* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
  }
a {
    text-decoration: none;
    color: #333;
}

a:hover {
    color: #124fcc;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    /*display: block;*/
}
.page-section {
    max-width: 1300px;
    margin: 0 auto;
    padding: 50px 20px;
  }
  
  .section-header {
    text-align: center;
    margin-bottom: 40px;
  }
  
  .section-title {
    font-size: 28px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
  }
  
  .section-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 0 auto 15px;
    border-radius: 2px;
  }
  
  .section-desc {
    font-size: 15px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
  }
  
  .category-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 35px;
  }
  
  .category-tabs a {
    display: inline-block;
    padding: 8px 22px;
    color: #555;
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
  }
  
  .category-tabs a:hover {
    border-color: #4a90e2;
    color: #4a90e2;
    background: #f0f6ff;
  }
  
  .category-tabs li.active a {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-color: transparent;
  }
  
  .product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  
  .product-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
  }
  
  .product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
  }
  
  .product-thumb {
    position: relative;
    width: 100%;
    padding-top: 75%;
    overflow: hidden;
    background: #f5f7fa;
  }
  
  .product-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }
  
  .product-card:hover .product-thumb img {
    transform: scale(1.08);
  }
  
  .product-info {
    padding: 16px;
  }
  
  .product-title {
    font-size: 15px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .product-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .product-title a:hover {
    color: #4a90e2;
  }
  
  .product-meta {
    font-size: 12px;
    color: #999;
  }
  
   .news-section {
    background: #fff;
    padding: 50px 20px;
  }
  
  .news-section .page-section {
    padding: 0;
  }
  
  .news-layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 35px;
  }
  
  .section-subtitle {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 2px solid #e8ecf1;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .section-subtitle a {
    font-size: 14px;
    color: #4a90e2;
    text-decoration: none;
    font-weight: 400;
  }
  
  .section-subtitle a:hover {
    text-decoration: underline;
  }
  
  .news-featured {
    background: #f9fafb;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
  }
  
  .news-featured:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  }
  
  .news-featured-image {
    width: 100%;
    height: 360px;
    object-fit: cover;
  }
  
  .news-featured-content {
    padding: 25px;
  }
  
  .news-featured-title {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
    line-height: 1.4;
  }
  
  .news-featured-title a {
    color: inherit;
    text-decoration: none;
  }
  
  .news-featured-title a:hover {
    color: #4a90e2;
  }
  
  .news-featured-excerpt {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
  }
  
  .news-list {
    list-style: none;
  }
  
  .news-list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px dashed #e8e8e8;
  }
  
  .news-list-item:last-child {
    border-bottom: none;
  }
  
  .news-index {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: #f0f6ff;
    color: #4a90e2;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
  }
  
  .news-list-item:nth-child(1) .news-index {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
  }
  
  .news-list-item:nth-child(2) .news-index {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
  }
  
  .news-list-item:nth-child(3) .news-index {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: #fff;
  }
  
  .news-list-title {
    flex: 1;
    font-size: 14px;
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  .news-list-title:hover {
    color: #4a90e2;
  }
  
  .news-list-date {
    font-size: 12px;
    color: #999;
    flex-shrink: 0;
  }
  
  .banner-image {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    margin-top: 30px;
  }
  
  .banner-image img {
    width: 100%;
    height: auto;
    display: block;
  }
  
  .section-header {
    text-align: center;
    margin-bottom: 40px;
  }
  
  .section-title {
    font-size: 28px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
  }
  
  .section-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 0 auto 15px;
    border-radius: 2px;
  }
  
  .section-desc {
    font-size: 15px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
  }
  
  @media (max-width: 1024px) {
    .news-layout {
      grid-template-columns: 1fr;
      gap: 30px;
    }
    
    .page-section {
      padding: 35px 15px;
    }
    
    .news-section {
      padding: 35px 15px;
    }
  }
  
  @media (max-width: 768px) {
    .page-section {
      padding: 25px 15px;
    }
    
    .news-section {
      padding: 25px 15px;
    }
    
    .section-title {
      font-size: 24px;
    }
    
    .section-subtitle {
      font-size: 18px;
      margin-bottom: 20px;
    }
    
    .news-featured-image {
      height: 240px;
    }
    
    .news-featured-content {
      padding: 20px;
    }
    
    .news-featured-title {
      font-size: 18px;
    }
  }
  
   @media (max-width: 480px) {
    .page-section {
      padding: 20px 12px;
    }
    
    .news-section {
      padding: 20px 12px;
    }
    
    .section-title {
      font-size: 20px;
    }
    
    .section-desc {
      font-size: 13px;
    }
    
    .section-subtitle {
      font-size: 16px;
      margin-bottom: 15px;
    }
    
    .news-featured-image {
      height: 180px;
    }
    
    .news-featured-content {
      padding: 15px;
    }
    
    .news-featured-title {
      font-size: 16px;
    }
    
    .news-featured-excerpt {
      font-size: 13px;
      line-height: 1.6;
    }
    
    .news-list-item {
      flex-wrap: wrap;
      gap: 6px 10px;
      padding: 10px 0;
    }
    
    .news-index {
      width: 24px;
      height: 24px;
      font-size: 12px;
    }
    
    .news-list-title {
      flex: 1;
      min-width: 0;
      font-size: 14px;
      white-space: normal;
      overflow: visible;
      text-overflow: clip;
    }
    
    .news-list-date {
      width: 100%;
      font-size: 11px;
      text-align: right;
      margin-top: -4px;
    }
    
    .banner-image {
      margin-top: 20px;
    }
  }
  
  .banner-image {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    margin-top: 30px;
  }
  
  .banner-image img {
    width: 100%;
    height: auto;
    display: block;
  }
  
  .hot-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
  }
  
  .hot-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
  }
  
  .hot-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
  }
  
  .hot-thumb {
    position: relative;
    width: 100%;
    padding-top: 60%;
    overflow: hidden;
  }
  
  .hot-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }
  
  .hot-card:hover .hot-thumb img {
    transform: scale(1.05);
  }
  
  .hot-content {
    padding: 20px;
  }
  
  .hot-title {
    font-size: 17px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
    line-height: 1.4;
  }
  
  .hot-excerpt {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .hot-link {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    font-size: 13px;
    transition: all 0.3s ease;
  }
  
  .hot-link:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
  }
  
  .service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  
  .service-card {
    background: #fff;
    border-radius: 10px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
  }
  
  .service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
  }
  
  .service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-size: 24px;
  }
  
  .service-title {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
    line-height: 1.4;
  }
  
  .service-desc {
    font-size: 13px;
    color: #999;
  }
  
  @media (max-width: 1200px) {
    .product-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }
  
  @media (max-width: 1024px) {
    .news-layout {
      grid-template-columns: 1fr;
    }
    
    .hot-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .service-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  @media (max-width: 1160px) {
    .nav-link {
  font-size: 14px;
}
.nav-list {
  gap: 0px;
}
  } 
    @media (max-width: 1160px) {
    .nav-link {
  font-size: 12px;
}
  } 
  @media (max-width: 768px) {
    .page-section {
      padding: 35px 15px;
    }
    
    .section-title {
      font-size: 24px;
    }
    
    .product-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 15px;
    }
    
    .hot-grid {
      grid-template-columns: 1fr;
    }
  }
  
  @media (max-width: 480px) {
    .page-section {
      padding: 25px 12px;
    }
    
    .section-title {
      font-size: 20px;
    }
    
    .product-grid {
      grid-template-columns: 1fr;
    }
    
    .service-grid {
      /*grid-template-columns: 1fr;*/
    }
  }
  .site-header {
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
  }
  
  .header-top {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 10px 0;
    font-size: 13px;
  }
  
  .header-top-inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .header-contact {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  
  .header-contact img {
    width: 16px;
    height: 16px;
  }
  
  .header-contact em {
    font-weight: 600;
    font-style: normal;
    font-size: 15px;
  }
  
  .header-features {
    display: flex;
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
  }
  
  .header-features li {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  
  .header-features img {
    width: 14px;
    height: 14px;
  }
  
  .header-main {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
  }
  
  .site-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
  }
  
  .site-logo img {
    max-height: 50px;
    width: auto;
  }
  
  .main-nav {
    display: flex;
    align-items: center;
  }
  
  .nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 5px;
  }
  
  .nav-item {
    position: relative;
  }
  
  .nav-link {
    display: block;
    padding: 10px 18px;
    color: #333;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s ease;
  }
  
  .nav-link:hover {
    color: #667eea;
    background: #f5f7ff;
  }
  
  .nav-item.dropdown:hover .dropdown-menu {
    display: block;
    animation: fadeIn 0.3s ease;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .dropdown-toggle {
    cursor: pointer;
    position: relative;
    padding-right: 28px !important;
  }
  
  .dropdown-toggle::after {
    content: '▼';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: #999;
  }
  
  .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    padding: 8px 0;
    margin-top: 8px;
    z-index: 1001;
  }
  
  .dropdown-item {
    display: block;
    padding: 10px 18px;
    color: #555;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.25s ease;
  }
  
  .dropdown-item:hover {
    background: #f5f7ff;
    color: #667eea;
    padding-left: 22px;
  }
  
  .mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
  }
  
  .hamburger-bar {
    display: block;
    width: 24px;
    height: 2px;
    background: #333;
    position: relative;
    transition: all 0.3s ease;
  }
  
  .hamburger-bar::before,
  .hamburger-bar::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: #333;
    left: 0;
    transition: all 0.3s ease;
  }
  
  .hamburger-bar::before {
    top: -7px;
  }
  
  .hamburger-bar::after {
    top: 7px;
  }
  
  .page-banner {
    width: 100%;
    overflow: hidden;
    position: relative;
  }
  
  .banner-slider {
    display: flex;
    transition: transform 0.5s ease;
  }
  
  .banner-slide {
    min-width: 100%;
    position: relative;
  }
  
  .banner-slide img {
    width: 100%;
    height: auto;
    display: block;
    max-height: 450px;
    object-fit: cover;
  }
  
  @media (max-width: 992px) {
    .header-features {
      display: none;
    }
    
    .mobile-menu-btn {
      display: block;
    }
    
    .main-nav {
      position: fixed;
      top: 0;
      right: -100%;
      width: 280px;
      height: 100vh;
      background: #fff;
      box-shadow: -2px 0 10px rgba(0,0,0,0.1);
      transition: right 0.3s ease;
      z-index: 1002;
      padding: 60px 20px 20px;
    }
    
    .main-nav.active {
      right: 0;
    }
    
    .nav-list {
      flex-direction: column;
      gap: 0;
    }
    
    .nav-link {
      padding: 14px 18px;
      border-bottom: 1px solid #f0f0f0;
    }
    
    .dropdown-menu {
      position: static;
      box-shadow: none;
      display: none;
      padding-left: 15px;
      margin-top: 0;
    }
    
    .nav-item.dropdown.active .dropdown-menu {
      display: block;
    }
  }
  
  @media (max-width: 768px) {
    .header-top-inner {
      flex-direction: column;
      gap: 8px;
      text-align: center;
    }
    
    .header-main {
      height: 60px;
    }
    
    .site-logo img {
      max-height: 40px;
    }
    
    .banner-slide img {
      max-height: 250px;
    }
  }
.about-page {
    max-width: 1300px;
    margin: 40px auto;
    padding: 0 20px;
    display: flex;
    gap: 25px;
  }
  
  .about-main {
    flex: 1;
    min-width: 0;
  }
  
  .about-content {
    background: #fff;
    border-radius: 10px;
    padding: 35px 40px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
  }
  
  .page-title {
    font-size: 26px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
    padding-left: 18px;
    position: relative;
  }
  
  .page-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: linear-gradient(180deg, #4a90e2 0%, #357abd 100%);
    border-radius: 2px;
  }
  
  .page-meta {
    display: flex;
    gap: 20px;
    color: #999;
    font-size: 13px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
  }
  
  .page-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
  }
  
  .article-content {
    font-size: 15px;
    line-height: 1.9;
    color: #444;
  }
  
  .article-content p {
    margin-bottom: 16px;
    text-align: justify;
  }
  
  .article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 20px 0;
  }
  
  .article-content h2 {
    font-size: 20px;
    color: #1a1a1a;
    margin: 28px 0 14px;
    padding-left: 12px;
    border-left: 3px solid #4a90e2;
  }
  
  .article-content h3 {
    font-size: 17px;
    color: #1a1a1a;
    margin: 24px 0 12px;
  }
  
  .article-content ul,
  .article-content ol {
    padding-left: 22px;
    margin-bottom: 16px;
  }
  
  .article-content li {
    margin-bottom: 6px;
  }
  
  .sidebar {
    width: 280px;
    flex-shrink: 0;
  }
  
  .sidebar-card {
    background: #fff;
    border-radius: 10px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
  }
  
  .sidebar-heading {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid #4a90e2;
    position: relative;
  }
  
  .sidebar-heading::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 45px;
    height: 2px;
    background: #357abd;
  }
  
  .nav-listn {
    list-style: none;
  }
  
  .nav-listn li {
    margin-bottom: 6px;
  }
  
  .nav-listn a {
    display: block;
    padding: 9px 14px;
    color: #555;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.25s ease;
    border-left: 3px solid transparent;
  }
  
  .nav-listn a:hover {
    background: #f0f6ff;
    color: #4a90e2;
    border-left-color: #4a90e2;
    padding-left: 16px;
  }
  
  .nav-listn a.active {
    background: #e8f2ff;
    color: #357abd;
    border-left-color: #357abd;
    font-weight: 500;
  }
  
  .recommend-list {
    list-style: none;
  }
  
  .recommend-list li {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px dashed #e8e8e8;
  }
  
  .recommend-list li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
  }
  
  .recommend-list a {
    color: #555;
    text-decoration: none;
    display: block;
    transition: all 0.25s ease;
    font-size: 14px;
  }
  
  .recommend-list a:hover {
    color: #4a90e2;
    padding-left: 6px;
  }
  
  @media (max-width: 900px) {
    .about-page {
      flex-direction: column;
      margin: 25px auto;
    }
    
    .sidebar {
      width: 100%;
    }
    
    .about-content {
      padding: 25px 28px;
    }
    
    .page-title {
      font-size: 22px;
    }
  }
  
  @media (max-width: 600px) {
    .about-page {
      padding: 0 12px;
      margin: 15px auto;
    }
    
    .about-content {
      padding: 20px;
    }
    
    .page-title {
      font-size: 20px;
    }
    
    .article-content {
      font-size: 14px;
    }
  }
   .search-box {
    position: relative;
    width: 100%;
  }
  
  .search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: #f5f7fa;
    border: 2px solid #e8ecf1;
    border-radius: 25px;
    overflow: hidden;
    transition: all 0.3s ease;
  }
  
  .search-input-wrapper:focus-within {
    border-color: #4a90e2;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
  }
  
  .search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px 18px;
    font-size: 14px;
    color: #333;
    outline: none;
  }
  
  .search-input::placeholder {
    color: #aaa;
  }
  
  .search-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 12px 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    border-radius: 0 23px 23px 0;
    flex-shrink: 0;
  }
  
  .search-btn:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
  }
  
  .search-input:focus + .search-btn {
    background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%);
  }
.site-footer {
    background: #2c3e50;
    color: #ecf0f1;
    margin-top: 60px;
  }
  
  .footer-main {
    max-width: 1300px;
    margin: 0 auto;
    padding: 50px 20px 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr) 1.5fr;
    gap: 35px;
  }
  
  .footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin: 0 0 18px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid #3498db;
    position: relative;
  }
  
  .footer-column h4::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 40px;
    height: 2px;
    background: #2980b9;
  }
  
  .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  
  .footer-links li {
    margin-bottom: 10px;
  }
  
  .footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-block;
  }
  
  .footer-links a:hover {
    color: #3498db;
    padding-left: 5px;
  }
  
  .footer-contact {
    grid-column: span 1;
  }
  
  .contact-phone {
    display: block;
    font-size: 22px;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
  }
  
  .contact-phone:hover {
    color: #3498db;
  }
  
  .contact-time {
    font-size: 14px;
    color: #95a5a6;
    margin-bottom: 18px;
  }
  
  .social-links {
    display: flex;
    gap: 12px;
    align-items: center;
  }
  
  .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    transition: all 0.3s ease;
    position: relative;
  }
  
  .social-link:hover {
    background: #3498db;
    transform: translateY(-3px);
  }
  
  .wechat-qr {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
  }
  
  .wechat-qr img {
    display: block;
    width: 140px;
    height: 140px;
  }
  
  .social-link:hover .wechat-qr {
    opacity: 1;
    visibility: visible;
    bottom: 55px;
  }
  
  .wechat-qr::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid #fff;
  }
  
  .footer-bottom {
    background: #1a252f;
    padding: 20px;
    text-align: center;
  }
  
  .footer-bottom-inner {
    max-width: 1300px;
    margin: 0 auto;
  }
  
  .footer-bottom p {
    margin: 6px 0;
    font-size: 13px;
    color: #95a5a6;
  }
  
  .footer-bottom a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .footer-bottom a:hover {
    color: #3498db;
  }
  
  .back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 999;
  }
  
  .back-to-top.visible {
    opacity: 1;
    visibility: visible;
  }
  
  .back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
  }
  
  @media (max-width: 1024px) {
    .footer-main {
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    
    .footer-contact {
      grid-column: span 2;
    }
  }
  
  @media (max-width: 768px) {
    .site-footer {
      margin-top: 40px;
    }
    
    .footer-main {
      grid-template-columns: 1fr;
      padding: 35px 20px 30px;
      gap: 25px;
    }
    
    .footer-contact {
      grid-column: span 1;
    }
    
    .contact-phone {
      font-size: 20px;
    }
    
    .back-to-top {
      bottom: 20px;
      right: 20px;
      width: 40px;
      height: 40px;
      font-size: 18px;
    }
  }
  
  @media (max-width: 480px) {
    .footer-main {
      padding: 25px 15px 20px;
    }
    
    .footer-column h4 {
      font-size: 15px;
      margin-bottom: 14px;
    }
    
    .footer-links li {
      margin-bottom: 8px;
    }
  }
    .message-page {
    max-width: 1300px;
    margin: 40px auto;
    padding: 0 20px;
  }
  
  .page-header {
    background: #fff;
    border-radius: 10px;
    padding: 25px 30px;
    margin-bottom: 25px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
  }
  
  .page-title {
    font-size: 24px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
    padding-left: 15px;
    position: relative;
  }
  
  .page-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: linear-gradient(180deg, #4a90e2 0%, #357abd 100%);
    border-radius: 2px;
  }
  
  .page-desc {
    color: #999;
    font-size: 14px;
    margin-left: 19px;
  }
  
  .form-container {
    background: #fff;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    max-width: 700px;
    margin: 0 auto;
  }
  
  .form-group {
    margin-bottom: 24px;
  }
  
  .form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
  }
  
  .form-label .required {
    color: #e74c3c;
    margin-left: 3px;
  }
  
  .form-input,
  .form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e8ecf1;
    border-radius: 8px;
    font-size: 14px;
    color: #333;
    background: #f9fafb;
    transition: all 0.3s ease;
    outline: none;
    font-family: inherit;
  }
  
  .form-input:focus,
  .form-textarea:focus {
    border-color: #4a90e2;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
  }
  
  .form-input::placeholder,
  .form-textarea::placeholder {
    color: #aaa;
  }
  
  .form-textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
  }
  
  .form-hint {
    font-size: 12px;
    color: #999;
    margin-top: 6px;
  }
  
  .submit-btn {
    width: 100%;
    padding: 14px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
  }
  
  .submit-btn:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
  }
  
  .submit-btn:active {
    transform: translateY(0);
  }
  
  .form-tips {
    background: #f0f6ff;
    border-left: 4px solid #4a90e2;
    padding: 15px 20px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 30px;
    font-size: 14px;
    color: #555;
  }
  
  .form-tips i {
    margin-right: 8px;
    color: #4a90e2;
  }
  
  @media (max-width: 768px) {
    .message-page {
      margin: 25px auto;
      padding: 0 15px;
    }
    
    .form-container {
      padding: 25px 20px;
    }
    
    .page-header {
      padding: 20px;
    }
    
    .page-title {
      font-size: 20px;
    }
    
    .page-desc {
      margin-left: 19px;
      font-size: 13px;
    }
  }
  
  @media (max-width: 480px) {
    .message-page {
      padding: 0 12px;
      margin: 15px auto;
    }
    
    .form-container {
      padding: 20px 15px;
    }
    
    .form-input,
    .form-textarea {
      padding: 10px 14px;
      font-size: 13px;
    }
    
    .submit-btn {
      padding: 12px 25px;
      font-size: 15px;
    }
  }
 .product-page {
    max-width: 1300px;
    margin: 40px auto;
    padding: 0 20px;
  }
  
  .page-header {
    background: #fff;
    border-radius: 10px;
    padding: 25px 30px;
    margin-bottom: 25px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
  }
  
  .page-title {
    font-size: 24px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
    padding-left: 15px;
    position: relative;
  }
  
  .page-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: linear-gradient(180deg, #4a90e2 0%, #357abd 100%);
    border-radius: 2px;
  }
  
  .category-filter {
    background: #fff;
    border-radius: 10px;
    padding: 20px 30px;
    margin-bottom: 25px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
  }
  
  .category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    list-style: none;
  }
  
  .category-list li {
    position: relative;
  }
  
  .category-list a {
    display: inline-block;
    padding: 8px 20px;
    color: #555;
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
  }
  
  .category-list a:hover {
    border-color: #4a90e2;
    color: #4a90e2;
    background: #f0f6ff;
  }
  
  .category-list li.active a {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-color: transparent;
  }
  
  .product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 35px;
  }
  
  .product-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
    cursor: pointer;
  }
  
  .product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
  }
  
  .product-thumb {
    position: relative;
    width: 100%;
    padding-top: 75%;
    overflow: hidden;
    background: #f5f7fa;
  }
  
  .product-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }
  
  .product-card:hover .product-thumb img {
    transform: scale(1.08);
  }
  
  .product-info {
    padding: 18px;
  }
  
  .product-title {
    font-size: 15px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .product-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .product-title a:hover {
    color: #4a90e2;
  }
  
  .product-desc {
    font-size: 13px;
    color: #999;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  @media (max-width: 1200px) {
    .product-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }
  
  @media (max-width: 900px) {
    .product-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .product-page {
      margin: 25px auto;
    }
  }
  
  @media (max-width: 600px) {
    .product-page {
      padding: 0 12px;
      margin: 15px auto;
    }
    
    .page-header,
    .category-filter {
      padding: 20px;
    }
    
    .page-title {
      font-size: 20px;
    }
    
    .category-list {
      gap: 8px;
    }
    
    .category-list a {
      padding: 6px 14px;
      font-size: 13px;
    }
    
    .product-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }
    
    .product-info {
      padding: 12px;
    }
    
    .product-title {
      font-size: 14px;
    }
  }
  
  @media (max-width: 400px) {
    .product-grid {
      /*grid-template-columns: 1fr;*/
    }
  }
 
.news-page {
    max-width: 1300px;
    margin: 40px auto;
    padding: 0 20px;
    display: flex;
    gap: 25px;
  }
  
  .news-main {
    flex: 1;
    min-width: 0;
  }
  
  .page-header {
    background: #fff;
    border-radius: 10px;
    padding: 25px 30px;
    margin-bottom: 20px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
  }
  
  .page-title {
    font-size: 24px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
    padding-left: 15px;
    position: relative;
  }
  
  .page-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: linear-gradient(180deg, #4a90e2 0%, #357abd 100%);
    border-radius: 2px;
  }
  
  .page-breadcrumb {
    color: #999;
    font-size: 13px;
  }
  
  .news-list {
    background: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
  }
  
  .news-item {
    display: flex;
    gap: 20px;
    padding: 25px 0;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
  }
  
  .news-item:first-child {
    padding-top: 0;
  }
  
  .news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .news-item:hover {
    background: #fafbfc;
    margin: 0 -15px;
    padding-left: 15px;
    padding-right: 15px;
    border-radius: 8px;
  }
  
  .news-thumb {
    flex-shrink: 0;
    width: 200px;
    height: 135px;
    border-radius: 8px;
    overflow: hidden;
  }
  
  .news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
  }
  
  .news-item:hover .news-thumb img {
    transform: scale(1.05);
  }
  
  .news-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  
  .news-title {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
    line-height: 1.4;
  }
  
  .news-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
  }
  
  .news-title a:hover {
    color: #4a90e2;
  }
  
  .news-excerpt {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  .news-meta {
    display: flex;
    gap: 20px;
    color: #999;
    font-size: 13px;
  }
  
  .news-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
  }
  
  @media (max-width: 900px) {
    .news-page {
      flex-direction: column;
      margin: 25px auto;
    }
    
    .news-thumb {
      width: 160px;
      height: 110px;
    }
    
    .news-title {
      font-size: 16px;
    }
  }
  
  @media (max-width: 600px) {
    .news-page {
      padding: 0 12px;
      margin: 15px auto;
    }
    
    .news-list {
      padding: 20px;
    }
    
    .news-item {
      flex-direction: column;
      gap: 15px;
    }
    
    .news-thumb {
      width: 100%;
      height: 180px;
    }
    
    .page-header {
      padding: 20px;
    }
    
    .page-title {
      font-size: 20px;
    }
  }
  .detail-page {
    max-width: 1300px;
    margin: 40px auto;
    padding: 0 20px;
    display: flex;
    gap: 25px;
  }
  
  .detail-main {
    flex: 1;
    min-width: 0;
  }
  
  .article-card {
    background: #fff;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    margin-bottom: 25px;
  }
  
  .article-header {
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 25px;
    margin-bottom: 30px;
  }
  
  .article-title {
    font-size: 28px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 15px;
    line-height: 1.4;
  }
  
  .article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: #999;
    font-size: 14px;
  }
  
  .article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  
  .article-body {
    font-size: 16px;
    line-height: 1.9;
    color: #444;
  }
  
  .article-body p {
    margin-bottom: 18px;
    text-align: justify;
  }
  
  .article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  }
  
  .article-body h2 {
    font-size: 22px;
    color: #1a1a1a;
    margin: 30px 0 15px;
    padding-left: 15px;
    border-left: 4px solid #4a90e2;
  }
  
  .article-body h3 {
    font-size: 19px;
    color: #1a1a1a;
    margin: 25px 0 12px;
  }
  
  .article-body h4 {
    font-size: 17px;
    color: #333;
    margin: 20px 0 10px;
  }
  
  .article-body ul,
  .article-body ol {
    padding-left: 25px;
    margin-bottom: 18px;
  }
  
  .article-body li {
    margin-bottom: 8px;
  }
  
  .article-body blockquote {
    border-left: 4px solid #4a90e2;
    background: #f0f6ff;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
    color: #555;
  }
  
  .article-body a {
    color: #4a90e2;
    text-decoration: none;
  }
  
  .article-body a:hover {
    text-decoration: underline;
  }
  
  .article-nav {
    background: #fff;
    border-radius: 10px;
    padding: 25px 40px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
  }
  
  .nav-item {
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
  }
  
  .nav-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .nav-label {
    font-size: 13px;
    color: #999;
    margin-bottom: 5px;
  }
  
  .nav-link {
    color: #333;
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s ease;
    display: inline-block;
  }
  
  .nav-link:hover {
    color: #4a90e2;
  }
  
  
  
  @media (max-width: 900px) {
    .detail-page {
      flex-direction: column;
      margin: 25px auto;
    }
    
    .article-card {
      padding: 25px;
    }
    
    .article-title {
      font-size: 22px;
    }
    
    .article-body {
      font-size: 15px;
    }
  }
  
  @media (max-width: 600px) {
    .detail-page {
      padding: 0 12px;
      margin: 15px auto;
    }
    
    .article-card {
      padding: 20px;
    }
    
    .article-title {
      font-size: 20px;
    }
    
    .article-nav {
      padding: 20px;
    }
  } 
   .nav-link {
    display: block;
    padding: 10px 18px;
    color: #333;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s ease;
  }
  
  .nav-link:hover {
    color: #667eea;
    background: #f5f7ff;
  }
  .nav-link.active {
    color: #667eea;
    background: #f5f7ff;
  }
  .nav-link-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }
  
  .nav-link-wrapper .nav-link {
    flex: 1;
  }
  
  .dropdown-toggle-btn {
    background: none;
    border: none;
    padding: 10px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    color: #999;
    font-size: 12px;
    transition: all 0.3s ease;
    flex-shrink: 0;
  }
  
  .dropdown-toggle-btn:hover {
    color: #667eea;
  }
  
  .toggle-icon {
    display: inline-block;
    transition: transform 0.3s ease;
    font-size: 10px;
  }
  
  @media (max-width: 992px) {
    .dropdown-menu {
      /*display: none !important;*/
    }
    
    .nav-item.dropdown.active .dropdown-menu {
      display: block !important;
    }
  }
  
  @media (min-width: 993px) {
    .dropdown-toggle-btn {
      display: none;
    }
    
    .nav-link-wrapper {
      position: relative;
    }
    
    .nav-item.dropdown:hover .dropdown-menu {
      display: block;
      animation: fadeIn 0.3s ease;
    }
    
    .dropdown-menu {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      min-width: 180px;
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.12);
      padding: 8px 0;
      margin-top: 8px;
      z-index: 1001;
    }
  }
.fanye{text-align:center;clear: both;padding-top: 26px;padding-right: 0;padding-bottom: 30px;padding-left: 0; font-size:14px;}
.fanye a{display:inline-block;height:30px;color:#fff;text-align:center;margin:0 4px;line-height:30px; text-decoration:none;}
.fanye a.fpage{background-color:#999;width:30px;height:30px;color:#fff;text-align:center;line-height:30px}
.fanye a.fbtn{background-color:#333;width:60px;}
.fanye a.fpage:hover{background-color:#6e65c7;box-shadow: 0px 0px 9px #999;}
.fanye a.fcur{background-color:#6e65c7;width:30px; text-align:center;box-shadow: 0px 0px 9px #999;}
@media (max-width:768px) {
.fanye{}
.fanye a{}
.fanye a.fpage{}
.fanye a.fbtn{}
.fanye a.fpage:hover{}
.fanye a.fcur{}

.fanye {margin: 15px 0;width: 100%;line-height: 34px;text-align: center;color: #fff;}
.fanye a {color: #fff;padding: 0 11px;margin: 0 5px;font-weight: bold;background:#939393;margin-top:10px;}
.fanye a.fcur {background:#6e65c7;box-shadow: 0px 0px 9px #999;}
.fanye * {display: inline-block;_display: inline;vertical-align: middle;line-height: 28px;/*height: 28px;*/padding-bottom: 1px;}
.fanye a:hover {display: inline-block;color: #fff;background:#6e65c7;box-shadow: 0px 0px 9px #999;}
}