/* roulang page: index */
:root {
      --primary-color: #1E40AF;
      --accent-color: #0284C7;
      --safe-color: #0D9488;
      --bg-light: #F8FAFC;
      --text-dark: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
    }
    body {
      background-color: var(--bg-light);
      color: var(--text-body);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }
    .tnum { font-variant-numeric: tabular-nums; }
    .card-shadow {
      box-shadow: 0 10px 25px -5px rgba(30, 64, 175, 0.08), 0 8px 10px -6px rgba(30, 64, 175, 0.04);
    }
    .card-shadow-hover:hover {
      box-shadow: 0 20px 30px -10px rgba(30, 64, 175, 0.16), 0 10px 15px -5px rgba(30, 64, 175, 0.08);
      transform: translateY(-4px);
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
    }