   <style>
        /* 顶部导航 */
        .top-n {
            display: flex;
            justify-content: flex-end;
            padding: 12px 25px;
            background: #f7f9fc;
            margin: 0;
            gap: 6px;
            flex-wrap: wrap;
            border-top: 1px solid #eef2f7;
            border-bottom: 1px solid #eef2f7;
            width: 100%;
            font-family: Microsoft YaHei;
        }
        .top-n a {
            padding: 6px 20px;
            background: #ffffff;
            border: 1px solid #dce1e6;
            border-radius: 4px;
            text-decoration: none;
            color: #444;
            font-size: 15px;
            transition: all 0.3s ease;
            font-family: Microsoft YaHei;
        }
        .top-n a.active {
            background: #0078D4;
            color: #fff;
            border-color: #0078D4;
            font-weight: 500;
            font-family: Microsoft YaHei;
        }
        .top-n a:hover {
            background: #e6f2ff;
            border-color: #9cc9ff;
            color: #005b96;
            font-family: Microsoft YaHei;
        }

        /* 内容区域 */
        .content-inner {
            padding: 30px;
            text-align: center;
        }

        /* 标题样式 */
        h2 {
            font-size: 24px;
            color: #000;
            margin: 30px 0 15px;
            padding-bottom: 8px;
            text-align: center;
        }

        /* 网格布局 */
        .grid-box-2x3,
        .grid-box-3x3 {
            display: flex;
            flex-wrap: wrap;
            justify-content: center; /* 整体居中 */
            gap: 15px;
            margin: 15px 0;
            font-family: Microsoft YaHei;            
        }
        .grid-box-2x3 .grid-item,
        .grid-box-3x3 .grid-item {
            width: calc(33.333% - 10px); /* 强制一排3个 */
            min-width: 220px;
            max-width: 350px;
        }
        /* 卡片改为可点击链接 */
        .grid-item {
            border: 1px solid #ddd;
            border-radius: 4px;
            background: #fafafa;
            padding: 15px;
            text-align: center;
            font-size: 14px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #333;
            transition: 0.2s;
            justify-self: center;
            width: 100%;
            max-width: 400px;
        }
        .grid-item img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 4px;
            background: #eef5ff;
        }
        .grid-item:hover {
            border-color: #0078D4;
            background: #f0f7ff;
            transform: translateY(-2px);
        }

        /* 单图模块 */
        .single-img-box {
            border: 1px solid #ddd;
            border-radius: 4px;
            background: #fafafa;
            padding: 20px;
            text-align: center;
            margin:15px 0;
        }
        .single-img-box img{
            width:100%;
            max-height:480px;
            object-fit:cover;
            border-radius:4px;
            margin-bottom:12px;
        }

        /* 交付承诺 */
        .two-img-stack{
            border: 1px solid #ddd;
            border-radius: 4px;
            background: #fafafa;
            padding: 20px;
            text-align: center;
            margin:15px 0;
        }
        .two-img-stack img{
            width:100%;
            max-height:180px;
            object-fit:cover;
            border-radius:4px;
            margin:8px 0;
        }
        .note-txt{
            color:#666;
            font-size:15px;
            margin-top:12px;
            padding-top:10px;
            border-top:1px dashed #eee;
            font-weight: 700;
            font-family: Microsoft YaHei;
        }
    </style>