/* roulang page: index */
:root {
      --primary: #1e40af;
      --primary-dark: #1e3a8a;
      --accent-amber: #f59e0b;
      --accent-red: #dc2626;
      --bg-light: #f8fafc;
      --surface-white: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      -webkit-font-smoothing: antialiased;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(30, 64, 175, 0.88) 100%), url('/assets/images/cb097ca666a003de.png') center/cover no-repeat;
    }
    .dark-section-bg {
      background: radial-gradient(circle at 80% 20%, #1e3a8a 0%, #0f172a 70%);
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    /* 辅助样式 */
    .tab-active {
      background-color: #1e40af;
      color: #ffffff;
      border-color: #1e40af;
    }