.nav {
	margin-top: 0;
}
.navwb {
	width: 100%;
	height: 90px;
	background: #0d4486;
}
.logo {
	z-index: 1000;
	position: relative;
}
.xlb {
	    position: absolute;
	    width: 10000px;
	    height: 0px;
	    left: -5000px;
	    background: #fff;
		display: none;
}


.yjdh li:hover .xlb{
	height: 340px;
}
.yjdh>li>a {
	font-weight: 500;
}
.logo {
	    width: 312px;
	    height: 100%;
	    background: #fff;
	    text-align: center;
	    display: block;
}
.logo img {
	display: inline-block;
}
@media screen and (max-width:1440px) {
	.logo {
		width: 300px;
	}
}
.xlb::after {
	content: "";
	position: absolute;
	height: 100%;
	width: 50%;
	left: 0;
	top: 0;
	z-index: 99;
	    background: #ececec;
}
.nav {
	width: calc(100% - 312px);
	    max-width: 1280px;
		z-index: 999;
		position: inherit;
		margin-left: auto;
		    margin-right: auto;
}
.xejdhxlwk {
	left: 312px;
	z-index: 999;
}
.nybnwz {
	left: 312px;
	margin-left: 0;
}

@media screen and (max-width:1600px) {
	.xejdhxlwk {
		width: 968px;
	}
	.xejdhzcwk {
		width: 290px;
		padding-left: 30px;
	}
	.xejdhycwk {
		width: 400px;
	}
	.xejdhycxmwk {
		width: 100%;
	}
}
@media screen and (max-width: 1440px) {
	.xejdhxlwk {
		left: 300px;
		width: 980px;
	}
	.yjdh>li {
		margin-left: 15px;
	}
}