/* roulang page: index */
:root {
      --primary: #1E40AF;
      --accent: #0D9488;
      --bg-slate: #F8FAFC;
      --navy: #0F172A;
      --text-main: #334155;
      --border-color: #E2E8F0;
    }
    body {
      background-color: var(--bg-slate);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .custom-shadow {
      box-shadow: 0 10px 30px rgba(30, 64, 175, 0.06);
    }
    .custom-shadow-lg {
      box-shadow: 0 20px 40px rgba(15, 23, 42, 0.1);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(30, 64, 175, 0.12) 0%, rgba(248, 250, 252, 0) 70%);
    }