.tu3 {
	margin-top: 35px;
}
.tu3 li{
	width: 553px;
	height: 84px;
	margin-bottom: 20px;
}
@font-face {
	font-family:'SourceHanSerifCN';
	src:url(../fonts/SourceHanSerifCN-Heavy.otf);
	}
	
	.tu1 img{
		width: 230px;
		height: 157px;
		margin-top: 37px;
		margin-right: 8.2px;
	}
	.tu2 {
		margin-top: 47px;
	}
		
	.tu2 img{
		width: 258px;
		height: 258px;
		margin-right: 37px;
	}
	.tu4 {
		overflow: auto;
	}
	.tu4 ul li img{
		width: 100%;
		height: 100%;
	}
	.tu4 ul li{
		float: left;
		width: 258px;
		height: 222px;
		margin-right: 56px;
		margin-top: 50px;
	}
	.box3{
		overflow: auto;
		margin-top: 40px;
	}
	.box3 ul li{
		width: 118px;
		height: 126px;
		border: 0.0625rem solid #EFEFEF;
		float: left;
	}
	.box3 ul li img{
		margin-left: 42.5px;
		margin-top: 30px;
		
	}
	.box3 ul li p{
		text-align: center;
		margin-top: 25px;
		font-size: 18px;
	}
	.box4 img{
		width: 1200px;
	}