/* roulang page: index */
:root {
      --primary-orange: #FF5E1E;
      --accent-green: #0FA958;
      --tech-blue: #2563EB;
      --dark-slate: #0F172A;
      --card-bg: #FFFFFF;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: #F8FAFC;
      color: #1E293B;
      overflow-x: hidden;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 9999px;
    }
    .hero-mask {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(30, 41, 59, 0.88) 100%);
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
    }