* {
            box-sizing: content-box;
        }
        .main-content {
            width: calc(100% - 440px);
            float: left;
            background: #fff;
            padding: 20px;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
            margin-right: 20px;
        }
        .sidebar {
            width: 340px;
            float: right;
            position: sticky;
            top: 20px;
            background: #fff;
            padding: 20px;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }
        .clearfix::after {
            content: "";
            display: table;
            clear: both;
        }
        h1 {
            font-size: 24px;
            margin-bottom: 15px;
            color: #333;
        }
        .description {
            margin-bottom: 20px;
            color: #666;
            font-size: 14px;
        }
        .category-nav {
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .category-nav a {
            display: inline-block;
            margin-right: 15px;
            padding: 5px 10px;
            color: #666;
            text-decoration: none;
            font-size: 14px;
        }
        .category-nav a:hover, .category-nav a.active  {
            color: #ff6b6b;
            background: #f9f9f9;
            border-radius: 3px;
        }
        .image-list {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -10px;
        }
        .image-item {
            width: calc(25% - 20px);
            margin: 0 10px 20px;
            text-align: center;
        }
        .image-item a, .hot-image-item a {text-decoration: none;}
        .image-item img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            border-radius: 5px;
            margin-bottom: 5px;
            transition: transform 0.3s;
        }
        .image-item img:hover {
            transform: scale(1.03);
        }
        .image-item h3 {
            font-size: 14px;
            font-weight: normal;
            color: #333;
            margin: 0;
        }
        .pagination {
            text-align: center;
            margin-top: 10px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }
        .pagination a {
            display: inline-block;
            padding: 5px 10px;
            margin: 0 5px;
            color: #666;
            text-decoration: none;
            border: 1px solid #ddd;
            border-radius: 3px;
        }
        .pagination a:hover, .pagination a.active  {
            background: #ff6b6b;
            color: #fff;
            border-color: #ff6b6b;
        }
        .sidebar-title {
            font-size: 18px;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .hot-image-list {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -10px;
            margin-bottom: 20px;
        }
        .hot-image-item {
            width: calc(50% - 20px);
            margin: 0 10px 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed #eee;
        }
        .hot-image-item img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            border-radius: 3px;
            margin-bottom: 0;
        }
        .hot-image-item h4 {
            font-size: 14px;
            font-weight: normal;
            color: #333;
            margin: 5px 0;
        }
        .hot-image-item p {
            font-size: 12px;
            color: #999;
        }
        .ad-area {
            text-align: center;
            border-radius: 5px;
            margin-bottom: 20px;
        }
        .ad-area img {
            max-width: 100%;
            height: auto;
        }
        .ad-area p {
            font-size: 12px;
            color: #999;
            margin-top: 10px;
        }
 
        /* 响应式设计 */
        @media (max-width: 992px) {
            .main-content {
                width: auto;
                margin-right: 0;
                margin-bottom: 20px;
                float: none;
            }
            .sidebar {
                width: auto;
                float: none;
                position: static;
            }
            .image-item {
                width: calc(50% - 20px);
            }
        }
 
        @media (max-width: 576px) {
            .container {
                padding: 10px;
            }
            .main-content {
                width: auto;
                padding: 10px;
            }
            .sidebar {
        width: auto;
    }
            .image-item img {
            height: 200px;
        }
            .hot-image-item {
                width: calc(50% - 20px);
            }
        }