.box {
width: 100%;
display: -webkit-box;
display: -moz-box;
-webkit-box-orient: horizontal;
-moz-box-orient: horizontal;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
}
.box > * {
-webkit-box-flex: 1;
-moz-box-flex: 1;
}


.nav4{
	height:45px;
	border-bottom:#e7e7e7 solid 0.01rem;
	border-top:#e7e7e7 solid 0.01rem
}
.nav4 ul{
	/*position:fixed;*/
	z-index:200;
	top:0;
	left:0;
	width:100%
}
.nav4 li{
	/*border:1px solid rgba(190,190,190,1);*/
	height:45px;
	border-bottom:0;
	border-right:#e7e7e7 solid 0.01rem;
	position:relative;
	-webkit-box-shadow:inset 0 0 3px #fff;
	float:left;
	width:33.26%;
}
.nav4 li:last-child{
	
	border-right:0px solid rgba(190,190,190,1);
	
}
.nav4 li:nth-of-type(1){border-left;0;}
.nav4 li>a{
	font-size:15px;
	-webkit-box-sizing:border-box;
	box-sizing:border-box;
	/*border:1px solid #f9f8f9;*/
	-webkit-tap-highlight-color:rgba(0,0,0,0);
	border-bottom:0;
	display:block;
	line-height:45px;
	text-align:center;

}
.nav4 li>a:only-child span{
	background:none;
	padding-left:0;
}
.nav4 li>a.on + dl{
	display: block;
}
.nav4 li>a span{
	color: #666;
	display: inline-block;
	padding-left: 15px;
	background: url(imgs/1.svg#2) no-repeat 4px 18px;
	-webkit-background-size: 9px auto;
	/*text-shadow:0px 1px 0px #ffffff;*/
}
/***********************/
.nav4 dl{
	display:none;
	position:absolute;
	z-index:220;
	/*bottom:60px;
	left:50%;*/
	width:3.7rem;
	margin-left:-1.88rem;
	/*background:red;
	min-height:100px;*/
	
	/*border:1px solid #afaeaf;
	border-radius:5px;*/
	-webkit-box-shadow:inset 0 0 3px #fff;
	/*background:url(imgs/2.svg#3) no-repeat center center;*/
	-webkit-background-size:100%;
	background-size:100%;
	text-align:center;
}
/*, .nav4 dl:after*/
.nav4 dl:before{
	content:"";
	display:inline-block;
	position:absolute;
	z-index:240;
	bottom:0;
	left:50%;
	/*width:0;
	height:0;
	border:8px solid red;
	border-color:#afaeaf transparent transparent transparent;
	margin-left:-8px;
	margin-bottom:-16px;*/
	width:10px;
	height:8px;
	background: url(imgs/1.svg#2) no-repeat center -55px;
	-webkit-background-size: 10px auto;
	bottom: -7px;
	margin-left: -5px;
}
/*.nav4 dl:after{
	z-index:241;
	border-color:#e4e3e2 transparent transparent transparent;
	margin-bottom:-15px;
}*/
.nav4 dl{ background:#fff; margin:0px}
.nav4 dl dd{
	line-height:45px;
	text-align:center;
	 background:#fff;
	background-size:80% 1px;
	background-repeat:no-repeat;
	background-position: center bottom;
	/*background: url(imgs/3.svg#4) no-repeat center bottom;
	-webkit-background-size:100px 1px;*/
	padding:0px; margin:0px;
	border-bottom:#e7e7e7 solid 0.01rem
}
.nav4 dl dd:last-of-type{
	background:none;
}
.nav4 dl dd a{
	font-size: 0.24rem;
	display:block;
	color:#666;
	/*text-shadow:0px 1px 0px #ffffff;*/
	white-space: pre;
	overflow: hidden;
	text-overflow: ellipsis;
	text-decoration:none;
	text-align:center;
}
.nav4 .masklayer_div{
	display: none;
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 180;
	background: rgba(0,0,0,0);
}
.nav4 .masklayer_div.on{display: block;}