/* roulang page: index */
:root {
      --bg-base: #0D0F12;
      --bg-card: #16191E;
      --accent-green: #10B981;
      --accent-glow: rgba(16, 185, 129, 0.15);
      --border-subtle: rgba(255, 255, 255, 0.08);
      --text-main: #F3F4F6;
      --text-muted: #94A3B8;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: Inter, PingFang SC, "Helvetica Neue", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .custom-border {
      border: 1px solid var(--border-subtle);
    }
    .glow-hover {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .glow-hover:hover {
      border-color: rgba(16, 185, 129, 0.45);
      box-shadow: 0 10px 30px -10px rgba(16, 185, 129, 0.2);
      transform: translateY(-4px);
    }
    .hero-mask {
      background: linear-gradient(180deg, rgba(13, 15, 18, 0.75) 0%, rgba(13, 15, 18, 0.95) 85%, #0D0F12 100%);
    }
    .radar-grid {
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    }
    /* Pulse dot animation */
    @keyframes greenPulse {
      0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
      100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }
    .pulse-point {
      animation: greenPulse 2s infinite;
    }