@charset "utf-8";
.about_tb{
	display:block;
	overflow:hidden;
	margin:auto;
	max-width:86%;
	width:auto;
	height:auto;
	margin-top:60px;
	margin-bottom:60px;
}
.about_tb img{
	max-width:100%;
	clear:both;
	height:auto;
	overflow:hidden;
}
.about_content{
	display:block;
	overflow:hidden;
	margin:auto;
	margin-top:40px;
}
.about_title{
	text-align:center;
	font-size:2.2rem;
	text-transform:uppercase;
}
@media (max-width:480px){
	.about_title{font-size:1.5rem;}
}
.about_title:after{
	content:"";
	background-color:#4cb032;
	height:5px;
	border-radius:2px;
	width:100px;
	display:block;
	margin:auto;
}

.about_list{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	white-space:nowrap;
	margin-top:50px;
	margin-bottom:50px;
}
.about_item{
	display:inline-block;
	width:25%;
	height:auto;
	overflow:hidden;
	
	margin-right:20px;
}
@media (max-width:480px){
	.about_item{
		width:50%;
	}
}
.about_pic{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	border:1px solid #ddd;
	position:relative;
	padding-bottom:150%;
}