@charset "utf-8";
/* CSS Document */


        /* 全局样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", Arial, sans-serif;
        }
        
        /* 基础样式 - 优化SEO友好的语义化样式 */
        body {
            color: #333;
            line-height: 1.7; /* 提升可读性，利于用户停留时长 */
            position: relative;
            padding-bottom: 0px;
            font-size: 16px; /* 基础字体大小优化 */
        }
        
        a {
            text-decoration: none;
            color: #333;
            transition: all 0.3s ease;
        }
        
        /* 优化链接SEO - 增加nofollow处理非核心链接 */
        a.external {
            rel: "nofollow";
        }
        
        ul {
            list-style: none;
        }
        
        .container {
            width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部导航样式 - 语义化优化 */
        header {
            background: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 999;
        }
        
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        
        .logo img {
            height: 60px;
            alt: "专业网络服务公司LOGO - 网站建设_SEO优化_小程序开发"; /* 优化logo alt标签 */
        }
        
        /* 桌面端导航 - SEO友好的导航结构 */
        .nav-list {
            display: flex;
        }
        
        .nav-item {
            margin: 0 15px;
            position: relative;
        }
        
        .nav-item a {
            font-size: 16px;
            font-weight: 500;
            padding: 10px 0;
            display: block;
            transition: color 0.3s;
        }
        
        .nav-item a:hover {
            color: #007bff;
        }
        
        .nav-item a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #007bff;
            transition: width 0.3s;
        }
        
        .nav-item a:hover::after {
            width: 100%;
        }
        
        /* 移动端导航按钮 */
        .mobile-nav-btn {
            display: none;
            width: 40px;
            height: 40px;
            background: #007bff;
            color: #fff;
            border: none;
            border-radius: 50%;
            font-size: 20px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            z-index: 1000;
        }
        
        /* Banner轮播样式 - 优化加载性能 */
        .banner {
            position: relative;
            height: 100%;
            overflow: hidden;
        }
        
        .banner-slides {
            display: flex;
            width: 500%;
            height: 100%;
            transition: transform 0.5s ease;
        }
        
        .banner-slide {
            width: 20%;
            height: 100%;
        }
        
        .banner-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            loading: "lazy"; /* 懒加载优化，提升页面加载速度 */
        }
        
        /* 轮播控制按钮 */
        .banner-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 40px;
            height: 40px;
            background: rgba(0,0,0,0.5);
            color: #fff;
            border: none;
            border-radius: 50%;
            font-size: 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.3s;
            z-index: 10;
        }
        
        .banner-btn:hover {
            background: rgba(0,0,0,0.8);
        }
        
        .prev-btn {
            left: 20px;
        }
        
        .next-btn {
            right: 20px;
        }
        
        /* 轮播指示器 */
        .banner-indicators {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            z-index: 10;
        }
        
        .indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255,255,255,0.5);
            cursor: pointer;
            transition: background 0.3s, transform 0.3s;
        }
        
        .indicator.active {
            background: #fff;
            transform: scale(1.2);
        }
        
        /* 业务板块通用样式 - 语义化优化 */
        .section {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 32px;
            color: #333;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
            /* H1-H6层级优化，确保标题层级合理 */
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: #007bff;
        }
        
        .section-title p {
            color: #666;
            font-size: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        
        /* 网站建设业务卡片样式 - 优化内容可读性 */
        .service-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .service-card {
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }
        
        .card-img {
            overflow: hidden;
        }
        
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
            loading: "lazy"; /* 懒加载优化 */
        }
        
        .service-card:hover .card-img img {
            transform: scale(1.1);
        }
        
        .card-content {
            padding: 25px;
        }
        
        .card-content h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #333;
        }
        
        .card-content p {
            color: #666;
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
            /* 优化内容密度，提升可读性 */
        }
        
        .card-content a {
            display: inline-block;
            color: #007bff;
            font-weight: 500;
            transition: color 0.3s;
            /* 优化锚文本，增加关键词密度 */
        }
        
        .card-content a:hover {
            color: #0056b3;
        }
        
        /* 网站维护板块样式 - 两列折叠布局 */
        .maintenance-list {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        
        .maintenance-item {
            background: #f8f9fa;
            border-left: 4px solid #007bff;
            padding: 20px;
            border-radius: 0 8px 8px 0;
            transition: background 0.3s;
        }
        
        .maintenance-item:hover {
            background: #e9ecef;
        }
        
        .maintenance-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }
        
        .maintenance-item h4 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #333;
        }
        
        .maintenance-toggle {
            font-size: 20px;
            color: #007bff;
            transition: transform 0.3s;
        }
        
        .maintenance-content {
            color: #666;
            font-size: 14px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        
        .maintenance-content.show {
            max-height: 500px;
            margin-top: 10px;
        }
        
        /* 小程序开发功能展示 */
        .wechat-features {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        .feature-item {
            text-align: center;
            padding: 30px 20px;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        
        .feature-item:hover {
            transform: translateY(-5px);
        }
        
        .feature-icon {
            font-size: 40px;
            color: #007bff;
            margin-bottom: 15px;
        }
        
        .feature-item h4 {
            font-size: 18px;
            margin-bottom: 10px;
        }
        
        .feature-item p {
            color: #666;
            font-size: 14px;
        }
        
        /* GEO优化板块 - 蓝色背景长条样式 */
        .geo-banner {
            background: linear-gradient(135deg, #0066cc 0%, #0099ff 100%);
            color: #fff;
            padding: 80px 0;
            border-radius: 8px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .geo-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('geo-bg.jpg') no-repeat center center;
            background-size: cover;
            opacity: 0.1;
            z-index: 1;
        }
        
        .geo-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .geo-content h2 {
            font-size: 40px;
            margin-bottom: 20px;
        }
        
        .geo-content p {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        
        .geo-btn {
            display: inline-block;
            background: #fff;
            color: #007bff;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
            /* 优化CTA按钮，提升转化 */
        }
        
        .geo-btn:hover {
            background: #f0f7ff;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        /* SEO案例展示 */
        .seo-cases {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        
        .seo-case {
            display: flex;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            overflow: hidden;
        }
        
        .case-img {
            width: 40%;
        }
        
        .case-img img {
            width: 100%;
            object-fit: cover;
            loading: "lazy"; /* 懒加载优化 */
        }
        
        .case-content {
            width: 60%;
            padding: 25px;
        }
        
        .case-content h4 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #333;
        }
        
        .case-content .case-meta {
            color: #999;
            font-size: 12px;
            margin-bottom: 10px;
        }
        
        .case-content p {
            color: #666;
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        
        /* 自媒体运营板块 - 折叠功能（第一条默认展开） */
        .media-list {
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .media-item {
            background: #f8f9fa;
            border-left: 4px solid #007bff;
            padding: 20px;
            margin-bottom: 15px;
            border-radius: 0 8px 8px 0;
            transition: background 0.3s;
        }
        
        .media-item:hover {
            background: #e9ecef;
        }
        
        .media-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }
        
        .media-item h4 {
            font-size: 18px;
            color: #333;
        }
        
        .media-toggle {
            font-size: 20px;
            color: #007bff;
            transition: transform 0.3s;
        }
        
        .media-content {
            color: #666;
            font-size: 14px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        
        .media-content.show {
            max-height: 500px;
            margin-top: 10px;
        }
        
        /* 客户案例展示 - 4列 + 箭头切换 */
        .cases-slider {
            position: relative;
            overflow: hidden;
            padding: 20px 0;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .cases-wrapper {
            display: flex;
            transition: transform 0.5s ease;
        }
        
        .case-card {
            min-width: 25%;
            padding: 0 15px;
        }
        
        .case-card-inner {
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            overflow: hidden;
            height: 100%;
        }
        
        .case-card-img {
        }
        
        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            loading: "lazy"; /* 懒加载优化 */
        }
        
        .case-card-content {
            padding: 20px;
        }
        
        .case-card-content h4 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #333;
        }
        
        .case-card-content .case-type {
            display: inline-block;
            background: #007bff;
            color: #fff;
            font-size: 12px;
            padding: 3px 8px;
            border-radius: 4px;
            margin-bottom: 10px;
        }
        
        .case-card-content p {
            color: #666;
            font-size: 14px;
            line-height: 1.6;
        }
        
        /* 客户案例切换按钮 */
        .cases-nav-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 40px;
            height: 40px;
            background: #007bff;
            color: #fff;
            border: none;
            border-radius: 50%;
            font-size: 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 10;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        
        .cases-prev {
            left: 0px;
        }
        
        .cases-next {
            right: 0px;
        }
        
        /* 新闻资讯样式 - 左右分区 */
        .news-container {
            display: flex;
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .news-left {
            width: 50%;
            background: linear-gradient(135deg, #0066cc 0%, #0099ff 100%);
            border-radius: 8px;
            padding: 20px;
            color: #fff;
            display: flex;
            flex-direction: column;
        }
        
        .news-left-img {
            width: 100%;
            height: 300px;
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        
        .news-left-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            loading: "lazy"; /* 懒加载优化 */
        }
        
        .news-left h3 {
            font-size: 24px;
            margin-bottom: 15px;
        }
        
        .news-left p {
            font-size: 16px;
            opacity: 0.9;
            line-height: 1.7;
        }
        
        .news-right {
            width: 50%;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .news-right-top {
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            padding: 20px;
        }
        
        .news-right-top h4 {
            font-size: 20px;
            margin-bottom: 10px;
            color: #333;
        }
        
        .news-right-top p {
            color: #666;
            font-size: 14px;
            line-height: 1.6;
        }
        
        .news-right-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        
        .news-right-item {
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            padding: 15px;
            transition: transform 0.3s;
        }
        
        .news-right-item:hover {
            transform: translateY(-5px);
        }
        
        .news-right-item h5 {
            font-size: 16px;
            color: #333;
            line-height: 1.4;
        }
        
        /* 页脚样式 - SEO优化的页脚结构 */
        footer {
            background: #333;
            color: #fff;
            padding: 60px 0 20px;
            margin-top: 40px;
        }
        
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-col h4 {
            font-size: 18px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background: #007bff;
        }
        
        .footer-col ul li {
            margin-bottom: 10px;
        }
        
        .footer-col ul li a {
            color: #ccc;
            transition: color 0.3s;
            /* 优化内部链接，提升权重传递 */
        }
        
        .footer-col ul li a:hover {
            color: #007bff;
        }
        
        .contact-info {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .contact-icon {
            width: 30px;
            height: 30px;
            background: #007bff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
        }
        
        /* 微信二维码 */
        .qrcode {
            text-align: center;
        }
        
        .qrcode img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            margin-bottom: 10px;
            loading: "lazy"; /* 懒加载优化 */
        }
        
        .qrcode p {
            color: #ccc;
            font-size: 14px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #999;
            font-size: 14px;
            /* 版权信息优化，增加品牌词密度 */
        }
        
        /* 底部浮动功能按钮 */
        .float-buttons {
            position: fixed;
            bottom: 20px;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            gap: 20px;
            z-index: 998;
        }
        
        .float-btn {
            width: 60px;
            height: 60px;
            background: #007bff;
            color: #fff;
            border-radius: 50%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            transition: all 0.3s;
            text-align: center;
            padding: 5px;
        }
        
        .float-btn:hover {
            transform: translateY(-5px);
            background: #0056b3;
        }
        
        .float-btn i {
            font-size: 20px;
            margin-bottom: 5px;
        }
        
        /* 响应式适配 - 提升移动端SEO体验 */
        @media (max-width: 1400px) {
            .container {
                width: 100%;
            }
            
            .service-cards, .news-list {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .wechat-features, .media-grid, .footer-inner {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .case-card {
                min-width: 33.333%;
            }
            
            .cases-prev {
                left: 10px;
            }
            
            .cases-next {
                right: 10px;
            }
        }
        
        @media (max-width: 768px) {
            /* 移动端导航 */
            .header-inner {
                flex-direction: row;
                height: 70px;
            }
            
            .nav-list {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
                transform: translateY(-150%);
                transition: transform 0.3s ease;
                z-index: 999;
            }
            
            .nav-list.show {
                transform: translateY(0);
            }
            
            .nav-item {
                margin: 10px 0;
                width: 100%;
                text-align: center;
            }
            
            .mobile-nav-btn {
                display: flex;
            }
            
            .banner {
                height: 300px;
            }
            
            .service-cards, .seo-cases {
                grid-template-columns: 1fr;
            }
            
            .wechat-features, .media-grid, .footer-inner {
                grid-template-columns: 1fr;
            }
            
            .seo-case {
                flex-direction: column;
            }
            
            .case-img, .case-content {
                width: 100%;
            }
            
            .case-img {
                height: 200px;
            }
            
            /* 网站维护移动端单列 */
            .maintenance-list {
                grid-template-columns: 1fr;
            }
            
            /* 客户案例移动端单列 */
            .case-card {
                min-width: 100%;
            }
            
            /* 新闻资讯移动端堆叠 */
            .news-container {
                flex-direction: column;
            }
            
            .news-left, .news-right {
                width: 100%;
            }
            
            .news-right-list {
                grid-template-columns: 1fr;
            }
            
            /* 浮动按钮适配 */
            .float-buttons {
                gap: 10px;
            }
            
            .float-btn {
                width: 50px;
                height: 50px;
                font-size: 10px;
            }
            
            .float-btn i {
                font-size: 18px;
            }
        }

        /* SEO优化 - 页面加载速度优化 */
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .section {
            animation: fadeIn 0.8s ease-in-out;
        }

        /* 锚点跳转平滑滚动 - 提升用户体验 */
        html {
            scroll-behavior: smooth;
        }
		/* 底部浮动功能按钮 - 仅移动端显示 */
.float-buttons {
    position: fixed;
    bottom: 20px;
    left: 0;
    right: 0;
    display: none; /* 默认隐藏（PC端） */
    justify-content: center;
    gap: 0; /* 取消按钮间距，让按钮紧贴 */
    z-index: 998;
}

/* 移动端显示浮动按钮 */
@media (max-width: 768px) {
    .float-buttons {
        display: flex; /* 移动端显示 */
    }
    
    .float-btn {
        width: 70px;
        height: 50px;
        font-size: 10px;
    }
    
    .float-btn i {
        font-size: 18px;
    }
}

.float-btn {
    width: 100%; /* 加宽按钮适配文字 */
    height: 60px;
    background: #007bff; /* 参考图的蓝色主色调 */
    color: #fff;
    border-radius: 0; /* 取消圆角，改为直角 */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: all 0.3s;
    text-align: center;
    padding: 5px;
    border-right: 1px solid #fff; /* 按钮间添加白色分隔线 */
    cursor: pointer; /* 添加鼠标指针样式 */
}

/* 最后一个按钮取消右侧边框 */
.float-btn:last-child {
    border-right: none;
}

.float-btn:hover {
    transform: translateY(-5px);
    background: #0056b3; /* hover时加深蓝色 */
}

.float-btn i {
    font-size: 20px;
    margin-bottom: 5px;
}

/* 二维码弹窗样式 */
.qrcode-modal {
    display: none; /* 默认隐藏 */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.qrcode-modal-content {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    max-width: 300px;
    width: 90%;
}

.qrcode-modal-img {
    width: 200px;
    height: 200px;
    margin: 0 auto 15px;
}

.qrcode-modal-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.wechat-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 10px 0;
    padding: 10px;
    border: 1px solid #eee;
    border-radius: 5px;
}

.wechat-copy span {
    font-size: 16px;
    color: #333;
}

.copy-btn {
    background: #007bff;
    color: #fff;
    border: none;
    padding: 5px 10px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 14px;
}

.copy-btn:hover {
    background: #0056b3;
}

.close-modal {
    background: #dc3545;
    color: #fff;
    border: none;
    padding: 8px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 15px;
    font-size: 16px;
}

.close-modal:hover {
    background: #bb2d3b;
}

/* 复制成功提示 */
.copy-toast {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    z-index: 10000;
    font-size: 16px;
}
	/* 新闻资讯板块样式 - 独立模块化，无重复 */
.news-section {
    padding: 50px 0;
    background: #f9f9f9;
}
.news-section .container {
    width: 1400px;
    margin: 0 auto;
}
.news-section .section-title {
    text-align: center;
    margin-bottom: 40px;
}
.news-section .section-title h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}
.news-section .section-title p {
    color: #666;
    font-size: 16px;
    line-height: 1.5;
}
.news-section .news-container {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
/* 左侧主推新闻 */
.news-section .news-left {
    width: 40%;
}
.news-section .main-news {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.news-section .main-news .news-img {
    width: 100%;
    height: 250px;
    overflow: hidden;
}
.news-section .main-news .news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}
.news-section .main-news:hover .news-img img {
    transform: scale(1.05);
}
.news-section .main-news .news-content {
    padding: 20px;
}
.news-section .news-date {
    color: #999;
    font-size: 14px;
    margin-bottom: 10px;
    display: block;
}
.news-section .main-news h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
    font-weight: 500;
}
.news-section .main-news p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
    font-size: 14px;
}
.news-section .main-news a {
    display: inline-block;
    color: #007bff;
    text-decoration: none;
    font-size: 14px;
}
.news-section .main-news a:hover {
    color: #0056b3;
    text-decoration: underline;
}
/* 右侧新闻区域 - 修正布局：上方1条+下方4条 */
.news-section .news-right {
    width: 60%;
}
/* 右侧上方1条新闻（标题+描述） */
.news-section .news-top-single {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}
.news-section .news-top-single .news-date {
    font-size: 13px;
    margin-bottom: 8px;
}
.news-section .news-top-single h4 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #333;
    font-weight: 500;
}
.news-section .news-top-single p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}
/* 右侧下方4条新闻（仅标题+日期，一行一列） */
.news-section .news-bottom-list {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.news-section .news-bottom-item {
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s ease;
    padding-left: 8px;
    padding-right: 8px;
    border-radius: 4px;
}
.news-section .news-bottom-item:hover {
    background-color: #f8f9fa;
}
.news-section .news-bottom-item:last-child {
    border-bottom: none;
}
.news-section .news-bottom-item h4 {
    font-size: 15px;
    color: #333;
    margin: 0;
    font-weight: normal;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80%;
}
.news-section .news-bottom-item .news-date {
    font-size: 13px;
    margin: 0;
    color: #999;
    white-space: nowrap;
}

/* 响应式适配 */
@media (max-width: 1400px) {
    .news-section .container {
        width: 95%;
    }
}
@media (max-width: 768px) {
    .news-section .news-container {
        flex-direction: column;
    }
    .news-section .news-left,
    .news-section .news-right {
        width: 100%;
    }
}	
/* 导航下拉菜单基础样式 */
.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    position: relative; /* 为下拉菜单定位做准备 */
}

.nav-item {
    position: relative; /* 下拉菜单相对父元素定位 */
    margin: 0 15px;
}

.nav-item a {
    text-decoration: none;
    color: #333;
    padding: 10px 0;
    display: block;
}

/* 下拉菜单容器 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    min-width: 200px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-radius: 4px;
    padding: 10px 0;
    margin: 0;
    list-style: none;
    display: none; /* 默认隐藏 */
    z-index: 999; /* 确保在最上层 */
}

/* 下拉菜单项 */
.dropdown-item {
    padding: 0 15px;
}

.dropdown-item a {
    padding: 8px 0;
    color: #666;
    transition: color 0.3s;
}

.dropdown-item a:hover {
    color: #007bff; /* hover变色 */
}

/* 悬停显示下拉菜单 */
.dropdown:hover .dropdown-menu {
    display: block;
}

/* 移动端适配（可选） */
@media (max-width: 768px) {
    .nav-list {
        flex-direction: column;
    }
    .dropdown-menu {
        position: static;
        box-shadow: none;
        padding-left: 20px;
    }
}