/* roulang page: index */
:root {
      --primary: #0F4C81;
      --primary-light: #2563EB;
      --accent: #059669;
      --dark-card: #0c1c30;
      --border-soft: #E2E8F0;
      --text-main: #0F172A;
      --text-muted: #64748B;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    .shadow-soft {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
    }
    .shadow-hover:hover {
      box-shadow: 0 20px 25px -5px rgba(15, 76, 129, 0.12), 0 8px 10px -6px rgba(15, 76, 129, 0.08);
      transform: translateY(-3px);
    }
    .bg-grid-pattern {
      background-image: radial-gradient(rgba(15, 76, 129, 0.08) 1px, transparent 1px);
      background-size: 24px 24px;
    }
    .code-font {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    }