:root{--c-primary:#ff6b4a;--c-primary-600:#f05433;--c-primary-700:#d4431f;--c-primary-soft:#ffe8e0;--c-primary-softer:#fff1ea;--c-accent:#ffa870;--c-bg:#fff9f5;--c-bg-elev:#fff;--c-panel:#fffdfb;--c-panel-alt:#fff4ee;--c-hover:#fff0e8;--c-ink:#2b1810;--c-ink-2:#5a3f32;--c-muted:#8b6f5e;--c-muted-2:#b89e8d;--c-border:#f3e0d5;--c-border-strong:#eacbbb;--c-green:#2f9e6e;--c-blue:#4278bf;--c-violet:#7757c2;--r-sm:8px;--r-md:10px;--r-lg:14px;--sh-1:0 1px 2px rgba(79,37,18,.04);--sh-2:0 8px 24px -16px rgba(79,37,18,.2);--ease:cubic-bezier(0.2,0.8,0.2,1)}*{box-sizing:border-box}body,html{min-height:100%;margin:0}body{background:var(--c-bg);color:var(--c-ink);font-family:Plus Jakarta Sans,ui-sans-serif,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft 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a{color:var(--c-primary-700);font-weight:800}.auth-context{padding:42px;display:flex;align-items:flex-end;background:radial-gradient(circle at 20% 10%,rgba(255,168,112,.22),transparent 26%),linear-gradient(135deg,rgba(255,249,245,.1),rgba(255,232,224,.7))}.auth-context-header{max-width:680px}.auth-context-header span{display:block;color:var(--c-muted);font-size:12px;font-weight:800}.auth-context-header strong{display:block;margin-top:8px;font-size:clamp(34px,5vw,66px);line-height:1.02;letter-spacing:0}.auth-context-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:12px;gap:12px;margin-top:28px}.auth-context-grid div{border:1px solid hsla(0,0%,100%,.72);border-radius:var(--r-md);background:hsla(0,0%,100%,.56);padding:14px}.auth-context-grid b,.auth-context-grid span{display:block}.auth-context-grid span{margin-top:6px;color:var(--c-muted);font-size:12px}.spin{animation:spin .9s linear infinite}.shell{min-height:100vh;display:grid;grid-template-columns:288px 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var(--c-border);border-radius:var(--r-md);background:#fffaf5;padding:4px}.admin-console-tabs button{height:34px;display:inline-flex;align-items:center;gap:7px;border-radius:var(--r-sm);background:transparent;color:var(--c-muted);padding:0 12px;font-size:12px;font-weight:900}.admin-console-tabs button.active,.admin-console-tabs button:hover{background:#fff;color:var(--c-primary-700);box-shadow:var(--sh-1)}.rag-admin-page{padding-top:18px}.rag-status-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:12px;gap:12px}.rag-status-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr));margin-bottom:24px}.rag-status-card{min-width:0;border:1px solid var(--c-border);border-radius:var(--r-md);background:#fff;box-shadow:var(--sh-1);padding:14px}.rag-status-card small,.rag-status-card span{display:block;overflow:hidden;color:var(--c-muted);text-overflow:ellipsis;white-space:nowrap}.rag-status-card span{font-size:11px;font-weight:900}.rag-status-card 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var(--c-border);border-radius:var(--r-sm);background:#1f2933;color:#f8fafc;padding:12px;font-size:12px;line-height:1.5;white-space:pre-wrap}.rag-result.tall{min-height:150px}.rag-result.flow{height:360px}.rag-route-list{display:grid;grid-gap:8px;gap:8px;margin-bottom:14px}.rag-route-item{width:100%;min-width:0;display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--c-border);border-radius:var(--r-sm);background:#fffbf7;padding:10px;text-align:left}.rag-route-item.active,.rag-route-item:hover{border-color:var(--c-primary);background:var(--c-primary-softer)}.rag-route-item span{min-width:0}.rag-route-item b,.rag-route-item small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rag-route-item b{color:var(--c-ink);font-size:13px}.rag-route-item small{margin-top:3px;color:var(--c-muted);font-size:11px}.rag-history-item em,.rag-route-item em{flex:0 0 auto;border-radius:999px;background:#f0f7f3;color:var(--c-green);padding:3px 8px;font-size:11px;font-style:normal;font-weight:900}.rag-check-row{min-height:40px;display:flex;align-items:center;gap:8px;margin-top:22px}.rag-check-row input{width:16px;height:16px;accent-color:var(--c-primary)}.danger-text{color:#bb3325!important}.rag-node-red-panel{grid-column:1/-1}.rag-node-red-workspace{display:grid;grid-gap:14px;gap:14px;margin-bottom:14px}.rag-node-red-editor-shell{min-width:0;overflow:hidden;border:1px solid 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28px}.rag-run-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(340px,420px);grid-gap:16px;gap:16px;align-items:start}.rag-param-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px}.rag-run-button{margin:4px 0 12px}.rag-history-list{display:grid;grid-gap:10px;gap:10px}.rag-history-item{display:grid;grid-gap:8px;gap:8px;border:1px solid var(--c-border);border-radius:var(--r-sm);background:#fffbf7;padding:10px}.rag-history-item>div{min-width:0}.rag-history-item b,.rag-history-item span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rag-history-item b{color:var(--c-ink);font-size:13px}.rag-history-item span{margin-top:3px;color:var(--c-muted);font-size:11px}.rag-history-item em.bad{background:#fff0ed;color:#b73320}.rag-history-item em.bad,.rag-history-item em.ok{width:-moz-fit-content;width:fit-content}.rag-history-item pre{max-height:140px;overflow:auto;border:1px solid var(--c-border);border-radius:6px;background:#fff;color:var(--c-ink-2);padding:8px;font-size:11px;line-height:1.45;white-space:pre-wrap}.wf-card.active{border-color:var(--c-primary);background:var(--c-primary-softer);box-shadow:var(--sh-2)}.rag-kb-container{max-width:980px}.rag-kb-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.rag-kb-chat{margin-top:24px}.admin-save{width:100%}.arena-page,.groupchat-page{min-height:100vh;display:flex;flex-direction:column;gap:14px;padding:26px 28px 24px}.workspace-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.workspace-header h1{font-size:clamp(28px,3vw,40px)}.mode-switch{display:inline-flex;gap:4px;border:1px solid var(--c-border);border-radius:var(--r-md);background:#fff;padding:4px}.mode-button{min-height:32px;display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-sm);background:transparent;padding:0 11px;color:var(--c-muted);font-weight:800;white-space:nowrap}.mode-button.active{background:var(--c-primary);color:#fff}.model-strip{display:flex;align-items:center;gap:12px;border:1px solid var(--c-border);border-radius:var(--r-md);background:var(--c-panel);padding:10px 12px}.model-strip>span{color:var(--c-muted);font-size:12px;font-weight:900;white-space:nowrap}.model-chips{min-width:0;display:flex;flex-wrap:wrap;gap:8px}.member-chip,.model-chip{min-height:32px;display:inline-flex;align-items:center;gap:7px;border:1px solid var(--c-border);border-radius:var(--r-md);background:#fff;padding:0 10px;color:var(--c-ink-2);font-size:12px;font-weight:800}.member-chip.active,.model-chip:hover{border-color:var(--c-primary);background:var(--c-primary-softer);color:var(--c-primary-700)}.model-chip.add{border-style:dashed}.provider-avatar{width:24px;height:24px;flex:0 0 auto;display:inline-grid;place-items:center;border-radius:var(--r-sm);color:#fff;font-size:10px;font-weight:900}.model-avatar{overflow:hidden}.model-avatar img{width:100%;height:100%;display:block;border-radius:inherit;object-fit:contain}.model-avatar.with-icon{background:#fff;color:var(--c-ink)}.model-avatar.with-icon .avatar-fallback{display:none}.model-avatar.with-icon img[hidden]+.avatar-fallback{display:inline}.pa-openai{background:#171717}.pa-anthropic{background:#a45f38}.pa-google{background:var(--c-blue)}.pa-deepseek{background:#315ed8}.pa-mistral{background:#f2a13b}.pa-meta{background:var(--c-violet)}.pa-cohere{background:var(--c-green)}.arena-grid{flex:1 1;min-height:0;display:grid;grid-template-columns:repeat(4,minmax(230px,1fr));grid-gap:12px;gap:12px}.arena-grid[data-count="1"]{grid-template-columns:minmax(320px,640px)}.arena-grid[data-count="2"]{grid-template-columns:repeat(2,minmax(280px,1fr))}.arena-grid[data-count="3"]{grid-template-columns:repeat(3,minmax(240px,1fr))}.chat-column{min-height:420px;grid-template-rows:auto minmax(0,1fr) auto;border:1px solid var(--c-border);border-radius:var(--r-md);background:#fff;box-shadow:var(--sh-1);overflow:hidden}.chat-column,.chat-head{min-width:0;display:grid}.chat-head{min-height:54px;grid-template-columns:28px minmax(0,1fr) 32px;align-items:center;grid-gap:9px;gap:9px;border-bottom:1px solid var(--c-border);padding:10px}.chat-head b,.chat-head small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-head small{color:var(--c-muted);font-size:11px}.chat-messages{min-height:0;overflow-y:auto;padding:14px}.message-bubble{display:grid;grid-gap:6px;gap:6px;margin-bottom:12px}.message-bubble>div{border:1px solid var(--c-border);border-radius:var(--r-md);padding:10px 11px;white-space:pre-wrap;text-wrap:pretty}.message-bubble.user{justify-items:end}.message-bubble.user>div{max-width:92%;background:var(--c-primary);color:#fff;border-color:var(--c-primary)}.message-bubble.model>div{background:var(--c-panel)}.message-bubble small{display:inline-flex;gap:6px}.column-foot,.message-bubble small{color:var(--c-muted);font-size:11px}.column-foot{display:flex;justify-content:space-between;gap:8px;border-top:1px solid var(--c-border);padding:9px 10px}.unified-composer{display:grid;grid-template-columns:minmax(160px,220px) minmax(0,1fr) 42px;align-items:center;grid-gap:12px;gap:12px;border:1px solid var(--c-border);border-radius:var(--r-lg);background:#fff;padding:10px;box-shadow:var(--sh-2)}.composer-label{display:grid;grid-gap:2px;gap:2px}.composer-label span{color:var(--c-muted);font-size:12px}.unified-composer textarea{width:100%;min-height:46px;resize:none;border:1px solid var(--c-border);border-radius:var(--r-md);padding:11px 12px}.send-control{width:42px;height:42px}.mode-preview{flex:1 1;min-height:0;border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;background:#fff}.preview-toolbar{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid var(--c-border);background:var(--c-panel);padding:0 16px}.preview-toolbar span{color:var(--c-muted)}.preview-surface{min-height:470px;display:grid;grid-template-columns:220px minmax(0,1fr)}.preview-sidebar{border-right:1px solid var(--c-border);background:#fbf3ec;padding:24px}.preview-sidebar span{display:block;height:34px;margin-bottom:10px;border-radius:var(--r-md);background:#fff}.preview-main{padding:44px}.preview-main h2{margin:0 0 8px;font-size:28px}.preview-main p{max-width:560px;color:var(--c-muted)}.preview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,140px));grid-gap:14px;gap:14px;margin-top:28px}.preview-grid div{grid-gap:8px;gap:8px;justify-items:center;border:1px solid var(--c-border);background:var(--c-panel);padding:18px 10px}.preview-grid div,.preview-grid span{display:grid;border-radius:var(--r-md)}.preview-grid span{width:42px;height:42px;place-items:center;background:var(--c-ink);color:#fff;font-weight:900}.knowledge-base-view,.storage-view{min-height:100vh;overflow-y:auto;background:var(--c-bg);padding:40px}.kb-container{max-width:900px;margin:0 auto}.kb-header,.storage-header{margin-bottom:32px}.kb-title,.storage-title{color:var(--c-ink);font-size:28px;font-weight:700;margin:0 0 8px}.kb-subtitle,.storage-subtitle{color:var(--c-muted);font-size:14px;margin:0}.kb-upload-section{margin-bottom:32px}.kb-upload-area{width:100%;display:grid;justify-items:center;border:2px dashed var(--c-border-strong);border-radius:12px;background:var(--c-bg-elev);padding:48px 24px;text-align:center;transition:all .2s var(--ease)}.kb-upload-area:hover{border-color:var(--c-primary);background:var(--c-primary-softer)}.kb-upload-icon{color:var(--c-muted-2);margin-bottom:16px}.kb-upload-text{color:var(--c-ink-2);font-size:16px;font-weight:600;margin-bottom:8px}.kb-upload-hint{color:var(--c-muted-2);font-size:13px}.kb-file-input{display:none}.kb-documents-section{border-radius:12px;background:var(--c-bg-elev);box-shadow:var(--sh-2);padding:24px}.kb-section-header{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--c-border);margin-bottom:20px;padding-bottom:16px}.kb-section-title{color:var(--c-ink);font-size:18px;font-weight:600;margin:0}.kb-count{color:var(--c-muted);font-size:13px}.kb-doc-list{display:flex;flex-direction:column;gap:12px}.kb-doc-item{display:flex;align-items:center;gap:16px;border:1px solid var(--c-border);border-radius:8px;background:var(--c-bg);padding:16px;transition:all .2s var(--ease)}.kb-doc-item:hover{border-color:var(--c-border-strong);background:var(--c-hover)}.kb-doc-icon{width:48px;height:48px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border-radius:8px;color:#fff}.kb-doc-icon.pdf{background:var(--c-primary)}.kb-doc-icon.word{background:var(--c-primary-600)}.kb-doc-icon.md{background:var(--c-accent)}.kb-doc-info{flex:1 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var(--c-primary);border-radius:8px;background:var(--c-bg-elev);color:var(--c-primary);padding:8px 16px;font-size:13px;font-weight:600;transition:all .2s var(--ease)}.storage-upgrade-btn:hover{background:var(--c-primary);color:#fff}.storage-progress-wrapper{margin-bottom:24px}.storage-progress-info{display:flex;align-items:baseline;gap:4px;margin-bottom:12px}.storage-used{color:var(--c-ink);font-size:24px;font-weight:700}.storage-separator,.storage-total{color:var(--c-muted);font-size:16px}.storage-progress-bar{height:12px;overflow:hidden;border-radius:6px;background:var(--c-border);margin-bottom:8px}.storage-progress-fill{width:46%;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--c-primary) 0,var(--c-accent) 100%);transition:width .3s var(--ease)}.storage-remaining{color:var(--c-muted);font-size:13px}.storage-breakdown{display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--c-border);padding-top:24px}.storage-item{gap:12px;background:var(--c-bg);padding:12px}.storage-item,.storage-item-icon{display:flex;align-items:center;border-radius:8px}.storage-item-icon{width:36px;height:36px;flex-shrink:0;justify-content:center;color:#fff}.storage-item-icon.pdf{background:var(--c-primary)}.storage-item-icon.word{background:var(--c-primary-600)}.storage-item-icon.md{background:var(--c-accent)}.storage-item-info{flex:1 1}.storage-item-name{color:var(--c-ink);font-size:14px;font-weight:600;margin-bottom:2px}.storage-item-size{color:var(--c-muted);font-size:12px}.storage-plans{margin-top:40px}.storage-plans-title{margin-bottom:24px}.storage-plans-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:20px;gap:20px}.storage-plan-card{position:relative;border:2px solid var(--c-border);border-radius:12px;background:var(--c-bg-elev);padding:24px;transition:all .2s var(--ease)}.storage-plan-card:hover{border-color:var(--c-border-strong);box-shadow:var(--sh-2)}.storage-plan-card.popular{border-color:var(--c-primary);box-shadow:0 4px 12px rgba(255,107,74,.2)}.storage-plan-badge{position:absolute;top:-12px;left:50%;border-radius:12px;background:var(--c-primary);color:#fff;padding:4px 16px;font-size:12px;font-weight:600;transform:translateX(-50%)}.storage-plan-header{margin-bottom:20px}.storage-plan-name{color:var(--c-ink);font-size:18px;font-weight:600;margin:0 0 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var(--ease)}.storage-plan-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}.storage-plan-btn.primary{border-color:var(--c-primary);background:var(--c-primary);color:#fff}.storage-plan-btn.primary:hover{background:var(--c-primary-600)}.workflow-view{min-height:100vh;display:flex;flex-direction:column;gap:0;background:#fffaf5;padding:0}.wf-header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--c-border);background:#fff;padding:16px 28px}.wf-canvas-header-left,.wf-canvas-header-right,.wf-header-left,.wf-header-right{display:flex;align-items:center;gap:12px}.wf-canvas-header-right,.wf-header-right{gap:10px}.wf-logo{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary)}.wf-header-title{color:var(--c-ink);font-size:17px;font-weight:700;letter-spacing:0}.wf-content{flex:1 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var(--ease)}.wf-card:hover{border-color:var(--c-primary);box-shadow:var(--sh-2);transform:translateY(-2px)}.wf-card-icon{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:10px}.wf-card-name{display:flex;align-items:center;gap:6px;color:var(--c-ink);font-size:13.5px;font-weight:600;margin-bottom:4px}.wf-card-badge{border-radius:4px;padding:2px 6px;font-size:9px;font-weight:700;letter-spacing:.5px}.wf-card-badge.preset{background:#e0f2fe;color:#0369a1}.wf-card-badge.custom{background:var(--c-primary-soft);color:var(--c-primary-700)}.wf-card-desc{display:block;color:var(--c-muted);font-size:12px;line-height:1.5}.wf-card-actions{position:absolute;top:8px;right:8px;display:none;gap:4px}.wf-card:hover .wf-card-actions{display:flex}.wf-card-action-btn{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--c-border);border-radius:6px;background:#fff;color:var(--c-muted);transition:all .15s var(--ease)}.wf-card-action-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}.wf-card-action-btn.danger:hover{border-color:#f2c2bd;background:#fff5f3;color:#e74c3c}.wf-empty{grid-column:1/-1;display:grid;justify-items:center;padding:32px 0;color:var(--c-muted);text-align:center}.wf-empty svg{margin-bottom:8px;opacity:.5}.wf-empty p{margin:0;font-size:13px;font-weight:600}.wf-empty small{margin-top:2px;font-size:11.5px;opacity:.7}.wf-canvas-view{display:none;flex-direction:column;height:100vh;background:#f8fafc}.workflow-view[data-canvas=open] .wf-canvas-view{display:flex}.workflow-view[data-canvas=open] .wf-content{display:none}.wf-canvas-header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--c-border);background:#fff;padding:12px 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