/* roulang page: index */
:root {
      --color-brand: #10B981;
      --color-brand-dark: #059669;
      --color-accent: #F97316;
      --color-dark: #0F172A;
      --color-dark-surface: #1E293B;
      --color-light-bg: #F8FAFC;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .hero-bg-gradient {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(30, 41, 59, 0.90) 100%);
    }
    .custom-scrollbar::-webkit-scrollbar {
      width: 5px;
      height: 5px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 9999px;
    }