diff --git a/康康/Features/Diary/DiaryQuickSheet.swift b/康康/Features/Diary/DiaryQuickSheet.swift
index 462807a..1e05ded 100644
--- a/康康/Features/Diary/DiaryQuickSheet.swift
+++ b/康康/Features/Diary/DiaryQuickSheet.swift
@@ -53,7 +53,10 @@ struct DiaryQuickSheet: View {
     @State private var voiceDeniedAlert = false
     @State private var voiceFlowTask: Task<Void, Never>?
     @State private var recordingWatchdog: Task<Void, Never>?
-    private let dictation = SpeechDictationService()
+    /// 必须 @State:struct View 重建(键盘收起/detent 变化都会触发)时普通 let 会换成
+    /// 全新实例,导致 stop() 落在没在录音的新服务上返回空串(「没听清」假错误),
+    /// 且真正在录音的老实例关不掉、麦克风悬挂。@State 保证视图身份期内实例唯一。
+    @State private var dictation = SpeechDictationService()
 
     private var hasContent: Bool {
         !content.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
@@ -590,8 +593,13 @@ struct DiaryQuickSheet: View {
         guard voicePhase == .recording else { return }
         recordingWatchdog?.cancel()
         voiceFlowTask = Task { @MainActor in
-            let transcript = (await dictation.stop())
+            // 防御兜底:服务返回空(极端情况下实例丢失/最终结果丢失)时,
+            // 用 @State 里的实时字幕——那就是用户亲眼看到的已识别文字。
+            var transcript = (await dictation.stop())
                 .trimmingCharacters(in: .whitespacesAndNewlines)
+            if transcript.isEmpty {
+                transcript = liveTranscript.trimmingCharacters(in: .whitespacesAndNewlines)
+            }
             liveTranscript = transcript
             guard !transcript.isEmpty else {
                 withAnimation(.snappy(duration: 0.2)) { voicePhase = .idle }