._app_App_M2Z5r4{--topbar-height:84px;min-height:100vh;display:flex}._skipLink_App__HxrSm{z-index:100;background:#fff;padding:12px;position:fixed;top:-80px;left:12px}._skipLink_App__HxrSm:focus{top:10px}._sidebar_App_fYs7RR{background:var(--surface-alt);border-right:1px solid var(--line);flex-direction:column;flex-shrink:0;width:236px;height:100vh;padding:29px 18px 16px;display:flex;position:sticky;top:0;overflow-y:auto}._sidebar_App_fYs7RR>*{flex-shrink:0}._brand_App_bjsWC_{color:var(--action-ink);letter-spacing:3px;align-items:center;gap:12px;padding:0 12px;font-size:27px;font-weight:750;display:flex}._brand_App_bjsWC_ small{color:var(--muted);letter-spacing:1px;margin-top:2px;font-size:8px;display:block}._brandIcon_App_hkD4QP{background:var(--blue);color:#fff;border-radius:10px 3px;place-items:center;width:40px;height:44px;display:grid}._workspaceLabel_App_TkRmwS{background:var(--surface-raised);border-radius:var(--radius-md);color:var(--action-ink);align-items:center;gap:10px;margin-top:33px;padding:13px 9px;font-size:13px;display:flex}._workspaceLabel_App_TkRmwS small{margin-top:3px;font-size:10px;display:block}._workspaceLabel_App_TkRmwS>svg{color:var(--muted);margin-left:auto}._workspaceAvatar_App_UkXrZM,._userAvatar_App_dOtfS_{background:var(--surface-alt);width:30px;height:30px;color:var(--muted);border-radius:50%;flex-shrink:0;place-items:center;font-size:12px;display:grid}._navLabel_App_r-swM9{letter-spacing:1.5px;color:var(--muted);margin:31px 13px 13px;font-size:10px}._sidebar_App_fYs7RR nav{flex-direction:column;gap:5px;display:flex}._sidebar_App_fYs7RR nav a{border-radius:var(--radius-md);min-height:48px;color:var(--muted);align-items:center;gap:12px;padding:0 13px;font-size:13px;display:flex}._sidebar_App_fYs7RR nav a small,._sidebar_App_fYs7RR nav a em{font-variant-numeric:tabular-nums;color:var(--muted);margin-left:auto;font-size:10px;font-style:normal}._sidebar_App_fYs7RR nav a em{background:var(--surface-alt);color:var(--muted);border-radius:4px;padding:2px 6px}._sidebar_App_fYs7RR nav a._navActive_App_wbyUdI{background:var(--blue);color:#fff;box-shadow:0 4px 10px var(--shadow-color)}._sidebar_App_fYs7RR nav a._navActive_App_wbyUdI em{color:#fff;background:#ffffff25}._sidebar_App_fYs7RR nav a._navActive_App_wbyUdI small{color:var(--muted)}._sidebarBottom_App_gW2CeC{margin-top:auto;padding:24px 6px 0}._localInfo_App_Bv7oLO{color:var(--action-ink);align-items:flex-start;gap:10px;padding:10px 4px 20px;font-size:12px;display:flex}._localInfo_App_Bv7oLO small{margin-top:4px;font-size:10px;display:block}._statusDot_App_S1Pih9{background:var(--surface-selected);border-radius:50%;flex-shrink:0;width:6px;height:6px;margin-top:6px;display:inline-block}._sidebarBottom_App_gW2CeC>button{color:var(--muted);background:0 0;border:0;align-items:center;gap:10px;min-height:40px;padding:11px 4px;font-size:12px;display:flex}._version_App_oXEf-S{color:var(--muted);margin:17px 4px 0;font-size:10px;display:block}._releaseVersion_App_4dBay_{color:var(--muted);white-space:nowrap;font-size:11px;font-weight:600}._knowledgeTools_App_NEjyvS{flex-wrap:wrap;gap:8px;margin:10px 0;display:flex}._knowledgeTools_App_NEjyvS button,._knowledgeUpload_App_U3gHOE button{border:1px solid var(--border-strong);font:inherit;background:var(--surface-raised);color:var(--action-ink);cursor:pointer;border-radius:11px;justify-content:center;align-items:center;gap:7px;padding:9px 13px;font-size:12px;font-weight:600;display:inline-flex}._knowledgeUpload_App_U3gHOE{border:1px dashed var(--border-strong);border-radius:13px;flex-wrap:wrap;align-items:center;gap:10px;margin:12px 0;padding:12px;display:flex}._knowledgeUpload_App_U3gHOE>span{margin-right:auto;font-size:12px;font-weight:600}._knowledgeUpload_App_U3gHOE small{color:var(--muted);font-size:10px;font-weight:400}._mainShell_App_vv3am6{flex:1;min-width:0}._topbar_App_3TR5GE{z-index:65;-webkit-backdrop-filter:blur(22px)saturate(160%);backdrop-filter:blur(22px)saturate(160%);min-height:84px;box-shadow:0 4px 20px var(--shadow-color), inset 0 1px 0 #ffffffb3;background:#f9fcffad;border-bottom:1px solid #c7d8eea6;justify-content:space-between;align-items:center;gap:16px;padding:10px 28px;font-size:12px;display:flex;position:sticky;top:0}._topbar_App_3TR5GE>div{color:var(--muted);align-items:center;gap:12px;display:flex}._topbar_App_3TR5GE strong{color:var(--action-ink);font-weight:500}._separator_App_6LGS6d{color:var(--muted)}._topbar_App_3TR5GE ._topbarRight_App_9ijomc{flex-wrap:wrap;flex-shrink:1;justify-content:flex-end;gap:14px;min-width:0;margin-left:auto}._topbar_App_3TR5GE ._topbarWorkspace_App_BEFKpY{border:1px solid var(--border-strong);background:var(--surface-raised);width:42px;height:42px;color:var(--ink);border-radius:50%;flex-shrink:0;place-items:center;padding:0;font-size:12px;display:grid}._breadcrumb_App_ty4Zwr{white-space:nowrap;flex-shrink:0}._workspaceHome_App_h27hH2{color:inherit;font:inherit;font-weight:inherit;cursor:pointer;background:0 0;border:0;padding:6px 0}._topbar_App_3TR5GE ._breadcrumb_App_ty4Zwr{white-space:normal;flex:1;min-width:0}._topbar_App_3TR5GE [data-workspace-title]{flex-wrap:wrap;align-items:center;display:flex}._topbar_App_3TR5GE ._workspaceStatus_App_oiZW9f{min-width:0;color:var(--action-ink);opacity:1;flex:1;justify-content:center;gap:10px;transition:opacity .2s ease-out,transform .2s ease-out}._topbar_App_3TR5GE ._workspaceStatus_App_oiZW9f._statusLeaving_App__hFPJR{opacity:0;pointer-events:none;transform:translateY(-4px)}@media (prefers-reduced-motion:reduce){._topbar_App_3TR5GE 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srgb, #a7343b 45%, var(--line))}@keyframes _statusRiseIn_App_jNOoqc{0%{opacity:0;transform:translate(-50%,12px)}to{opacity:1;transform:translate(-50%)}}@media (prefers-reduced-motion:reduce){._workspaceStatus_App_oiZW9f{animation:none}._workspaceStatus_App_oiZW9f._statusLeaving_App__hFPJR{transition:opacity .16s;transform:translate(-50%)}}._statusCopy_App_hI7Hup{flex-direction:column;gap:3px;min-width:0;line-height:1.5;display:flex}._topbar_App_3TR5GE ._statusCopy_App_hI7Hup strong{color:var(--action-ink);font-size:13px;font-weight:600}._statusCopy_App_hI7Hup>span{color:var(--muted);overflow-wrap:anywhere;font-size:12px}._workspaceStatus_App_oiZW9f>button{white-space:nowrap;flex-shrink:0;padding:6px 10px;font-size:12px}._topbar_App_3TR5GE ._workspaceStatusError_App_zWkh4K,._workspaceStatusError_App_zWkh4K>svg,._workspaceStatusError_App_zWkh4K ._statusCopy_App_hI7Hup strong{color:#a7343b}._topbar_App_3TR5GE ._breadcrumb_App_ty4Zwr>svg{flex-shrink:0}._statusSpinner_App_c0bN4b{animation:1.4s linear infinite _statusSpin_App_hF5lxz}@keyframes _statusSpin_App_hF5lxz{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){._statusSpinner_App_c0bN4b{animation:none}}._mobileMenu_App_Qpjh_y{display:none;position:relative}._mobileMenu_App_Qpjh_y summary{cursor:pointer;color:var(--blue);padding:9px 0}._mobileMenu_App_Qpjh_y>div{border:1px solid var(--line);z-index:55;width:120px;box-shadow:0 4px 12px var(--shadow-color);background:#fff;border-radius:5px;padding:6px;position:absolute;top:35px;right:0}._mobileMenu_App_Qpjh_y button{text-align:left;width:100%;color:var(--ink);background:#fff;border:0;padding:12px 5px;font-size:12px;display:block}._saved_App_Al1v9w,._saveError_App_S7iC1e{align-items:center;gap:7px;font-size:11px;display:flex}._saved_App_Al1v9w ._statusDot_App_S1Pih9{margin:0}._saveError_App_S7iC1e{color:#b44538}._main_App_fvRk1P{max-width:1760px;margin:0 auto;padding:35px 36px 55px}._main_App_fvRk1P:has([data-library-area=active]){max-width:none;min-height:calc(100dvh - 88px)}._main_App_fvRk1P:has([data-whiteboard-editor=active]){max-width:none;padding:12px 0 0}html[data-theme] ._main_App_fvRk1P:has([data-whiteboard-editor=active]){max-width:none;padding:12px 0 0}._main_App_fvRk1P:has([data-handout-editor=active],[data-question-editor=standalone]){max-width:none;padding:24px 24px 30px}._mainWithEditor_App_ePDsp8{padding-right:24px}._pageHeading_App_RQ27sq{justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px;display:flex}._pageHeading_App_RQ27sq h1{align-items:center;gap:12px;display:flex}._pageHeading_App_RQ27sq p{color:var(--muted);margin-top:9px;font-size:12px;line-height:1.9}._eyebrow_App_OPBsJ_{letter-spacing:2px;color:var(--muted);margin-bottom:10px;font-size:10px}._phaseBadge_App_zkqcCh{border:1px solid var(--line);color:var(--muted);white-space:nowrap;border-radius:4px;padding:7px 10px;font-size:9px}._primary_App_ryYE90,._secondary_App_svCZXQ,._textButton_App_7aa1-e,._iconButton_App_NbD-tp{border-radius:var(--radius-sm);white-space:nowrap;justify-content:center;align-items:center;gap:8px;min-height:40px;font-size:12px;font-weight:600;display:inline-flex}._primary_App_ryYE90{background:var(--blue);border:1px solid var(--blue);color:#fff;padding:10px 16px;box-shadow:0 2px 6px #2563eb42}._primary_App_ryYE90:active{box-shadow:none;transform:translateY(1px)}._secondary_App_svCZXQ{border:1px solid var(--border-strong);color:var(--action-ink);background:#fff;padding:9px 13px}._textButton_App_7aa1-e{color:var(--blue);background:0 0;border:none;padding:6px 0}._iconButton_App_NbD-tp{color:var(--muted);background:0 0;border:none;min-width:36px;min-height:36px;padding:8px}._importGrid_App_zk_7A2{grid-template-columns:1fr 1.05fr;gap:24px;display:grid}._uploadPanel_App_Ig6neC{border:1px dashed var(--border-strong);border-radius:var(--radius-lg);background:#fff;flex-direction:column;justify-content:center;align-items:center;min-height:474px;padding:28px 30px;display:flex}._uploadIcon_App_r0pJmc{color:var(--muted);background:var(--surface-alt);border-radius:18px;place-items:center;width:76px;height:76px;margin:6px 0 23px;display:grid}._uploadPanel_App_Ig6neC h2{font-size:19px}._uploadPanel_App_Ig6neC>p{color:var(--muted);margin:11px 0 23px;font-size:12px}._uploadPanel_App_Ig6neC>small{margin-top:14px;font-size:10px}._importNote_App_u_IeT0{text-align:left;background:var(--surface-raised);border-radius:var(--radius-sm);width:100%;color:var(--muted);margin:23px 0 6px;padding:14px 17px;font-size:11px}._importNote_App_u_IeT0 strong{font-weight:550}._importNote_App_u_IeT0 p{color:var(--muted);margin-top:4px;line-height:1.8}._demoPanel_App__KmtLa{background:var(--surface-alt);border-radius:var(--radius-lg);flex-direction:column;display:flex;overflow:hidden}._demoTop_App_ZRjR4P{color:var(--muted);justify-content:space-between;align-items:center;padding:20px 23px 0;font-size:10px;display:flex}._badge_App_2CzHo0{color:var(--muted);background:#ffffffc0;border-radius:4px;padding:5px 9px;font-size:10px;display:inline-block}._sampleCover_App_IDS6QE{height:230px;padding:23px 42px 0;overflow:hidden}._samplePaper_App_5ToGCX{background:#fff;border-radius:2px;width:90%;min-height:250px;margin:0 auto;padding:23px 27px;position:relative;transform:rotate(-3deg);box-shadow:0 8px 25px #153c7114}._samplePaper_App_5ToGCX small{color:#7c8ca2;font-size:9px}._samplePaper_App_5ToGCX h3{letter-spacing:3px;color:#213c67;margin-top:10px;font-family:STSong,SimSun,serif;font-size:27px}._samplePaper_App_5ToGCX p{color:#8795a7;margin-top:8px;font-size:9px}._samplePaper_App_5ToGCX img{width:90%;height:auto;margin:26px auto 15px;display:block}._paperLines_App_RR3TGc{border-top:1px solid #dfe6ef;border-bottom:1px solid #dfe6ef;height:25px}._sampleSeal_App_-fUlzL{text-align:center;letter-spacing:2px;color:#7b93b8;border:1px solid #a0b3d1;width:32px;height:39px;padding-top:4px;font-size:10px;line-height:1.45;position:absolute;top:28px;right:22px}._demoBottom_App_09PF6A{box-shadow:0 -3px 15px var(--shadow-color);background:#fff;flex:1;padding:23px;position:relative}._demoBottom_App_09PF6A h2{font-size:17px}._demoBottom_App_09PF6A p{color:var(--muted);margin:9px 0 17px;font-size:11px;line-height:1.85}._demoBottom_App_09PF6A small{margin-top:11px;font-size:10px;display:block}._workflowStrip_App_O1lIpM{border-top:1px solid var(--line);grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;padding:25px 4px;display:grid}._workflowStrip_App_O1lIpM>div{gap:13px;display:flex}._workflowStrip_App_O1lIpM b{color:var(--muted);font-size:26px;font-weight:300;line-height:1.2}._workflowStrip_App_O1lIpM h3{margin-bottom:7px;font-size:12px;font-weight:550}._workflowStrip_App_O1lIpM p{color:var(--muted);font-size:10px;line-height:1.7}._sources_App_rFMHW8{margin-top:15px}._sources_App_rFMHW8 h2{margin-bottom:18px;font-size:15px}._sources_App_rFMHW8 h2 span{color:var(--muted);margin-left:8px;font-weight:400}._sourcesHeader_App_7ovedt{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}._sourcesHeader_App_7ovedt h2{margin-bottom:0}._sourceItem_App_W9PICw{border-bottom:1px solid var(--line);background:#fff;align-items:center;gap:14px;padding:14px 16px;font-size:12px;display:flex}._sourceItem_App_W9PICw>svg{color:var(--muted);flex-shrink:0}._sourceItem_App_W9PICw>div{overflow-wrap:anywhere;flex:1;min-width:0}._sourceItem_App_W9PICw input[type=checkbox]{width:16px;height:16px;accent-color:var(--blue);flex-shrink:0}._sourceItem_App_W9PICw button{flex-shrink:0}._sources_App_rFMHW8 small{font-size:10px;display:block}._previewOverlay_App_sIrLPE{z-index:50;background:#101e358c;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}._previewModal_App_m741Kg{border-radius:var(--radius-md);background:#fff;flex-direction:column;width:100%;max-width:920px;max-height:86vh;display:flex;overflow:hidden;box-shadow:0 12px 40px #08142859}._previewHeader_App_p8sadA{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}._previewHeader_App_p8sadA h3{font-size:15px}._previewBody_App_NSQeWS{flex-direction:column;gap:16px;padding:18px 20px;display:flex;overflow-y:auto}._previewStages_App_m1MZsb{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}._previewStages_App_m1MZsb figure{border:1px solid var(--line);border-radius:6px;margin:0;overflow:hidden}._previewStages_App_m1MZsb img{object-fit:contain;background:var(--surface-raised);width:100%;height:auto;max-height:240px;display:block}._previewStages_App_m1MZsb figcaption{color:var(--action-ink);background:var(--surface-raised);padding:6px 10px;font-size:12px;font-weight:600}._previewSubhead_App_sgFVh9{color:var(--action-ink);margin:4px 0 0;font-size:13px;font-weight:600}._previewEmpty_App_jogNXV{color:var(--muted);padding:24px}._previewGrid_App_Mgymxj{flex-direction:column;gap:14px;display:flex}._previewGrid_App_Mgymxj figure{border:1px solid var(--line);border-radius:6px;margin:0;overflow:hidden}._previewGrid_App_Mgymxj img{width:100%;height:auto;display:block}._previewGrid_App_Mgymxj figcaption{color:var(--action-ink);background:var(--surface-raised);padding:7px 12px;font-size:12px;font-weight:600}._reviewLayout_App_tUerYv{grid-template-columns:minmax(0,1fr);align-items:start;gap:24px;display:grid}._reviewLayout_App_tUerYv:has(._editor_App_k-qQG6){grid-template-columns:minmax(350px,1fr) minmax(390px,.95fr)}._reviewLayout_App_tUerYv:has([data-question-editor=standalone]){grid-template-columns:minmax(0,1fr)}._divider_App__0MYOt{cursor:col-resize;background:var(--surface-alt);border-left:1px solid var(--line);border-right:1px solid var(--line);align-self:stretch}._divider_App__0MYOt:hover,._divider_App__0MYOt:active{background:var(--surface-alt);border-color:var(--border-strong)}._sidebarHidden_App_LmL1qb ._sidebar_App_fYs7RR{display:none}._listPane_App_3ilGIp{min-width:0;overflow:hidden}._listHost_App_YejNLi{display:contents}._listHost_App_YejNLi[hidden]{display:none}._count_App_nLZaG0{background:var(--surface-alt);color:var(--muted);border-radius:5px;padding:6px 8px;font-size:13px;font-weight:500;line-height:1}._reviewNotice_App_VpxDpe{background:var(--surface-alt);border-radius:var(--radius-md);color:var(--muted);align-items:center;gap:12px;margin-bottom:22px;padding:15px 17px;display:flex}._reviewNotice_App_VpxDpe>._statusDot_App_S1Pih9{background:var(--surface-selected);margin:0}._reviewNotice_App_VpxDpe strong{color:var(--action-ink);font-size:15px;font-weight:700;line-height:1.45;display:block}._reviewNotice_App_VpxDpe small{color:var(--action-ink);margin-top:3px;font-size:13px;font-weight:500;line-height:1.5;display:block}._reviewNotice_App_VpxDpe{border:1px solid var(--border-strong);border-left:5px solid var(--blue);background:var(--surface-alt)}._reviewNotice_App_VpxDpe>svg{color:var(--muted);flex-shrink:0}._dangerButton_App_wU80Cz{background:var(--surface-raised);color:#a52b36;border:1px solid #dcadb0;border-radius:6px;justify-content:center;align-items:center;gap:7px;min-height:40px;padding:10px 14px;font-size:13px;font-weight:600;display:inline-flex}._dangerButton_App_wU80Cz:hover:not(:disabled){background:var(--surface-alt);border-color:#ba3f4a}._headerActions_App_Q9hmnL button:disabled{opacity:1;color:var(--muted);border:1px solid 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