所有测试页面支持滑动，暗黑模式音标更清晰，结果页隐藏导航栏播放按钮

LearnEnglish/LearnEnglish/SceneDelegate.swift

@@ -20,6 +20,7 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
         navigation.navigationBar.prefersLargeTitles = true
         window.rootViewController = navigation
         window.makeKeyAndVisible()
+        window.backgroundColor = .systemBackground
         self.window = window
     }
 }

LearnEnglish/LearnEnglish/Views/QuizResultView.swift

@@ -93,6 +93,7 @@ final class QuizResultView: UIView {
 
     private func buildLayout() {
         let scrollView = UIScrollView()
+        scrollView.alwaysBounceVertical = true
         addSubview(scrollView)
         scrollView.translatesAutoresizingMaskIntoConstraints = false
         NSLayoutConstraint.activate([

LearnEnglish/LearnEnglish/Views/QuizSetupViewController.swift

@@ -52,6 +52,7 @@ final class QuizSetupViewController: UIViewController {
         contentStack.addArrangedSubview(countControl)
 
         let scrollView = UIScrollView()
+        scrollView.alwaysBounceVertical = true
         scrollView.addSubview(contentStack)
         contentStack.translatesAutoresizingMaskIntoConstraints = false
         NSLayoutConstraint.activate([

LearnEnglish/LearnEnglish/Views/QuizViewController.swift

@@ -140,13 +140,24 @@ final class QuizViewController: UIViewController {
         let mainStack = UIStackView(arrangedSubviews: [headerStack, promptStack, inputStack, resultStack, UIView()])
         mainStack.axis = .vertical
         mainStack.spacing = 24
-        view.addSubview(mainStack)
+
+        let scrollView = UIScrollView()
+        scrollView.alwaysBounceVertical = true
+        view.addSubview(scrollView)
+        scrollView.addSubview(mainStack)
+        scrollView.translatesAutoresizingMaskIntoConstraints = false
         mainStack.translatesAutoresizingMaskIntoConstraints = false
         NSLayoutConstraint.activate([
-            mainStack.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 16),
+            scrollView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
-            mainStack.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
+            scrollView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
-            mainStack.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
+            scrollView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
-            mainStack.bottomAnchor.constraint(lessThanOrEqualTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -16)
+            scrollView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor),
+
+            mainStack.topAnchor.constraint(equalTo: scrollView.contentLayoutGuide.topAnchor, constant: 16),
+            mainStack.leadingAnchor.constraint(equalTo: scrollView.contentLayoutGuide.leadingAnchor, constant: 16),
+            mainStack.trailingAnchor.constraint(equalTo: scrollView.contentLayoutGuide.trailingAnchor, constant: -16),
+            mainStack.bottomAnchor.constraint(equalTo: scrollView.contentLayoutGuide.bottomAnchor, constant: -16),
+            mainStack.widthAnchor.constraint(equalTo: scrollView.frameLayoutGuide.widthAnchor, constant: -32),
         ])
     }
 
@@ -386,6 +397,7 @@ final class QuizViewController: UIViewController {
     }
 
     private func showQuizResult() {
+        navigationItem.rightBarButtonItem = nil
         progressView.setProgress(1, animated: true)
         let resultView = QuizResultView(
             total: questions.count,

LearnEnglish/LearnEnglish/Views/WordCardCell.swift

@@ -29,7 +29,7 @@ final class WordCardCell: UITableViewCell {
 
         wordLabel.font = .preferredFont(forTextStyle: .headline)
         phoneticLabel.font = .preferredFont(forTextStyle: .caption1)
-        phoneticLabel.textColor = .tertiaryLabel
+        phoneticLabel.textColor = .secondaryLabel
         meaningLabel.font = .preferredFont(forTextStyle: .subheadline)
         meaningLabel.textColor = .secondaryLabel
 

LearnEnglish/LearnEnglish/Views/WordDetailViewController.swift

@@ -55,6 +55,7 @@ final class WordDetailViewController: UIViewController {
 
     private func buildLayout() {
         let scrollView = UIScrollView()
+        scrollView.alwaysBounceVertical = true
         view.addSubview(scrollView)
         scrollView.translatesAutoresizingMaskIntoConstraints = false
         NSLayoutConstraint.activate([