font-size: 16px;
      font-weight: bold;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-question:hover {
      color: var(--primary-yellow);
    }

    .faq-answer {
      padding: 0 20px 20px;
      color: var(--text-muted);
      font-size: 14px;
      display: none;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    .faq-item.active .faq-question {
      color: var(--primary-yellow);
    }

    /* 页脚 */
    .site-footer {
      background-color: var(--bg-dark);
      padding: 40px 0 20px;
      border-top: 1px solid var(--border-color);
      text-align: center;
    }

    .footer-content p {
      color: var(--text-muted);
      font-size: 14px;
      margin-bottom: 8px;
    }

    .footer-time {
      font-size: 12px;
      color: #666;
      margin-top: 20px;
    }

    /* 响应式 768px */
    @media (min-width: 768px) {
      .nav-links {
        display: flex;
      }
      .hero h1 {
        font-size: 48px;
      }
      .hero-inner {
        flex-direction: row;
        align-items: center;
        text-align: left;
      }
      .hero-content {
        flex: 1;
        text-align: left;
      }
      .hero-desc {
        margin-left: 0;
      }
      .hero-actions {
        justify-content: flex-start;
      }
      .hero-visual {
        flex: 1;
      }
      .stats-grid {
        grid-template-columns: repeat(4, 1fr);
      }
      .intro-grid {
        grid-template-columns: 1fr 1fr;
      }
      .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .poster-grid {
        grid-template-columns: repeat(4, 1fr);
      }
      .review-list {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    /* 响应式 1024px */
    @media (min-width: 1024px) {
      .features-grid {
        grid-template-columns: repeat(4, 1fr);
      }
      .poster-grid {
        grid-template-columns: repeat(5, 1fr);
      }
      .review-list {
        grid-template-columns: repeat(3, 1fr);
      }
    }