/* roulang page: index */
:root {
      --primary: #E56020;
      --primary-hover: #CC5518;
      --primary-light: #FFF0E8;
      --secondary: #1A1A2E;
      --secondary-light: #16213E;
      --gray-bg: #F0F2F5;
      --card-bg: #FFFFFF;
      --text-main: #1A1A2E;
      --text-secondary: #555;
      --text-light: #AAA;
      --accent-green: #00C9A7;
      --border-light: rgba(0,0,0,0.04);
      --shadow-card: 0 4px 12px rgba(0,0,0,0.06);
      --shadow-hover: 0 8px 24px rgba(229,96,32,0.12);
      --radius-lg: 12px;
      --radius-md: 8px;
      --font-mono: 'Roboto Mono', monospace;
      --font-sans: 'Noto Sans SC', sans-serif;
      --transition: all 0.25s ease;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-sans);
      background-color: #FFFFFF;
      color: var(--text-main);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 导航 */
    .main-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      height: 64px;
      display: flex;
      align-items: center;
      background: rgba(26,26,46,0.85);
      backdrop-filter: blur(12px);
      transition: var(--transition);
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .logo {
      font-size: 1.5rem;
      font-weight: 700;
      color: #fff;
      text-decoration: none;
      letter-spacing: 0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .logo i {
      color: var(--primary);
      font-size: 1.8rem;
    }
    .nav-links {
      display: flex;
      gap: 24px;
    }
    .nav-links a {
      color: #ddd;
      text-decoration: none;
      font-weight: 500;
      font-size: 0.95rem;
      transition: color 0.2s;
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .header-cta {
      background: var(--primary);
      color: white;
      padding: 10px 22px;
      border-radius: var(--radius-md);
      font-weight: 600;
      text-decoration: none;
      font-size: 0.9rem;
      transition: var(--transition);
      white-space: nowrap;
    }
    .header-cta:hover {
      background: var(--primary-hover);
      transform: scale(1.02);
    }
    /* 移动端底部导航 */
    .mobile-bottom-nav {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(26,26,46,0.96);
      backdrop-filter: blur(20px);
      border-top: 1px solid rgba(255,255,255,0.08);
      z-index: 999;
      justify-content: space-around;
      padding: 8px 0 12px;
    }
    .mobile-bottom-nav a {
      color: #ccc;
      text-decoration: none;
      font-size: 0.7rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
      transition: 0.2s;
    }
    .mobile-bottom-nav a i {
      font-size: 1.2rem;
    }
    .mobile-bottom-nav a:hover, .mobile-bottom-nav a.active {
      color: var(--primary);
    }
    /* Hero 分屏 */
    .hero-section {
      display: flex;
      min-height: 100vh;
      padding-top: 64px;
      background: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%);
      position: relative;
      overflow: hidden;
    }
    .hero-left {
      flex: 1 1 45%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 40px 60px 40px 80px;
      color: white;
      position: relative;
      z-index: 2;
    }
    .hero-right {
      flex: 1 1 55%;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1;
    }
    .hero-right::after {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(26,26,46,0.55);
    }
    .scoreboard-mock {
      position: relative;
      z-index: 2;
      background: rgba(20,20,35,0.8);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 24px;
      padding: 30px 40px;
      color: white;
      font-family: var(--font-mono);
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .score-teams {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 32px;
      font-size: 2.2rem;
      font-weight: 700;
    }
    .score-number {
      font-size: 3.8rem;
      color: var(--accent-green);
      margin: 0 16px;
    }
    .live-badge {
      background: var(--primary);
      color: white;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-family: var(--font-sans);
      display: inline-block;
      margin-bottom: 16px;
    }
    .hero-left h1 {
      font-size: 3.2rem;
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 20px;
    }
    .hero-left .subtitle {
      font-size: 1.2rem;
      color: #ccc;
      margin-bottom: 32px;
      max-width: 480px;
    }
    .hero-buttons {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: var(--primary);
      color: white;
      padding: 14px 32px;
      border-radius: var(--radius-md);
      font-weight: 600;
      text-decoration: none;
      display: inline-block;
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: scale(1.02);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: white;
      padding: 14px 32px;
      border-radius: var(--radius-md);
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
    }
    .btn-outline:hover {
      background: var(--primary-light);
      color: var(--primary);
      border-color: var(--primary);
    }
    /* 通用板块 */
    section {
      padding: 80px 0;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 16px;
      text-align: center;
    }
    .section-desc {
      color: var(--text-secondary);
      text-align: center;
      max-width: 700px;
      margin: 0 auto 48px;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
      transition: var(--transition);
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .icon-circle {
      font-size: 2rem;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .card h3 {
      font-size: 1.3rem;
      margin-bottom: 12px;
    }
    /* 场景卡片 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scenario-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-radius: var(--radius-lg);
      margin-bottom: 16px;
    }
    /* 数据仪表盘 */
    .stats-row {
      display: flex;
      justify-content: space-around;
      flex-wrap: wrap;
      background: #F0F2F5;
      border-radius: var(--radius-lg);
      padding: 40px 20px;
      text-align: center;
    }
    .stat-item {
      font-family: var(--font-mono);
    }
    .stat-number {
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--primary);
    }
    /* 价格卡片 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      max-width: 800px;
      margin: 0 auto;
    }
    .pricing-card {
      background: white;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-card);
      border-top: 4px solid transparent;
    }
    .pricing-card.premium {
      border-top-color: var(--primary);
    }
    .price {
      font-size: 2.5rem;
      font-family: var(--font-mono);
      margin: 16px 0;
    }
    /* FAQ */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
    }
    .faq-item {
      background: white;
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      padding: 18px 24px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
      border-left: 4px solid var(--primary);
      cursor: pointer;
    }
    .faq-item h3 {
      font-size: 1.1rem;
    }
    /* CTA dark */
    .cta-dark {
      background: #1A1A2E;
      color: white;
      text-align: center;
      padding: 80px 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      color: #AAA;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      margin-top: 40px;
      padding-top: 24px;
      text-align: center;
      font-size: 0.9rem;
    }
    @media (max-width: 1024px) {
      .hero-left { padding: 40px; }
      .grid-3, .scenario-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .hero-section { flex-direction: column; }
      .hero-left { padding: 40px 24px; text-align: center; align-items: center; }
      .hero-left h1 { font-size: 2.4rem; }
      .hero-right { min-height: 320px; }
      .nav-links, .header-cta { display: none; }
      .mobile-bottom-nav { display: flex; }
      .grid-3, .scenario-grid, .pricing-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .stats-row { flex-direction: column; gap: 24px; }
    }