fix: 优化进度调试与答题交互

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/pages/sunzhongshan/internalization.tsx

@@ -152,7 +152,7 @@ const QUIZ_ANCHORS: QuizAnchor[] = [
   },
   {
     id: 'quiz-4',
-    time: 60 * 5 + 40.5,
+    time: 60 * 5 + 42.5,
     title: '题目4',
     prompt: '【多选】新时代青年学习“与时俱进”的智慧能够具体落实为：',
     type: 'multiple',
@@ -182,7 +182,7 @@ const QUIZ_ANCHORS: QuizAnchor[] = [
   },
   {
     id: 'quiz-5',
-    time: 60 * 5 + 40.5,
+    time: 60 * 5 + 42.5,
     title: '题目5',
     prompt: '【多选】新时代的青年要从孙中山先生身上学习哪些精神？',
     type: 'multiple',
@@ -315,7 +315,6 @@ const SunzhongshanInternalization = () => {
                       })
                       const cb = resumeCallback
                       setResumeCallback(null)
-                      triggerPuzzleAnimation(15)
                       cb?.()
                     }}
                   />
@@ -404,7 +403,12 @@ const SunzhongshanInternalization = () => {
                     setActiveSuccess(null)
                     const cb = resumeCallback
                     setResumeCallback(null)
-                    triggerPuzzleAnimation(16)
+                    // quiz-2 完成后掉落碎片 15，最后一个题目（quiz-5）完成后掉落碎片 16
+                    if (item.id === 'quiz-2') {
+                      triggerPuzzleAnimation(15)
+                    } else if (item.id === 'quiz-5') {
+                      triggerPuzzleAnimation(16)
+                    }
                     cb?.()
                   }}
                 />