.category-tree-filter-popper.el-popover.el-popper { padding: 0; }
.category-tree-filter-popper .el-cascader-panel { border: 0; }
.category-tree-filter-empty { min-width: 220px; padding: 24px 16px; color: var(--el-text-color-secondary); text-align: center; }
.category-tree-filter-arrow { width: 7px; height: 7px; margin: 0 4px 4px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor; transform: rotate(45deg); transition: transform .2s; }
.category-tree-filter-arrow.is-open { transform: rotate(225deg); margin-bottom: 0; }