<style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #f5f5f5;
            color: #333;
        }

        /* 头部区域 */
        .header {
            background-color: #1a1a1a;
            padding: 40px 0;
            text-align: center;
        }

        .header h1 {
            color: #fff;
            font-size: 36px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .header .subtitle {
            color: #ff4444;
            font-size: 14px;
        }

        /* 搜索区域 */
        .search-section {
            background-color: #fff;
            padding: 20px;
            margin: 20px auto;
            max-width: 1200px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .search-box {
            display: flex;
            align-items: center;
            border: 1px solid #e0e0e0;
            border-radius: 25px;
            padding: 10px 20px;
        }

        .search-box span {
            color: #666;
            margin-right: 10px;
            font-size: 16px;
        }

        .search-box input {
            border: none;
            outline: none;
            flex: 1;
            font-size: 14px;
            color: #333;
        }

        .search-box input::placeholder {
            color: #999;
        }

        /* 主内容区域 */
        .main-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 20px;
            padding: 0 20px;
        }

        /* 左侧导航 */
        .sidebar {
            width: 200px;
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            padding: 15px 0;
            height: fit-content;
            position: sticky;
            top: 20px;
        }

        .sidebar-item {
            padding: 12px 20px;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 14px;
            color: #666;
            border-left: 3px solid transparent;
        }

        .sidebar-item:hover {
            background-color: #f5f5f5;
            color: #1890ff;
        }

        .sidebar-item.active {
            background-color: #e6f7ff;
            color: #1890ff;
            border-left-color: #1890ff;
            font-weight: 500;
        }

        /* 右侧内容 */
        .content {
            flex: 1;
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            padding: 25px;
        }
		.sidebar-notice {
		    margin: 20px 15px 10px;
		    padding: 15px;
		    background-color: #fff8e1;
		    border: 1px solid #ffe082;
		    border-radius: 8px;
		    font-size: 12px;
		    color: #e65100;
		    line-height: 1.8;
		    text-align: center;
		}

        .section-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f0f0;
        }

        /* 软件列表 */
        .software-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .software-item {
            border-radius: 8px;
            border: 1px solid #f0f0f0;
            overflow: hidden;
            transition: all 0.3s;
        }

        .software-item:hover {
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
        }

        .software-item-header {
            display: flex;
            align-items: center;
            padding: 15px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .software-item-header:hover {
            background-color: #fafafa;
        }

        .software-item.expanded .software-item-header {
            background-color: #f5f5f5;
        }

        .software-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            font-weight: bold;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
			overflow: hidden;  /* 让图片圆角裁剪 */
        }
		.software-icon img {
			width: 100%;
			height: 100%;
			object-fit: cover;  /*图片填满容器 */
		}
        .software-info {
            flex: 1;
        }

        .software-name {
            font-size: 16px;
            font-weight: 500;
            color: #333;
            margin-bottom: 4px;
        }

        .software-desc {
            font-size: 13px;
            color: #999;
        }

        .software-arrow {
            color: #ccc;
            font-size: 18px;
            transition: transform 0.3s;
        }

        .software-item-header:hover .software-arrow {
            color: #1890ff;
        }

        .software-item.expanded .software-arrow {
            transform: rotate(90deg);
            color: #1890ff;
        }

        /* 版本列表 - 双列网格 */
        .version-list {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            background-color: #fafafa;
            border-top: 0px solid #f0f0f0;
            padding: 0 12px;
        }

        .software-item.expanded .version-list {
            max-height: 1000px;
            border-top-width: 1px;
            padding: 12px;
        }

        .version-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }

        .version-item {
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: space-between;
            padding: 12px;
            cursor: pointer;
            transition: all 0.2s;
            border: 1px solid #f0f0f0;
            border-radius: 6px;
            background-color: #fff;
        }

        .version-item:last-child {
            border-bottom: 1px solid #f0f0f0;
        }

        .version-item:hover {
            background-color: #e6f7ff;
            border-color: #91d5ff;
        }

        .version-left {
            flex: 1;
        }

        .version-name {
            font-size: 14px;
            color: #333;
            margin-bottom: 2px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .version-tag {
            display: inline-block;
            padding: 1px 8px;
            border-radius: 10px;
            font-size: 11px;
            font-weight: 500;
            color: #fff;
            background-color: #52c41a;
            flex-shrink: 0;
        }

        .version-size {
            font-size: 12px;
            color: #999;
        }

        .version-download {
            font-size: 12px;
            color: #1890ff;
            padding: 4px 12px;
            border: 1px solid #1890ff;
            border-radius: 4px;
            transition: all 0.2s;
            flex-shrink: 0;
        }

        .version-download:hover {
            background-color: #1890ff;
            color: #fff;
        }

        /* 页脚 */
        .footer {
            text-align: center;
            padding: 30px;
            color: #999;
            font-size: 13px;
            margin-top: 40px;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .main-content {
                flex-direction: column;
            }

            .software-list {
                grid-template-columns: 1fr;
            }

            .sidebar {
                width: 100%;
                position: static;
                display: flex;
                overflow-x: auto;
                padding: 10px;
            }

            .sidebar-item {
                white-space: nowrap;
                border-left: none;
                border-bottom: 3px solid transparent;
            }

            .sidebar-item.active {
                border-left: none;
                border-bottom-color: #1890ff;
            }

            .version-grid {
                grid-template-columns: 1fr;
            }

            .version-item {
                padding-left: 20px;
                flex-wrap: wrap;
                gap: 8px;
            }
        }
    </style>