.body_left{
    width:280px;
    
    display: inline-block;
    vertical-align: top;
    background:#333951;
    position: relative;
    font-size: 18px;
    color: #fff;
}


.body_left_list{
    width: 100%;
    min-height: 1rem;
    position: relative;
}
.body_left_list >li{
    width: 100%;
    min-height: 1px;
    overflow: hidden;
    border-bottom: 1px solid #333951;
    transition:all 0.5s;
    max-height: 1500px;
}
.body_left_list >li >label{
    width: 100%;
    height: 40px;
    line-height: 40px;
    position: relative;
    color: #fff;
    font-size:16px;
    background: #292e41;
    display: block;
}
.body_left_list >li >label >span{
    padding: 0 20px;
    width: 230px;
    color: #fff;
    font-size:16px;
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.body_left_list >li >label >a{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
.body_left_list >li >label >i{
    position: absolute;
    top: 0;
    right:25px;
    font-size: 11px;
}
.body_left_list >li >ul{
    width: 100%;
    min-height: 1px;
    position: relative;
}
.body_left_list >li >ul >li{
    width: 100%;
    max-height: 50px;
    overflow: hidden;
    transition: all 0.5s;
}
.body_left_list >li >ul >li:hover{
    max-height: calc(200 * 8px);
}
.body_left_list >li >ul >li >label{
    width: 100%;
    height: 50px;
    background:#333951;
    line-height: 50px;
    position: relative;
    transition: all 0.5s;
    display: block;
}
.body_left_list >li >ul >li:hover >label{
    background: #151b32;
    border-left: 6px solid #1D8FF0;
}
.body_left_list >li >ul >li:hover >label >i:nth-child(3){
    transform: rotate(90deg);
}
.body_left_list >li >ul >li >label >i:nth-child(1){
    padding-left:  30px;
    font-size: 20px;
    display: inline-block;
    vertical-align: top;
}
.body_left_list >li >ul >li >label >span{
   font-size: 15px;
    color: #a1a3ab;
    width: 170px;
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.body_left_list >li >ul >li >label >i:nth-child(3){
    position: absolute;
    top: 0;
    right:25px;
}
.body_left_list >li >ul >li >label >a{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
.body_left_list >li >ul >li >ul{
    width: 100%;
    min-height: 1px;
}
.body_left_list >li >ul >li >ul >li{
    max-height: 40px;
    transition: all 0.5s;
    overflow: hidden;
    position: relative;
}
.body_left_list >li >ul >li >ul >li:hover{
    max-height: calc(200 * 8px);
}
.body_left_list >li >ul >li >ul >li >label{
    width: 100%;
    height:40px;
    background: #3a3e50;
    position: relative;
    line-height: 40px;
    display: block;
    transition: all 0.5s;
}
.body_left_list >li >ul >li >ul >li:hover >label >span{
    color: #fff;
}
.body_left_list >li >ul >li >ul >li:hover ul{
    display: block;
}
.body_left_list >li >ul >li >ul >li:hover >label >i{
    color: #fff;
}
.body_left_list >li >ul >li >ul >li >label >span{
    font-size:14px;
    padding-left: 70px;
    color: #a1a3ab;
    width: 230px;
    display: block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.body_left_list >li >ul >li >ul >li >label >i{
    position: absolute;
    top: 0;
    right:25px;
    font-size: 14px;
}
.body_left_list >li >ul >li >ul >li >label >a{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 2px;
    left: 0;
    z-index: 1;
}
.body_left_list >li >ul >li >ul >li >ul{
    width: 200px;
    min-height: 1px;
    position: fixed;
    top:0;
    left: 200px;
    display: none;
}
.body_left_list >li >ul >li >ul >li >ul >li{
    width: 100%;
    min-height: 40px;
    position: relative;
    transition:all 0.5s;
    background: #fff;
}
.body_left_list >li >ul >li >ul >li >ul >li >label{
    display: block;
    position: relative;
    width: 100%;
    height: 30px;
}
.body_left_list >li >ul >li >ul >li >ul >li >label >span{
    width: 60%;
    height: 40px;
    font-size: 12px;
    line-height: 40px;
    padding-left: 20px;
    display: block;
    color: #999;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    transition:all 0.5s;
}
.body_left_list >li >ul >li >ul >li >ul >li >label >i{
    position: absolute;
    top: 13px;
    right:25px;
    font-size: 14px;
    color: #999;
}
.body_left_list >li >ul >li >ul >li >ul >li:hover >label >span{
    color: #1D8FF0;
}
.body_left_list >li >ul >li >ul >li >ul >li:hover >label >i{
    color: #1D8FF0;
}
.body_left_list >li >ul >li >ul >li >ul >li >label >a{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

@media (max-width: 768px) {
	
	.body_left{
		display:none;
		}
	
	}