/* roulang page: index */
:root {
      --primary: #1E3A8A;
      --accent: #F97316;
      --dark: #0F172A;
      --light: #F8FAFC;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: #F8FAFC;
      color: #334155;
      line-height: 1.75;
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 58, 138, 0.88) 100%), url('/assets/images/3b2295eb11a24ec5.webp') center/cover no-repeat;
    }
    .cta-banner-bg {
      background: linear-gradient(135deg, rgba(30, 58, 138, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%), url('/assets/images/43d9a9035394323a.webp') center/cover no-repeat;
    }