/* roulang page: index */
:root {
      --bg-main: #0B0F17;
      --bg-card: #131B2A;
      --bg-darker: #070A0F;
      --brand-green: #00E676;
      --brand-emerald: #10B981;
      --brand-orange: #FF3D00;
      --brand-amber: #F97316;
      --text-highlight: #F8FAFC;
      --text-body: #CBD5E1;
      --text-muted: #94A3B8;
      --border-dark: rgba(30, 41, 59, 0.85);
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-body);
      font-family: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .font-tabular {
      font-variant-numeric: tabular-nums;
    }
    .glow-box:hover {
      box-shadow: 0 10px 30px -5px rgba(0, 230, 118, 0.12);
      border-color: rgba(0, 230, 118, 0.4);
    }
    .pulse-dot {
      box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.7);
      animation: pulseGreen 1.8s infinite;
    }
    @keyframes pulseGreen {
      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 8px rgba(0, 230, 118, 0);
      }
      100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(0, 230, 118, 0);
      }
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
    }
    .accordion-content.open {
      max-height: 500px;
      transition: max-height 0.35s ease-in-out;
    }