/* roulang page: index */
/* 全局设计令牌与自定义增强 */
    :root {
      --primary: #0A7E5F;
      --primary-dark: #064E3A;
      --accent: #D4AF37;
      --accent-light: #F5E7C8;
      --bg-warm: #FAFAF8;
      --bg-light-green: #F0F8F5;
      --card-white: #FFFFFF;
      --text-heading: #1A202C;
      --text-body: #2D3748;
      --text-muted: #718096;
      --border-light: rgba(0,0,0,0.05);
      --shadow-card: 0 4px 20px rgba(0,0,0,0.04);
      --shadow-card-hover: 0 12px 32px rgba(0,0,0,0.08);
      --shadow-cta: 0 8px 24px rgba(10,126,95,0.25);
      --radius-card: 20px;
      --radius-btn: 12px;
      --radius-input: 8px;
      --radius-badge: 50px;
    }
    
    body {
      font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      background-color: var(--bg-warm);
      color: var(--text-body);
      line-height: 1.6;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }
    
    /* 自定义滚动条 */
    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: #f1f1f1; }
    ::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 10px; }
    
    /* 导航磨砂玻璃效果 */
    .glass-nav {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      transition: box-shadow 0.3s ease;
    }
    .glass-nav.scrolled {
      box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    }
    
    /* 移动端全屏菜单动画 */
    .mobile-menu-enter {
      animation: fadeInUp 0.3s ease forwards;
      opacity: 0;
    }
    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    
    /* 卡片悬停效果 */
    .card-hover {
      transition: all 0.3s ease;
      box-shadow: var(--shadow-card);
    }
    .card-hover:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
    }
    
    /* 按钮辉光 */
    .btn-glow {
      box-shadow: var(--shadow-cta);
    }
    .btn-gold {
      background-color: var(--accent);
      color: #1A202C;
      font-weight: 700;
      transition: all 0.3s ease;
    }
    .btn-gold:hover {
      background-color: #c99f2e;
      box-shadow: 0 10px 28px rgba(212,175,55,0.4);
    }
    
    /* 手风琴动画 */
    .faq-answer {
      transition: max-height 0.3s ease, opacity 0.2s ease;
      max-height: 0;
      overflow: hidden;
      opacity: 0;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      opacity: 1;
    }
    .faq-icon {
      transition: transform 0.2s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    
    /* 数据徽章数字 */
    .stat-number {
      color: var(--accent);
      font-weight: 800;
    }
    
    /* 响应式调整 */
    @media (max-width: 768px) {
      .hero-title {
        font-size: 2rem;
        line-height: 1.3;
      }
    }