/* roulang page: index */
:root {
      --primary: #E8530A;
      --primary-dark: #D14808;
      --secondary: #1A1A2E;
      --accent: #FFB800;
      --bg: #F5F0EB;
      --card-bg: #FFFFFF;
      --card-hover-bg: #FFF7F0;
      --text-main: #1A1A2E;
      --text-muted: #5C5C6E;
      --border-light: rgba(26, 26, 46, 0.06);
      --border-glass: rgba(255, 255, 255, 0.15);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-card: 0 2px 12px rgba(26, 26, 46, 0.06);
      --shadow-hover: 0 8px 28px rgba(232, 83, 10, 0.12);
      --transition: 0.3s ease;
      --font-mono: 'Roboto Mono', 'DIN Alternate', 'Courier New', monospace;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text-main);
      line-height: 1.7;
      font-size: 16px;
      font-weight: 400;
      overflow-x: hidden;
    }
    h1, h2, h3, h4 {
      font-weight: 700;
      line-height: 1.3;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition);
    }
    a:hover {
      color: var(--primary-dark);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* 导航栏 - 透明玻璃 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(26, 26, 46, 0.25);
      backdrop-filter: blur(20px) saturate(180%);
      -webkit-backdrop-filter: blur(20px) saturate(180%);
      border-bottom: 1px solid var(--border-glass);
      transition: background var(--transition), box-shadow var(--transition);
      height: 72px;
    }
    .site-header.scrolled {
      background: rgba(26, 26, 46, 0.92);
      box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .logo {
      font-size: 24px;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }
    .logo i {
      font-size: 28px;
      color: var(--accent);
    }
    .nav-links {
      display: flex;
      gap: 28px;
      align-items: center;
    }
    .nav-links a {
      color: rgba(255, 255, 255, 0.85);
      font-weight: 500;
      font-size: 15px;
      position: relative;
      padding: 6px 0;
      transition: color var(--transition);
    }
    .nav-links a:hover {
      color: #fff;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width var(--transition);
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .nav-cta {
      background: var(--accent);
      color: var(--secondary) !important;
      padding: 10px 22px;
      border-radius: 6px;
      font-weight: 600;
      transition: all var(--transition);
    }
    .nav-cta:hover {
      background: #e6a800;
      transform: translateY(-1px);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #fff;
      font-size: 28px;
      cursor: pointer;
    }
    /* 移动端导航面板 */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      width: 100%;
      background: rgba(26, 26, 46, 0.96);
      backdrop-filter: blur(20px);
      padding: 20px;
      flex-direction: column;
      gap: 18px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .mobile-menu a {
      color: rgba(255,255,255,0.9);
      font-size: 18px;
      font-weight: 500;
    }
    /* Hero */
    .hero {
      min-height: 100vh;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      position: relative;
      display: flex;
      align-items: center;
      color: #fff;
    }
    .hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(26,26,46,0.82) 0%, rgba(232,83,10,0.45) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      width: 100%;
      padding: 120px 0 60px;
    }
    .hero-grid {
      display: flex;
      align-items: center;
      gap: 50px;
      flex-wrap: wrap;
    }
    .hero-text {
      flex: 1 1 500px;
    }
    .hero-text h1 {
      font-size: 48px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 20px;
      line-height: 1.2;
    }
    .hero-sub {
      font-size: 18px;
      color: rgba(255,255,255,0.8);
      margin-bottom: 32px;
    }
    .btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn {
      display: inline-block;
      padding: 14px 32px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      text-align: center;
      cursor: pointer;
      transition: all var(--transition);
      border: 2px solid transparent;
      font-size: 16px;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      border-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(232,83,10,0.4);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid #fff;
      color: #fff;
    }
    .btn-outline:hover {
      background: rgba(255,255,255,0.15);
      transform: translateY(-2px);
    }
    .btn-accent {
      background: var(--accent);
      color: var(--secondary);
      border-color: var(--accent);
      padding: 18px 40px;
      font-size: 18px;
    }
    .btn-accent:hover {
      background: #e6a800;
      transform: translateY(-2px);
    }
    .live-card {
      background: rgba(255,255,255,0.1);
      backdrop-filter: blur(12px);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      border: 1px solid rgba(255,255,255,0.25);
      flex: 0 0 320px;
      color: #fff;
    }
    .live-teams {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .live-score {
      font-family: var(--font-mono);
      font-size: 42px;
      font-weight: 700;
      text-align: center;
      margin: 12px 0;
    }
    .live-status {
      text-align: center;
      color: var(--accent);
      font-weight: 600;
      animation: pulse 1.2s infinite;
    }
    @keyframes pulse {
      0% { opacity: 1; }
      50% { opacity: 0.5; }
      100% { opacity: 1; }
    }
    /* 板块通用 */
    .section {
      padding: 100px 0;
    }
    .section h2 {
      font-size: 36px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--secondary);
    }
    .section-desc {
      color: var(--text-muted);
      margin-bottom: 48px;
      max-width: 700px;
    }
    /* 功能卡片 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .feature-card {
      background: var(--card-bg);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
      transition: all var(--transition);
    }
    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(232,83,10,0.2);
    }
    .feature-icon {
      font-size: 36px;
      color: var(--primary);
      margin-bottom: 18px;
    }
    .feature-card h3 {
      font-size: 22px;
      margin-bottom: 12px;
    }
    /* 场景交替 */
    .scenario-row {
      display: flex;
      align-items: center;
      gap: 50px;
      margin-bottom: 80px;
      flex-wrap: wrap;
    }
    .scenario-img {
      flex: 1 1 400px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .scenario-text {
      flex: 1 1 400px;
    }
    .scenario-text h3 {
      font-size: 24px;
      margin-bottom: 16px;
    }
    /* 案例卡片 */
    .cases-scroll {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      padding-bottom: 20px;
      scroll-snap-type: x mandatory;
    }
    .case-card {
      flex: 0 0 220px;
      background: #fff;
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow-card);
      scroll-snap-align: start;
    }
    .case-number {
      font-family: var(--font-mono);
      font-size: 38px;
      font-weight: 700;
      color: var(--primary);
    }
    /* 价格卡 */
    .pricing-grid {
      display: flex;
      gap: 30px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .price-card {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 40px 28px;
      flex: 1 1 280px;
      max-width: 340px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
      transition: all var(--transition);
      position: relative;
    }
    .price-card.featured {
      border: 2px solid var(--accent);
      transform: scale(1.02);
    }
    .badge {
      background: var(--accent);
      color: var(--secondary);
      font-weight: 600;
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 13px;
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
    }
    .price-amount {
      font-family: var(--font-mono);
      font-size: 42px;
      font-weight: 700;
      margin: 20px 0;
    }
    /* FAQ */
    .accordion-item {
      background: #F5F0EB;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      border-left: 4px solid var(--primary);
    }
    .accordion-header {
      padding: 16px 20px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .accordion-content {
      padding: 0 20px 16px;
      display: none;
      color: var(--text-muted);
    }
    .accordion-item.active {
      background: #fff;
      border-left-color: var(--accent);
    }
    .accordion-item.active .accordion-content {
      display: block;
    }
    /* CTA 横幅 */
    .cta-banner {
      background: linear-gradient(135deg, #E8530A 0%, #FF8C42 100%);
      padding: 80px 20px;
      text-align: center;
    }
    /* 页脚 */
    .site-footer {
      background: var(--secondary);
      color: rgba(255,255,255,0.7);
      padding: 60px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }
    .footer-grid a {
      color: rgba(255,255,255,0.65);
    }
    .footer-grid a:hover {
      color: #fff;
    }
    .copyright {
      border-top: 1px solid rgba(255,255,255,0.1);
      margin-top: 40px;
      padding-top: 20px;
      text-align: center;
      font-size: 14px;
    }
    @media (max-width: 1024px) {
      .features-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .menu-toggle { display: block; }
      .mobile-menu.show { display: flex; }
      .hero-grid { flex-direction: column; }
      .hero-text h1 { font-size: 36px; }
      .features-grid { grid-template-columns: 1fr; }
      .pricing-grid { flex-direction: column; align-items: center; }
      .footer-grid { grid-template-columns: 1fr; }
    }