.st-tree{position:relative;cursor:default;background:#fff;color:#606266}.st-tree__empty-block{position:relative;min-height:60px;text-align:center;width:100%;height:100%}.st-tree__empty-text{position:absolute;left:50%;top:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);color:#646673}.st-tree__drop-indicator{position:absolute;left:0;right:0;height:1px;background-color:#2987e6}.st-tree-node{white-space:nowrap;outline:0}.st-tree-node:focus>.st-tree-node__content{background-color:#f5f7fa}.st-tree-node.is-drop-inner>.st-tree-node__content .st-tree-node__label{background-color:#2987e6;color:#fff}.st-tree-node__content{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;height:26px;cursor:pointer}.st-tree-node__content>.st-tree-node__expand-icon{padding:6px}.st-tree-node__content>.st-checkbox{margin-right:8px}.st-tree-node__content:hover{background-color:#f5f7fa}.st-tree.is-dragging .st-tree-node__content{cursor:move}.st-tree.is-dragging .st-tree-node__content *{pointer-events:none}.st-tree.is-dragging.is-drop-not-allow .st-tree-node__content{cursor:not-allowed}.st-tree-node__expand-icon{cursor:pointer;color:#909399;font-size:12px;-webkit-transform:rotate(0);transform:rotate(0);-webkit-transition:-webkit-transform .3s ease-in-out;transition:-webkit-transform .3s ease-in-out;transition:transform .3s ease-in-out;transition:transform .3s ease-in-out,-webkit-transform .3s ease-in-out}.st-tree-node__expand-icon.expanded{-webkit-transform:rotate(90deg);transform:rotate(90deg)}.st-tree-node__expand-icon.is-leaf{color:transparent;cursor:default}.st-tree-node__label{font-size:14px}.st-tree-node__loading-icon{margin-right:8px;font-size:14px;color:#909399}.st-tree-node>.st-tree-node__children{overflow:hidden;background-color:transparent}.st-tree-node.is-expanded>.st-tree-node__children{display:block}.st-tree--highlight-current .st-tree-node.is-current>.st-tree-node__content{background-color:#eef5fd}