.banner{
	width: 100%;
	height: 270px;
	background: url(../images/aboutUs-bg.jpg) no-repeat;
	background-size:100% 100% ;
	text-align: center;
	box-sizing: border-box;
	display: flex;
	align-items: center;
	justify-content: center;
}
.banner h4{
	font-size: 45px;color: #333;
	font-weight: 100;
	margin-bottom: 25px;
}
.banner h5{
	font-size: 19px;color: #666;
}

.navigate{
	width: 100%;
	height: 86px;
	border-bottom: 1px solid #e6e6e6;
	line-height: 86px;
	padding:0 3%;
	box-sizing: border-box;
	color: #b2b2b2;
}
.navigate .left{
	float: left;
	font-size: 16px;
}
.navigate .right{
	float: right;
	font-size: 20px
}
.main{
	width: 100%;
	text-align: center;
	overflow: hidden;
	background: #e9f6fc;;
	/*background-size:100% 100% ;*/
}
.main h5{
	font-size: 30px;
	color: #333;
	margin-top: 90px;
	margin-bottom: 10px;
}
.main h6{
	font-size: 20px;
	color: #333;
	font-weight: 100;
}
.main ul{
	display: inline-block;
	
}
.main ul li{
	width: 800px;
	height: 298px;
	border: 1px solid #3184fb;
	border-right:none ;
	border-left:none ;
	position: relative;
	border-bottom:none ;
}
.main ul li span{
	display: flex;
	position: absolute;
	width: 100%;
	height: 100%;
	z-index: 2;
	/*background: #e9f6fc;*/
	align-items: center;
	justify-content: center;
}
.main ul li span p b{
	font-weight: normal;
	font-size: 18px;
	color: #555;
}
.main ul li span p i{
	font-size: 44px;
	color: #3184FB;
}
.main ul li span p{
	font-size: 18px;
	color: #555555;
}
.main ul li:nth-child(2n+1)::after{
	content: url(../images/banyuan.png);
	display: inline-block;
	width: 300px;
	height: 300px;
	/*border: 1px solid #3184FB;
	border-radius:50% ;*/
	position: absolute;
	right: -221px;
	top: -1px;
	z-index: 1;
}
.main ul li:nth-child(2n)::after{
	content: url(../images/banyuanzuo.png);
	display: inline-block;
	width: 300px;
	height: 300px;
	/*border: 1px solid #3184FB;
	border-radius:50% ;*/
	position: absolute;
	left: -217px;
	top: -1px;
	z-index: 1;
}

.main ul li:last-child{
	border-bottom: 1px solid #3184FB;
}
.main ul li:last-child::before{
	content:'';
    background-image:url(../images/sun.png);
    background-size:100% 100%;
    position: absolute;
    width:210px;
    height:200px;
    z-index: 100;
    top: 195px;
	left: -195px;
	
}


.main ul li .cloud{
	width: 275px;
	height: 182px;
	background: url(../images/cloud-logo.png) no-repeat;
	position: absolute;
	top: -96px;
	left: -137px;
}
.main ul li .process{
	width: 120px;
	height: 120px;
	text-align: center;
	line-height: 120px;
	color: #fff;
	border-radius:50%;
	background: #3184FB;
	position: absolute;
	top: 90px;
}



.main ul li:nth-child(2n) .process{
	left: -200px;
}
.main ul li:nth-child(2n+1) .process{
	right: -200px;
}

.main ul li span p{
	width: 100%;
	display: flex;
	justify-content: space-around;
	align-items: center;
}


.main ul li:nth-child(2n) p i{
	float: left;
}
.main ul li:nth-child(2n) p b{
	float: right;
}
.main ul li:nth-child(2n+1) p i{
	float: right;
}
.main ul li:nth-child(2n+1) p b{
	float: left;
}

.main ul li:first-child p{
	display: block;
}
.main ul li:first-child p i{
	float: none;
}
.main ul li:first-child p b{
	float: none;
}

@media (min-width:820px) and (max-width: 1280px){
	.main div{
		width: 100%;
	}
	.main ul li{
		width: 400px;
	}
	.main ul li p{
		display: block!important; 
	}
	.main ul li p i,.main ul li p b{
		/*float: none !important;*/	
		width: 100%;
	}
	.main ul li:nth-child(2n+1) p i{
		margin-top: 15px;
	}
	
}
@media (min-width:768px) and (max-width: 820px){
	.main ul li::after,.main ul li::before{
		display: none!important;
	}
	.main ul li:last-child::before{
		display: block !important;
		content:'';
	    background-image:url(../images/sun.png);
	    background-size:100% 100%;
	    position: absolute;
	    width:130px;
	    height:130px;
	    z-index: 100;
	    top: 225px;
		left: -100px;
	}
	
}
@media screen and (max-width: 799px){
	/*.main ul li{
		width:400px;
	}*/
	
}
@media screen and (max-width: 819px){
	.main ul li::after,.main ul li::before{
		display: none!important;
	}
	.main ul li:last-child::before{
		display: block !important;
		content:'';
	    background-image:url(../images/sun.png);
	    background-size:100% 100%;
	    position: absolute;
	    width:150px;
	    height:150px;
	    z-index: 100;
	    top: 215px;
		left: -20px !important;
	}
	.banner{
		height: 30vw;
	}
	.banner h4{
		font-size: 5vw;
		margin-bottom: 1vw;
	}
	.banner h5{
		font-size: 3vw
	}
	.navigate .right{
		display: none;
	}
	.main ul{
		width: 90%;
	}
	.main ul li{
		width: 100%;
	}
	.main ul li{
		
	}
	.main ul li p{
		display: block;
	}
	.main ul li p i,.main ul li p b{
		/*float: none !important;*/	
		width: 100%;
	}
	.main ul li p i{
		/*float: none !important;*/	
		font-size: 8vw;
	}
	.main ul li span p b{
		font-size: 2vw
	}
	.main ul li span .process{
		left: 0 !important;
		top: -60px;
	}
	.main ul li span .cloud{
		top: -280px;
		left: 0;
	}
	.main .bigbig{
		top: 280px !important;
		padding-top: 300px !important;
	}
}