body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            overflow-x: hidden; /* 禁止水平滚动条出现 */
        }

        header {
            background-color: #333;
            color: #fff;
            padding: 10px;
            text-align: center;
        }

        nav {
            display: flex;
            justify-content: center;
            background-color: #444;
            padding: 10px;
        }

        nav a {
            color: #fff;
            text-decoration: none;
            padding: 10px 20px;
            margin: 0 10px;
            border-radius: 5px;
        }

        nav a:hover {
            background-color: #555;
        }

        .slideshow-container {
             max-width: 100%;
            margin: auto;
            position: relative;
            overflow: hidden;
        }

        .mySlides {
            width: 100%;
            max-height: 600px;
            text-align: center;
        }

        .mySlides img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-top-left-radius: 5px;
            border-top-right-radius: 5px;
        }

        .slide-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(0, 0, 0, 0.5);
            padding: 10px;
            color: white;
            text-shadow: 2px 2px 4px #000;
            box-sizing: border-box;
        }

        .slide-caption h2 {
            margin-bottom: 5px;
        }

        .slide-caption a {
            display: inline-block;
            background-color: #333;
            color: #fff;
            text-decoration: none;
            padding: 5px 10px;
            border-radius: 5px;
            margin-top: 5px;
        }

        .slide-caption a:hover {
            background-color: #555;
        }

        .prev, .next {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            font-size: 20px;
            font-weight: bold;
            color: white;
            background-color: #555;
            border: none;
            padding: 10px;
            cursor: pointer;
        }

        .next {
            right: 0;
        }

        .prev:hover, .next:hover {
            background-color: #333;
        }

        .categories {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
            padding: 20px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); /* 添加阴影效果 */
        }

        .category {
            flex: 0 1 calc(25% - 20px); /* 适应屏幕大小，每行四个 */
            text-align: center;
            padding: 20px;
            margin: 10px;
            box-sizing: border-box;
        }

        .category img {
            
            height: auto;
            border-top-left-radius: 5px;
            border-top-right-radius: 5px;
        }

        .category h2 {
            margin-bottom: 10px;
        }

        .category p {
            margin-bottom: 20px;
        }

        .category-link {
            display: block;
            background-color: #333;
            color: #fff;
            text-decoration: none;
            padding: 10px;
            border-radius: 5px;
        }

        .category-link:hover {
            background-color: #555;
        }
		
		footer {
		    background-color: #333;
		    color: #fff;
		    text-align: center;
		    padding: 10px;
		    position: fixed;
		    bottom: 0;
		    width: 100%;
		}