/* roulang page: index */
:root {
      --primary: #059669;
      --primary-light: #10b981;
      --accent: #34d399;
      --text-main: #0f172a;
      --text-muted: #475569;
      --bg-light: #f8fafc;
      --border-color: #e2e8f0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: #ffffff;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
    }
    .hover-lift {
      transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .hover-lift:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -4px rgba(15, 23, 42, 0.08), 0 6px 12px -2px rgba(15, 23, 42, 0.04);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(16, 185, 129, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
    }