/* roulang page: index */
:root {
      --primary: #1E40AF;
      --primary-hover: #1D4ED8;
      --primary-light: #EFF6FF;
      --accent: #06B6D4;
      --success: #10B981;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
    }
    
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
    }
    
    /* 玻璃拟态与阴影 */
    .glass-nav {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    
    .card-shadow {
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-shadow:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    }

    .hero-gradient {
      background: linear-gradient(180deg, #F0F7FF 0%, #FFFFFF 100%);
    }

    /* 手风琴动效 */
    .accordion-content {
      transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
      max-height: 0;
      opacity: 0;
      overflow: hidden;
    }
    .accordion-item.active .accordion-content {
      max-height: 300px;
      opacity: 1;
    }
    .accordion-item.active .accordion-icon {
      transform: rotate(180deg);
    }

    /* 徽章微动效 */
    .pulse-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #10B981;
      box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
      animation: pulse-ring 2s infinite;
    }
    @keyframes pulse-ring {
      0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
      100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }