.ct-container{width:var(--catalog-width, 260px);background:var(--theme-bg-card-solid);display:none;flex-direction:column;overflow:hidden;flex-shrink:0;position:relative;}.ct-container > .fluid-bg-canvas{position:absolute;inset:0;z-index:0;pointer-events:none;}.ct-header{padding:14px 12px 10px;display:flex;justify-content:space-between;align-items:center;flex-shrink:0;position:relative;z-index:1;}.ct-header-title{color:var(--theme-text-main);font-size:var(--theme-type-body);font-weight:600;display:flex;align-items:center;gap:8px;letter-spacing:0.2px;}.ct-header-actions{display:flex;gap:2px;}.ct-header-btn{background:transparent;border:none;color:var(--theme-text-main);cursor:pointer;font-size:var(--theme-type-label-md);width:28px;height:28px;border-radius:var(--theme-shape-sm);transition:all 0.2s cubic-bezier(0.4, 0, 0.2, 1);display:inline-flex;align-items:center;justify-content:center;position:relative;}.ct-header-btn:hover{background:var(--theme-accent-cyan-alpha-hover);color:var(--theme-primary-light);box-shadow:0 0 8px var(--theme-accent-cyan-alpha);}.ct-header-btn:active{transform:scale(0.92);}.ct-tree{flex:1;overflow-y:auto;padding:4px 8px 8px;position:relative;z-index:1;}.ct-tree::-webkit-scrollbar{width:6px;}.ct-tree::-webkit-scrollbar-track{background:transparent;}.ct-tree::-webkit-scrollbar-thumb{background:var(--theme-accent-cyan-alpha);border-radius:var(--theme-shape-sm);}.ct-tree::-webkit-scrollbar-thumb:hover{background:var(--theme-primary);}.ct-node{padding:6px 8px;border-radius:var(--theme-shape-sm);cursor:pointer;transition:background-color 0.2s ease, color 0.2s ease;display:flex;align-items:center;gap:7px;font-size:var(--theme-type-body);position:relative;color:var(--theme-text-main);margin:1px 0;}.ct-node:hover{background:var(--theme-accent-cyan-alpha);}.ct-node-selected{color:var(--theme-primary);}.ct-node-selected::before{content:'';position:absolute;left:0;top:14%;bottom:14%;width:3px;border-radius:var(--theme-shape-sm);background:var(--theme-primary);box-shadow:0 0 8px var(--theme-primary);}.ct-node-wrapper .ct-node.ct-node-selected .ct-node-icon{color:var(--theme-primary);}.ct-node-selected .ct-node-name{color:var(--theme-primary);font-weight:600;}.ct-node-icon{width:18px;color:var(--theme-text-dim);font-size:var(--theme-type-body);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;transition:color 0.2s ease, transform 0.2s ease;}.ct-node-name{flex:1;color:inherit;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:var(--theme-type-body);transition:color 0.2s ease;}.ct-node-count{color:var(--theme-text-muted);font-size:var(--theme-type-label-sm);flex-shrink:0;font-variant-numeric:tabular-nums;transition:color 0.2s ease;}.ct-children{padding-left:20px;margin-left:7px;border-left:1px solid var(--theme-border-light);}.ct-node-wrapper[data-type="catalog"][data-level="0"] > .ct-children{border-left-color:var(--theme-accent-cyan);}.ct-node-wrapper[data-type="catalog"][data-level="1"] > .ct-children{border-left-color:var(--theme-accent-purple);}.ct-node-wrapper[data-type="catalog"][data-level="2"] > .ct-children{border-left-color:var(--theme-accent-orange);}.ct-node-wrapper[data-type="catalog"][data-level="3"] > .ct-children{border-left-color:var(--theme-accent-pink);}.ct-node-wrapper[data-type="catalog"][data-level="4"] > .ct-children{border-left-color:var(--theme-accent-teal);}.ct-node-wrapper[data-type="catalog"][data-level="5"] > .ct-children{border-left-color:var(--theme-accent-indigo);}.ct-node-wrapper[data-type="catalog"][data-level="6"] > .ct-children, .ct-node-wrapper[data-type="catalog"][data-level="7"] > .ct-children{border-left-color:var(--theme-primary);}.ct-uncategorized-header{display:flex;align-items:center;gap:6px;padding:8px 12px;color:var(--theme-text-main);font-size:var(--theme-type-label-md);font-weight:500;border-bottom:1px solid var(--theme-border);}.ct-uncategorized-header i{color:var(--theme-accent-cyan);font-size:var(--theme-type-label-md);}.ct-uncategorized-list{padding:4px 0;}.sc-context-menu{position:fixed;background:var(--theme-bg-card);border:1px solid var(--theme-border);border-radius:var(--theme-shape-sm);padding:4px 0;z-index:500;min-width:140px;backdrop-filter:blur(var(--theme-blur-amount));box-shadow:var(--theme-shadow-glow);}.sc-context-menu-item{padding:8px 16px;cursor:pointer;display:flex;align-items:center;gap:8px;color:var(--theme-text-main);transition:all 0.2s;}.sc-context-menu-item:hover{background:var(--theme-accent-cyan-alpha);}.ct-node-note{padding-left:12px;}.ct-node-note .ct-node-name{font-size:var(--theme-type-label-md);color:var(--theme-text-dim);}.ct-node-note:hover .ct-node-name{color:var(--theme-text-main);}.ct-node-note .ct-node-icon{color:var(--theme-text-muted);font-size:var(--theme-type-label-md);}.ct-node-note.ct-node-selected .ct-node-name, .ct-node-note.ct-node-selected .ct-node-icon{color:var(--theme-primary);}.ct-header-title i{color:var(--theme-primary);margin-right:0;font-size:var(--theme-type-body);filter:drop-shadow(0 0 3px var(--theme-primary-glow));}.ct-header-btn i{color:inherit;margin-right:0;font-size:var(--theme-type-label-md);transition:color 0.2s ease;}.ct-node-icon i{color:inherit;}.ct-node-wrapper[data-type="catalog"][data-level="0"] > .ct-node > .ct-node-icon i{color:var(--theme-accent-cyan);}.ct-node-wrapper[data-type="catalog"][data-level="1"] > .ct-node > .ct-node-icon i{color:var(--theme-accent-purple);}.ct-node-wrapper[data-type="catalog"][data-level="2"] > .ct-node > .ct-node-icon i{color:var(--theme-accent-orange);}.ct-node-wrapper[data-type="catalog"][data-level="3"] > .ct-node > .ct-node-icon i{color:var(--theme-accent-pink);}.ct-node-wrapper[data-type="catalog"][data-level="4"] > .ct-node > .ct-node-icon i{color:var(--theme-accent-teal);}.ct-node-wrapper[data-type="catalog"][data-level="5"] > .ct-node > .ct-node-icon i{color:var(--theme-accent-indigo);}.ct-node-wrapper[data-type="catalog"][data-level="6"] > .ct-node > .ct-node-icon i, .ct-node-wrapper[data-type="catalog"][data-level="7"] > .ct-node > .ct-node-icon i{color:var(--theme-primary);}.sc-context-menu-item i{color:var(--theme-accent-cyan);width:16px;margin-right:8px;text-align:center;font-size:var(--theme-type-label-md);}.sc-context-menu-item:hover i{color:var(--theme-primary-light);}.ct-resizer{position:relative;width:12px;cursor:col-resize;background:transparent;transition:background 0.2s;z-index:10;flex-shrink:0;touch-action:none;}.ct-resizer::before{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%, -50%);width:3px;height:32px;border-radius:2px;background:var(--theme-border);transition:background 0.15s, box-shadow 0.15s;}.ct-resizer:hover::before, .ct-resizer.ct-resizer-active::before{background:var(--theme-primary);box-shadow:0 0 6px var(--theme-accent-cyan-alpha);}body.ct-dragging{user-select:none !important;cursor:col-resize !important;}.ct-node-wrapper[data-type="catalog"]:has(.ct-node-root){margin-bottom:10px;}.ct-node-wrapper[data-type="catalog"]:has(.ct-node-root):last-child{border-bottom:none;}.ct-node-root{padding:7px 10px !important;margin:3px 0 !important;}.ct-node-root .ct-node-icon i{color:var(--theme-primary) !important;}.ct-node-root .ct-node-name{font-weight:600 !important;color:var(--theme-text-main) !important;}.ct-node-root.ct-node-selected .ct-node-name{color:var(--theme-primary) !important;}.ct-node-root .ct-node-count{color:var(--theme-text-muted) !important;font-size:var(--theme-type-label-sm) !important;}.ct-node-read-badge{display:inline-block;margin-left:8px;padding:1px 6px;background:linear-gradient(135deg, var(--theme-error) 0%, var(--theme-warning) 100%);color:white;font-size:var(--theme-type-label-sm);font-weight:600;border-radius:var(--theme-shape-md);line-height:1.2;vertical-align:middle;box-shadow:0 1px 2px rgba(0, 0, 0, 0.1);backdrop-filter:blur(2px);transition:all 0.2s ease;}.ct-footer{padding:8px 10px;flex-shrink:0;position:relative;z-index:1;}.ct-search-row{display:flex;gap:6px;align-items:center;}.ct-search-wrapper{flex:1;position:relative;display:flex;align-items:center;}.ct-search-icon{position:absolute;left:10px;font-size:var(--theme-type-label-md);color:var(--theme-text-muted);pointer-events:none;}.ct-search-input{width:100%;padding:7px 10px 7px 30px;border:1px solid var(--theme-border);border-radius:999px;background:transparent;color:var(--theme-text-main);font-size:var(--theme-type-label-md);outline:none;transition:all 0.25s cubic-bezier(0.4, 0, 0.2, 1);box-sizing:border-box;}.ct-search-input:focus{border-color:var(--theme-primary);box-shadow:0 0 0 3px var(--theme-accent-cyan-alpha);background:transparent;}.ct-search-input::placeholder{color:var(--theme-text-muted);font-size:var(--theme-type-label-sm);}.ct-filter-btn{background:transparent;border:1px solid var(--theme-border);color:var(--theme-text-main);width:30px;height:30px;border-radius:999px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:var(--theme-type-body);transition:all 0.2s ease;flex-shrink:0;}.ct-filter-btn:hover{background:var(--theme-accent-cyan-alpha-hover);color:var(--theme-primary-light);border-color:var(--theme-primary);box-shadow:0 0 8px var(--theme-accent-cyan-alpha);}.ct-filter-btn.ct-filter-active{background:var(--theme-accent-cyan-alpha-hover);color:var(--theme-primary-light);border-color:var(--theme-primary);box-shadow:0 0 8px var(--theme-accent-cyan-alpha);}.ct-filter-hint{margin-top:4px;font-size:var(--theme-type-label-sm);color:var(--theme-text-muted);text-align:center;}.ct-filter-hint i{margin-right:3px;}.ct-filter-count{display:inline-block;margin-left:4px;padding:0 7px;background:var(--theme-accent-cyan-alpha);border-radius:var(--theme-shape-md);color:var(--theme-text-dim);font-variant-numeric:tabular-nums;line-height:1.6;}