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var(--transition-fast)}.mc-btn:hover{background:var(--surface-2);color:var(--fg)}.mc-btn.mc-zoom{width:auto;min-width:46px;font-size:11px}.mermaid-viewport{overflow:auto;max-height:520px;border-radius:var(--radius-md)}.mermaid-chart-wrap:fullscreen{background:var(--bg, #fff);display:flex;flex-direction:column;padding:16px;overflow:hidden}.mermaid-chart-wrap:fullscreen .mermaid-viewport{flex:1;min-height:0;width:100%;max-height:none;display:flex;align-items:center;justify-content:center;overflow:auto}.mermaid-chart-wrap:fullscreen .mermaid-chart{width:100%}.mermaid-chart-wrap:fullscreen .mermaid-chart svg{width:100%;max-width:none;height:auto;max-height:100%}.mermaid-chart svg{max-width:100%;height:auto}.mem-card{border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-md);margin:var(--space-sm) 0;background:var(--surface-2)}.mem-fact{font-size:var(--text-sm);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);background:var(--surface);margin:var(--space-xs) 0;display:flex;justify-content:space-between;align-items:center;gap:var(--space-sm);border:1px solid var(--border-light)}.mem-empty{color:var(--muted);font-size:var(--text-sm);text-align:center;padding:var(--space-lg)}.msg-version-nav{display:flex;align-items:center;gap:var(--space-xs);margin-top:var(--space-sm);font-size:var(--text-xs);color:var(--muted-2)}.msg-version-nav button{width:26px;height:26px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--muted);cursor:pointer;display:grid;place-items:center}.msg-version-nav button:hover{border-color:var(--sky-blue);color:var(--sky-blue)}.msg-version-nav .version-text{font-family:JetBrains Mono,monospace;font-size:10px;padding:0 var(--space-xs)}.msg-meta{display:flex;gap:var(--space-xs);margin-top:var(--space-sm);align-items:center}.msg-action{width:28px;height:28px;border:none;background:transparent;color:var(--muted-2);cursor:pointer;border-radius:var(--radius-sm);display:grid;place-items:center;transition:all var(--transition-fast)}.msg-action:hover{color:var(--sky-blue);background:var(--surface-3)}.sources{margin-top:var(--space-sm);display:flex;flex-wrap:wrap;gap:var(--space-xs);align-items:center}.sources .lbl{font-size:var(--text-xs);color:var(--muted);font-weight:600}.sources .chip{font-size:var(--text-xs);padding:var(--space-xs) 10px;border-radius:var(--radius-full);background:var(--surface-3);border:1px solid var(--border);color:var(--muted)}.typing-indicator{display:flex;gap:var(--space-xs);padding:var(--space-sm) 0}.typing-indicator span{width:9px;height:9px;background:var(--muted-2);border-radius:var(--radius-full);animation:typingBounce 1.4s infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-7px);opacity:1}}.streaming-cursor{display:inline-block;width:2px;height:1em;background:var(--sky-blue);margin-inline-start:2px;vertical-align:text-bottom;animation:cursorPulse 1s infinite;border-radius:1px}@keyframes cursorPulse{0%,50%{opacity:1}51%,to{opacity:0}}.msg-status{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) 0;font-size:var(--text-sm);color:var(--muted);font-weight:500}.status-spinner{width:15px;height:15px;border:2px solid var(--surface-3);border-top-color:var(--sky-blue);border-radius:var(--radius-full);animation:spin .8s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.msg-metrics{display:inline-flex;align-items:center;gap:var(--space-xs);font-size:var(--text-xs);color:var(--muted-2);background:var(--surface-3);padding:var(--space-xs) 10px;border-radius:var(--radius-full);font-family:JetBrains Mono,monospace}.msg-action-labeled{display:inline-flex;align-items:center;gap:var(--space-xs);font-size:var(--text-xs);color:var(--muted-2);background:none;border:1px solid var(--border);padding:var(--space-xs) 10px;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);font-weight:600}.msg-action-labeled:hover{color:var(--sky-blue);border-color:var(--sky-blue);background:var(--sky-blue-50)}.search-badge{display:inline-flex;align-items:center;gap:3px;margin-inline-start:6px;padding:2px var(--space-sm);border-radius:var(--radius-full);background:#0ea5e91f;color:var(--sky-blue);font-size:10px;vertical-align:middle}.sug-search{border-color:var(--sky-blue)}.sug-search 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var(--transition);box-shadow:var(--shadow-xs)}.input-box:focus-within{border-color:var(--sky-blue);background:var(--surface);box-shadow:0 0 0 3px #0ea5e91a}.input-box textarea{flex:1;border:none;background:transparent;font-size:var(--text-base);line-height:1.5;color:var(--fg);resize:none;outline:none;max-height:200px;padding:10px 0;min-width:0}.send-btn{width:38px;height:38px;border:none;background:var(--brand-gradient);color:#fff;border-radius:var(--radius-full);cursor:pointer;display:grid;place-items:center;flex-shrink:0;align-self:flex-end;margin-bottom:2px;transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.send-btn:disabled{opacity:.4;cursor:not-allowed}.send-btn.stop{background:var(--danger, #e5484d);animation:stop-pulse 1.6s ease-in-out infinite}@keyframes stop-pulse{0%,to{box-shadow:0 0 #e5484d73}50%{box-shadow:0 0 0 7px #e5484d00}}.tool-btn{position:relative}.input-tools{position:relative;display:flex;gap:4px;align-self:flex-end;margin-bottom:2px}.menu-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:70}.mode-menu{position:absolute;bottom:calc(100% + 8px);left:0;z-index:80;min-width:250px;max-width:calc(100vw - 24px);padding:var(--space-xs);box-sizing:border-box}@media (max-width: 1024px){.mode-menu{position:fixed;left:12px;right:12px;bottom:0;top:auto;transform:none;min-width:0;width:auto;margin:0;max-height:60vh;overflow-y:auto;border-radius:var(--radius-lg, 14px) var(--radius-lg, 14px) 0 0;box-shadow:0 -8px 30px #0f172a2e;padding-bottom:max(var(--space-xs),env(safe-area-inset-bottom))}.menu-backdrop{z-index:79}.mode-menu{z-index:80}}.mode-menu .dropdown-item{border:none;background:none;width:100%;text-align:start;font:inherit}.mode-menu .dropdown-item.selected{background:var(--surface-2);color:var(--fg)}.mode-menu .dropdown-item .mode-dot{position:static;flex-shrink:0}.mode-menu-label{display:flex;flex-direction:column;gap:1px;flex:1;min-width:0}.mode-menu-title{font-weight:600;font-size:var(--text-sm)}.mode-menu-desc{font-size:11px;opacity:.65}.mode-ic{display:flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:var(--radius-md);flex-shrink:0;color:var(--muted);background:var(--surface-2)}.mode-ic.mode-search{color:#3fb950}.mode-ic.mode-advanced{color:#d29922}.mode-ic.mode-research{color:#a371f7}.mode-ic.mode-off{color:var(--muted)}.mode-chip svg{flex-shrink:0}.mode-check{color:var(--brand, #10a37f);font-weight:700}.mode-chip{display:flex;align-items:center;gap:5px;align-self:flex-end;margin-bottom:9px;padding:2px 8px;border-radius:var(--radius-full);background:var(--surface-2);font-size:11px;color:var(--fg-2);white-space:nowrap}.mode-chip .mode-dot{position:static}.mode-chip-text{max-width:110px;overflow:hidden;text-overflow:ellipsis}.mode-badge{display:inline-flex;align-items:center;gap:4px;text-transform:none}.mode-badge .mode-dot{position:static;width:7px;height:7px}.mode-badge-text{font-size:10px}.mode-badge.mode-research{color:#a371f7}.mode-badge.mode-advanced{color:#d29922}.mode-badge.mode-search{color:#3fb950}.think-badge{color:#a371f7}.dropdown-header{padding:var(--space-xs) var(--space-md) var(--space-sm);font-size:11px;text-transform:uppercase;letter-spacing:.06em;opacity:.55}.mode-dot{position:absolute;top:-2px;right:-2px;width:8px;height:8px;border-radius:50%;border:1.5px solid var(--bg-2, #fff)}.mode-dot.mode-search{background:#3fb950}.mode-dot.mode-advanced{background:#d29922}.mode-dot.mode-research{background:#a371f7}.send-btn:hover:not(:disabled){transform:scale(1.05);box-shadow:var(--shadow)}.send-btn:active:not(:disabled){transform:scale(.98)}.tool-btn{width:38px;height:38px;border:none;background:transparent;color:var(--muted-2);cursor:pointer;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.tool-btn:hover{color:var(--sky-blue);background:var(--surface-3)}.tool-btn.active{color:var(--sky-blue);background:var(--sky-blue-light)}.input-footer{max-width:var(--content-max);margin:var(--space-sm) auto 0;text-align:center;font-size:var(--text-xs);color:var(--muted-2)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a8c;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;z-index:1000;padding:var(--space-lg)}.modal-overlay.show{display:flex;animation:overlayFade .2s ease}@keyframes overlayFade{0%{opacity:0}to{opacity:1}}.modal{background:var(--surface);border-radius:var(--radius-xl);width:100%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl);border:1px solid var(--border);animation:modalRise .25s cubic-bezier(.16,1,.3,1)}@keyframes modalRise{0%{opacity:0;transform:translateY(20px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-head{padding:var(--space-lg) var(--space-lg);border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;gap:var(--space-md)}.modal-head h3{font-size:var(--text-lg);font-weight:700;color:var(--fg)}.modal-head p{font-size:var(--text-sm);color:var(--muted);margin-top:var(--space-xs)}.modal-body{padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-md)}.assistant-option{display:flex;align-items:center;gap:var(--space-lg);padding:var(--space-lg);border:1.5px solid var(--border);border-radius:var(--radius-lg);cursor:pointer;background:var(--surface);text-align:start;transition:all var(--transition)}.assistant-option:hover{border-color:var(--sky-blue);background:var(--surface-2);transform:translateY(-1px)}.assistant-option.locked{opacity:.55;cursor:not-allowed}.assistant-option .asst-icon{width:48px;height:48px;border-radius:var(--radius-md);display:grid;place-items:center;flex-shrink:0}.assistant-option .asst-name{font-size:var(--text-base);font-weight:700;color:var(--fg);margin-bottom:2px;display:flex;align-items:center;gap:var(--space-sm)}.assistant-option .asst-desc{font-size:var(--text-sm);color:var(--muted)}.icon-btn-close{width:34px;height:34px;border-radius:var(--radius-full);border:1px solid var(--border);background:var(--surface-2);color:var(--muted);cursor:pointer;display:grid;place-items:center;flex-shrink:0;transition:all var(--transition-fast)}.icon-btn-close:hover{color:var(--danger);border-color:var(--danger);background:var(--danger-bg)}.ps-form-group{margin-bottom:var(--space-md)}.ps-form-group label{display:block;font-size:var(--text-xs);color:var(--muted);margin-bottom:var(--space-xs);font-weight:600;text-transform:uppercase;letter-spacing:.03em}.ps-form-group input,.ps-form-group select{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius-md);background:var(--surface-2);color:var(--fg);font-size:var(--text-sm);outline:none;transition:all var(--transition-fast)}.ps-form-group input:focus,.ps-form-group select:focus{border-color:var(--sky-blue);background:var(--surface);box-shadow:0 0 0 3px #0ea5e914}.ps-save-btn{background:var(--brand-gradient);color:#fff;border:none;padding:10px var(--space-lg);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:700;cursor:pointer;transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.ps-save-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.ps-cancel-btn{background:transparent;color:var(--muted);border:1.5px solid var(--border);padding:10px var(--space-lg);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.ps-cancel-btn:hover{border-color:var(--muted);color:var(--fg)}.ps-danger-btn{background:var(--danger);color:#fff;border:none;padding:10px var(--space-lg);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:700;cursor:pointer;transition:all var(--transition-fast)}.ps-danger-btn:hover{background:#b91c1c;transform:translateY(-1px)}.modal-foot{display:flex;justify-content:flex-end;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);border-top:1px solid var(--border-light)}.token-field{display:flex;gap:var(--space-sm);align-items:center}.token-field input{flex:1}.copy-btn{flex-shrink:0;display:inline-flex;align-items:center;gap:var(--space-xs);font-size:var(--text-xs);font-weight:600;padding:11px var(--space-md);border:1.5px solid var(--border);border-radius:var(--radius-md);background:var(--surface-2);color:var(--muted);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.copy-btn:hover{color:var(--sky-blue);border-color:var(--sky-blue);background:var(--sky-blue-50)}.copy-btn.copied{color:var(--success);border-color:var(--success);background:var(--success-bg)}.usage-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-sm);margin-top:var(--space-sm)}.usage-stat{padding:var(--space-md);background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-md);text-align:center}.usage-stat .stat-icon{font-size:var(--text-lg);margin-bottom:var(--space-xs)}.usage-stat .stat-value{font-size:var(--text-xl);font-weight:800;color:var(--fg);line-height:1.2}.usage-stat .stat-label{font-size:var(--text-xs);color:var(--muted);margin-top:var(--space-xs);font-weight:600}.usage-detail{margin-top:var(--space-sm);padding-top:var(--space-sm);border-top:1px solid 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10px;border-radius:var(--radius-full)}.quota-card-badge.unlimited{background:var(--surface-3);color:var(--muted)}.quota-card-badge.ok{background:var(--success-bg);color:var(--success)}.quota-card-badge.warn{background:var(--warning-bg);color:var(--warning)}.quota-card-badge.exceeded{background:var(--danger-bg);color:var(--danger)}.quota-bar-group{margin-bottom:var(--space-sm)}.quota-bar-group:last-child{margin-bottom:0}.quota-bar-label{display:flex;justify-content:space-between;font-size:var(--text-xs);color:var(--muted);margin-bottom:var(--space-xs);font-weight:600}.quota-bar-track{height:6px;background:var(--surface-3);border-radius:var(--radius-full);overflow:hidden}.quota-bar-fill{height:100%;border-radius:var(--radius-full);transition:width .4s ease}.quota-bar-fill.ok{background:var(--success)}.quota-bar-fill.warn{background:var(--warning)}.quota-bar-fill.exceeded{background:var(--danger)}.toggle-switch{direction:ltr;position:relative;display:inline-block;width:40px;height:22px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background:var(--muted-2);border-radius:var(--radius-full);transition:background var(--transition)}.toggle-slider:before{content:"";position:absolute;height:16px;width:16px;left:3px;top:3px;background:#fff;border-radius:var(--radius-full);transition:transform var(--transition);box-shadow:var(--shadow-xs)}.toggle-switch input:checked+.toggle-slider{background:var(--sky-blue)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(18px)}.model-check{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:var(--space-md);border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-2)}.toast-wrap{position:fixed;bottom:var(--space-lg);left:0;right:0;display:flex;justify-content:center;z-index:2000;pointer-events:none}.toast{background:var(--fg);color:var(--surface);padding:12px var(--space-lg);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:500;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:var(--space-sm);max-width:90vw;animation:toastRise .25s ease}@keyframes toastRise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.toast.ok{background:var(--success);color:#fff}.toast.error{background:var(--danger);color:#fff}.toast.warning{background:var(--warning);color:#fff}.admin-view{flex:1;flex-direction:column;overflow:hidden;background:var(--bg);display:none}.admin-view.show{display:flex}.admin-topbar{height:var(--topbar-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 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