/* 帮助中心 左边栏start */
.help_business_nav {
	width:13%;
	float:left;
	text-align:center;
	border:1px solid #efefef;
}
.help_business_nav ul {
	margin:5px auto;
}
.help_business_nav li {
	width:100%;
	height:44px;
	line-height:44px;
	border-bottom:2px #fff solid;
	margin:0;
	text-align:center;
}
.help_business_nav li:hover,.help_business_nav li.active {
	border-bottom:1px #ff7e00 solid;
}
.help_business_nav a {
	display:block;
	width:100%;
	height:100%;
	padding:0;
}
.help_business_nav li:hover a,.help_business_nav li.active a {
	color:#ff7e00;
}
.help_about_nav ul {
	width:100%;
	overflow:hidden;
}
.help_about_nav li:last-child {
	width:160px;
}