/* roulang page: index */
:root {
      --primary-green: #0A9E5A;
      --deep-charcoal: #1E1E24;
      --accent-amber: #F5A623;
      --bg-light: #FAFAFA;
      --card-white: #FFFFFF;
      --text-dark: #111111;
      --text-body: #3A3A3A;
      --text-muted: #7D7D7D;
      --border-light: #E6E6E8;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
      --font-mono: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
      --radius-card: 12px;
      --radius-btn: 30px;
      --shadow-sm: 0 2px 12px rgba(0,0,0,0.04);
      --shadow-hover: 0 8px 28px rgba(0,0,0,0.08);
      --transition-smooth: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-light);
      color: var(--text-body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    img {
      max-width: 100%;
      display: block;
      height: auto;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button, .btn {
      cursor: pointer;
      font-family: inherit;
      border: none;
      background: none;
    }
    /* 导航栏 */
    .main-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 64px;
      background: #FFFFFF;
      box-shadow: 0 1px 0 rgba(0,0,0,0.05);
      z-index: 1000;
      display: flex;
      align-items: center;
      transition: var(--transition-smooth);
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      font-size: 20px;
      color: var(--text-dark);
    }
    .logo-icon {
      width: 28px;
      height: 28px;
      background: var(--primary-green);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: bold;
      font-size: 16px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 4px 0;
      transition: color 0.2s;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary-green);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary-green);
      border-radius: 2px;
    }
    .btn-primary {
      background: var(--primary-green);
      color: white;
      padding: 10px 24px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 14px;
      transition: var(--transition-smooth);
      display: inline-block;
      text-align: center;
      box-shadow: 0 2px 6px rgba(10,158,90,0.15);
    }
    .btn-primary:hover {
      background: #0C7A45;
      box-shadow: 0 0 0 4px rgba(10,158,90,0.2);
    }
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
    }
    .hamburger span {
      width: 24px;
      height: 2px;
      background: var(--text-dark);
      border-radius: 2px;
      transition: 0.2s;
    }
    /* 移动端导航面板 */
    .mobile-menu {
      position: fixed;
      top: 0;
      right: -100%;
      width: 75%;
      max-width: 300px;
      height: 100vh;
      background: var(--deep-charcoal);
      padding: 80px 24px 40px;
      display: flex;
      flex-direction: column;
      gap: 28px;
      z-index: 999;
      transition: right 0.3s ease;
    }
    .mobile-menu.active {
      right: 0;
    }
    .mobile-menu a {
      color: white;
      font-size: 18px;
      font-weight: 500;
      border-bottom: 1px solid rgba(255,255,255,0.2);
      padding-bottom: 12px;
    }
    /* Hero */
    .hero {
      padding: 140px 0 100px;
      background: #FAFAFA;
      background-image: radial-gradient(circle at 30% 40%, rgba(10,158,90,0.03) 0%, transparent 40%);
      position: relative;
    }
    .hero-grid {
      display: flex;
      align-items: center;
      gap: 60px;
    }
    .hero-left {
      flex: 1;
    }
    .hero-left h1 {
      font-size: 44px;
      font-weight: 700;
      line-height: 1.2;
      color: var(--text-dark);
      margin-bottom: 16px;
    }
    .hero-sub {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 32px;
    }
    .hero-buttons {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-outline {
      border: 2px solid var(--primary-green);
      color: var(--primary-green);
      background: transparent;
      padding: 12px 28px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: var(--transition-smooth);
    }
    .btn-outline:hover {
      background: var(--primary-green);
      color: white;
    }
    .hero-right {
      flex: 1;
      background: var(--deep-charcoal);
      border-radius: 20px;
      padding: 28px;
      color: white;
      box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    }
    .data-row {
      display: flex;
      justify-content: space-between;
      margin-bottom: 20px;
      font-family: var(--font-mono);
    }
    .live-badge {
      color: var(--accent-amber);
      font-weight: 600;
    }
    .odds-number {
      font-size: 28px;
      font-weight: 700;
      color: var(--accent-amber);
    }
    .pulse {
      animation: pulse 1.8s infinite;
    }
    @keyframes pulse {
      0% { opacity: 1; }
      50% { opacity: 0.7; }
      100% { opacity: 1; }
    }
    /* 指标条 */
    .stats-strip {
      background: #F4F5F7;
      padding: 40px 0;
    }
    .stats-grid {
      display: flex;
      justify-content: space-around;
      text-align: center;
      flex-wrap: wrap;
      gap: 24px;
    }
    .stat-item {
      flex: 1;
      min-width: 150px;
    }
    .stat-number {
      font-size: 36px;
      font-weight: 700;
      color: var(--primary-green);
      font-family: var(--font-mono);
    }
    .stat-label {
      color: var(--text-muted);
      font-size: 14px;
      margin-top: 4px;
    }
    /* 服务矩阵 不对称网格 */
    .services {
      padding: 100px 0;
    }
    .services h2 {
      font-size: 32px;
      font-weight: 600;
      margin-bottom: 48px;
      color: var(--text-dark);
    }
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: var(--card-white);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
      border-left: 4px solid var(--primary-green);
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .service-card.large {
      grid-column: span 2;
      display: flex;
      flex-direction: column;
    }
    .card-img {
      height: 200px;
      background: #F0F2F5;
      border-radius: 8px;
      margin-bottom: 16px;
      background-size: cover;
      background-position: center;
    }
    .service-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin: 12px 0 8px;
      color: var(--text-dark);
    }
    /* 对比区 */
    .compare {
      padding: 100px 0;
      background: white;
    }
    .compare h2 {
      font-size: 32px;
      font-weight: 600;
      margin-bottom: 48px;
    }
    .compare-table {
      display: flex;
      gap: 32px;
      align-items: center;
      flex-wrap: wrap;
    }
    .compare-col {
      flex: 1;
      background: #F9FAFB;
      border-radius: 16px;
      padding: 32px;
      min-width: 250px;
    }
    .compare-col.booste {
      background: white;
      border-top: 4px solid var(--primary-green);
      box-shadow: 0 8px 20px rgba(0,0,0,0.04);
    }
    .compare-item {
      display: flex;
      justify-content: space-between;
      margin: 16px 0;
    }
    .vs-badge {
      font-weight: 700;
      color: var(--deep-charcoal);
      font-size: 20px;
    }
    /* FAQ */
    .faq {
      padding: 100px 0;
    }
    .faq h2 {
      font-size: 32px;
      font-weight: 600;
      margin-bottom: 32px;
    }
    .faq-tabs {
      display: flex;
      gap: 16px;
      margin-bottom: 32px;
      flex-wrap: wrap;
    }
    .tab-btn {
      padding: 8px 20px;
      border-radius: 20px;
      background: #EDEDED;
      font-weight: 500;
      transition: 0.2s;
    }
    .tab-btn.active {
      background: var(--primary-green);
      color: white;
    }
    .accordion-item {
      background: white;
      border-radius: 10px;
      margin-bottom: 12px;
      box-shadow: var(--shadow-sm);
      padding: 0 20px;
    }
    .accordion-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 0;
      font-weight: 600;
      cursor: pointer;
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      border-left: 3px solid var(--primary-green);
      padding-left: 16px;
      margin-bottom: 16px;
    }
    .accordion-content.open {
      max-height: 200px;
    }
    /* CTA */
    .cta-section {
      background: var(--deep-charcoal);
      padding: 100px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-glow {
      position: absolute;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(10,158,90,0.25) 0%, transparent 70%);
      top: -100px;
      left: 50%;
      transform: translateX(-50%);
    }
    .cta-section h2 {
      color: white;
      font-size: 36px;
      margin-bottom: 16px;
    }
    .btn-amber {
      background: var(--accent-amber);
      color: white;
      padding: 16px 48px;
      border-radius: 40px;
      font-weight: 700;
      font-size: 18px;
      transition: 0.2s;
    }
    .btn-amber:hover {
      background: #E09510;
      transform: scale(1.03);
    }
    footer {
      background: #1A1A1F;
      color: #999;
      text-align: center;
      padding: 32px 0;
      font-size: 14px;
    }
    @media (max-width: 1024px) {
      .hero-grid { flex-direction: column; }
      .service-grid { grid-template-columns: repeat(2,1fr); }
      .service-card.large { grid-column: span 2; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .hero-left h1 { font-size: 32px; }
      .service-grid { grid-template-columns: 1fr; }
      .service-card.large { grid-column: span 1; }
      .compare-table { flex-direction: column; }
      .stats-grid { flex-direction: column; }
    }