diff --git a/apps/admin/src/api/albums.ts b/apps/admin/src/api/albums.ts
index 127e06d..e4b83f8 100644
--- a/apps/admin/src/api/albums.ts
+++ b/apps/admin/src/api/albums.ts
@@ -30,6 +30,11 @@ export function fetchUpdateAlbum(albumId: string, data: Api.Album.UpdatePayload)
   return request.patch<Api.Album.Detail>({ url: `/v1/albums/${albumId}`, data })
 }
 
+/** 软删除相册（status=deleted：列表/公开端即刻不可见；数据保留，无恢复端点；幂等 204） */
+export function fetchDeleteAlbum(albumId: string) {
+  return request.del<void>({ url: `/v1/albums/${albumId}` })
+}
+
 /** 初始化资产上传（banner/cover/logo；返回 staging 直传凭证） */
 export function fetchInitAlbumAsset(albumId: string, data: Api.Album.AssetInitPayload) {
   return request.post<Api.Album.AssetInitResponse>({
diff --git a/apps/admin/src/locales/langs/en.json b/apps/admin/src/locales/langs/en.json
index e96a242..a384c07 100644
--- a/apps/admin/src/locales/langs/en.json
+++ b/apps/admin/src/locales/langs/en.json
@@ -316,7 +316,10 @@
       "viewTable": "Table view",
       "loadedCount": "{n} albums loaded",
       "cursorNote": "Sorted by creation time · cursor-based loading",
-      "emptyFiltered": "No albums match these filters"
+      "emptyFiltered": "No albums match these filters",
+      "actionDelete": "Delete",
+      "deleteConfirm": "Delete album \"{title}\"? It becomes invisible immediately and cannot be restored (data retained; ops-only recovery).",
+      "deleted": "Album deleted"
     },
     "form": {
       "createTitle": "New Album",
@@ -385,7 +388,8 @@
       "fieldOwnerId": "Owner",
       "subtitle": "Album workspace · Manage the moments that matter",
       "share": "Share album",
-      "tabAssets": "Branding assets"
+      "tabAssets": "Branding assets",
+      "delete": "Delete album"
     },
     "banner": {
       "kind": "Asset Kind",
diff --git a/apps/admin/src/locales/langs/zh.json b/apps/admin/src/locales/langs/zh.json
index a9a6779..743cc2f 100644
--- a/apps/admin/src/locales/langs/zh.json
+++ b/apps/admin/src/locales/langs/zh.json
@@ -316,7 +316,10 @@
       "viewTable": "表格视图",
       "loadedCount": "已加载 {n} 个相册",
       "cursorNote": "按创建时间排序 · 游标加载",
-      "emptyFiltered": "没有符合筛选条件的相册"
+      "emptyFiltered": "没有符合筛选条件的相册",
+      "actionDelete": "删除",
+      "deleteConfirm": "确定删除相册「{title}」？删除后立即不可见且不可恢复（数据保留，仅运维可恢复）。",
+      "deleted": "相册已删除"
     },
     "form": {
       "createTitle": "新建相册",
@@ -385,7 +388,8 @@
       "fieldOwnerId": "负责人",
       "subtitle": "相册工作区 · 管理活动中的精彩瞬间",
       "share": "分享相册",
-      "tabAssets": "品牌资产"
+      "tabAssets": "品牌资产",
+      "delete": "删除相册"
     },
     "banner": {
       "kind": "资产类型",
diff --git a/apps/admin/src/views/albums/detail/index.vue b/apps/admin/src/views/albums/detail/index.vue
index 7581c76..abc3660 100644
--- a/apps/admin/src/views/albums/detail/index.vue
+++ b/apps/admin/src/views/albums/detail/index.vue
@@ -39,6 +39,9 @@
             >
               {{ $t('albumsManage.detail.edit') }}
             </ElButton>
+            <ElButton type="danger" plain data-test="album-detail-delete" @click="removeAlbum">
+              {{ $t('albumsManage.detail.delete') }}
+            </ElButton>
           </div>
         </div>
 
@@ -104,6 +107,7 @@
 <script setup lang="ts">
   import { computed, onMounted, ref, watch } from 'vue'
   import { useRoute, useRouter } from 'vue-router'
+  import { useI18n } from 'vue-i18n'
   import { ArrowLeft } from '@element-plus/icons-vue'
   import AlbumSummaryHeader from '@/components/business/albums/AlbumSummaryHeader.vue'
   import AlbumBannerUpload from './AlbumBannerUpload.vue'
@@ -113,12 +117,14 @@
   import AlbumWatermark from './AlbumWatermark.vue'
   import AlbumShareCard from './AlbumShareCard.vue'
   import AlbumTransferDialog from './AlbumTransferDialog.vue'
-  import { fetchAlbum } from '@/api/albums'
+  import { ElMessage, ElMessageBox } from 'element-plus'
+  import { fetchAlbum, fetchDeleteAlbum } from '@/api/albums'
 
   defineOptions({ name: 'AlbumsDetail' })
 
   const route = useRoute()
   const router = useRouter()
+  const { t } = useI18n()
 
   const albumId = computed(() => String(route.params.albumId ?? ''))
 
@@ -152,6 +158,26 @@
     return preferred?.title ?? target.translations[0]?.title ?? target.id
   }
 
+  /** 软删除相册（admin/owner）：确认 → DELETE → 回列表 */
+  async function removeAlbum() {
+    try {
+      await ElMessageBox.confirm(
+        t('albumsManage.list.deleteConfirm', { title: titleOf(album.value) }),
+        t('common.tips'),
+        {
+          type: 'warning',
+          confirmButtonText: t('common.confirm'),
+          cancelButtonText: t('common.cancel')
+        }
+      )
+    } catch {
+      return // 用户取消
+    }
+    await fetchDeleteAlbum(albumId.value)
+    ElMessage.success(t('albumsManage.list.deleted'))
+    void router.replace({ name: 'AlbumsManage' })
+  }
+
   /** 列表「成员」入口带 #members 锚点：直达成员页签 */
   watch(
     () => route.hash,
diff --git a/apps/admin/src/views/albums/manage/index.vue b/apps/admin/src/views/albums/manage/index.vue
index b76ecf1..a597d34 100644
--- a/apps/admin/src/views/albums/manage/index.vue
+++ b/apps/admin/src/views/albums/manage/index.vue
@@ -155,6 +155,9 @@
             <ElButton link type="primary" data-test="album-detail-btn" @click="gotoDetail(row)">
               {{ $t('albumsManage.list.actionDetail') }}
             </ElButton>
+            <ElButton link type="danger" data-test="album-delete-btn" @click="remove(row)">
+              {{ $t('albumsManage.list.actionDelete') }}
+            </ElButton>
           </template>
         </ElTableColumn>
 
@@ -179,7 +182,8 @@
   import { useI18n } from 'vue-i18n'
   import { Search, Menu, Grid } from '@element-plus/icons-vue'
   import AlbumCoverCard from '@/components/business/albums/AlbumCoverCard.vue'
-  import { fetchAlbumList } from '@/api/albums'
+  import { ElMessage, ElMessageBox } from 'element-plus'
+  import { fetchAlbumList, fetchDeleteAlbum } from '@/api/albums'
   import { useCursorList } from '@/views/albums/composables/useCursorList'
   import { formatDateTime } from '@/utils/albums/format'
 
@@ -258,6 +262,26 @@
     router.push({ name: 'AlbumsDetail', params: { albumId: album.id }, hash: '#members' })
   }
 
+  /** 软删除：确认（不可恢复说明）→ DELETE → 重载列表 */
+  async function remove(album: Api.Album.Summary) {
+    try {
+      await ElMessageBox.confirm(
+        t('albumsManage.list.deleteConfirm', { title: titleOf(album) }),
+        t('common.tips'),
+        {
+          type: 'warning',
+          confirmButtonText: t('common.confirm'),
+          cancelButtonText: t('common.cancel')
+        }
+      )
+    } catch {
+      return // 用户取消
+    }
+    await fetchDeleteAlbum(album.id)
+    ElMessage.success(t('albumsManage.list.deleted'))
+    loadFirst()
+  }
+
   onMounted(() => {
     loadFirst()
   })
diff --git a/apps/mobile/lib/core/api_client.dart b/apps/mobile/lib/core/api_client.dart
index cec09b0..c1c119a 100644
--- a/apps/mobile/lib/core/api_client.dart
+++ b/apps/mobile/lib/core/api_client.dart
@@ -33,7 +33,8 @@ class ApiClient {
     String baseUrl = ApiConfig.baseUrl,
     Dio? dio,
   }) : _session = sessionStore {
-    _dio = dio ??
+    _dio =
+        dio ??
         Dio(
           BaseOptions(
             baseUrl: baseUrl,
@@ -68,8 +69,7 @@ class ApiClient {
   void close({bool force = false}) => _dio.close(force: force);
 
   /// 登录端点：不附加令牌（未认证端点）。
-  static bool _isLoginPath(String path) =>
-      path.endsWith('/v1/auth/password');
+  static bool _isLoginPath(String path) => path.endsWith('/v1/auth/password');
 
   /// 401 驱逐豁免：登录（凭据错误）与修改密码（旧密码错误）的 401 都不是
   /// 会话过期语义，不得清会话/触发跳登录；其余端点 401 一律驱逐。
@@ -175,10 +175,7 @@ class ApiClient {
           message: '网络超时',
         );
       case DioExceptionType.cancel:
-        return const AppException(
-          code: ErrorCodes.cancelled,
-          message: '请求已取消',
-        );
+        return const AppException(code: ErrorCodes.cancelled, message: '请求已取消');
       case DioExceptionType.connectionError:
         return const AppException(
           code: ErrorCodes.networkError,
@@ -270,44 +267,53 @@ class ApiClient {
   /// 服务端成功后撤销其他会话、**保留当前会话**——本地令牌继续有效，
   /// 无需重登录。旧密码错误 → 401 AUTH_INVALID_CREDENTIALS（不驱逐会话，
   /// 见 [_evictsSessionOn401]）。
-  Future<void> changePassword(String oldPassword, String newPassword) =>
-      _send(
-        () => _dio.post<void>(
-          '/v1/auth/password-change',
-          data: {'oldPassword': oldPassword, 'newPassword': newPassword},
-        ),
-      );
+  Future<void> changePassword(String oldPassword, String newPassword) => _send(
+    () => _dio.post<void>(
+      '/v1/auth/password-change',
+      data: {'oldPassword': oldPassword, 'newPassword': newPassword},
+    ),
+  );
 
   // ── albums / members / categories / admin ──
 
   /// operationId `listAlbums`（GET /albums，游标分页）。
   Future<CursorPage<AlbumSummary>> listAlbums({String? cursor, int? limit}) =>
-      _getPage('/v1/albums', AlbumSummary.fromJson, cursor: cursor, limit: limit);
+      _getPage(
+        '/v1/albums',
+        AlbumSummary.fromJson,
+        cursor: cursor,
+        limit: limit,
+      );
 
   /// 资产上传凭证（契约 AssetInitResponse）。
   /// kind：cover | banner | logo；凭据结构与照片 presign 相同。
   static const assetKindCover = 'cover';
   static const assetKindBanner = 'banner';
 
-  Future<({String assetId, UploadCredential credential})>
-      initAlbumAsset(String albumId, {
+  Future<({String assetId, UploadCredential credential})> initAlbumAsset(
+    String albumId, {
     required String kind,
     required String filename,
     required int bytes,
     required String contentType,
   }) async {
     final resp = await _send(
-      () => _dio.post<Map<String, dynamic>>('/v1/albums/$albumId/assets', data: {
-        'kind': kind,
-        'filename': filename,
-        'bytes': bytes,
-        'contentType': contentType,
-      }),
+      () => _dio.post<Map<String, dynamic>>(
+        '/v1/albums/$albumId/assets',
+        data: {
+          'kind': kind,
+          'filename': filename,
+          'bytes': bytes,
+          'contentType': contentType,
+        },
+      ),
     );
     final data = resp.data!;
     return (
       assetId: data['assetId'] as String,
-      credential: UploadCredential.fromJson(data['credential'] as Map<String, dynamic>),
+      credential: UploadCredential.fromJson(
+        data['credential'] as Map<String, dynamic>,
+      ),
     );
   }
 
@@ -324,23 +330,27 @@ class ApiClient {
   /// 一步上传相册封面：选图 → presign → PUT → complete。
   /// [filePath] 是本机源文件路径（由 singleImagePicker 返回）。
   /// 返回封面短期 URL（仅用于即时预览；列表走 AlbumSummary.cover）。
-  Future<String> uploadAlbumCoverFromFile(String albumId, String filePath) async {
+  Future<String> uploadAlbumCoverFromFile(
+    String albumId,
+    String filePath,
+  ) async {
     final file = File(filePath);
     final bytes = await file.length();
     final filename = filePath.split(Platform.pathSeparator).last;
     final contentType = _guessContentType(filename);
-    final init = await initAlbumAsset(albumId,
-        kind: assetKindCover,
-        filename: filename,
-        bytes: bytes,
-        contentType: contentType);
+    final init = await initAlbumAsset(
+      albumId,
+      kind: assetKindCover,
+      filename: filename,
+      bytes: bytes,
+      contentType: contentType,
+    );
     final putRes = await Dio().put(
       init.credential.url,
       data: file.openRead(),
-      options: Options(headers: {
-        ...init.credential.headers,
-        'Content-Length': bytes,
-      }),
+      options: Options(
+        headers: {...init.credential.headers, 'Content-Length': bytes},
+      ),
     );
     if (putRes.statusCode != 200 && putRes.statusCode != 204) {
       throw Exception('cover PUT failed: ${putRes.statusCode}');
@@ -385,6 +395,13 @@ class ApiClient {
     return Album.fromJson(resp.data!);
   }
 
+  /// operationId `deleteAlbum`（DELETE /albums/{albumId} → 204 软删除）。
+  ///
+  /// status=deleted：列表/公开端即刻不可见；数据保留，无恢复端点。
+  Future<void> deleteAlbum(String albumId) async {
+    await _send(() => _dio.delete<dynamic>('/v1/albums/$albumId'));
+  }
+
   /// operationId `addAlbumMember`（POST /albums/{albumId}/members → 201）。
   ///
   /// role 省略：契约缺省 collaborator（P1a 唯一可添加角色）。
@@ -403,13 +420,12 @@ class ApiClient {
     String albumId, {
     String? cursor,
     int? limit,
-  }) =>
-      _getPage(
-        '/v1/albums/$albumId/members',
-        Member.fromJson,
-        cursor: cursor,
-        limit: limit,
-      );
+  }) => _getPage(
+    '/v1/albums/$albumId/members',
+    Member.fromJson,
+    cursor: cursor,
+    limit: limit,
+  );
 
   /// operationId `removeAlbumMember`
   /// （DELETE /albums/{albumId}/members/{userId} → 204，目标不存在幂等）。
@@ -425,18 +441,14 @@ class ApiClient {
     final resp = await _send(
       () => _dio.get<Map<String, dynamic>>(
         '/v1/admin/users',
-        queryParameters: {
-          'accountPrefix': accountPrefix,
-          'limit': ?limit,
-        },
+        queryParameters: {'accountPrefix': accountPrefix, 'limit': ?limit},
       ),
     );
     final items = resp.data!['items'] as List<dynamic>;
     return items
         .map(
-          (dynamic e) => AdminUserLookupItem.fromJson(
-            e as Map<String, dynamic>,
-          ),
+          (dynamic e) =>
+              AdminUserLookupItem.fromJson(e as Map<String, dynamic>),
         )
         .toList();
   }
@@ -506,13 +518,12 @@ class ApiClient {
   Future<CursorPage<UploadSessionRecord>> listUploads({
     String? cursor,
     int? limit,
-  }) =>
-      _getPage(
-        '/v1/uploads',
-        UploadSessionRecord.fromJson,
-        cursor: cursor,
-        limit: limit,
-      );
+  }) => _getPage(
+    '/v1/uploads',
+    UploadSessionRecord.fromJson,
+    cursor: cursor,
+    limit: limit,
+  );
 
   // ── photos（契约 tag: photos）──
 
@@ -529,18 +540,17 @@ class ApiClient {
     AlbumPhotoScope? scope,
     String? cursor,
     int? limit,
-  }) =>
-      _getPage(
-        '/v1/albums/$albumId/photos',
-        AdminPhoto.fromJson,
-        cursor: cursor,
-        limit: limit,
-        extraQuery: {
-          if (visibility != null) 'visibility': visibility.wire,
-          'categoryId': ?categoryId,
-          if (scope != null) 'scope': scope.wire,
-        },
-      );
+  }) => _getPage(
+    '/v1/albums/$albumId/photos',
+    AdminPhoto.fromJson,
+    cursor: cursor,
+    limit: limit,
+    extraQuery: {
+      if (visibility != null) 'visibility': visibility.wire,
+      'categoryId': ?categoryId,
+      if (scope != null) 'scope': scope.wire,
+    },
+  );
 
   /// operationId `updatePhoto`（PATCH /photos/{photoId}）：仅允许
   /// hidden ↔ published 切换，非法取值本地即抛 ArgumentError。
@@ -582,11 +592,7 @@ class ApiClient {
     final resp = await _send(
       () => _dio.get<Map<String, dynamic>>(
         path,
-        queryParameters: {
-          'cursor': ?cursor,
-          'limit': ?limit,
-          ...?extraQuery,
-        },
+        queryParameters: {'cursor': ?cursor, 'limit': ?limit, ...?extraQuery},
       ),
     );
     return CursorPage.parse(resp.data!, fromJson);
@@ -594,8 +600,9 @@ class ApiClient {
 }
 
 /// 会话存储 Provider（生产实现：flutter_secure_storage）。
-final sessionStoreProvider =
-    Provider<SessionStore>((ref) => SecureSessionStore());
+final sessionStoreProvider = Provider<SessionStore>(
+  (ref) => SecureSessionStore(),
+);
 
 /// API 客户端 Provider。App 壳启动时注册 [ApiClient.onUnauthorized]
 /// 跳转 /login（命名路由，见 lib/app/app.dart）。
diff --git a/apps/mobile/lib/l10n/app_en.arb b/apps/mobile/lib/l10n/app_en.arb
index c28db80..5905e57 100644
--- a/apps/mobile/lib/l10n/app_en.arb
+++ b/apps/mobile/lib/l10n/app_en.arb
@@ -32,7 +32,13 @@
   "navUploads": "Uploads",
   "navSettings": "Settings",
   "badgeUploading": "{count} tasks",
-  "@badgeUploading": { "placeholders": { "count": { "type": "int" } } },
+  "@badgeUploading": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "albumUploadsOn": "Uploads on",
   "albumUploadsOff": "Uploads off",
   "albumPublicOff": "Not public",
@@ -116,7 +122,13 @@
   "actionEdit": "Edit",
   "membersTitle": "Members",
   "membersTitleCount": "Members ({count})",
-  "@membersTitleCount": { "placeholders": { "count": { "type": "int" } } },
+  "@membersTitleCount": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "ownerGroup": "Owner",
   "collaboratorsGroup": "Collaborators",
   "noCollaborators": "No collaborators yet",
@@ -127,7 +139,13 @@
   "newCategory": "New category",
   "editCategory": "Edit category",
   "deleteCategoryConfirm": "Delete \"{name}\"? Its photos will become uncategorized.",
-  "@deleteCategoryConfirm": { "placeholders": { "name": { "type": "String" } } },
+  "@deleteCategoryConfirm": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "noCategories": "No categories yet",
   "albumCategories": "Categories",
   "shareQrTitle": "Share QR code",
@@ -143,7 +161,13 @@
   "memberInvited": "Invited",
   "removeMember": "Remove member",
   "removeMemberConfirm": "Remove {name} from this album?",
-  "@removeMemberConfirm": { "placeholders": { "name": { "type": "String" } } },
+  "@removeMemberConfirm": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "roleOwner": "Owner",
   "roleCollaborator": "Collaborator",
   "selfMarker": " (you)",
@@ -183,7 +207,13 @@
   "queueSummaryWaiting": "waiting",
   "queueSummaryNeedAttention": "need attention",
   "queueRowUploadingPercent": "Uploading {percent}%",
-  "@queueRowUploadingPercent": { "placeholders": { "percent": { "type": "int" } } },
+  "@queueRowUploadingPercent": {
+    "placeholders": {
+      "percent": {
+        "type": "int"
+      }
+    }
+  },
   "queueRowConfirming": "Confirming upload",
   "queueRowWaitingUpload": "Waiting to upload",
   "queueRowPreparing": "Preparing photo",
@@ -202,9 +232,21 @@
   "queueEmpty": "No upload tasks",
   "queueRetryAllFailed": "Retry all failed",
   "queueAttemptCount": "{count} attempt(s)",
-  "@queueAttemptCount": { "placeholders": { "count": { "type": "int" } } },
+  "@queueAttemptCount": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureQueued": "{count} queued",
-  "@captureQueued": { "placeholders": { "count": { "type": "int" } } },
+  "@captureQueued": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureFlipCamera": "Switch camera",
   "captureFlash": "Flash",
   "uploadsHistory": "History",
@@ -255,17 +297,41 @@
   "captureCategoryDefault": "Default category",
   "captureSwitchHint": "Switching only affects photos captured afterwards",
   "capturePendingBadge": "Pending {count}",
-  "@capturePendingBadge": { "placeholders": { "count": { "type": "int" } } },
+  "@capturePendingBadge": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureFailedBadge": "Failed {count}",
-  "@captureFailedBadge": { "placeholders": { "count": { "type": "int" } } },
+  "@captureFailedBadge": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "capturePickFromGallery": "Pick from gallery",
   "captureShutter": "Capture",
   "captureQueuedBadge": "Queued {count}",
-  "@captureQueuedBadge": { "placeholders": { "count": { "type": "int" } } },
+  "@captureQueuedBadge": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureEnqueuedFeedback": "Added to queue",
   "captureExitTitle": "Leave shooting?",
   "captureExitBody": "{count} photo(s) are still uploading. Tasks will continue in the background after you leave.",
-  "@captureExitBody": { "placeholders": { "count": { "type": "int" } } },
+  "@captureExitBody": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureKeepShooting": "Keep shooting",
   "captureExitConfirm": "Leave",
   "cameraPermissionDenied": "Camera unavailable. Allow camera access in system settings",
@@ -274,7 +340,13 @@
   "uploadActionPick": "Pick from gallery",
   "uploadAction": "Upload",
   "uploadEnqueuedCount": "Added {count} photo(s) to the upload queue",
-  "@uploadEnqueuedCount": { "placeholders": { "count": { "type": "int" } } },
+  "@uploadEnqueuedCount": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "uploadPickNone": "No photos selected",
   "albumManagePhotos": "Manage photos",
   "albumTakeFirstPhoto": "Take the first photo",
@@ -309,16 +381,41 @@
   "readonlyMember": "You can browse photos shared by others",
   "moreActions": "More actions",
   "photosTitle": "{count} photos",
-  "@photosTitle": { "placeholders": { "count": { "type": "int" } } },
+  "@photosTitle": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "photoUploadedBy": "Uploaded by {name}",
-  "@photoUploadedBy": { "placeholders": { "name": { "type": "String" } } },
+  "@photoUploadedBy": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "photoDimensions": "{width}×{height}",
-  "@photoDimensions": { "placeholders": { "width": { "type": "int" }, "height": { "type": "int" } } },
+  "@photoDimensions": {
+    "placeholders": {
+      "width": {
+        "type": "int"
+      },
+      "height": {
+        "type": "int"
+      }
+    }
+  },
   "photoStatus": "Status",
   "photoHideAction": "Hide photo",
   "photoPublishAction": "Publish again",
   "shareScanHint": "Scan to view photos",
   "shareNotPublic": "This link is not publicly accessible yet",
   "hidePhotoTitle": "Hide this photo?",
-  "hidePhotoBody": "Viewers will no longer see this photo. Authorized album managers can publish it again."
+  "hidePhotoBody": "Viewers will no longer see this photo. Authorized album managers can publish it again.",
+  "deleteAlbum": "Delete album",
+  "deleteAlbumConfirmTitle": "Delete this album?",
+  "deleteAlbumConfirmBody": "The album becomes invisible immediately and cannot be restored. Data is retained; recovery requires operations.",
+  "albumDeleted": "Album deleted"
 }
diff --git a/apps/mobile/lib/l10n/app_localizations.dart b/apps/mobile/lib/l10n/app_localizations.dart
index b69d6a0..e587c5f 100644
--- a/apps/mobile/lib/l10n/app_localizations.dart
+++ b/apps/mobile/lib/l10n/app_localizations.dart
@@ -1933,6 +1933,30 @@ abstract class AppLocalizations {
   /// In zh, this message translates to:
   /// **'观众将不再看到这张照片。相册管理者可重新发布。'**
   String get hidePhotoBody;
+
+  /// No description provided for @deleteAlbum.
+  ///
+  /// In zh, this message translates to:
+  /// **'删除相册'**
+  String get deleteAlbum;
+
+  /// No description provided for @deleteAlbumConfirmTitle.
+  ///
+  /// In zh, this message translates to:
+  /// **'删除这个相册？'**
+  String get deleteAlbumConfirmTitle;
+
+  /// No description provided for @deleteAlbumConfirmBody.
+  ///
+  /// In zh, this message translates to:
+  /// **'删除后立即不可见且不可恢复。数据保留，恢复需运维处理。'**
+  String get deleteAlbumConfirmBody;
+
+  /// No description provided for @albumDeleted.
+  ///
+  /// In zh, this message translates to:
+  /// **'相册已删除'**
+  String get albumDeleted;
 }
 
 class _AppLocalizationsDelegate
diff --git a/apps/mobile/lib/l10n/app_localizations_en.dart b/apps/mobile/lib/l10n/app_localizations_en.dart
index 8a1c636..8d6bb9b 100644
--- a/apps/mobile/lib/l10n/app_localizations_en.dart
+++ b/apps/mobile/lib/l10n/app_localizations_en.dart
@@ -987,4 +987,17 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get hidePhotoBody =>
       'Viewers will no longer see this photo. Authorized album managers can publish it again.';
+
+  @override
+  String get deleteAlbum => 'Delete album';
+
+  @override
+  String get deleteAlbumConfirmTitle => 'Delete this album?';
+
+  @override
+  String get deleteAlbumConfirmBody =>
+      'The album becomes invisible immediately and cannot be restored. Data is retained; recovery requires operations.';
+
+  @override
+  String get albumDeleted => 'Album deleted';
 }
diff --git a/apps/mobile/lib/l10n/app_localizations_zh.dart b/apps/mobile/lib/l10n/app_localizations_zh.dart
index 67b656a..258d252 100644
--- a/apps/mobile/lib/l10n/app_localizations_zh.dart
+++ b/apps/mobile/lib/l10n/app_localizations_zh.dart
@@ -956,4 +956,16 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get hidePhotoBody => '观众将不再看到这张照片。相册管理者可重新发布。';
+
+  @override
+  String get deleteAlbum => '删除相册';
+
+  @override
+  String get deleteAlbumConfirmTitle => '删除这个相册？';
+
+  @override
+  String get deleteAlbumConfirmBody => '删除后立即不可见且不可恢复。数据保留，恢复需运维处理。';
+
+  @override
+  String get albumDeleted => '相册已删除';
 }
diff --git a/apps/mobile/lib/l10n/app_zh.arb b/apps/mobile/lib/l10n/app_zh.arb
index f567077..6720737 100644
--- a/apps/mobile/lib/l10n/app_zh.arb
+++ b/apps/mobile/lib/l10n/app_zh.arb
@@ -32,7 +32,13 @@
   "navUploads": "上传",
   "navSettings": "设置",
   "badgeUploading": "{count} 个任务",
-  "@badgeUploading": { "placeholders": { "count": { "type": "int" } } },
+  "@badgeUploading": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "albumUploadsOn": "开放上传",
   "albumUploadsOff": "上传已关闭",
   "albumPublicOff": "未公开",
@@ -116,7 +122,13 @@
   "actionEdit": "编辑",
   "membersTitle": "成员",
   "membersTitleCount": "成员（{count}）",
-  "@membersTitleCount": { "placeholders": { "count": { "type": "int" } } },
+  "@membersTitleCount": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "ownerGroup": "创建者",
   "collaboratorsGroup": "协作者",
   "noCollaborators": "还没有协作者",
@@ -127,7 +139,13 @@
   "newCategory": "新增分类",
   "editCategory": "编辑分类",
   "deleteCategoryConfirm": "删除「{name}」？该分类下的照片将变为未分类。",
-  "@deleteCategoryConfirm": { "placeholders": { "name": { "type": "String" } } },
+  "@deleteCategoryConfirm": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "noCategories": "暂无分类",
   "albumCategories": "分类管理",
   "shareQrTitle": "分享二维码",
@@ -143,7 +161,13 @@
   "memberInvited": "已邀请",
   "removeMember": "移除成员",
   "removeMemberConfirm": "确定将 {name} 从该相册移除？",
-  "@removeMemberConfirm": { "placeholders": { "name": { "type": "String" } } },
+  "@removeMemberConfirm": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "roleOwner": "创建者",
   "roleCollaborator": "协作者",
   "selfMarker": "（我）",
@@ -183,7 +207,13 @@
   "queueSummaryWaiting": "等待中",
   "queueSummaryNeedAttention": "需关注",
   "queueRowUploadingPercent": "上传中 {percent}%",
-  "@queueRowUploadingPercent": { "placeholders": { "percent": { "type": "int" } } },
+  "@queueRowUploadingPercent": {
+    "placeholders": {
+      "percent": {
+        "type": "int"
+      }
+    }
+  },
   "queueRowConfirming": "正在确认上传",
   "queueRowWaitingUpload": "等待上传",
   "queueRowPreparing": "正在准备照片",
@@ -202,9 +232,21 @@
   "queueEmpty": "暂无上传任务",
   "queueRetryAllFailed": "一键重试全部失败",
   "queueAttemptCount": "已尝试 {count} 次",
-  "@queueAttemptCount": { "placeholders": { "count": { "type": "int" } } },
+  "@queueAttemptCount": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureQueued": "{count} 张待传",
-  "@captureQueued": { "placeholders": { "count": { "type": "int" } } },
+  "@captureQueued": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureFlipCamera": "切换前后摄像头",
   "captureFlash": "闪光灯",
   "uploadsHistory": "历史记录",
@@ -255,17 +297,41 @@
   "captureCategoryDefault": "默认分类",
   "captureSwitchHint": "切换分类仅影响之后拍摄的照片",
   "capturePendingBadge": "待传 {count}",
-  "@capturePendingBadge": { "placeholders": { "count": { "type": "int" } } },
+  "@capturePendingBadge": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureFailedBadge": "失败 {count}",
-  "@captureFailedBadge": { "placeholders": { "count": { "type": "int" } } },
+  "@captureFailedBadge": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "capturePickFromGallery": "从相册选择",
   "captureShutter": "拍摄",
   "captureQueuedBadge": "待传 {count}",
-  "@captureQueuedBadge": { "placeholders": { "count": { "type": "int" } } },
+  "@captureQueuedBadge": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureEnqueuedFeedback": "已加入队列",
   "captureExitTitle": "退出拍摄？",
   "captureExitBody": "还有 {count} 张照片未上传，退出后任务将在后台继续。",
-  "@captureExitBody": { "placeholders": { "count": { "type": "int" } } },
+  "@captureExitBody": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "captureKeepShooting": "继续拍摄",
   "captureExitConfirm": "退出",
   "cameraPermissionDenied": "无法访问相机，请在系统设置中允许相机权限",
@@ -274,7 +340,13 @@
   "uploadActionPick": "从相册选择",
   "uploadAction": "上传",
   "uploadEnqueuedCount": "已加入 {count} 张上传队列",
-  "@uploadEnqueuedCount": { "placeholders": { "count": { "type": "int" } } },
+  "@uploadEnqueuedCount": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "uploadPickNone": "未选择照片",
   "albumManagePhotos": "管理照片",
   "albumTakeFirstPhoto": "拍摄第一张照片",
@@ -309,16 +381,41 @@
   "readonlyMember": "您可以浏览其他人分享的照片",
   "moreActions": "更多操作",
   "photosTitle": "{count} 张照片",
-  "@photosTitle": { "placeholders": { "count": { "type": "int" } } },
+  "@photosTitle": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
   "photoUploadedBy": "上传者 {name}",
-  "@photoUploadedBy": { "placeholders": { "name": { "type": "String" } } },
+  "@photoUploadedBy": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "photoDimensions": "{width}×{height}",
-  "@photoDimensions": { "placeholders": { "width": { "type": "int" }, "height": { "type": "int" } } },
+  "@photoDimensions": {
+    "placeholders": {
+      "width": {
+        "type": "int"
+      },
+      "height": {
+        "type": "int"
+      }
+    }
+  },
   "photoStatus": "状态",
   "photoHideAction": "隐藏照片",
   "photoPublishAction": "重新发布",
   "shareScanHint": "扫码查看照片",
   "shareNotPublic": "该链接目前无法公开浏览",
   "hidePhotoTitle": "隐藏这张照片？",
-  "hidePhotoBody": "观众将不再看到这张照片。相册管理者可重新发布。"
+  "hidePhotoBody": "观众将不再看到这张照片。相册管理者可重新发布。",
+  "deleteAlbum": "删除相册",
+  "deleteAlbumConfirmTitle": "删除这个相册？",
+  "deleteAlbumConfirmBody": "删除后立即不可见且不可恢复。数据保留，恢复需运维处理。",
+  "albumDeleted": "相册已删除"
 }
diff --git a/apps/mobile/lib/pages/album_detail_page.dart b/apps/mobile/lib/pages/album_detail_page.dart
index 7d4f609..1970e8d 100644
--- a/apps/mobile/lib/pages/album_detail_page.dart
+++ b/apps/mobile/lib/pages/album_detail_page.dart
@@ -43,7 +43,7 @@ import 'share_qr_dialog.dart';
 const int _kRecentGridLimit = 9;
 
 /// 操作菜单（页面 07）的动作标识：面板 pop 返回，页面侧统一分发导航。
-enum AlbumAction { edit, members, categories, share }
+enum AlbumAction { edit, members, categories, share, delete }
 
 /// 相册详情（[albumId] 路由参数；进入后 GET /albums/{id} + 照片预览）。
 class AlbumDetailPage extends ConsumerStatefulWidget {
@@ -80,9 +80,7 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
       _errorCode = null;
     });
     try {
-      final album = await ref.read(apiClientProvider).getAlbum(
-            widget.albumId,
-          );
+      final album = await ref.read(apiClientProvider).getAlbum(widget.albumId);
       if (!mounted) return;
       setState(() {
         _album = album;
@@ -170,9 +168,7 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
     final album = _album;
     if (album == null) return;
     final changed = await Navigator.of(context).push<bool>(
-      MaterialPageRoute<bool>(
-        builder: (_) => AlbumFormPage(existing: album),
-      ),
+      MaterialPageRoute<bool>(builder: (_) => AlbumFormPage(existing: album)),
     );
     if (changed == true) {
       await _load();
@@ -184,9 +180,7 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
     final album = _album;
     if (album == null) return;
     await Navigator.of(context).push(
-      MaterialPageRoute<void>(
-        builder: (_) => AlbumMembersPage(album: album),
-      ),
+      MaterialPageRoute<void>(builder: (_) => AlbumMembersPage(album: album)),
     );
     // 成员变更不影响详情数据，回来无需刷新。
   }
@@ -195,9 +189,7 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
     final album = _album;
     if (album == null) return;
     await Navigator.of(context).push(
-      MaterialPageRoute<void>(
-        builder: (_) => AlbumPhotosPage(album: album),
-      ),
+      MaterialPageRoute<void>(builder: (_) => AlbumPhotosPage(album: album)),
     );
     // 管理页内可能发生隐藏/删除，回来后刷新预览网格。
     await _loadPhotoPreview();
@@ -210,7 +202,8 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
     if (album == null) return;
     await Navigator.of(context).push(
       MaterialPageRoute<void>(
-        builder: (_) => AlbumCategoriesPage(album: album, isManager: _isManager),
+        builder: (_) =>
+            AlbumCategoriesPage(album: album, isManager: _isManager),
       ),
     );
     await _load();
@@ -220,9 +213,9 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
     final album = _album;
     if (album == null) return;
     // UI-03 页面 19：分享从对话框升级为全屏分享页（真实封面 + 二维码）。
-    Navigator.of(context).push(
-      MaterialPageRoute<void>(builder: (_) => ShareQrPage(album: album)),
-    );
+    Navigator.of(
+      context,
+    ).push(MaterialPageRoute<void>(builder: (_) => ShareQrPage(album: album)));
   }
 
   /// 「⋯」操作菜单（页面 07）：BottomSheet 按角色过滤动作；先关面板再
@@ -243,9 +236,59 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
         await _openCategories();
       case AlbumAction.share:
         _shareQr();
+      case AlbumAction.delete:
+        await _deleteAlbum();
     }
   }
 
+  /// 软删除相册（admin/owner；契约 deleteAlbum）：二次确认 → DELETE →
+  /// 成功提示并整栈退回相册列表（详情/编辑等路由一并出栈），列表刷新。
+  Future<void> _deleteAlbum() async {
+    final album = _album;
+    if (album == null) return;
+    final l10n = AppLocalizations.of(context);
+    final theme = Theme.of(context);
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: Text(l10n.deleteAlbumConfirmTitle),
+        content: Text(l10n.deleteAlbumConfirmBody),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(ctx).pop(false),
+            child: Text(l10n.cancel),
+          ),
+          FilledButton(
+            style: FilledButton.styleFrom(
+              backgroundColor: theme.colorScheme.error,
+            ),
+            onPressed: () => Navigator.of(ctx).pop(true),
+            child: Text(l10n.deleteAlbum),
+          ),
+        ],
+      ),
+    );
+    if (confirmed != true || !mounted) return;
+    final messenger = ScaffoldMessenger.of(context);
+    try {
+      await ref.read(apiClientProvider).deleteAlbum(album.id);
+    } on AppException catch (error) {
+      // 删除失败：留在详情页，本地化错误码提示。
+      messenger.showSnackBar(
+        SnackBar(content: Text(l10n.messageForError(error))),
+      );
+      return;
+    } on Object {
+      messenger.showSnackBar(SnackBar(content: Text(l10n.errorGeneric)));
+      return;
+    }
+    if (!mounted) return;
+    messenger.showSnackBar(SnackBar(content: Text(l10n.albumDeleted)));
+    // 整栈退回列表根（编辑页等推栈路径一并清理），并刷新列表数据源。
+    Navigator.of(context).popUntil((route) => route.isFirst);
+    ref.read(albumListProvider.notifier).refresh();
+  }
+
   // ── 上传入口（底部固定栏：拍摄上传主按钮 / 从相册选择次按钮） ─────────
 
   /// 当前登录账号（TaskStore 隔离键；详情页处于登录壳内，null 视为异常）。
@@ -267,7 +310,10 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
           target: CaptureTarget(
             accountId: account,
             albumId: album.id,
-            albumTitle: albumDisplayTitle(album, AppLocalizations.of(context).localeName),
+            albumTitle: albumDisplayTitle(
+              album,
+              AppLocalizations.of(context).localeName,
+            ),
             categories: album.categories,
           ),
         ),
@@ -301,7 +347,9 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context);
     final album = _album;
-    final title = album == null ? l10n.albumDetail : albumDisplayTitle(album, l10n.localeName);
+    final title = album == null
+        ? l10n.albumDetail
+        : albumDisplayTitle(album, l10n.localeName);
     return Scaffold(
       appBar: AppBar(
         title: Text(title, maxLines: 1, overflow: TextOverflow.ellipsis),
@@ -313,90 +361,94 @@ class _AlbumDetailPageState extends ConsumerState<AlbumDetailPage> {
           ),
         ],
       ),
-      bottomNavigationBar: album == null ? null : _UploadBar(
-        uploadEnabled: album.uploadEnabled,
-        onCapture: _openCapture,
-        onPick: _pickFromGallery,
-      ),
+      bottomNavigationBar: album == null
+          ? null
+          : _UploadBar(
+              uploadEnabled: album.uploadEnabled,
+              onCapture: _openCapture,
+              onPick: _pickFromGallery,
+            ),
       body: _loading
           ? const Center(child: CircularProgressIndicator())
           : album == null
-              ? _ErrorRetryView(
-                  message: l10n.messageForErrorCode(_errorCode!),
-                  onRetry: _load,
-                )
-              : SingleChildScrollView(
-                  child: Column(
-                    crossAxisAlignment: CrossAxisAlignment.stretch,
-                    children: [
-                      // 封面：全宽 16:9（无封面同尺寸中性占位）。
-                      PhotoThumbnail(url: album.cover?.url, aspectRatio: 16 / 9),
-                      Padding(
-                        padding: const EdgeInsets.fromLTRB(
-                          kSpace16, kSpace16, kSpace16, 0,
+          ? _ErrorRetryView(
+              message: l10n.messageForErrorCode(_errorCode!),
+              onRetry: _load,
+            )
+          : SingleChildScrollView(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                children: [
+                  // 封面：全宽 16:9（无封面同尺寸中性占位）。
+                  PhotoThumbnail(url: album.cover?.url, aspectRatio: 16 / 9),
+                  Padding(
+                    padding: const EdgeInsets.fromLTRB(
+                      kSpace16,
+                      kSpace16,
+                      kSpace16,
+                      0,
+                    ),
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Text(
+                          albumDisplayTitle(album, l10n.localeName),
+                          style: Theme.of(context).textTheme.titleLarge,
                         ),
-                        child: Column(
-                          crossAxisAlignment: CrossAxisAlignment.start,
-                          children: [
-                            Text(
-                              albumDisplayTitle(album, l10n.localeName),
-                              style: Theme.of(context).textTheme.titleLarge,
-                            ),
-                            const SizedBox(height: kSpace4),
-                            Text(
-                              _metaLine(album, l10n),
-                              style: Theme.of(context).textTheme.bodySmall
-                                  ?.copyWith(
-                                    color: Theme.of(context)
-                                        .colorScheme
-                                        .onSurfaceVariant,
-                                  ),
-                            ),
-                            const SizedBox(height: kSpace12),
-                            _StatusSection(album: album),
-                          ],
+                        const SizedBox(height: kSpace4),
+                        Text(
+                          _metaLine(album, l10n),
+                          style: Theme.of(context).textTheme.bodySmall
+                              ?.copyWith(
+                                color: Theme.of(
+                                  context,
+                                ).colorScheme.onSurfaceVariant,
+                              ),
                         ),
-                      ),
-                      const SizedBox(height: kSpace16),
-                      // 次级四入口（Photos/Members/Categories/Share）。
-                      Padding(
-                        padding: const EdgeInsets.symmetric(
-                          horizontal: kSpace16,
-                        ),
-                        child: _ActionTiles(
-                          isManager: _isManager,
-                          onPhotos: _openPhotos,
-                          onMembers: _openMembers,
-                          onCategories: _openCategories,
-                          onShare: _shareQr,
-                        ),
-                      ),
-                      const SizedBox(height: kSpace24),
-                      // Recent photos：三列网格（≤9）/ 空相册安静占位 /
-                      // 处理中指示。
-                      Padding(
-                        padding: const EdgeInsets.symmetric(
-                          horizontal: kSpace16,
-                        ),
-                        child: _RecentPhotosSection(
-                          photos: _recentPhotos,
-                          loading: _photosLoading,
-                          isManager: _isManager,
-                          onOpenPhotos: _openPhotos,
-                        ),
-                      ),
-                      const SizedBox(height: kSpace32),
-                    ],
+                        const SizedBox(height: kSpace12),
+                        _StatusSection(album: album),
+                      ],
+                    ),
                   ),
-                ),
+                  const SizedBox(height: kSpace16),
+                  // 次级四入口（Photos/Members/Categories/Share）。
+                  Padding(
+                    padding: const EdgeInsets.symmetric(horizontal: kSpace16),
+                    child: _ActionTiles(
+                      isManager: _isManager,
+                      onPhotos: _openPhotos,
+                      onMembers: _openMembers,
+                      onCategories: _openCategories,
+                      onShare: _shareQr,
+                    ),
+                  ),
+                  const SizedBox(height: kSpace24),
+                  // Recent photos：三列网格（≤9）/ 空相册安静占位 /
+                  // 处理中指示。
+                  Padding(
+                    padding: const EdgeInsets.symmetric(horizontal: kSpace16),
+                    child: _RecentPhotosSection(
+                      photos: _recentPhotos,
+                      loading: _photosLoading,
+                      isManager: _isManager,
+                      onOpenPhotos: _openPhotos,
+                    ),
+                  ),
+                  const SizedBox(height: kSpace32),
+                ],
+              ),
+            ),
     );
   }
 
   /// 单行时间/场地（相册时区墙钟 + 场地语言回退；结束未定显示「未定」）。
   static String _metaLine(Album album, AppLocalizations l10n) {
     final venue = albumDisplayVenue(album, l10n.localeName);
-    final start =
-        formatAlbumDateTime(album.startAt, album.timezone, l10n.localeName);
+    final start = formatAlbumDateTime(
+      album.startAt,
+      album.timezone,
+      l10n.localeName,
+    );
     final end = album.endAt == null
         ? l10n.notSet
         : formatAlbumDateTime(album.endAt!, album.timezone, l10n.localeName);
@@ -449,6 +501,20 @@ class AlbumActionSheet extends StatelessWidget {
               title: Text(l10n.shareAlbum),
               onTap: () => Navigator.of(context).pop(AlbumAction.share),
             ),
+            if (isManager)
+              ListTile(
+                leading: Icon(
+                  Icons.delete_outline,
+                  color: theme.colorScheme.error,
+                ),
+                title: Text(
+                  l10n.deleteAlbum,
+                  style: theme.textTheme.bodyLarge?.copyWith(
+                    color: theme.colorScheme.error,
+                  ),
+                ),
+                onTap: () => Navigator.of(context).pop(AlbumAction.delete),
+              ),
             const Divider(indent: kSpace16, endIndent: kSpace16),
             ListTile(
               title: Center(
@@ -482,16 +548,24 @@ class _StatusSection extends StatelessWidget {
       runSpacing: kSpace8,
       children: [
         StateBadge(
-          variant: album.publicEnabled ? BadgeVariant.info : BadgeVariant.neutral,
+          variant: album.publicEnabled
+              ? BadgeVariant.info
+              : BadgeVariant.neutral,
           label: album.publicEnabled ? l10n.tagPublic : l10n.albumPublicOff,
         ),
         StateBadge(
-          variant:
-              album.uploadEnabled ? BadgeVariant.success : BadgeVariant.neutral,
-          label: album.uploadEnabled ? l10n.albumUploadsOn : l10n.albumUploadsOff,
+          variant: album.uploadEnabled
+              ? BadgeVariant.success
+              : BadgeVariant.neutral,
+          label: album.uploadEnabled
+              ? l10n.albumUploadsOn
+              : l10n.albumUploadsOff,
         ),
         if (album.status == AlbumStatus.offline)
-          StateBadge(variant: BadgeVariant.error, label: l10n.albumStatusOffline),
+          StateBadge(
+            variant: BadgeVariant.error,
+            label: l10n.albumStatusOffline,
+          ),
       ],
     );
   }
@@ -592,11 +666,7 @@ class _ActionTile extends StatelessWidget {
                   color: theme.colorScheme.primaryContainer,
                   borderRadius: BorderRadius.circular(kRadiusInput),
                 ),
-                child: Icon(
-                  icon,
-                  size: 22,
-                  color: theme.colorScheme.primary,
-                ),
+                child: Icon(icon, size: 22, color: theme.colorScheme.primary),
               ),
               const SizedBox(height: kSpace8),
               Text(
@@ -693,8 +763,7 @@ class _RecentPhotosSection extends StatelessWidget {
               aspectRatio: 1,
             ),
           ),
-        ]
-        else
+        ] else
           Padding(
             padding: const EdgeInsets.symmetric(vertical: kSpace24),
             child: Column(
@@ -726,9 +795,8 @@ class _RecentPhotosSection extends StatelessWidget {
   }
 
   /// 是否存在服务端仍在处理的照片（处理中提示；不当绝对空白）。
-  bool get _hasProcessing => photos.any(
-        (p) => p.processingState == PhotoProcessingState.processing,
-      );
+  bool get _hasProcessing =>
+      photos.any((p) => p.processingState == PhotoProcessingState.processing);
 }
 
 /// 底部固定上传栏：拍摄上传（主）+ 从相册选择（次），避让安全区；上传
@@ -839,4 +907,3 @@ class _ErrorRetryView extends StatelessWidget {
     );
   }
 }
-
diff --git a/packages/contracts/openapi.yaml b/packages/contracts/openapi.yaml
index 0d40a60..049cad2 100644
--- a/packages/contracts/openapi.yaml
+++ b/packages/contracts/openapi.yaml
@@ -267,6 +267,34 @@ paths:
   /albums/{albumId}:
     parameters:
       - $ref: '#/components/parameters/AlbumId'
+    delete:
+      operationId: deleteAlbum
+      tags: [albums]
+      summary: 软删除相册
+      description: >-
+        标记 status=deleted（软删除）：管理端列表与公开端即刻不可见，成员/上传/
+        资产等全部子资源随之 404；数据保留（物理删除走独立运维流程），不提供
+        恢复端点。权限同「配置相册」（公司管理员或相册创建者）。事件走
+        album.updated（priority=high）同步 ov 副本下线。
+      security:
+        - bearerAuth: []
+      responses:
+        '204':
+          description: 已删除（幂等：重复删除同样 204）。
+        '401':
+          $ref: '#/components/responses/Unauthorized'
+        '403':
+          description: 无「配置相册」权限（仅创建者或管理员，AUTH_FORBIDDEN）。
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+        '404':
+          description: 相册不存在（ALBUM_NOT_FOUND，含已删除）。
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
     get:
       operationId: getAlbum
       tags: [albums]
@@ -2781,6 +2809,7 @@ components:
           enum:
             - active
             - offline
+            - deleted
         defaultLocale:
           $ref: '#/components/schemas/Locale'
         timezone:
@@ -2839,8 +2868,9 @@ components:
           description: |
             相册封面摘要（UI-01，readOnly 可选扩展）：当前生效封面资产
             （album_assets kind=cover、state=effective 的最新一行）的短期
-            签名 URL；未配置封面为 null。列表端点按页批量组装（非逐相册
-            查询）；旧客户端忽略本字段不受影响。
+            签名 URL；未配置封面为 null。宣传图/封面共用（2026-09-23 决策）：
+            未配置封面时回退最新生效宣传图（传一张即可两用）。列表端点按页
+            批量组装（非逐相册查询）；旧客户端忽略本字段不受影响。
           readOnly: true
           anyOf:
             - $ref: '#/components/schemas/SignedUrl'
@@ -4397,7 +4427,9 @@ components:
           items:
             $ref: '#/components/schemas/PublicCategory'
         banner:
-          description: 封面图签名 URL；未设置为 null。
+          description: |
+            宣传图签名 URL；未设置为 null。宣传图/封面共用（2026-09-23 决策）：
+            未配置宣传图时回退最新生效封面（传一张即可两用）。
           anyOf:
             - $ref: '#/components/schemas/SignedUrl'
             - type: 'null'
diff --git a/packages/contracts/src/generated/openapi.d.ts b/packages/contracts/src/generated/openapi.d.ts
index f5270dd..c075a27 100644
--- a/packages/contracts/src/generated/openapi.d.ts
+++ b/packages/contracts/src/generated/openapi.d.ts
@@ -129,7 +129,11 @@ export interface paths {
         get: operations["getAlbum"];
         put?: never;
         post?: never;
-        delete?: never;
+        /**
+         * 软删除相册
+         * @description 标记 status=deleted（软删除）：管理端列表与公开端即刻不可见，成员/上传/ 资产等全部子资源随之 404；数据保留（物理删除走独立运维流程），不提供 恢复端点。权限同「配置相册」（公司管理员或相册创建者）。事件走 album.updated（priority=high）同步 ov 副本下线。
+         */
+        delete: operations["deleteAlbum"];
         options?: never;
         head?: never;
         /**
@@ -1340,7 +1344,7 @@ export interface components {
              * @default active
              * @enum {string}
              */
-            readonly status: "active" | "offline";
+            readonly status: "active" | "offline" | "deleted";
             defaultLocale: components["schemas"]["Locale"];
             /** @description 活动 IANA 时区。 */
             timezone: string;
@@ -1389,8 +1393,9 @@ export interface components {
             /**
              * @description 相册封面摘要（UI-01，readOnly 可选扩展）：当前生效封面资产
              *     （album_assets kind=cover、state=effective 的最新一行）的短期
-             *     签名 URL；未配置封面为 null。列表端点按页批量组装（非逐相册
-             *     查询）；旧客户端忽略本字段不受影响。
+             *     签名 URL；未配置封面为 null。宣传图/封面共用（2026-09-23 决策）：
+             *     未配置封面时回退最新生效宣传图（传一张即可两用）。列表端点按页
+             *     批量组装（非逐相册查询）；旧客户端忽略本字段不受影响。
              */
             readonly cover?: components["schemas"]["SignedUrl"] | null;
         };
@@ -2267,7 +2272,10 @@ export interface components {
             translation: components["schemas"]["PublicAlbumTranslation"];
             /** @description 分类列表（按 sortOrder 升序）。 */
             categories: components["schemas"]["PublicCategory"][];
-            /** @description 封面图签名 URL；未设置为 null。 */
+            /**
+             * @description 宣传图签名 URL；未设置为 null。宣传图/封面共用（2026-09-23 决策）：
+             *     未配置宣传图时回退最新生效封面（传一张即可两用）。
+             */
             banner: components["schemas"]["SignedUrl"] | null;
             /**
              * Format: int64
@@ -2922,6 +2930,46 @@ export interface operations {
             500: components["responses"]["InternalError"];
         };
     };
+    deleteAlbum: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                /** @description 相册 ID。 */
+                albumId: components["parameters"]["AlbumId"];
+            };
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description 已删除（幂等：重复删除同样 204）。 */
+            204: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content?: never;
+            };
+            401: components["responses"]["Unauthorized"];
+            /** @description 无「配置相册」权限（仅创建者或管理员，AUTH_FORBIDDEN）。 */
+            403: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["Error"];
+                };
+            };
+            /** @description 相册不存在（ALBUM_NOT_FOUND，含已删除）。 */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["Error"];
+                };
+            };
+        };
+    };
     updateAlbum: {
         parameters: {
             query?: never;
diff --git a/packages/db-ov/prisma/migrations/20260923095000_albums_ov_cover_asset_key/migration.sql b/packages/db-ov/prisma/migrations/20260923095000_albums_ov_cover_asset_key/migration.sql
new file mode 100644
index 0000000..dc5d7d0
--- /dev/null
+++ b/packages/db-ov/prisma/migrations/20260923095000_albums_ov_cover_asset_key/migration.sql
@@ -0,0 +1,6 @@
+-- 宣传图/封面共用（用户决策 2026-09-23）：albums_ov 增 coverAssetKey 投影列
+-- （asset.updated kind=cover 分流写入；banner/cover 互为展示层回退）。
+-- 存量行回填：迁移后由对账 bootstrap（asset.updated 当前态重放）或下次
+-- cover 资产事件自然补齐，不手工 UPDATE。
+-- AlterTable
+ALTER TABLE `albums_ov` ADD COLUMN `coverAssetKey` VARCHAR(255) NULL;
diff --git a/packages/db-ov/prisma/schema.prisma b/packages/db-ov/prisma/schema.prisma
index b44751c..8819f28 100644
--- a/packages/db-ov/prisma/schema.prisma
+++ b/packages/db-ov/prisma/schema.prisma
@@ -47,7 +47,11 @@ model albums_ov {
   emergencyDisabled       Boolean   @default(false)
   translations            Json // [{locale,title,description,venue,address}]（cn 原文数组）
   categories              Json // [{id,sortOrder,translations:[{locale,name}]}]
+  // 宣传图/封面投影键（asset.updated 事件按 kind 分列存储）。展示层双向回退
+  // （用户决策 2026-09-23「宣传图和封面用一个」）：banner 缺失时公开侧回退
+  // cover 键——需求 §4.2「封面可复用宣传图」基线的反向补充。
   bannerAssetKey          String?   @db.VarChar(255)
+  coverAssetKey           String?   @db.VarChar(255)
   defaultLocale           String    @db.VarChar(16)
   timezone                String    @default("Asia/Shanghai") @db.VarChar(64)
   startAt                 DateTime? @db.DateTime(6)
diff --git a/services/api/src/albums/albums.controller.ts b/services/api/src/albums/albums.controller.ts
index a430912..5b4c8ee 100644
--- a/services/api/src/albums/albums.controller.ts
+++ b/services/api/src/albums/albums.controller.ts
@@ -9,7 +9,9 @@
 import {
   Body,
   Controller,
+  Delete,
   Get,
+  HttpCode,
   HttpStatus,
   Param,
   Patch,
@@ -79,6 +81,15 @@ export class AlbumsController {
     return this.albumsService.get(userOf(req), albumId);
   }
 
+  @Delete(':albumId')
+  @HttpCode(HttpStatus.NO_CONTENT)
+  deleteAlbum(
+    @Param('albumId') albumId: string,
+    @Req() req: AuthenticatedRequest,
+  ): Promise<void> {
+    return this.albumsService.softDelete(userOf(req), albumId);
+  }
+
   @Patch(':albumId')
   updateAlbum(
     @Param('albumId') albumId: string,
diff --git a/services/api/src/albums/albums.service.ts b/services/api/src/albums/albums.service.ts
index 3fe076b..96bc33f 100644
--- a/services/api/src/albums/albums.service.ts
+++ b/services/api/src/albums/albums.service.ts
@@ -332,7 +332,7 @@ export class AlbumsService {
     for (let attempt = 0; attempt < 3 && outcome === 'retry'; attempt++) {
       outcome = await this.prisma.$transaction(async (tx) => {
         const album = await tx.albums.findUnique({ where: { id: albumId } });
-        if (album === null) {
+        if (album === null || album.status === 'deleted') {
           throw albumNotFound();
         }
 
@@ -627,7 +627,10 @@ export class AlbumsService {
       }
     }
 
-    const where: Prisma.albumsWhereInput = {};
+    const where: Prisma.albumsWhereInput = {
+      // 软删除（deleteAlbum）：列表不可见（数据保留，运维可恢复）。
+      status: { not: 'deleted' },
+    };
     if (user.role !== 'admin') {
       const memberships = await this.prisma.album_members.findMany({
         where: { userId: user.id, status: 'active' },
@@ -664,24 +667,31 @@ export class AlbumsService {
     // UI-01 封面摘要：本页相册一次批量查询（kind=cover、state=effective，
     // createdAt/id DESC 后每相册首行即最新 effective 行——同 banner 替换语义，
     // cover 无 locale 偏好）。presign 为本地计算，循环不产生网络/查询放大。
+    // 宣传图/封面共用（用户决策 2026-09-23）：cover 缺失回退最新 effective
+    // banner 行（传一张即可两用）——两类合并查询后按 kind 优先 cover。
     const covers = await this.prisma.album_assets.findMany({
       where: {
         albumId: { in: page.map((a) => a.id) },
-        kind: 'cover',
+        kind: { in: ['cover', 'banner'] },
         state: 'effective',
       },
       orderBy: [{ createdAt: 'desc' }, { id: 'desc' }],
-      select: { albumId: true, objectKey: true },
+      select: { albumId: true, objectKey: true, kind: true },
     });
     const coverKeyByAlbum = new Map<string, string>();
+    const bannerKeyByAlbum = new Map<string, string>();
     for (const row of covers) {
-      if (!coverKeyByAlbum.has(row.albumId)) {
-        coverKeyByAlbum.set(row.albumId, row.objectKey);
+      // 各自首见即最新（DESC）；合并时 cover 恒优先（两类并存时封面位用 cover）。
+      if (row.kind === 'cover') {
+        if (!coverKeyByAlbum.has(row.albumId)) coverKeyByAlbum.set(row.albumId, row.objectKey);
+      } else if (!bannerKeyByAlbum.has(row.albumId)) {
+        bannerKeyByAlbum.set(row.albumId, row.objectKey);
       }
     }
     const coverByAlbum = new Map<string, SignedUrlResponse>();
-    for (const [albumId, objectKey] of coverKeyByAlbum) {
-      coverByAlbum.set(albumId, await this.presign(objectKey));
+    for (const albumId of page.map((a) => a.id)) {
+      const objectKey = coverKeyByAlbum.get(albumId) ?? bannerKeyByAlbum.get(albumId);
+      if (objectKey !== undefined) coverByAlbum.set(albumId, await this.presign(objectKey));
     }
 
     const last = page.at(-1);
@@ -713,11 +723,82 @@ export class AlbumsService {
    * （sortOrder 升序；写入入口为 CategoriesService，Task 17 起）。相册域无
    * Prisma relation，全部二次查询应用层组装。
    */
+  /**
+   * 软删除（契约 deleteAlbum）：status=deleted，管理列表/公开端即刻不可见，
+   * 数据保留（物理删除走独立运维流程），无恢复端点。
+   * 权限与 update 一致（canView 404 → canManage 403，防枚举）。
+   * 事务：乐观锁 claim（entityVersion 自增）+ outbox album.updated
+   * （priority=high——公开可见性类变更，ov 观众侧须尽快下线）+ audit。
+   * 幂等：已删除重复删除同样 204。
+   */
+  async softDelete(user: AuthUser, albumId: string): Promise<void> {
+    if (!(await this.permissions.canViewAlbum(user, albumId))) {
+      throw albumNotFound();
+    }
+    if (!(await this.permissions.canManageAlbum(user, albumId))) {
+      throw albumForbidden('仅创建者或管理员可删除相册');
+    }
+    for (let attempt = 0; attempt < 3; attempt++) {
+      const done = await this.prisma.$transaction(async (tx) => {
+        const album = await tx.albums.findUnique({ where: { id: albumId } });
+        if (album === null) {
+          throw albumNotFound();
+        }
+        if (album.status === 'deleted') {
+          return true as const; // 幂等：重复删除直接成功
+        }
+        const claimed = await tx.albums.updateMany({
+          where: { id: albumId, entityVersion: album.entityVersion },
+          data: { status: 'deleted', entityVersion: { increment: 1 } },
+        });
+        if (claimed.count === 0) {
+          return false as const; // 并发更新：整事务重跑
+        }
+        const updated = await tx.albums.findUniqueOrThrow({
+          where: { id: albumId },
+        });
+        const translations = await tx.album_translations.findMany({
+          where: { albumId },
+          orderBy: { locale: 'asc' },
+        });
+        // 公开可见性类变更 → high（与公开关闭迁移同优先级）。
+        await tx.outbox_events.create({
+          data: {
+            type: 'album.updated',
+            albumId,
+            entityVersion: album.entityVersion + 1,
+            priority: 'high',
+            payload: buildAlbumUpdatedPayload(
+              updated,
+              translations,
+            ) as unknown as Prisma.InputJsonValue,
+          },
+        });
+        await tx.audit_logs.create({
+          data: {
+            actorId: user.id,
+            action: 'album.delete',
+            resourceId: albumId,
+          },
+        });
+        return true as const;
+      });
+      if (done) return;
+      // 败方重试（并发窗口极小；3 次后 5xx 兜底与 update 同策略）
+    }
+    throw new ApiException(
+      ErrorCodes.INTERNAL_ERROR,
+      'Internal server error',
+      HttpStatus.INTERNAL_SERVER_ERROR,
+    );
+  }
+
   private async loadAlbum(albumId: string): Promise<AlbumResponse | null> {
     const album = await this.prisma.albums.findUnique({
       where: { id: albumId },
     });
-    if (album === null) {
+    if (album === null || album.status === 'deleted') {
+      // 已删除与不存在同 null（调用方映射 404；软删除语义）。
       return null;
     }
     const translations = await this.prisma.album_translations.findMany({
@@ -770,11 +851,20 @@ export class AlbumsService {
   private async latestCoverOf(
     albumId: string,
   ): Promise<SignedUrlResponse | null> {
-    const row = await this.prisma.album_assets.findFirst({
+    // 宣传图/封面共用（用户决策 2026-09-23）：cover 缺失回退最新 effective
+    // banner 行（与列表摘要同语义）。
+    const cover = await this.prisma.album_assets.findFirst({
       where: { albumId, kind: 'cover', state: 'effective' },
       orderBy: [{ createdAt: 'desc' }, { id: 'desc' }],
       select: { objectKey: true },
     });
+    const row =
+      cover ??
+      (await this.prisma.album_assets.findFirst({
+        where: { albumId, kind: 'banner', state: 'effective' },
+        orderBy: [{ createdAt: 'desc' }, { id: 'desc' }],
+        select: { objectKey: true },
+      }));
     return row === null ? null : this.presign(row.objectKey);
   }
 
diff --git a/services/api/src/albums/assets.service.ts b/services/api/src/albums/assets.service.ts
index 0f1c30d..83be55e 100644
--- a/services/api/src/albums/assets.service.ts
+++ b/services/api/src/albums/assets.service.ts
@@ -84,9 +84,10 @@ export class AssetsService {
     //    注意不查 uploadEnabled——开关只管照片直传（§4.9），不管资产配置。
     const album = await this.prisma.albums.findUnique({
       where: { id: albumId },
-      select: { id: true },
+      select: { id: true, status: true },
     });
-    if (album === null) {
+    if (album === null || album.status === 'deleted') {
+      // 已删除与不存在同码 404（软删除语义，deleteAlbum）。
       throw albumNotFound();
     }
     // ④ 大小限额（惰性读 env）与 filename 扩展名白名单（对象键后缀派生）。
diff --git a/services/api/src/albums/categories.service.ts b/services/api/src/albums/categories.service.ts
index be62dac..02f0eb3 100644
--- a/services/api/src/albums/categories.service.ts
+++ b/services/api/src/albums/categories.service.ts
@@ -288,10 +288,10 @@ export class CategoriesService {
     }
     const album = await this.prisma.albums.findUnique({
       where: { id: albumId },
-      select: { id: true },
+      select: { id: true, status: true },
     });
-    if (album === null) {
-      // admin 视角 canView 恒真，空值兜底同码 404。
+    if (album === null || album.status === 'deleted') {
+      // admin 视角 canView 恒真，空值兜底同码 404；已删除同码（软删除）。
       throw albumNotFound();
     }
   }
diff --git a/services/api/src/albums/members.service.ts b/services/api/src/albums/members.service.ts
index ab2ab03..d561b45 100644
--- a/services/api/src/albums/members.service.ts
+++ b/services/api/src/albums/members.service.ts
@@ -123,9 +123,10 @@ export class MembersService {
     // 空相册兜底同码 404——契约「相册不存在，或当前用户不可见」。
     const albumExists = await this.prisma.albums.findUnique({
       where: { id: albumId },
-      select: { id: true },
+      select: { id: true, status: true },
     });
-    if (albumExists === null) {
+    if (albumExists === null || albumExists.status === 'deleted') {
+      // 已删除与不存在同码 404（软删除语义，deleteAlbum）。
       throw albumNotFound();
     }
     let decoded: ReturnType<typeof decodeKeysetCursor> = null;
diff --git a/services/api/src/albums/watermark.service.ts b/services/api/src/albums/watermark.service.ts
index 7ec9f35..78666d2 100644
--- a/services/api/src/albums/watermark.service.ts
+++ b/services/api/src/albums/watermark.service.ts
@@ -198,9 +198,10 @@ export class WatermarkService {
     }
     const album = await this.prisma.albums.findUnique({
       where: { id: albumId },
-      select: { id: true },
+      select: { id: true, status: true },
     });
-    if (album === null) {
+    if (album === null || album.status === 'deleted') {
+      // 已删除与不存在同码 404（软删除语义，deleteAlbum）。
       throw albumNotFound();
     }
     const latestConfig = await this.prisma.watermark_configs.findFirst({
diff --git a/services/api/src/embed/embed.service.ts b/services/api/src/embed/embed.service.ts
index c44de82..95753f2 100644
--- a/services/api/src/embed/embed.service.ts
+++ b/services/api/src/embed/embed.service.ts
@@ -312,9 +312,10 @@ export class EmbedSlotsService {
         if (nextAlbumId !== null) {
           const album = await tx.albums.findUnique({
             where: { id: nextAlbumId },
-            select: { publicToken: true },
+            select: { publicToken: true, status: true },
           });
-          if (album === null) {
+          if (album === null || album.status === 'deleted') {
+            // 已删除相册不可绑定（软删除语义；既有绑定由拉取端容错）。
             throw albumNotFound();
           }
           nextAlbumPublicToken = album.publicToken;
diff --git a/services/api/src/photos/photos.service.ts b/services/api/src/photos/photos.service.ts
index df7a2f8..b9b5c2e 100644
--- a/services/api/src/photos/photos.service.ts
+++ b/services/api/src/photos/photos.service.ts
@@ -142,9 +142,10 @@ export class PhotosService {
     // 蕴含相册存在），空相册兜底同码 404——契约「相册不存在，或当前用户不可见」。
     const albumExists = await this.prisma.albums.findUnique({
       where: { id: albumId },
-      select: { id: true },
+      select: { id: true, status: true },
     });
-    if (albumExists === null) {
+    if (albumExists === null || albumExists.status === 'deleted') {
+      // 已删除与不存在同码 404（软删除语义，deleteAlbum）。
       throw albumNotFound();
     }
 
@@ -319,9 +320,10 @@ export class PhotosService {
     // listAlbumMembers/listAlbumPhotos 先例）。
     const albumExists = await this.prisma.albums.findUnique({
       where: { id: albumId },
-      select: { id: true },
+      select: { id: true, status: true },
     });
-    if (albumExists === null) {
+    if (albumExists === null || albumExists.status === 'deleted') {
+      // 已删除与不存在同码 404（软删除语义，deleteAlbum）。
       throw albumNotFound();
     }
 
diff --git a/services/api/src/public-ov/public-ov.service.ts b/services/api/src/public-ov/public-ov.service.ts
index 210583c..e639eab 100644
--- a/services/api/src/public-ov/public-ov.service.ts
+++ b/services/api/src/public-ov/public-ov.service.ts
@@ -142,10 +142,10 @@ export class PublicOvService {
     const categories = this.categoryEntries(album.categories)
       .slice()
       .sort((a, b) => a.sortOrder - b.sortOrder || (a.id < b.id ? -1 : 1));
-    const banner =
-      album.bannerAssetKey === null
-        ? null
-        : await this.presign(album.bannerAssetKey);
+    // 宣传图/封面共用（用户决策 2026-09-23）：banner 投影键缺失回退 cover 键
+    // （需求 §4.2「封面可复用宣传图」基线的反向补充——传一张即可两用）。
+    const bannerKey = album.bannerAssetKey ?? album.coverAssetKey;
+    const banner = bannerKey === null ? null : await this.presign(bannerKey);
 
     const stats = await this.prisma.album_stats.findUnique({
       where: { albumId: album.albumId },
diff --git a/services/api/src/public/public.service.ts b/services/api/src/public/public.service.ts
index d49e536..b202fd2 100644
--- a/services/api/src/public/public.service.ts
+++ b/services/api/src/public/public.service.ts
@@ -112,10 +112,18 @@ export class PublicService {
       where: { albumId: album.id, kind: 'banner', state: 'effective' },
       orderBy: [{ createdAt: 'desc' }, { id: 'desc' }],
     });
-    const bannerRow =
+    let bannerRow =
       bannerAssets.find((row) => row.locale === resolved.locale) ??
       bannerAssets.find((row) => row.locale === null) ??
       null;
+    // 宣传图/封面共用（用户决策 2026-09-23）：banner 缺失回退最新 effective
+    // cover 行（传一张即可两用；与 ov 公开侧同语义）。
+    if (bannerRow === null) {
+      bannerRow = await this.prisma.album_assets.findFirst({
+        where: { albumId: album.id, kind: 'cover', state: 'effective' },
+        orderBy: [{ createdAt: 'desc' }, { id: 'desc' }],
+      });
+    }
     const banner =
       bannerRow === null ? null : await this.presign(bannerRow.objectKey);
 
diff --git a/services/api/src/sync-inbox/sync-inbox.service.ts b/services/api/src/sync-inbox/sync-inbox.service.ts
index 02e926b..d92ea79 100644
--- a/services/api/src/sync-inbox/sync-inbox.service.ts
+++ b/services/api/src/sync-inbox/sync-inbox.service.ts
@@ -395,13 +395,20 @@ export class SyncInboxService {
     }
     if (event.entityType === 'asset') {
       const p = event.payload as unknown as AssetUpdatedPayload;
+      // banner/cover 分列投影（宣传图/封面共用决策 2026-09-23：展示层双向
+      // 回退，见 public-ov banner 组装）；logo 仍无投影位（YAGNI），仅推进
+      // 版本账本。替换语义同 banner：新事件覆盖旧键。
       if (p.kind === 'banner') {
         await tx.albums_ov.update({
           where: { albumId: event.albumId },
           data: { bannerAssetKey: p.objectKey },
         });
+      } else if (p.kind === 'cover') {
+        await tx.albums_ov.update({
+          where: { albumId: event.albumId },
+          data: { coverAssetKey: p.objectKey },
+        });
       }
-      // cover/logo：ov schema 无投影位（YAGNI，schema 注释），仅推进版本账本。
       return undefined;
     }
     // slot-state（P4b Task 2）：全量快照直投 embed_slots_ov（版本单调已由 ②
diff --git a/services/api/test/embed.e2e-spec.ts b/services/api/test/embed.e2e-spec.ts
index 5c83fa1..af1b2f7 100644
--- a/services/api/test/embed.e2e-spec.ts
+++ b/services/api/test/embed.e2e-spec.ts
@@ -264,6 +264,14 @@ describe('embed slots (e2e)', () => {
         intervalMs: 5000,
         lang: 'auto',
         collapsedDefault: false,
+        // UI-04 新字段（旧形状创建 → 归一化默认：carousel/16/true）。
+        imageFit: 'contain',
+        offsetX: 16,
+        offsetBottom: 24,
+        zIndex: 1000,
+        displayMode: 'carousel',
+        scrollSpeed: 16,
+        reactionsEnabled: true,
       },
       updatedAt: expect.any(String),
     });
@@ -294,6 +302,9 @@ describe('embed slots (e2e)', () => {
       offsetX: 16,
       offsetBottom: 24,
       zIndex: 1000,
+      displayMode: 'carousel',
+      scrollSpeed: 16,
+      reactionsEnabled: true,
     });
 
     // 校验失败：settings 缺字段 / intervalMs 越界 / 空 name。
@@ -794,6 +805,9 @@ describe('embed slots (e2e)', () => {
       offsetX: 40,
       offsetBottom: 80,
       zIndex: 5000,
+      displayMode: 'carousel',
+      scrollSpeed: 16,
+      reactionsEnabled: true,
     });
 
     // 新字段校验：非法枚举/越界/非整数 → 400（老字段约束不回归）。
@@ -845,6 +859,9 @@ describe('embed slots (e2e)', () => {
       offsetX: 16,
       offsetBottom: 24,
       zIndex: 1000,
+      displayMode: 'carousel',
+      scrollSpeed: 16,
+      reactionsEnabled: true,
     };
     expect(patched.body.settings).toEqual(normalizedFull);
 
@@ -868,6 +885,9 @@ describe('embed slots (e2e)', () => {
       offsetX: 8,
       offsetBottom: 120,
       zIndex: 999,
+      displayMode: 'carousel',
+      scrollSpeed: 16,
+      reactionsEnabled: true,
     };
     expect(explicit.body.settings).toEqual(explicitFull);
 
@@ -911,6 +931,9 @@ describe('embed slots (e2e)', () => {
       offsetX: 16,
       offsetBottom: 24,
       zIndex: 1000,
+      displayMode: 'carousel',
+      scrollSpeed: 16,
+      reactionsEnabled: true,
     });
   });
 });
diff --git a/services/api/test/public-ov.e2e-spec.ts b/services/api/test/public-ov.e2e-spec.ts
index f51a848..07d99b8 100644
--- a/services/api/test/public-ov.e2e-spec.ts
+++ b/services/api/test/public-ov.e2e-spec.ts
@@ -509,4 +509,56 @@ describe('public-ov (e2e)', () => {
     expect(enable.status).toBe(200);
     expect((await getJson(ovBase, `/v1/public/albums/${token}`)).status).toBe(200);
   });
+
+  it('⑥ banner 回退 cover（asset.updated kind=cover 投影 coverAssetKey + ov 读侧回退）', async () => {
+    // cn 真实链路：建相册 → cover 资产 init/PUT/complete（真实 asset.updated 事件）。
+    const album = await request(cnBase)
+      .post('/v1/albums')
+      .set('Authorization', `Bearer ${adminToken}`)
+      .send({
+        translations: [{ locale: 'zh-CN', title: '仅封面 ov 相册' }],
+        defaultLocale: 'zh-CN',
+        startAt: '2026-10-02T10:00:00.000Z',
+      });
+    expect(album.status).toBe(201);
+    const token = album.body.publicToken as string;
+
+    const coverJpeg = await makeJpeg(960, 320, { r: 90, g: 130, b: 180 });
+    const init = await request(cnBase)
+      .post(`/v1/albums/${album.body.id as string}/assets`)
+      .set('Authorization', `Bearer ${adminToken}`)
+      .send({
+        kind: 'cover',
+        filename: 'cover.jpg',
+        bytes: coverJpeg.length,
+        contentType: 'image/jpeg',
+      });
+    expect(init.status).toBe(201);
+    const credential = init.body.credential as { url: string; method: string; headers: Record<string, string> };
+    await fetch(credential.url, {
+      method: credential.method,
+      headers: credential.headers,
+      body: new Uint8Array(coverJpeg),
+    });
+    const done = await request(cnBase)
+      .post(`/v1/albums/${album.body.id as string}/assets/${init.body.assetId as string}/complete`)
+      .set('Authorization', `Bearer ${adminToken}`);
+    expect(done.status).toBe(200);
+
+    // 真实发送管线：asset.updated(cover) → ov coverAssetKey 投影。
+    await drainSender();
+
+    // ov 读侧回退：bannerAssetKey 空 → coverAssetKey 签发（字节=cover 对象）。
+    const before = await prismaOv.albums_ov.findUnique({ where: { publicToken: token } });
+    expect(before?.bannerAssetKey).toBeNull();
+    expect(before?.coverAssetKey).toBeTruthy();
+
+    const ov = await getJson(ovBase, `/v1/public/albums/${token}`);
+    expect(ov.status).toBe(200);
+    const banner = ov.body.banner as { url: string };
+    expect(banner).not.toBeNull();
+    const fetched = await fetch(banner.url);
+    expect(fetched.status).toBe(200);
+    expect(fetched.headers.get('content-type')).toBe('image/jpeg');
+  });
 });
diff --git a/services/api/test/public.e2e-spec.ts b/services/api/test/public.e2e-spec.ts
index 8c5c70b..7123bef 100644
--- a/services/api/test/public.e2e-spec.ts
+++ b/services/api/test/public.e2e-spec.ts
@@ -255,6 +255,7 @@ describe('public (e2e)', () => {
     let disabledToken: string;
     let bannerToken: string;
     let noBannerToken: string;
+    let coverOnlyToken: string;
     let catAId: string;
     let catBId: string;
     let catZhOnlyId: string;
@@ -342,6 +343,24 @@ describe('public (e2e)', () => {
         translations: [{ locale: 'zh-CN', title: '无封面相册' }],
       });
       noBannerToken = noBanner.publicToken;
+
+      // 宣传图/封面共用（2026-09-23 决策）：仅 cover 相册 → banner 回退 cover。
+      const coverOnly = await seedAlbum({
+        alias: 'pub-coveronly',
+        translations: [{ locale: 'zh-CN', title: '仅封面相册' }],
+      });
+      coverOnlyToken = coverOnly.publicToken;
+      const coverOnlyKey = `${KEY_ROOT}/albums/${coverOnly.id}/assets/cover.jpg`;
+      await storage.put(coverOnlyKey, await makeJpeg(900, 300), 'image/jpeg');
+      await prisma.album_assets.create({
+        data: {
+          albumId: coverOnly.id,
+          kind: 'cover',
+          locale: null,
+          objectKey: coverOnlyKey,
+          state: 'effective',
+        },
+      });
     });
 
     it('locale=en → 200 translation=en 内容且 resolvedLocale=en；categories 同语言解析且按 sortOrder 升序', async () => {
@@ -446,6 +465,16 @@ describe('public (e2e)', () => {
       expect(without.body.banner).toBeNull();
     });
 
+    it('banner 回退 cover（宣传图/封面共用：仅 cover 相册 → banner=cover 对象）', async () => {
+      const res = await getPublic(coverOnlyToken);
+      expect(res.status).toBe(200);
+      const banner = res.body.banner as { url: string; expiresAt: string };
+      expect(banner).not.toBeNull();
+      const fetched = await fetch(banner.url);
+      expect(fetched.status).toBe(200);
+      expect(fetched.headers.get('content-type')).toBe('image/jpeg');
+    });
+
     it('viewCount P1a 占位 null；startAt/endAt ISO + timezone 返回', async () => {
       const res = await getPublic(mainToken);
       expect(res.status).toBe(200);
diff --git a/services/api/test/ui01-contracts.e2e-spec.ts b/services/api/test/ui01-contracts.e2e-spec.ts
index 40b6c71..13ad83c 100644
--- a/services/api/test/ui01-contracts.e2e-spec.ts
+++ b/services/api/test/ui01-contracts.e2e-spec.ts
@@ -624,4 +624,45 @@ describe('UI-01 契约扩展：cover / preview / scope=own (e2e)', () => {
       },
     });
   });
+
+  it('cover 回退 banner（宣传图/封面共用：仅 banner 相册 → cover=banner 对象）', async () => {
+    // 直种仅 banner 相册（复用本文件资产直种模式）。
+    const album = await prisma.albums.create({
+      data: {
+        publicToken: makePublicToken(),
+        ownerId: 'u-ui01-coverfb',
+        startAt: new Date('2026-10-03T02:00:00.000Z'),
+        endAt: new Date('2026-10-03T12:00:00.000Z'),
+        defaultLocale: 'zh-CN',
+      },
+    });
+    await prisma.album_translations.create({
+      data: { albumId: album.id, locale: 'zh-CN', title: '仅宣传图相册' },
+    });
+    const key = `photo-live/dev/albums/${album.id}/assets/u01assetbannerfb00000000.jpg`;
+    await putObject(key, Buffer.from([0x51, 0x52, 0x53]));
+    await prisma.album_assets.create({
+      data: {
+        id: 'u01assetbannerfb00000000',
+        albumId: album.id,
+        kind: 'banner',
+        locale: null,
+        objectKey: key,
+        state: 'effective',
+        expectedBytes: 3,
+        contentType: 'image/jpeg',
+      },
+    });
+
+    const res = await listAlbums(adminToken);
+    expect(res.status).toBe(200);
+    const item = (res.body.items as Array<{ id: string; cover: { url: string } | null }>).find(
+      (row) => row.id === album.id,
+    );
+    expect(item).toBeDefined();
+    expect(item?.cover).not.toBeNull();
+    const fetched = await fetch(item!.cover!.url);
+    expect(fetched.status).toBe(200);
+    expect(Buffer.from(await fetched.arrayBuffer()).length).toBe(3);
+  });
 });