.nav{
				width: 100%;
				height: 40px;
				background:rgb(245,248,250);
				border-bottom:1px solid lightgray;
				border-top:1px solid lightgray;
			}
			.nav li{
				float: left;
				padding: 0px 15px;
				line-height: 40px;
				font-size: 16px;
				height: 40px;
			}
			.nav li:nth-child(1){
				background: white;
				border-top:2px solid orange;
			}
			.xiang tr{
				display: flex;justify-content:space-between;
				margin-bottom: 10px;
			}
			.xiang  p{
				margin: 10px 0px;
				font-size: 16px;
				padding:10px 15px;
				border-bottom:1px solid lightgray;
			}
			.lianxi {
				padding: 30px 0px 100px 0px;
			}
			.lianxi ul{
				width: 100px;
				text-align: center;
				float: left;
			}
			.lianxi ul li{
				padding: 10px 15px;
				border:1px solid lightgray;
				cursor: pointer;
			}
			.lianxi ul li:nth-child(1){
				border-bottom: none;
			}
			.right{
				width: 600px;
				float: left;
				margin-left: 30px;
			}