/* roulang page: index */
:root {
      --primary: #1D4ED8;
      --primary-hover: #1E40AF;
      --accent-green: #059669;
      --accent-orange: #EA580C;
      --bg-white: #FFFFFF;
      --bg-slate: #F8FAFC;
      --navy-dark: #0F172A;
      --text-main: #0F172A;
      --text-muted: #475569;
    }
    html {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
    }
    .hero-bg {
      background-image: linear-gradient(to right, rgba(15, 23, 42, 0.88), rgba(29, 78, 216, 0.72)), url('/assets/images/0a9ba3677dc159c4.jpg');
      background-size: cover;
      background-position: center;
    }
    .cta-banner-bg {
      background-image: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 50%, #2563eb 100%);
    }
    .nav-transition {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }