/**nav**/
.ly_nav {
	width: 100%;
	height: 50px;
background:#3172ab;
	margin: 0 auto;
	padding: 0;
	position: relative;
}




.nav {
	width: 1400px;
	height: 50px;
	margin: 0 auto;
}
.nav_item {
	float: left;
	position: relative;
}
.nav_item > a {
	display: block;
	padding: 0 20px;
                font-weight: 600;
	line-height: 50px;
	font-size: 18px;
	color: #ffffff;
	-webkit-transition: all .4s;
	transition: all .4s;
}


.nav_item > a:hover, .nav_item > a.navon {
	height: 50px;
	color: #ffffff;
                background:#ff9900;
	font-weight: bold;
	border-bottom: 0px solid #ea1a1a;
}
.menu_open {
	display: none;
}
.nav_item_open {
	width: 170px;
	height: auto;
	position: absolute;
	left: 0;
	top: 100%;
	z-index: 10;
	box-shadow: 0 4px 8px 0 rgba(0, 12, 49, 0.1);
	background: rgba(255, 255, 255, 0.8);
	border-radius: 0 0 2px 2px;
	opacity: 0;
	visibility: hidden;
	-webkit-transform: translateY(34px);
	transform: translateY(34px);
	-webkit-transition: all .4s;
	transition: all .4s;
	overflow: hidden;
}
.nav_item:hover .nav_item_open {
	visibility: visible;
	opacity: 1;
	-webkit-transform: translateY(0px);
	transform: translateY(0px);
}
.subopen {
	display: none;
}
.nav_item2 {
	width: 100%;
	line-height: 40px;
}
.nav_item2 a {
	display: block;
	padding: 0 10px;
	color: #333;
	font-size: 16px;
	white-space: nowrap;
	text-align: center;
}
.nav_item2:hover a {
	background: #ff9900;
	color: #fff;
}






.nav_item3 {
	width: 100%;
	line-height: 30px;
}
.nav_item3 a {
	display: block;
	padding: 0 10px;
	color: #333;
	font-size: 14px;
	white-space: nowrap;
	text-align: center;
}
.nav_item3:hover a {
	background: #ff9900;
	color: #fff;
}









.hcover {
	display: none;
}