a{
	text-decoration: none;
}
.main {
	padding: 30px 0;
	box-sizing: border-box;
	background-color: #f3f3f3;
}
.category {
	margin-bottom: 20px;
}
.category_box{
	float: left;
	width: 168px;
	display: none;
}
.side_banner .s_banner {
	display: block;
	margin-bottom: 7px;
}
.side_menu{
	position: fixed;
	left: 50%;
	margin-left: 546px;
	float: left;
	display: none;
}
.side_menu_num{
	width: 79px;
	height: 72px;
}
.side_menu_color{
	width: 79px;
	height: 62px;
}
.side_menu_mg{
	width: 79px;
	height: 62px;
	margin-top: 5px;
}
.content{
	position: relative;
	width: 1250px;
	margin: 0 auto;
}
.content::after{
	clear: both;
	display: block;
	content: '';
}
.con_box{	
	width: 943px;
	background-color: white;	
	padding:29px 61px 100px 61px;
	box-sizing: border-box;
	margin: 0 auto;
} 
.con_box_2{
	margin-left: 30px;
	width: 943px;
	background-color: white;
	float: left;
	box-sizing: border-box;
}
.con_box_4{
	margin-left: 30px;
	width: 943px;
	background-color: white;
	float: left;
	box-sizing: border-box;
	padding:29px 35px 100px 39px;	
}

.bold {
	font-weight: bold;
}