/* roulang page: index */
:root {
      --bg-dark: #07090e;
      --bg-surface: #0e121a;
      --bg-card: #151a26;
      --bg-card-hover: #1c2333;
      --accent-neon: #7928ca;
      --accent-cyan: #00dfd8;
      --accent-pink: #ff007a;
      --text-main: #f3f4f6;
      --text-muted: #9ca3af;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(0, 223, 216, 0.25);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    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;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover {
      color: var(--accent-cyan);
    }

    /* 悬浮胶囊导航 */
    .capsule-header {
      position: fixed;
      top: 24px;
      left: 0;
      right: 0;
      z-index: 1000;
      display: flex;
      justify-content: center;
      padding: 0 16px;
      pointer-events: none;
    }
    .capsule-nav {
      pointer-events: auto;
      background: rgba(14, 18, 26, 0.75);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      padding: 8px 24px;
      display: flex;
      align-items: center;
      gap: 32px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(121, 40, 202, 0.2);
    }
    .capsule-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: -0.5px;
    }
    .capsule-logo i {
      color: var(--accent-pink);
      text-shadow: 0 0 12px var(--accent-pink);
    }
    .capsule-menu {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
      margin: 0;
    }
    .capsule-menu a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 14px;
      border-radius: var(--radius-full);
    }
    .capsule-menu a.active, .capsule-menu a:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .capsule-btn {
      background: linear-gradient(135deg, var(--accent-pink), var(--accent-neon));
      color: #fff !important;
      font-size: 0.85rem;
      font-weight: 600;
      padding: 8px 18px;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 14px rgba(255, 0, 122, 0.4);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .capsule-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(255, 0, 122, 0.6);
    }

    /* 斜切 Hero */
    .hero-skew-section {
      position: relative;
      min-height: 85vh;
      display: flex;
      align-items: center;
      padding: 160px 0 100px;
      overflow: hidden;
      background: radial-gradient(circle at 80% 20%, rgba(121, 40, 202, 0.18) 0%, transparent 50%),
                  radial-gradient(circle at 20% 80%, rgba(0, 223, 216, 0.12) 0%, transparent 40%);
    }
    .hero-skew-bg {
      position: absolute;
      top: -20%;
      right: -10%;
      width: 65%;
      height: 140%;
      background: linear-gradient(135deg, rgba(121, 40, 202, 0.25) 0%, rgba(255, 0, 122, 0.12) 100%);
      transform: skewX(-14deg);
      border-left: 1px solid rgba(255, 255, 255, 0.1);
      z-index: 1;
      pointer-events: none;
      filter: blur(2px);
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 223, 216, 0.1);
      border: 1px solid rgba(0, 223, 216, 0.3);
      color: var(--accent-cyan);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 0.82rem;
      font-weight: 600;
      margin-bottom: 24px;
      letter-spacing: 0.5px;
    }
    .hero-title {
      font-size: 3.4rem;
      font-weight: 900;
      line-height: 1.15;
      letter-spacing: -1px;
      margin-bottom: 24px;
      color: #fff;
    }
    .hero-title span {
      background: linear-gradient(to right, var(--accent-cyan), var(--accent-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 620px;
      line-height: 1.8;
      margin-bottom: 36px;
    }
    .hero-cta {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      padding: 16px 36px;
      background: linear-gradient(90deg, var(--accent-cyan), var(--accent-neon));
      color: #07090e;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      box-shadow: 0 8px 30px rgba(0, 223, 216, 0.3);
      transition: var(--transition);
    }
    .hero-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 35px rgba(0, 223, 216, 0.5);
      color: #07090e;
    }

    /* 通用板块与排版 */
    section {
      padding: 90px 0;
      position: relative;
    }
    .section-alt {
      background: var(--bg-surface);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-head {
      margin-bottom: 48px;
    }
    .section-tag {
      color: var(--accent-cyan);
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 8px;
      display: inline-block;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1rem;
      max-width: 680px;
    }

    /* 蓝图：横滑片库轨 */
    .stream-rail {
      display: flex;
      gap: 20px;
      overflow-x: auto;
      padding: 10px 4px 24px;
      scrollbar-width: thin;
      scrollbar-color: var(--accent-neon) transparent;
    }
    .stream-rail::-webkit-scrollbar {
      height: 6px;
    }
    .stream-rail::-webkit-scrollbar-thumb {
      background: var(--accent-neon);
      border-radius: 3px;
    }
    .rail-card {
      flex: 0 0 260px;
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .rail-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-glow);
      box-shadow: 0 12px 30px rgba(0, 223, 216, 0.15);
    }
    .rail-thumb {
      height: 150px;
      position: relative;
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: flex-end;
      padding: 12px;
    }
    .rail-tag {
      background: rgba(0, 0, 0, 0.7);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      color: var(--accent-cyan);
    }
    .rail-body {
      padding: 16px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .rail-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
    }
    .rail-info {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 蓝图：热播网格 (非对称) */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 24px;
    }
    .feature-card-lg {
      grid-column: span 7;
      background: linear-gradient(180deg, var(--bg-card) 0%, rgba(21, 26, 38, 0.4) 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }
    .feature-card-sm {
      grid-column: span 5;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .feature-stat-num {
      font-size: 3rem;
      font-weight: 900;
      color: #fff;
      line-height: 1;
      margin-bottom: 8px;
      background: linear-gradient(45deg, #fff, var(--text-muted));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* 蓝图：类型入口矩阵 */
    .genre-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 20px;
    }
    .genre-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      align-items: center;
      gap: 16px;
      transition: var(--transition);
    }
    .genre-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--accent-pink);
      transform: scale(1.02);
    }
    .genre-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(255, 0, 122, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-pink);
      font-size: 1.3rem;
    }

    /* 蓝图：评分排行条 */
    .rank-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .rank-item {
      display: flex;
      align-items: center;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 16px 24px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }
    .rank-item:hover {
      border-color: var(--accent-cyan);
      transform: translateX(6px);
    }
    .rank-index {
      font-size: 1.4rem;
      font-weight: 900;
      width: 40px;
      color: var(--accent-cyan);
    }
    .rank-name {
      flex: 1;
      font-weight: 600;
      color: #fff;
    }
    .rank-score {
      font-weight: 800;
      color: #ffb703;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 蓝图：拼团专区 (E流拓展) */
    .group-panel {
      background: radial-gradient(circle at top right, rgba(255, 0, 122, 0.15) 0%, transparent 60%),
                  var(--bg-card);
      border: 1px solid rgba(255, 0, 122, 0.25);
      border-radius: var(--radius-lg);
      padding: 40px;
    }
    .progress-bar-wrap {
      background: rgba(255, 255, 255, 0.08);
      height: 10px;
      border-radius: var(--radius-full);
      overflow: hidden;
      margin: 16px 0;
    }
    .progress-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--accent-pink), var(--accent-cyan));
      border-radius: var(--radius-full);
    }

    /* 蓝图：资讯卡片 */
    .news-card {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .news-card:hover {
      border-color: var(--accent-neon);
      transform: translateY(-4px);
    }

    /* 平台保障组件 */
    .trust-badge-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .trust-badge-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      text-align: center;
    }
    .trust-badge-card i {
      font-size: 2rem;
      color: var(--accent-cyan);
      margin-bottom: 12px;
    }

    /* 统一页脚 */
    footer {
      background: #040508;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .footer-logo {
      font-size: 1.35rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .footer-logo i {
      color: var(--accent-pink);
    }
    .footer-links {
      list-style: none;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-bottom {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-title { font-size: 2.6rem; }
      .feature-card-lg, .feature-card-sm { grid-column: span 12; }
      .trust-badge-row { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .hero-title { font-size: 2.1rem; }
      .hero-skew-bg { display: none; }
      .hero-skew-section { min-height: auto; padding: 120px 0 60px; }
      .capsule-menu { display: none; }
      .capsule-nav { padding: 6px 16px; }
      .trust-badge-row { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }