1

src/services/puzzle-runtime/puzzleLocalRuntime.test.ts

@@ -535,6 +535,45 @@ describe('puzzleLocalRuntime', () => {
     ).toBe('explicit-level');
   });
 
+  test('本地试玩继承关卡 UI 背景和背景音乐资源', () => {
+    const workWithRuntimeAssets: PuzzleWorkSummary = {
+      ...baseWork,
+      levels: [
+        {
+          levelId: 'puzzle-level-1',
+          levelName: '第一关',
+          pictureDescription: '第一关画面',
+          candidates: [],
+          selectedCandidateId: null,
+          coverImageSrc: '/level-1.png',
+          coverAssetId: null,
+          uiBackgroundImageSrc:
+            '/generated-puzzle-assets/session/ui/background.png',
+          backgroundMusic: {
+            taskId: 'audio-task-1',
+            provider: 'vector-engine',
+            assetObjectId: 'asset-audio-1',
+            assetKind: 'puzzle_background_music',
+            audioSrc: '/generated-puzzle-assets/session/audio.mp3',
+            prompt: '雨夜猫街音乐',
+            title: '雨夜猫街',
+            updatedAt: '2026-05-12T00:00:00.000Z',
+          },
+          generationStatus: 'ready',
+        },
+      ],
+    };
+
+    const run = startLocalPuzzleRun(workWithRuntimeAssets);
+
+    expect(run.currentLevel?.uiBackgroundImageSrc).toBe(
+      '/generated-puzzle-assets/session/ui/background.png',
+    );
+    expect(run.currentLevel?.backgroundMusic?.audioSrc).toBe(
+      '/generated-puzzle-assets/session/audio.mp3',
+    );
+  });
+
   test('暂停和冻结时间不会消耗本地倒计时', () => {
     const run = startLocalPuzzleRun(baseWork);
     const pausedRun = setLocalPuzzlePaused(

src/services/puzzle-runtime/puzzleLocalRuntime.ts

@@ -802,6 +802,10 @@ function buildFallbackLocalLevel(
     buildLocalLevelName(currentLevel.levelName, nextLevelIndex);
   const nextCoverImageSrc =
     nextLevel?.coverImageSrc ?? currentLevel.coverImageSrc;
+  const nextUiBackgroundImageSrc =
+    nextLevel?.uiBackgroundImageSrc ?? currentLevel.uiBackgroundImageSrc;
+  const nextBackgroundMusic =
+    nextLevel?.backgroundMusic ?? currentLevel.backgroundMusic;
 
   const nextRun: PuzzleRunSnapshot = {
     ...run,
@@ -830,6 +834,8 @@ function buildFallbackLocalLevel(
       clearedAtMs: null,
       elapsedMs: null,
       coverImageSrc: nextCoverImageSrc,
+      uiBackgroundImageSrc: nextUiBackgroundImageSrc,
+      backgroundMusic: nextBackgroundMusic,
       ...buildLevelTimerFields(nextLevelIndex),
       leaderboardEntries: [],
     },
@@ -854,6 +860,8 @@ export function startLocalPuzzleRun(
   const firstLevel = item.levels?.[currentLevelIndex] ?? null;
   const firstLevelName = firstLevel?.levelName || item.levelName;
   const firstCoverImageSrc = firstLevel?.coverImageSrc ?? item.coverImageSrc;
+  const firstUiBackgroundImageSrc = firstLevel?.uiBackgroundImageSrc ?? null;
+  const firstBackgroundMusic = firstLevel?.backgroundMusic ?? null;
   const nextSameWorkLevel = item.levels?.[currentLevelIndex + 1] ?? null;
   return {
     runId,
@@ -873,6 +881,8 @@ export function startLocalPuzzleRun(
       authorDisplayName: item.authorDisplayName,
       themeTags: item.themeTags,
       coverImageSrc: firstCoverImageSrc,
+      uiBackgroundImageSrc: firstUiBackgroundImageSrc,
+      backgroundMusic: firstBackgroundMusic,
       board: buildInitialBoard(gridSize, runId, item.profileId, 1),
       status: 'playing',
       startedAtMs,