.banner{
	width: 100%;
	min-width: 1180px;
	text-align: center;
	overflow: hidden;
}
.banner img{
	display: block;
	width: 100%;
	max-width: 1920px;
	margin:0 auto;
}
#mainNav{
	width: 100%;
	min-width: 1180px;
	height: 70px;
	border-bottom: 1px solid #dddddd;
}
.mainNav{
	width: 1180px;
	margin: 0 auto;
}
.mainNav p{
	font-size: 18px;
	line-height: 68px;
	margin-left: -73px;
}
.mainNav p a{
	font-size: 18px;
	line-height: 68px;
	color: #333;
	display: inline-block;
	position: relative;
	margin-left: 73px;
}
.mainNav p a.on{
	color: #4E9B31;
	font-weight: bold;
	border-bottom: 3px solid #4E9B31;
}
.mainNav p a.on em{
	width: 12px;
	height: 7px;
	background: url(../../images/service/service4.png) no-repeat 0 0;
	position: absolute;
	top: 66px;
	left: 50%;
	margin-left: -6px;
}
.content {
	width: 100%;
	min-width: 1180px;
	text-align: center;
	padding: 30px 0 0;
	background: #f2f2f2;
}