.ad_bg{background: url(../images/ad.jpg) no-repeat center 110px fixed;height: 450px;margin-top:110px; }
.ad_bg .text{position: relative;width: 800px;margin: 0 auto;color: #fff;font-size: 46px;padding-top: 175px;}
.ad_bg .text .left{float: left;}
.ad_bg .text .right{float: right;}
.ad_bg .text .left p:first-of-type{letter-spacing: 20px;} 
.ad_bg .text .left p:last-of-type{font-size: 16px;letter-spacing: 5px;}
.ad_bg .text .right p:first-of-type{letter-spacing: 20px;} 
.ad_bg .text .right p:last-of-type{font-size: 16px;letter-spacing: 7px;}
.ad_bg .text .right p span:nth-of-type(2){margin-left: 40px;}
.ad_bg .text .right p span:nth-of-type(3){margin-left: 34px;}
.patterns,.core{margin-top: 50px;text-align: center;}
.up p:first-of-type{font-size: 24px;color: #231814;}
.slide{border-top: 2px solid #e30013;width: 80px;margin: 0 auto;}
.up p:last-of-type{margin-top: 10px;font-size: 36px;color: #3e3a39;}
.up p span:nth-of-type(1){color: #e30013;}
.up p span:nth-of-type(2){display: inline-block;padding: 0px 4px;margin: 0 4px;background-color: #e30013;color: #fff;}
.img{width: 750px;margin: 0 auto;margin-top: 80px;}
.img1{width: 980px;}
.img img{width: 100%;}
@media(max-width: 1024px){
	.ad_bg{background-position:center;background-attachment:scroll;}
}
@media(max-width: 800px){
	.ad_bg .text,.img{width: 700px;}
	.ad_bg{margin-top: 95px;}
}
@media(max-width: 480px){
	.ad_bg{height: 330px;background-size: auto 330px;margin-top: 75px;}
	.ad_bg .text, .img{width: 90%;}
	.ad_bg .text{padding-top: 110px;font-size: 30px;}
	.ad_bg .text .left,.ad_bg .text .right{float: none;text-align: center;}
	.ad_bg .text .left p:first-of-type{letter-spacing: 12px;}
	.ad_bg .text .left p:last-of-type{font-size: 12px;letter-spacing: 3px;}
	.ad_bg .text .right p:first-of-type{letter-spacing: 12px;}
	.ad_bg .text .right p:last-of-type{font-size: 12px;}
	.ad_bg .text .right p span:nth-of-type(2){margin-left: 10px;}
	.ad_bg .text .right p span:nth-of-type(3){margin-left: 12px;}
	.up p:first-of-type{font-size: 16px;}
	.up p:last-of-type{font-size: 20px;}
	.img{margin-top: 30px;}
}