/* roulang page: index */
:root {
      --primary: #0F52BA;
      --secondary: #00D287;
      --dark-base: #0B132B;
      --surface-light: #F4F7FB;
      --border-color: rgba(226, 232, 240, 0.9);
      --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    body {
      font-family: var(--font-stack);
      background-color: var(--surface-light);
      color: #334155;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(11, 19, 43, 0.92) 0%, rgba(15, 82, 186, 0.88) 100%), url('/assets/images/974bff0ac62a7365.webp') center/cover no-repeat;
    }
    .section-dark-bg {
      background: linear-gradient(180deg, #0B132B 0%, #111e42 100%);
    }
    .custom-scroll-hide::-webkit-scrollbar {
      display: none;
    }
    .custom-scroll-hide {
      -ms-overflow-style: none;
      scrollbar-width: none;
    }
    details summary::-webkit-details-marker {
      display: none;
    }