:root {
    --bg-base: #0d0f14;
    --bg-card: #171a23;
    --bg-card-hover: #1f232e;
    --text-main: #f2f3f5;
    --text-sub: #a8b0c0;
    --accent: #ffb800;
    --accent-glow: rgba(255, 184, 0, 0.35);
    --border: rgba(255, 255, 255, 0.08);
    --radius: 16px;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
  }
  a { text-decoration: none; color: inherit; }
  ul { list-style: none; }
  img { display: block; max-width: 100%; }

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

  /* 头部导航 */
  .site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    background: rgba(13, 15, 20, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    display: flex;
    align-items: center;
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }
  .logo-group {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .logo-group img { height: 32px; width: auto; border-radius: 6px; }
  .logo-group span { font-size: 18px; font-weight: 700; letter-spacing: 0.5px; }
  .nav-links { display: none; }
  .header-cta {
    display: none;
    background: linear-gradient(135deg, #ffb800, #ff8a00);
    color: #111;
    font-weight: 700;
    font-size: 14px;
    padding: 8px 20px;
    border-radius: 20px;
    box-shadow: 0 4px 12px var(--accent-glow);
  }

  /* 首屏 */
  .hero-section {
    padding: 100px 0 60px;
    background: radial-gradient(circle at top right, rgba(255, 184, 0, 0.08) 0%, transparent 50%),
                radial-gradient(circle at bottom left, rgba(138, 43, 226, 0.08) 0%, transparent 50%);
    position: relative;
    overflow: hidden;
  }
  .hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
  }
  .hero-badge {
    display: inline-block;
    background: rgba(255, 184, 0, 0.15);
    color: var(--accent);
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 12px;
    margin-bottom: 16px;
    border: 1px solid rgba(255, 184, 0, 0.3);
  }
  .hero-content h1 {
    font-size: 32px;
    line-height: 1.3;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 30%, #ffb800 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .hero-content p {
    font-size: 15px;
    color: var(--text-sub);
    margin-bottom: 32px;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }
  .btn-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 700;
    color: #111;
    background: linear-gradient(135deg, #ffb800, #ff8a00);
    box-shadow: 0 6px 20px var(--accent-glow);
    transition: transform 0.2s, box-shadow 0.2s;
  }
  .btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 184, 0, 0.5);
  }
  .btn-download.dark {
    background: #2a2f3a;
    color: #fff;
    box-shadow: none;
    border: 1px solid var(--border);
  }
  .btn-download.dark:hover { background: #333a48; }

  /* 内容区块通用 */
  .section-title {
    text-align: center;
    margin-bottom: 40px;
  }
  .section-title h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
  }
  .section-title p {
    font-size: 14px;
    color: var(--text-sub);
  }

  /* 短剧展示区 */
  .drama-section { padding: 60px 0; }
  .grid-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .drama-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.3s, border-color 0.3s;
  }
  .drama-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 184, 0, 0.4);
  }
  .drama-img-wrap {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
  }
  .drama-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
  }
  .drama-card:hover .drama-img-wrap img { transform: scale(1.05); }
  .drama-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    color: var(--accent);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
  }
  .drama-info { padding: 12px; }
  .drama-info h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .drama-desc {
    font-size: 12px;
    color: var(--text-sub);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .drama-meta {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: #6b7280;
  }

  /* 安装步骤 */
  .step-section { padding: 60px 0; background: var(--bg-card); border-radius: 24px; margin: 0 20px; }
  .steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
  }
  .step-item {
    display: flex;
    gap: 16px;
    background: var(--bg-base);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
  }
  .step-num {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--accent);
    color: #111;
    font-weight: 800;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
  }
  .step-content h3 { font-size: 16px; margin-bottom: 6px; color: #fff; }
  .step-content p { font-size: 13px; color: var(--text-sub); }

  /* 常见问题 */
  .faq-section { padding: 60px 0; }
  .faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
  }
  .faq-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--border);
  }
  .faq-item h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .faq-item p { font-size: 14px; color: var(--text-sub); }

  /* 用户热评 */
  .review-section { padding: 60px 0; background: linear-gradient(180deg, transparent, rgba(255, 184, 0, 0.03), transparent); }
  .review-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
  }
  .review-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--border);
    position: relative;
  }
  .review-card::before {
    content: '“';
    position: absolute;
    top: 10px; right: 20px;
    font-size: 60px;
    color: rgba(255, 184, 0, 0.1);
    line-height: 1;
    font-family: serif;
  }
  .review-user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
  }
  .review-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffb800, #ff5e00);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
  }
  .review-name { font-size: 14px; font-weight: 600; }
  .review-text { font-size: 13px; color: var(--text-sub); line-height: 1.7; }

  /* 隐私安全 */
  .privacy-section { padding: 60px 0; }
  .privacy-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
  }
  .privacy-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    border-left: 3px solid var(--accent);
  }
  .privacy-item h3 { font-size: 15px; margin-bottom: 8px; color: #fff; }
  .privacy-item p { font-size: 13px; color: var(--text-sub); }

  /* 创作者计划 */
  .creator-section { padding: 60px 0; background: var(--bg-card); border-radius: 24px; margin: 0 20px; }
  .creator-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
  }
  .creator-card {
    background: var(--bg-base);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--border);
  }
  .creator-card h3 { font-size: 16px; margin-bottom: 8px; color: var(--accent); }
  .creator-card p { font-size: 13px; color: var(--text-sub); line-height: 1.7; }

  /* 交流社区 */
  .community-section { padding: 60px 0; }
  .community-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
  }
  .community-card {
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
  }
  .community-card h3 { font-size: 16px; margin-bottom: 8px; }
  .community-card p { font-size: 13px; color: var(--text-sub); }

  /* 底部下载 */
  .bottom-download {
    padding: 60px 20px;
    text-align: center;
    background: radial-gradient(circle at center, rgba(255, 184, 0, 0.1) 0%, transparent 70%);
    border-top: 1px solid var(--border);
  }
  .bottom-download h2 { font-size: 24px; margin-bottom: 12px; }
  .bottom-download p { font-size: 14px; color: var(--text-sub); margin-bottom: 24px; max-width: 600px; margin-left: auto; margin-right: auto; }
  .bottom-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
  }
  .install-tips {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
  }
  .install-tips h3 { font-size: 16px; margin-bottom: 12px; color: var(--accent); }
  .install-tips ul { padding-left: 18px; }
  .install-tips li { font-size: 13px; color: var(--text-sub); margin-bottom: 8px; list-style: disc; }

  /* 页脚 */
  .site-footer {
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: #5a6270;
  }
  .site-footer p { margin-bottom: 8px; }
  .site-footer a { color: #5a6270; transition: color 0.2s; }
  .site-footer a:hover { color: var(--text-sub); }
  .footer-time { font-size: 11px; margin-top: 12px; opacity: 0.7; }

  /* 响应式 - 768px */
  @media (min-width: 768px) {
    .hero-content h1 { font-size: 40px; }
    .grid-gallery { grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .faq-grid { grid-template-columns: repeat(2, 1fr); }
    .review-grid { grid-template-columns: repeat(2, 1fr); }
    .privacy-grid { grid-template-columns: repeat(2, 1fr); }
    .creator-grid { grid-template-columns: repeat(2, 1fr); }
    .community-content { grid-template-columns: repeat(2, 1fr); }
  }

  /* 响应式 - 1024px */
  @media (min-width: 1024px) {
    .hero-section { padding: 140px 0 80px; }
    .hero-content h1 { font-size: 52px; }
    .hero-content p { font-size: 18px; }
    .nav-links {
      display: flex;
      gap: 28px;
      font-size: 14px;
      color: var(--text-sub);
    }
    .nav-links a { transition: color 0.2s; }
    .nav-links a:hover { color: var(--accent); }
    .header-cta { display: block; }
    .grid-gallery { grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .steps-grid { grid-template-columns: repeat(4, 1fr); }
    .section-title h2 { font-size: 32px; }
  }