#div_center{
	width: 100%;
	height: 600px;
	background: #F5F5F5;
	margin-top: -20px;
	padding-top: 35px;
}

.pp-oft{
	width: 1200px;
	height: 550px;
}
.pp-oft h2{
	width: 1205px;
	position: absolute;
	margin-left: 0px;
	font-size: 24px;
	color: #243484;
	font-weight: normal;
	border-bottom: 1px solid #d3d4d7;
	line-height: 65px;
	background: url(../img/bgs.jpg) no-repeat left bottom;
}
.dreting{	
	position: absolute;
	margin-top: 65px;
	padding: 40px 0;
	width: 1250px;
	height: 132px;
	margin-left: -13px;
}
.dreting a{
	width: 288px;
	text-align: center;
	margin-left: 11px;
	line-height: 50px;
	border: 1px solid #ddd;
	display: inline-block;
	font-size: 16px;
	font-family: "Microsoft YaHei";
	color: #333;
}
#dreting_a{
	background: #141f55;
	color: white;
	border-color: #141f55;
}
.dreting a:hover{
	border-color: black;
}
.layt-os{
	position: absolute;
	margin-top: 200px;
	width: 1250px;
	height: 317px;
	margin-left: -15px;
}
.layt-os dl{
	width: 180px;
	text-align: center;
	float: left;
	margin-left: 15px;
	margin-right: 35px;
}
.layt-os dl dt{
	width: 180px;
	height: 232px;
	overflow: hidden;
	position: relative;
}
.layt-os dl dt span{
	display: block;
	width: 100%;
	height: 100%;
	left: 200px;
	top: 0;
	position: absolute;
	z-index: 1;
	background: url(../img/bg-col.png);
	transition: all .5s linear;
}
.layt-os dl dt a:hover span{
	left:0px;
}
.layt-os dl dt i{
	display: block;
	width: 47px;
	height: 47px;
	background: url(../img/search.png);
	position: absolute;
	top: 50%;
	left: 0px;
	margin-top: 0px;
	z-index: 2;
	transition: all .5s linear;
	opacity: 0;
}
.layt-os dl dt a:hover i{
	opacity: 1;
	left: 70px;
}
.layt-os  dl dd {
    line-height: 55px;
    font-size: 14px;
}