/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --primary: #0B2B26;
      --accent: #E85D04;
      --bg: #F5F3EF;
      --card-bg: #FFFFFF;
      --border-light: #E8E5DF;
      --text-main: #1A1A1A;
      --text-soft: #4A4A4A;
      --shadow-sm: 0 2px 12px rgba(0,0,0,0.04);
      --shadow-hover: 0 8px 24px rgba(0,0,0,0.08);
      --radius-card: 12px;
      --radius-btn: 8px;
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Inter', sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    .container-main {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 导航栏 */
    .nav-blur {
      background: rgba(245, 243, 239, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0,0,0,0.04);
      height: 64px;
    }
    .nav-link {
      font-size: 0.875rem;
      font-weight: 500;
      color: var(--text-main);
      transition: color 0.2s, border-bottom 0.2s;
      border-bottom: 2px solid transparent;
      padding-bottom: 4px;
    }
    .nav-link:hover {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }
    .btn-primary {
      background-color: var(--accent);
      color: white;
      border-radius: var(--radius-btn);
      padding: 10px 22px;
      font-weight: 600;
      transition: background 0.2s, transform 0.15s;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 2px 8px rgba(232,93,4,0.15);
    }
    .btn-primary:hover {
      background-color: #D14D00;
      transform: scale(1.02);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
      border-radius: var(--radius-btn);
      padding: 10px 22px;
      font-weight: 600;
      transition: all 0.2s;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
    }
    .btn-outline:hover {
      background-color: rgba(11,43,38,0.05);
    }
    /* 卡片样式 */
    .card {
      background: var(--card-bg);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent);
    }
    /* 数字跳动模拟 */
    @keyframes countPulse {
      0% { opacity: 0.6; transform: scale(0.95); }
      100% { opacity: 1; transform: scale(1); }
    }
    .animate-count {
      animation: countPulse 0.4s ease-out;
    }
    /* FAQ动画 */
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-in-out;
    }
    .faq-item.open .faq-content {
      max-height: 200px;
    }
    .faq-arrow {
      transition: transform 0.2s ease;
    }
    .faq-item.open .faq-arrow {
      transform: rotate(90deg);
    }
    /* Hero右半屏背景 */
    .hero-visual {
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      min-height: 500px;
    }
    .hero-visual::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(11,43,38,0.65) 0%, rgba(11,43,38,0.3) 100%);
    }
    /* 移动端汉堡菜单 */
    .mobile-menu {
      display: none;
      flex-direction: column;
      background: rgba(245,243,239,0.98);
      backdrop-filter: blur(20px);
      position: absolute;
      top: 64px;
      left: 0;
      width: 100%;
      padding: 20px;
      box-shadow: 0 8px 20px rgba(0,0,0,0.05);
      z-index: 50;
    }
    @media (max-width: 768px) {
      .mobile-menu {
        display: flex;
      }
      .desktop-nav-links {
        display: none;
      }
      .hero-visual {
        min-height: 280px;
      }
      .grid-services {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .indicators-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 520px) {
      .indicators-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }