html,body{
	width: 100%;
	height: 100%;
}
.banner{
	
	height: 860px;
	background: url(../img/banner1.png) no-repeat;
	background-size: cover;
}
.slogan{
	color: #fff;
	margin-top: 380px;
}
.slogan h2{
	font-size: 50px;
	line-height: 100px;
	letter-spacing: 5px;
}
.slogan h3{
	font-size: 20px;
}
.four{
	width: 100%;
	height: 420px;
	margin: 10px auto;
	overflow: hidden;
}
.four li{
	width: 25%;
	height: 420px;
	float: left;
	overflow: hidden;
}
.four li img{
	/*width: 100%;*/
}
.adv{
	width: 1200px;
	margin: 20px auto 100px;
	padding-top: 30px;
}
.adv1{
	width: 1200px;
	height: 476px;
}
.adv1_left{
	width: 400px;
	height: 476px;
	float: left;
}
.adv1_left h2{
	font-size: 36px;
	color: #22194F;
	padding-top: 140px;
}
.adv1_right{
	width: 776px;
	height: 476px;
	float: right;
}
.adv2{
	width: 100%;
	height: 286px;
	/*margin-top: -70px;*/
	/*overflow: hidden;*/
	position: relative;
}
.adv2 .notBtn{
	position: absolute;
	left: 0;
	top: -70px;
}
.adv2 .btn_join{
	position: absolute;
	left: 530px;
	top: 216px;
}