html, body{
	padding: 0;
	margin: 0;
	min-width: 1024px;
}
.page_content{
	width: 100%;
	overflow: hidden;
}
.index_top{
	width: 100%;
	overflow: hidden;
	position: relative;
}
.top_nav{
    position: absolute;
    top: 0;
    left: 50%;
    width: 924px;
    margin-left: -382px;
}
.tnav_centent{
	width: 100%;
	overflow: hidden;
	max-width: 924px;
	margin: 0 auto;
}
.tnav_logo{
	float: left;
    width: 94px;
    height: 37px;
    margin-top: 13px;
}
.tnav_logo img{
	width: 100%;
}
.tnav_menu{
	width: auto;
	float: right;
}
.tnav_op{
	width: auto;
	line-height: 46px;
	font-size: 16px;
	padding: 0 20px;
	float: left;
	cursor: pointer;
}
.tnav_op:hover{
	color: #073BA1;
}
.index1{
	width: 100%;
}