/* roulang page: index */
:root {
      --primary: #00E5FF;
      --secondary: #FF006E;
      --bg-deep: #0A0E17;
      --bg-card: #0F1520;
      --text-primary: #FFFFFF;
      --text-body: #B0C4DE;
      --text-muted: #7B8CA3;
      --border-subtle: rgba(255, 255, 255, 0.06);
      --border-active: rgba(0, 229, 255, 0.3);
      --gradient-overlay: radial-gradient(circle at 80% 20%, rgba(0, 229, 255, 0.08) 0%, transparent 50%);
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
      --shadow-button: 0 0 24px rgba(0, 229, 255, 0.6);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --transition: all 0.25s ease;
      --font-mono: 'SF Mono', 'Consolas', 'Courier New', monospace;
      --container: 1280px;
    }

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

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      background-color: var(--bg-deep);
      color: var(--text-body);
      line-height: 1.7;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
      scroll-behavior: smooth;
    }

    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 24px;
    }

    a {
      text-decoration: none;
      color: var(--primary);
      transition: var(--transition);
    }

    a:hover {
      color: var(--secondary);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-md);
    }

    button, .btn {
      cursor: pointer;
      font-family: inherit;
      font-weight: 600;
      border: none;
      outline: none;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    h1, h2, h3 {
      color: var(--text-primary);
      font-weight: 700;
      line-height: 1.3;
    }

    h1 {
      font-size: 48px;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    h2 {
      font-size: 36px;
      margin-bottom: 16px;
      position: relative;
    }

    h3 {
      font-size: 20px;
      margin-bottom: 10px;
    }

    /* 导航 */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(10, 14, 23, 0.85);
      backdrop-filter: blur(24px);
      border-bottom: 1px solid rgba(0, 229, 255, 0.15);
      transition: background 0.3s;
    }

    .header.scrolled {
      background: rgba(10, 14, 23, 0.96);
    }

    .nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .logo {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: 1px;
    }

    .logo i {
      color: var(--primary);
      font-size: 28px;
      filter: drop-shadow(0 0 8px rgba(0,229,255,0.5));
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-links a {
      color: var(--text-body);
      font-weight: 500;
      font-size: 15px;
      position: relative;
    }

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

    .nav-cta {
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
      padding: 10px 24px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 14px;
      background: rgba(0,229,255,0.05);
    }

    .nav-cta:hover {
      background: var(--primary);
      color: var(--bg-deep);
      box-shadow: var(--shadow-button);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-primary);
      font-size: 24px;
    }

    /* 移动端底部导航 */
    .mobile-bottom-nav {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(10, 14, 23, 0.95);
      backdrop-filter: blur(20px);
      border-top: 1px solid rgba(0,229,255,0.2);
      z-index: 999;
      justify-content: space-around;
      padding: 8px 0;
    }

    .mobile-bottom-nav a {
      color: var(--text-muted);
      font-size: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
    }

    .mobile-bottom-nav a i {
      font-size: 18px;
    }

    .mobile-bottom-nav a.active {
      color: var(--primary);
    }

    /* Hero */
    .hero {
      padding: 160px 0 100px;
      background-image: url('/assets/images/backpic/back-1.webp'), var(--gradient-overlay);
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      position: relative;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }

    .hero-text .subtitle {
      font-size: 18px;
      color: var(--text-body);
      margin-bottom: 32px;
      max-width: 450px;
    }

    .hero-buttons {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .btn-primary {
      background: var(--primary);
      color: var(--bg-deep);
      padding: 14px 32px;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 14px rgba(0,229,255,0.4);
       font-weight: 600;
    }

    .btn-primary:hover {
      box-shadow: var(--shadow-button);
      background: #33EAFF;
    }

    .btn-secondary {
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
      padding: 14px 32px;
      border-radius: var(--radius-sm);
    }

    .btn-secondary:hover {
      background: rgba(0,229,255,0.1);
    }

    .live-card {
      background: rgba(255,255,255,0.03);
      backdrop-filter: blur(20px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .live-badge {
      background: var(--secondary);
      color: white;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      width: fit-content;
      animation: pulse 1.5s infinite;
    }

    .live-badge i {
      font-size: 8px;
    }

    @keyframes pulse {
      0% { opacity: 1; }
      50% { opacity: 0.6; }
      100% { opacity: 1; }
    }

    .score-display {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-family: var(--font-mono);
      font-size: 56px;
      font-weight: 700;
      color: var(--text-primary);
    }

    .team-name {
      font-size: 18px;
      color: var(--text-body);
      font-family: 'PingFang SC', sans-serif;
      font-weight: 500;
    }

    .match-info {
      color: var(--text-muted);
      font-size: 14px;
      display: flex;
      justify-content: space-between;
    }

    /* 数据看板 */
    .data-dashboard {
      padding: 100px 0;
      background-color: #0F1520;
    }

    .dashboard-cards {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 40px;
    }

    .data-card {
      background: rgba(255,255,255,0.03);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      box-shadow: 0 4px 12px rgba(0,0,0,0.2);
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .data-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-active);
      box-shadow: var(--shadow-card);
    }

    .card-header {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-muted);
      font-size: 14px;
    }

    .live-score {
      font-family: var(--font-mono);
      font-size: 42px;
      font-weight: 700;
      color: var(--text-primary);
      transition: transform 0.2s;
    }

    .data-card:hover .live-score {
      transform: scale(1.1);
      color: var(--primary);
    }

    .status-tag {
      color: var(--secondary);
      font-size: 13px;
      font-weight: 600;
    }

    /* 服务矩阵 */
    .services {
      padding: 100px 0;
      background-color: var(--bg-deep);
    }

    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 40px;
    }

    .service-card {
      background: rgba(255,255,255,0.02);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .service-card:hover {
      border-color: var(--border-active);
      transform: translateY(-4px);
    }

    .service-icon {
      font-size: 28px;
      color: var(--primary);
      transition: color 0.2s;
    }

    .service-card:hover .service-icon {
      color: var(--secondary);
    }

    .service-link {
      margin-top: auto;
      font-weight: 600;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* 对比表 */
    .comparison {
      padding: 100px 0;
      background-color: #0F1520;
    }

    .table-wrapper {
      overflow-x: auto;
      margin-top: 40px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
    }

    table {
      width: 100%;
      border-collapse: collapse;
      min-width: 600px;
      background: rgba(0,0,0,0.2);
    }

    th {
      background: rgba(0,229,255,0.08);
      color: var(--text-primary);
      padding: 18px 20px;
      text-align: left;
      font-weight: 600;
    }

    td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-subtle);
      color: var(--text-body);
    }

    .highlight-col {
      border-left: 2px solid var(--primary);
      background: rgba(0,229,255,0.03);
    }

    .check-icon {
      color: var(--primary);
    }

    /* FAQ */
    .faq {
      padding: 100px 0;
      background-color: var(--bg-deep);
    }

    .faq-list {
      max-width: 800px;
      margin: 40px auto 0;
    }

    .faq-item {
      border-bottom: 1px solid var(--border-subtle);
      padding: 20px 0;
      cursor: pointer;
    }

    .faq-question {
      display: flex;
      align-items: center;
      gap: 16px;
      font-weight: 600;
      font-size: 18px;
      color: var(--text-primary);
      transition: color 0.2s;
    }

    .faq-question i {
      color: var(--primary);
      font-size: 20px;
      transition: color 0.2s;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
      color: var(--text-muted);
      padding-left: 36px;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 12px;
    }

    .faq-item.active .faq-question i {
      color: var(--secondary);
    }

    /* CTA */
    .cta-section {
      padding: 120px 0;
      background-color: #0F1520;
      background-image: radial-gradient(circle at 50% 50%, rgba(0,229,255,0.1) 0%, transparent 60%);
      text-align: center;
    }

    .cta-title {
      font-size: 40px;
      margin-bottom: 16px;
    }

    .cta-buttons {
      display: flex;
      gap: 20px;
      justify-content: center;
      margin-top: 32px;
      flex-wrap: wrap;
    }

    /* Footer */
    .footer {
      background: #0A0E17;
      padding: 60px 0 30px;
      border-top: 1px solid var(--border-subtle);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      color: var(--primary);
      margin-bottom: 16px;
      font-size: 16px;
      text-transform: uppercase;
    }

    .footer-col a {
      display: block;
      color: var(--text-muted);
      margin-bottom: 10px;
      font-size: 14px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 24px;
      border-top: 1px solid var(--border-subtle);
      color: var(--text-muted);
      font-size: 14px;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      .dashboard-cards {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .header {
        background: rgba(10,14,23,0.95);
      }
      .nav-links {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .mobile-bottom-nav {
        display: flex;
      }
      .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
      }
      .hero-text .subtitle {
        max-width: 100%;
      }
      .hero-buttons {
        justify-content: center;
      }
      h1 {
        font-size: 36px;
      }
      h2 {
        font-size: 28px;
      }
      .dashboard-cards {
        grid-template-columns: 1fr;
        overflow-x: auto;
        display: flex;
        gap: 16px;
        padding-bottom: 8px;
      }
      .data-card {
        min-width: 220px;
      }
      .service-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .score-display {
        font-size: 42px;
      }
    }

    @media (max-width: 480px) {
      .container {
        padding: 0 16px;
      }
      .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }