/* roulang page: index */
:root {
      --primary: #0F5B78;
      --primary-dark: #073243;
      --secondary: #10B981;
      --dark-navy: #081F2C;
      --surface: #FFFFFF;
      --surface-subtle: #F8FAFC;
      --border-color: #E2E8F0;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: #1E293B;
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .shadow-med {
      box-shadow: 0 4px 24px -2px rgba(15, 91, 120, 0.08);
    }
    .shadow-card-hover:hover {
      box-shadow: 0 16px 32px -4px rgba(15, 91, 120, 0.12);
      transform: translateY(-3px);
    }
    .tab-active {
      border-color: #0F5B78;
      color: #0F5B78;
      font-weight: 600;
    }
    .faq-content {
      transition: max-height 0.3s ease-in-out, opacity 0.3s ease;
    }
    .banner-slide {
      display: none;
      opacity: 0;
      transition: opacity 0.6s ease-in-out;
    }
    .banner-slide.active {
      display: block;
      opacity: 1;
    }