.l_tree{position:relative;padding-left:15px}.l_tree:before{content:"";border-left:1px dotted #999a9c;height:100%;position:absolute;left:30px;top:20px}.tree-box{overflow:hidden;padding-left:0}.tree-box:before{left:15px;height:calc(100% + 15px)}.l_tree_branch{position:relative;display:block;padding:5px 10px}.l_tree_branch:after{content:"";width:10px;height:0;border-bottom:1px dotted #999a9c;position:absolute;right:calc(100% - 30px);top:15px}.l_tree_branch p:after{content:" ";display:block;height:0;clear:both;visibility:hidden}.l_tree_branch .icon{float:left;margin-top:4px;color:#1890ff;border:1px solid #1890ff;width:12px;height:12px;display:inline-block;text-align:center;border-radius:50%;vertical-align:middle;margin-right:10px;line-height:9px;cursor:default;background:#fff}.l_tree_branch .icon-plus{cursor:pointer}.l_tree_branch .title{float:left;line-height:20px;background:#fff;cursor:pointer}.l_tree_branch .title.active{color:#00cba6}