@media screen and (min-width: 1920px) {
	body:before{
	    content: '1800';
	}

}
@media screen and (max-width: 1950px) {
	body:before{
	    content: '1720';
	}
}
@media screen and (max-width: 1750px) {
	body:before{
	    content: '1580';
	}
}
@media screen and (max-width: 1600px) {
	body:before{
	    content: '1430';
	}
	
}	

@media screen and (max-width: 1450px) {
	body:before{
	    content: '1330';
	}
	
}

@media screen and (max-width: 1350px) {
	body:before{
	    content: '1230';
	}
	
}

@media screen and (max-width: 1250px) {
	body:before{
	    content: '1004';
	}
	
}

@media screen and (max-width: 1024px) {
	body:before{
	    content: '1024';
	}

}

@media screen and (max-width: 880px) {
	body:before{
	    content: '880';
	}
	
	.wapper{
		width: 100%;
	}
	header{
		padding: 16px;
	}
	header .logo img{
		height: 48px;
	}

	.pc{
		display: none;
	}
	.mobile{
		display: block;
	}

	.monav-btn{
	    cursor:pointer;
	    position: relative;
	    width:25px;
	    height:19px;
	    margin-top: -8px;
	}
	.monav-btn span{
	    width:25px;
	    height:2px;
	    display: block;
	    background: #000;
	    position: absolute;
	    transition:all .5s;
	}
	.monav-btn .s1{top:0px;}
	.monav-btn .s2{top:9px;}
	.monav-btn .s3{top:18px;}
	.monav-btn .s1.on{transform:rotate(45deg);
	           top:10px;
	}
	.monav-btn .s2.on{opacity: 0;}
	.monav-btn .s3.on{transform:rotate(-45deg);
	           top:10px;
	}


	.monav{
	    width: 100%;
	    height: calc(100vh - 58px);
	    background: rgba(255,255,255,0.9);
	    opacity: 0.98;
	    position: fixed;
	    top: 58px;
	    left: 0;
	    z-index: 999999;
	    padding: 15px 20px;
	    display: none;
	}
	.monav a{
	    display: inline-block;
	    width: 100%;
	    height: 56px;
	    line-height: 56px;
	    border-bottom: 1px #f5f5f5 solid;
	    font-size: 16px;
	    text-align: center;
	}
	.monav a.sel{
	    color: #4d9a29;
	}
}
@media screen and (max-width: 768px) {

}
@media screen and (max-width: 640px) {

}
@media screen and (max-width: 480px) {
	
}