剧情+对话完善

Assets/Scripts/UI/SongSelection/SongSelectionUIPage.cs

@@ -1,5 +1,6 @@
 using DG.Tweening;
 using Ichni.RhythmGame;
+using Ichni.Story;
 using Ichni.UI;
 using SLSUtilities.WwiseAssistance;
 using UnityEngine.Events;
@@ -46,8 +47,13 @@ namespace Ichni.Menu
             backButton.onClick.AddListener(() =>
             {
                 FadeOut();
-                MenuManager.instance.chapterSelectionUIPage.FadeIn();
                 SongSelectionManager.instance.StopPreviewSong();
+
+                // 仅当本次选曲由剧情 SongBlock 发起时返回剧情页；普通选曲保持原有的章节选择返回逻辑。
+                if (StoryManager.instance != null && StoryManager.instance.TryReturnFromSongSelection())
+                    StoryManager.instance.storyUIPage.FadeIn();
+                else
+                    MenuManager.instance.chapterSelectionUIPage.FadeIn();
             });
             
             songInfoUI.SetUp();