diff --git a/SHA256SUMS b/SHA256SUMS
index f7aaf89..c680be2 100644
--- a/SHA256SUMS
+++ b/SHA256SUMS
@@ -139,7 +139,7 @@ d7d55b06ead173b4c23a277fa39800cadfc18f1163c500e8617cfc1f4ee0dea9  pigway_frame_f
 1f77efa9acfb40872593e3b7c475d972b960cb9f21e9afb936add03c3f2dd542  pigway_frame_flow/web/features.js
 a07ea444ab4ac75ea11e1188a431b48195353b1e08f7e80f3b931e8097ea6221  pigway_frame_flow/web/i18n.js
 6385ec8b0383fa9bdbb23c4c685c8ef1afd7926fd74c8032811e647808548255  pigway_frame_flow/web/index.html
-b0f94a4886300227414f2ba695b74fd8d27a086528b7ecb69959454dafb75e56  pigway_frame_flow/web/libraries.js
+5ab3ce05c6a1516dd4268cf221c5e79bf81317db2db74610ad519e84184a9854  pigway_frame_flow/web/libraries.js
 0fa494a3fbd456c754bbea3f7f050be139e32e3b42b09a1ed953094087437210  pigway_frame_flow/web/logo-symbol.svg
 9dcf0419d0292efce8ead7309dc70b4afd27dd24fe82cf9e673682342650f4da  pigway_frame_flow/web/source-browser.js
 b7d46a2826b217ed760d99690e28b48f60e575f7f580d0f37e416889902f5f9b  pigway_frame_flow/web/style.css
diff --git a/pigway_frame_flow/web/libraries.js b/pigway_frame_flow/web/libraries.js
index cb2b1e9..c7759d7 100644
--- a/pigway_frame_flow/web/libraries.js
+++ b/pigway_frame_flow/web/libraries.js
@@ -87,8 +87,8 @@ async function terminalLibraryPage(epoch,sources,terminals){
  const [page,plans]=await Promise.all([api('/api/v1/library-terminals/'+encodeURIComponent(terminal.id)+'/images?limit=30&offset='+libraryUI.offset),terminal.binding?api('/api/v1/generation-plans?source_id='+encodeURIComponent(terminal.binding.source_id)):Promise.resolve([])]);
  if(epoch!==state.epoch)return;
  const source=sources.find(s=>s.id===terminal.binding?.source_id),plan=plans.find(p=>p.id===terminal.binding?.plan_id);
- $('#library-content').innerHTML=`<section class="card"><div class="field"><label for="library-terminal">${tr('终端','Terminal')}</label><select id="library-terminal">${terminals.map(t=>`<option value="${esc(t.id)}" ${t.id===terminal.id?'selected':''}>${esc(terminalLabel(t))}</option>`).join('')}</select></div><h2>${esc(terminalLabel(terminal))}</h2><p>${tr('来源图库：','Source library: ')}${esc(source?.name||tr('未绑定','Not bound'))} · ${tr('生成方案：','Generation plan: ')}${esc(plan?.name||tr('未选择','Not selected'))}</p><p class="hint">${terminal.transport_supported?tr('生成、上传和设备确认分别记录；已生成不等于已显示。','Generation, upload and device confirmation are tracked separately. Generated does not mean displayed.'):tr('当前手表屏幕 410×502，传输尚未接入；这里管理生成成品。','Current watch screen: 410×502. Transfer is not connected; this library manages generated versions.')}</p><div class="actions"><button id="library-binding" class="primary">${tr('设置来源与方案（各单选）','Bind one source and one plan')}</button>${terminal.binding?`<button id="library-unbind">${tr('解除绑定','Unbind')}</button><button id="library-to-source">${tr('查看来源与生成版本','View source and versions')}</button>`:''}<button id="library-old-terminal">${terminal.kind==='watch'?tr('旧版小图图库','Legacy watch gallery'):tr('设备已有云端图片','Existing device cloud images')}</button></div></section><div class="gallery terminal-library-gallery">${page.items.map((v,i)=>`<article class="card image-card"><button class="image-preview" data-terminal-preview="${i}"><img class="thumb" alt="${esc(v.name)}" data-src="${esc(v.url)}" style="object-fit:contain;aspect-ratio:${v.plan.width}/${v.plan.height}"></button><h3>${esc(v.name)}</h3><small>${v.plan.width} × ${v.plan.height} · ${esc(v.plan.name)}</small><small>${esc(libraryStatus(v.delivery_status))} · ${esc(fmt(v.created_at))}</small><div class="actions"><button data-terminal-preview="${i}">${tr('预览','Preview')}</button><button data-terminal-download="${i}">${tr('下载图片','Download image')}</button><button data-terminal-settings="${i}">${tr('生成参数','Generation settings')}</button>${v.operation?`<button data-terminal-operation="${i}">${tr('推送记录','Delivery history')}</button>`:''}<button data-terminal-send="${i}" ${!terminal.transport_supported||!liveWriteAllowed()||['QUEUED','RENDERING','UPLOADING','SYNCING','UNKNOWN'].includes(v.delivery_status)?'disabled':''} title="${terminal.transport_supported?(liveWriteAllowed()?'':esc(t('readOnlyWarning'))):tr('手表传输尚未接入','Watch transfer is not connected')}">${tr('推送到终端','Send to terminal')}</button></div></article>`).join('')}</div>${page.items.length?'':`<section class="card empty">${tr('尚无对应成品。绑定来源与方案后，在来源图库选入照片并生成。','No matching versions. Bind a source and plan, then import and generate in the source library.')}</section>`}<div class="actions library-pagination"><button id="terminal-prev" ${libraryUI.offset===0?'disabled':''}>${tr('上一页','Previous')}</button><button id="terminal-next" ${libraryUI.offset+30>=page.total?'disabled':''}>${tr('下一页','Next')}</button><span>${tr('共','Total')} ${page.total} ${tr('个成品版本','generated versions')}</span></div>`;
- $('#library-terminal').onchange=()=>{libraryUI.terminal=$('#library-terminal').value;libraryUI.offset=0;state.tab=libraryUI.terminal==='watch'?'watch':'cloud';if(libraryUI.terminal!=='watch')state.device=libraryUI.terminal;return navigate();};
+ $('#library-content').innerHTML=`<section class="card"><div class="tabs gallery-tabs terminal-choice" role="group" aria-label="${tr('终端','Terminal')}">${terminals.map(t=>`<button type="button" data-library-terminal="${esc(t.id)}" class="${t.id===terminal.id?'active':''}" aria-pressed="${t.id===terminal.id}">${esc(terminalLabel(t))}</button>`).join('')}</div><h2>${esc(terminalLabel(terminal))}</h2><p>${tr('来源图库：','Source library: ')}${esc(source?.name||tr('未绑定','Not bound'))} · ${tr('生成方案：','Generation plan: ')}${esc(plan?.name||tr('未选择','Not selected'))}</p><p class="hint">${terminal.transport_supported?tr('生成、上传和设备确认分别记录；已生成不等于已显示。','Generation, upload and device confirmation are tracked separately. Generated does not mean displayed.'):tr('当前手表屏幕 410×502，传输尚未接入；这里管理生成成品。','Current watch screen: 410×502. Transfer is not connected; this library manages generated versions.')}</p><div class="actions"><button id="library-binding" class="primary">${tr('设置来源与方案（各单选）','Bind one source and one plan')}</button>${terminal.binding?`<button id="library-unbind">${tr('解除绑定','Unbind')}</button><button id="library-to-source">${tr('查看来源与生成版本','View source and versions')}</button>`:''}<button id="library-old-terminal">${terminal.kind==='watch'?tr('旧版小图图库','Legacy watch gallery'):tr('设备已有云端图片','Existing device cloud images')}</button></div></section><div class="gallery terminal-library-gallery">${page.items.map((v,i)=>`<article class="card image-card"><button class="image-preview" data-terminal-preview="${i}"><img class="thumb" alt="${esc(v.name)}" data-src="${esc(v.url)}" style="object-fit:contain;aspect-ratio:${v.plan.width}/${v.plan.height}"></button><h3>${esc(v.name)}</h3><small>${v.plan.width} × ${v.plan.height} · ${esc(v.plan.name)}</small><small>${esc(libraryStatus(v.delivery_status))} · ${esc(fmt(v.created_at))}</small><div class="actions"><button data-terminal-preview="${i}">${tr('预览','Preview')}</button><button data-terminal-download="${i}">${tr('下载图片','Download image')}</button><button data-terminal-settings="${i}">${tr('生成参数','Generation settings')}</button>${v.operation?`<button data-terminal-operation="${i}">${tr('推送记录','Delivery history')}</button>`:''}<button data-terminal-send="${i}" ${!terminal.transport_supported||!liveWriteAllowed()||['QUEUED','RENDERING','UPLOADING','SYNCING','UNKNOWN'].includes(v.delivery_status)?'disabled':''} title="${terminal.transport_supported?(liveWriteAllowed()?'':esc(t('readOnlyWarning'))):tr('手表传输尚未接入','Watch transfer is not connected')}">${tr('推送到终端','Send to terminal')}</button></div></article>`).join('')}</div>${page.items.length?'':`<section class="card empty">${tr('尚无对应成品。绑定来源与方案后，在来源图库选入照片并生成。','No matching versions. Bind a source and plan, then import and generate in the source library.')}</section>`}<div class="actions library-pagination"><button id="terminal-prev" ${libraryUI.offset===0?'disabled':''}>${tr('上一页','Previous')}</button><button id="terminal-next" ${libraryUI.offset+30>=page.total?'disabled':''}>${tr('下一页','Next')}</button><span>${tr('共','Total')} ${page.total} ${tr('个成品版本','generated versions')}</span></div>`;
+ document.querySelectorAll('[data-library-terminal]').forEach(b=>b.onclick=()=>{if(b.dataset.libraryTerminal===libraryUI.terminal)return;libraryUI.terminal=b.dataset.libraryTerminal;libraryUI.offset=0;state.tab=libraryUI.terminal==='watch'?'watch':'cloud';if(libraryUI.terminal!=='watch')state.device=libraryUI.terminal;return navigate();});
  bind('library-binding',()=>terminalBindingEditor(terminal,sources));bind('library-unbind',()=>confirmDialog(tr('解除终端绑定？已有图片保留，后续来源任务不再向此终端输出。','Unbind this terminal? Images are kept; future source tasks will not output to it.'),async()=>{await api('/api/v1/library-terminals/'+encodeURIComponent(terminal.id)+'/binding',{method:'DELETE'});await navigate();}));
  bind('library-to-source',()=>{libraryUI.source=terminal.binding.source_id;libraryUI.plan=terminal.binding.plan_id;libraryUI.offset=0;state.tab='local';return navigate('gallery');});
  bind('library-old-terminal',()=>{if(terminal.id!=='watch')state.device=terminal.id;return libraryLegacy(terminal.id==='watch'?'watch':'cloud');});