a{
	
}


.about_top{
	background: url(../img/case/img_anliheji.png);
	width: 100%;
	height: 600px;
	position: relative;
	top:90px;
	background-size: cover;
}
.about_top_content{
	width: 1240px;
	/*margin: 0 auto;*/
	text-align: center;
	position: absolute;
	top: 50%;
	left:50%;
	transform: translate(-50%,-50%);
}
.about_top_title{
	font-size: 35px;
	color: #fff;
	font-family: Segoe UI;
    font-weight: bold;
   /* padding-top: 150px;*/
    
}
.about_title_en{
	font-size: 22px;
    font-family: Segoe UI;
    font-weight: bold;
    margin-top: 16px;
    color: #fff;
}

.content_about{
	width: 1240px;
	border: 1px solid rgba(223,223,223,1);
    box-shadow: 0px 3px 6px rgba(0,0,0,0.16);
    background: #FFFFFF;
	margin: 0 auto;
	position: relative;
	top:10px;
	border-radius: 20px;
	margin-bottom: 20px;
}
/*.content_about_nav{
	width: 1100px;
	padding-top: 31px;
	margin: 0 auto;
	display: flex;
	flex-direction: row;
	justify-content: space-between;
	border-bottom: 1px solid rgb(109, 108, 108);
}
.content_about_nav .span0{
	border-bottom: 4px solid rgba(255,0,0,1) !important;
	margin: 0 50px;
    padding-bottom: 28px;
    border-bottom: 4px solid transparent;
}
.content_about_nav span{
	display: inline-block;
}
.about_nav{
	flex: 1;
	padding-left: 50px;
	padding-right: 70px;
	display: flex;
	flex-direction: row;
	justify-content: space-between;
}
.about_nav_detail{
	padding-bottom: 28px;
}*/
.all_about{

	background: rgba(255,255,255,1);
    border: 1px solid rgba(223,223,223,1);
    box-shadow: 0px 3px 6px rgba(0,0,0,0.16);
    opacity: 1;
    border-radius: 20px;
    padding-bottom: 100px;
}
.about_detail{
	padding: 50px 50px;
	padding-bottom:285px ;

}
.detail_info{
    line-height: 30px;
    /*font-size: 25px;*/
    text-indent: 2em;
}
.about_up_back{

    position: relative;
    
}
.back235{
	width: 100%;
	margin-top: 50px;
    position: absolute;
    left: 0;
    top: -300px;
    background: rgba(235,233,233,1);
    height: 160px;
}
.back_all{
	width: 1240px;
	height: 160px;
	margin: 0 auto;

	display: flex;
	flex-direction: row;
	justify-content: space-around;
}
.back_all_item{
	display: -webkit-flex;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}
.p_item1{
	font-size: 50px;
    font-family: Segoe UI;
    font-weight: 400;
    line-height: 74px;
    color: rgba(112,112,112,1);
}
.p_item2{
	font-size: 17px;
    font-family: Segoe UI;
    font-weight: 400;
    line-height: 27px;
    color: rgba(112,112,112,1);
}
/*.address{
	background: url(../img/02-29-2707371354078621.png);
	position: absolute;
    left: 0px;
    top: -508px;
    z-index: 9;
    overflow: hidden;
    user-select: none;
    width: 1903px;
    height: 500px;
}*/