/* roulang page: index */
:root {
      --primary: #10b981;
      --primary-dark: #059669;
      --accent: #f97316;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
    }
    .custom-gradient-hero {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(6, 78, 59, 0.88) 100%), url('/assets/images/3af85d10fc36aa44.jpg') center/cover no-repeat;
    }
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover-effect:hover {
      transform: translateY(-6px);
      box-shadow: 0 12px 24px -10px rgba(16, 185, 129, 0.25);
    }
    .accordion-content {
      transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
      max-height: 0;
      opacity: 0;
      overflow: hidden;
    }
    .accordion-content.active {
      opacity: 1;
    }