/* roulang page: index */
:root {
      --bg-dark: #0B132B;
      --bg-card: #1C2541;
      --bg-card-hover: #233156;
      --brand-blue: #00F2FE;
      --brand-blue-gradient: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
      --accent-green: #10B981;
      --accent-green-light: #06D6A0;
      --accent-gold: #FFB703;
      --text-white: #FFFFFF;
      --text-sub: #E2E8F0;
      --text-muted: #94A3B8;
      --border-color: #334155;
      --border-glow: rgba(0, 242, 254, 0.25);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-base: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
      --shadow-glow: 0 0 20px rgba(0, 242, 254, 0.2);
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      background-color: var(--bg-dark);
      color: var(--text-sub);
      font-family: var(--font-sans);
      font-size: 15px;
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--brand-blue); text-decoration: none; transition: all 0.25s ease; }
    a:hover, a:focus { color: var(--accent-green-light); text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }
    ul, ol { list-style: none; margin: 0; padding: 0; }
    h1, h2, h3, h4, h5, h6 {
      color: var(--text-white);
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 0.75rem;
    }

    /* 顶部通栏导航 */
    .site-header {
      background: linear-gradient(180deg, #0B132B 0%, #1C2541 100%);
      border-bottom: 1px solid var(--border-glow);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 4px 20px rgba(0,0,0,0.6);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-white);
      letter-spacing: 0.5px;
    }
    .brand-logo i {
      color: var(--brand-blue);
      font-size: 1.6rem;
      filter: drop-shadow(0 0 8px rgba(0,242,254,0.6));
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .nav-item {
      color: var(--text-white);
      font-weight: 600;
      font-size: 0.95rem;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      position: relative;
    }
    .nav-item:hover, .nav-item.active {
      color: var(--brand-blue);
      background: rgba(0, 242, 254, 0.08);
    }
    .nav-item.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 12px;
      right: 12px;
      height: 2px;
      background: var(--brand-blue-gradient);
      box-shadow: 0 0 8px var(--brand-blue);
    }
    .nav-cta {
      background: var(--accent-green);
      color: #052e16 !important;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 10px 20px;
      border-radius: 50px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
      transition: transform 0.2s, background-color 0.2s;
    }
    .nav-cta:hover {
      background: var(--accent-green-light);
      transform: translateY(-2px);
    }
    .live-pulse {
      width: 8px;
      height: 8px;
      background-color: #ef4444;
      border-radius: 50%;
      box-shadow: 0 0 0 rgba(239, 68, 68, 0.7);
      animation: pulse-dot 1.5s infinite;
    }
    @keyframes pulse-dot {
      0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
      100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
    }

    /* 统一 Section 样式 */
    .section-wrap {
      padding: 70px 0;
      border-bottom: 1px solid rgba(51, 65, 85, 0.5);
      position: relative;
    }
    .section-alt {
      background: rgba(28, 37, 65, 0.35);
    }
    .section-header {
      margin-bottom: 45px;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--brand-blue);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      padding: 4px 12px;
      background: rgba(0, 242, 254, 0.1);
      border: 1px solid rgba(0, 242, 254, 0.2);
      border-radius: 30px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2rem;
      letter-spacing: -0.5px;
    }
    .section-desc {
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto;
      font-size: 1rem;
    }

    /* 按钮规范 */
    .btn-primary {
      background: var(--brand-blue-gradient);
      color: #07192f !important;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 242, 254, 0.5);
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.08);
      color: var(--text-white) !important;
      border: 1px solid var(--border-color);
      font-weight: 600;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: var(--brand-blue);
    }

    /* 卡片基础系统 */
    .feature-card {
      background: var(--bg-card);
      border: 1px solid rgba(0, 242, 254, 0.15);
      border-radius: var(--radius-md);
      padding: 28px;
      height: 100%;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-base);
      display: flex;
      flex-direction: column;
    }
    .feature-card:hover {
      transform: translateY(-5px);
      border-color: var(--brand-blue);
      box-shadow: var(--shadow-glow);
      background: var(--bg-card-hover);
    }
    .card-icon {
      font-size: 2.2rem;
      color: var(--brand-blue);
      margin-bottom: 20px;
      display: inline-block;
    }

    /* 板块 1: Hero Section */
    .hero-section {
      padding: 60px 0 80px;
      background: radial-gradient(circle at 80% 20%, rgba(0, 242, 254, 0.12) 0%, transparent 60%),
                  radial-gradient(circle at 20% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
                  var(--bg-dark);
      border-bottom: 1px solid var(--border-glow);
    }
    .hero-h1 {
      font-size: 2.5rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #FFFFFF 30%, var(--brand-blue) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-summary {
      font-size: 1.05rem;
      color: var(--text-sub);
      margin-bottom: 30px;
      line-height: 1.8;
    }
    .hero-metrics {
      display: flex;
      gap: 20px;
      margin-top: 30px;
      padding-top: 20px;
      border-top: 1px solid rgba(255,255,255,0.1);
    }
    .metric-box {
      display: flex;
      flex-direction: column;
    }
    .metric-value {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--accent-green-light);
    }
    .metric-label {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .player-window {
      background: #000;
      border: 1px solid var(--brand-blue);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 15px 35px rgba(0,0,0,0.8), 0 0 25px rgba(0,242,254,0.25);
    }
    .player-topbar {
      background: #141b2d;
      padding: 10px 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      border-bottom: 1px solid #233156;
    }
    .player-screen {
      height: 280px;
      background: linear-gradient(180deg, #0d1b2a 0%, #1b263b 100%);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      position: relative;
      padding: 20px;
      text-align: center;
    }
    .score-hud {
      display: flex;
      align-items: center;
      gap: 24px;
      margin-bottom: 20px;
    }
    .team-badge {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
    }
    .team-icon {
      width: 50px;
      height: 50px;
      background: rgba(255,255,255,0.08);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      border: 1px solid rgba(255,255,255,0.2);
    }
    .live-score {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--accent-gold);
      letter-spacing: 4px;
    }
    .player-control {
      background: #0f172a;
      padding: 12px 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-muted);
      font-size: 0.85rem;
    }

    /* 板块 3: 赛程中心看板 */
    .match-row-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      margin-bottom: 15px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: all 0.25s ease;
    }
    .match-row-card:hover {
      border-color: var(--brand-blue);
      background: var(--bg-card-hover);
    }
    .match-time-tag {
      font-size: 0.85rem;
      color: var(--text-muted);
      display: flex;
      flex-direction: column;
      min-width: 110px;
    }
    .match-time-tag strong {
      color: var(--text-white);
      font-size: 1rem;
    }
    .match-teams-area {
      display: flex;
      align-items: center;
      gap: 20px;
      flex: 1;
      justify-content: center;
    }
    .match-team-name {
      font-weight: 700;
      font-size: 1.1rem;
      color: var(--text-white);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .match-vs-pill {
      background: rgba(255,255,255,0.06);
      padding: 4px 12px;
      border-radius: 20px;
      font-weight: 800;
      color: var(--accent-gold);
      font-size: 0.85rem;
    }

    /* 板块 6: 对比表格 */
    .compare-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background: #141b2d;
      color: var(--text-white);
      font-weight: 700;
    }
    .compare-table tr:last-child td { border-bottom: none; }
    .col-highlight {
      background: rgba(0, 242, 254, 0.05);
      color: var(--brand-blue);
      font-weight: 700;
      border-left: 1px solid rgba(0, 242, 254, 0.2);
      border-right: 1px solid rgba(0, 242, 254, 0.2);
    }

    /* 板块 7: 球队网格 */
    .team-badge-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 20px;
      text-align: center;
      transition: all 0.25s ease;
    }
    .team-badge-card:hover {
      border-color: var(--brand-blue);
      transform: translateY(-4px);
    }
    .team-shield {
      width: 60px;
      height: 60px;
      background: rgba(255,255,255,0.05);
      border-radius: 50%;
      margin: 0 auto 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      color: var(--brand-blue);
      border: 1px solid rgba(0,242,254,0.3);
    }

    /* 板块 9: FAQ 折叠面板 */
    .accordion-item-custom {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .accordion-title-custom {
      padding: 18px 24px;
      color: var(--text-white);
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .accordion-title-custom:hover {
      color: var(--brand-blue);
    }
    .accordion-content-custom {
      padding: 0 24px 20px;
      color: var(--text-sub);
      font-size: 0.95rem;
      line-height: 1.8;
      border-top: 1px solid rgba(255,255,255,0.05);
      padding-top: 16px;
    }

    /* 板块 10: SLA 保障条 */
    .sla-strip {
      background: linear-gradient(90deg, #102a45 0%, #163859 50%, #102a45 100%);
      border-top: 1px solid var(--brand-blue);
      border-bottom: 1px solid var(--brand-blue);
      padding: 30px 0;
    }
    .sla-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .sla-icon {
      font-size: 2rem;
      color: var(--accent-green-light);
    }

    /* 板块 11: 强化 CTA 卡片 */
    .conversion-banner {
      background: radial-gradient(circle at center, rgba(0, 242, 254, 0.15) 0%, rgba(28, 37, 65, 0.8) 100%);
      border: 2px solid var(--brand-blue);
      border-radius: var(--radius-lg);
      padding: 50px 30px;
      text-align: center;
      box-shadow: 0 0 30px rgba(0, 242, 254, 0.2);
    }

    /* 板块 12: 积分榜精简版 */
    .data-table-mini {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.9rem;
    }
    .data-table-mini th {
      background: #141b2d;
      color: var(--text-muted);
      padding: 10px 14px;
      text-align: center;
      font-weight: 600;
    }
    .data-table-mini td {
      padding: 12px 14px;
      text-align: center;
      border-bottom: 1px solid rgba(51, 65, 85, 0.5);
    }
    .data-table-mini td:nth-child(2) {
      text-align: left;
      font-weight: 700;
      color: var(--text-white);
    }
    .rank-pill {
      display: inline-block;
      width: 22px;
      height: 22px;
      line-height: 22px;
      border-radius: 50%;
      font-size: 0.75rem;
      font-weight: 700;
      background: rgba(255,255,255,0.1);
    }
    .rank-1 { background: #ef4444; color: #fff; }
    .rank-2, .rank-3, .rank-4 { background: var(--brand-blue); color: #07192f; }

    /* 页脚 */
    .site-footer {
      background: #060a17;
      padding: 60px 0 30px;
      border-top: 1px solid var(--border-color);
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .footer-col-title {
      color: var(--text-white);
      font-weight: 700;
      margin-bottom: 18px;
      font-size: 1.05rem;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--brand-blue);
    }
    .footer-bottom {
      margin-top: 50px;
      padding-top: 25px;
      border-top: 1px solid rgba(255,255,255,0.08);
      text-align: center;
      font-size: 0.85rem;
    }

    /* 底部固定微型控制栏 */
    .sticky-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(11, 19, 43, 0.95);
      backdrop-filter: blur(10px);
      border-top: 1px solid var(--brand-blue);
      padding: 10px 20px;
      z-index: 999;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .sticky-status {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-white);
    }

    @media (max-width: 768px) {
      .hero-h1 { font-size: 1.8rem; }
      .section-title { font-size: 1.5rem; }
      .match-row-card { flex-direction: column; gap: 12px; text-align: center; }
      .match-teams-area { flex-direction: column; gap: 8px; }
      .hero-metrics { flex-direction: column; gap: 10px; }
      .sla-item { margin-bottom: 20px; }
    }