diff --git a/suixinkan.xcodeproj/project.pbxproj b/suixinkan.xcodeproj/project.pbxproj
index 45a585d..f20a244 100644
--- a/suixinkan.xcodeproj/project.pbxproj
+++ b/suixinkan.xcodeproj/project.pbxproj
@@ -64,15 +64,11 @@
 		};
 		A00000022FE9000000000002 /* suixinkanTests */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
-			exceptions = (
-			);
 			path = suixinkanTests;
 			sourceTree = "<group>";
 		};
 		B00000022FEF000000000002 /* suixinkanUITests */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
-			exceptions = (
-			);
 			path = suixinkanUITests;
 			sourceTree = "<group>";
 		};
@@ -328,10 +324,14 @@
 			inputFileListPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-suixinkan/Pods-suixinkan-resources-${CONFIGURATION}-input-files.xcfilelist",
 			);
+			inputPaths = (
+			);
 			name = "[CP] Copy Pods Resources";
 			outputFileListPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-suixinkan/Pods-suixinkan-resources-${CONFIGURATION}-output-files.xcfilelist",
 			);
+			outputPaths = (
+			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
 			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-suixinkan/Pods-suixinkan-resources.sh\"\n";
diff --git a/suixinkan/Core/CameraTethering/CameraTethering.md b/suixinkan/Core/CameraTethering/CameraTethering.md
index acec950..bcde8fe 100644
--- a/suixinkan/Core/CameraTethering/CameraTethering.md
+++ b/suixinkan/Core/CameraTethering/CameraTethering.md
@@ -12,13 +12,13 @@
 | `SonyCameraService` | Sony 相机实现，封装 PTP 下载与连接状态 |
 | `ImageCaptureDeviceManager` | ImageCaptureCore 设备浏览、会话与 PTP 事件 |
 | `SonyPTPCommands` | Sony SDIO/PTP 命令封装 |
-| `CameraDownloadStorage` | 本地下载目录与文件名消毒 |
+| `CameraDownloadStorage` | 本地下载作用域、目录与文件名消毒 |
 
 ## 业务流程
 
 1. `SonyCameraService.connect()` 启动 USB 设备搜索。
 2. 授权通过后打开 ICC 会话并执行 Sony SDIO 握手。
-3. 拍摄事件触发 PTP 下载，文件写入 `Documents/CameraDownloads/`，持久化路径为相对路径（如 `CameraDownloads/1730_DSC.JPG`）。
+3. 拍摄事件触发 PTP 下载，底层先写入临时目录，再由传输管道按账号与相册移入业务目录。
 4. 通过 `onNewAsset` 回调通知上层有新照片。
 
 ## 依赖
diff --git a/suixinkan/Core/CameraTethering/Sony/ImageCaptureDeviceManager.swift b/suixinkan/Core/CameraTethering/Sony/ImageCaptureDeviceManager.swift
index fc3ccc4..dc1df2d 100644
--- a/suixinkan/Core/CameraTethering/Sony/ImageCaptureDeviceManager.swift
+++ b/suixinkan/Core/CameraTethering/Sony/ImageCaptureDeviceManager.swift
@@ -612,7 +612,7 @@ final class ImageCaptureDeviceManager: NSObject {
             lastDownloadedObjectSignature = probeSize > 0 ? signature : "\(result.filename)_\(result.data.count)"
 
             let assetID = "ptp_\(handle)_\(result.filename)_\(result.data.count)"
-            let destination = CameraDownloadStorage.uniqueLocalURL(for: result.filename)
+            let destination = CameraDownloadStorage.uniqueTemporaryURL(for: result.filename)
             do {
                 try result.data.write(to: destination, options: .atomic)
             } catch {
diff --git a/suixinkan/Core/CameraTethering/Sony/SonyCameraService.swift b/suixinkan/Core/CameraTethering/Sony/SonyCameraService.swift
index a2642d3..f7028b0 100644
--- a/suixinkan/Core/CameraTethering/Sony/SonyCameraService.swift
+++ b/suixinkan/Core/CameraTethering/Sony/SonyCameraService.swift
@@ -95,7 +95,7 @@ final class SonyCameraService: CameraServiceProtocol {
             throw CameraServiceError.assetNotFound
         }
 
-        let directory = CameraDownloadStorage.downloadsDirectory
+        let directory = CameraDownloadStorage.temporaryDownloadsDirectory
         return try await deviceManager.download(file: file, to: directory)
     }
 
diff --git a/suixinkan/Core/CameraTethering/Storage/CameraDownloadStorage.swift b/suixinkan/Core/CameraTethering/Storage/CameraDownloadStorage.swift
index e4e18ab..7aa8b64 100644
--- a/suixinkan/Core/CameraTethering/Storage/CameraDownloadStorage.swift
+++ b/suixinkan/Core/CameraTethering/Storage/CameraDownloadStorage.swift
@@ -9,10 +9,30 @@ import Foundation
 import ImageIO
 import UniformTypeIdentifiers
 
-/// 相机下载文件本地存储工具，负责目录创建、相对路径持久化与安全文件名处理。
+/// 相机下载文件本地存储工具，负责按账号和相册隔离目录、相对路径持久化与安全文件名处理。
 enum CameraDownloadStorage {
     static let cameraDownloadsFolderName = "CameraDownloads"
 
+    /// 相机下载文件的业务隔离作用域。
+    struct Scope: Equatable {
+        let accountKey: String
+        let albumID: Int
+
+        /// 初始化账号与相册维度的下载作用域。
+        init(accountKey: String, albumID: Int) {
+            self.accountKey = accountKey
+            self.albumID = albumID
+        }
+
+        var accountDirectoryName: String {
+            CameraDownloadStorage.sanitizePathComponent(accountKey, fallback: "guest")
+        }
+
+        var albumDirectoryName: String {
+            "\(max(albumID, 0))"
+        }
+    }
+
     /// Documents 根目录。
     static var documentsDirectory: URL {
         FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
@@ -25,24 +45,56 @@ enum CameraDownloadStorage {
         return directory
     }
 
-    /// 相机照片列表缩略图目录。
-    static var thumbnailsDirectory: URL {
-        let directory = downloadsDirectory.appendingPathComponent("Thumbnails", isDirectory: true)
+    /// 相机底层下载临时目录，最终业务记录不会持久化这里的路径。
+    static var temporaryDownloadsDirectory: URL {
+        let directory = FileManager.default.temporaryDirectory
+            .appendingPathComponent(cameraDownloadsFolderName, isDirectory: true)
         try? FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
         return directory
     }
 
-    /// 将绝对路径转为相对 Documents 的路径，如 `CameraDownloads/1730_DSC.JPG`。
-    static func relativePath(for url: URL) -> String {
-        let standardizedURL = url.standardizedFileURL
-        let thumbnailsPath = thumbnailsDirectory.standardizedFileURL.path
-        if standardizedURL.path.hasPrefix(thumbnailsPath) {
-            return "\(cameraDownloadsFolderName)/Thumbnails/\(url.lastPathComponent)"
-        }
-        return "\(cameraDownloadsFolderName)/\(url.lastPathComponent)"
+    /// 当前账号与相册的下载根目录。
+    static func scopeDirectory(for scope: Scope) -> URL {
+        let directory = downloadsDirectory
+            .appendingPathComponent(scope.accountDirectoryName, isDirectory: true)
+            .appendingPathComponent(scope.albumDirectoryName, isDirectory: true)
+        try? FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
+        return directory
     }
 
-    /// 将持久化的相对或旧版绝对路径解析为当前沙盒内的文件 URL。
+    /// 当前账号与相册的原图目录。
+    static func originalsDirectory(for scope: Scope) -> URL {
+        let directory = scopeDirectory(for: scope).appendingPathComponent("originals", isDirectory: true)
+        try? FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
+        return directory
+    }
+
+    /// 当前账号与相册的缩略图目录。
+    static func thumbnailsDirectory(for scope: Scope) -> URL {
+        let directory = scopeDirectory(for: scope).appendingPathComponent("thumbnails", isDirectory: true)
+        try? FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
+        return directory
+    }
+
+    /// 将绝对路径转为相对 Documents 的路径，如 `CameraDownloads/user_101/6603/originals/1730_DSC.JPG`。
+    static func relativePath(for url: URL) -> String {
+        let standardizedURL = url.standardizedFileURL
+        let documentsPath = documentsDirectory.standardizedFileURL.path
+        let filePath = standardizedURL.path
+        if filePath == documentsPath {
+            return ""
+        }
+        if filePath.hasPrefix(documentsPath + "/") {
+            return String(filePath.dropFirst(documentsPath.count + 1))
+        }
+        let privateDocumentsPath = "/private" + documentsPath
+        if filePath.hasPrefix(privateDocumentsPath + "/") {
+            return String(filePath.dropFirst(privateDocumentsPath.count + 1))
+        }
+        return filePath
+    }
+
+    /// 将持久化的相对路径、绝对路径或网络地址解析为可访问 URL。
     static func resolveLocalURL(from storedPath: String) -> URL? {
         guard !storedPath.isEmpty else { return nil }
 
@@ -51,56 +103,46 @@ enum CameraDownloadStorage {
         }
 
         if storedPath.hasPrefix("/") {
-            let legacyURL = URL(fileURLWithPath: storedPath)
-            if FileManager.default.fileExists(atPath: legacyURL.path) {
-                return legacyURL
-            }
-            let candidate = downloadsDirectory.appendingPathComponent(legacyURL.lastPathComponent)
-            if FileManager.default.fileExists(atPath: candidate.path) {
-                return candidate
-            }
-            return legacyURL
+            return URL(fileURLWithPath: storedPath)
         }
 
         return documentsDirectory.appendingPathComponent(storedPath)
     }
 
-    /// 将旧版绝对路径迁移为相对路径；若文件已在当前 CameraDownloads 中则更新引用。
-    static func migrateStoredPath(_ storedPath: String) -> String? {
-        guard storedPath.hasPrefix("/") else { return storedPath }
-
-        let legacyURL = URL(fileURLWithPath: storedPath)
-        if FileManager.default.fileExists(atPath: legacyURL.path) {
-            return relativePath(for: legacyURL)
-        }
-
-        let candidate = downloadsDirectory.appendingPathComponent(legacyURL.lastPathComponent)
-        if FileManager.default.fileExists(atPath: candidate.path) {
-            return relativePath(for: candidate)
-        }
-
-        return relativePath(for: legacyURL)
-    }
-
-    /// 判断文件是否位于 CameraDownloads 目录内。
-    static func isInDownloadsDirectory(_ url: URL) -> Bool {
-        let downloadsPath = downloadsDirectory.standardizedFileURL.path
+    /// 判断文件是否位于当前账号与相册的原图目录内。
+    static func isInOriginalsDirectory(_ url: URL, scope: Scope) -> Bool {
+        let originalsPath = originalsDirectory(for: scope).standardizedFileURL.path
         let filePath = url.standardizedFileURL.path
-        return filePath.hasPrefix(downloadsPath) || filePath.hasPrefix("/private" + downloadsPath)
+        return filePath.hasPrefix(originalsPath + "/") || filePath.hasPrefix("/private" + originalsPath + "/")
     }
 
-    /// 生成带时间戳的唯一本地文件 URL，避免文件名冲突。
-    static func uniqueLocalURL(for filename: String) -> URL {
+    /// 生成当前账号与相册内带时间戳的唯一原图 URL，避免文件名冲突。
+    static func uniqueLocalURL(for filename: String, scope: Scope) -> URL {
         let timestamp = Int(Date().timeIntervalSince1970)
         let safeName = sanitizeFilename(filename)
-        return downloadsDirectory.appendingPathComponent("\(timestamp)_\(safeName)")
+        return originalsDirectory(for: scope).appendingPathComponent("\(timestamp)_\(safeName)")
     }
 
-    /// 生成带 asset ID 的唯一缩略图文件 URL。
-    static func uniqueThumbnailURL(for assetID: String) -> URL {
+    /// 生成相机底层临时下载 URL。
+    static func uniqueTemporaryURL(for filename: String) -> URL {
+        let timestamp = Int(Date().timeIntervalSince1970)
+        let safeName = sanitizeFilename(filename)
+        return temporaryDownloadsDirectory.appendingPathComponent("\(timestamp)_\(safeName)")
+    }
+
+    /// 生成当前账号与相册内带 asset ID 的唯一缩略图文件 URL。
+    static func uniqueThumbnailURL(for assetID: String, scope: Scope) -> URL {
         let safeName = sanitizeFilename(assetID)
             .replacingOccurrences(of: ".", with: "_")
-        return thumbnailsDirectory.appendingPathComponent("\(safeName)_thumb.jpg")
+        return thumbnailsDirectory(for: scope).appendingPathComponent("\(safeName)_thumb.jpg")
+    }
+
+    /// 删除当前账号与相册的本地文件目录。
+    static func removeScopeDirectory(for scope: Scope) {
+        let directory = scopeDirectory(for: scope)
+        if FileManager.default.fileExists(atPath: directory.path) {
+            try? FileManager.default.removeItem(at: directory)
+        }
     }
 
     /// 将相机 PTP 文件名转为 iOS 文件系统可安全使用的 ASCII 名称。
@@ -124,6 +166,21 @@ enum CameraDownloadStorage {
         return name
     }
 
+    /// 将账号等动态字符串转为安全目录片段。
+    static func sanitizePathComponent(_ value: String, fallback: String) -> String {
+        let trimmed = value
+            .trimmingCharacters(in: .whitespacesAndNewlines)
+            .replacingOccurrences(of: "/", with: "_")
+            .replacingOccurrences(of: ":", with: "_")
+
+        let ascii = trimmed.unicodeScalars.filter { scalar in
+            scalar.isASCII && (CharacterSet.alphanumerics.contains(scalar) || scalar == "_" || scalar == "-")
+        }
+
+        let component = String(String.UnicodeScalarView(ascii))
+        return component.isEmpty ? fallback : component
+    }
+
     /// 将本地存储路径转为可用于 UI 预览的 file URL 字符串。
     static func previewURLString(from storedPath: String) -> String {
         guard let url = resolveLocalURL(from: storedPath),
@@ -147,7 +204,7 @@ enum CameraThumbnailGenerator {
     private static let maxPixelSize: CGFloat = 160
 
     /// 为本地照片生成列表缩略图，成功时返回相对 Documents 的持久化路径。
-    static func generateThumbnail(for imageURL: URL, assetID: String) async -> String? {
+    static func generateThumbnail(for imageURL: URL, assetID: String, scope: CameraDownloadStorage.Scope) async -> String? {
         await Task.detached(priority: .utility) {
             guard FileManager.default.fileExists(atPath: imageURL.path),
                   let source = CGImageSourceCreateWithURL(imageURL as CFURL, nil) else {
@@ -164,7 +221,7 @@ enum CameraThumbnailGenerator {
                 return nil
             }
 
-            let destination = CameraDownloadStorage.uniqueThumbnailURL(for: assetID)
+            let destination = CameraDownloadStorage.uniqueThumbnailURL(for: assetID, scope: scope)
             if FileManager.default.fileExists(atPath: destination.path) {
                 try? FileManager.default.removeItem(at: destination)
             }
diff --git a/suixinkan/Core/CameraTransfer/CameraTransfer.md b/suixinkan/Core/CameraTransfer/CameraTransfer.md
index 2291ab0..e1638a8 100644
--- a/suixinkan/Core/CameraTransfer/CameraTransfer.md
+++ b/suixinkan/Core/CameraTransfer/CameraTransfer.md
@@ -11,16 +11,19 @@
 | `CameraTransferPipeline` | 监听 `onNewAsset`、管理任务队列与上传 |
 | `CameraTransferTask` | 单条传输任务及状态 |
 | `CameraAssetUploadSink` | 上传协议，由业务模块实现 |
+| `CameraDownloadStorage.Scope` | 账号 + 相册维度的本地文件隔离作用域 |
 
 ## 业务流程
 
 1. 相机服务回调 `onNewAsset`。
-2. Pipeline 下载文件到本地并更新任务状态。
+2. Pipeline 下载文件到当前 scope 的 `originals` 目录并更新任务状态。
 3. 若照片是在开启自动上传时由 `onNewAsset` 新发现，加入自动上传资格队列并调用 `CameraAssetUploadSink.upload`。
 4. 上传成功后任务状态变为 `uploaded`。
 
 `syncExistingPhotos()` 仅同步相机历史照片到本地任务列表，不授予自动上传资格。拍后传输模式下已下载的 `downloaded` 任务，切换到边拍边传后仍保持待上传，只有业务层显式调用 `uploadAssets(withIDs:)` 或 `retryUpload(...)` 时才会上传。
 
+本地文件路径按 `Documents/CameraDownloads/<accountKey>/<albumID>/originals/` 存放原图，缩略图由业务层生成到同 scope 的 `thumbnails/`。持久化只记录相对 Documents 的 scoped 路径，不保留未上线旧目录兼容。
+
 ## 与业务层关系
 
 - 旅拍相册通过 `TravelAlbumMaterialUploader` 实现 Sink：OSS 上传 + `upload-material` 登记。
diff --git a/suixinkan/Core/CameraTransfer/CameraTransferPipeline.swift b/suixinkan/Core/CameraTransfer/CameraTransferPipeline.swift
index d50bf73..e8ae30a 100644
--- a/suixinkan/Core/CameraTransfer/CameraTransferPipeline.swift
+++ b/suixinkan/Core/CameraTransfer/CameraTransferPipeline.swift
@@ -16,6 +16,7 @@ final class CameraTransferPipeline {
     private let cameraService: any CameraServiceProtocol
     private var uploadSink: (any CameraAssetUploadSink)?
     private var uploadEnabled = true
+    private var downloadScope = CameraDownloadStorage.Scope(accountKey: "unscoped", albumID: 0)
     private var activeUploadAssetIDs: Set<String> = []
     private var autoUploadEligibleAssetIDs: Set<String> = []
     private var pendingDeferredNotifyTask: Task<Void, Never>?
@@ -36,10 +37,17 @@ final class CameraTransferPipeline {
         }
     }
 
-    /// 配置上传 Sink 与是否自动上传。
-    func configure(uploadSink: (any CameraAssetUploadSink)?, uploadEnabled: Bool) {
+    /// 配置上传 Sink、自动上传开关与可选下载作用域。
+    func configure(
+        uploadSink: (any CameraAssetUploadSink)?,
+        uploadEnabled: Bool,
+        downloadScope: CameraDownloadStorage.Scope? = nil
+    ) {
         self.uploadSink = uploadSink
         self.uploadEnabled = uploadEnabled
+        if let downloadScope {
+            self.downloadScope = downloadScope
+        }
     }
 
     /// 启动相机连接。
@@ -243,10 +251,10 @@ final class CameraTransferPipeline {
             let localURL = try await cameraService.downloadAsset(resolvedAsset)
             let destination: URL
 
-            if CameraDownloadStorage.isInDownloadsDirectory(localURL) {
+            if CameraDownloadStorage.isInOriginalsDirectory(localURL, scope: downloadScope) {
                 destination = localURL
             } else {
-                destination = CameraDownloadStorage.uniqueLocalURL(for: resolvedAsset.filename)
+                destination = CameraDownloadStorage.uniqueLocalURL(for: resolvedAsset.filename, scope: downloadScope)
                 if FileManager.default.fileExists(atPath: destination.path) {
                     try FileManager.default.removeItem(at: destination)
                 }
diff --git a/suixinkan/Core/CameraTransfer/CameraTransferTask.swift b/suixinkan/Core/CameraTransfer/CameraTransferTask.swift
index 3bd0c82..2d576bb 100644
--- a/suixinkan/Core/CameraTransfer/CameraTransferTask.swift
+++ b/suixinkan/Core/CameraTransfer/CameraTransferTask.swift
@@ -76,7 +76,7 @@ struct CameraTransferTask: Identifiable, Equatable, Codable {
         return formatter
     }()
 
-    /// 本地文件 URL，支持相对路径与旧版绝对路径。
+    /// 本地文件 URL，支持相对 Documents 的 scoped 路径与绝对路径。
     var localURL: URL? {
         guard let localPath, !localPath.isEmpty else { return nil }
         return CameraDownloadStorage.resolveLocalURL(from: localPath)
diff --git a/suixinkan/Features/TravelAlbum/Services/WiredTransferPhotoStore.swift b/suixinkan/Features/TravelAlbum/Services/WiredTransferPhotoStore.swift
index e9c9d5b..9a61a2c 100644
--- a/suixinkan/Features/TravelAlbum/Services/WiredTransferPhotoStore.swift
+++ b/suixinkan/Features/TravelAlbum/Services/WiredTransferPhotoStore.swift
@@ -92,9 +92,7 @@ final class WiredTransferPhotoStore {
         }
 
         let normalizedRecords = filteredRecords.map { $0.normalizeInterruptedTransfer() }
-        let migratedRecords = normalizeStoredPaths(normalizedRecords, albumID: albumID)
-
-        return migratedRecords
+        return normalizedRecords
             .filter(\.isDisplayable)
             .sorted { $0.capturedAt > $1.capturedAt }
             .also { items in
@@ -102,27 +100,6 @@ final class WiredTransferPhotoStore {
             }
     }
 
-    /// 将旧版绝对路径迁移为相对路径并回写持久化。
-    private func normalizeStoredPaths(
-        _ records: [WiredTransferPhotoRecord],
-        albumID: Int
-    ) -> [WiredTransferPhotoRecord] {
-        var migrated = records
-        var needsPersist = false
-
-        for index in migrated.indices {
-            guard let normalized = migrated[index].withNormalizedStoredPaths(),
-                  normalized != migrated[index] else { continue }
-            migrated[index] = normalized
-            needsPersist = true
-        }
-
-        if needsPersist {
-            save(albumID: albumID, records: migrated)
-        }
-        return migrated
-    }
-
     /// 保存相册传图记录。
     func save(albumID: Int, records: [WiredTransferPhotoRecord]) {
         guard albumID > 0 else { return }
@@ -173,12 +150,18 @@ final class WiredTransferPhotoStore {
 
         guard let data = defaults.data(forKey: storageKey(albumID)),
               let records = try? JSONDecoder().decode([WiredTransferPhotoRecord].self, from: data)
-        else { return [] }
+        else {
+            CameraDownloadStorage.removeScopeDirectory(for: downloadScope(albumID: albumID))
+            defaults.removeObject(forKey: storageKey(albumID))
+            defaults.removeObject(forKey: deletedKey(albumID))
+            return []
+        }
 
         let userRecords = records.filter { $0.userId == userID }
         userRecords.forEach { deleteRecordFiles($0) }
+        CameraDownloadStorage.removeScopeDirectory(for: downloadScope(albumID: albumID))
 
-        var bindings = loadBindings().filter { $0.albumID != albumID }
+        let bindings = loadBindings().filter { $0.albumID != albumID }
         saveBindings(bindings)
 
         defaults.removeObject(forKey: storageKey(albumID))
@@ -216,6 +199,10 @@ final class WiredTransferPhotoStore {
         "\(accountPrefixProvider())\(Self.transferModeKeySuffix)"
     }
 
+    private func downloadScope(albumID: Int) -> CameraDownloadStorage.Scope {
+        CameraDownloadStorage.Scope(accountKey: accountPrefixProvider(), albumID: albumID)
+    }
+
     private struct PhotoAlbumBinding: Codable {
         let photoID: String
         let albumID: Int
@@ -249,33 +236,6 @@ private extension WiredTransferPhotoRecord {
         return false
     }
 
-    /// 将 localPath/thumbnailPath 中的旧版绝对路径迁移为相对路径。
-    func withNormalizedStoredPaths() -> WiredTransferPhotoRecord? {
-        let migratedLocalPath = localPath.isEmpty ? localPath : (CameraDownloadStorage.migrateStoredPath(localPath) ?? localPath)
-        let migratedThumbnailPath = thumbnailPath.isEmpty
-            ? thumbnailPath
-            : (CameraDownloadStorage.migrateStoredPath(thumbnailPath) ?? thumbnailPath)
-
-        guard migratedLocalPath != localPath || migratedThumbnailPath != thumbnailPath else { return nil }
-
-        return WiredTransferPhotoRecord(
-            id: id,
-            sourceId: sourceId,
-            fileName: fileName,
-            localPath: migratedLocalPath,
-            thumbnailPath: migratedThumbnailPath,
-            capturedAt: capturedAt,
-            fileSizeBytes: fileSizeBytes,
-            status: status,
-            progress: progress,
-            errorMessage: errorMessage,
-            albumId: albumId,
-            userId: userId,
-            remoteURL: remoteURL,
-            updatedAt: updatedAt
-        )
-    }
-
     func normalizeInterruptedTransfer() -> WiredTransferPhotoRecord {
         guard status == WiredTransferUploadStatus.transferring.rawValue
             || status == WiredTransferUploadStatus.uploading.rawValue
diff --git a/suixinkan/Features/TravelAlbum/TravelAlbum.md b/suixinkan/Features/TravelAlbum/TravelAlbum.md
index 4410e3d..c591d4c 100644
--- a/suixinkan/Features/TravelAlbum/TravelAlbum.md
+++ b/suixinkan/Features/TravelAlbum/TravelAlbum.md
@@ -72,14 +72,14 @@ SpecifyUploadBottomSheet         # 指定上传选项弹层
 2. 进入有线传图：Sony 相机 PTP 下载（`Core/CameraTethering`）
 3. OSS 上传：复用 `OSSUploadService.uploadAlbumFile`
 4. 素材登记：`POST .../travel-album/upload-material`
-5. 本地照片路径以相对 Documents 的路径持久化（如 `CameraDownloads/xxx.JPG`），加载时自动迁移旧版绝对路径
+5. 本地照片路径以账号 + 相册 scoped 目录持久化（如 `CameraDownloads/<accountKey>/<albumID>/originals/xxx.JPG`），该功能未上线，不兼容旧版全局目录记录
 
 ## 有线传图性能策略
 
-- 本地下载原图只用于上传与大图预览；列表缩略图在后台下采样生成到 `CameraDownloads/Thumbnails/`，由 Kingfisher 统一加载与缓存。
+- 本地下载原图只用于上传与大图预览，按 `accountCachePrefix + albumId` 写入 `CameraDownloads/<accountKey>/<albumID>/originals/`；列表缩略图在后台下采样生成到同 scope 的 `thumbnails/`，由 Kingfisher 统一加载与缓存。
 - 连拍上传进度采用节流通知和任务签名去重，下载/上传关键状态立即刷新，普通进度合并后再更新 UI；边拍边传、指定上传和勾选上传最多 3 张照片并发上传，避免滚动时高频触发整页重绘或网络资源被打满。
 - `WiredCameraTransferViewModel` 缓存当前 Tab、时间侧栏和 30 分钟分组；新增/删除/切换 Tab 才重建分组，单张进度变化只替换对应行数据。
-- 本地记录以相册和用户维度持久化，状态终态、路径变化立即保存，普通进度按步长或时间间隔降频保存。
+- 本地记录和物理文件都以账号上下文和相册维度隔离，状态终态、路径变化立即保存，普通进度按步长或时间间隔降频保存；删除相册会清理当前账号当前相册的 scoped 文件目录，不影响同手机号下其他账号或其他相册。
 
 ## 解耦关系
 
diff --git a/suixinkan/Features/TravelAlbum/ViewModels/TravelAlbumViewModels.swift b/suixinkan/Features/TravelAlbum/ViewModels/TravelAlbumViewModels.swift
index a8fd0ec..ff0af56 100644
--- a/suixinkan/Features/TravelAlbum/ViewModels/TravelAlbumViewModels.swift
+++ b/suixinkan/Features/TravelAlbum/ViewModels/TravelAlbumViewModels.swift
@@ -443,6 +443,7 @@ final class WiredCameraTransferViewModel: ObservableObject {
     private let pipeline: CameraTransferPipeline
     private var photoStore: WiredTransferPhotoStore?
     private var userIDProvider: (() -> String)?
+    private var downloadScope: CameraDownloadStorage.Scope?
     private var sessionNewPhotoIDs: Set<String> = []
     private var persistedRecordsByID: [String: WiredTransferPhotoRecord] = [:]
     private var lastAppliedPipelineSignatures: [String: PipelineTaskSignature] = [:]
@@ -477,9 +478,16 @@ final class WiredCameraTransferViewModel: ObservableObject {
         scenicID: Int,
         accountContext: AccountContext
     ) async {
+        let accountCachePrefix = accountContext.accountCachePrefix ?? "guest_"
+        let currentDownloadScope = CameraDownloadStorage.Scope(
+            accountKey: accountCachePrefix,
+            albumID: context.albumId
+        )
+        downloadScope = currentDownloadScope
+
         if photoStore == nil {
             photoStore = WiredTransferPhotoStore(
-                accountPrefixProvider: { accountContext.accountCachePrefix ?? "guest_" },
+                accountPrefixProvider: { accountCachePrefix },
                 userIDProvider: { accountContext.profile?.userId ?? "" }
             )
             userIDProvider = { accountContext.profile?.userId ?? "" }
@@ -494,7 +502,7 @@ final class WiredCameraTransferViewModel: ObservableObject {
             scenicID: scenicID
         )
         let autoUpload = transferModeOption == Self.modeLiveCapture
-        pipeline.configure(uploadSink: uploader, uploadEnabled: autoUpload)
+        pipeline.configure(uploadSink: uploader, uploadEnabled: autoUpload, downloadScope: currentDownloadScope)
         refreshDeviceStorageInfo()
         loadPersistedPhotos()
         await pipeline.connect()
@@ -555,7 +563,7 @@ final class WiredCameraTransferViewModel: ObservableObject {
             albumID: context.albumId,
             scenicID: scenicID
         )
-        pipeline.configure(uploadSink: uploader, uploadEnabled: autoUpload)
+        pipeline.configure(uploadSink: uploader, uploadEnabled: autoUpload, downloadScope: downloadScope)
     }
 
     /// 清除错误提示。
@@ -784,7 +792,7 @@ final class WiredCameraTransferViewModel: ObservableObject {
             albumID: context.albumId,
             scenicID: scenicID
         )
-        pipeline.configure(uploadSink: uploader, uploadEnabled: true)
+        pipeline.configure(uploadSink: uploader, uploadEnabled: true, downloadScope: downloadScope)
     }
 
     private func persistedRecord(for photoID: String) -> WiredTransferPhotoRecord? {
@@ -979,9 +987,14 @@ final class WiredCameraTransferViewModel: ObservableObject {
             )
             var thumbnailPath = existingRecord?.thumbnailPath ?? ""
             if thumbnailPath.isEmpty,
+               let downloadScope,
                let localURL,
                status != .transferring,
-               let generatedPath = await CameraThumbnailGenerator.generateThumbnail(for: localURL, assetID: task.assetID) {
+               let generatedPath = await CameraThumbnailGenerator.generateThumbnail(
+                   for: localURL,
+                   assetID: task.assetID,
+                   scope: downloadScope
+               ) {
                 thumbnailPath = generatedPath
             }
             let thumbnailURL = thumbnailURLString(thumbnailPath: thumbnailPath, remoteURL: task.remoteURL ?? existingRecord?.remoteURL ?? "")
diff --git a/suixinkanTests/CameraTethering/CameraDownloadStorageTests.swift b/suixinkanTests/CameraTethering/CameraDownloadStorageTests.swift
index b62f484..e7c984b 100644
--- a/suixinkanTests/CameraTethering/CameraDownloadStorageTests.swift
+++ b/suixinkanTests/CameraTethering/CameraDownloadStorageTests.swift
@@ -8,36 +8,73 @@ import XCTest
 
 /// CameraDownloadStorage 相对路径持久化测试。
 final class CameraDownloadStorageTests: XCTestCase {
-    /// 测试相对路径前缀。
-    func testRelativePathUsesCameraDownloadsPrefix() {
-        let fileURL = CameraDownloadStorage.downloadsDirectory.appendingPathComponent("1730_test.JPG")
-        XCTAssertEqual(CameraDownloadStorage.relativePath(for: fileURL), "CameraDownloads/1730_test.JPG")
+    /// 测试 scoped 原图相对路径前缀。
+    func testRelativePathUsesScopedOriginalsPrefix() {
+        let scope = CameraDownloadStorage.Scope(accountKey: "user_101", albumID: 6603)
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
+
+        let fileURL = CameraDownloadStorage.originalsDirectory(for: scope).appendingPathComponent("1730_test.JPG")
+        XCTAssertEqual(
+            CameraDownloadStorage.relativePath(for: fileURL),
+            "CameraDownloads/user_101/6603/originals/1730_test.JPG"
+        )
     }
 
     /// 测试相对路径解析。
     func testResolveLocalURLFromRelativePath() {
-        let stored = "CameraDownloads/1730_test.JPG"
+        let stored = "CameraDownloads/user_101/6603/originals/1730_test.JPG"
         let resolved = CameraDownloadStorage.resolveLocalURL(from: stored)
         let expected = CameraDownloadStorage.documentsDirectory.appendingPathComponent(stored)
         XCTAssertEqual(resolved, expected)
     }
 
-    /// 测试旧版绝对路径迁移。
-    func testMigrateStoredPathFromLegacyAbsolutePath() throws {
-        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "legacy.jpg")
-        try Data("jpeg".utf8).write(to: fileURL)
-        defer { try? FileManager.default.removeItem(at: fileURL) }
+    /// 测试账号或相册不同不会生成相同目录。
+    func testScopedDirectoriesDoNotCollideAcrossAccountOrAlbum() {
+        let accountScope = CameraDownloadStorage.Scope(accountKey: "user_101", albumID: 6603)
+        let otherAccountScope = CameraDownloadStorage.Scope(accountKey: "user_102", albumID: 6603)
+        let otherAlbumScope = CameraDownloadStorage.Scope(accountKey: "user_101", albumID: 6604)
+        defer {
+            CameraDownloadStorage.removeScopeDirectory(for: accountScope)
+            CameraDownloadStorage.removeScopeDirectory(for: otherAccountScope)
+            CameraDownloadStorage.removeScopeDirectory(for: otherAlbumScope)
+        }
 
-        let migrated = CameraDownloadStorage.migrateStoredPath(fileURL.path)
-        XCTAssertEqual(migrated, "CameraDownloads/\(fileURL.lastPathComponent)")
-        XCTAssertEqual(CameraDownloadStorage.resolveLocalURL(from: migrated ?? "")?.path, fileURL.path)
+        XCTAssertNotEqual(
+            CameraDownloadStorage.originalsDirectory(for: accountScope).path,
+            CameraDownloadStorage.originalsDirectory(for: otherAccountScope).path
+        )
+        XCTAssertNotEqual(
+            CameraDownloadStorage.originalsDirectory(for: accountScope).path,
+            CameraDownloadStorage.originalsDirectory(for: otherAlbumScope).path
+        )
+    }
+
+    /// 测试 scoped 目录清理只影响目标相册。
+    func testRemoveScopeDirectoryOnlyDeletesTargetScope() throws {
+        let scope = CameraDownloadStorage.Scope(accountKey: "user_101", albumID: 6603)
+        let otherScope = CameraDownloadStorage.Scope(accountKey: "user_101", albumID: 6604)
+        defer {
+            CameraDownloadStorage.removeScopeDirectory(for: scope)
+            CameraDownloadStorage.removeScopeDirectory(for: otherScope)
+        }
+
+        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "target.jpg", scope: scope)
+        let otherFileURL = CameraDownloadStorage.uniqueLocalURL(for: "other.jpg", scope: otherScope)
+        try Data("target".utf8).write(to: fileURL)
+        try Data("other".utf8).write(to: otherFileURL)
+
+        CameraDownloadStorage.removeScopeDirectory(for: scope)
+
+        XCTAssertFalse(FileManager.default.fileExists(atPath: fileURL.path))
+        XCTAssertTrue(FileManager.default.fileExists(atPath: otherFileURL.path))
     }
 
     /// 测试预览 URL 字符串生成。
     func testPreviewURLStringFromRelativePath() throws {
-        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "preview.jpg")
+        let scope = CameraDownloadStorage.Scope(accountKey: "user_101", albumID: 6603)
+        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "preview.jpg", scope: scope)
         try Data("jpeg".utf8).write(to: fileURL)
-        defer { try? FileManager.default.removeItem(at: fileURL) }
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
 
         let stored = CameraDownloadStorage.relativePath(for: fileURL)
         let preview = CameraDownloadStorage.previewURLString(from: stored)
diff --git a/suixinkanTests/CameraTransfer/CameraTransferPipelineTests.swift b/suixinkanTests/CameraTransfer/CameraTransferPipelineTests.swift
index 2786fbe..3c72f4f 100644
--- a/suixinkanTests/CameraTransfer/CameraTransferPipelineTests.swift
+++ b/suixinkanTests/CameraTransfer/CameraTransferPipelineTests.swift
@@ -16,7 +16,9 @@ final class CameraTransferPipelineTests: XCTestCase {
         let camera = MockCameraService()
         let sink = MockUploadSink()
         let pipeline = CameraTransferPipeline(cameraService: camera)
-        pipeline.configure(uploadSink: sink, uploadEnabled: true)
+        let scope = makeScope("new_asset")
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
+        pipeline.configure(uploadSink: sink, uploadEnabled: true, downloadScope: scope)
 
         var latestTasks: [CameraTransferTask] = []
         pipeline.onTasksUpdated = { latestTasks = $0 }
@@ -30,7 +32,10 @@ final class CameraTransferPipelineTests: XCTestCase {
 
         XCTAssertEqual(sink.uploadCount, 1)
         let savedTask = latestTasks.first { $0.assetID == asset.id }
-        XCTAssertEqual(savedTask?.localPath?.hasPrefix("CameraDownloads/"), true)
+        XCTAssertEqual(
+            savedTask?.localPath?.hasPrefix("CameraDownloads/test_account/\(scope.albumID)/originals/"),
+            true
+        )
         XCTAssertEqual(savedTask?.localPath?.hasPrefix("/"), false)
         if let localURL = savedTask?.localURL {
             try? FileManager.default.removeItem(at: localURL)
@@ -43,9 +48,11 @@ final class CameraTransferPipelineTests: XCTestCase {
         let camera = MockCameraService()
         let sink = MockUploadSink()
         let pipeline = CameraTransferPipeline(cameraService: camera)
-        pipeline.configure(uploadSink: sink, uploadEnabled: false)
+        let scope = makeScope("retry")
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
+        pipeline.configure(uploadSink: sink, uploadEnabled: false, downloadScope: scope)
 
-        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "retry_pipeline.JPG")
+        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "retry_pipeline.JPG", scope: scope)
         try Data(repeating: 0xAB, count: 16).write(to: fileURL)
         defer { try? FileManager.default.removeItem(at: fileURL) }
 
@@ -65,7 +72,9 @@ final class CameraTransferPipelineTests: XCTestCase {
         let camera = MockCameraService()
         let sink = MockSlowUploadSink()
         let pipeline = CameraTransferPipeline(cameraService: camera)
-        pipeline.configure(uploadSink: sink, uploadEnabled: true)
+        let scope = makeScope("manual")
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
+        pipeline.configure(uploadSink: sink, uploadEnabled: true, downloadScope: scope)
         camera.listedAssets = (1 ... 6).map { index in
             CameraAsset(id: "manual_\(index)", filename: "MANUAL_\(index).JPG", fileSize: 1024)
         }
@@ -83,7 +92,9 @@ final class CameraTransferPipelineTests: XCTestCase {
         let camera = MockCameraService()
         let sink = MockUploadSink()
         let pipeline = CameraTransferPipeline(cameraService: camera)
-        pipeline.configure(uploadSink: sink, uploadEnabled: false)
+        let scope = makeScope("mode_switch")
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
+        pipeline.configure(uploadSink: sink, uploadEnabled: false, downloadScope: scope)
 
         camera.onNewAsset?(CameraAsset(id: "post_001", filename: "POST_001.JPG", fileSize: 1024))
         try await Task.sleep(nanoseconds: 400_000_000)
@@ -91,7 +102,7 @@ final class CameraTransferPipelineTests: XCTestCase {
         XCTAssertEqual(sink.uploadedFileNames, [])
         XCTAssertEqual(pipeline.task(forAssetID: "post_001")?.status, .downloaded)
 
-        pipeline.configure(uploadSink: sink, uploadEnabled: true)
+        pipeline.configure(uploadSink: sink, uploadEnabled: true, downloadScope: scope)
         camera.onNewAsset?(CameraAsset(id: "live_001", filename: "LIVE_001.JPG", fileSize: 1024))
         try await Task.sleep(nanoseconds: 500_000_000)
 
@@ -105,7 +116,9 @@ final class CameraTransferPipelineTests: XCTestCase {
         let camera = MockCameraService()
         let sink = MockUploadSink()
         let pipeline = CameraTransferPipeline(cameraService: camera)
-        pipeline.configure(uploadSink: sink, uploadEnabled: true)
+        let scope = makeScope("sync_existing")
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
+        pipeline.configure(uploadSink: sink, uploadEnabled: true, downloadScope: scope)
         camera.listedAssets = [
             CameraAsset(id: "history_001", filename: "HISTORY_001.JPG", fileSize: 1024)
         ]
@@ -122,7 +135,9 @@ final class CameraTransferPipelineTests: XCTestCase {
         let camera = MockBurstCameraService()
         let sink = MockSlowUploadSink()
         let pipeline = CameraTransferPipeline(cameraService: camera)
-        pipeline.configure(uploadSink: sink, uploadEnabled: true)
+        let scope = makeScope("burst")
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
+        pipeline.configure(uploadSink: sink, uploadEnabled: true, downloadScope: scope)
 
         for index in 1 ... 10 {
             let filename = "DSC_\(index).JPG"
@@ -149,7 +164,9 @@ final class CameraTransferPipelineTests: XCTestCase {
         let camera = MockCameraService()
         let sink = MockChattyUploadSink()
         let pipeline = CameraTransferPipeline(cameraService: camera)
-        pipeline.configure(uploadSink: sink, uploadEnabled: true)
+        let scope = makeScope("chatty")
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
+        pipeline.configure(uploadSink: sink, uploadEnabled: true, downloadScope: scope)
 
         var updateCount = 0
         pipeline.onTasksUpdated = { _ in updateCount += 1 }
@@ -160,6 +177,13 @@ final class CameraTransferPipelineTests: XCTestCase {
         XCTAssertEqual(pipeline.task(forAssetID: "ptp_chatty")?.status, .uploaded)
         XCTAssertLessThan(updateCount, 18)
     }
+
+    private func makeScope(_ albumName: String) -> CameraDownloadStorage.Scope {
+        let albumID = albumName.unicodeScalars.reduce(0) { partial, scalar in
+            (partial + Int(scalar.value)) % 10_000
+        }
+        return CameraDownloadStorage.Scope(accountKey: "test_account", albumID: albumID)
+    }
 }
 
 @MainActor
diff --git a/suixinkanTests/TravelAlbum/WiredCameraTransferViewModelTests.swift b/suixinkanTests/TravelAlbum/WiredCameraTransferViewModelTests.swift
index 393ae8b..a735eb6 100644
--- a/suixinkanTests/TravelAlbum/WiredCameraTransferViewModelTests.swift
+++ b/suixinkanTests/TravelAlbum/WiredCameraTransferViewModelTests.swift
@@ -173,9 +173,10 @@ final class WiredCameraTransferViewModelTests: XCTestCase {
             ),
         ])
 
-        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "DSC_PROGRESS.JPG")
+        let scope = downloadScope(account: account, albumID: context.albumId)
+        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "DSC_PROGRESS.JPG", scope: scope)
         try Data(repeating: 0xAB, count: 16).write(to: fileURL)
-        defer { try? FileManager.default.removeItem(at: fileURL) }
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
 
         camera.downloadURL = fileURL
         camera.onNewAsset?(CameraAsset(id: "ptp_progress", filename: "DSC_PROGRESS.JPG", fileSize: 16))
@@ -253,9 +254,10 @@ final class WiredCameraTransferViewModelTests: XCTestCase {
         let account = AccountContext()
         account.applyLogin(profile: AccountProfile(userId: "101", displayName: "测试"))
 
-        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "retry_failed.JPG")
+        let scope = downloadScope(account: account, albumID: context.albumId)
+        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "retry_failed.JPG", scope: scope)
         try Data(repeating: 0xCD, count: 32).write(to: fileURL)
-        defer { try? FileManager.default.removeItem(at: fileURL) }
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
 
         let photoID = "persist_failed_001"
         let record = WiredTransferPhotoRecord(
@@ -304,12 +306,13 @@ final class WiredCameraTransferViewModelTests: XCTestCase {
         account.applyLogin(profile: AccountProfile(userId: userID, displayName: "测试"))
 
         let fileURLs = try (1 ... 5).map { index in
-            let url = CameraDownloadStorage.uniqueLocalURL(for: "batch_persist_\(index).JPG")
+            let scope = downloadScope(account: account, albumID: albumID)
+            let url = CameraDownloadStorage.uniqueLocalURL(for: "batch_persist_\(index).JPG", scope: scope)
             try Data(repeating: UInt8(0xA0 + index), count: 32).write(to: url)
             return url
         }
         defer {
-            fileURLs.forEach { try? FileManager.default.removeItem(at: $0) }
+            CameraDownloadStorage.removeScopeDirectory(for: downloadScope(account: account, albumID: albumID))
         }
 
         let records = fileURLs.enumerated().map { offset, url in
@@ -410,18 +413,19 @@ final class WiredCameraTransferViewModelTests: XCTestCase {
             accountContext: account
         )
 
-        let imageURL = CameraDownloadStorage.uniqueLocalURL(for: "thumb_source.JPG")
+        let scope = downloadScope(account: account, albumID: albumID)
+        let imageURL = CameraDownloadStorage.uniqueLocalURL(for: "thumb_source.JPG", scope: scope)
         try makeJPEGData().write(to: imageURL)
-        defer { try? FileManager.default.removeItem(at: imageURL) }
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
 
         camera.downloadURL = imageURL
         camera.onNewAsset?(CameraAsset(id: "thumb_asset_001", filename: "thumb_source.JPG", fileSize: 128))
         try await Task.sleep(nanoseconds: 900_000_000)
 
         let photo = try XCTUnwrap(viewModel.photos.first { $0.id == "thumb_asset_001" })
-        XCTAssertTrue(photo.thumbnailURL.contains("/CameraDownloads/Thumbnails/"))
+        XCTAssertTrue(photo.thumbnailURL.contains("/CameraDownloads/\(scope.accountDirectoryName)/\(albumID)/thumbnails/"))
         XCTAssertTrue(photo.previewURL.contains("/CameraDownloads/"))
-        XCTAssertFalse(photo.previewURL.contains("/Thumbnails/"))
+        XCTAssertFalse(photo.previewURL.contains("/thumbnails/"))
     }
 
     /// 测试旧记录没有缩略图时列表先占位，但仍保留原图预览能力。
@@ -429,9 +433,10 @@ final class WiredCameraTransferViewModelTests: XCTestCase {
         let albumID = 6602
         let account = AccountContext()
         account.applyLogin(profile: AccountProfile(userId: "legacy-user", displayName: "测试"))
-        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "legacy_only.JPG")
+        let scope = downloadScope(account: account, albumID: albumID)
+        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "legacy_only.JPG", scope: scope)
         try makeJPEGData().write(to: fileURL)
-        defer { try? FileManager.default.removeItem(at: fileURL) }
+        defer { CameraDownloadStorage.removeScopeDirectory(for: scope) }
 
         let record = WiredTransferPhotoRecord(
             id: "legacy_photo_001",
@@ -471,6 +476,114 @@ final class WiredCameraTransferViewModelTests: XCTestCase {
         XCTAssertFalse(photo.previewURL.isEmpty)
     }
 
+    /// 测试清空相册时只删除当前账号当前相册的物理目录。
+    func testClearAlbumRemovesOnlyCurrentAlbumScopedDirectory() throws {
+        let userID = "clear-scope-user"
+        let account = AccountContext()
+        account.applyLogin(profile: AccountProfile(userId: userID, displayName: "测试"), accountType: "store")
+        let albumID = 8801
+        let otherAlbumID = 8802
+        let scope = downloadScope(account: account, albumID: albumID)
+        let otherScope = downloadScope(account: account, albumID: otherAlbumID)
+        let scopeDirectoryPath = CameraDownloadStorage.scopeDirectory(for: scope).path
+        let otherScopeDirectoryPath = CameraDownloadStorage.scopeDirectory(for: otherScope).path
+        defer {
+            CameraDownloadStorage.removeScopeDirectory(for: scope)
+            CameraDownloadStorage.removeScopeDirectory(for: otherScope)
+        }
+
+        let fileURL = CameraDownloadStorage.uniqueLocalURL(for: "clear_target.JPG", scope: scope)
+        let otherFileURL = CameraDownloadStorage.uniqueLocalURL(for: "clear_other.JPG", scope: otherScope)
+        try Data(repeating: 0x01, count: 8).write(to: fileURL)
+        try Data(repeating: 0x02, count: 8).write(to: otherFileURL)
+
+        let store = WiredTransferPhotoStore(
+            accountPrefixProvider: { account.accountCachePrefix ?? "guest_" },
+            userIDProvider: { userID }
+        )
+        store.save(albumID: albumID, records: [
+            makePhotoRecord(
+                id: "clear_target",
+                fileName: "clear_target.JPG",
+                localPath: CameraDownloadStorage.relativePath(for: fileURL),
+                albumID: albumID,
+                userID: userID
+            )
+        ])
+        store.save(albumID: otherAlbumID, records: [
+            makePhotoRecord(
+                id: "clear_other",
+                fileName: "clear_other.JPG",
+                localPath: CameraDownloadStorage.relativePath(for: otherFileURL),
+                albumID: otherAlbumID,
+                userID: userID
+            )
+        ])
+
+        let deletedIDs = store.clearAlbum(albumID: albumID)
+
+        XCTAssertEqual(deletedIDs, Set(["clear_target"]))
+        XCTAssertFalse(FileManager.default.fileExists(atPath: fileURL.path))
+        XCTAssertFalse(FileManager.default.fileExists(atPath: scopeDirectoryPath))
+        XCTAssertTrue(FileManager.default.fileExists(atPath: otherFileURL.path))
+        XCTAssertTrue(FileManager.default.fileExists(atPath: otherScopeDirectoryPath))
+    }
+
+    /// 测试同一用户 ID 在不同账号类型下的有线传图记录与物理目录隔离。
+    func testSameUserIDDifferentAccountTypesAreIsolated() throws {
+        let userID = "multi-account-user"
+        let albumID = 8803
+        let storeAccount = AccountContext()
+        storeAccount.applyLogin(profile: AccountProfile(userId: userID, displayName: "门店"), accountType: "store")
+        let photographerAccount = AccountContext()
+        photographerAccount.applyLogin(profile: AccountProfile(userId: userID, displayName: "摄影师"), accountType: "photographer")
+        let storeScope = downloadScope(account: storeAccount, albumID: albumID)
+        let photographerScope = downloadScope(account: photographerAccount, albumID: albumID)
+        defer {
+            CameraDownloadStorage.removeScopeDirectory(for: storeScope)
+            CameraDownloadStorage.removeScopeDirectory(for: photographerScope)
+        }
+
+        let storeURL = CameraDownloadStorage.uniqueLocalURL(for: "store_photo.JPG", scope: storeScope)
+        let photographerURL = CameraDownloadStorage.uniqueLocalURL(for: "photographer_photo.JPG", scope: photographerScope)
+        try Data(repeating: 0x03, count: 8).write(to: storeURL)
+        try Data(repeating: 0x04, count: 8).write(to: photographerURL)
+
+        let store = WiredTransferPhotoStore(
+            accountPrefixProvider: { storeAccount.accountCachePrefix ?? "guest_" },
+            userIDProvider: { userID }
+        )
+        let photographerStore = WiredTransferPhotoStore(
+            accountPrefixProvider: { photographerAccount.accountCachePrefix ?? "guest_" },
+            userIDProvider: { userID }
+        )
+        store.save(albumID: albumID, records: [
+            makePhotoRecord(
+                id: "store_photo",
+                fileName: "store_photo.JPG",
+                localPath: CameraDownloadStorage.relativePath(for: storeURL),
+                albumID: albumID,
+                userID: userID
+            )
+        ])
+        photographerStore.save(albumID: albumID, records: [
+            makePhotoRecord(
+                id: "photographer_photo",
+                fileName: "photographer_photo.JPG",
+                localPath: CameraDownloadStorage.relativePath(for: photographerURL),
+                albumID: albumID,
+                userID: userID
+            )
+        ])
+
+        XCTAssertEqual(store.load(albumID: albumID).map(\.id), ["store_photo"])
+        XCTAssertEqual(photographerStore.load(albumID: albumID).map(\.id), ["photographer_photo"])
+        XCTAssertNotEqual(
+            CameraDownloadStorage.scopeDirectory(for: storeScope).path,
+            CameraDownloadStorage.scopeDirectory(for: photographerScope).path
+        )
+    }
+
     private func makeViewModelWithPendingPhotos() -> WiredCameraTransferViewModel {
         let viewModel = WiredCameraTransferViewModel(
             context: WiredTransferContext(albumId: 1, albumName: "相册", phone: "", orderNumber: ""),
@@ -536,6 +649,10 @@ final class WiredCameraTransferViewModelTests: XCTestCase {
             context.fill(CGRect(x: 0, y: 0, width: 8, height: 8))
         }
     }
+
+    private func downloadScope(account: AccountContext, albumID: Int) -> CameraDownloadStorage.Scope {
+        CameraDownloadStorage.Scope(accountKey: account.accountCachePrefix ?? "guest_", albumID: albumID)
+    }
 }
 
 @MainActor