/* roulang page: index */
:root {
      --primary: #1D4ED8;
      --secondary: #0284C7;
      --navy: #0B132B;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
    }
    .custom-shadow-lg {
      box-shadow: 0 20px 30px -10px rgba(15, 23, 42, 0.08), 0 10px 15px -5px rgba(29, 78, 216, 0.05);
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(11, 19, 43, 0.94) 0%, rgba(29, 78, 216, 0.88) 100%);
    }