@media (max-width: 1550px){
	header nav{
		margin-left: 5.5vw;
	}
	header .logo img{
		height: 6.4vw;
	}
	header nav .item .item-tit{
		padding: 0 14px;
		background-size: 9px auto;
	}
	header nav .item + .item{
		margin-left: 0;
	}
	#main .page2 .right .box{
	    padding: 0 20px;
	}
	#main .page2 .right .about-btn:after{
		left: -.2em;
	}
	#main .page2 .right .about-btn:before{
		width: 30px;
		left: -11px;
	}
	#main .page2 .right .item span{
		font-size: 50px;
	}
	#main .page3 .item .d1{
		font-size: 24px;
	}
	#main .page4 .slide-tap li .number{
		font-size: 130px;
	}
	#main .page4 .slide-tap li .item-text{
		width: 130px;
	}
	#main .page4 .slide-tap li .d1{
		font-size: 24px;
	}
	#main .page4 .slide-text .tit{
		font-size: 50px;
	}
	#main .page4 .slide-tap li .d2{
		font-size: 14px;
	}
	#main .page5 .left .desin-desc{
		font-size: 40px;
	}
}
@media (max-width: 1300px){
	.ad{
		height: 49.6vw;
	}
	#main .page4 .slide-tap li .number{
		font-size: 100px;
	}
	#main .page4 .slide-tap li .item-text{
		width: 100px;
	}
	#main .page4 .slide-text .tit{
		font-size: 40px;
	}
	#main .page4 .slide-tap li .d2{
		font-size: 12px;
	}
}