:root {
      --primary-color: #00b377; /* 绿色作为点缀 */
      --dark-bg: #f8f9fa;
      --darker-bg: #e9ecef;
      --card-bg: #ffffff;
      --light-text: #212529;
      --muted-text: #6c757d;
      --border-color: #dee2e6;
    }
    
    body {
      font-family: "Segoe UI", Arial, sans-serif;
      background-color: var(--dark-bg);
      color: var(--light-text);
      overflow-x: hidden;
    }

    /* 导航栏 */
    .navbar {
      background-color: rgba(255, 255, 255, 0.95);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
      padding: 15px 0;
    }
    
    .navbar.scrolled {
      background-color: rgba(255, 255, 255, 0.98);
      padding: 10px 0;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }
    
    .navbar-brand {
      color: var(--light-text) !important;
      font-weight: bold;
      font-size: 1.5rem;
      display: flex;
      align-items: center;
    }
    
    .navbar-brand i {
      margin-right: 8px;
      color: var(--primary-color);
    }
    
    .nav-link {
      color: var(--muted-text) !important;
      margin: 0 8px;
      transition: color 0.3s;
      font-weight: 500;
      position: relative;
    }
    
    .nav-link:hover {
      color: var(--primary-color) !important;
    }
    
    .nav-link::after {
      content: '';
      position: absolute;
      width: 0;
      height: 2px;
      bottom: 0;
      left: 0;
      background-color: var(--primary-color);
      transition: width 0.3s;
    }
    
    .nav-link:hover::after {
      width: 100%;
    }

    /* 英雄区域 */
    .hero {
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)),
                  url('images/Sic.jpg') center/cover no-repeat;
      color: #fff;
      text-align: center;
      padding: 180px 20px;
      position: relative;
      overflow: hidden;
    }
    
    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at center, transparent 0%, rgba(0, 179, 119, 0.1) 100%);
      z-index: 1;
    }
    
    .hero-content {
      position: relative;
      z-index: 2;
    }
    
    .hero h1 {
      font-size: 3.5rem;
      font-weight: 700;
      margin-bottom: 20px;
      color: #fff;
      text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    }
    
    .hero-highlight {
      color: var(--primary-color);
      position: relative;
      display: inline-block;
    }
    
    .hero-highlight::after {
      content: '';
      position: absolute;
      bottom: 5px;
      left: 0;
      width: 100%;
      height: 8px;
      background-color: rgba(0, 179, 119, 0.3);
      z-index: -1;
    }
    
    .hero p {
      color: #ccc;
      max-width: 700px;
      margin: 20px auto 30px;
      font-size: 1.2rem;
      line-height: 1.6;
    }
    
    .btn-primary-custom {
      background-color: var(--primary-color);
      border: none;
      color: #fff;
      padding: 12px 30px;
      border-radius: 30px;
      font-weight: 600;
      transition: all 0.3s ease;
      box-shadow: 0 4px 15px rgba(0, 179, 119, 0.3);
    }
    
    .btn-primary-custom:hover {
      background-color: #009966;
      transform: translateY(-3px);
      box-shadow: 0 6px 20px rgba(0, 179, 119, 0.4);
    }
    
    .btn-outline-custom {
      background-color: transparent;
      border: 2px solid var(--primary-color);
      color: var(--primary-color);
      padding: 10px 28px;
      border-radius: 30px;
      font-weight: 600;
      transition: all 0.3s ease;
    }
    
    .btn-outline-custom:hover {
      background-color: var(--primary-color);
      color: #fff;
      transform: translateY(-3px);
    }

    section {
      padding: 100px 0;
    }
    
    .section-title {
      color: var(--light-text);
      font-weight: 700;
      margin-bottom: 15px;
      text-align: center;
      position: relative;
    }
    
    .section-title::after {
      content: '';
      display: block;
      width: 80px;
      height: 3px;
      background-color: var(--primary-color);
      margin: 15px auto 30px;
    }
    
    .section-subtitle {
      color: var(--muted-text);
      text-align: center;
      max-width: 700px;
      margin: 0 auto 60px;
      font-size: 1.1rem;
      line-height: 1.6;
    }

    /* 工厂图片布局 */
    .factory-img {
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.5s ease, box-shadow 0.5s ease;
      overflow: hidden;
    }
    
    .factory-img img {
      transition: transform 0.5s ease;
    }
    
    .factory-img:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    }
    
    .factory-img:hover img {
      transform: scale(1.05);
    }
.factory-img-wall img {
  width: 100%;
  height: 220px; /* 统一高度，可根据需要调整 */
  object-fit: cover; /* 自动裁剪图片以填满容器 */
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

    /* 产品卡片 */
    .product-card {
      background-color: var(--card-bg);
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      height: 100%;
      border: 1px solid var(--border-color);
    }
    
    .product-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0, 179, 119, 0.1);
    }
    
    .product-img {
      height: 600px;
      overflow: hidden;
    }
    
    .product-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    
    .product-card:hover .product-img img {
      transform: scale(1.1);
    }
    
    .product-content {
      padding: 25px;
    }
    
    .product-title {
      color: var(--primary-color);
      font-weight: 700;
      margin-bottom: 15px;
    }
    
    .product-features {
      list-style: none;
      padding: 0;
      margin: 20px 0;
    }
    
    .product-features li {
      margin-bottom: 8px;
      color: var(--muted-text);
      position: relative;
      padding-left: 25px;
    }
    
    .product-features li::before {
      content: '✓';
      color: var(--primary-color);
      position: absolute;
      left: 0;
      font-weight: bold;
    }

    /* 规格表 */
    .specs-table {
      background-color: var(--card-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
      border: 1px solid var(--border-color);
    }
    
    .specs-table th {
      background-color: var(--primary-color);
      color: #fff;
      text-align: center;
      padding: 15px;
      font-weight: 600;
    }
    
    .specs-table td {
      padding: 15px;
      text-align: center;
      border-bottom: 1px solid var(--border-color);
    }
    
    .specs-table tr:last-child td {
      border-bottom: none;
    }

    /* 应用卡片 - 图片加描述 */
    .app-card {
      background-color: var(--card-bg);
      border-radius: 15px;
      overflow: hidden;
      transition: transform 0.3s, box-shadow 0.3s;
      border: 1px solid var(--border-color);
      height: 100%;
    }
    
    .app-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0, 179, 119, 0.1);
    }
    
    .app-img {
      height: 200px;
      overflow: hidden;
    }
    
    .app-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    
    .app-card:hover .app-img img {
      transform: scale(1.1);
    }
    
    .app-content {
      padding: 25px;
    }
    
    .app-title {
      color: var(--primary-color);
      font-weight: 700;
      margin-bottom: 15px;
    }

    /* 为什么选择我们 */
    .feature-box {
      text-align: center;
      padding: 30px 20px;
      border-radius: 10px;
      transition: all 0.3s ease;
      height: 100%;
      border: 1px solid var(--border-color);
      background-color: var(--card-bg);
    }
    
    .feature-box:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    }
    
    .feature-icon {
      width: 70px;
      height: 70px;
      background: linear-gradient(135deg, var(--primary-color), #009966);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      color: #fff;
      font-size: 28px;
    }
    
    .feature-title {
      color: var(--primary-color);
      font-weight: 700;
      margin-bottom: 15px;
    }

    /* 联系表单 */
    .contact-form {
      background-color: var(--card-bg);
      border-radius: 15px;
      padding: 40px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
      border: 1px solid var(--border-color);
    }
    
    .form-control {
      background-color: #fff;
      border: 1px solid var(--border-color);
      color: var(--light-text);
      padding: 12px 15px;
      border-radius: 8px;
    }
    
    .form-control:focus {
      background-color: #fff;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 0.2rem rgba(0, 179, 119, 0.25);
      color: var(--light-text);
    }
    
    .form-label {
      color: var(--light-text);
      font-weight: 500;
      margin-bottom: 8px;
    }

    /* 页脚 */
    footer {
      background-color: #343a40;
      color: #adb5bd;
      padding: 60px 0 30px;
      border-top: 1px solid rgba(15, 81, 50, 0.3);
    }
    
    .footer-links h5 {
      color: var(--primary-color);
      margin-bottom: 20px;
      font-weight: 600;
    }
    
    .footer-links ul {
      list-style: none;
      padding: 0;
    }
    
    .footer-links li {
      margin-bottom: 10px;
    }
    
    .footer-links a {
      color: #adb5bd;
      text-decoration: none;
      transition: color 0.3s;
    }
    
    .footer-links a:hover {
      color: var(--primary-color);
    }
    
    .social-icons a {
      display: inline-block;
      width: 40px;
      height: 40px;
      background-color: rgba(255, 255, 255, 0.1);
      border-radius: 50%;
      text-align: center;
      line-height: 40px;
      margin-right: 10px;
      color: #adb5bd;
      transition: all 0.3s;
    }
    
    .social-icons a:hover {
      background-color: var(--primary-color);
      color: #fff;
      transform: translateY(-3px);
    }
    
    .copyright {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 20px;
      margin-top: 40px;
      text-align: center;
    }

    /* 响应式调整 */
    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2.5rem;
      }
      
      .hero p {
        font-size: 1rem;
      }
      
      section {
        padding: 70px 0;
      }
    }