/* roulang page: index */
:root {
      --primary: #0EA5E9;
      --primary-dark: #0284C7;
      --accent: #F59E0B;
      --bg-dark: #0B1120;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-subtle: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .badge-glow {
      box-shadow: 0 0 15px rgba(14, 165, 233, 0.4);
    }
    .hero-bg {
      background-image: linear-gradient(to right, rgba(11, 17, 32, 0.95), rgba(15, 23, 42, 0.85)), url('/assets/images/c205e14ea66928e1.png');
      background-size: cover;
      background-position: center;
    }
    .arch-bg {
      background-image: radial-gradient(circle at 50% 50%, rgba(30, 41, 59, 0.6) 0%, rgba(11, 17, 32, 0.95) 100%), url('/assets/images/42c9e94f26d986ab.webp');
      background-size: cover;
      background-position: center;
    }