/* --- 全局样式重置 --- */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth;}
        body { font-family: "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; background-color: #f9f9f9; }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        
        /* --- 通用工具类 --- */
        .container { width: 90%; max-width: 1200px; margin: 0 auto; }
        .text-center { text-align: center; }
        .btn { display: inline-block; padding: 12px 30px; background: #007BFF; color: #fff; border-radius: 5px; transition: 0.3s; font-weight: bold; }
        .btn:hover { background: #0056b3; }
        .section-padding { padding: 80px 0; }
        h1, h2, h3 { margin-bottom: 15px; color: #2c3e50; }
        
        /* --- 导航栏 --- */
        header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.1); position: fixed; width: 100%; top: 0; z-index: 1000; }
        /*----nav { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; }--*/
        .logo { font-size: 24px; font-weight: bold; color: #007BFF; }
        nav {
			display: flex;
			justify-content: space-between;
			align-items: center;
			height: 120px; /* 导航栏高度 */
		}

		.nav-links {
			display: flex;
			list-style: none;
			gap: 20px; /* 链接间距 */
			margin: 0;
			padding: 0;
		}

		.nav-links li a {
			text-decoration: none;
			color: #333;
			font-weight: 500;
			transition: color 0.3s;
		}

		.nav-links li a:hover {
			color: #007BFF; /* 悬停颜色 */
		}

		.btn {
			text-decoration: none;
			background-color: #007BFF;
			color: #fff;
			padding: 8px 20px;
			border-radius: 5px;
			font-weight: bold;
			transition: background 0.3s;
		}

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

		/* 隐藏汉堡菜单 (PC端) */
		.hamburger {
			display: none;
			cursor: pointer;
		}

		/* --- 响应式适配 (移动端 < 768px) --- */
		@media (max-width: 768px) {
			/* 显示汉堡菜单 */
			.hamburger {
				display: block;
				z-index: 1001; /* 保证在菜单上层 */
			}

			/* 汉堡菜单线条样式 */
			.hamburger .bar {
				display: block;
				width: 25px;
				height: 3px;
				margin: 5px auto;
				background-color: #333;
				transition: all 0.3s ease-in-out;
			}

			/* 导航链接变为下拉全屏菜单 */
			.nav-links {
				position: fixed;
				top: 0;
				left: -100%; /* 初始位置在屏幕左侧外 */
				width: 70%; /* 菜单宽度 */
				height: 100vh;
				background-color: #fff;
				flex-direction: column;
				justify-content: center; /* 垂直居中 */
				align-items: center;
				box-shadow: 2px 0 5px rgba(0,0,0,0.1);
				transition: left 0.3s ease-in-out; /* 滑动动画 */
				gap: 30px;
			}

			/* 激活状态：菜单滑入 */
			.nav-links.active {
				left: 0;
			}

			.nav-links li a {
				font-size: 18px; /* 移动端字体加大 */
			}

			/* 移动端隐藏原本的“免费咨询”按钮，或者你可以把它放进菜单里 */
			nav > .btn {
				display: none; 
			}

			/* 汉堡菜单变叉叉的动画 */
			.hamburger.active .bar:nth-child(1) {
				transform: translateY(8px) rotate(45deg);
			}
			.hamburger.active .bar:nth-child(2) {
				opacity: 0;
			}
			.hamburger.active .bar:nth-child(3) {
				transform: translateY(-8px) rotate(-45deg);
			}
		}
        
        /* --- 首屏海报 --- */
        .hero {
            background: linear-gradient(rgba(0, 50, 100, 0.8), rgba(0, 50, 100, 0.8)), url('https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            height: 60vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: #fff;
            margin-top: 120px; /* 抵消固定导航栏高度 */
        }
        .hero h1 { color: #fff; font-size: 2.5rem; margin-bottom: 20px; }
        .hero p { font-size: 1.2rem; margin-bottom: 30px; opacity: 0.9; }
        
        /* --- 业务服务板块 --- */
        .services { background: #fff; }
        .section-title { margin-bottom: 60px; }
        .section-title h2 { font-size: 2rem; position: relative; display: inline-block; }
        .section-title h2::after { content: ''; display: block; width: 50px; height: 3px; background: #007BFF; margin: 10px auto 0; }
        
        .service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .service-card {
            background: #fff;
            padding: 40px 30px;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            transition: transform 0.3s ease;
            border: 1px solid #eee;
            text-align: center;
        }
        .service-card:hover { transform: translateY(-10px); border-color: #007BFF; }
        .service-icon { font-size: 40px; color: #007BFF; margin-bottom: 20px; }
        .service-card h3 { font-size: 1.4rem; }
        .service-card p { color: #666; font-size: 0.95rem; }

        /* --- 优势/关于我们 --- */
        .about { background: #f4f7f6; }
        .about-content { display: flex; align-items: center; gap: 50px; flex-wrap: wrap; }
        .about-text { flex: 1; }
        .about-image { flex: 1; }
        .about-image img { width: 100%; border-radius: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
        .feature-list li { margin-bottom: 15px; }
        .feature-list i { color: #28a745; margin-right: 10px; }

        /* --- 联系方式 --- */
        .contact { background: #2c3e50; color: #fff; }
        .contact h2 { color: #fff; }
        .contact-info { display: flex; justify-content: center; gap: 50px; flex-wrap: wrap; margin-top: 40px; }
        .contact-item { text-align: center; }
        .contact-item i { font-size: 24px; margin-bottom: 15px; color: #007BFF; }
        
        /* --- 页脚 --- */
        footer { background: #1a252f; color: #7f8c8d; text-align: center; padding: 20px 0; font-size: 0.9rem; }

        /* --- 响应式适配 --- */
        @media (max-width: 768px) {
            /* .nav-links { display: none; } 移动端简化隐藏菜单 */
            .hero h1 { font-size: 1.8rem; }
            .service-grid { grid-template-columns: 1fr; }
            .about-content { flex-direction: column; }
        }
        
        /* --- 弹窗遮罩层 --- */
        .modal-overlay {
            display: none; /* 默认隐藏 */
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5); /* 半透明黑色背景 */
            z-index: 1000; /* 保证在最上层 */
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        /* 激活状态：显示并淡入 */
        .modal-overlay.active {
            display: flex;
            opacity: 1;
        }

        /* --- 弹窗主体 --- */
        .modal-content {
            background-color: #fff;
            padding: 30px;
            border-radius: 10px;
            width: 90%; /* 移动端宽度 */
            max-width: 450px; /* 桌面端最大宽度 */
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
            position: relative;
            box-sizing: border-box;
            animation: slideDown 0.3s ease-out;
        }

        /* 弹窗动画 */
        @keyframes slideDown {
            from { transform: translateY(-50px); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }

        /* 关闭按钮 */
        .close-btn {
            position: absolute;
            top: 10px;
            right: 15px;
            font-size: 24px;
            color: #aaa;
            cursor: pointer;
            transition: color 0.2s;
        }
        .close-btn:hover {
            color: #333;
        }

        /* 标题 */
        .modal-title {
            text-align: center;
            margin-bottom: 20px;
            color: #333;
            font-size: 22px;
        }

        /* --- 表单样式 --- */
        .form-group {
            margin-bottom: 15px;
        }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            color: #555;
            font-weight: bold;
            font-size: 14px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            box-sizing: border-box; /* 关键：防止padding撑大宽度 */
            font-size: 14px;
            transition: border-color 0.3s;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: #007BFF;
            outline: none;
        }

        .form-group textarea {
            resize: vertical; /* 允许垂直调整大小 */
            min-height: 80px;
        }

        /* 提交按钮 */
        .submit-btn {
            width: 100%;
            padding: 12px;
            background-color: #007BFF;
            color: white;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            cursor: pointer;
            transition: background-color 0.3s;
        }

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

        /* --- 响应式调整 --- */
        @media (max-width: 480px) {
            .modal-content {
                padding: 20px;
                width: 85%;
            }
            .modal-title {
                font-size: 18px;
            }
        }
		
		
		
		
		
        /* --- 资讯列表页核心样式 --- */
        
        /* 1. 页面标题区 */
        .page-header {
            background-color: #f4f4f4;
            padding: 150px 0 40px; /* 顶部padding较大，防止被固定导航栏遮挡 */
            text-align: center;
            border-bottom: 1px solid #eaeaea;
        }
        .page-header h1 { font-size: 32px; margin-bottom: 10px; color: #2c3e50; }
        .page-header p { color: #7f8c8d; }

        /* 2. 文章列表网格 */
        .news-grid {
            display: grid;
            /* 响应式核心：自动填充，最小宽度300px */
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        /* 3. 文章卡片 */
        .news-card {
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }

        /* 图片区域 */
        .news-image {
            width: 100%;
            height: 200px;
            background-color: #e0e0e0; /* 占位色 */
            overflow: hidden;
        }
        .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover; /* 保持图片比例填充 */
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-image img { transform: scale(1.1); }

        /* 内容区域 */
        .news-content { padding: 20px; flex: 1; display: flex; flex-direction: column; }
        .news-date { font-size: 12px; color: #999; margin-bottom: 8px; display: flex; align-items: center; }
        .news-date i { margin-right: 5px; color: #007BFF; }
        .news-title { font-size: 18px; margin-bottom: 10px; color: #333; line-height: 1.4; }
        .news-excerpt { font-size: 14px; color: #666; margin-bottom: 20px; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
        
        /* 阅读更多链接 */
        .read-more {
            color: #007BFF;
            font-weight: bold;
            font-size: 14px;
            align-self: flex-start;
            transition: color 0.2s;
        }
        .read-more:hover { color: #0056b3; }
        .read-more i { margin-left: 4px; transition: transform 0.2s; }
        .read-more:hover i { transform: translateX(4px); }

        /* 4. 分页样式 */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 50px;
        }
        .pagination a {
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 4px;
            color: #555;
            transition: all 0.3s;
        }
        .pagination a:hover, .pagination a.active {
            background-color: #007BFF;
            color: #fff;
            border-color: #007BFF;
        }
		
		
		       /* --- 文章内容页核心样式 --- */
        
        /* 面包屑导航 */
        .breadcrumb {
            padding: 150px 0 20px; /* 顶部留白防止被固定导航遮挡 */
            background-color: #f8f9fa;
            border-bottom: 1px solid #e9ecef;
            margin-bottom: 40px;
        }
        .breadcrumb a { color: #6c757d; font-size: 14px; }
        .breadcrumb a:hover { color: #007BFF; }
        .breadcrumb i { margin: 0 8px; color: #dee2e6; }

        /* 文章主体布局 */
        .article-wrapper {
            display: flex;
            gap: 40px;
            margin-bottom: 60px;
        }
        
        /* 左侧：文章内容 */
        .article-main { flex: 3; background: #fff; padding: 40px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        
        /* 文章标题区 */
        .article-header { margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid #eee; }
        .article-title { font-size: 28px; color: #2c3e50; margin-bottom: 15px; line-height: 1.4; }
        .article-meta { color: #999; font-size: 14px; }
        .article-meta span { margin-right: 15px; }
        .article-meta i { margin-right: 5px; color: #007BFF; }

        /* 文章正文排版 */
        .article-content { font-size: 16px; color: #444; line-height: 1.8; }
        .article-content h2 { margin: 30px 0 15px; color: #333; font-size: 22px; border-left: 4px solid #007BFF; padding-left: 10px; }
        .article-content p { margin-bottom: 20px; }
        .article-content img { border-radius: 6px; margin: 20px 0; box-shadow: 0 4px 10px rgba(0,0,0,0.1);width:100%; }
        .article-content ul { list-style-type: disc; padding-left: 20px; margin-bottom: 20px; }
        .article-content li { margin-bottom: 10px; }

        /* 右侧：侧边栏 */
        .article-sidebar { flex: 1; }
        
        /* 联系卡片 */
        .contact-card {
            background: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            text-align: center;
            position: sticky; /* 滚动时吸附在顶部 */
            top: 90px; /* 距离顶部导航栏的距离 */
        }
        .contact-card h3 { margin-bottom: 15px; color: #333; }
        .contact-card p { margin-bottom: 20px; color: #666; font-size: 14px; }
        .contact-card .btn { display: block; width: 100%; }

        /* 上一篇/下一篇导航 */
        .post-navigation {
            display: flex;
            justify-content: space-between;
            padding: 20px 0;
            border-top: 1px solid #eee;
            margin-top: 40px;
        }
        .post-nav-item { flex: 1; max-width: 45%; }
        .post-nav-item.next { text-align: right; }
        .post-nav-label { font-size: 12px; color: #999; margin-bottom: 5px; display: block; }
        .post-nav-title { font-size: 16px; color: #333; font-weight: bold; transition: color 0.3s; }
        .post-nav-item:hover .post-nav-title { color: #007BFF; }


        /* --- 响应式适配 --- */
        @media (max-width: 768px) {
            .hamburger { display: block; z-index: 1001; }
            .nav-links {
                position: fixed; top: 0; left: -100%; width: 70%; height: 100vh;
                background: #fff; flex-direction: column; justify-content: center;
                box-shadow: 2px 0 5px rgba(0,0,0,0.1); transition: left 0.3s;
            }
            .nav-links.active { left: 0; }
            nav > .btn { display: none; }

            .article-wrapper { flex-direction: column; } /* 侧边栏掉到下方 */
            .article-main { padding: 20px; }
            .contact-card { position: static; margin-top: 20px; } /* 取消吸附 */
            .post-navigation { flex-direction: column; gap: 20px; }
            .post-nav-item { max-width: 100%; text-align: left !important; }
        }