diff --git a/punchnet/Features/Settings/Views/SettingsAccountView.swift b/punchnet/Features/Settings/Views/SettingsAccountView.swift
index 5d0bd4d..3495e18 100644
--- a/punchnet/Features/Settings/Views/SettingsAccountView.swift
+++ b/punchnet/Features/Settings/Views/SettingsAccountView.swift
@@ -58,98 +58,94 @@ struct SettingsAccountView: View {
 }
 
 // MARK: - 内部视图扩展
-extension SettingsAccountView {
+// 统一的条目容器样式
+private struct AccountRow: View {
+    let icon: String
+    let title: String
+    let subtitle: String
+    var actions: AnyView
     
-    // 统一的条目容器样式
-    struct AccountRow: View {
-        let icon: String
-        let title: String
-        let subtitle: String
-        var actions: AnyView
-        
-        var body: some View {
-            HStack(spacing: 16) {
-                // 模拟 Logo
-                Circle()
-                    .fill(Color.blue.gradient)
-                    .frame(width: 32, height: 32)
-                    .overlay(
-                        Image(systemName: icon)
-                            .foregroundColor(.white)
-                            .font(.system(size: 14))
-                    )
-                
-                VStack(alignment: .leading, spacing: 2) {
-                    Text(title)
-                        .font(.subheadline)
-                        .foregroundColor(.secondary)
-                    
-                    Text(subtitle)
-                        .font(.system(size: 15, weight: .medium, design: .monospaced))
-                        .lineLimit(1)
-                }
-                
-                Spacer()
-                
-                actions
-            }
-            .padding(16)
-        }
-    }
-    
-    struct AccountCreditView: View {
-        @Environment(AppContext.self) var appContext: AppContext
-        @Environment(\.openWindow) var openWindow
-        @Environment(\.dismissWindow) var dismissWindow
-
-        let username: String
-        
-        var body: some View {
-            AccountRow(icon: "person.fill", title: "当前登录账号", subtitle: username, actions: AnyView(
-                HStack(spacing: 12) {
-//                    Button("修改密码") {
-//                        
-//                    }
-//                    .buttonStyle(.link)
-                    
-                    Button("退出登录") {
-                        Task { @MainActor in
-                            try await appContext.logout()
-                        }
-                        self.appContext.appScene = .login(username: username)
-                        self.dismissWindow(id: "settings")
-                        self.openWindow(id: "main")
-                    }
-                    .buttonStyle(.bordered)
-                    .foregroundColor(.red)
-                }
-            ))
+    var body: some View {
+        HStack(spacing: 16) {
+            // 模拟 Logo
+            Circle()
+                .fill(Color.blue.gradient)
+                .frame(width: 32, height: 32)
+                .overlay(
+                    Image(systemName: icon)
+                        .foregroundColor(.white)
+                        .font(.system(size: 14))
+                )
             
+            VStack(alignment: .leading, spacing: 2) {
+                Text(title)
+                    .font(.subheadline)
+                    .foregroundColor(.secondary)
+                
+                Text(subtitle)
+                    .font(.system(size: 15, weight: .medium, design: .monospaced))
+                    .lineLimit(1)
+            }
+            
+            Spacer()
+            
+            actions
         }
+        .padding(16)
     }
-    
-    struct TokenCreditView: View {
-        @Environment(AppContext.self) var appContext: AppContext
-        @Environment(\.openWindow) var openWindow
-        @Environment(\.dismissWindow) var dismissWindow
+}
 
-        let token: String
-        
-        var body: some View {
-            AccountRow(icon: "key.horizontal.fill", title: "Token 登录", subtitle: token, actions: AnyView(
+private struct AccountCreditView: View {
+    @Environment(AppContext.self) var appContext: AppContext
+    @Environment(\.openWindow) var openWindow
+    @Environment(\.dismissWindow) var dismissWindow
+    
+    let username: String
+    
+    var body: some View {
+        AccountRow(icon: "person.fill", title: "当前登录账号", subtitle: username, actions: AnyView(
+            HStack(spacing: 12) {
+                //                    Button("修改密码") {
+                //
+                //                    }
+                //                    .buttonStyle(.link)
+                
                 Button("退出登录") {
                     Task { @MainActor in
                         try await appContext.logout()
                     }
-                    
-                    self.appContext.appScene = .login(username: nil)
+                    self.appContext.appScene = .login(username: username)
                     self.dismissWindow(id: "settings")
                     self.openWindow(id: "main")
                 }
                 .buttonStyle(.bordered)
                 .foregroundColor(.red)
-            ))
-        }
+            }
+        ))
+        
+    }
+}
+
+private struct TokenCreditView: View {
+    @Environment(AppContext.self) var appContext: AppContext
+    @Environment(\.openWindow) var openWindow
+    @Environment(\.dismissWindow) var dismissWindow
+    
+    let token: String
+    
+    var body: some View {
+        AccountRow(icon: "key.horizontal.fill", title: "Token 登录", subtitle: token, actions: AnyView(
+            Button("退出登录") {
+                Task { @MainActor in
+                    try await appContext.logout()
+                }
+                
+                self.appContext.appScene = .login(username: nil)
+                self.dismissWindow(id: "settings")
+                self.openWindow(id: "main")
+            }
+                .buttonStyle(.bordered)
+                .foregroundColor(.red)
+        ))
     }
-    
 }
diff --git a/punchnet/Features/Settings/Views/SettingsDeviceView.swift b/punchnet/Features/Settings/Views/SettingsDeviceView.swift
index a08ae26..f858fdb 100644
--- a/punchnet/Features/Settings/Views/SettingsDeviceView.swift
+++ b/punchnet/Features/Settings/Views/SettingsDeviceView.swift
@@ -96,7 +96,7 @@ struct SettingsDeviceView: View {
 }
 
 // MARK: - 子组件：设备属性行
-struct DevicePropertyRow<Content: View>: View {
+private struct DevicePropertyRow<Content: View>: View {
     let title: String
     let value: String
     let trailingContent: () -> Content
diff --git a/punchnet/Features/Settings/Views/SettingsNetworkView.swift b/punchnet/Features/Settings/Views/SettingsNetworkView.swift
index 358eeca..1ffb196 100644
--- a/punchnet/Features/Settings/Views/SettingsNetworkView.swift
+++ b/punchnet/Features/Settings/Views/SettingsNetworkView.swift
@@ -133,7 +133,7 @@ struct SettingsNetworkView: View {
     
 }
 
-struct StatusRow: View {
+private struct StatusRow: View {
     let title: String
     let value: String
     let valueColor: Color
diff --git a/punchnet/Features/Settings/Views/SettingsSystemView.swift b/punchnet/Features/Settings/Views/SettingsSystemView.swift
index e7f299f..422e35d 100644
--- a/punchnet/Features/Settings/Views/SettingsSystemView.swift
+++ b/punchnet/Features/Settings/Views/SettingsSystemView.swift
@@ -92,7 +92,7 @@ struct SettingsSystemView: View {
 }
 
 // MARK: - 子组件：开关行
-struct ToggleRow: View {
+private struct ToggleRow: View {
     let icon: String
     let title: String
     @Binding var isOn: Bool
diff --git a/punchnet/Features/Settings/Views/SettingsUserIssueView.swift b/punchnet/Features/Settings/Views/SettingsUserIssueView.swift
index 9dfdc04..2f4bd38 100644
--- a/punchnet/Features/Settings/Views/SettingsUserIssueView.swift
+++ b/punchnet/Features/Settings/Views/SettingsUserIssueView.swift
@@ -122,7 +122,35 @@ struct SettingsUserIssueView: View {
         }
     }
 
-    // MARK: - 提交逻辑
+    // MARK: - 成功弹窗视图
+    private var successPopup: some View {
+        VStack(spacing: 16) {
+            Image(systemName: "checkmark.seal.fill")
+                .font(.system(size: 44))
+                .foregroundStyle(.green.gradient)
+            
+            Text("发送成功")
+                .font(.headline)
+            
+            Text("感谢您的支持！")
+                .font(.subheadline)
+                .foregroundColor(.secondary)
+        }
+        .padding(40)
+        .background(.ultraThinMaterial) // macOS 磨砂质感
+        .cornerRadius(24)
+        .shadow(color: .black.opacity(0.15), radius: 20)
+        .transition(.asymmetric(
+            insertion: .scale(scale: 0.8).combined(with: .opacity),
+            removal: .opacity.combined(with: .scale(scale: 1.1))
+        ))
+    }
+    
+}
+
+// MARK: Actions 提交逻辑
+extension SettingsUserIssueView {
+    
     private func submitFeedback() async {
         withAnimation {
             isSubmitting = true
@@ -156,28 +184,5 @@ struct SettingsUserIssueView: View {
         
         self.isSubmitting = false
     }
-
-    // MARK: - 成功弹窗视图
-    private var successPopup: some View {
-        VStack(spacing: 16) {
-            Image(systemName: "checkmark.seal.fill")
-                .font(.system(size: 44))
-                .foregroundStyle(.green.gradient)
-            
-            Text("发送成功")
-                .font(.headline)
-            
-            Text("感谢您的支持！")
-                .font(.subheadline)
-                .foregroundColor(.secondary)
-        }
-        .padding(40)
-        .background(.ultraThinMaterial) // macOS 磨砂质感
-        .cornerRadius(24)
-        .shadow(color: .black.opacity(0.15), radius: 20)
-        .transition(.asymmetric(
-            insertion: .scale(scale: 0.8).combined(with: .opacity),
-            removal: .opacity.combined(with: .scale(scale: 1.1))
-        ))
-    }
+    
 }
diff --git a/punchnet/Features/Settings/Views/SettingsView.swift b/punchnet/Features/Settings/Views/SettingsView.swift
index 9425494..2298d81 100644
--- a/punchnet/Features/Settings/Views/SettingsView.swift
+++ b/punchnet/Features/Settings/Views/SettingsView.swift
@@ -111,7 +111,7 @@ struct SettingsView: View {
 }
 
 // MARK: - 子组件：侧边栏按钮样式
-struct SidebarItem: View {
+private struct SidebarItem: View {
     let icon: String
     let title: String
     let isSelected: Bool
diff --git a/punchnet/Features/Upgrade/ViewModels/AppUpdateManager.swift b/punchnet/Features/Upgrade/ViewModels/AppUpdateManager.swift
index a161953..8353e01 100644
--- a/punchnet/Features/Upgrade/ViewModels/AppUpdateManager.swift
+++ b/punchnet/Features/Upgrade/ViewModels/AppUpdateManager.swift
@@ -43,7 +43,8 @@ class AppUpdateManager {
     }
 }
 
-struct VersionComparator {
+private struct VersionComparator {
+    
     /// 比较版本号：如果 current < latest 返回 true (需要更新)
     static func isVersion(_ current: String, olderThan latest: String) -> Bool {
         let currentComponents = current.split(separator: ".").map { Int($0) ?? 0 }