/* roulang page: index */
@layer base {
      body {
        font-family: 'Noto Sans SC', system-ui, sans-serif;
        color: #2C2C2C;
        background-color: #FAFAF5;
        margin: 0;
        -webkit-font-smoothing: antialiased;
      }
      .font-serif {
        font-family: 'Noto Serif SC', serif;
      }
      .font-mono-numbers {
        font-family: 'Inter', 'DIN', monospace;
        font-weight: 700;
      }
      .container-custom {
        max-width: 1280px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
      }
      @media (min-width: 768px) {
        .container-custom {
          padding-left: 2rem;
          padding-right: 2rem;
        }
      }
      .section-space {
        padding-top: 5rem;
        padding-bottom: 5rem;
      }
      @media (max-width: 767px) {
        .section-space {
          padding-top: 3rem;
          padding-bottom: 3rem;
        }
      }
      .text-balance {
        text-wrap: balance;
      }
    }

    /* 导航与移动菜单 */
    .nav-blur {
      background-color: rgba(255,255,255,0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 1px 0 rgba(0,0,0,0.05);
    }
    .nav-link {
      color: #5A5A5A;
      font-weight: 500;
      font-size: 0.95rem;
      transition: color 0.2s, background 0.2s;
      position: relative;
      padding: 0.5rem 0.25rem;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 0;
      width: 0%;
      height: 2px;
      background-color: #8B1E1E;
      transition: width 0.25s ease;
    }
    .nav-link:hover {
      color: #8B1E1E;
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .mobile-menu {
      display: none;
    }
    @media (max-width: 767px) {
      .desktop-nav {
        display: none;
      }
      .mobile-menu {
        display: block;
      }
      #mobileNavPanel {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        flex-direction: column;
        padding: 1.5rem;
        z-index: 50;
      }
      #mobileNavPanel.active {
        display: flex;
      }
    }

    /* 数字滚动动画 */
    .counter {
      font-variant-numeric: tabular-nums;
    }

    /* 手风琴样式 */
    .faq-item {
      border-bottom: 1px solid #E0D6CC;
    }
    .faq-question {
      background-color: #FAFAF5;
      transition: background 0.2s;
      cursor: pointer;
    }
    .faq-item.active .faq-question {
      background-color: #FFFFFF;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.4s ease;
      padding: 0 1rem;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 1rem;
    }
    .faq-icon {
      transition: transform 0.3s ease;
      stroke: #8B1E1E;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }

    /* 表单焦点 */
    input:focus {
      border-color: #8B1E1E;
      box-shadow: 0 0 0 3px rgba(139,30,30,0.1);
      outline: none;
    }

    /* 卡片悬浮 */
    .card-hover {
      transition: transform 0.25s ease, box-shadow 0.3s ease;
    }
    .card-hover:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 30px rgba(0,0,0,0.08);
    }
    
    /* 背景图层 */
    .hero-bg {
      background-image: linear-gradient(rgba(0,0,0,0.55), rgba(0,0,0,0.65)), url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
    }
    .stats-bg {
      background-color: #F2EDE4;
    }