/* roulang page: index */
:root {
      --primary-color: #f04438;
      --primary-hover: #d92d20;
      --secondary-color: #101828;
      --bg-dark: #0c111d;
      --bg-card: #161b26;
      --border-color: #222938;
      --text-main: #f8f9fa;
      --text-muted: #98a2b3;
      --accent-color: #f79009;
      --card-radius: 12px;
    }

    body {
      background-color: var(--bg-dark);
      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;
      transition: all 0.2s ease;
    }

    /* SaaS 命令栏导航 */
    .saas-navbar {
      background: rgba(12, 17, 29, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1030;
      padding: 0.75rem 0;
    }
    .brand-logo {
      font-size: 1.4rem;
      font-weight: 800;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .brand-logo i {
      color: var(--primary-color);
    }
    .command-search {
      background: #1d2939;
      border: 1px solid var(--border-color);
      color: #eaecf0;
      border-radius: 8px;
      padding: 0.4rem 0.8rem;
      font-size: 0.875rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      min-width: 260px;
    }
    .command-search input {
      background: transparent;
      border: none;
      color: #fff;
      outline: none;
      width: 100%;
      font-size: 0.875rem;
    }
    .shortcut-key {
      background: #344054;
      padding: 2px 6px;
      border-radius: 4px;
      font-size: 0.75rem;
      color: #d0d5dd;
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 4.5rem 0 3.5rem;
      background: radial-gradient(circle at 50% 0%, rgba(240, 68, 56, 0.15) 0%, rgba(12, 17, 29, 0) 70%);
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }
    .hero-title {
      font-size: 2.5rem;
      font-weight: 800;
      margin-bottom: 1.25rem;
      background: linear-gradient(180deg, #ffffff 0%, #d0d5dd 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      max-width: 780px;
      margin: 0 auto 2rem;
      color: var(--text-muted);
      font-size: 1.05rem;
    }
    .hero-search-box {
      max-width: 640px;
      margin: 0 auto 1.5rem;
      position: relative;
    }
    .hero-search-box input {
      height: 54px;
      border-radius: 28px;
      padding-left: 1.5rem;
      padding-right: 120px;
      background: #161b26;
      border: 1px solid #344054;
      color: #fff;
    }
    .hero-search-box input:focus {
      background: #161b26;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(240, 68, 56, 0.25);
      color: #fff;
    }
    .hero-search-btn {
      position: absolute;
      right: 6px;
      top: 6px;
      bottom: 6px;
      border-radius: 22px;
      padding: 0 1.5rem;
      background: var(--primary-color);
      border: none;
      color: #fff;
      font-weight: 600;
    }
    .hero-search-btn:hover {
      background: var(--primary-hover);
    }
    .quick-tags {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 0.5rem;
      align-items: center;
    }
    .quick-tag-item {
      font-size: 0.85rem;
      background: rgba(255, 255, 255, 0.05);
      padding: 0.25rem 0.75rem;
      border-radius: 20px;
      color: #d0d5dd;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .quick-tag-item:hover {
      background: var(--primary-color);
      color: #fff;
    }

    /* 通用区块排版 */
    .app-section {
      padding: 4rem 0;
      border-bottom: 1px solid var(--border-color);
    }
    .section-alt {
      background: #0f1523;
    }
    .section-header {
      margin-bottom: 2.5rem;
    }
    .section-title {
      font-size: 1.75rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 0.75rem;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 0.95rem;
      max-width: 680px;
    }

    /* 卡片与组件 */
    .theme-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 1.5rem;
      height: 100%;
      transition: transform 0.2s ease, border-color 0.2s ease;
    }
    .theme-card:hover {
      transform: translateY(-4px);
      border-color: #3e4758;
    }
    .theme-badge {
      display: inline-block;
      padding: 0.25rem 0.6rem;
      font-size: 0.75rem;
      border-radius: 4px;
      background: rgba(240, 68, 56, 0.12);
      color: var(--primary-color);
      font-weight: 600;
      margin-bottom: 0.75rem;
    }

    /* 成果墙数据统计 */
    .stat-number {
      font-size: 2.25rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 0.25rem;
      background: linear-gradient(180deg, #fff 0%, #98a2b3 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* 热播/热度轨道横滑 */
    .track-scroller {
      display: flex;
      gap: 1.25rem;
      overflow-x: auto;
      padding-bottom: 1rem;
      scrollbar-width: thin;
      scrollbar-color: #344054 transparent;
    }
    .track-scroller::-webkit-scrollbar {
      height: 6px;
    }
    .track-scroller::-webkit-scrollbar-thumb {
      background: #344054;
      border-radius: 3px;
    }
    .track-item {
      flex: 0 0 260px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 1.2rem;
    }

    /* 排行榜表格 */
    .rank-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0 0.5rem;
    }
    .rank-table tr {
      background: var(--bg-card);
      transition: background 0.2s;
    }
    .rank-table tr:hover {
      background: #1e2638;
    }
    .rank-table td {
      padding: 1rem;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .rank-table td:first-child {
      border-left: 1px solid var(--border-color);
      border-top-left-radius: 8px;
      border-bottom-left-radius: 8px;
      font-weight: 700;
      width: 50px;
      text-align: center;
    }
    .rank-table td:last-child {
      border-right: 1px solid var(--border-color);
      border-top-right-radius: 8px;
      border-bottom-right-radius: 8px;
      text-align: right;
    }

    /* 页脚 */
    .site-footer {
      background: #080b12;
      border-top: 1px solid var(--border-color);
      padding: 3rem 0 2rem;
      font-size: 0.9rem;
      color: #667085;
    }