/* roulang page: index */
:root {
      --bg-dark-0: #070B14;
      --bg-dark-1: #0C1222;
      --bg-dark-2: #121A2F;
      --accent-blue: #1E6BFF;
      --accent-cyan: #00D8F6;
      --accent-green: #00E599;
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --border-line: rgba(255, 255, 255, 0.08);
      --glass-card: rgba(18, 26, 47, 0.65);
    }

    body {
      background-color: var(--bg-dark-0);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }

    .glass-panel {
      background: var(--glass-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-line);
    }

    .glass-card-hover {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card-hover:hover {
      border-color: rgba(30, 107, 255, 0.4);
      transform: translateY(-4px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(30, 107, 255, 0.15);
    }

    .glow-btn {
      background: linear-gradient(135deg, #1E6BFF 0%, #00D8F6 100%);
      box-shadow: 0 0 20px rgba(30, 107, 255, 0.4);
      transition: all 0.3s ease;
    }
    .glow-btn:hover {
      box-shadow: 0 0 32px rgba(0, 216, 246, 0.6);
      transform: translateY(-2px);
    }

    .pulse-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent-green);
      box-shadow: 0 0 8px var(--accent-green);
      animation: pulseAnim 2s infinite;
    }
    @keyframes pulseAnim {
      0% { transform: scale(0.95); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.95); opacity: 0.8; }
    }

    .section-divider {
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }