/* 基础样式重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "Microsoft YaHei", Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
        }

        /* 页面结构 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* 头部样式 */
        header {
            background-color: #fff;
            padding: 20px 0;
            border-bottom: 1px solid #eee;
        }

        nav ul {
            list-style: none;
            display: flex;
            gap: 30px;
            justify-content: center;
        }

        nav a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
        }

        /* 主要内容区域 */
        main {
            margin-top: 30px;
            display: flex;
            gap: 30px;
        }

        .main-content {
            flex: 3;
            background: #fff;
            padding: 30px;
            border-radius: 5px;
        }

        .sidebar {
            flex: 1;
            background: #fff;
            padding: 20px;
            border-radius: 5px;
        }

        /* 文章样式 */
        article {
            margin-bottom: 40px;
        }

        h1 {
            font-size: 24px;
            margin-bottom: 20px;
            color: #222;
        }

        h2 {
            font-size: 20px;
            margin: 25px 0 15px;
            color: #333;
        }

        p {
            margin-bottom: 15px;
            font-size: 16px;
        }

        /* 侧边栏样式 */
        .related-links {
            margin-top: 20px;
        }

        .related-links li {
            margin-bottom: 10px;
        }

        /* 页脚样式 */
        footer {
            background-color: #333;
            color: #fff;
            padding: 40px 0;
            margin-top: 50px;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            main {
                flex-direction: column;
            }
            
            nav ul {
                flex-wrap: wrap;
                gap: 15px;
            }
        }
		        .container_a {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            align-items: flex-start;
            margin: 20px 0;
        }
        
        .img-container_a {
            flex: 0 0 300px;
            max-width: 100%;
        }
        
        .img-container_a img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            object-fit: cover;
        }
        
        .content {
            flex: 1;
            min-width: 300px;
        }
        
        @media (max-width: 768px) {
            .container_a {
                flex-direction: column;
            }
            .img-container_a {
                width: 100%;
                max-width: 500px;
                margin: 0 auto;
            }
        }
        .image-gallery {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        .gallery-item {
            position: relative;
            border: 1px solid #eee;
            border-radius: 8px;
            overflow: hidden;
        }
        .gallery-item a {
            text-decoration: none;
            color: #333;
        }
        .gallery-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .gallery-item:hover .gallery-img {
            transform: scale(1.03);
        }
        .text-link {
            display: block;
            padding: 12px;
            background: #f9f9f9;
            font-size: 14px;
        }
        @media (max-width: 768px) {
            .image-gallery {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .image-gallery {
                grid-template-columns: 1fr;
            }
        }
		a:link {
	text-decoration: none;
	color: #333;
}
a:visited {
	text-decoration: none;
}
a:hover {
	text-decoration: none;
}
a:active {
	text-decoration: none;
}