/* roulang page: index */
:root {
      --primary: #1e40af;
      --primary-light: #2563eb;
      --accent: #06b6d4;
      --bg-base: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
    }
    body {
      color: var(--text-main);
      background-color: var(--bg-base);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    .custom-shadow {
      box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.18) 0%, rgba(15, 23, 42, 0) 70%);
    }