* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", sans-serif;
        }
        body {
            width: 100%;
            min-height: 100vh;
            margin: 0;
            padding: 60px 40px;
            color: #333;
            background-color: #fff;
        }
		a:link {
	color: #000000;
	text-decoration: none;
}
	a:visited {
		text-decoration: none;
		color: #000000;
	}
	a:hover {
		text-decoration: none;
		color: #F9B923;
	}
	a:active {
		text-decoration: none;
		color: #000000;
	}
        .header {
            max-width: 1400px;
            margin: 0 auto 40px;
            position: relative;
        }
        .header h1 {
            font-size: 36px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .header p {
            font-size: 16px;
            color: #666;
            line-height: 1.6;
            margin-bottom: 30px;
        }
        .header .filter {
            display: flex;
            gap: 30px;
            font-size: 16px;
            color: #333;
            position: relative;
        }
        .filter-item {
            position: relative;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease;
            font-size: 16px;
        }
        .filter-item:hover {
            color: #f5a623;
        }
        .filter-item.active {
            color: #f5a623;
        }
        .filter-item .arrow {
            transition: transform 0.3s ease;
        }
        .filter-item.active .arrow {
            transform: rotate(180deg);
        }
        /* 下拉菜单核心样式：固定高度+滚动 */
        .dropdown {
            position: absolute;
            top: 30px;
            left: 0;
            min-width: 320px;
            max-height: 360px; /* 刚好显示6个选项（每个约60px高） */
            overflow-y: auto; /* 超出部分滚动 */
            -webkit-overflow-scrolling: touch; /* 移动端手指滑动 */
            background: #fff;
            border: 1px solid #eee;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            border-radius: 4px;
            z-index: 1000;
            display: none;
            /* 滚动条样式 */
            scrollbar-width: thin;
            scrollbar-color: #ccc #f5f5f5;
        }
        /* 自定义滚动条（Chrome/Edge） */
        .dropdown::-webkit-scrollbar {
            width: 8px;
        }
        .dropdown::-webkit-scrollbar-track {
            background: #f5f5f5;
        }
        .dropdown::-webkit-scrollbar-thumb {
            background: #ccc;
            border-radius: 4px;
        }
        .dropdown::-webkit-scrollbar-thumb:hover {
            background: #aaa;
        }
        .dropdown.active {
            display: block;
        }
        .dropdown ul {
            list-style: none;
        }
        .dropdown li {
            border-bottom: 1px solid #f5f5f5;
            transition: all 0.2s ease;
        }
        .dropdown li:last-child {
            border-bottom: none;
        }
        /* 下拉菜单链接样式 */
        .dropdown li a {
            display: block; /* 让链接占满整个li，点击区域更大 */
            padding: 16px 20px;
            font-size: 16px;
            color: #333;
            text-decoration: none; /* 去掉下划线 */
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        /* 选中项样式：橙色背景+白色文字（和参考图一致） */
        .dropdown li.active a {
            background-color: #f5a623;
            color: #fff;
        }
        .dropdown li:hover:not(.active) a {
            background-color: #fafafa;
            color: #f5a623;
        }
        .header .big-text {
            position: absolute;
            right: 0;
            top: -20px;
            font-size: 180px;
            font-weight: 900;
            color: #f0f0f0;
            z-index: -1;
            line-height: 1;
            overflow: hidden;
        }
        .case-container {
            width: 100%;
            margin: 0 auto;
        }
        .case-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
            align-items: start;
        }
        .case-item {
            text-align: center;
            position: relative;
            transition: all 0.3s ease;
            z-index: 1;
            padding: 10px;
            border-radius: 8px;
            border: 1px solid #f0f0f0;
        }
        .case-item:hover {
            transform: scale(1.1);
            z-index: 2;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
            border-color: transparent;
        }
        .case-item .preview {
            margin-bottom: 20px;
            overflow: hidden;
            border-radius: 4px;
        }
        .case-item .preview img {
			aspect-ratio: 1/1;
            width: 100%;
            height: auto;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .case-item h3 {
            font-size: 20px;
            font-weight: 500;
            margin-bottom: 8px;
            text-align: left;
        }
        .case-item p {
            font-size: 14px;
            color: #666;
            text-align: left;
            line-height: 1.5;
        }
        .pagination {
            max-width: 1400px;
            margin: 60px auto 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            font-size: 16px;
            padding-bottom: 40px;
        }
        .pagination a {
            text-decoration: none;
            color: #666;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            cursor: pointer;
        }
        .pagination .page-btn {
            width: auto;
            height: auto;
            padding: 0 8px;
            border-radius: 4px;
        }
        .pagination .current {
            background: #f5a623;
            color: #fff;
            font-weight: 600;
        }
        .pagination a:hover:not(.current) {
            color: #f5a623;
        }
        /* 响应式适配 */
        @media (max-width: 768px) {
            body {
                padding: 40px 20px;
            }
            .header h1 {
                font-size: 28px;
            }
            .header .big-text {
                display: none;
            }
            .header .filter {
                flex-direction: column;
                gap: 15px;
                align-items: flex-start;
            }
            .dropdown {
                min-width: 280px;
                max-height: 300px;
            }
            .case-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .case-item h3 {
                font-size: 16px;
            }
            .case-item:hover {
                transform: scale(1.05);
            }
            .pagination {
                gap: 10px;
                font-size: 14px;
                flex-wrap: wrap;
            }
            .pagination a {
                width: 30px;
                height: 30px;
            }
        }