/* roulang page: index */
:root {
      --brand-primary: #0052D9;
      --brand-cyan: #00A3C4;
      --bg-light: #F8FAFC;
      --text-dark: #1E293B;
      --text-muted: #64748B;
    }
    body {
      color: #1E293B;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .hero-bg {
      background: linear-gradient(180deg, rgba(248, 250, 252, 0.94) 0%, rgba(248, 250, 252, 0.98) 100%), url('/assets/images/798c8f94caf6a450.png') center/cover no-repeat;
    }
    .dark-matrix-bg {
      background: radial-gradient(circle at 80% 20%, rgba(0, 163, 196, 0.15) 0%, transparent 50%), linear-gradient(180deg, #0F172A 0%, #090D16 100%);
    }
    .custom-card {
      transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .custom-card:hover {
      transform: translateY(-4px);
    }