diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index dc4fc9d..1fd602e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -47,11 +47,17 @@
             android:label="@string/app_name"
             android:theme="@style/Theme.StandAPP" />
 
+        <activity
+            android:name=".DeveloperActivity"
+            android:exported="false"
+            android:label="开发者模式"
+            android:theme="@style/Theme.StandAPP" />
+
         <activity
             android:name=".printer.PrintTestActivity"
             android:exported="false"
             android:label="打印测试"
-            android:theme="@style/Theme.AppCompat.Light.DarkActionBar" />
+            android:theme="@style/Theme.StandAPP" />
 
         <activity
             android:name="com.example.kingway.ptt.pttActivity"
diff --git a/app/src/main/java/com/stand/standapp/DeveloperActivity.kt b/app/src/main/java/com/stand/standapp/DeveloperActivity.kt
new file mode 100644
index 0000000..ff44e58
--- /dev/null
+++ b/app/src/main/java/com/stand/standapp/DeveloperActivity.kt
@@ -0,0 +1,60 @@
+package com.stand.standapp
+
+import android.content.Intent
+import android.os.Build
+import android.os.Bundle
+import android.view.View
+import android.widget.ImageView
+import android.widget.LinearLayout
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+
+class DeveloperActivity : AppCompatActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_developer)
+
+        // 左上角退出
+        findViewById<ImageView>(R.id.btn_close).setOnClickListener {
+            finish()
+        }
+
+        // PTT 测试
+        findViewById<LinearLayout>(R.id.item_ptt).setOnClickListener {
+            startActivity(Intent(this, com.example.kingway.ptt.pttActivity::class.java))
+        }
+
+        // 打印测试
+        findViewById<LinearLayout>(R.id.item_printer).setOnClickListener {
+            startActivity(Intent(this, com.stand.standapp.printer.PrintTestActivity::class.java))
+        }
+
+        // 崩溃模拟
+        findViewById<LinearLayout>(R.id.item_crash_test).setOnClickListener {
+            androidx.appcompat.app.AlertDialog.Builder(this)
+                .setTitle("确认崩溃测试？")
+                .setMessage("应用将立即崩溃并尝试记录日志，确定继续吗？")
+                .setPositiveButton("确定") { _, _ ->
+                    throw RuntimeException("这是一次开发者手动触发的模拟崩溃测试")
+                }
+                .setNegativeButton("取消", null)
+                .show()
+        }
+
+        // 加载调试信息
+        loadDebugInfo()
+    }
+
+    private fun loadDebugInfo() {
+        val tvInfo = findViewById<TextView>(R.id.tv_debug_info)
+        val info = StringBuilder()
+        info.append("设备型号: ${Build.MODEL}\n")
+        info.append("系统版本: Android ${Build.VERSION.RELEASE} (SDK ${Build.VERSION.SDK_INT})\n")
+        info.append("架构(ABI): ${Build.SUPPORTED_ABIS.joinToString(", ")}\n")
+        info.append("运行模式: ${if (android.os.Process.is64Bit()) "64位" else "32位兼容模式"}\n")
+        info.append("服务器地址: ${AppConfig.getServerUrl(this)}\n")
+        info.append("串口路径: ${AppConfig.getSerialPort(this)}")
+        
+        tvInfo.text = info.toString()
+    }
+}
diff --git a/app/src/main/java/com/stand/standapp/LoginActivity.kt b/app/src/main/java/com/stand/standapp/LoginActivity.kt
index 4eb8375..4afac80 100644
--- a/app/src/main/java/com/stand/standapp/LoginActivity.kt
+++ b/app/src/main/java/com/stand/standapp/LoginActivity.kt
@@ -1,14 +1,15 @@
 package com.stand.standapp
 
+import android.content.Context
 import android.content.Intent
 import android.os.Bundle
-import timber.log.Timber
 import android.widget.*
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
+import com.stand.standapp.printer.PrinterManager
 import okhttp3.*
-import okhttp3.MediaType.Companion.toMediaType
 import org.json.JSONObject
+import timber.log.Timber
 import java.io.IOException
 
 class LoginActivity : AppCompatActivity() {
@@ -23,9 +24,9 @@ class LoginActivity : AppCompatActivity() {
         val etPassword = findViewById<EditText>(R.id.et_password)
         val cbRemember = findViewById<CheckBox>(R.id.cb_remember)
         val btnLogin = findViewById<Button>(R.id.btn_login)
-        val btnPttExample = findViewById<Button>(R.id.btn_ptt_example)
-        val btnPrinterTest = findViewById<Button>(R.id.btn_printer_test)
+        val btnExit = findViewById<Button>(R.id.btn_exit)
         val ivSettings = findViewById<ImageView>(R.id.iv_settings)
+        val tvCopyright = findViewById<TextView>(R.id.tv_copyright)
 
         // 1. 加载保存的状态和凭据
         val isRemember = AppConfig.isRememberLogin(this)
@@ -54,35 +55,38 @@ class LoginActivity : AppCompatActivity() {
             performLogin(username, password, cbRemember.isChecked)
         }
 
-        // 4. PTT 示例按钮点击事件
-        btnPttExample.setOnClickListener {
-            try {
-                val intent = Intent(this, com.example.kingway.ptt.pttActivity::class.java)
-                startActivity(intent)
-            } catch (e: Exception) {
-                Toast.makeText(this, "打开 PTT 示例失败: ${e.message}", Toast.LENGTH_SHORT).show();
-            }
+        // 4. 退出按钮
+        btnExit.setOnClickListener {
+            finish()
         }
 
-        // 5. 打印测试按钮点击事件
-        btnPrinterTest.setOnClickListener {
-            try {
-                val intent = Intent(this, com.stand.standapp.printer.PrintTestActivity::class.java)
-                startActivity(intent)
-            } catch (e: Exception) {
-                Toast.makeText(this, "打开打印测试失败: ${e.message}", Toast.LENGTH_SHORT).show()
+        // 5. 彩蛋：点击底部版权 10 次进入开发者模式
+        var clickCount = 0
+        var lastClickTime = 0L
+        tvCopyright.setOnClickListener {
+            val currentTime = System.currentTimeMillis()
+            // 连续点击判定间隔为 500ms
+            if (currentTime - lastClickTime < 500) {
+                clickCount++
+            } else {
+                clickCount = 1
+            }
+            lastClickTime = currentTime
+
+            if (clickCount >= 10) {
+                clickCount = 0
+                Toast.makeText(this, "开发者模式已激活", Toast.LENGTH_SHORT).show()
+                startActivity(Intent(this, DeveloperActivity::class.java))
+            } else if (clickCount > 5) {
+                Toast.makeText(this, "再点击 ${10 - clickCount} 次进入调试模式", Toast.LENGTH_SHORT).show()
             }
         }
     }
 
-    /**
-     * 执行真实接口登录
-     */
     private fun performLogin(username: String, password: String, remember: Boolean) {
         val serverUrl = AppConfig.getServerUrl(this)
         val loginUrl = "$serverUrl/api/auth/login"
-        val bearerToken = "eyJraWQiOiJzLXYxIiwidHlwIjoiSldUIiwiYWxnIjoiSFMyNTYifQ.eyJzdWIiOiJhZG1pbiIsInR5cCI6ImFjY2VzcyIsImV4cCI6MTc3NjQwMTU2MSwianRpIjoiMjM0NjdiZGMtNTY0Zi00NmY0LWJhZTgtNzJhZmQ1MzhmYmZhIiwiZmdwIjoiY2FhNzYzOTI4YWRhYWZiYjgzMjE3NjExYmVjYTc3ZjMiLCJraWQiOiJzLXYxIn0.4Zf1eiKcUjGNoFylEzmZ2no1kJY-44CQ8QWmMA_UxvY"
-
+        
         val body = MultipartBody.Builder()
             .setType(MultipartBody.FORM)
             .addFormDataPart("username", username)
@@ -92,7 +96,6 @@ class LoginActivity : AppCompatActivity() {
         val request = Request.Builder()
             .url(loginUrl)
             .post(body)
-            .addHeader("Authorization", "Bearer $bearerToken")
             .build()
 
         val loadingDialog = AlertDialog.Builder(this)
@@ -117,7 +120,6 @@ class LoginActivity : AppCompatActivity() {
                         val json = JSONObject(responseBody ?: "")
                         val code = json.optInt("code", -1)
                         if (code == 0) {
-                            // 登录成功
                             AppConfig.setRememberLogin(this@LoginActivity, remember)
                             if (remember) {
                                 AppConfig.setSavedUsername(this@LoginActivity, username)
@@ -127,12 +129,12 @@ class LoginActivity : AppCompatActivity() {
                                 AppConfig.setSavedPassword(this@LoginActivity, "")
                             }
 
-                             Toast.makeText(this@LoginActivity, "登录成功", Toast.LENGTH_SHORT).show()
-                             
-                             // 初始化打印机 (自动重连)
-                             com.stand.standapp.printer.PrinterManager.init(this@LoginActivity)
-                             
-                             startActivity(Intent(this@LoginActivity, MainActivity::class.java))
+                            Toast.makeText(this@LoginActivity, "登录成功", Toast.LENGTH_SHORT).show()
+                            
+                            // 初始化打印机 (异步)
+                            PrinterManager.init(this@LoginActivity)
+                            
+                            startActivity(Intent(this@LoginActivity, MainActivity::class.java))
                             finish()
                         } else {
                             val msg = json.optString("msg", "登录失败")
@@ -153,7 +155,6 @@ class LoginActivity : AppCompatActivity() {
         val etSerialPort = dialogView.findViewById<EditText>(R.id.et_serial_port)
         val btnReset = dialogView.findViewById<TextView>(R.id.btn_reset)
 
-        // 初始化数据
         etServerUrl.setText(AppConfig.getServerUrl(this))
         etSerialPort.setText(AppConfig.getSerialPort(this))
 
@@ -190,10 +191,9 @@ class LoginActivity : AppCompatActivity() {
 
         dialog.show()
 
-        // 强制设置对话框宽度
         dialog.window?.let { window ->
             val params = window.attributes
-            params.width = (resources.displayMetrics.widthPixels * 0.75).toInt() // 占据屏幕 75% 宽度
+            params.width = (resources.displayMetrics.widthPixels * 0.95).toInt()
             window.attributes = params
         }
     }
@@ -202,10 +202,7 @@ class LoginActivity : AppCompatActivity() {
         AlertDialog.Builder(this)
             .setTitle("提示")
             .setMessage("确定要退出应用吗？")
-            .setPositiveButton("确定") { _, _ -> 
-                @Suppress("DEPRECATION")
-                super.onBackPressed() 
-            }
+            .setPositiveButton("确定") { _, _ -> finish() }
             .setNegativeButton("取消", null)
             .show()
     }
diff --git a/app/src/main/java/com/stand/standapp/utils/LogManager.kt b/app/src/main/java/com/stand/standapp/utils/LogManager.kt
index 6b7fd0e..190d017 100644
--- a/app/src/main/java/com/stand/standapp/utils/LogManager.kt
+++ b/app/src/main/java/com/stand/standapp/utils/LogManager.kt
@@ -24,58 +24,99 @@ object LogManager {
         Timber.plant(Timber.DebugTree())
         
         try {
-            logDir = File(context.getExternalFilesDir(null), "logs")
-            if (logDir?.exists() == false) logDir?.mkdirs()
+            // 1. 路径确定
+            val baseDir = context.getExternalFilesDir(null)
+            logDir = if (baseDir != null) {
+                File(baseDir, "logs")
+            } else {
+                File(context.filesDir, "logs")
+            }
+
+            if (logDir?.exists() == false) {
+                val created = logDir?.mkdirs()
+                android.util.Log.i("LogManager", "Directory created: $created at ${logDir?.absolutePath}")
+            }
             
-            // 立即清理旧日志
-            logDir?.let { cleanOldLogs(it) }
+            // 2. 强行创建一个“自检”日志文件，不使用异步线程池
+            logDir?.let { dir ->
+                val testFile = File(dir, "startup_check.txt")
+                try {
+                    val fos = FileOutputStream(testFile, true)
+                    fos.write("Logging started at ${Date()}\n".toByteArray())
+                    fos.close()
+                    android.util.Log.i("LogManager", "Startup check file written successfully")
+                } catch (e: Exception) {
+                    android.util.Log.e("LogManager", "FAILED to write startup check file", e)
+                }
+            }
+
+            logDir?.let { 
+                cleanOldLogs(it)
+                Timber.plant(FileLoggingTree(it))
+            }
             
-            // 挂载文件日志树
-            logDir?.let { Timber.plant(FileLoggingTree(it)) }
-            
-            // 【核心增强】接管全局异常，确保崩溃信息能写进文件
             setupCrashHandler()
-            
-            Timber.tag("LogManager").i("Logging system initialized and CrashHandler attached")
         } catch (e: Exception) {
-            android.util.Log.e("LogManager", "Init failed", e)
+            android.util.Log.e("LogManager", "Init global failure", e)
         }
     }
 
     private fun setupCrashHandler() {
+        // 1. 捕获所有普通线程、子线程的未捕获异常
         val defaultHandler = Thread.getDefaultUncaughtExceptionHandler()
         Thread.setDefaultUncaughtExceptionHandler { thread, throwable ->
-            // 强制同步写入崩溃日志
-            val timestamp = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault()).format(Date())
-            val crashInfo = "\n\n=== FATAL CRASH ===\n" +
-                    "Time: $timestamp\n" +
-                    "Thread: ${thread.name}\n" +
-                    "Stacktrace:\n${throwable.stackTraceToString()}\n" +
-                    "====================\n\n"
-            
-            logDir?.let { dir ->
-                val logFile = File(dir, SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).format(Date()) + ".log")
+            saveCrashToFile(thread, throwable)
+            defaultHandler?.uncaughtException(thread, throwable) ?: exitProcess(1)
+        }
+
+        // 2. 捕获主线程 (UI 线程) 的所有异常
+        // 这种方式能捕获点击事件、生命周期回调中发生的所有崩溃
+        android.os.Handler(android.os.Looper.getMainLooper()).post {
+            while (true) {
                 try {
-                    FileOutputStream(logFile, true).use { it.write(crashInfo.toByteArray()) }
-                } catch (e: Exception) {
-                    android.util.Log.e("LogManager", "Failed to write crash log", e)
+                    android.os.Looper.loop()
+                } catch (e: Throwable) {
+                    saveCrashToFile(android.os.Looper.getMainLooper().thread, e)
+                    // 如果你希望应用在崩溃后不闪退而是尝试恢复，可以不抛出，但建议这里还是交还给系统处理比较稳妥
+                    // 这里我们为了记录完日志后让系统正常走关闭流程
+                    throw e 
                 }
             }
-
-            // 交还给系统处理（弹出“应用已停止”对话框）
-            defaultHandler?.uncaughtException(thread, throwable) ?: exitProcess(1)
         }
     }
 
-    private fun cleanOldLogs(logDir: File) {
+    private fun saveCrashToFile(thread: Thread, throwable: Throwable) {
+        // 使用同步写入，确保磁盘 IO 优先
+        val timestamp = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault()).format(Date())
+        val crashInfo = "\n\nCRASH_ERROR_REPORT\n" +
+                "Time: $timestamp\n" +
+                "Thread: ${thread.name}\n" +
+                "Cause: ${throwable.cause}\n" +
+                "Message: ${throwable.message}\n" +
+                "Full Stacktrace:\n${throwable.stackTraceToString()}\n" +
+                "-------------------\n\n"
+        
+        logDir?.let { dir ->
+            try {
+                val logFile = File(dir, SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).format(Date()) + ".log")
+                val fos = FileOutputStream(logFile, true)
+                fos.write(crashInfo.toByteArray())
+                fos.flush()
+                fos.fd.sync()
+                fos.close()
+            } catch (e: Exception) {
+                android.util.Log.e("LogManager", "Failed to save crash log", e)
+            }
+        }
+    }
+
+    private fun cleanOldLogs(dir: File) {
         executor.execute {
             try {
-                val calendar = Calendar.getInstance()
-                calendar.add(Calendar.DAY_OF_YEAR, -MAX_DAYS)
-                val thresholdDate = calendar.time
-                logDir.listFiles()?.forEach { file ->
-                    if (file.isFile && file.name.endsWith(".log")) {
-                        if (Date(file.lastModified()).before(thresholdDate)) file.delete()
+                val thresholdDate = Calendar.getInstance().apply { add(Calendar.DAY_OF_YEAR, -MAX_DAYS) }.time
+                dir.listFiles()?.forEach { file ->
+                    if (file.isFile && file.name.endsWith(".log") && Date(file.lastModified()).before(thresholdDate)) {
+                        file.delete()
                     }
                 }
             } catch (e: Exception) {}
@@ -84,7 +125,6 @@ object LogManager {
 
     fun zipLogs(context: Context): String? {
         val dir = logDir ?: return null
-        if (!dir.exists() || dir.listFiles().isNullOrEmpty()) return null
         val zipFile = File(context.getExternalFilesDir(null), "logs_${System.currentTimeMillis()}.zip")
         return try {
             ZipOutputStream(FileOutputStream(zipFile)).use { zos ->
@@ -97,48 +137,29 @@ object LogManager {
                 }
             }
             zipFile.absolutePath
-        } catch (e: Exception) {
-            Timber.e(e, "Zip logs failed")
-            null
-        }
+        } catch (e: Exception) { null }
     }
 
     fun uploadLogs(context: Context, callback: (Boolean, String) -> Unit) {
         executor.execute {
-            val zipPath = zipLogs(context)
-            if (zipPath == null) {
-                callback(false, "打包日志失败")
-                return@execute
-            }
-
-            val file = File(zipPath)
+            val zipPath = zipLogs(context) ?: return@execute callback(false, "打包失败")
             val serverUrl = AppConfig.getServerUrl(context)
             val uploadUrl = "$serverUrl/api/attachment/upload"
             val bearerToken = "eyJraWQiOiJzLXYxIiwidHlwIjoiSldUIiwiYWxnIjoiSFMyNTYifQ.eyJzdWIiOiJhZG1pbiIsInR5cCI6ImFjY2VzcyIsImV4cCI6MTc3NjQ5MDczNSwianRpIjoiMjYzNjljYzQtYzJiMy00YTg0LWFiYTMtZDU4NmNiZDRmMmM0IiwiZmdwIjoiY2FhNzYzOTI4YWRhYWZiYjgzMjE3NjExYmVjYTc3ZjMiLCJraWQiOiJzLXYxIn0.AyuzNAe-R_GOBC65STH5qpHkmmUngX8rMBPI4CdIIhk"
 
-            val requestBody = MultipartBody.Builder()
-                .setType(MultipartBody.FORM)
-                .addFormDataPart("file", file.name, file.asRequestBody("application/zip".toMediaTypeOrNull()))
-                .build()
-
-            val request = Request.Builder()
-                .url(uploadUrl)
-                .header("Authorization", "Bearer $bearerToken")
-                .post(requestBody)
+            val body = MultipartBody.Builder().setType(MultipartBody.FORM)
+                .addFormDataPart("file", File(zipPath).name, File(zipPath).asRequestBody("application/zip".toMediaTypeOrNull()))
                 .build()
 
+            val request = Request.Builder().url(uploadUrl).header("Authorization", "Bearer $bearerToken").post(body).build()
             try {
                 client.newCall(request).execute().use { response ->
                     if (response.isSuccessful) {
                         callback(true, "上传成功")
-                        file.delete()
-                    } else {
-                        callback(false, "服务器返回错误: ${response.code}")
-                    }
+                        File(zipPath).delete()
+                    } else callback(false, "错误: ${response.code}")
                 }
-            } catch (e: IOException) {
-                callback(false, "网络连接失败: ${e.message}")
-            }
+            } catch (e: IOException) { callback(false, "失败: ${e.message}") }
         }
     }
 
@@ -148,18 +169,12 @@ object LogManager {
 
         override fun log(priority: Int, tag: String?, message: String, t: Throwable?) {
             executor.execute {
-                val logFile = File(logDir, "${fileNameFormat.format(Date())}.log")
-                val priorityStr = when (priority) {
-                    2 -> "V"
-                    3 -> "D"
-                    4 -> "I"
-                    5 -> "W"
-                    6 -> "E"
-                    7 -> "A"
-                    else -> "U"
-                }
-                val entry = "${dateFormat.format(Date())} $priorityStr/[$tag]: $message\n${t?.stackTraceToString() ?: ""}\n"
-                try { FileWriter(logFile, true).use { it.write(entry) } } catch (e: Exception) {}
+                try {
+                    val logFile = File(logDir, "${fileNameFormat.format(Date())}.log")
+                    val priorityStr = when (priority) { 2->"V" 3->"D" 4->"I" 5->"W" 6->"E" 7->"A" else->"U" }
+                    val entry = "${dateFormat.format(Date())} $priorityStr/[$tag]: $message\n${t?.stackTraceToString() ?: ""}\n"
+                    FileWriter(logFile, true).use { it.write(entry) }
+                } catch (e: Exception) {}
             }
         }
     }
diff --git a/app/src/main/res/drawable/bg_developer_item.xml b/app/src/main/res/drawable/bg_developer_item.xml
new file mode 100644
index 0000000..7e3b3df
--- /dev/null
+++ b/app/src/main/res/drawable/bg_developer_item.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="#10000000">
+    <item>
+        <shape>
+            <solid android:color="#FFFFFF" />
+            <corners android:radius="12dp" />
+        </shape>
+    </item>
+</ripple>
diff --git a/app/src/main/res/layout/activity_developer.xml b/app/src/main/res/layout/activity_developer.xml
new file mode 100644
index 0000000..f7593b3
--- /dev/null
+++ b/app/src/main/res/layout/activity_developer.xml
@@ -0,0 +1,235 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:background="#F1F5F9">
+
+    <!-- 顶部导航栏 -->
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="56dp"
+        android:background="#FFFFFF"
+        android:elevation="2dp"
+        android:paddingHorizontal="16dp">
+
+        <ImageView
+            android:id="@+id/btn_close"
+            android:layout_width="40dp"
+            android:layout_height="40dp"
+            android:layout_centerVertical="true"
+            android:src="@android:drawable/ic_menu_revert"
+            android:padding="8dp"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            android:contentDescription="退出" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_centerInParent="true"
+            android:text="调试控制台"
+            android:textColor="#1E293B"
+            android:textSize="17sp"
+            android:fontFamily="sans-serif-medium" />
+    </RelativeLayout>
+
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:padding="16dp">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="核心模块测试"
+                android:textColor="#64748B"
+                android:textSize="12sp"
+                android:textStyle="bold"
+                android:textAllCaps="true"
+                android:letterSpacing="0.05"
+                android:layout_marginBottom="8dp"
+                android:layout_marginStart="8dp" />
+
+            <!-- PTT 卡片 -->
+            <LinearLayout
+                android:id="@+id/item_ptt"
+                android:layout_width="match_parent"
+                android:layout_height="72dp"
+                android:background="@drawable/bg_developer_item"
+                android:orientation="horizontal"
+                android:gravity="center_vertical"
+                android:paddingHorizontal="16dp"
+                android:layout_marginBottom="12dp"
+                android:clickable="true"
+                android:focusable="true">
+                
+                <ImageView
+                    android:layout_width="32dp"
+                    android:layout_height="32dp"
+                    android:src="@android:drawable/ic_btn_speak_now"
+                    android:tint="#004A8F" />
+                
+                <LinearLayout
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:layout_marginStart="16dp"
+                    android:orientation="vertical">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="PTT 核心指令测试"
+                        android:textColor="#1E293B"
+                        android:textSize="15sp"
+                        android:textStyle="bold" />
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="Native 引擎交互及语音对讲模拟"
+                        android:textColor="#94A3B8"
+                        android:textSize="12sp" />
+                </LinearLayout>
+                
+                <ImageView
+                    android:layout_width="20dp"
+                    android:layout_height="20dp"
+                    android:src="@android:drawable/ic_media_next"
+                    android:tint="#CBD5E1" />
+            </LinearLayout>
+
+            <!-- 打印机卡片 -->
+            <LinearLayout
+                android:id="@+id/item_printer"
+                android:layout_width="match_parent"
+                android:layout_height="72dp"
+                android:background="@drawable/bg_developer_item"
+                android:orientation="horizontal"
+                android:gravity="center_vertical"
+                android:paddingHorizontal="16dp"
+                android:layout_marginBottom="12dp"
+                android:clickable="true"
+                android:focusable="true">
+                
+                <ImageView
+                    android:layout_width="32dp"
+                    android:layout_height="32dp"
+                    android:src="@android:drawable/ic_menu_save"
+                    android:tint="#10B981" />
+                
+                <LinearLayout
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:layout_marginStart="16dp"
+                    android:orientation="vertical">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="打印机串口测试"
+                        android:textColor="#1E293B"
+                        android:textSize="15sp"
+                        android:textStyle="bold" />
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="硬件指令调试及纸张状态检查"
+                        android:textColor="#94A3B8"
+                        android:textSize="12sp" />
+                </LinearLayout>
+                
+                <ImageView
+                    android:layout_width="20dp"
+                    android:layout_height="20dp"
+                    android:src="@android:drawable/ic_media_next"
+                    android:tint="#CBD5E1" />
+            </LinearLayout>
+
+            <!-- 崩溃测试卡片 -->
+            <LinearLayout
+                android:id="@+id/item_crash_test"
+                android:layout_width="match_parent"
+                android:layout_height="72dp"
+                android:background="@drawable/bg_developer_item"
+                android:orientation="horizontal"
+                android:gravity="center_vertical"
+                android:paddingHorizontal="16dp"
+                android:layout_marginBottom="12dp"
+                android:clickable="true"
+                android:focusable="true">
+                
+                <ImageView
+                    android:layout_width="32dp"
+                    android:layout_height="32dp"
+                    android:src="@android:drawable/ic_delete"
+                    android:tint="#EF4444" />
+                
+                <LinearLayout
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:layout_marginStart="16dp"
+                    android:orientation="vertical">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="异常崩溃模拟"
+                        android:textColor="#1E293B"
+                        android:textSize="15sp"
+                        android:textStyle="bold" />
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="强制抛出运行时异常测试日志记录"
+                        android:textColor="#94A3B8"
+                        android:textSize="12sp" />
+                </LinearLayout>
+            </LinearLayout>
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="系统信息"
+                android:textColor="#64748B"
+                android:textSize="12sp"
+                android:textStyle="bold"
+                android:textAllCaps="true"
+                android:layout_marginTop="24dp"
+                android:layout_marginBottom="8dp"
+                android:layout_marginStart="8dp" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@drawable/bg_developer_item"
+                android:orientation="vertical"
+                android:padding="16dp">
+                
+                <TextView
+                    android:id="@+id/tv_debug_info"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="加载设备详细信息..."
+                    android:textColor="#475569"
+                    android:textSize="13sp"
+                    android:lineSpacingExtra="4dp" />
+            </LinearLayout>
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="Version 1.0.10 (Internal Build)\nStandalone Dispatch Terminal SDK"
+                android:textColor="#94A3B8"
+                android:textSize="11sp"
+                android:gravity="center"
+                android:layout_marginTop="40dp"
+                android:layout_marginBottom="20dp" />
+
+        </LinearLayout>
+    </ScrollView>
+
+</LinearLayout>
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index 9da0246..d0929dc 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -130,29 +130,20 @@
             android:textSize="18sp" />
 
         <Button
-            android:id="@+id/btn_ptt_example"
+            android:id="@+id/btn_exit"
             android:layout_width="match_parent"
             android:layout_height="50dp"
-            android:layout_marginBottom="10dp"
-            android:background="@drawable/shape_button_login"
-            android:text="PTT 示例"
-            android:textColor="#FFFFFF"
-            android:textSize="16sp" />
-
-        <Button
-            android:id="@+id/btn_printer_test"
-            android:layout_width="match_parent"
-            android:layout_height="50dp"
-            android:background="@drawable/shape_button_login"
-            android:text="打印测试"
-            android:textColor="#FFFFFF"
-            android:textSize="16sp" />
+            android:background="@android:color/transparent"
+            android:text="退出应用"
+            android:textColor="#CCFFFFFF"
+            android:textSize="14sp" />
 
         </LinearLayout>
     </androidx.constraintlayout.widget.ConstraintLayout>
 
     <!-- 底部版权 -->
     <TextView
+        android:id="@+id/tv_copyright"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
@@ -160,6 +151,9 @@
         android:layout_marginBottom="20dp"
         android:text="Copyright © 2020-2026 Telewave. All Rights Reserved."
         android:textColor="#88FFFFFF"
-        android:textSize="12sp" />
+        android:textSize="12sp"
+        android:padding="10dp"
+        android:clickable="true"
+        android:focusable="true" />
 
 </RelativeLayout>