/* 基础重置与变量 */
    :root {
      --bg-color: #0f0f13;
      --bg-surface: #1a1a24;
      --bg-card: #222230;
      --text-primary: #f0f0f5;
      --text-secondary: #a0a0b0;
      --accent-primary: #8b5cf6; /* 紫色神秘感，契合万圣节 */
      --accent-secondary: #f59e0b; /* 橙色，万圣节南瓜色 */
      --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
      --radius: 12px;
      --radius-lg: 20px;
    }

    * {
      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-color);
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    img {
      max-width: 100%;
      display: block;
    }

    /* 布局容器 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 头部 */
    header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(15, 15, 19, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }

    .logo-group {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-group img {
      height: 32px;
      width: auto;
      border-radius: 8px;
    }

    .logo-group span {
      font-size: 18px;
      font-weight: 700;
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .nav-links {
      display: none;
      gap: 24px;
    }

    .nav-links a {
      font-size: 14px;
      color: var(--text-secondary);
      transition: color 0.2s;
    }

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

    .header-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 20px;
      background: var(--accent-gradient);
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      border-radius: 40px;
      transition: opacity 0.2s;
    }

    .header-cta:hover {
      opacity: 0.9;
    }

    /* 首屏 Hero */
    #hero {
      padding: 60px 0 40px;
      position: relative;
      overflow: hidden;
    }

    #hero::before {
      content: '';
      position: absolute;
      top: -20%;
      left: 50%;
      transform: translateX(-50%);
      width: 100%;
      max-width: 800px;
      height: 500px;
      background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
      pointer-events: none;
      z-index: -1;
    }

    .hero-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 24px;
    }

    .hero-tagline {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(245, 158, 11, 0.15);
      color: var(--accent-secondary);
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
    }

    .hero-content h1 {
      font-size: 32px;
      line-height: 1.3;
      font-weight: 800;
      max-width: 800px;
    }

    .hero-content p {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 600px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      justify-content: center;
      margin-top: 12px;
    }

    .btn-download {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: 50px;
      font-weight: 600;
      font-size: 16px;
      transition: transform 0.2s, opacity 0.2s;
    }

    .btn-download:hover {
      transform: translateY(-2px);
      opacity: 0.9;
    }

    .btn-android {
      background: var(--accent-gradient);
      color: #fff;
      box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
    }

    .btn-ios {
      background: rgba(255, 255, 255, 0.1);
      color: var(--text-primary);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .btn-ios:hover {
      background: rgba(255, 255, 255, 0.15);
    }

    .hero-screens {
      display: flex;
      gap: 16px;
      margin-top: 40px;
      overflow-x: auto;
      padding-bottom: 20px;
      scrollbar-width: none;
    }
    .hero-screens::-webkit-scrollbar { display: none; }

    .hero-screens img {
      height: 280px;
      width: auto;
      border-radius: var(--radius);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
      object-fit: cover;
      flex-shrink: 0;
      transition: transform 0.3s;
    }

    .hero-screens img:hover {
      transform: translateY(-8px);
    }

    /* 通用区块 */
    section {
      padding: 60px 0;
    }

    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-header h2 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .section-header p {
      color: var(--text-secondary);
      font-size: 15px;
      max-width: 600px;
      margin: 0 auto;
    }

    /* AI 短剧合集 */
    #ai-dramas {
      background: var(--bg-surface);
    }

    .grid-cards {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
      gap: 20px;
    }

    .drama-card {
      background: var(--bg-card);
      border-radius: var(--radius);
      overflow: hidden;
      transition: transform 0.2s;
    }

    .drama-card:hover {
      transform: translateY(-4px);
    }

    .drama-card img {
      width: 100%;
      aspect-ratio: 3 / 4;
      object-fit: cover;
      background: #111;
    }

    .card-info {
      padding: 12px;
    }

    .card-info h3 {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 6px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 12px;
      color: var(--text-secondary);
      margin-bottom: 8px;
    }

    .tag {
      display: inline-block;
      padding: 2px 8px;
      background: rgba(139, 92, 246, 0.2);
      color: #c4b5fd;
      border-radius: 4px;
      font-size: 11px;
    }

    .card-desc {
      font-size: 12px;
      color: var(--text-secondary);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    /* 短剧热播 */
    #hot-dramas {
      background: var(--bg-color);
    }

    .hot-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .hot-item {
      display: flex;
      gap: 16px;
      background: var(--bg-surface);
      padding: 16px;
      border-radius: var(--radius);
      border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .hot-item img {
      width: 80px;
      height: 110px;
      object-fit: cover;
      border-radius: 8px;
      flex-shrink: 0;
    }

    .hot-content {
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .hot-content h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .hot-content p {
      font-size: 13px;
      color: var(--text-secondary);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 8px;
    }

    .hot-meta {
      display: flex;
      gap: 12px;
      font-size: 12px;
      color: var(--text-secondary);
    }

    /* 安装步骤 */
    #install-steps {
      background: var(--bg-surface);
    }

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

    .step-card {
      background: var(--bg-card);
      padding: 24px;
      border-radius: var(--radius);
      position: relative;
      border-left: 4px solid var(--accent-primary);
    }

    .step-number {
      position: absolute;
      top: -12px;
      left: 24px;
      background: var(--accent-primary);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
    }

    .step-card h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 8px;
      margin-top: 8px;
    }

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

    /* 常见问题 (FAQ) */
    #faq {
      background: var(--bg-color);
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-surface);
      border-radius: var(--radius);
      padding: 20px;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .faq-item h3 {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--accent-secondary);
    }

    .faq-item p {
      font-size: 14px;
      color: var(--text-secondary);
    }

    /* 用户热评 */
    #reviews {
      background: var(--bg-surface);
    }

    .reviews-columns {
      column-count: 1;
      column-gap: 20px;
    }

    .review-card {
      background: var(--bg-card);
      padding: 20px;
      border-radius: var(--radius);
      margin-bottom: 20px;
      break-inside: avoid;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }

    .avatar {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--accent-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      color: #fff;
    }

    .user-name {
      font-size: 14px;
      font-weight: 600;
    }

    .review-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* 隐私安全 */
    #privacy {
      background: var(--bg-color);
    }

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

    .privacy-card {
      background: var(--bg-surface);
      padding: 24px;
      border-radius: var(--radius);
      text-align: center;
    }

    .privacy-icon {
      font-size: 28px;
      margin-bottom: 12px;
    }

    .privacy-card h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 8px;
    }

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

    /* 创作者计划 & 交流社区 */
    #creator-community {
      background: var(--bg-surface);
    }

    .split-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: 32px;
    }

    .creator-box, .community-box {
      background: var(--bg-card);
      padding: 32px;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .creator-box h3, .community-box h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 16px;
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .creator-box p, .community-box p {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 20px;
    }

    .creator-list, .community-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .creator-list li, .community-list li {
      font-size: 14px;
      color: var(--text-primary);
      display: flex;
      align-items: flex-start;
      gap: 8px;
    }

    .creator-list li::before, .community-list li::before {
      content: '•';
      color: var(--accent-secondary);
      font-weight: bold;
    }

    /* 底部下载区域 */
    #download-footer {
      background: var(--bg-color);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .download-card {
      background: var(--accent-gradient);
      border-radius: var(--radius-lg);
      padding: 48px 24px;
      text-align: center;
      color: #fff;
    }

    .download-card h2 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .download-card p {
      font-size: 15px;
      opacity: 0.9;
      margin-bottom: 32px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .footer-actions .btn-download {
      background: #fff;
      color: var(--bg-color);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    }

    .footer-actions .btn-download:hover {
      background: #f0f0f0;
    }

    /* 页脚 */
    footer {
      padding: 32px 0;
      text-align: center;
      font-size: 12px;
      color: var(--text-secondary);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    footer p {
      margin-bottom: 8px;
    }

    footer a {
      color: var(--text-secondary);
      text-decoration: underline;
    }

    footer a:hover {
      color: var(--text-primary);
    }

    /* 响应式 - 平板 */
    @media (min-width: 768px) {
      .nav-links { display: flex; }
      .hero-content h1 { font-size: 42px; }
      .grid-cards { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
      .steps-grid { grid-template-columns: repeat(2, 1fr); }
      .privacy-grid { grid-template-columns: repeat(2, 1fr); }
      .reviews-columns { column-count: 2; }
      .split-layout { grid-template-columns: 1fr 1fr; }
      .hot-item img { width: 100px; height: 140px; }
    }

    /* 响应式 - 桌面 */
    @media (min-width: 1024px) {
      .hero-content h1 { font-size: 52px; }
      .hero-screens img { height: 360px; }
      .grid-cards { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
      .steps-grid { grid-template-columns: repeat(4, 1fr); }
      .privacy-grid { grid-template-columns: repeat(4, 1fr); }
      .reviews-columns { column-count: 3; }
    }