学习模式自动提交，正确1秒/错误3秒后自动刷新

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

LearnEnglish/LearnEnglish/Views/QuizViewController.swift

@@ -190,6 +190,13 @@ final class QuizViewController: UIViewController {
         if isSpelling {
             spellingHintLabel.text = "\(question.word.word.count) 个字母，补全空缺部分"
             spellingView.configure(blankedWord: question.blankedWord, blankPositions: question.blankPositions)
+            if config.isStudyMode {
+                nextButton.isHidden = true
+                spellingView.onChange = { [weak self] in
+                    guard let self, spellingView.isComplete else { return }
+                    submitSpelling(spellingView.typedWord(), for: question)
+                }
+            } else {
                 spellingView.onChange = { [weak self] in
                     guard let self else { return }
                     nextButton.isEnabled = spellingView.isComplete
@@ -197,6 +204,7 @@ final class QuizViewController: UIViewController {
                 nextButton.configuration?.title = "确认"
                 nextButton.isEnabled = false
                 nextButton.isHidden = false
+            }
             spellingView.activate()
         } else if isDictation {
             dictationView.reset()
@@ -348,16 +356,11 @@ final class QuizViewController: UIViewController {
         resultLabel.isHidden = false
 
         if config.isStudyMode {
-            if correct {
             nextButton.isHidden = true
-                DispatchQueue.main.asyncAfter(deadline: .now() + 0.8) { [weak self] in
+            let delay: TimeInterval = correct ? 1.0 : 3.0
+            DispatchQueue.main.asyncAfter(deadline: .now() + delay) { [weak self] in
                 self?.restart()
             }
-            } else {
-                nextButton.configuration?.title = "继续学习"
-                nextButton.isEnabled = true
-                nextButton.isHidden = false
-            }
         } else {
             nextButton.configuration?.title = currentIndex + 1 < questions.count ? "下一题" : "查看成绩"
             nextButton.isEnabled = true

LearnEnglish/LearnEnglish/Views/WordDetailViewController.swift

@@ -189,7 +189,7 @@ final class WordDetailViewController: UIViewController {
 
     @objc private func startSpelling() {
         Haptics.selection()
-        let config = QuizConfig(mode: .spelling, words: [word])
+        let config = QuizConfig(mode: .spelling, words: [word], isStudyMode: true)
         navigationController?.pushViewController(QuizViewController(config: config), animated: true)
     }