:root {
            --primary: #0a4da2;
            --secondary: #ff6b00;
            --dark: #1a2b4d;
            --light: #f8f9fa;
            --gray: #6c757d;
            --image-bg: #f0f2f5;
        }
        
                    img {
            
              max-width: 100%;  /* 图片最大宽度为容器宽度 */
            
              height: auto;     /* 高度自动调整，保持比例 */
            
              width: expression(this.width > 560 ? "560px" : this.width); /* 兼容IE的旧代码，可选 */
            
            }
        
        body {
            font-family: 'Open Sans', sans-serif;
            color: #333;
            line-height: 1.8;
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            color: var(--dark);
        }
        
        /* 头部区域样式 - 修复logo与导航对齐 */
        .header-top {
            background-color: var(--dark);
            color: white;
            padding: 8px 0;
            font-size: 0.9rem;
        }
        
        .header-top a {
            color: white;
            text-decoration: none;
        }
        
        .header-top-right {
            text-align: right;
        }
        
        .navbar {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 0;
        }
        
        .container {
            width: 100%;
            padding-right: var(--bs-gutter-x, 0.75rem);
            padding-left: var(--bs-gutter-x, 0.75rem);
            margin-right: auto;
            margin-left: auto;
            max-width: 1140px;
        }
        
        .navbar-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 15px 0;
        }
        
        .navbar-brand {
            display: flex;
            align-items: center;
            padding: 0;
            margin: 0;
        }
        
        .navbar-brand img {
            height: 50px;
            width: auto;
        }
        
        .navbar-nav {
            display: flex;
            align-items: center;
        }
        
        .navbar-nav .nav-link {
            font-weight: 500;
            color: var(--dark);
            margin: 0 10px;
            transition: color 0.3s;
            padding: 10px 0;
        }
        
        .navbar-nav .nav-link:hover {
            color: var(--secondary);
        }
        
        .dropdown-menu {
            border: none;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
            padding: 10px 0;
        }
        
        .dropdown-item {
            padding: 8px 20px;
            transition: all 0.2s;
        }
        
        .dropdown-item:hover {
            background-color: #e1e5ed;
            color: var(--primary);
        }
        
        /* 按钮样式 */
        .btn-primary {
            background-color: var(--secondary);
            border-color: var(--secondary);
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .btn-primary:hover {
            background-color: #e55a00;
            border-color: #e55a00;
            transform: translateY(-2px);
        }
        
        .btn-sm {
            padding: 6px 18px;
            font-size: 0.85rem;
        }
        
        /* 面包屑导航 */
        .breadcrumbs {
            padding: 15px 0;
            background-color: var(--light);
            margin-bottom: 30px;
        }
        
        .breadcrumbs-container {
            display: flex;
            align-items: center;
            font-size: 0.9rem;
        }
        
        .breadcrumbs a {
            color: var(--gray);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .breadcrumbs a:hover {
            color: var(--secondary);
        }
        
        .breadcrumbs .separator {
            margin: 0 8px;
            color: var(--gray);
        }
        
        .breadcrumbs .current {
            color: var(--dark);
            font-weight: 500;
        }
        
        /* 资讯详情核心样式 */
        .news-detail-section {
            padding: 0px 0 50px;
        }
        
        .main-container {
            display: flex;
            gap: 30px;
        }
        
        /* 左侧文章主体区 - 左对齐logo列 */
        .news-main {
            flex: 0 0 calc(75% - 15px); /* 占比75% */
        }
        
        /* 资讯标题与元数据（包含完整时间） */
        .news-header {
            margin-bottom: 30px;
        }
        
        .news-title {
            font-size: 2rem;
            line-height: 1.3;
            margin-bottom: 15px;
        }
        
        .news-meta {
            display: flex;
            align-items: center;
            gap: 15px;
            color: var(--gray);
            font-size: 0.85rem;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        
        .meta-item {
            display: flex;
            align-items: center;
        }
        
        .meta-item i {
            color: var(--secondary);
            margin-right: 6px;
            width: 14px;
            text-align: center;
        }
        
        .news-category {
            padding: 2px 10px;
            background-color: rgba(10, 77, 162, 0.1);
            color: var(--primary);
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        
        /* 资讯封面图 */
        .news-cover {
            margin-bottom: 30px;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        }
        
        .news-cover img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        
        /* 资讯内容区 */
        .news-content {
            font-size: 1.05rem;
            color: #444;
        }
        
        .news-content p {
            margin-bottom: 20px;
            line-height: 1.8;
        }
        
        .news-content h3 {
            font-size: 1.4rem;
            margin: 35px 0 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--light);
        }
        
        .news-content h4 {
            font-size: 1.2rem;
            margin: 25px 0 12px;
        }
        
        .news-content ul, .news-content ol {
            margin-bottom: 20px;
            padding-left: 25px;
        }
        
        .news-content li {
            margin-bottom: 10px;
            line-height: 1.7;
        }
        
        .news-content strong {
            color: var(--dark);
        }
        
        .news-content em {
            color: var(--primary);
            font-style: italic;
        }
        
        /* 图片组 */
        .news-gallery {
            margin: 40px 0;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 15px;
        }
        
        .gallery-item {
            border-radius: 6px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }
        
        .gallery-item img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform 0.3s;
        }
        
        .gallery-item:hover img {
            transform: scale(1.05);
        }
        
        .gallery-caption {
            padding: 12px;
            font-size: 0.85rem;
            color: var(--gray);
            background-color: white;
        }
        
        /* 引用块 */
        .news-quote {
            border-left: 4px solid var(--secondary);
            padding: 15px 20px;
            margin: 25px 0;
            background-color: rgba(255, 107, 0, 0.05);
            border-radius: 0 6px 6px 0;
        }
        
        .news-quote p {
            font-style: italic;
            color: var(--dark);
            margin-bottom: 0;
            font-size: 1rem;
        }
        
        /* 分享区域 */
        .news-share {
            margin: 40px 0 0;
            padding: 15px;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        }
        
        .share-title {
            font-size: 1rem;
            margin-bottom: 12px;
            color: var(--dark);
        }
        
        .share-buttons {
            display: flex;
            gap: 8px;
        }
        
        .share-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            color: white;
            background-color: var(--gray);
            transition: all 0.3s;
            text-decoration: none;
        }
        
        .share-btn:hover {
            transform: translateY(-2px);
            color: white;
        }
        
        .share-btn.facebook {
            background-color: #1877f2;
        }
        
        .share-btn.twitter {
            background-color: #1da1f2;
        }
        
        .share-btn.linkedin {
            background-color: #0077b5;
        }
        
        .share-btn.whatsapp {
            background-color: #25d366;
        }
        
        /* 最新文章区域 - 三个一排 */
        .latest-news {
            padding: 50px 0;
            background-color: var(--light);
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .section-title {
            font-size: 1.8rem;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            width: 70px;
            height: 4px;
            background: var(--secondary);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
        }
        
        .section-description {
            color: var(--gray);
            max-width: 700px;
            margin: 0 auto;
        }
        
        .latest-news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .latest-news-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .latest-news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .latest-news-img {
            height: 160px;
            overflow: hidden;
        }
        
        .latest-news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .latest-news-card:hover .latest-news-img img {
            transform: scale(1.08);
        }
        
        .latest-news-content {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .latest-news-date {
            color: var(--gray);
            font-size: 0.8rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        
        .latest-news-date i {
            color: var(--secondary);
            margin-right: 6px;
            font-size: 0.7rem;
        }
        
        .latest-news-title {
            font-size: 1.1rem;
            margin-bottom: 12px;
            flex: 1;
        }
        
        .latest-news-title a {
            color: var(--dark);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .latest-news-title a:hover {
            color: var(--primary);
        }
        
        .latest-news-excerpt {
            font-size: 0.9rem;
            color: var(--gray);
            margin-bottom: 15px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        /* 右侧产品列表区 */
        .product-sidebar {
            flex: 0 0 calc(25% - 15px); /* 占比25% */
        }
        
        .sidebar-title {
            font-size: 1.3rem;
            margin-bottom: 20px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--secondary);
            display: inline-block;
        }
        
        /* 产品卡片 - 简化版 */
        .sidebar-product {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
            margin-bottom: 20px;
            transition: all 0.3s;
        }
        
        .sidebar-product:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
        }
        
        .product-img {
            height: 140px;
            overflow: hidden;
        }
        
        .product-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .sidebar-product:hover .product-img img {
            transform: scale(1.08);
        }
        
        .product-info {
            padding: 15px;
        }
        
        .product-name {
            font-size: 1rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        
        .product-name a {
            color: var(--dark);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .product-name a:hover {
            color: var(--primary);
        }
        
        .product-desc {
            font-size: 0.85rem;
            color: var(--gray);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
        }
        
        /* 底部区域样式 */
        .footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 20px;
        }
        
        .footer h5 {
            color: white;
            margin-bottom: 25px;
            font-weight: 600;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #b0b7c3;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .social-icons a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin-right: 10px;
            color: white;
            transition: all 0.3s;
        }
        
        .social-icons a:hover {
            background: var(--secondary);
            transform: translateY(-3px);
        }
        
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-top: 40px;
            text-align: center;
            color: #b0b7c3;
            font-size: 0.9rem;
        }
        
        /* 下拉菜单样式 */
        .mega-menu {
            padding: 20px !important;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            border: none;
        }

        .mega-menu .dropdown-item {
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s;
            margin-bottom: 2px;
            font-size: 0.9rem;
        }

        .mega-menu .dropdown-item:hover {
            background-color: #f0f7ff;
            color: var(--primary);
            transform: translateX(5px);
        }

        .mega-menu .fa-check {
            color: var(--secondary);
            font-size: 0.7rem;
        }

        /* 响应式调整 */
        @media (max-width: 991px) {
            .header-top-right {
                text-align: left;
                margin-top: 10px;
            }
            
            .main-container {
                flex-direction: column;
                gap: 40px;
            }
            
            .news-main, .product-sidebar {
                flex: 0 0 100%;
            }
            
            .product-sidebar {
                display: grid;
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                gap: 20px;
            }
            
            .sidebar-title {
                grid-column: 1 / -1;
                margin-bottom: 10px;
            }
            
            .news-title {
                font-size: 1.7rem;
            }
            
            .latest-news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .breadcrumbs {
                padding: 12px 0;
                margin-bottom: 25px;
            }
            
            .news-detail-section {
                padding: 20px 0 40px;
            }
            
            .news-header {
                margin-bottom: 25px;
            }
            
            .news-title {
                font-size: 1.5rem;
            }
            
            .news-meta {
                flex-wrap: wrap;
                gap: 10px;
            }
            
            .news-content {
                font-size: 1rem;
            }
            
            .news-content h3 {
                font-size: 1.3rem;
            }
            
            .news-content h4 {
                font-size: 1.1rem;
            }
            
            .news-gallery {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            
            .gallery-item img {
                height: 160px;
            }
            
            .latest-news {
                padding: 30px 0;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
        }
        
        @media (max-width: 576px) {
            .navbar-brand img {
                height: 35px;
            }
            
            .product-sidebar {
                grid-template-columns: 1fr;
            }
            
            .latest-news-grid {
                grid-template-columns: 1fr;
            }
            
            .mega-menu {
                width: 100% !important;
                min-width: auto !important;
                left: 0 !important;
            }
            
            .mega-menu .row {
                margin: 0;
            }
            
            .mega-menu .col-md-3 {
                margin-bottom: 15px;
            }
        }