.acea-row{display:flex;flex-wrap:wrap;}
.acea-row.row-top{align-items:flex-start;}
.acea-row.row-middle{align-items:center;}
.acea-row.row-bottom{align-items:flex-end;}
.acea-row.row-left{justify-content:flex-start;}
.acea-row.row-center{justify-content:center;}
.acea-row.row-right{justify-content:flex-end;}
.acea-row.row-between{justify-content:space-between;} 
.acea-row.row-around{justify-content:space-around;}
.acea-row.row-column{flex-direction:column;}
.acea-row.row-column-between{flex-direction:column;justify-content:space-between;}
.acea-row.row-column-around{flex-direction:column;justify-content:space-around;}
.acea-row.row-center-wrapper{align-items:center;justify-content:center;}
.acea-row.row-between-wrapper{align-items:center;justify-content:space-between;}/* CSS Document */


*{
	padding: 0;
	margin: 0;
}
li{
	list-style: none;
}
a{
	text-decoration: none;
}

.body_content{
	margin: 0 auto;
	width: 73%;
}
.font-w{
	font-weight: bold;
}


.back_end{
	margin-top: 50px;
	border-top: 1px #e6e6e6 solid;
	width: 100%;
	text-align: center;
	padding: 20px 0;
}
.back_end .beian a{
	color: #000000;
}