diff --git a/PowerBar/AppState.swift b/PowerBar/AppState.swift
index 8b5f787..4902c27 100644
--- a/PowerBar/AppState.swift
+++ b/PowerBar/AppState.swift
@@ -11,20 +11,12 @@ class AppState: ObservableObject {
     // 功能的总开关
     @Published var isFunctionEnabled: Bool = false
     
-    // 用户当前是否空闲
-    @Published var isUserIdle: Bool = false
-    
     // 自动启动设置
     @Published var isLaunchAtLogin: Bool = false
     
     // 内部属性
-    private var monitorTimer: Timer?
     private var caffeinateProcess: Process? // 直接使用Process对象，但简化实现
     
-    // 配置参数
-    private let idleThreshold: TimeInterval = 300 // 5分钟无操作视为空闲
-    private let checkInterval: TimeInterval = 10  // 每10秒检查一次
-    
     // 初始化方法
     init() {
         // 检查并设置初始的自动启动状态
@@ -37,52 +29,11 @@ class AppState: ObservableObject {
     func toggleFunction() {
         isFunctionEnabled.toggle()
         if isFunctionEnabled {
-            // 开启功能，立即开始一轮检查，并设置定时器
-            performCheck()
-            startMonitoringTimer()
+            // 开启功能，直接启动caffeinate，不检查用户活动
+            startCaffeinate()
         } else {
-            // 关闭功能，停止一切
-            stopMonitoringTimer()
+            // 关闭功能，停止caffeinate
             stopCaffeinate()
-            updateUserIdleStatus(false) // 重置状态
-        }
-    }
-    
-    // MARK: - Monitoring Logic
-    
-    private func startMonitoringTimer() {
-        guard monitorTimer == nil else { return }
-        print("开始监控...")
-        // 使用 weak self 避免循环引用
-        monitorTimer = Timer.scheduledTimer(withTimeInterval: checkInterval, repeats: true) { [weak self] _ in
-            self?.performCheck()
-        }
-    }
-
-    private func stopMonitoringTimer() {
-        monitorTimer?.invalidate()
-        monitorTimer = nil
-        print("监控已停止。")
-    }
-
-    private func performCheck() {
-        // 1. 获取系统空闲时间
-        let idleTime = getSystemIdleTime()
-        
-        // 2. 判断是否空闲
-        let isIdleNow = (idleTime >= idleThreshold)
-
-        // 3. 如果用户状态发生了变化，则采取行动
-        if isIdleNow != isUserIdle {
-            updateUserIdleStatus(isIdleNow)
-            
-            if isIdleNow {
-                // 从“活动中”变为“空闲”
-                stopCaffeinate()
-            } else {
-                // 从“空闲”变为“活动中”
-                startCaffeinate()
-            }
         }
     }
 
@@ -155,14 +106,7 @@ class AppState: ObservableObject {
         print("已重置 caffeinate 进程引用")
     }
     
-    // MARK: - UI State Update
-    
-    /// 在主线程更新用户空闲状态
-    private func updateUserIdleStatus(_ isIdle: Bool) {
-        DispatchQueue.main.async {
-            self.isUserIdle = isIdle
-        }
-    }
+
     
     // MARK: - Launch at Login Management
     
@@ -252,7 +196,6 @@ class AppState: ObservableObject {
     
     deinit {
         // 确保 App 退出时清理资源
-        stopMonitoringTimer()
         stopCaffeinate()
     }
 }
diff --git a/PowerBar/PowerBarApp.swift b/PowerBar/PowerBarApp.swift
index 7e319e1..e2c6b26 100644
--- a/PowerBar/PowerBarApp.swift
+++ b/PowerBar/PowerBarApp.swift
@@ -93,18 +93,10 @@ struct MenuContent: View {
                     if appState.isFunctionEnabled {
                         HStack(spacing: 6) {
                             Circle()
-                                .fill(appState.isUserIdle ? Color.orange : Color.green)
+                                .fill(Color.green)
                                 .frame(width: 8, height: 8)
-                                .transition(.scale(scale: 0.5, anchor: .center))
-                            Text(appState.isUserIdle ? "空闲" : "活动中")
+                            Text("保护中")
                                 .font(.body)
-                            
-                            // 附加显示 caffeinate 状态
-                            if !appState.isUserIdle {
-                                Text("(保护中)")
-                                    .font(.caption2)
-                                    .foregroundColor(.secondary)
-                            }
                         }
                     } else {
                         HStack(spacing: 6) {