diff --git a/docs/openapi.json b/docs/openapi.json
index 0524db4..456f826 100644
--- a/docs/openapi.json
+++ b/docs/openapi.json
@@ -14203,6 +14203,17 @@
       },
       "Asset": {
         "properties": {
+          "source_path": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "title": "Source Path"
+          },
           "starred": {
             "type": "boolean",
             "title": "Starred",
@@ -16227,6 +16238,17 @@
             ],
             "title": "Caption"
           },
+          "source_path": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "title": "Source Path"
+          },
           "provider_preview": {
             "type": "boolean",
             "title": "Provider Preview",
@@ -16346,6 +16368,19 @@
             "minLength": 1,
             "title": "Location"
           },
+          "nas_root_path": {
+            "anyOf": [
+              {
+                "type": "string",
+                "maxLength": 2048,
+                "pattern": "^/"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "title": "Nas Root Path"
+          },
           "recursive": {
             "type": "boolean",
             "title": "Recursive",
@@ -16513,6 +16548,19 @@
             "minLength": 1,
             "title": "Location"
           },
+          "nas_root_path": {
+            "anyOf": [
+              {
+                "type": "string",
+                "maxLength": 2048,
+                "pattern": "^/"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "title": "Nas Root Path"
+          },
           "recursive": {
             "type": "boolean",
             "title": "Recursive",
diff --git a/pigway_frame_flow/display/service.py b/pigway_frame_flow/display/service.py
index da6e5d6..04884c6 100644
--- a/pigway_frame_flow/display/service.py
+++ b/pigway_frame_flow/display/service.py
@@ -392,7 +392,24 @@ class DisplayService:
                         "UPDATE operations SET result=? WHERE id=?",
                         (encode({"photo_attempts": attempts}), operation_id),
                     )
-                return self.assets.put(rendered, name, "cache" if staging else "images")
+                asset = self.assets.put(
+                    rendered, name, "cache" if staging else "images"
+                )
+                self.db.execute(
+                    "INSERT OR REPLACE INTO asset_sources VALUES(?,?)",
+                    (
+                        asset["asset_id"],
+                        encode(
+                            {
+                                "type": "photo_source",
+                                "source_id": content.source_id,
+                                "item_id": item["id"],
+                                "source_path": item.get("source_path"),
+                            }
+                        ),
+                    ),
+                )
+                return self.assets.info(asset["asset_id"])
             raise FlowError(
                 E.INVALID_REQUEST, "No decodable photo found within 5 candidates"
             )
diff --git a/pigway_frame_flow/models.py b/pigway_frame_flow/models.py
index 5b9cada..b35ece4 100644
--- a/pigway_frame_flow/models.py
+++ b/pigway_frame_flow/models.py
@@ -375,6 +375,7 @@ class Readiness(BaseModel):
 
 
 class Asset(BaseModel):
+    source_path: str | None = None
     starred: bool = False
     origin: Literal["manual", "task", "external", "template", "unknown"] = "unknown"
     job_id: str | None = None
diff --git a/pigway_frame_flow/providers/photo_sources.py b/pigway_frame_flow/providers/photo_sources.py
index 176a68f..fefcf3f 100644
--- a/pigway_frame_flow/providers/photo_sources.py
+++ b/pigway_frame_flow/providers/photo_sources.py
@@ -32,6 +32,7 @@ class PhotoSourceInput(StrictModel):
         "local", "synology-photos", "webdav", "google-drive", "alipan", "baidu"
     ]
     location: str = Field(min_length=1, max_length=2048)
+    nas_root_path: str | None = Field(default=None, max_length=2048, pattern=r"^/")
     recursive: bool = True
     enabled: bool = True
     catalog_limit: int = Field(default=10000, ge=1, le=100000)
@@ -62,6 +63,7 @@ class PhotoItem(StrictModel):
     id: str
     name: str
     caption: dict[str, str] | None = None
+    source_path: str | None = None
     provider_preview: bool = False
     orientation: Literal["landscape", "portrait", "square"] | None = None
     width: int | None = None
@@ -492,6 +494,13 @@ class PhotoSources:
                         "id": str(row["id"]),
                         "name": row["filename"],
                         "provider_preview": True,
+                        "source_path": (
+                            source.nas_root_path.rstrip("/")
+                            + "/"
+                            + relative.lstrip("/")
+                            if source.nas_root_path
+                            else "/" + relative.lstrip("/")
+                        ),
                         "caption": caption if source.folder_caption else None,
                         "width": width,
                         "height": height,
diff --git a/pigway_frame_flow/renderers/images.py b/pigway_frame_flow/renderers/images.py
index 0771856..cc2673c 100644
--- a/pigway_frame_flow/renderers/images.py
+++ b/pigway_frame_flow/renderers/images.py
@@ -134,7 +134,13 @@ class Assets:
         if not row:
             raise FlowError(E.NOT_FOUND, "Asset not found", 404)
         meta = self.db.one("SELECT * FROM asset_metadata WHERE asset_id=?", (asset_id,))
+        provenance = self.db.one(
+            "SELECT payload FROM asset_sources WHERE asset_id=?", (asset_id,)
+        )
         return {
+            "source_path": json.loads(provenance["payload"]).get("source_path")
+            if provenance
+            else None,
             "starred": bool(meta and meta["starred"]),
             "origin": meta["origin"] if meta else "unknown",
             "job_id": meta["job_id"] if meta else None,
diff --git a/pigway_frame_flow/web/app.js b/pigway_frame_flow/web/app.js
index 20df0cd..e4a1704 100644
--- a/pigway_frame_flow/web/app.js
+++ b/pigway_frame_flow/web/app.js
@@ -128,7 +128,7 @@ const views={
  const destinations=galleryDestinations();if(!destinations.some(d=>d.id===state.tab))state.tab=destinations[0]?.id||'local';
  const key=JSON.stringify([state.device,state.tab,state.assetOffset||0,state.assetOrigin||'all',state.assetJob||'']);
  const cache=state.galleryCache||(state.galleryCache=new Map());const cached=cache.get(key);
- const render=(items,pending=false)=>{if(epoch!==state.epoch)return;state.gallery=items;$('#main').innerHTML=notice()+`<div class="section-heading"><div class="tabs gallery-tabs">${destinations.map(d=>`<button id="${esc(d.id)}-tab" data-gallery-destination="${esc(d.id)}" class="${state.tab===d.id?'active':''}">${esc(galleryDestinationName(d))}</button>`).join('')}</div><div class="actions">${buttons('gallery-refresh','refresh')}${state.tab==='cloud'?buttons('show-name','displayByName'):''}${buttons('gallery-upload','upload',true)}<span id="gallery-list-status" class="hint" role="status" ${pending?'':'hidden'}>${pending?t('galleryListLoading'):''}</span></div></div>${state.tab==='local'?`<div class="notice">${t('uploadNotice')}</div>`:''}${`<div class="gallery" aria-busy="${pending}">${items.map((x,i)=>`<article class="card image-card"><button class="image-preview" data-original="${i}" aria-label="${t('original')} · ${esc(x.name)}"><img class="thumb" alt="${esc(x.name)}" data-src="${esc(x.url+(state.tab==='cloud'?'?thumbnail=true':''))}"></button><h3 title="${esc(x.name)}">${esc(x.name)}</h3><small>${state.tab==='cloud'?'#'+x.image_id:t('local')} · ${esc(fmt(x.created_at))}</small><div class="actions"><button class="primary" data-show="${i}" ${x.current?'disabled':''}>${t(x.current?'current':'display')}</button><button class="danger" data-delete="${i}">${t('delete')}</button></div></article>`).join('')}</div>`}${!pending&&!items.length?`<div class="card empty"><strong>${t('noImages')}</strong>${t('emptyHint')}</div>`:''}`;bind('cloud-tab',()=>{state.tab='cloud';return navigate();});bind('local-tab',()=>{state.tab='local';return navigate();});bind('gallery-refresh',()=>navigate());bind('gallery-upload',()=>navigate('upload'));bind('show-name',()=>{showModal(`<h2>${t('displayByName')}</h2><div class="field"><label for="image-name">${t('name')}</label><input id="image-name" maxlength="120"></div><div class="modal-actions">${buttons('modal-cancel','cancel')}${buttons('show-name-confirm','display',true)}</div>`);bind('show-name-confirm',async()=>{const name=$('#image-name').value;$('#modal').close();displayDialog({type:'image',image_name:name});});});enhanceGallery();guardDeviceButtons();hydrateImages();document.querySelectorAll('[data-show]').forEach(b=>b.onclick=busy(()=>{const x=items[b.dataset.show];if(x.current)return;return displayDialog(state.tab==='cloud'?{type:'image',image_id:x.image_id}:{type:'image',asset_id:x.asset_id});}));document.querySelectorAll('[data-original]').forEach(b=>b.onclick=busy(async()=>{const x=items[b.dataset.original];await openImageViewer(x.url,x.name);}));document.querySelectorAll('[data-delete]').forEach(b=>b.onclick=()=>{const x=items[b.dataset.delete];confirmDialog(state.tab==='local'?t('localDeleteConfirm'):x.current?t('deleteCurrent'):t('cloudDeleteConfirm'),async()=>{if(state.tab==='local'){await api('/api/v1/assets/'+x.asset_id,{method:'DELETE'});}else{const result=await api(`/api/v1/devices/${state.device}/images/${x.image_id}?confirm_current=${x.current}`,{method:'DELETE',headers:{'Idempotency-Key':'web-'+clientUUID()}});await waitOperation(result.operation_id);}await navigate();});});};
+ const render=(items,pending=false)=>{if(epoch!==state.epoch)return;state.gallery=items;$('#main').innerHTML=notice()+`<div class="section-heading"><div class="tabs gallery-tabs">${destinations.map(d=>`<button id="${esc(d.id)}-tab" data-gallery-destination="${esc(d.id)}" class="${state.tab===d.id?'active':''}">${esc(galleryDestinationName(d))}</button>`).join('')}</div><div class="actions">${buttons('gallery-refresh','refresh')}${state.tab==='cloud'?buttons('show-name','displayByName'):''}${buttons('gallery-upload','upload',true)}<span id="gallery-list-status" class="hint" role="status" ${pending?'':'hidden'}>${pending?t('galleryListLoading'):''}</span></div></div>${state.tab==='local'?`<div class="notice">${t('uploadNotice')}</div>`:''}${`<div class="gallery" aria-busy="${pending}">${items.map((x,i)=>`<article class="card image-card"><button class="image-preview" data-original="${i}" aria-label="${t('original')} · ${esc(x.name)}"><img class="thumb" alt="${esc(x.name)}" data-src="${esc(x.url+(state.tab==='cloud'?'?thumbnail=true':''))}"></button><h3 class="${state.tab==='local'?'source-path':''}" title="${esc(x.source_path||x.name)}">${esc(state.tab==='local'?(x.source_path||x.name):x.name)}</h3><small>${state.tab==='cloud'?'#'+x.image_id:t('local')} · ${esc(fmt(x.created_at))}</small><div class="actions"><button class="primary" data-show="${i}" ${x.current?'disabled':''}>${t(x.current?'current':'display')}</button><button class="danger" data-delete="${i}">${t('delete')}</button></div></article>`).join('')}</div>`}${!pending&&!items.length?`<div class="card empty"><strong>${t('noImages')}</strong>${t('emptyHint')}</div>`:''}`;bind('cloud-tab',()=>{state.tab='cloud';return navigate();});bind('local-tab',()=>{state.tab='local';return navigate();});bind('gallery-refresh',()=>navigate());bind('gallery-upload',()=>navigate('upload'));bind('show-name',()=>{showModal(`<h2>${t('displayByName')}</h2><div class="field"><label for="image-name">${t('name')}</label><input id="image-name" maxlength="120"></div><div class="modal-actions">${buttons('modal-cancel','cancel')}${buttons('show-name-confirm','display',true)}</div>`);bind('show-name-confirm',async()=>{const name=$('#image-name').value;$('#modal').close();displayDialog({type:'image',image_name:name});});});enhanceGallery();guardDeviceButtons();hydrateImages();document.querySelectorAll('[data-show]').forEach(b=>b.onclick=busy(()=>{const x=items[b.dataset.show];if(x.current)return;return displayDialog(state.tab==='cloud'?{type:'image',image_id:x.image_id}:{type:'image',asset_id:x.asset_id});}));document.querySelectorAll('[data-original]').forEach(b=>b.onclick=busy(async()=>{const x=items[b.dataset.original];await openImageViewer(x.url,x.name);}));document.querySelectorAll('[data-delete]').forEach(b=>b.onclick=()=>{const x=items[b.dataset.delete];confirmDialog(state.tab==='local'?t('localDeleteConfirm'):x.current?t('deleteCurrent'):t('cloudDeleteConfirm'),async()=>{if(state.tab==='local'){await api('/api/v1/assets/'+x.asset_id,{method:'DELETE'});}else{const result=await api(`/api/v1/devices/${state.device}/images/${x.image_id}?confirm_current=${x.current}`,{method:'DELETE',headers:{'Idempotency-Key':'web-'+clientUUID()}});await waitOperation(result.operation_id);}await navigate();});});};
  render(cached||[],!cached);
  try{
  const items=state.tab==='cloud'?await api('/api/v1/devices/'+state.device+'/images'):await api('/api/v1/assets?limit=200&offset='+(state.assetOffset||0)+'&origin='+encodeURIComponent(state.assetOrigin||'all')+(state.assetJob?'&job_id='+encodeURIComponent(state.assetJob):''));
diff --git a/pigway_frame_flow/web/features.js b/pigway_frame_flow/web/features.js
index 25e5e52..ce55664 100644
--- a/pigway_frame_flow/web/features.js
+++ b/pigway_frame_flow/web/features.js
@@ -150,9 +150,9 @@ async function photoSourcesPanel(){
  section.querySelectorAll('[data-source-job]').forEach(b=>b.onclick=()=>sourceJobForm(b.dataset.sourceJob));
 }
 async function photoSourceForm(source=null){
- showModal(`<h2>${t(source?'edit':'addSource')}</h2><p class="notice">${t('sourceIndependentHelp')}</p><form id="photo-source-form"><input id="source-id" type="hidden" value="${esc(source?.id||'photos-'+clientUUID())}"><div class="field"><label for="source-name">${t('name')}</label><input id="source-name" required maxlength="120" value="${esc(source?.name||'')}"></div><div class="field" ${!source||source.kind==='synology-photos'?'hidden':''}><label for="source-kind">${t('sourceKind')}</label><select id="source-kind"><option value="synology-photos">${t('synologyAPISource')}</option><option value="webdav">WebDAV</option><option value="google-drive">Google Drive</option><option value="alipan">阿里云盘 / AliPan</option><option value="baidu">百度网盘 / Baidu</option></select></div><div class="field"><label for="source-location">${t('sourceLocation')}</label><input id="source-location" required maxlength="2048" value="${esc(source?.location||'.')}"><p class="hint">${t('sourceLocationHint')}</p></div><div class="field"><label for="source-credential">${t('sourceCredential')}</label><input id="source-credential" pattern="FRAME_FLOW_SOURCE_[A-Z0-9_]+" value="${esc(source?.credential_env||'')}" placeholder="FRAME_FLOW_SOURCE_CLOUD"><p class="hint">${t('sourceCredentialHint')}</p></div><div class="field"><label for="source-orientation">${t('photoOrientation')}</label><select id="source-orientation">${source&&!source.orientation?`<option value="">${t('orientationLegacy')}</option>`:''}<option value="auto">${t('orientationAuto')}</option><option value="landscape">${t('orientationLandscape')}</option><option value="portrait">${t('orientationPortrait')}</option></select><p class="hint">${t('orientationHint')}</p></div><div class="field"><label class="check-row"><input id="source-organized" type="checkbox" ${source?.organized_only?'checked':''}>${t('organizedPhotos')}</label><label class="check-row"><input id="source-caption" type="checkbox" ${!source||source.folder_caption?'checked':''}>${t('folderCaption')}</label><label hidden><input id="source-synology-previews" type="checkbox" disabled></label><p class="hint">${t('folderCaptionHint')}</p></div><div class="field"><label class="check-row"><input id="source-people-filter" type="checkbox" ${source?.people_filter?'checked':''}>${t('peopleFilter')}</label><p class="hint">${t('peopleHint')}</p><button id="source-people-load" type="button">${t('choosePeople')}</button><div id="source-people-panel"><p class="hint">${t('peopleSelected')}${(source?.person_ids||[]).length}</p></div><label for="source-person-match">${t('personMatch')}</label><select id="source-person-match"><option value="any">${t('personAny')}</option><option value="all">${t('personAll')}</option></select></div><div class="field"><label class="check-row"><input id="source-recursive" type="checkbox" ${source?.recursive===false?'':'checked'}>${t('sourceRecursive')}</label><label class="check-row"><input id="source-enabled" type="checkbox" ${source?.enabled===false?'':'checked'}>${t('enabled')}</label></div><div class="modal-actions">${buttons('modal-cancel','cancel')}<button type="submit" class="primary">${t('save')}</button></div></form>`);
- $('#source-orientation').value=source?(source.orientation||''):'auto';const selectedPeople=new Set(source?.person_ids||[]);$('#source-person-match').value=source?.person_match||'any';$('#source-people-load').onclick=busy(async()=>{await photosPeoplePicker(selectedPeople);});$('#source-kind').value=source?.kind||'synology-photos';const update=()=>{const photosAPI=$('#source-kind').value==='synology-photos';$('#source-location').labels[0].textContent=photosAPI?tr('照片目录','Photo folder'):t('sourceLocation');$('#source-location').nextElementSibling.textContent=photosAPI?tr('填写所选空间内的目录路径，. 表示整个空间。按需获取 XL 预览图，不下载原图。','Folder path within the selected space; . means the whole space. Downloads XL previews on demand, not originals.'):t('sourceLocationHint');const dav=!['local','synology-photos'].includes($('#source-kind').value);$('#source-orientation').disabled=dav;$('#source-credential').disabled=!dav;$('#source-credential').closest('.field').hidden=$('#source-kind').value!=='webdav';const oauth=$('#source-oauth');if(oauth)oauth.closest('.field').hidden=!['google-drive','alipan','baidu'].includes($('#source-kind').value);const quality=$('#source-local-quality');if(quality)quality.hidden=dav;$('#source-recursive').disabled=$('#source-kind').value==='webdav';$('#source-synology-previews').disabled=$('#source-kind').value!=='local';$('#source-organized').disabled=dav;$('#source-caption').disabled=dav;$('#source-people-filter').disabled=dav;$('#source-people-load').disabled=dav;};addPhotoQualityFields(source);$('#source-location').closest('.field').before($('#source-people-space').closest('.field'));update();$('#source-kind').onchange=update;$('#source-people-space').onchange=()=>{selectedPeople.clear();$('#source-people-panel').innerHTML='';};
- $('#photo-source-form').onsubmit=busy(async e=>{e.preventDefault();const oauth=$('#source-oauth').value;const sourceId=$('#source-id').value;const native=['google-drive','alipan','baidu'].includes($('#source-kind').value);if(oauth&&native)JSON.parse(oauth);const dav=!['local','synology-photos'].includes($('#source-kind').value);await api('/api/v1/photo-sources/'+$('#source-id').value,{method:'PUT',body:{name:$('#source-name').value,kind:$('#source-kind').value,location:$('#source-location').value,recursive:$('#source-kind').value!=='webdav'&&$('#source-recursive').checked,synology_previews:false,catalog_limit:$('#source-organized').checked?100000:(source?.catalog_limit||10000),organized_only:!dav&&$('#source-organized').checked,folder_caption:!dav&&$('#source-caption').checked,orientation:dav?null:($('#source-orientation').value||null),people_filter:!dav&&$('#source-people-filter').checked,person_ids:[...selectedPeople],person_match:$('#source-person-match').value,people_space:$('#source-people-space').value,minimum_short_edge:Number($('#source-min-short').value),minimum_long_edge:Number($('#source-min-long').value),minimum_sharpness:Number($('#source-sharpness').value),minimum_brightness:Number($('#source-bright-min').value),maximum_brightness:Number($('#source-bright-max').value),avoid_duplicates:$('#source-dedup').checked,enabled:$('#source-enabled').checked,credential_env:dav?($('#source-credential').value||null):null}});if(oauth&&native){$('#source-oauth').value='';await api('/api/v1/photo-sources/'+sourceId+'/credentials',{method:'PUT',body:{key:oauth}});}$('#modal').close();await navigate('photo-sources');});
+ showModal(`<h2>${t(source?'edit':'addSource')}</h2><p class="notice">${t('sourceIndependentHelp')}</p><form id="photo-source-form"><input id="source-id" type="hidden" value="${esc(source?.id||'photos-'+clientUUID())}"><div class="field"><label for="source-name">${t('name')}</label><input id="source-name" required maxlength="120" value="${esc(source?.name||'')}"></div><div class="field" ${!source||source.kind==='synology-photos'?'hidden':''}><label for="source-kind">${t('sourceKind')}</label><select id="source-kind"><option value="synology-photos">${t('synologyAPISource')}</option><option value="webdav">WebDAV</option><option value="google-drive">Google Drive</option><option value="alipan">阿里云盘 / AliPan</option><option value="baidu">百度网盘 / Baidu</option></select></div><div class="field"><label for="source-location">${t('sourceLocation')}</label><input id="source-location" required maxlength="2048" value="${esc(source?.location||'.')}"><p class="hint">${t('sourceLocationHint')}</p></div><div class="field" id="source-nas-root-field"><label for="source-nas-root">${tr('NAS 原照片根目录（仅用于显示路径）','NAS original root (display only)')}</label><input id="source-nas-root" pattern="/.*" maxlength="2048" placeholder="/volume1/photo" value="${esc(source?.nas_root_path||'')}"><p class="hint">${tr('共享空间通常为 /volume1/photo，请填写实际 NAS 根目录；留空时显示 Photos 空间内路径。','Enter the actual NAS root; shared space is commonly /volume1/photo. Blank shows the path within Photos.')}</p></div><div class="field"><label for="source-credential">${t('sourceCredential')}</label><input id="source-credential" pattern="FRAME_FLOW_SOURCE_[A-Z0-9_]+" value="${esc(source?.credential_env||'')}" placeholder="FRAME_FLOW_SOURCE_CLOUD"><p class="hint">${t('sourceCredentialHint')}</p></div><div class="field"><label for="source-orientation">${t('photoOrientation')}</label><select id="source-orientation">${source&&!source.orientation?`<option value="">${t('orientationLegacy')}</option>`:''}<option value="auto">${t('orientationAuto')}</option><option value="landscape">${t('orientationLandscape')}</option><option value="portrait">${t('orientationPortrait')}</option></select><p class="hint">${t('orientationHint')}</p></div><div class="field"><label class="check-row"><input id="source-organized" type="checkbox" ${source?.organized_only?'checked':''}>${t('organizedPhotos')}</label><label class="check-row"><input id="source-caption" type="checkbox" ${!source||source.folder_caption?'checked':''}>${t('folderCaption')}</label><label hidden><input id="source-synology-previews" type="checkbox" disabled></label><p class="hint">${t('folderCaptionHint')}</p></div><div class="field"><label class="check-row"><input id="source-people-filter" type="checkbox" ${source?.people_filter?'checked':''}>${t('peopleFilter')}</label><p class="hint">${t('peopleHint')}</p><button id="source-people-load" type="button">${t('choosePeople')}</button><div id="source-people-panel"><p class="hint">${t('peopleSelected')}${(source?.person_ids||[]).length}</p></div><label for="source-person-match">${t('personMatch')}</label><select id="source-person-match"><option value="any">${t('personAny')}</option><option value="all">${t('personAll')}</option></select></div><div class="field"><label class="check-row"><input id="source-recursive" type="checkbox" ${source?.recursive===false?'':'checked'}>${t('sourceRecursive')}</label><label class="check-row"><input id="source-enabled" type="checkbox" ${source?.enabled===false?'':'checked'}>${t('enabled')}</label></div><div class="modal-actions">${buttons('modal-cancel','cancel')}<button type="submit" class="primary">${t('save')}</button></div></form>`);
+ $('#source-orientation').value=source?(source.orientation||''):'auto';const selectedPeople=new Set(source?.person_ids||[]);$('#source-person-match').value=source?.person_match||'any';$('#source-people-load').onclick=busy(async()=>{await photosPeoplePicker(selectedPeople);});$('#source-kind').value=source?.kind||'synology-photos';const update=()=>{const photosAPI=$('#source-kind').value==='synology-photos';$('#source-nas-root-field').hidden=!photosAPI;$('#source-location').labels[0].textContent=photosAPI?tr('照片目录','Photo folder'):t('sourceLocation');$('#source-location').nextElementSibling.textContent=photosAPI?tr('填写所选空间内的目录路径，. 表示整个空间。按需获取 XL 预览图，不下载原图。','Folder path within the selected space; . means the whole space. Downloads XL previews on demand, not originals.'):t('sourceLocationHint');const dav=!['local','synology-photos'].includes($('#source-kind').value);$('#source-orientation').disabled=dav;$('#source-credential').disabled=!dav;$('#source-credential').closest('.field').hidden=$('#source-kind').value!=='webdav';const oauth=$('#source-oauth');if(oauth)oauth.closest('.field').hidden=!['google-drive','alipan','baidu'].includes($('#source-kind').value);const quality=$('#source-local-quality');if(quality)quality.hidden=dav;$('#source-recursive').disabled=$('#source-kind').value==='webdav';$('#source-synology-previews').disabled=$('#source-kind').value!=='local';$('#source-organized').disabled=dav;$('#source-caption').disabled=dav;$('#source-people-filter').disabled=dav;$('#source-people-load').disabled=dav;};addPhotoQualityFields(source);$('#source-location').closest('.field').before($('#source-people-space').closest('.field'));update();$('#source-kind').onchange=update;$('#source-people-space').onchange=()=>{selectedPeople.clear();$('#source-people-panel').innerHTML='';};
+ $('#photo-source-form').onsubmit=busy(async e=>{e.preventDefault();const oauth=$('#source-oauth').value;const sourceId=$('#source-id').value;const native=['google-drive','alipan','baidu'].includes($('#source-kind').value);if(oauth&&native)JSON.parse(oauth);const dav=!['local','synology-photos'].includes($('#source-kind').value);await api('/api/v1/photo-sources/'+$('#source-id').value,{method:'PUT',body:{name:$('#source-name').value,kind:$('#source-kind').value,location:$('#source-location').value,nas_root_path:$('#source-nas-root').value||null,recursive:$('#source-kind').value!=='webdav'&&$('#source-recursive').checked,synology_previews:false,catalog_limit:$('#source-organized').checked?100000:(source?.catalog_limit||10000),organized_only:!dav&&$('#source-organized').checked,folder_caption:!dav&&$('#source-caption').checked,orientation:dav?null:($('#source-orientation').value||null),people_filter:!dav&&$('#source-people-filter').checked,person_ids:[...selectedPeople],person_match:$('#source-person-match').value,people_space:$('#source-people-space').value,minimum_short_edge:Number($('#source-min-short').value),minimum_long_edge:Number($('#source-min-long').value),minimum_sharpness:Number($('#source-sharpness').value),minimum_brightness:Number($('#source-bright-min').value),maximum_brightness:Number($('#source-bright-max').value),avoid_duplicates:$('#source-dedup').checked,enabled:$('#source-enabled').checked,credential_env:dav?($('#source-credential').value||null):null}});if(oauth&&native){$('#source-oauth').value='';await api('/api/v1/photo-sources/'+sourceId+'/credentials',{method:'PUT',body:{key:oauth}});}$('#modal').close();await navigate('photo-sources');});
 }
 async function browseSource(id,offset=0,refresh=false){
  const result=await api('/api/v1/photo-sources/'+id+'/images?device_id='+encodeURIComponent(state.device)+'&offset='+offset+'&limit=50&refresh='+refresh);const box=$('#source-browser');if(!box)return;
diff --git a/pigway_frame_flow/web/style.css b/pigway_frame_flow/web/style.css
index a7ebcf2..81f6762 100644
--- a/pigway_frame_flow/web/style.css
+++ b/pigway_frame_flow/web/style.css
@@ -225,3 +225,5 @@ form#mqtt-config{grid-template-columns:minmax(160px,1fr) 110px minmax(180px,1.5f
 .automation-table td:is(:nth-child(2),:nth-child(5),:nth-child(6)){white-space:nowrap}
 .automation-table .row-actions{flex-wrap:nowrap}
 .history-table td:is(:nth-child(3),:nth-child(4),:nth-child(5)),.history-table .history-actions{vertical-align:middle}
+
+.image-card h3.source-path{white-space:normal;overflow-wrap:anywhere}
diff --git a/tests/schema-contract.json b/tests/schema-contract.json
index 7020848..92e216b 100644
--- a/tests/schema-contract.json
+++ b/tests/schema-contract.json
@@ -883,6 +883,19 @@
         "minLength": 1,
         "title": "Location"
       },
+      "nas_root_path": {
+        "anyOf": [
+          {
+            "type": "string",
+            "maxLength": 2048,
+            "pattern": "^/"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "title": "Nas Root Path"
+      },
       "recursive": {
         "type": "boolean",
         "title": "Recursive",
@@ -1050,6 +1063,19 @@
         "minLength": 1,
         "title": "Location"
       },
+      "nas_root_path": {
+        "anyOf": [
+          {
+            "type": "string",
+            "maxLength": 2048,
+            "pattern": "^/"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "title": "Nas Root Path"
+      },
       "recursive": {
         "type": "boolean",
         "title": "Recursive",
@@ -1220,6 +1246,17 @@
         ],
         "title": "Caption"
       },
+      "source_path": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ],
+        "title": "Source Path"
+      },
       "provider_preview": {
         "type": "boolean",
         "title": "Provider Preview",
diff --git a/tests/test_photo_paths.py b/tests/test_photo_paths.py
new file mode 100644
index 0000000..956a901
--- /dev/null
+++ b/tests/test_photo_paths.py
@@ -0,0 +1,59 @@
+import io
+
+from PIL import Image
+
+from pigway_frame_flow.models import PhotoSourceContent
+from pigway_frame_flow.providers.photo_sources import PhotoSourceInput
+
+
+def test_photo_path_survives_render_and_asset_listing(client, service, monkeypatch):
+    photos = service.photo_sources
+    photos.save(
+        "family",
+        PhotoSourceInput(
+            name="Family",
+            kind="synology-photos",
+            location=".",
+            nas_root_path="/volume1/photo",
+        ),
+    )
+    monkeypatch.setattr(photos.synology, "sid", lambda: "fixture")
+    monkeypatch.setattr(
+        photos.synology,
+        "items",
+        lambda *a, **kw: [
+            {
+                "id": 42,
+                "filename": "original.PNG",
+                "additional": {
+                    "folder": "/家庭/20190130",
+                    "resolution": {"width": 1600, "height": 1200},
+                },
+            }
+        ],
+    )
+    out = io.BytesIO()
+    Image.new("RGB", (1600, 1200)).save(out, "PNG")
+    monkeypatch.setattr(photos.synology, "download", lambda *a, **kw: out.getvalue())
+    assert (
+        photos.catalog("family")[0]["source_path"]
+        == "/volume1/photo/家庭/20190130/original.PNG"
+    )
+    asset = service.content_asset(
+        PhotoSourceContent(type="photo_source", source_id="family", item_id="42")
+    )
+    assert asset["source_path"] == "/volume1/photo/家庭/20190130/original.PNG"
+    assert client.get("/api/v1/assets").json()[0]["source_path"] == asset["source_path"]
+    assert (
+        client.get("/api/v1/assets/" + asset["asset_id"] + "/source").json()["source"][
+            "item_id"
+        ]
+        == "42"
+    )
+
+
+def test_missing_photo_path_is_not_invented(service):
+    out = io.BytesIO()
+    Image.new("RGB", (20, 20)).save(out, "JPEG")
+    asset = service.assets.put(out.getvalue(), "manual.jpg")
+    assert asset["source_path"] is None