*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #f8f8f8;--bg-secondary: #ffffff;--bg-tertiary: #f1f5f9;--border: #e2e8f0;--text: #1e293b;--text-muted: #64748b;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #b91c1c;--danger-bg: #fef2f2;--danger-border: #fecaca;--success: #15803d;--success-bg: #f0fdf4;--warning-bg: #fef9c3;--warning-text: #854d0e;--sidebar-width: 280px}body{font-family:Hiragino Kaku Gothic ProN,Noto Sans JP,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.auth-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:40px;width:100%;max-width:400px}.auth-title{font-size:28px;font-weight:700;text-align:center;margin-bottom:4px}.auth-subtitle{text-align:center;color:var(--text-muted);margin-bottom:24px}.auth-form{display:flex;flex-direction:column;gap:12px}.auth-input{padding:10px 14px;border:1px solid var(--border);border-radius:8px;background:var(--bg-tertiary);color:var(--text);font-size:14px;outline:none}.auth-input:focus{border-color:var(--primary)}.auth-input:disabled{opacity:.6}.auth-error{background:var(--danger-bg);border:1px solid var(--danger-border);color:var(--danger);padding:10px;border-radius:8px;font-size:13px}.auth-divider{display:flex;align-items:center;gap:12px;margin:20px 0;color:var(--text-muted);font-size:13px}.auth-divider:before,.auth-divider:after{content:"";flex:1;border-top:1px solid var(--border)}.btn-primary{padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer}.btn-primary:hover{background:var(--primary-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{padding:8px 16px;background:var(--bg-tertiary);color:var(--text);border:1px solid var(--border);border-radius:8px;font-size:13px;cursor:pointer}.btn-secondary:hover{background:var(--border)}.btn-xcloud{width:100%;padding:10px 20px;background:var(--bg-tertiary);color:var(--text);border:1px solid var(--border);border-radius:8px;font-size:14px;cursor:pointer}.btn-xcloud:hover{background:var(--border)}.chat-page{display:flex;height:100vh}@keyframes sb-slide-in{0%{transform:translate(-100%);opacity:0}to{transform:translate(0);opacity:1}}.sidebar{width:var(--sidebar-width);background:var(--bg);border-right:1px solid #e6e6e6;display:flex;flex-direction:column;overflow:hidden;animation:sb-slide-in .3s ease-out both;transition:width .2s,transform .26s ease-in,opacity .26s ease-in}.sidebar.sb-collapsing{animation:none!important;transform:translate(-100%);opacity:0}@media(prefers-reduced-motion:reduce){.sidebar{animation:none;transition:width .2s}.sidebar.sb-collapsing{transform:translate(-100%);opacity:0}}.sidebar.closed{width:0;border:none}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid #e6e6e6}.sidebar-brand{font-size:15px;font-weight:700;color:#0f172a}.btn-icon{background:none;border:none;color:var(--text-muted);font-size:18px;cursor:pointer;padding:4px 8px}.btn-icon:hover{color:var(--text)}.session-list{flex:1;overflow-y:auto;padding:6px 0}.btn-new-session{width:calc(100% - 24px);margin:4px 12px 8px;padding:8px 10px;background:var(--bg-tertiary);border:1px dashed var(--border);border-radius:6px;color:var(--text-muted);font-size:13px;cursor:pointer;text-align:left}.btn-new-session:hover{border-color:var(--primary);color:var(--primary)}.session-item{display:flex;align-items:center;width:100%;padding:7px 16px;background:none;border:none;color:#334155;font-size:14px;text-align:left;cursor:pointer}.session-item:hover{background:#e2e8f0}.session-item.active{background:#2563eb;color:#fff}.session-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}.sidebar-footer{padding:12px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:4px}.sidebar-link{background:none;border:none;color:var(--text-muted);font-size:13px;text-align:left;padding:6px 8px;cursor:pointer;border-radius:6px}.sidebar-link:hover{background:var(--bg-tertiary);color:var(--text)}.sidebar-user{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-muted);padding-top:8px;border-top:1px solid var(--border)}.btn-logout{background:none;border:none;color:var(--text-muted);font-size:12px;cursor:pointer}.btn-logout:hover{color:var(--danger)}.chat-main{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-secondary)}.chat-header{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border);flex-wrap:wrap}.chat-header .header-models{margin-left:auto;flex-wrap:wrap;justify-content:flex-end}.chat-header .usage-indicator{margin-left:0}.connection-status{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-muted)}.status-dot{width:8px;height:8px;border-radius:50%}.status-dot.connected{background:#22c55e}.status-dot.disconnected{background:var(--danger)}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--text-muted)}.chat-empty h2{font-size:32px;color:var(--text)}.chat-view{flex:1;overflow-y:auto;padding:16px}.messages-container{max-width:1200px;margin:0 auto}.response-group{margin-bottom:24px}.user-message{display:flex;justify-content:flex-end;margin-bottom:12px}.user-message-content{display:inline-block;background:var(--primary);color:#fff;padding:10px 16px;border-radius:12px;max-width:80%;white-space:pre-wrap;text-align:left}.ai-panels{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:12px}@media(max-width:768px){.ai-panels{grid-template-columns:1fr}}.ai-panel{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:10px;overflow:hidden;transition:box-shadow .2s}.ai-panel.is-streaming{box-shadow:0 0 0 1px #2563eb2e}.ai-panel-header{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:2px solid;font-size:12px}.ai-panel-icon{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:6px;color:#fff;font-size:11px;font-weight:700;letter-spacing:0;flex-shrink:0}.ai-panel-name{font-weight:700}.ai-panel-model{color:var(--text-muted)}.ai-panel-tokens{margin-left:auto;color:var(--text-muted);font-size:11px}.ai-panel-content{padding:12px;font-size:14px;line-height:1.7;max-height:500px;overflow-y:auto}.ai-panel-content p{margin-bottom:8px}.ai-panel-content pre{background:var(--bg);padding:10px;border-radius:6px;overflow-x:auto;font-size:13px;margin:8px 0}.ai-panel-content code{font-family:SF Mono,Fira Code,monospace}.ai-panel-error{color:var(--danger);font-size:13px}.cursor-blink{animation:blink 1s step-end infinite;color:var(--primary)}@keyframes blink{50%{opacity:0}}.ai-panel-status{display:inline-flex;align-items:center;gap:6px;margin-left:auto;color:var(--text-muted);font-size:11px}.ai-typing-text{font-size:11px}.ai-panel-waiting{display:flex;align-items:center;justify-content:center;min-height:64px}.ai-panel-waiting .ai-typing-dots span{width:8px;height:8px}.ai-typing-dots{display:inline-flex;gap:3px;align-items:center}.ai-typing-dots span{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--primary);opacity:.4;animation:ai-typing-bounce 1.2s infinite ease-in-out}.ai-typing-dots span:nth-child(2){animation-delay:.15s}.ai-typing-dots span:nth-child(3){animation-delay:.3s}@keyframes ai-typing-bounce{0%,80%,to{transform:translateY(0);opacity:.4}40%{transform:translateY(-4px);opacity:1}}.input-bar{padding:12px 16px;border-top:1px solid var(--border);background:var(--bg-secondary)}.model-selector{display:flex;gap:6px;margin-bottom:8px}.interim-banner{margin-bottom:8px;padding:6px 10px;border:1px solid #fde68a;background:var(--warning-bg);color:var(--warning-text);border-radius:6px;font-size:12px}.model-toggle{padding:4px 12px;border:1px solid var(--border);border-radius:16px;background:none;color:var(--text-muted);font-size:12px;cursor:pointer}.model-check{display:inline-flex;align-items:center;gap:6px;padding:4px 12px 4px 8px;border:1px solid var(--border);border-radius:16px;background:var(--bg-secondary);color:var(--text-muted);font-size:12px;cursor:pointer;-webkit-user-select:none;user-select:none;transition:border-color .12s,background .12s,color .12s}.model-check:hover{border-color:#cbd5e1;background:#f8fafc}.model-check.active{background:#eff6ff;border-color:#93c5fd;color:#1d4ed8}.model-check.active:hover{background:#dbeafe;border-color:#60a5fa}.model-check.disabled{opacity:.4;cursor:not-allowed}.model-check.disabled:hover{border-color:var(--border);background:var(--bg-secondary)}.model-check-input{position:absolute;opacity:0;pointer-events:none}.model-check-box{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border:1px solid var(--border);border-radius:3px;background:#fff;font-size:10px;font-weight:700;line-height:1}.model-check.active .model-check-box{background:var(--primary);border-color:var(--primary);color:#fff}.model-check-label{font-weight:500}.model-toggle.active{background:var(--primary);border-color:var(--primary);color:#fff}.input-row{display:flex;gap:8px}.input-textarea{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:10px;background:var(--bg-tertiary);color:var(--text);font-size:14px;font-family:inherit;resize:none;outline:none}.input-textarea:focus{border-color:var(--primary)}.btn-send{padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap}.btn-send:hover{background:var(--primary-hover)}.btn-send:disabled{opacity:.4;cursor:not-allowed}.input-hint-row{display:flex;align-items:center;gap:12px;margin-top:6px;font-size:11px;color:var(--text-muted)}.enter-mode-toggle{display:inline-flex;align-items:center;gap:4px;cursor:pointer;-webkit-user-select:none;user-select:none;padding:2px 6px;border-radius:4px;transition:background .12s,color .12s}.enter-mode-toggle:hover{background:var(--bg-tertiary);color:var(--text)}.enter-mode-toggle input{margin:0;cursor:pointer}.input-hint{color:var(--text-muted)}.settings-page{max-width:900px;margin:0 auto;padding:24px}.chat-main.usage-main{overflow-y:auto;padding:24px 32px 40px}.chat-main.usage-main .settings-header{max-width:900px;margin:0 auto 24px}.chat-main.usage-main .usage-self,.chat-main.usage-main .usage-org,.chat-main.usage-main .tab-bar{max-width:900px;margin-left:auto;margin-right:auto}.settings-header{display:flex;align-items:center;gap:16px;margin-bottom:24px}.settings-header h1{font-size:24px}.btn-back{background:none;border:none;color:var(--text-muted);font-size:14px;cursor:pointer}.btn-back:hover{color:var(--text)}.settings-section{background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:16px}.settings-section h2{font-size:16px;margin-bottom:12px}.settings-info{display:flex;flex-direction:column;gap:6px;font-size:14px}.settings-message{margin-top:8px;padding:8px 12px;background:var(--bg-tertiary);border-radius:6px;font-size:13px;word-break:break-all}.invite-form{display:flex;gap:8px;margin-bottom:12px}.invite-form .auth-input{flex:1}.user-table{width:100%;border-collapse:collapse;font-size:13px}.user-table th{text-align:left;padding:8px 12px;border-bottom:1px solid var(--border);color:var(--text-muted);font-weight:600}.user-table td{padding:8px 12px;border-bottom:1px solid var(--border)}.btn-danger-sm{padding:4px 10px;background:none;border:1px solid var(--danger);color:var(--danger);border-radius:6px;font-size:12px;cursor:pointer}.btn-danger-sm:hover{background:var(--danger);color:#fff}.tab-bar{display:flex;align-items:center;gap:4px;margin-bottom:16px;border-bottom:1px solid var(--border);padding-bottom:8px}.tab{padding:8px 16px;background:none;border:none;color:var(--text-muted);font-size:14px;cursor:pointer;border-radius:6px}.tab.active{background:var(--bg-tertiary);color:var(--text)}.tab-actions{margin-left:auto;display:flex;gap:8px;align-items:center}.tab-actions select{padding:6px 10px;background:var(--bg-tertiary);color:var(--text);border:1px solid var(--border);border-radius:6px;font-size:13px}.search-bar{display:flex;gap:8px;margin-bottom:16px}.search-bar .auth-input{flex:1}.search-result-item{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:12px;margin-bottom:8px}.search-result-meta{display:flex;gap:12px;font-size:12px;color:var(--text-muted);margin-bottom:6px}.search-result-content{font-size:13px;line-height:1.6}.loading-screen{display:flex;align-items:center;justify-content:center;height:100vh}.loading-spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.usage-indicator{display:inline-flex;align-items:center;gap:8px;margin-left:auto;padding:4px 10px;border:1px solid var(--border);background:var(--bg-secondary);border-radius:14px;font-size:12px;color:var(--text-muted);cursor:pointer;transition:border-color .12s,color .12s}.usage-indicator:hover{border-color:var(--primary);color:var(--text)}.usage-indicator-text{font-variant-numeric:tabular-nums;font-weight:500}.usage-indicator-bar{display:inline-block;width:60px;height:5px;background:var(--border);border-radius:3px;overflow:hidden}.usage-indicator-bar-fill{display:block;height:100%;background:var(--primary);transition:width .25s ease}.usage-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.usage-card{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;padding:14px 16px}.usage-card-label{font-size:12px;color:var(--text-muted);margin-bottom:6px}.usage-card-value{font-size:22px;font-weight:600;color:var(--text)}.usage-card-sub{font-size:12px;color:var(--text-muted);margin-top:6px}.usage-bar{height:6px;background:var(--border);border-radius:3px;margin-top:8px;overflow:hidden}.usage-bar-fill{height:100%;background:var(--primary);transition:width .3s ease}.usage-donut-row{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.usage-legend{display:flex;flex-direction:column;gap:8px;min-width:200px}.usage-legend-item{display:grid;grid-template-columns:14px 1fr auto;gap:10px;align-items:center;font-size:13px}.usage-legend-dot{width:12px;height:12px;border-radius:50%}.usage-legend-value{color:var(--text-muted);font-variant-numeric:tabular-nums}.usage-empty{color:var(--text-muted);font-size:13px;padding:12px 0}.usage-note{font-size:12px;color:var(--text-muted);margin-top:8px}