/* roulang page: index */
:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --accent: #10b981;
      --text-main: #0f172a;
      --text-muted: #475569;
      --bg-light: #f8fafc;
      --border-color: #e2e8f0;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    }
    body {
      color: var(--text-main);
      background-color: #ffffff;
      overflow-x: hidden;
    }
    .custom-scrollbar::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 4px;
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .hero-stage-shadow {
      box-shadow: 0 25px 60px -15px rgba(37, 99, 235, 0.18), 0 10px 25px -5px rgba(15, 23, 42, 0.08);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(37, 99, 235, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
    }
    .badge-soft {
      background: rgba(37, 99, 235, 0.08);
      color: #2563eb;
      border: 1px solid rgba(37, 99, 235, 0.2);
    }
    .grid-pattern {
      background-image: radial-gradient(rgba(226, 232, 240, 0.6) 1px, transparent 1px);
      background-size: 24px 24px;
    }