/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-dark: #1E3A8A;
      --accent: #059669;
      --accent-light: #10B981;
      --cta: #F97316;
      --bg-page: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    
    .glass-nav {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
    }
    
    .hero-badge-glow {
      box-shadow: 0 0 25px rgba(15, 82, 186, 0.25);
    }
    
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(15, 82, 186, 0.08), 0 10px 10px -5px rgba(15, 82, 186, 0.04);
    }
    
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
    }
    .accordion-item.active .accordion-content {
      max-height: 280px;
    }
    .accordion-item.active .accordion-arrow {
      transform: rotate(180deg);
    }
    
    .custom-scroll::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 4px;
    }