*{
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            list-style: none;
            text-decoration: none;
            font-family: "Microsoft YaHei",sans-serif;
        }
        body{
            background: #f5f7fa;
            color: #333;
        }
        /* 头部外层通栏 */
        .header-wrap{
            width: 100%;
            background: #165DFF;
        }
        /* 头部版心 固定1200px */
        .header{
            width: 1200px;
            margin: 0 auto;
            padding: 25px 0px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo{
            color: #fff;
            font-size: 30px;
            font-weight: bold;
        }
        .header-tel{
            color: #fff;
            font-size: 20px;
			font-weight:bold;
        }

        /* 核心容器 固定1200px */
        .container{
            width: 1200px;
            margin: 20px auto;
            display: flex;
            gap: 20px;
        }

        /* 左侧导航 — 高度和banner一致 */
        .left-nav{
            width: 180px;
            height: 330px;
            background: #fff;
            border-radius: 6px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .left-nav a{
            display: flex;
            align-items: center;
            padding: 16px 20px;
            border-bottom: 1px solid #f0f0f0;
            transition: 0.3s;
            color: #333;
            flex: 1;
        }
        .left-nav a:hover{
            background: #165DFF;
            color: #fff;
        }

        /* 右侧内容 */
        .main-content{
            flex: 1;
        }

        /* banner轮播 等高导航 */
        .banner{
            width: 100%;
            height: 330px;
            border-radius: 6px;
            overflow: hidden;
            position: relative;
        }
        .banner-item{
            position: absolute;
            width: 100%;
            height: 100%;
            left: 0;
            top: 0;
            opacity: 0;
            transition: opacity 0.6s ease;
        }
        .banner-item.active{
            opacity: 1;
        }
        .banner-item img{
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .banner-dots{
            position: absolute;
            bottom: 15px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 8px;
        }
        .banner-dots span{
            width: 11px;
            height: 11px;
            border-radius: 50%;
            background: rgba(255,255,255,0.4);
            cursor: pointer;
        }
        .banner-dots span.active{
            background: #165DFF;
        }

        /* 产品区域 版心1200px */
        .pro-wrap{
            width: 1200px;
            margin: 0 auto;
            padding: 0px;
        }
        .title{
            font-size: 20px;
            margin: 25px 0 15px;
            border-left: 4px solid #165DFF;
            padding-left: 10px;
        }

        /* 产品 4列 */
        .goods-list{
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: 20px;
        }
        .goods-card{
            background: #fff;
            border-radius: 6px;
            overflow: hidden;
            transition: 0.3s;
        }
        .goods-card:hover{
            box-shadow: 0 5px 15px #e0e0e0;
            transform: translateY(-3px);
        }
        .goods-img{
            width: 100%;
            height: 220px;
        }
        .goods-text{
            padding: 15px;
        }
        .goods-name{
            font-size: 14px;
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .goods-price{
            color: #f56c6c;
            font-weight: bold;
            margin-bottom: 10px;
        }
        .more-btn{
            display: block;
            text-align: center;
            background: #165DFF;
            color: #fff;
            padding:5px 0;
            border-radius: 4px;
            font-size: 13px;
        }

        /* 底部纯黑色 */
        .footer{
            width: 100%;
            text-align: center;
            padding: 30px 0;
            color: #fff;
            font-size: 14px;
            margin-top: 40px;
            background: #000;
        }
		  /* 左侧导航栏 */
        .sidebar {
            width: 18%;
            background-color: #ffffff;
            border-right: 1px solid #eee;
            padding: 0px 0;
        }

        .sidebar ul {
            list-style: none;
        }

        .sidebar ul li a {
            display: block;
            padding: 15px 30px;
            color: #333;
            text-decoration: none;
            font-size: 16px;
            transition: all 0.3s ease;
        }

        .sidebar ul li a:hover,
        .sidebar ul li a.active {
            background-color: #007bff;
            color: #ffffff;
        }

        /* 右侧内容区 */
        .ny-content {
            flex: 1;
            padding: 30px;
            background-color: #ffffff;
			border: 1px solid #eee;
        }

        .ny-content h2 {
            font-size: 20px;
            color: #333;
            margin-bottom: 30px;
            font-weight: normal;
			font-weight:bold;
        }

        /* 产品网格布局 */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px 10px;
        }

        .product-item {
            text-align: center;
			border: 1px solid #fff;
			padding:15px;
        }

        .product-item img {
            max-width: 100%;
            height: 180px;
            margin-bottom: 5px;
        }

        .product-item p {
            font-size: 15px;
            color: #333;
			font-weight:bold;
        }
		.product-item:hover{border: 1px solid #eee;}
		
		.ny-content{ line-height:27px;}
		.ny-content .cont img{ max-width:100%;}
		
.ab_pages{clear:both;padding:20px 0;font-size:14px;text-align:center; overflow:hidden}
.ab_pages ul{display:inline-block;margin:0 auto;padding:0}
.ab_pages ul a{color:#555;display:block;padding: 10px;float: left;margin: 0 5px;font-size:16px; border:1px solid #F1F1F1;}
.ab_pages ul a.page-num-current{ background:#0065D1; color:#FFFFFF;}
.ab_pages ul a:hover{ background:#0065D1; color:#FFFFFF;}
		@media (max-width: 1200px) {
            .container {
                width: 100%;
            }
			.ny-content { width:100%;}
        }

        /* 手机自适应 */
        @media (max-width:768px){
		    
            .header,
            .container,
            .pro-wrap{
                width: 100%; padding:20px;
            }
			.logo{ font-size:20px;}
			.header-tel{ display:none;}
            .container{
                flex-direction: column;
                padding: 0 15px;
            }
			.product-item{ padding:5px;}
			.product-item img{ height:150px;}
            .left-nav{
                width: 100%;
                height: auto;
            }
            .goods-list{
                grid-template-columns: repeat(2,1fr);
            }
			.goods-img {
    width: 100%;
    height: 160px;
}
            .banner{
                height: 180px;
            }
			.left-nav a { padding:10px;}
			    .sidebar {
                width: 98%;
                border-right: none;
                border-bottom: 1px solid #eee;
            }

            .sidebar ul {
                display: flex;
                flex-wrap: wrap;
            }

            .sidebar ul li a {
                padding: 12px;
            }

            .product-grid {
                grid-template-columns: repeat(2, 1fr);
            }
			.ny-content { width:100%;}
        }