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var(--border-default);border-radius:8px;box-shadow:0 -4px 16px #0000001f;padding:4px}.composer-sg-item{display:flex;align-items:center;gap:8px;padding:5px 8px;font-size:12px;color:var(--text-secondary);border-radius:6px;cursor:pointer}.composer-sg-item:hover{background:var(--bg-subtle)}[data-density=compact] .messages-area{padding:10px;gap:8px}[data-density=compact] .chat-thread{gap:8px}[data-density=compact] .message-bubble{padding:7px 10px;font-size:12px;line-height:1.45}[data-density=compact] .chat-input-bar{padding:8px 12px}.estart{width:100%;max-width:720px;margin:0 auto;padding:36px 4px 8px;display:flex;flex-direction:column;gap:30px}.egreet{text-align:center}.egreet-title{font-size:var(--text-xl);font-weight:var(--fw-bold);letter-spacing:-.2px;margin-bottom:4px;color:var(--text-primary)}.egreet-sub{font-size:var(--text-sm);color:var(--text-tertiary)}.esec-head{display:flex;align-items:center;gap:8px;margin-bottom:11px;color:var(--text-secondary)}.esec-head 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var(--transition-fast)}.ecard:hover{border-color:var(--brand-primary);box-shadow:var(--shadow-hover)}.ecard:disabled{opacity:.6;cursor:default}.etile{width:28px;height:28px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:8px}.etile--brand{background:var(--brand-primary-subtle);color:var(--brand-primary)}.etile--orange{background:var(--brand-orange-subtle);color:var(--brand-orange)}.etile--info{background:var(--color-info-bg);color:var(--color-info)}.etile--success{background:var(--color-success-bg);color:var(--color-success)}.et{font-size:var(--text-sm);font-weight:var(--fw-bold);color:var(--text-primary);margin-bottom:2px}.ed{font-size:var(--text-xs);color:var(--text-tertiary);line-height:1.4}.elist{display:flex;flex-direction:column;gap:6px}.eline{display:flex;align-items:center;gap:11px;width:100%;text-align:left;background:var(--bg-surface);border:1px solid var(--border-default);border-radius:var(--radius-md);padding:10px 13px;cursor:pointer;font-family:var(--font-body);transition:border-color var(--transition-fast),background var(--transition-fast)}.eline:hover{border-color:var(--brand-primary);background:var(--brand-primary-subtle)}.eline:disabled{opacity:.6;cursor:default}.erank{width:20px;height:20px;border-radius:6px;flex-shrink:0;background:var(--bg-subtle);color:var(--text-tertiary);font-size:var(--text-xs);font-weight:var(--fw-bold);display:flex;align-items:center;justify-content:center}.etxt{flex:1;font-size:var(--text-sm);color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ecnt{font-size:var(--text-xs);color:var(--text-tertiary);flex-shrink:0}@media (max-width: 600px){.egrid{grid-template-columns:1fr}}.cmdk-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:#00000059;display:flex;align-items:flex-start;justify-content:center;padding-top:12vh}.cmdk-panel{width:100%;max-width:560px;max-height:66vh;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-surface);border:1px solid var(--border-default);border-radius:12px;box-shadow:0 20px 60px #00000047}.cmdk-search{display:flex;align-items:center;gap:9px;padding:12px 14px;border-bottom:1px solid var(--border-default);color:var(--text-tertiary);flex-shrink:0}.cmdk-search input{flex:1;border:none;outline:none;background:none;font-size:14px;color:var(--text-primary);font-family:var(--font-body)}.cmdk-kbd{font-size:10px;color:var(--text-tertiary);border:1px solid var(--border-default);border-radius:5px;padding:2px 6px}.cmdk-list{overflow-y:auto;padding:6px}.cmdk-section{font-size:9.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-tertiary);padding:8px 10px 3px}.cmdk-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border-radius:8px;border:none;background:none;cursor:pointer;font-size:13px;color:var(--text-secondary);text-align:left}.cmdk-item.active{background:var(--bg-subtle);color:var(--text-primary)}.cmdk-item span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cmdk-empty{padding:22px;text-align:center;font-size:13px;color:var(--text-tertiary)}.welcome-card{width:100%;max-width:440px;margin:0 16px;background:var(--bg-surface);border:1px solid var(--border-default);border-radius:14px;box-shadow:0 24px 70px #00000052;padding:26px 24px 18px;position:relative;text-align:center}.welcome-skip{position:absolute;top:12px;right:12px;background:none;border:none;cursor:pointer;color:var(--text-tertiary);padding:4px;border-radius:6px}.welcome-skip:hover{background:var(--bg-subtle);color:var(--text-primary)}.welcome-icon{width:52px;height:52px;border-radius:14px;margin:0 auto 14px;display:flex;align-items:center;justify-content:center;background:var(--brand-primary-subtle);color:var(--brand-primary)}.welcome-title{font-size:17px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.welcome-body{font-size:13px;line-height:1.6;color:var(--text-secondary);min-height:66px}.welcome-dots{display:flex;justify-content:center;gap:6px;margin:16px 0 18px}.welcome-dot{width:7px;height:7px;border-radius:50%;background:var(--border-default);cursor:pointer;transition:all .15s}.welcome-dot.active{background:var(--brand-primary);width:18px;border-radius:4px}.welcome-actions{display:flex;align-items:center;justify-content:space-between}.mobile-topbar,.app-backdrop{display:none}@media (max-width: 768px){.mobile-topbar{display:flex;align-items:center;justify-content:space-between;gap:8px;height:46px;flex-shrink:0;padding:0 8px;background:var(--bg-header);border-bottom:1px solid var(--border-default)}.main-area>:not(.mobile-topbar){flex:1 1 0;min-height:0;height:auto}.sidebar{position:fixed;top:0;left:0;height:100%;z-index:200;width:250px!important;transform:translate(-100%);transition:transform .2s ease}.sidebar.mobile-open{transform:translate(0);box-shadow:0 0 50px #00000059}.app-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:190}.chat-main{position:relative}.chat-history:not(.collapsed){position:absolute;top:0;right:0;height:100%;z-index:30;width:78%;max-width:300px;box-shadow:-4px 0 24px #0003}.messages-area{padding:12px}.chat-input-bar{padding:10px 12px}.cmdk-panel{margin:0 12px}}.divider{height:1px;background:var(--border-default);margin:12px 0}.text-muted{color:var(--text-tertiary);font-size:12px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}.flex-row{display:flex;align-items:center;gap:8px}.flex-between{display:flex;align-items:center;justify-content:space-between}.gap-2{gap:8px}.mt-2{margin-top:8px}.mt-4{margin-top:16px}.tag{display:inline-flex;align-items:center;gap:4px;background:var(--bg-subtle);border:1px solid var(--border-default);border-radius:var(--radius-sm);padding:2px 8px;font-size:11px;color:var(--text-secondary);font-weight:500}.rag-source-card{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;padding:16px 12px;border:1.5px solid var(--border-default);border-radius:var(--radius-md);background:var(--bg-surface);cursor:pointer;text-align:center;transition:all var(--transition-fast)}.rag-source-card:hover,.rag-source-card[data-active=true]{border-color:var(--brand-primary);background:var(--brand-primary-subtle)}.rag-source-icon{width:38px;height:38px;border-radius:var(--radius-sm);background:var(--bg-subtle);display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);transition:all var(--transition-fast)}.rag-source-card[data-active=true] .rag-source-icon,.rag-source-card:hover .rag-source-icon{background:var(--brand-primary-muted);color:var(--brand-primary)}.rag-source-label{font-size:12px;font-weight:700;color:var(--text-primary)}.rag-source-desc{font-size:11px;color:var(--text-tertiary);line-height:1.4}.rag-dropzone{border:2px dashed var(--border-default);border-radius:var(--radius-md);padding:32px 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;text-align:center;background:var(--bg-elevated);transition:all var(--transition-fast)}.rag-dropzone:hover,.rag-dropzone--drag{border-color:var(--brand-primary);background:var(--brand-primary-subtle)}.rag-file-list{display:flex;flex-direction:column;gap:4px;max-height:200px;overflow-y:auto}.rag-file-item{display:flex;align-items:center;gap:8px;padding:6px 10px;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-sm)}.rag-info-box{display:flex;align-items:flex-start;gap:8px;padding:10px 12px;background:var(--color-info-bg);border:1px solid rgba(26,79,160,.15);border-radius:var(--radius-sm);font-size:12px;color:var(--text-secondary);line-height:1.55}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}.spinner{animation:spin .8s linear infinite}.signin-page{--bg-base: #F0F2F5;--bg-surface: #FFFFFF;--bg-elevated: #F7F8FA;--bg-subtle: #F1F4F7;--bg-muted: #DEE3E9;--bg-header: rgba(255,255,255,.92);--text-primary: #1C1E21;--text-secondary: #444950;--text-tertiary: #8A9BA8;--text-placeholder: #B0BBC5;--border-default: #DEE3E9;--border-strong: #C0CCD6;--border-subtle: rgba(0,0,0,.06);--color-success-bg: #E1F5EE;--color-warning-bg: #FAEEDA;--color-error-bg: #FCEBEB;--color-info-bg: #E8F0FF;min-height:100vh;display:flex;background:var(--bg-base);color:var(--text-primary)}.signin-left{flex:0 0 480px;background:linear-gradient(155deg,#0d2e6b,#1a4fa0 45%,#2b6dd4 72%,#f47920 130%);display:flex;flex-direction:column;justify-content:space-between;padding:48px 52px;color:#fff;position:relative;overflow:hidden}.signin-left:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:url("data:image/svg+xml,%3Csvg width='400' height='400' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='350' cy='80' r='180' fill='rgba(255,255,255,0.04)'/%3E%3Ccircle cx='60' cy='340' r='130' fill='rgba(255,255,255,0.03)'/%3E%3C/svg%3E") no-repeat center;background-size:cover;pointer-events:none}.signin-brand{display:flex;align-items:center;gap:14px;position:relative}.signin-logo{width:44px;height:44px;border-radius:var(--radius-md);background:#ffffff2e;border:1px solid rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;letter-spacing:-.5px;color:#fff;flex-shrink:0}.signin-appname{font-size:20px;font-weight:800;letter-spacing:-.5px;color:#fff}.signin-powered{font-size:11.5px;color:#ffffffa6;margin-top:2px}.signin-headline{position:relative}.signin-headline h2{font-size:30px;font-weight:800;line-height:1.18;letter-spacing:-.8px;color:#fff;margin-bottom:14px}.signin-headline p{font-size:14px;line-height:1.65;color:#ffffffb8;max-width:340px}.signin-features{display:flex;flex-direction:column;gap:16px;position:relative}.signin-feature{display:flex;align-items:flex-start;gap:14px;padding:14px 16px;background:#ffffff14;border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-md);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.signin-feature-icon{width:30px;height:30px;flex-shrink:0;background:#ffffff26;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff}.signin-feature-title{font-size:12.5px;font-weight:700;color:#fff;margin-bottom:3px}.signin-feature-desc{font-size:11.5px;color:#ffffffa6;line-height:1.55}.signin-right{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 48px;overflow-y:auto}.signin-card{width:100%;max-width:400px}.signin-card-header{margin-bottom:28px}.signin-card-logo{width:40px;height:40px;border-radius:var(--radius-md);background:var(--brand-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;letter-spacing:-.5px;margin-bottom:18px}.signin-card-header h1{font-size:22px;font-weight:800;letter-spacing:-.6px;color:var(--text-primary);margin-bottom:6px}.signin-card-header p{font-size:13px;color:var(--text-tertiary)}.signin-form{display:flex;flex-direction:column;gap:18px}.signin-form .form-input{width:100%;box-sizing:border-box}.signin-forgot-row{display:flex;justify-content:flex-end;margin-top:7px}.signin-forgot{font-size:11.5px;font-weight:600;color:var(--brand-primary);background:none;border:none;padding:0;cursor:pointer;transition:color var(--transition-fast)}.signin-forgot:hover{color:var(--brand-primary-hover)}.signin-pw-wrap{position:relative}.signin-pw-toggle{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:none;padding:2px;color:var(--text-tertiary);display:flex;align-items:center;cursor:pointer;transition:color var(--transition-fast)}.signin-pw-toggle:hover{color:var(--text-secondary)}.signin-footer{display:flex;align-items:center;justify-content:center;gap:5px;margin-top:24px;font-size:11px;color:var(--text-tertiary)}.signin-powered{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:14px}.signin-powered span{font-size:11px;color:var(--text-tertiary)}.signin-powered-logo{height:22px;object-fit:contain;display:block}@media (max-width: 860px){.signin-left{display:none}.signin-right{padding:32px 20px}}