/* roulang page: index */
:root {
      --primary-dark: #0F172A;
      --secondary-dark: #0B1120;
      --accent-gold: #D4AF37;
      --accent-cyan: #0EA5E9;
      --text-main: #334155;
      --text-muted: #64748B;
      --bg-light: #F8FAFC;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      margin: 0;
      padding: 0;
    }
    .gold-gradient-text {
      background: linear-gradient(135deg, #D4AF37 0%, #AA7C11 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .gold-gradient-bg {
      background: linear-gradient(135deg, #D4AF37 0%, #AA7C11 100%);
    }
    .custom-card-shadow {
      box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.02);
    }
    .custom-hover-lift {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-hover-lift:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    }
    /* 移动端抽屉过渡 */
    #mobile-drawer {
      transition: transform 0.3s ease-in-out;
    }
    #mobile-drawer.open {
      transform: translateX(0);
    }