/* roulang page: index */
:root {
      --primary-color: #0A5C36;
      --accent-pulse: #00E676;
      --accent-crimson: #FF3D00;
      --bg-dark: #0D1117;
      --bg-card-dark: #161B22;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-light: #E2E8F0;
    }
    
    html {
      scroll-behavior: smooth;
    }
    
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #F8FAFC;
      line-height: 1.75;
      overflow-x: hidden;
    }

    .live-pulse {
      box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.7);
      animation: pulse 1.8s infinite;
    }
    @keyframes pulse {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(0, 230, 118, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 230, 118, 0); }
    }

    .card-hover-fx {
      transition: all 0.28s ease;
    }
    .card-hover-fx:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 30px -6px rgba(10, 92, 54, 0.12);
      border-color: rgba(0, 230, 118, 0.4);
    }

    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(13, 17, 23, 0.94) 0%, rgba(10, 92, 54, 0.88) 100%);
    }

    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .accordion-item.active .accordion-content {
      max-height: 240px;
    }
    .accordion-item.active .chevron-icon {
      transform: rotate(180deg);
    }