.banner4{
	background: url(../images/banner4.jpg) no-repeat center;
}
.banner4 img{
	width: 810px;
	display: block;
	margin:0 auto;
	margin-top: 55px;
}
.tc{
	width: 800px;
	display: block;
	margin:0 auto;
	margin-bottom: 40px;
}
.c1{
	background : #485157;
	width: 100%;
	max-width : 1920px;
	height : 440px;
	padding-top: 50px;
	margin:0 auto;
	margin-bottom: 40px;
}
.c1 img{
	width: 790px;
	display: block;
	margin:0 auto;
}
.c2{
	margin-bottom: 40px;
}
.c2 ul{
	width: 900px;
	height: 180px;
	background: url(../images/c3.svg) no-repeat center;
	background-size: 900px auto;
	margin:0 auto;
}
.c2 li{
	float: left;
	width: 430px;
	height: 90px;
	padding-left: 20px;
	font-size: 15px;
	color: #485157;
	line-height: 24px;
	margin-bottom: 35px;
}
.c3{
	width: 100%;
	max-width : 1920px;
	height : 300px;
	padding-top: 50px;
	background : rgba(72, 81, 87, 1);
	margin:0 auto;
	clear: left;
	margin-bottom: 40px;
}
.c4{
	background : #485157;
	width: 100%;
	max-width : 1920px;
	padding-top: 40px;
	margin:0 auto;
	margin-bottom: 40px;
}