.main ul{
	width:1200px;
	width:calc(100%-170px);
	margin:0 106px 20px 64px;
	overflow: hidden;
}
.main ul:first-of-type{
	margin-top:35px;
}
.main ul:last-of-type{
	margin-bottom:50px;
}
.main ul li{
	width:178px;
	height:340px;
	float:left;
	margin-right:39px;
}
.main ul li:last-of-type{
	margin-right:0;
}
.main ul li img{
	display: block;
	margin-bottom:5px;
}
.main ul li a{
	display: block;
	width:79px;
	height:37px;
	background:url(../images/by_icon_04.png)no-repeat;
	color:#000;
	font-size:14px;
	text-align: center;
	line-height:44px;
	margin:auto;
}
.main ul li a:hover{
	background:url(../images/by_icon_05.png)no-repeat;
	color:#fff;
}