/* roulang page: index */
:root {
      --primary: #0A4D5C;
      --primary-dark: #062329;
      --primary-light: #0F5B66;
      --accent: #00A896;
      --amber: #F4A261;
      --bg-surface: #F8FAFB;
      --text-main: #1F2937;
      --text-muted: #4B5563;
      --border-clinical: #E2E8F0;
      --shadow-clinical: 0 4px 20px -2px rgba(10, 77, 92, 0.06);
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    }
    body {
      color: var(--text-main);
      background-color: #FFFFFF;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(6, 35, 41, 0.94) 0%, rgba(10, 77, 92, 0.88) 100%), url('/assets/images/33289ea198c0cf13.webp') center/cover no-repeat;
    }
    .dark-section-bg {
      background: radial-gradient(circle at top right, #0F5B66 0%, #062329 80%);
    }
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 28px -4px rgba(10, 77, 92, 0.12);
      border-color: #00A896;
    }
    details > summary {
      list-style: none;
    }
    details > summary::-webkit-details-marker {
      display: none;
    }