/* roulang page: index */
:root {
      --brand-primary: #0E7490;
      --brand-dark: #0F172A;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #F8FAFC;
    }
    .hero-bg {
      background-image: linear-gradient(to right, rgba(248, 250, 252, 0.96) 20%, rgba(248, 250, 252, 0.82) 100%), url('/assets/images/2f6cc8db79861721.webp');
      background-size: cover;
      background-position: center;
    }
    .dark-section-bg {
      background-image: linear-gradient(rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.97)), url('/assets/images/7106579153dd3588.jpg');
      background-size: cover;
      background-position: center;
    }
    .scroll-mt-header {
      scroll-margin-top: 90px;
    }