/* roulang page: index */
:root {
      --primary-navy: #0F172A;
      --secondary-slate: #1E293B;
      --accent-green: #10B981;
      --accent-orange: #F97316;
      --bg-light: #F8FAFC;
      --text-dark: #334155;
      --text-muted: #64748B;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      color: var(--text-dark);
      background-color: #ffffff;
      -webkit-font-smoothing: antialiased;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 4px;
    }
    .hero-banner-bg {
      background-image: linear-gradient(to right, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.75)), url('/assets/images/aa4779e35e829f8a.png');
      background-size: cover;
      background-position: center;
    }