.category-tree{margin-top:.25rem}.category-tree .category-filter-item{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.4rem .5rem;border-radius:8px;cursor:pointer}.category-tree .category-filter-item:hover{background:var(--bg-light)}.category-tree .category-filter-item.active{background:var(--primary-color);color:#fff}.category-tree .category-filter-item.active .category-count{color:#e6fffa;opacity:.9}.ct-list{list-style:none;margin:.25rem 0 .25rem .5rem;padding-left:.5rem;border-left:1px dotted var(--border-color)}.ct-node{margin:.25rem 0}.ct-row{display:flex;align-items:center;gap:.25rem}.ct-toggle{width:1rem;height:1rem;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary);user-select:none}.ct-toggle:before{content:"\25be";font-size:12px;line-height:1}.ct-node.collapsed>.ct-row .ct-toggle:before{content:"\25b8"}.ct-toggle.ct-placeholder{visibility:hidden}.category-loading{color:var(--text-secondary);font-size:.9rem;padding:.25rem 0}