/* roulang page: index */
:root {
      --primary: #0E7490;
      --secondary: #D97706;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-light);
      color: #334155;
      font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    }
    .hero-gradient {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(14, 116, 144, 0.82) 100%);
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 4px;
    }