/* roulang page: index */
:root {
      --primary: #00E599;
      --primary-dark: #05B77B;
      --secondary: #0B0F19;
      --surface: #111827;
      --accent: #F97316;
    }
    * { box-sizing: border-box; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
    .glass-nav {
      background: rgba(11, 15, 25, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .text-glow {
      text-shadow: 0 0 20px rgba(0, 229, 153, 0.45);
    }
    .gradient-border {
      border: 1px solid rgba(255, 255, 255, 0.1);
      transition: all 0.3s ease;
    }
    .gradient-border:hover {
      border-color: rgba(0, 229, 153, 0.5);
      box-shadow: 0 10px 30px -10px rgba(0, 229, 153, 0.2);
    }
    details summary::-webkit-details-marker {
      display: none;
    }