@import "https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&family=JetBrains+Mono:wght@400;500;700&display=swap";.sidebar{background:var(--sidebar-bg);width:224px;min-width:224px;color:var(--text-on-dark);flex-direction:column;height:100vh;display:flex}.sidebar-header{padding:22px 18px 16px}.sidebar-header .logo{letter-spacing:-.02em;align-items:center;gap:9px;font-size:18px;font-weight:900;display:flex}.sidebar-header .logo-mark{color:#7dd3fc;filter:drop-shadow(0 0 6px #7dd3fc73);display:flex}.sidebar-header .logo-text{font-family:var(--font-mono);letter-spacing:.18em;background:linear-gradient(135deg,#e0f2fe 0%,#7dd3fc 50%,#38bdf8 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:17px;font-weight:700}.sidebar-header .subtitle{color:#78716c;letter-spacing:.14em;text-transform:uppercase;font-size:9px;font-family:var(--font-mono);margin-top:6px}.nav{flex:1;padding:6px 10px}.nav-item{border-radius:var(--radius-sm);cursor:pointer;color:#a8a29e;transition:all var(--duration-fast) var(--ease);align-items:center;gap:10px;margin-bottom:1px;padding:9px 12px;font-size:13px;font-weight:500;display:flex;position:relative}.nav-item:hover{background:var(--sidebar-hover);color:var(--text-on-dark);transform:translate(2px)}.nav-item.active{background:var(--sidebar-active);color:#fff;font-weight:600}.nav-item.active:before{content:"";width:3px;height:18px;animation:navIndicatorIn var(--duration) var(--ease);background:#7dd3fc;border-radius:2px;position:absolute;top:50%;left:-10px;transform:translateY(-50%)}@keyframes navIndicatorIn{0%{transform:translateY(-50%)scaleY(0)}to{transform:translateY(-50%)scaleY(1)}}.nav-item .icon{flex-shrink:0;justify-content:center;align-items:center;width:20px;display:flex}.nav-group{margin-bottom:2px}.nav-group-title{justify-content:flex-start}.nav-group-title span:not(.icon):not(.nav-group-arrow){flex:1}.nav-group-arrow{color:#78716c;transition:transform var(--duration) var(--ease);font-size:10px;transform:rotate(0)}.nav-group-arrow.expanded{transform:rotate(90deg)}.active-group>.nav-item{color:var(--text-on-dark)}.nav-sub-items{margin-bottom:4px;padding-left:14px}.nav-sub{color:#a8a29e;gap:8px;padding:7px 12px;font-size:12px}.nav-sub .icon{width:18px}.nav-sub.active{background:var(--sidebar-active);color:#fff}.nav-sub.active:before{content:"";background:#7dd3fc;border-radius:2px;width:3px;height:16px;position:absolute;top:50%;left:-2px;transform:translateY(-50%)}.sidebar-stats{border-top:1px solid #ffffff0f;padding:14px 18px;font-size:11px}.sidebar-stats .stat-row{color:#78716c;font-family:var(--font-mono);letter-spacing:.02em;justify-content:space-between;margin-bottom:4px;display:flex}.sidebar-stats .stat-row strong{color:var(--text-on-dark);font-weight:700}.kb-container{flex-direction:column;flex:1;display:flex;position:relative;overflow:hidden}.kb-chat-layout{flex-direction:row!important}.chat-history-bar{background:var(--bg-card);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:240px;display:flex}.chat-history-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.ch-title{color:var(--text-muted);align-items:center;gap:6px;font-size:12px;font-weight:700;display:flex}.ch-new-btn{border-radius:var(--radius-sm);background:var(--accent);color:#fff;cursor:pointer;width:26px;height:26px;transition:background var(--duration-fast) var(--ease);border:none;justify-content:center;align-items:center;display:flex}.ch-new-btn:hover{background:var(--accent-dark)}.chat-history-list{flex:1;padding:6px;overflow-y:auto}.ch-empty{text-align:center;color:var(--text-light);padding:30px 10px;font-size:12px}.conv-item{border-radius:var(--radius-sm);cursor:pointer;transition:all var(--duration-fast) var(--ease);border:1px solid #0000;align-items:center;gap:6px;margin-bottom:2px;padding:8px 10px;display:flex}.conv-item:hover{background:var(--bg-muted)}.conv-item.active{background:var(--accent-light);border-color:var(--accent)}.conv-item.drag-over{border-color:var(--accent);background:var(--accent-light);border-style:dashed}.conv-grip{color:var(--text-light);cursor:grab;opacity:0;transition:opacity var(--duration-fast) var(--ease);flex-shrink:0}.conv-item:hover .conv-grip{opacity:1}.conv-title-text{color:var(--text);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:12px;line-height:1.4;overflow:hidden}.conv-item.active .conv-title-text{color:var(--accent-dark);font-weight:600}.conv-actions{opacity:0;transition:opacity var(--duration-fast) var(--ease);gap:2px;display:flex}.conv-item:hover .conv-actions{opacity:1}.conv-action-btn{width:22px;height:22px;color:var(--text-muted);cursor:pointer;transition:all var(--duration-fast) var(--ease);background:0 0;border:none;border-radius:3px;justify-content:center;align-items:center;display:flex}.conv-action-btn:hover{background:var(--bg-card);color:var(--accent)}.conv-action-btn.danger:hover{color:var(--danger,#dc2626)}.conv-edit-input{border:1px solid var(--accent);border-radius:var(--radius-sm);font-size:12px;font-family:var(--font);color:var(--text);background:var(--bg-card);outline:none;flex:1;padding:4px 8px}.kb-chat-main{flex-direction:column;flex:1;min-width:0;display:flex;position:relative;overflow:hidden}.scroll-bottom-btn{z-index:20;border:1px solid var(--border);background:var(--bg-card);width:34px;height:34px;color:var(--text-muted);box-shadow:var(--shadow-md);cursor:pointer;animation:fadeIn .2s var(--ease);transition:all var(--duration-fast) var(--ease);border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;bottom:104px;right:28px}.scroll-bottom-btn:hover{color:var(--accent);border-color:var(--accent);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.msg-detail-hint{color:var(--text-light);cursor:pointer;background:0 0;padding:0;font-size:10px;font-weight:400}.msg-detail-hint:hover{color:var(--accent)}.detail-modal-overlay{z-index:1000;animation:fadeIn .15s var(--ease);background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.detail-modal{background:var(--bg-card);border-radius:var(--radius-lg);width:700px;max-width:90vw;max-height:80vh;animation:slideUp .2s var(--ease);flex-direction:column;display:flex;overflow:hidden;box-shadow:0 20px 60px #0003}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.detail-modal-header{border-bottom:1px solid var(--border);color:var(--text);justify-content:space-between;align-items:center;padding:14px 20px;font-size:14px;font-weight:700;display:flex}.detail-modal-close{cursor:pointer;color:var(--text-muted);border-radius:var(--radius-sm);background:0 0;border:none;padding:4px;display:flex}.detail-modal-close:hover{background:var(--bg-muted);color:var(--text)}.detail-modal-body{flex:1;padding:16px 20px;overflow-y:auto}.detail-section{margin-bottom:20px}.detail-section h4{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-size:12px;font-weight:700}.detail-code{background:var(--bg-muted);border:1px solid var(--border);border-radius:var(--radius);font-family:var(--font-mono);color:var(--text);white-space:pre-wrap;word-break:break-word;padding:14px;font-size:12px;line-height:1.7;overflow-x:auto}.chat-page-messages{flex:1;width:100%;max-width:800px;margin:0 auto;padding:20px 24px;overflow-y:auto}.chat-welcome{text-align:center;flex-direction:column;align-items:center;gap:14px;padding:50px 20px;display:flex}.chat-welcome>svg{color:var(--accent);opacity:.7;animation:3.2s ease-in-out infinite floatY}@keyframes floatY{50%{transform:translateY(-7px)}}.chat-welcome>p{color:var(--text);font-size:18px;font-weight:600}.chat-suggestions{flex-direction:column;gap:8px;width:100%;max-width:360px;margin-top:8px;display:flex}.chat-suggestion{border:1px solid var(--border);background:var(--bg-muted);border-radius:var(--radius);font-size:13px;font-family:var(--font);color:var(--text-muted);cursor:pointer;text-align:left;transition:all var(--duration-fast) var(--ease);animation:suggestionIn .4s var(--ease) backwards;padding:12px 16px}.chat-suggestion:first-child{animation-delay:50ms}.chat-suggestion:nth-child(2){animation-delay:.12s}.chat-suggestion:nth-child(3){animation-delay:.19s}@keyframes suggestionIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.chat-suggestion:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light);transform:translate(3px)}.chat-tip{color:var(--text-light);margin-top:16px;font-size:12px}.chat-page-input{border-top:1px solid var(--border);width:100%;max-width:800px;margin:0 auto;padding:10px 24px 16px}.kb-topbar{background:var(--bg-card);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;min-height:50px;padding:12px 24px;display:flex}.think-toggle{border:1px solid var(--border);background:var(--bg-card);font-size:12px;font-weight:600;font-family:var(--font);color:var(--text-muted);cursor:pointer;transition:all var(--duration-fast) var(--ease);border-radius:20px;align-items:center;gap:6px;padding:5px 12px;display:flex}.think-toggle:hover{border-color:var(--accent)}.think-toggle.active{color:var(--accent);border-color:var(--accent);background:var(--accent-light)}.think-switch{background:var(--text-light);width:28px;height:16px;transition:background var(--duration-fast) var(--ease);border-radius:8px;margin-left:2px;position:relative}.think-switch.on{background:var(--accent)}.think-switch-knob{width:12px;height:12px;transition:transform var(--duration-fast) var(--ease);background:#fff;border-radius:50%;position:absolute;top:2px;left:2px}.think-switch.on .think-switch-knob{transform:translate(12px)}.kb-topbar-left{align-items:center;gap:12px;display:flex}.kb-topbar-actions{align-items:center;gap:10px;display:flex}.note-sum-btn{border:1px solid var(--accent);background:var(--accent-light);font-size:12px;font-weight:600;font-family:var(--font);color:var(--accent-dark);cursor:pointer;transition:all var(--duration-fast) var(--ease);border-radius:20px;align-items:center;gap:6px;padding:5px 14px;display:flex}.note-sum-btn:hover:not(:disabled){background:var(--accent);color:#fff;transform:translateY(-1px)}.note-sum-btn:disabled{opacity:.45;cursor:not-allowed}.kb-topbar .header-title{align-items:center;gap:8px;font-size:16px;font-weight:600;display:flex}.kb-count{color:var(--text-muted);background:var(--bg-muted);border-radius:20px;padding:2px 10px;font-size:12px}.kb-search{background:var(--bg-muted);border:1px solid var(--border);width:240px;transition:all var(--duration-fast) var(--ease);border-radius:20px;align-items:center;gap:7px;padding:6px 14px;display:flex}.kb-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.kb-search input{font-size:13px;font-family:var(--font);color:var(--text);background:0 0;border:none;outline:none;flex:1}.kb-search input::placeholder{color:var(--text-light)}.kb-main{flex:1;overflow-y:auto}.kb-materials{max-width:900px;margin:0 auto;padding:20px 24px}.kb-group{margin-bottom:28px}.kb-group-header{border-bottom:1px solid var(--border);cursor:pointer;border-radius:var(--radius-sm);transition:background var(--duration-fast) var(--ease);-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;margin-bottom:10px;padding:8px 12px;display:flex}.kb-group-header:hover{background:var(--bg-muted)}.kb-group-left{align-items:center;gap:6px;display:flex}.kb-group-chevron{color:var(--text-muted);transition:transform var(--duration) var(--ease);transform:rotate(90deg)}.kb-group-chevron.collapsed{transform:rotate(0)}.kb-group-title{color:var(--text);letter-spacing:.02em;font-size:13px;font-weight:700}.kb-group-count{color:var(--text-muted);background:var(--bg-muted);border-radius:10px;padding:1px 8px;font-size:11px}.kb-card-list{flex-direction:column;gap:8px;display:flex}.mc-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;will-change:transform;transition:transform var(--duration-fast) var(--ease), border-color var(--duration-fast) var(--ease), box-shadow var(--duration-fast) var(--ease);display:flex;overflow:hidden}.mc-card:hover{border-color:var(--accent);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.mc-card.expanded{border-color:var(--accent);box-shadow:var(--shadow-md)}.mc-stripe{flex-shrink:0;width:4px}.mc-main{flex:1;min-width:0;padding:14px 16px}.mc-header{justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:6px;display:flex}.mc-title-area{flex:1;min-width:0}.mc-title{color:var(--text);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:14px;font-weight:600;line-height:1.5;display:-webkit-box;overflow:hidden}.mc-extra{color:var(--text-muted);margin-top:2px;font-size:12px;line-height:1.4}.mc-chevron{color:var(--text-light);transition:transform var(--duration) var(--ease);flex-shrink:0;margin-top:2px}.mc-chevron.rotated{transform:rotate(90deg)}.mc-summary{color:var(--text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:10px;font-size:13px;line-height:1.65;display:-webkit-box;overflow:hidden}.mc-meta{flex-wrap:wrap;align-items:center;gap:10px;font-size:11px;display:flex}.mc-source{background:var(--bg-muted);border-radius:3px;padding:2px 8px;font-size:11px;font-weight:600}.mc-tags{flex-wrap:wrap;gap:5px;display:flex}.mc-tag{background:var(--accent-light);color:var(--accent-dark);border-radius:3px;padding:2px 8px;font-size:10px;font-weight:500}.mc-date{color:var(--text-light);align-items:center;gap:4px;margin-left:auto;font-size:11px;display:flex}.mc-detail{border-top:1px dashed var(--border);animation:fadeIn .2s var(--ease);margin-top:12px;padding-top:12px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.mc-detail-loading{color:var(--text-muted);padding:10px 0;font-size:12px}.mc-detail-content{color:var(--text);max-height:300px;padding-right:8px;font-size:13px;line-height:1.8;overflow-y:auto}.mc-detail-content h1,.mc-detail-content h2,.mc-detail-content h3{margin:10px 0 6px;font-size:14px;font-weight:700}.mc-detail-content p{margin-bottom:8px}.mc-detail-content ul,.mc-detail-content ol{margin:6px 0;padding-left:20px}.mc-detail-content li{margin-bottom:3px}.mc-detail-content code{background:var(--bg-muted);font-family:var(--font-mono);border-radius:3px;padding:2px 5px;font-size:12px}.mc-detail-content pre{background:var(--bg-muted);border-radius:var(--radius);margin:8px 0;padding:10px 14px;font-size:12px;overflow-x:auto}.mc-detail-empty{color:var(--text-light);padding:8px 0;font-size:12px}.mc-detail-link{background:var(--accent);color:#fff;border-radius:var(--radius-sm);transition:background var(--duration-fast) var(--ease);align-items:center;gap:5px;margin-top:10px;padding:6px 14px;font-size:12px;font-weight:500;text-decoration:none;display:inline-flex}.mc-detail-link:hover{background:var(--accent-dark)}.mc-detail-actions{align-items:center;gap:8px;margin-top:10px;display:flex}.mc-detail-delete{border:1px solid var(--border);background:var(--bg-card);color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;font-size:12px;font-weight:500;font-family:var(--font);transition:all var(--duration-fast) var(--ease);align-items:center;gap:5px;padding:6px 14px;display:inline-flex}.mc-detail-delete:hover{color:var(--danger,#dc2626);border-color:var(--danger,#dc2626);background:#dc26260d}.kb-loading{text-align:center;color:var(--text-muted);padding:60px 20px;font-size:14px}.kb-empty-list{text-align:center;color:var(--text-light);flex-direction:column;align-items:center;gap:4px;padding:60px 20px;display:flex}.kb-empty-list svg{opacity:.4}.kb-empty-list p{font-size:14px}.kb-empty-hint{color:var(--text-muted);font-size:12px!important}.copilot-fab{z-index:50;background:var(--accent);color:#fff;cursor:pointer;width:52px;height:52px;box-shadow:0 4px 20px var(--accent-glow);transition:all var(--duration) var(--ease);border:none;border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;bottom:24px;right:24px}.copilot-fab:hover{box-shadow:0 6px 28px var(--accent-glow);transform:scale(1.08)}.copilot-fab-badge{color:#fff;border:2px solid var(--bg-card);background:#dc2626;border-radius:9px;justify-content:center;align-items:center;min-width:18px;height:18px;padding:0 5px;font-size:10px;font-weight:700;display:flex;position:absolute;top:-2px;right:-2px}.copilot-backdrop{z-index:55;position:absolute;inset:0}.copilot-drawer{z-index:60;background:var(--bg-card);border-left:1px solid var(--border);width:420px;max-width:90vw;animation:slideInRight .25s var(--ease);flex-direction:column;display:flex;position:absolute;top:0;bottom:0;right:0;box-shadow:-4px 0 24px #0000000f}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}.copilot-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;min-height:48px;padding:12px 16px;display:flex}.copilot-title{align-items:center;gap:8px;display:flex}.copilot-title>span:first-of-type{color:var(--text);font-size:15px;font-weight:700}.copilot-subtitle{color:var(--text-muted);font-size:11px}.copilot-header-actions{align-items:center;gap:4px;display:flex}.copilot-clear,.copilot-minimize{cursor:pointer;color:var(--text-muted);border-radius:var(--radius-sm);transition:all var(--duration-fast) var(--ease);background:0 0;border:none;justify-content:center;align-items:center;padding:6px;display:flex}.copilot-clear:hover{color:var(--danger);background:var(--bg-muted)}.copilot-minimize:hover{color:var(--text);background:var(--bg-muted)}.copilot-messages{flex:1;padding:16px;overflow-y:auto}.copilot-welcome{text-align:center;flex-direction:column;align-items:center;gap:12px;padding:30px 20px;display:flex}.copilot-welcome>svg{color:var(--accent);opacity:.8}.copilot-welcome>p{color:var(--text);font-size:16px;font-weight:600}.copilot-suggestions{flex-direction:column;gap:8px;width:100%;margin-top:8px;display:flex}.copilot-suggestion{border:1px solid var(--border);background:var(--bg-muted);border-radius:var(--radius);font-size:13px;font-family:var(--font);color:var(--text-muted);cursor:pointer;text-align:left;transition:all var(--duration-fast) var(--ease);padding:10px 14px}.copilot-suggestion:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light)}.copilot-tip{color:var(--text-light);margin-top:12px;font-size:11px}.copilot-input-area{border-top:1px solid var(--border);padding:10px 16px 14px}.image-preview-bar{background:var(--bg-muted);border:1px solid var(--border);border-radius:var(--radius-lg);align-items:center;gap:8px;margin-bottom:6px;padding:6px 10px;display:flex}.image-preview-bar img{object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--border);width:40px;height:40px}.image-preview-bar .ip-info{color:var(--text-muted);flex:1;font-size:11px}.image-preview-bar .ip-info strong{color:var(--text);margin-bottom:1px;font-size:12px;display:block}.image-preview-bar .ip-remove{cursor:pointer;color:var(--danger);border-radius:var(--radius-sm);padding:3px 6px;display:flex}.vision-presets{flex-wrap:wrap;gap:5px;margin-bottom:6px;display:flex}.vision-preset{border:1px solid var(--border);background:var(--bg-card);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-muted);transition:all var(--duration-fast) var(--ease);white-space:nowrap;font-size:11px;font-family:var(--font);align-items:center;gap:4px;padding:4px 10px;display:flex}.vision-preset:hover{border-color:var(--accent);color:var(--accent)}.vision-preset.active{border-color:var(--accent);color:var(--accent);background:var(--accent-light);font-weight:600}.chat-input-wrap{background:var(--bg-muted);border:1px solid var(--border);border-radius:var(--radius-lg);transition:border-color var(--duration-fast) var(--ease);align-items:flex-end;gap:8px;padding:5px 5px 5px 14px;display:flex}.chat-input-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.chat-input{resize:none;font-family:var(--font);max-height:100px;color:var(--text);background:0 0;border:none;outline:none;flex:1;padding:6px 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msgIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.msg-avatar{border-radius:var(--radius);flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.msg-avatar.user-avatar{background:var(--accent);color:#fff}.msg-avatar.assistant-avatar{background:var(--accent-light);color:var(--accent)}.msg-content{flex:1;min-width:0;padding-top:1px}.msg-name{color:var(--text-muted);align-items:center;gap:6px;margin-bottom:3px;font-size:11px;font-weight:600;display:flex}.msg-streaming-badge{color:var(--accent);background:var(--accent-light);border-radius:8px;padding:1px 7px;font-size:10px;font-weight:500;animation:1.5s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.msg-placeholder{color:var(--text-light);animation:1s infinite pulse}.reasoning-block{border:1px solid 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