/* roulang page: index */
:root {
      --primary: #0f172a;
      --secondary: #1e293b;
      --brand: #2563eb;
      --teal: #0d9488;
      --bg-light: #f8fafc;
      --border-color: #e2e8f0;
    }
    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: #334155;
      background-color: #ffffff;
      overflow-x: hidden;
    }
    .hero-pattern {
      background-image: linear-gradient(rgba(15, 23, 42, 0.88), rgba(11, 15, 25, 0.94)), url('/assets/images/fe89b9b9f4f4d3d7.webp');
      background-size: cover;
      background-position: center;
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06), 0 4px 6px -2px rgba(15, 23, 42, 0.03);
    }
    .custom-shadow-lg {
      box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.1), 0 8px 12px -3px rgba(15, 23, 42, 0.05);
    }