@media screen and (max-width: 1366px) {
	.nav1 {
		width: 18%;
		height: 60px;
		line-height: 60px;
		font-weight: bold;
		font-size: 18px;
		float: left;
		background-image: url(../img/nav013.png);
		background-size: 100% 60px;
		background-repeat: no-repeat;
	}
	.nav1 a {
		float: right;
		color: #ffffff;
		margin-right: 5%;
	}
	.nav1 a i {
		float: left;
		display: block;
		height: 25px;
		width: 28px;
		margin-top: 16px;
		padding-right: 3px;
		background-image: url(../img/images/1_b.png);
		background-repeat: 100% 100%;
		background-repeat: no-repeat;
	}
	.nav2 {
		position: relative;
		width: 71%;
		height: 60px;
		line-height: 60px;
		font-weight: bold;
		font-size: 18px;
		float: right;
		background-image: url(../img/images/nav03.png);
		background-size: 100% 60px;
		background-repeat: no-repeat;
	}
	.nav3 {
		position: relative;
		width: 9.5%;
		height: 100%;
		float: left;
		margin-left: 0.8%;
		/*border: 1px solid black;*/
	}
	.nav3 img {
		width: 100%;
		position: absolute;
		height: 60px;
	}
	/*导航*/
	.dh_bg {
		position: relative;
		max-width: 800px;
		float: left;
		margin-left: 2%;
	}
	.two_nav_box{
	position: absolute;
	left: -32%;
	z-index: 1400;
	}
}

@media screen and (max-width: 1200px) {
	
	
	.header{
	    width: 1000px;
	    margin-left: 100px;
	}
	.nav{
		width: 1200px;
	    height: 60px;
	    margin-top: 15px;
	}
	.nav1{
		width: 15%;
		height: 60px;
		line-height: 60px;
		font-weight: bold;
		font-size: 18px;
		float: left;
		background-image: url(../img/nav012.png);
		background-size: 100% 60px;
		background-repeat: no-repeat;
	}
	.nav1 a {
		float: right;
		color: #ffffff;
		margin-right: 5%;
	}
	.nav1 a i {
		float: left;
		display: block;
		height: 25px;
		width: 28px;
		margin-top: 16px;
		padding-right: 3px;
		background-image: url(../img/images/1_b.png);
		background-repeat: 100% 100%;
		background-repeat: no-repeat;
	}
	.nav2 {
		position: relative;
		width: 74%;
		height: 60px;
		line-height: 60px;
		font-weight: bold;
		font-size: 18px;
		float:right;
		background-image: url(../img/images/nav03.png);
		background-size: 100% 60px;
		background-repeat: no-repeat;
	}
	.nav3 {
		position: relative;
		width: 9.5%;
		height: 100%;
		float: left;
		margin-left: 0.8%;
		/*border: 1px solid black;*/
	}
	.nav3 img {
		width: 100%;
		position: absolute;
		height: 60px;
	}
	/*导航*/
	.dh_bg {
		position: relative;
		max-width: 800px;
		float: left;
		margin-left: 2%;
	}
	.two_nav_box{
		position: absolute;
		left: -28%;
		z-index: 1400;
	}
	#flash {
		width: 1200px;
		height: 300px;
		position: relative;
		margin-top: 15px;
	}
	.content1{
		margin-left: 100px;
	}
	.content{
		margin-left: 100px;
		
	}
	.footer{
		width: 1200px;
	}
}
@media (min-width:1921px) and (max-width: 2560px) {
	.nav1{
		width: 30%;
		height: 60px;
		line-height: 60px;
		font-weight: bold;
		font-size: 18px;
		float: left;
		background-image: url(../img/nav013.png);
		background-size: 100% 60px;
		background-repeat: no-repeat;
	}
	.nav2 {
		position: relative;
		width: 58%;
		height: 60px;
		line-height: 60px;
		font-weight: bold;
		font-size: 18px;
		float:right;
		background-image: url(../img/images/nav03.png);
		background-size: 100% 60px;
		background-repeat: no-repeat;
	}
	.two_nav_box{
	position: absolute;
	left: -46%;
	z-index: 1400;
	}
	
}