* {
	margin: 0;
	padding: 0;
}

/*
1920/100 = 19.2   1vw = 19.2px
*/
html {
	position: relative;
}

body {
	background: #ffffff;
	font-family: "微软雅黑", sans-serif;
	font-size: 0.73vw;
	color: #000;
}

.contact {
	height: 5vw;
	position: absolute;
	right: 10vw;
	text-decoration: none;
	line-height: 5vw;
	color: #000000;
	font-size: 1vw;
}

.banner {
	width: 100%;
	height: auto;
	padding-top: 4.68vw;
}

@media screen and (max-width: 768px) {
	.banner {
		padding-top: 1rem;
	}

	.ad-chunk ul li {
		width: 100%;
		float: left;
		margin-bottom: 20px;
		list-style: none;
	}

	.type-chunk {
		width: 50%;
		float: left;
		margin-bottom: 5.208vw;
	}

	.type-chunk:nth-of-type(3) {
		clear: both;
	}

	.t-c-img {
		width: 30%;
		height: 10vw;
		margin: 0 auto;
	}

	.title p:nth-of-type(1) {
		font-size: 5vw;
		/*45px*/
		line-height: 10vw;
		/*78px*/
	}

	.title p:nth-of-type(2) {
		font-size: 3.5vw;
		/*36px*/
		color: #415285;
		line-height: 5vw;
		/*62px*/
	}
	.ad-chunk-con {
		width: 100%;
		height: 100%;
		font-size: 3vw;
		text-align: center;
		position: absolute;
		top: 0;
		left: 0;
		color: #fff;
		background: rgba(0, 0, 0, .4);
		display: flex;
		align-items: center;
		justify-content: center;
	}
	
	
	.t-c-tit {
		width: 100%;
		line-height: 4.16vw;
		text-align: center;
		color: #415285;
		font-size: 3vw;
		margin-top: 2vw;
	}
}

@media screen and (min-width: 768px) {

	.ch-top {
		width: 100%;
		height: 16vw%;
		overflow: hidden;
	}

	.ch-bottom {
		width: 100%;
		height: 20vw;
		overflow: hidden;
		margin-top: 0.5%;
	}

	.ch-top li {
		width: 33%;
		float: left;
		list-style: none;
	}

	.ch-top li:nth-of-type(1),
	.ch-top li:nth-of-type(2) {
		margin-right: 0.5%;
	}

	.ch-bottom li {
		width: 49.75%;
		height: 100%;
		float: left;
		list-style: none;
	}

	.ch-bottom li:nth-of-type(1) {
		margin-right: 0.5%;
	}

	.type-chunk {
		width: 25%;
		float: left;
		margin-bottom: 5.208vw;
	}

	.t-c-img {
		width: 30%;
		height: 5vw;
		margin: 0 auto;
	}

	.title p:nth-of-type(1) {
		font-size: 3vw;
		/*45px*/
		line-height: 5vw;
		color: #000000;
		/*78px*/
	}

	.title p:nth-of-type(2) {
		font-size: 1.2vw;
		/*36px*/
		color: #415285;
		/* line-height: 2vw; */
		/*62px*/
	}
	.ad-chunk-con {
		width: 100%;
		height: 100%;
		font-size: 1.35vw;
		text-align: center;
		position: absolute;
		top: 0;
		left: 0;
		color: #fff;
		background: rgba(0, 0, 0, .4);
		display: flex;
		align-items: center;
		justify-content: center;
	}
	
	.t-c-tit {
		width: 100%;
		line-height: 4.16vw;
		text-align: center;
		color: #415285;
		font-size: 1.5625vw;
		margin-top: 2vw;
	}

}

.banner img {
	width: 100%;
	height: 100%;
}

/*优势模块*/
.advantage {
	width: 70%;
	margin: 4.2vw auto 1vw auto;
}

.title {
	width: 100%;
}

.title p {
	width: 100%;
	text-align: center;
}



.ad-chunk {
	width: 100%;
	height: auto;
	margin-top: 2vw;
	overflow: hidden;
	/*534px*/
	position: relative;
}

.ad-chunk ul {
	width: 100%;
}


.ad-chunk ul li:hover>.ad-chunk-tit>.ad-img {
	transform: scale(1.2);
}

/* .ad-chunk ul li:nth-of-type(1),
.ad-chunk ul li:nth-of-type(2),
.ad-chunk ul li:nth-of-type(3){
    border-right: 0.052vw solid #f2f2f2;

} */

.ad-chunk-tit {
	width: 100%;
	height: 100%;
	margin: 0 auto;
	position: relative;
	overflow: hidden;
}

.model {
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, .5);
	position: absolute;
	top: -100%;
	left: 0;
	z-index: 2;
	color: #fff;
	transition: all .5s;
}

.model p {
	padding: 2vw;
	font-size: 0.8vw;
}

.ad-img {
	width: 100%;
	height: 100%;
	display: block;
	transition: all 0.6s;
	-ms-transition: all 0.8s;
}

/*服务特色*/
.banner2 {
	width: 100%;
	height: 20vw;
	background: url(../image/banner2.png) no-repeat;
	background-size: 100% 100%;
}

/*案例*/
.types-bg {
	width: 100%;
	height: auto;
	overflow: hidden;
	background-color: #f5f5f5f5;
}

.types {
	width: 80%;
	margin: 3.2vw auto;
	/*padding-bottom: 13.54vw;*/
	overflow: hidden;
}

.type-con {
	width: 100%;
	overflow: hidden;
	margin: 2vw auto;
}



.types-img {
	width: 100%;
	height: 100%;
}