/* roulang page: index */
:root {
      --bg-dark: #020617;
      --card-bg: #0f172a;
      --border-color: rgba(255, 255, 255, 0.08);
      --brand-glow: rgba(22, 163, 74, 0.35);
    }
    body {
      background-color: var(--bg-dark);
      color: #f1f5f9;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #334155;
      border-radius: 9999px;
    }
    .glass-nav {
      background: rgba(2, 6, 23, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 30px -10px rgba(0, 0, 0, 0.6), 0 0 20px 0 var(--brand-glow);
    }