/* roulang page: index */
:root {
      --primary: #0F172A;
      --secondary: #1E293B;
      --accent: #0EA5E9;
      --accent-green: #10B981;
      --bg-light: #F8FAFC;
      --text-main: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: var(--bg-light);
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-scrollbar::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 4px;
    }
    .hero-mask {
      background: linear-gradient(180deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.96) 100%);
    }
    .terminal-glow {
      box-shadow: 0 20px 45px -15px rgba(14, 165, 233, 0.25);
    }