/* roulang page: index */
:root {
      --bg-dark: #080c14;
      --bg-surface: #0d1527;
      --bg-card: rgba(255, 255, 255, 0.04);
      --border-glass: rgba(255, 255, 255, 0.08);
      --neon-cyan: #00f0ff;
      --neon-orange: #ff6b00;
      --neon-purple: #7928ca;
    }

    body {
      background-color: var(--bg-dark);
      color: #e2e8f0;
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }

    .tactical-grid-bg {
      background-image: 
        radial-gradient(circle at 50% 20%, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 100% 100%, 48px 48px, 48px 48px;
    }

    .glass-panel {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
      box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .glass-panel:hover {
      border-color: rgba(0, 240, 255, 0.35);
      box-shadow: 0 12px 40px 0 rgba(0, 240, 255, 0.12);
    }

    .btn-glow {
      background: linear-gradient(135deg, #00f0ff 0%, #0099ff 100%);
      color: #040810;
      font-weight: 700;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
      transition: all 0.25s ease;
    }

    .btn-glow:hover {
      transform: translateY(-2px) scale(1.02);
      box-shadow: 0 0 32px rgba(0, 240, 255, 0.7);
    }

    .btn-orange-glow {
      background: linear-gradient(135deg, #ff6b00 0%, #ff3b00 100%);
      color: #ffffff;
      font-weight: 700;
      box-shadow: 0 0 20px rgba(255, 107, 0, 0.45);
      transition: all 0.25s ease;
    }

    .btn-orange-glow:hover {
      transform: translateY(-2px) scale(1.02);
      box-shadow: 0 0 32px rgba(255, 107, 0, 0.75);
    }

    .text-glow-cyan {
      text-shadow: 0 0 12px rgba(0, 240, 255, 0.5);
    }

    .text-glow-orange {
      text-shadow: 0 0 12px rgba(255, 107, 0, 0.5);
    }

    /* Custom Scrollbar */
    ::-webkit-scrollbar {
      width: 8px;
    }
    ::-webkit-scrollbar-track {
      background: #080c14;
    }
    ::-webkit-scrollbar-thumb {
      background: #1e293b;
      border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
      background: #00f0ff;
    }