.banner{
	height:600px;
	background:url(../images/banner16.png) no-repeat;
	background-size:100% 100%;
	position:relative;
}
.banner .mask{
	width:100%;
	height:100%;
	background-color: rgba(27,27,27,0.4);
}
	.banner h2{
		position:absolute;
		left:0;
		right:0;
		margin:0 auto;
		top:240px;
		text-align: center;
		font-size: 50px;
		color:#fff;
		font-family: "苹方","常规";
	}
	.banner span{
		position:absolute;
		left:0;
		right:0;
		margin:0 auto;
		top:310px;
		text-align: center;
		font-size: 26px;
		color:#ebeaf0;
		font-family: "苹方","细体";
	}
	.center-box{
		padding-top:115px;
		padding-bottom:50px;
		background-color: #ececec;
	}
	.center{
		
	}
	.center ul:after{
		content:"";
		display: block;
		clear:both;
	}
	.center ul li{
		margin-bottom:74px;
	}
	.center ul li:after{
		content:"";
		display: block;
		clear:both;
	}
	.center ul li .left{
		width:49%;
		display: inline-block;
		float:left;
		position:relative;
	}
	.center ul li .right{
		width:51%;
		padding-top:113px;
		display: inline-block;
		float:right;
		position:relative;
	}
	.center ul li .right span{
		font-size: 24px;
		color:#343434;
	}
	.center ul li .right p{
		font-size: 18px;
		color:#666;
		margin-top:42px;
		line-height: 48px;
	}
	.center ul li:nth-of-type(2n) .right p{
		padding-right:20px;
	}
	.center ul li:nth-of-type(2n) .left{
		text-align: right;
		float:right;
	}
	.center ul li:nth-of-type(2n) .left img{
		margin-right:10px;
	}
	.center ul li .left span{
		position:absolute;
		display: block;
		width:370px;
		height:60px;
		text-align: center;
		bottom:-20px;
		right:90px;
		background-color: #fff;
		color:#ed9256;
		font-size: 24px;
		font-weight: bold;
		line-height: 60px;
		border-radius: 5px;
	}
	.center ul li:nth-of-type(2n) .left span{
		right:-40px;
	}
	.center ul li:nth-of-type(2n) .right{
		float:left;
	}
		@media screen and (max-width: 780px) {
		.banner{
		height:280px!important;
	}
	.banner h2{
		top:60px;
		font-size: 40px;
	}
	.banner span{
		top:120px;
		font-size:20px ;
	}
	.center{
		width:100%;
	}
	.center ul li .left{
		text-align: center;
		display: table!important;
		width:100%;
	}
	.center ul li .left img{
		vertical-align: middle;
	}
	.center ul li .right{
		width:100%;
		padding-left:30px;
		padding-right:30px;
		box-sizing: border-box;
	}
	.center ul li:nth-of-type(2n) .left {
    text-align: center;
}
.center ul li:nth-of-type(2n) .left span {
    right: 115px;
}
}
@media only screen and (max-width:480px ) {
	.banner{
			height:200px!important;
			}
			.banner h2{
				font-size: 30px;
			}
			.center-box{
				padding-top:0;
			}
			.center{
				margin-top:80px;
			}
	.center ul li .left img{
		width:100%;
	}
	.center ul li .right{
		padding-left:20px!important;
		padding-right:20px!important;
	}
	.center ul li .left span {
    right:50%;
    margin-right:-185px;
}
.center ul li:nth-of-type(2n) .left span {
    right: 50%;
    margin-right:-185px;
}
}