/* roulang page: index */
:root {
      --primary: #0f172a;
      --primary-light: #1e293b;
      --accent: #0284c7;
      --accent-glow: #0ea5e9;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-track {
      background: #f1f5f9;
      border-radius: 4px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 4px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb:hover {
      background: #94a3b8;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 50%, rgba(14, 165, 233, 0.15) 0%, rgba(15, 23, 42, 0) 70%);
    }