/* roulang page: index */
:root {
      --primary: #0F172A;
      --secondary: #1E293B;
      --accent: #00D59D;
      --neon: #0284C7;
      --bg-light: #F8FAFC;
      --bg-subtle: #F1F5F9;
      --text-main: #0F172A;
      --text-body: #475569;
      --text-muted: #94A3B8;
      --border-color: #E2E8F0;
    }
    body {
      color: var(--text-body);
      background-color: #FFFFFF;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      letter-spacing: 0.01em;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(0, 213, 157, 0.15) 0%, rgba(15, 23, 42, 0.95) 75%), #0F172A;
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background-color: #cbd5e1;
      border-radius: 9999px;
    }
    .tech-border-glow:hover {
      box-shadow: 0 0 25px -5px rgba(0, 213, 157, 0.3);
      border-color: rgba(0, 213, 157, 0.5);
    }