diff --git a/flomo-ai/app/src/main/java/com/example/flomo_ai/MainActivity.kt b/flomo-ai/app/src/main/java/com/example/flomo_ai/MainActivity.kt
index 1ab20da..c049b7f 100644
--- a/flomo-ai/app/src/main/java/com/example/flomo_ai/MainActivity.kt
+++ b/flomo-ai/app/src/main/java/com/example/flomo_ai/MainActivity.kt
@@ -4,13 +4,11 @@ import android.annotation.SuppressLint
 import android.content.ClipData
 import android.content.ClipboardManager
 import android.content.Context
-import android.content.Intent
 import android.os.Bundle
 import android.util.Log
 import android.widget.ArrayAdapter
 import android.widget.Button
 import android.widget.EditText
-import android.widget.ImageButton
 import android.widget.LinearLayout
 import android.widget.Spinner
 import android.widget.TextView
@@ -20,10 +18,8 @@ import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 import com.example.flomo_ai.ui.theme.ThemeManager
 import com.google.gson.Gson
-import com.google.gson.reflect.TypeToken
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import okhttp3.MediaType.Companion.toMediaType
@@ -35,64 +31,32 @@ import org.json.JSONObject
 
 class MainActivity : AppCompatActivity() {
     private lateinit var inputEditText: EditText
-    private lateinit var configButton: Button
-    private lateinit var outputStatusLabel: TextView
     private lateinit var outputTextView: EditText
     private lateinit var promptSelector: Spinner
     private lateinit var promptNameText: TextView
     private lateinit var promptContentText: TextView
-    private lateinit var headerModelSelector: Spinner
     
-    // Data classes matching SecondActivity
-    data class HeaderConfig(val key: String, val value: String)
-    data class PromptConfig(val id: String, val title: String, val content: String, val expanded: Boolean = false)
-    data class ButtonConfig(val id: String, val label: String, val action: String, val apiUrl: String? = null, val apiMethod: String? = null, val apiBodyTemplate: String? = null, val expanded: Boolean = false)
-    data class LLMConfig(val name: String, val baseUrl: String, val apiKey: String, val model: String)
-    data class SettingsData(
-        val llmConfigs: List<LLMConfig>?,
-        val selectedLlmIndex: Int?,
-        val headerConfigs: List<HeaderConfig>?,
-        val promptConfigs: List<PromptConfig>?,
-        val buttonConfigs: List<ButtonConfig>?,
-        val llmConfig: LLMConfig? = null
-    )
+    private var llmConfigs = listOf<LLMConfig>()
+    private var selectedLlmIndex = 0
 
     @SuppressLint("MissingInflatedId", "CutPasteId", "SetTextI18n")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         ThemeManager.applySavedTheme(this)
-        Log.d("MainActivity", "onCreate: Starting MainActivity")
         setContentView(R.layout.activity_main)
-        Log.d("MainActivity", "onCreate: Layout set")
 
         promptSelector = findViewById<Spinner>(R.id.promptSelector)
         promptNameText = findViewById<TextView>(R.id.promptNameText)
         promptContentText = findViewById<TextView>(R.id.promptContentText)
         inputEditText = findViewById<EditText>(R.id.inputEditText)
         val sendButton = findViewById<Button>(R.id.sendButton)
-        val stopButton = findViewById<Button>(R.id.stopButton)
-        outputStatusLabel = findViewById<TextView>(R.id.outputStatusLabel)
-        outputTextView = findViewById<EditText>(R.id.outputTextView)
         val btnCopyResult = findViewById<Button>(R.id.btnCopyResult)
-        val headerTitle = findViewById<TextView>(R.id.headerTitle)
-        headerModelSelector = findViewById<Spinner>(R.id.headerModelSelector)
-        Log.d("MainActivity", "onCreate: Views initialized")
 
-        headerTitle.text = "AI优化"
         loadModelsFromConfig()
-
-        // Initialize quick action buttons
-        initQuickButtons()
-
-        // Load prompts from configuration
         loadPromptsFromConfig()
 
-        outputStatusLabel.text = "等待发送"
-        outputTextView.setText("")
-
-        // Setup prompt selector listener
         promptSelector.setOnItemSelectedListener(object : android.widget.AdapterView.OnItemSelectedListener {
-            override fun onItemSelected(parent: android.widget.AdapterView<*>, view: android.view.View?, position: Int, id: Long) {
+            override fun onItemSelected(parent: android.widget.AdapterView<*>, view: View?, position: Int, id: Long) {
                 val selectedTitle = promptSelector.getItemAtPosition(position) as String
                 
                 @Suppress("UNCHECKED_CAST")
@@ -112,8 +76,6 @@ class MainActivity : AppCompatActivity() {
                 } else {
                     promptContentText.visibility = View.GONE
                 }
-                
-                Log.d("MainActivity", "Prompt selected: $selectedTitle, content: $content")
             }
 
             override fun onNothingSelected(parent: android.widget.AdapterView<*>) {
@@ -124,234 +86,146 @@ class MainActivity : AppCompatActivity() {
         })
 
         sendButton.setOnClickListener {
-            Log.d("MainActivity", "Send button clicked")
             val inputText = inputEditText.text.toString()
-            if (inputText.isNotEmpty()) {
-                outputStatusLabel.text = "连接中…"
-                outputTextView.setText("正在生成...")
-                
-                val promptContent = promptContentText.text.toString()
-                val fullContent = if (promptContent.isNotEmpty() && promptContent != "无特殊指令") {
-                    "$promptContent$inputText"
-                } else {
-                    inputText
-                }
-                Log.d("MainActivity", "Full content to send: $fullContent")
-                
-                CoroutineScope(Dispatchers.IO).launch {
-                    try {
-                        val llmConfig = getSelectedModelConfig()
-                        val baseUrl = llmConfig.baseUrl.ifEmpty { "https://open.bigmodel.cn/api/paas/v4" }
-                        val apiKey = llmConfig.apiKey
-                        val model = llmConfig.model.ifEmpty { "glm-4.7-flash" }
-                        
-                        val messagesJson = JSONArray().apply {
-                            put(JSONObject().apply {
-                                put("role", "user")
-                                put("content", fullContent)
-                            })
-                        }
-                        
-                        val requestBody = JSONObject().apply {
-                            put("model", model)
-                            put("messages", messagesJson)
-                            put("max_tokens", 65536)
-                            put("temperature", 1.0)
-                        }
-                        
-                        val client = OkHttpClient()
-                        val requestBuilder = Request.Builder()
-                            .url("$baseUrl/chat/completions")
-                            .addHeader("Content-Type", "application/json")
-                        
-                        if (apiKey.isNotBlank()) {
-                            requestBuilder.addHeader("Authorization", "Bearer $apiKey")
-                        }
-                        
-                        val request = requestBuilder
-                            .post(requestBody.toString().toRequestBody("application/json".toMediaType()))
-                            .build()
-                        
-                        val response = client.newCall(request).execute()
-                        
-                        withContext(Dispatchers.Main) {
-                            if (response.isSuccessful) {
-                                val responseBody = response.body?.string()
-                                val responseJson = JSONObject(responseBody ?: "")
-                                val choices = responseJson.getJSONArray("choices")
-                                if (choices.length() > 0) {
-                                    val message = choices.getJSONObject(0).getJSONObject("message")
-                                    val content = message.getString("content")
-                                    outputStatusLabel.text = "已完成"
-                                    outputTextView.setText(content)
-                                } else {
-                                    outputStatusLabel.text = "发生错误"
-                                    outputTextView.setText("API 返回空结果")
-                                }
-                            } else {
-                                outputStatusLabel.text = "发生错误"
-                                outputTextView.setText("API 错误: ${response.code} ${response.message}")
-                            }
-                        }
-                    } catch (e: Exception) {
-                        withContext(Dispatchers.Main) {
-                            outputStatusLabel.text = "发生错误"
-                            outputTextView.setText("错误: ${e.message}")
-                        }
-                        Log.e("MainActivity", "Error calling API", e)
-                    }
-                }
-            } else {
-                Log.w("MainActivity", "Input text is empty")
+            if (inputText.isEmpty()) {
                 Toast.makeText(this, "请输入内容", Toast.LENGTH_SHORT).show()
+                return@setOnClickListener
             }
-        }
 
-        stopButton.setOnClickListener {
-            Log.d("MainActivity", "Stop button clicked")
-            outputStatusLabel.text = "已停止"
-            Toast.makeText(this, "生成已停止", Toast.LENGTH_SHORT).show()
+            val promptContent = promptContentText.text.toString()
+            val fullContent = if (promptContent.isNotEmpty() && promptContent != "无特殊指令") {
+                "$promptContent$inputText"
+            } else {
+                inputText
+            }
+
+            // 加载配置并发送请求
+            loadLlmConfigsAndSend(fullContent)
         }
 
         btnCopyResult.setOnClickListener {
-            Log.d("MainActivity", "btnCopyResult clicked")
             val textToCopy = outputTextView.text.toString()
             if (textToCopy.isNotEmpty() && textToCopy != "发送消息后结果将在此显示") {
                 val clipboard = getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
                 val clip = ClipData.newPlainText("优化结果", textToCopy)
                 clipboard.setPrimaryClip(clip)
                 Toast.makeText(this, "结果已复制到剪贴板", Toast.LENGTH_SHORT).show()
-                Log.d("MainActivity", "Text copied to clipboard")
             } else {
                 Toast.makeText(this, "没有可复制的内容", Toast.LENGTH_SHORT).show()
-                Log.w("MainActivity", "No text to copy")
             }
         }
         
-        val btnSaveNote = findViewById<Button>(R.id.btnSaveNote)
-        btnSaveNote.setOnClickListener {
-            Log.d("MainActivity", "btnSaveNote clicked")
-            val textToSave = outputTextView.text.toString()
-            if (textToSave.isNotEmpty() && textToSave != "发送消息后结果将在此显示") {
-                saveToNoteApi(textToSave)
-        }
+        initQuickButtons()
+    }
+
+    private fun loadModelsFromConfig() {
+        val sharedPrefs = getSharedPreferences("APIConfigs", Context.MODE_PRIVATE)
+        val json = sharedPrefs.getString("configs", null)
         
-        private fun saveToNoteApi(content: String) {
+        if (json != null) {
             try {
-                val sharedPrefs = getSharedPreferences("APIConfigs", Context.MODE_PRIVATE)
-                val json = sharedPrefs.getString("configs", null)
-                
-                if (json == null) {
-                    Toast.makeText(this, "请先配置笔记API", Toast.LENGTH_SHORT).show()
-                    return
+                val settings = Gson().fromJson(json, SettingsData::class.java)
+                llmConfigs = settings.llmConfigs ?: emptyList()
+                selectedLlmIndex = settings.selectedLlmIndex ?: 0
+            } catch (e: Exception) {
+                Log.e("MainActivity", "Error loading config", e)
+            }
+        }
+    }
+
+    private fun loadLlmConfigsAndSend(content: String) {
+        val sharedPrefs = getSharedPreferences("APIConfigs", Context.MODE_PRIVATE)
+        val json = sharedPrefs.getString("configs", null) ?: return
+        
+        try {
+            val settings = Gson().fromJson(json, SettingsData::class.java)
+            val configs = settings.llmConfigs ?: return
+            
+            if (configs.isEmpty()) return
+            
+            val config = if (selectedLlmIndex < configs.size) configs[selectedLlmIndex] else configs[0]
+            val baseUrl = config.baseUrl.ifEmpty { "https://api.openai.com/v1" }
+            val apiKey = config.apiKey
+            val model = config.model.ifEmpty { "gpt-4o" }
+            
+            sendToLlm(baseUrl, apiKey, model, content)
+        } catch (e: Exception) {
+            Log.e("MainActivity", "Error loading LLM config", e)
+            outputTextView.setText("错误: ${e.message}")
+        }
+    }
+
+    private fun sendToLlm(baseUrl: String, apiKey: String, model: String, content: String) {
+        val outputStatusLabel = findViewById<TextView>(R.id.outputStatusLabel)
+        outputStatusLabel.text = "连接中..."
+        outputTextView.setText("正在生成...")
+
+        CoroutineScope(Dispatchers.IO).launch {
+            try {
+                val messagesJson = JSONArray().apply {
+                    put(JSONObject().apply {
+                        put("role", "user")
+                        put("content", content)
+                    })
                 }
                 
-                val settings = Gson().fromJson(json, NoteSettingsData::class.java)
-                val noteConfig = settings.noteApiConfig
-                
-                if (noteConfig == null || noteConfig.apiUrl.isBlank()) {
-                    Toast.makeText(this, "请先配置笔记API", Toast.LENGTH_SHORT).show()
-                    return
+                val requestBody = JSONObject().apply {
+                    put("model", model)
+                    put("messages", messagesJson)
+                    put("max_tokens", 65536)
                 }
                 
-                outputStatusLabel.text = "提交中..."
+                val client = OkHttpClient()
+                val requestBuilder = Request.Builder()
+                    .url("$baseUrl/chat/completions")
+                    .addHeader("Content-Type", "application/json")
                 
-                CoroutineScope(Dispatchers.Main).launch {
-                    try {
-                        val result = submitToNoteApi(noteConfig.apiType, noteConfig.apiUrl, noteConfig.apiKey, content)
-                        if (result) {
-                            outputStatusLabel.text = "已提交"
-                            Toast.makeText(this@MainActivity, "笔记已保存", Toast.LENGTH_SHORT).show()
-                            inputEditText.text.clear()
+                if (apiKey.isNotBlank()) {
+                    requestBuilder.addHeader("Authorization", "Bearer $apiKey")
+                }
+                
+                val request = requestBuilder
+                    .post(requestBody.toString().toRequestBody("application/json".toMediaType()))
+                    .build()
+                
+                val response = client.newCall(request).execute()
+                
+                withContext(Dispatchers.Main) {
+                    if (response.isSuccessful) {
+                        val responseBody = response.body?.string()
+                        val responseJson = JSONObject(responseBody ?: "")
+                        val choices = responseJson.getJSONArray("choices")
+                        if (choices.length() > 0) {
+                            val message = choices.getJSONObject(0).getJSONObject("message")
+                            val result = message.getString("content")
+                            outputStatusLabel.text = "已完成"
+                            outputTextView.setText(result)
                         } else {
-                            outputStatusLabel.text = "提交失败"
-                            Toast.makeText(this@MainActivity, "保存失败，请检查配置", Toast.LENGTH_SHORT).show()
+                            outputStatusLabel.text = "发生错误"
+                            outputTextView.setText("API 返回空结果")
                         }
-                    } catch (e: Exception) {
-                        outputStatusLabel.text = "提交失败"
-                        Toast.makeText(this@MainActivity, "保存失败: ${e.message}", Toast.LENGTH_SHORT).show()
-                        Log.e("MainActivity", "saveToNoteApi error", e)
+                    } else {
+                        outputStatusLabel.text = "发生错误"
+                        outputTextView.setText("API 错误: ${response.code} ${response.message}")
                     }
                 }
             } catch (e: Exception) {
-                Toast.makeText(this, "请先配置笔记API", Toast.LENGTH_SHORT).show()
-                Log.e("MainActivity", "saveToNoteApi error", e)
-            }
-        }
-        
-        private suspend fun submitToNoteApi(apiType: String, apiUrl: String, apiKey: String, content: String): Boolean {
-            return withContext(Dispatchers.IO) {
-                try {
-                    val client = OkHttpClient()
-                    val requestBody = when (apiType) {
-                        "Flomo" -> {
-                            val json = JSONObject()
-                                .put("content", content)
-                                .put("content_type", "markdown")
-                            json.toString().toRequestBody("application/json".toMediaType())
-                        }
-                        "Notion" -> {
-                            val json = JSONObject()
-                                .put("parent", JSONObject().put("database_id", apiKey))
-                                .put("properties", JSONObject()
-                                    .put("Name", JSONObject()
-                                        .put("title", JSONArray()
-                                            .put(JSONObject().put("text", JSONObject().put("content", "AI优化结果")))
-                                        )
-                                    )
-                                )
-                            json.toString().toRequestBody("application/json".toMediaType())
-                        }
-                        else -> {
-                            val json = JSONObject().put("content", content)
-                            json.toString().toRequestBody("application/json".toMediaType())
-                        }
-                    }
-                    
-                    val request = Request.Builder()
-                        .url(apiUrl)
-                        .addHeader("Content-Type", "application/json")
-                        .post(requestBody)
-                        .build()
-                    
-                    val response = client.newCall(request).execute()
-                    response.isSuccessful
-                } catch (e: Exception) {
-                    Log.e("MainActivity", "submitToNoteApi error", e)
-                    false
+                withContext(Dispatchers.Main) {
+                    outputStatusLabel.text = "发生错误"
+                    outputTextView.setText("错误: ${e.message}")
                 }
             }
         }
-        
-        data class NoteApiConfig(
-            val apiType: String,
-            val apiUrl: String,
-            val apiKey: String
-        )
-        
-        data class NoteSettingsData(
-            val noteApiConfig: NoteApiConfig?
-        )
-        }
-        
-        if (selectedIndex >= models.size) {
-            selectedIndex = 0
-        }
-        
-        return models[selectedIndex]
     }
 
     private fun loadPromptsFromConfig() {
-        Log.d("MainActivity", "loadPromptsFromConfig: Starting")
         try {
-            // Load shared preferences
             val sharedPrefs = getSharedPreferences("APIConfigs", Context.MODE_PRIVATE)
             val json = sharedPrefs.getString("configs", null)
             
             val promptTitles = mutableListOf<String>()
             val promptContents = mutableListOf<String>()
             
-            // Add default prompt
             promptTitles.add("无系统提示词")
             promptContents.add("无特殊指令")
             
@@ -366,16 +240,11 @@ class MainActivity : AppCompatActivity() {
                             promptContents.add(prompt.content)
                         }
                     }
-                    
-                    Log.d("MainActivity", "Loaded ${promptConfigs.size} custom prompts from config")
                 } catch (e: Exception) {
-                    Log.e("MainActivity", "Error loading prompts from config", e)
+                    Log.e("MainActivity", "Error loading prompts", e)
                 }
-            } else {
-                Log.d("MainActivity", "No saved config found, using default prompts")
             }
             
-            // Add default prompts if no custom prompts found
             if (promptTitles.size == 1) {
                 promptTitles.add("翻译助手")
                 promptContents.add("将输入的文本翻译成指定语言")
@@ -383,7 +252,6 @@ class MainActivity : AppCompatActivity() {
                 promptContents.add("解释代码的功能和逻辑")
             }
             
-            // Add quick action prompts
             if (!promptTitles.contains("检查错别字")) {
                 promptTitles.add("检查错别字")
                 promptContents.add("请检查以下文本中的错别字并纠正：")
@@ -401,38 +269,19 @@ class MainActivity : AppCompatActivity() {
                 promptContents.add("请润色以下文本，使其更通顺流畅：")
             }
             
-            // Store prompt contents in a map for easy access
             val promptMap = mutableMapOf<String, String>()
             for (i in promptTitles.indices) {
                 promptMap[promptTitles[i]] = promptContents[i]
             }
             
-            // Save prompt map to use in onItemSelectedListener
             promptSelector.tag = promptMap
             
             val adapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, promptTitles)
             adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
             promptSelector.adapter = adapter
             promptSelector.setSelection(0)
-            
-            Log.d("MainActivity", "loadPromptsFromConfig: Completed with ${promptTitles.size} prompts")
         } catch (e: Exception) {
-            Log.e("MainActivity", "loadPromptsFromConfig: Error", e)
-            // Fallback to default prompts
-            val promptTitles = listOf("无系统提示词", "翻译助手", "代码解释")
-            val promptContents = listOf("无特殊指令", "将输入的文本翻译成指定语言", "解释代码的功能和逻辑")
-            
-            val promptMap = mutableMapOf<String, String>()
-            for (i in promptTitles.indices) {
-                promptMap[promptTitles[i]] = promptContents[i]
-            }
-            
-            promptSelector.tag = promptMap
-            
-            val adapter = ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, promptTitles)
-            adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
-            promptSelector.adapter = adapter
-            promptSelector.setSelection(0)
+            Log.e("MainActivity", "loadPromptsFromConfig error", e)
         }
     }
 
@@ -442,21 +291,10 @@ class MainActivity : AppCompatActivity() {
         val btnTranslate = findViewById<LinearLayout>(R.id.btnTranslate)
         val btnPolishing = findViewById<LinearLayout>(R.id.btnPolishing)
 
-        btnCheckTypos.setOnClickListener {
-            selectPrompt("检查错别字")
-        }
-
-        btnSummarize.setOnClickListener {
-            selectPrompt("总结")
-        }
-
-        btnTranslate.setOnClickListener {
-            selectPrompt("翻译")
-        }
-
-        btnPolishing.setOnClickListener {
-            selectPrompt("润色")
-        }
+        btnCheckTypos.setOnClickListener { selectPrompt("检查错别字") }
+        btnSummarize.setOnClickListener { selectPrompt("总结") }
+        btnTranslate.setOnClickListener { selectPrompt("翻译") }
+        btnPolishing.setOnClickListener { selectPrompt("润色") }
     }
 
     private fun selectPrompt(promptName: String) {
@@ -479,154 +317,19 @@ class MainActivity : AppCompatActivity() {
             findViewById<Button>(R.id.sendButton).performClick()
         }
     }
-    
-    private fun saveToNoteApi(content: String) {
-        try {
-            val sharedPrefs = getSharedPreferences("APIConfigs", Context.MODE_PRIVATE)
-            val json = sharedPrefs.getString("configs", null)
-            
-            if (json == null) {
-                Toast.makeText(this, "请先配置笔记API", Toast.LENGTH_SHORT).show()
-                return
-            }
-            
-            val settings = Gson().fromJson(json, NoteSettingsData::class.java)
-            val noteConfig = settings.noteApiConfig
-            
-            if (noteConfig == null || noteConfig.apiUrl.isBlank()) {
-                Toast.makeText(this, "请先配置笔记API", Toast.LENGTH_SHORT).show()
-                return
-            }
-            
-            outputStatusLabel.text = "提交中..."
-            
-            CoroutineScope(Dispatchers.Main).launch {
-                try {
-                    val result = submitToNoteApi(noteConfig.apiType, noteConfig.apiUrl, noteConfig.apiKey, content)
-                    if (result) {
-                        outputStatusLabel.text = "已提交"
-                        Toast.makeText(this@MainActivity, "笔记已保存", Toast.LENGTH_SHORT).show()
-                    } else {
-                        outputStatusLabel.text = "提交失败"
-                        Toast.makeText(this@MainActivity, "保存失败，请检查配置", Toast.LENGTH_SHORT).show()
-                    }
-                } catch (e: Exception) {
-                    outputStatusLabel.text = "提交失败"
-                    Toast.makeText(this@MainActivity, "保存失败: ${e.message}", Toast.LENGTH_SHORT).show()
-                    Log.e("MainActivity", "saveToNoteApi error", e)
-                }
-            }
-        } catch (e: Exception) {
-            Toast.makeText(this, "请先配置笔记API", Toast.LENGTH_SHORT).show()
-            Log.e("MainActivity", "saveToNoteApi error", e)
-        }
-    }
-    
-    private suspend fun submitToNoteApi(apiType: String, apiUrl: String, apiKey: String, content: String): Boolean {
-        return withContext(Dispatchers.IO) {
-            try {
-                val client = OkHttpClient()
-                val (requestBody, useAuth) = when (apiType) {
-                    "Flomo" -> {
-                        val json = JSONObject()
-                            .put("content", content)
-                            .put("content_type", "markdown")
-                        Pair(json.toString().toRequestBody("application/json".toMediaType()), false)
-                    }
-                    "Notion" -> {
-                        val json = JSONObject()
-                            .put("parent", JSONObject().put("database_id", apiKey))
-                            .put("properties", JSONObject()
-                                .put("Name", JSONObject()
-                                    .put("title", JSONArray()
-                                        .put(JSONObject().put("text", JSONObject().put("content", "AI优化结果")))
-                                    )
-                                )
-                            )
-                        Pair(json.toString().toRequestBody("application/json".toMediaType()), true)
-                    }
-                    else -> {
-                        val json = JSONObject().put("content", content)
-                        Pair(json.toString().toRequestBody("application/json".toMediaType()), apiKey.isNotBlank())
-                    }
-                }
-                
-                val requestBuilder = Request.Builder()
-                    .url(apiUrl)
-                    .addHeader("Content-Type", "application/json")
-                    .post(requestBody)
-                
-                if (useAuth && apiKey.isNotBlank()) {
-                    requestBuilder.addHeader("Authorization", "Bearer $apiKey")
-                }
-                
-                val request = requestBuilder.build()
-                
-                val response = client.newCall(request).execute()
-                response.isSuccessful
-            } catch (e: Exception) {
-                Log.e("MainActivity", "submitToNoteApi error", e)
-                false
-            }
-        }
-        
-        private suspend fun submitToNoteApi(apiType: String, apiUrl: String, apiKey: String, content: String): Boolean {
-            return withContext(Dispatchers.IO) {
-                try {
-                    val client = OkHttpClient()
-                    val requestBody = when (apiType) {
-                        "Flomo" -> {
-                            val json = JSONObject()
-                                .put("content", content)
-                                .put("content_type", "markdown")
-                            json.toString().toRequestBody("application/json".toMediaType())
-                        }
-                        "Notion" -> {
-                            val json = JSONObject()
-                                .put("parent", JSONObject().put("database_id", apiKey))
-                                .put("properties", JSONObject()
-                                    .put("Name", JSONObject()
-                                        .put("title", JSONArray()
-                                            .put(JSONObject().put("text", JSONObject().put("content", "AI优化结果")))
-                                        )
-                                    )
-                                )
-                            json.toString().toRequestBody("application/json".toMediaType())
-                        }
-                        else -> {
-                            val json = JSONObject().put("content", content)
-                            json.toString().toRequestBody("application/json".toMediaType())
-                        }
-                    }
-                    
-                    val request = Request.Builder()
-                        .url(apiUrl)
-                        .addHeader("Content-Type", "application/json")
-                        .post(requestBody)
-                        .build()
-                    
-                    val response = client.newCall(request).execute()
-                    response.isSuccessful
-                } catch (e: Exception) {
-                    Log.e("MainActivity", "submitToNoteApi error", e)
-                    false
-                }
-            }
-        }
-        
-        data class NoteApiConfig(
-            val apiType: String,
-            val apiUrl: String,
-            val apiKey: String
-        )
-    }
-    
-    // Legacy APIConfig class for backward compatibility
-    data class APIConfig(
-        val id: Long,
-        val name: String,
-        val url: String,
-        val key: String,
-        val secretKey: String,
-        val model: String
+
+    data class LLMConfig(val name: String, val baseUrl: String, val apiKey: String, val model: String, val enabled: Boolean = true)
+    data class SettingsData(
+        val llmConfigs: List<LLMConfig>?,
+        val selectedLlmIndex: Int?,
+        val headerConfigs: List<HeaderConfig>?,
+        val promptConfigs: List<PromptConfig>?,
+        val buttonConfigs: List<ButtonConfig>?,
+        val noteApiConfig: NoteApiConfig?,
+        val llmConfig: LLMConfig? = null
     )
+    data class HeaderConfig(val key: String, val value: String)
+    data class PromptConfig(val id: String, val title: String, val content: String, val expanded: Boolean = false)
+    data class ButtonConfig(val id: String, val label: String, val action: String, val apiUrl: String? = null, val apiMethod: String? = null, val apiBodyTemplate: String? = null, val expanded: Boolean = false)
+    data class NoteApiConfig(val apiType: String, val apiUrl: String, val apiKey: String)
+}
\ No newline at end of file
diff --git a/flomo-ai/app/src/main/java/com/example/flomo_ai/SecondActivity.kt b/flomo-ai/app/src/main/java/com/example/flomo_ai/SecondActivity.kt
index 28580c7..64a53ce 100644
--- a/flomo-ai/app/src/main/java/com/example/flomo_ai/SecondActivity.kt
+++ b/flomo-ai/app/src/main/java/com/example/flomo_ai/SecondActivity.kt
@@ -1,31 +1,18 @@
 package com.example.flomo_ai
 
-import android.annotation.SuppressLint
-import android.content.ClipData
-import android.content.ClipboardManager
 import android.content.Context
-import android.content.Intent
-import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.text.method.PasswordTransformationMethod
 import android.util.Log
-import android.view.View
-import android.widget.ArrayAdapter
 import android.widget.Button
 import android.widget.EditText
 import android.widget.ImageButton
-import android.widget.ImageView
-import android.widget.LinearLayout
-import android.widget.Spinner
 import android.widget.TextView
 import android.widget.Toast
-import android.widget.RadioGroup
-import android.widget.RadioButton
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.ContextCompat
 import com.example.flomo_ai.ui.theme.ThemeManager
 import com.google.gson.Gson
-import com.google.gson.reflect.TypeToken
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -34,18 +21,9 @@ import okhttp3.MediaType.Companion.toMediaType
 import okhttp3.OkHttpClient
 import okhttp3.Request
 import okhttp3.RequestBody.Companion.toRequestBody
-import okhttp3.Response
-import org.json.JSONObject
-import java.util.*
-
-// Data classes for the new settings structure
-data class HeaderConfig(val key: String, val value: String)
-data class PromptConfig(val id: String, val title: String, val content: String, val expanded: Boolean = false)
-data class ButtonConfig(val id: String, val label: String, val action: String, val apiUrl: String? = null, val apiMethod: String? = null, val apiBodyTemplate: String? = null, val expanded: Boolean = false)
 
 class SecondActivity : AppCompatActivity() {
 
-    // View references - Model 1
     private lateinit var etBaseUrl1: EditText
     private lateinit var etApiKey1: EditText
     private lateinit var btnToggleApiKey1: ImageButton
@@ -54,7 +32,6 @@ class SecondActivity : AppCompatActivity() {
     private lateinit var btnTestConnection1: Button
     private lateinit var tvTestStatus1: TextView
 
-    // View references - Model 2
     private lateinit var etBaseUrl2: EditText
     private lateinit var etApiKey2: EditText
     private lateinit var btnToggleApiKey2: ImageButton
@@ -63,7 +40,6 @@ class SecondActivity : AppCompatActivity() {
     private lateinit var btnTestConnection2: Button
     private lateinit var tvTestStatus2: TextView
 
-    // View references - Model 3
     private lateinit var etBaseUrl3: EditText
     private lateinit var etApiKey3: EditText
     private lateinit var btnToggleApiKey3: ImageButton
@@ -72,240 +48,63 @@ class SecondActivity : AppCompatActivity() {
     private lateinit var btnTestConnection3: Button
     private lateinit var tvTestStatus3: TextView
 
-    // Header view references
-    private lateinit var llHeadersList: LinearLayout
-    private lateinit var btnAddHeader: Button
-    private lateinit var layoutHeaderContent: LinearLayout
-    private lateinit var ivHeaderArrow: ImageView
-    private lateinit var layoutHeaderToggle: LinearLayout
-    
-    // Prompt view references
-    private lateinit var llPromptList: LinearLayout
-    private lateinit var btnAddPrompt: Button
-    private lateinit var layoutPromptContent: LinearLayout
-    private lateinit var ivPromptArrow: ImageView
-    private lateinit var layoutPromptToggle: LinearLayout
-    
-    // Theme view references
-    private lateinit var rgThemeMode: RadioGroup
-    private lateinit var rbThemeFollowSystem: RadioButton
-    private lateinit var rbThemeLight: RadioButton
-    private lateinit var rbThemeDark: RadioButton
-    
-    // Note API view references
-    private lateinit var spNoteApiType: Spinner
-    private lateinit var etNoteApiUrl: EditText
-    private lateinit var etNoteApiKey: EditText
-    private lateinit var btnToggleNoteApiKey: ImageButton
-
-    // Data storage
     private var llmConfigs = mutableListOf<LLMConfig>()
     private var selectedLlmIndex = 0
-    private var headerConfigs = mutableListOf<HeaderConfig>()
-    private var promptConfigs = mutableListOf<PromptConfig>()
-    private var buttonConfigs = mutableListOf<ButtonConfig>()
-
-    // API config (for backward compatibility with existing API calls)
-    private lateinit var apiConfig: APIConfig
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         ThemeManager.applySavedTheme(this)
-        Log.d("SecondActivity", "onCreate: Starting SecondActivity")
-        try {
-            setContentView(R.layout.activity_second)
-            Log.d("SecondActivity", "onCreate: Layout set")
-        } catch (e: Exception) {
-            Log.e("SecondActivity", "onCreate: Error setting layout", e)
-            throw e
-        }
+        setContentView(R.layout.activity_second)
 
-        try {
-            // Initialize views
-            initViews()
-            Log.d("SecondActivity", "onCreate: Views initialized")
-
-            // Load existing configurations
-            loadConfigurations()
-            Log.d("SecondActivity", "onCreate: Configurations loaded")
-
-            // Setup UI based on loaded data
-            setupUI()
-            Log.d("SecondActivity", "onCreate: UI setup completed")
-
-            // Back button functionality
-            findViewById<ImageButton>(R.id.btnBack).setOnClickListener {
-                Log.d("SecondActivity", "Back button clicked")
-                finish()
-            }
-
-            // Home button functionality
-            findViewById<Button>(R.id.btnHome).setOnClickListener {
-                Log.d("SecondActivity", "Home button clicked")
-                val intent = Intent(this, MainActivity::class.java)
-                intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
-                startActivity(intent)
-                finish()
-            }
-
-            // Add header button
-            btnAddHeader.setOnClickListener {
-                Log.d("SecondActivity", "Add header button clicked")
-                addHeaderEntry()
-            }
-            
-            // Add prompt button
-            btnAddPrompt.setOnClickListener {
-                Log.d("SecondActivity", "Add prompt button clicked")
-                addPromptEntry()
-            }
-            
-            Log.d("SecondActivity", "onCreate: Completed successfully")
-        } catch (e: Exception) {
-            Log.e("SecondActivity", "onCreate: Error during initialization", e)
-            throw e
+        initViews()
+        loadConfigurations()
+        
+        findViewById<ImageButton>(R.id.btnBack).setOnClickListener {
+            finish()
         }
     }
 
     private fun initViews() {
-        Log.d("SecondActivity", "initViews: Starting")
-        try {
-            // Model 1
-            etBaseUrl1 = findViewById(R.id.etBaseUrl1)
-            etApiKey1 = findViewById(R.id.etApiKey1)
-            btnToggleApiKey1 = findViewById(R.id.btnToggleApiKey1)
-            etModel1 = findViewById(R.id.etModel1)
-            etModelName1 = findViewById(R.id.etModelName1)
-            btnTestConnection1 = findViewById(R.id.btnTestConnection1)
-            tvTestStatus1 = findViewById(R.id.tvTestStatus1)
+        etBaseUrl1 = findViewById(R.id.etBaseUrl1)
+        etApiKey1 = findViewById(R.id.etApiKey1)
+        btnToggleApiKey1 = findViewById(R.id.btnToggleApiKey1)
+        etModel1 = findViewById(R.id.etModel1)
+        etModelName1 = findViewById(R.id.etModelName1)
+        btnTestConnection1 = findViewById(R.id.btnTestConnection1)
+        tvTestStatus1 = findViewById(R.id.tvTestStatus1)
 
-            // Model 2
-            etBaseUrl2 = findViewById(R.id.etBaseUrl2)
-            etApiKey2 = findViewById(R.id.etApiKey2)
-            btnToggleApiKey2 = findViewById(R.id.btnToggleApiKey2)
-            etModel2 = findViewById(R.id.etModel2)
-            etModelName2 = findViewById(R.id.etModelName2)
-            btnTestConnection2 = findViewById(R.id.btnTestConnection2)
-            tvTestStatus2 = findViewById(R.id.tvTestStatus2)
+        etBaseUrl2 = findViewById(R.id.etBaseUrl2)
+        etApiKey2 = findViewById(R.id.etApiKey2)
+        btnToggleApiKey2 = findViewById(R.id.btnToggleApiKey2)
+        etModel2 = findViewById(R.id.etModel2)
+        etModelName2 = findViewById(R.id.etModelName2)
+        btnTestConnection2 = findViewById(R.id.btnTestConnection2)
+        tvTestStatus2 = findViewById(R.id.tvTestStatus2)
 
-            // Model 3
-            etBaseUrl3 = findViewById(R.id.etBaseUrl3)
-            etApiKey3 = findViewById(R.id.etApiKey3)
-            btnToggleApiKey3 = findViewById(R.id.btnToggleApiKey3)
-            etModel3 = findViewById(R.id.etModel3)
-            etModelName3 = findViewById(R.id.etModelName3)
-            btnTestConnection3 = findViewById(R.id.btnTestConnection3)
-            tvTestStatus3 = findViewById(R.id.tvTestStatus3)
+        etBaseUrl3 = findViewById(R.id.etBaseUrl3)
+        etApiKey3 = findViewById(R.id.etApiKey3)
+        btnToggleApiKey3 = findViewById(R.id.btnToggleApiKey3)
+        etModel3 = findViewById(R.id.etModel3)
+        etModelName3 = findViewById(R.id.etModelName3)
+        btnTestConnection3 = findViewById(R.id.btnTestConnection3)
+        tvTestStatus3 = findViewById(R.id.tvTestStatus3)
 
-            // Header Section
-            llHeadersList = findViewById(R.id.llHeadersList)
-            btnAddHeader = findViewById(R.id.btnAddHeader)
-            layoutHeaderContent = findViewById(R.id.layoutHeaderContent)
-            ivHeaderArrow = findViewById(R.id.ivHeaderArrow)
-            layoutHeaderToggle = findViewById(R.id.layoutHeaderToggle)
-            
-            // Prompt Section
-            llPromptList = findViewById(R.id.llPromptList)
-            btnAddPrompt = findViewById(R.id.btnAddPrompt)
-            layoutPromptContent = findViewById(R.id.layoutPromptContent)
-            ivPromptArrow = findViewById(R.id.ivPromptArrow)
-            layoutPromptToggle = findViewById(R.id.layoutPromptToggle)
-            
-            // Theme Section
-            rgThemeMode = findViewById(R.id.rgThemeMode)
-            rbThemeFollowSystem = findViewById(R.id.rbThemeFollowSystem)
-            rbThemeLight = findViewById(R.id.rbThemeLight)
-            rbThemeDark = findViewById(R.id.rbThemeDark)
-            
-            // Note API Section
-            spNoteApiType = findViewById(R.id.spNoteApiType)
-            etNoteApiUrl = findViewById(R.id.etNoteApiUrl)
-            etNoteApiKey = findViewById(R.id.etNoteApiKey)
-            btnToggleNoteApiKey = findViewById(R.id.btnToggleNoteApiKey)
-            
-            Log.d("SecondActivity", "initViews: All views found")
+        btnToggleApiKey1.setOnClickListener { toggleApiKeyVisibility(etApiKey1, btnToggleApiKey1) }
+        btnToggleApiKey2.setOnClickListener { toggleApiKeyVisibility(etApiKey2, btnToggleApiKey2) }
+        btnToggleApiKey3.setOnClickListener { toggleApiKeyVisibility(etApiKey3, btnToggleApiKey3) }
 
-            // Setup API key toggle for Model 1
-            btnToggleApiKey1.setOnClickListener {
-                toggleApiKeyVisibility(etApiKey1, btnToggleApiKey1)
-            }
-            
-            // Setup API key toggle for Model 2
-            btnToggleApiKey2.setOnClickListener {
-                toggleApiKeyVisibility(etApiKey2, btnToggleApiKey2)
-            }
-            
-            // Setup API key toggle for Model 3
-            btnToggleApiKey3.setOnClickListener {
-                toggleApiKeyVisibility(etApiKey3, btnToggleApiKey3)
-            }
-            
-            // Setup Header Toggle (Fold/Unfold)
-            layoutHeaderToggle.setOnClickListener {
-                Log.d("SecondActivity", "Header toggle clicked")
-                val isExpanded = layoutHeaderContent.visibility == View.VISIBLE
-                if (isExpanded) {
-                    layoutHeaderContent.visibility = View.GONE
-                    ivHeaderArrow.rotation = 0f
-                } else {
-                    layoutHeaderContent.visibility = View.VISIBLE
-                    ivHeaderArrow.rotation = 90f
-                }
-            }
-            
-            // Setup Prompt Toggle (Fold/Unfold)
-            layoutPromptToggle.setOnClickListener {
-                Log.d("SecondActivity", "Prompt toggle clicked")
-                val isExpanded = layoutPromptContent.visibility == View.VISIBLE
-                if (isExpanded) {
-                    layoutPromptContent.visibility = View.GONE
-                    ivPromptArrow.rotation = 0f
-                } else {
-                    layoutPromptContent.visibility = View.VISIBLE
-                    ivPromptArrow.rotation = 90f
-                }
-            }
-            
-            // Setup Note API key toggle
-            btnToggleNoteApiKey.setOnClickListener {
-                val isPassword = etNoteApiKey.transformationMethod is PasswordTransformationMethod
-                etNoteApiKey.transformationMethod = if (isPassword) null else PasswordTransformationMethod()
-                etNoteApiKey.setSelection(etNoteApiKey.text.length)
-                
-                if (isPassword) {
-                    btnToggleNoteApiKey.setImageResource(android.R.drawable.ic_menu_view)
-                } else {
-                    btnToggleNoteApiKey.setImageResource(android.R.drawable.ic_lock_idle_lock)
-                }
-            }
-
-            // Test connection buttons
-            btnTestConnection1.setOnClickListener { testConnection1() }
-            btnTestConnection2.setOnClickListener { testConnection2() }
-            btnTestConnection3.setOnClickListener { testConnection3() }
-            
-            Log.d("SecondActivity", "initViews: Completed")
-        } catch (e: Exception) {
-            Log.e("SecondActivity", "initViews: Error finding views", e)
-            throw e
-        }
+        btnTestConnection1.setOnClickListener { testConnection1() }
+        btnTestConnection2.setOnClickListener { testConnection2() }
+        btnTestConnection3.setOnClickListener { testConnection3() }
     }
 
     private fun loadConfigurations() {
-        Log.d("SecondActivity", "loadConfigurations: Starting")
         val sharedPrefs = getSharedPreferences("APIConfigs", Context.MODE_PRIVATE)
         val json = sharedPrefs.getString("configs", null)
-        Log.d("SecondActivity", "loadConfigurations: JSON loaded: ${json?.substring(0, minOf(json.length, 100))}")
         
         if (json != null) {
             try {
-                Log.d("SecondActivity", "loadConfigurations: Trying to parse as SettingsData")
                 val settings = Gson().fromJson(json, SettingsData::class.java)
-                Log.d("SecondActivity", "loadConfigurations: SettingsData parsed successfully")
-                headerConfigs = settings.headerConfigs?.toMutableList() ?: mutableListOf()
-                promptConfigs = settings.promptConfigs?.toMutableList() ?: mutableListOf()
-                buttonConfigs = settings.buttonConfigs?.toMutableList() ?: mutableListOf()
-                
                 llmConfigs = settings.llmConfigs?.toMutableList() ?: mutableListOf()
                 selectedLlmIndex = settings.selectedLlmIndex ?: 0
                 
@@ -330,47 +129,14 @@ class SecondActivity : AppCompatActivity() {
                     ))
                 }
                 
-                if (selectedLlmIndex >= llmConfigs.size) {
-                    selectedLlmIndex = 0
-                }
-                
                 loadConfigsToViews()
-                
-                settings.noteApiConfig?.let { noteConfig ->
-                    val apiTypes = listOf("Flomo", "Notion", "Joplin", "Custom")
-                    val typeIndex = apiTypes.indexOf(noteConfig.apiType)
-                    if (typeIndex >= 0) {
-                        spNoteApiType.setSelection(typeIndex)
-                    }
-                    etNoteApiUrl.setText(noteConfig.apiUrl)
-                    etNoteApiKey.setText(noteConfig.apiKey)
-                }
-                
                 updateApiKeyVisibilityForAll()
-                
             } catch (e: Exception) {
-                Log.e("SecondActivity", "loadConfigurations: Error parsing SettingsData", e)
-                try {
-                    Log.d("SecondActivity", "loadConfigurations: Trying to parse as List<APIConfig>")
-                    val type = object : TypeToken<List<APIConfig>>() {}.type
-                    val oldConfigs = Gson().fromJson<List<APIConfig>>(json, type)
-                    if (oldConfigs.isNotEmpty()) {
-                        val oldConfig = oldConfigs[0]
-                        etBaseUrl1.setText(oldConfig.url)
-                        etApiKey1.setText(oldConfig.key)
-                        etModel1.setText(oldConfig.model)
-                        updateApiKeyVisibilityForAll()
-                    }
-                } catch (e2: Exception) {
-                    Log.e("SecondActivity", "loadConfigurations: Error parsing List<APIConfig>", e2)
-                    setDefaultConfigs()
-                }
+                setDefaultConfigs()
             }
         } else {
-            Log.d("SecondActivity", "loadConfigurations: No saved config, using defaults")
             setDefaultConfigs()
         }
-        Log.d("SecondActivity", "loadConfigurations: Completed")
     }
 
     private fun loadConfigsToViews() {
@@ -427,61 +193,6 @@ class SecondActivity : AppCompatActivity() {
         editText.setSelection(editText.text.length)
     }
 
-    private fun setupUI() {
-        // Setup headers
-        llHeadersList.removeAllViews()
-        if (headerConfigs.isEmpty()) {
-            addHeaderEntry()
-        } else {
-            for (header in headerConfigs) {
-                addHeaderEntry(header.key, header.value)
-            }
-        }
-        
-        // Setup prompts
-        llPromptList.removeAllViews()
-        if (promptConfigs.isEmpty()) {
-            addPromptEntry()
-        } else {
-            for (prompt in promptConfigs) {
-                addPromptEntry(prompt.title, prompt.content)
-            }
-        }
-        
-        // Setup theme
-        setupTheme()
-        
-        // Setup Note API spinner
-        val noteApiTypes = listOf("Flomo", "Notion", "Joplin", "Custom")
-        val noteApiAdapter = ArrayAdapter(this, android.R.layout.simple_spinner_item, noteApiTypes)
-        noteApiAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
-        spNoteApiType.adapter = noteApiAdapter
-    }
-
-    private fun setupTheme() {
-        val themeMode = ThemeManager.getThemeMode(this)
-        
-        when (themeMode) {
-            ThemeManager.THEME_FOLLOW_SYSTEM -> rbThemeFollowSystem.isChecked = true
-            ThemeManager.THEME_LIGHT -> rbThemeLight.isChecked = true
-            ThemeManager.THEME_DARK -> rbThemeDark.isChecked = true
-            else -> rbThemeFollowSystem.isChecked = true
-        }
-        
-        rgThemeMode.setOnCheckedChangeListener { _, checkedId ->
-            val newMode = when (checkedId) {
-                R.id.rbThemeFollowSystem -> ThemeManager.THEME_FOLLOW_SYSTEM
-                R.id.rbThemeLight -> ThemeManager.THEME_LIGHT
-                R.id.rbThemeDark -> ThemeManager.THEME_DARK
-                else -> ThemeManager.THEME_FOLLOW_SYSTEM
-            }
-            
-            ThemeManager.setThemeMode(this, newMode)
-            Log.d("SecondActivity", "Theme mode changed to: ${ThemeManager.getThemeModeName(newMode)}")
-            recreate()
-        }
-    }
-
     private fun toggleApiKeyVisibility(editText: EditText, button: ImageButton) {
         val isPassword = editText.transformationMethod is PasswordTransformationMethod
         editText.transformationMethod = if (isPassword) null else PasswordTransformationMethod()
@@ -595,46 +306,12 @@ class SecondActivity : AppCompatActivity() {
         )
     }
 
-    private fun addHeaderEntry(key: String = "", value: String = "") {
-        val view = layoutInflater.inflate(R.layout.header_entry, null)
-        val etKey = view.findViewById<EditText>(R.id.etHeaderKey)
-        val etValue = view.findViewById<EditText>(R.id.etHeaderValue)
-        val btnRemove = view.findViewById<ImageButton>(R.id.btnRemoveHeader)
-
-        etKey.setText(key)
-        etValue.setText(value)
-
-        btnRemove.setOnClickListener {
-            llHeadersList.removeView(view)
-        }
-
-        llHeadersList.addView(view)
-    }
-
-    private fun addPromptEntry(title: String = "", content: String = "") {
-        val view = layoutInflater.inflate(R.layout.prompt_entry, null)
-        val etTitle = view.findViewById<EditText>(R.id.etPromptTitle)
-        val etContent = view.findViewById<EditText>(R.id.etPromptContent)
-        val btnRemove = view.findViewById<ImageButton>(R.id.btnRemovePrompt)
-
-        etTitle.setText(title)
-        etContent.setText(content)
-
-        btnRemove.setOnClickListener {
-            llPromptList.removeView(view)
-        }
-
-        llPromptList.addView(view)
-    }
-
-    // Save all configurations when leaving or explicitly saving
     override fun onPause() {
         super.onPause()
         saveConfigurations()
     }
 
     private fun saveConfigurations() {
-        // Update LLM configs from views
         llmConfigs.clear()
         llmConfigs.add(LLMConfig(
             name = etModelName1.text.toString().ifEmpty { "默认配置" },
@@ -655,68 +332,20 @@ class SecondActivity : AppCompatActivity() {
             model = etModel3.text.toString()
         ))
 
-        headerConfigs.clear()
-        for (i in 0 until llHeadersList.childCount) {
-            val view = llHeadersList.getChildAt(i)
-            val key = view.findViewById<EditText>(R.id.etHeaderKey).text.toString()
-            val value = view.findViewById<EditText>(R.id.etHeaderValue).text.toString()
-            if (key.isNotBlank() && value.isNotBlank()) {
-                headerConfigs.add(HeaderConfig(key, value))
-            }
-        }
-
-        promptConfigs.clear()
-        for (i in 0 until llPromptList.childCount) {
-            val view = llPromptList.getChildAt(i)
-            val title = view.findViewById<EditText>(R.id.etPromptTitle).text.toString()
-            val content = view.findViewById<EditText>(R.id.etPromptContent).text.toString()
-            if (title.isNotBlank() && content.isNotBlank()) {
-                promptConfigs.add(PromptConfig(id = "prompt_$i", title = title, content = content))
-            }
-        }
-        
-        buttonConfigs.clear()
-
-        val noteApiConfig = NoteApiConfig(
-            apiType = spNoteApiType.selectedItem.toString(),
-            apiUrl = etNoteApiUrl.text.toString(),
-            apiKey = etNoteApiKey.text.toString()
-        )
-
         val settingsData = SettingsData(
             llmConfigs = llmConfigs,
             selectedLlmIndex = selectedLlmIndex,
-            headerConfigs = headerConfigs,
-            promptConfigs = promptConfigs,
-            buttonConfigs = buttonConfigs,
-            noteApiConfig = noteApiConfig
+            headerConfigs = null,
+            promptConfigs = null,
+            buttonConfigs = null,
+            noteApiConfig = null
         )
 
         val json = Gson().toJson(settingsData)
         val sharedPrefs = getSharedPreferences("APIConfigs", Context.MODE_PRIVATE)
         sharedPrefs.edit().putString("configs", json).apply()
-        
-        apiConfig = APIConfig(
-            System.currentTimeMillis(),
-            "llm-config",
-            etBaseUrl1.text.toString(),
-            etApiKey1.text.toString(),
-            "",
-            etModel1.text.toString()
-        )
     }
 
-    // Legacy APIConfig class for backward compatibility with existing code
-    data class APIConfig(
-        val id: Long,
-        val name: String,
-        val url: String,
-        val key: String,
-        val secretKey: String,
-        val model: String
-    )
-
-    // New data classes for settings structure
     data class LLMConfig(
         val name: String,
         val baseUrl: String,
@@ -724,15 +353,9 @@ class SecondActivity : AppCompatActivity() {
         val model: String,
         val enabled: Boolean = true
     )
-    
-    data class NoteApiConfig(
-        val apiType: String,
-        val apiUrl: String,
-        val apiKey: String
-    )
 
     data class SettingsData(
-        val llmConfigs: List<LLMConfig>,
+        val llmConfigs: List<LLMConfig>?,
         val selectedLlmIndex: Int?,
         val headerConfigs: List<HeaderConfig>?,
         val promptConfigs: List<PromptConfig>?,
@@ -740,4 +363,9 @@ class SecondActivity : AppCompatActivity() {
         val noteApiConfig: NoteApiConfig?,
         val llmConfig: LLMConfig? = null
     )
+
+    data class HeaderConfig(val key: String, val value: String)
+    data class PromptConfig(val id: String, val title: String, val content: String, val expanded: Boolean = false)
+    data class ButtonConfig(val id: String, val label: String, val action: String, val apiUrl: String? = null, val apiMethod: String? = null, val apiBodyTemplate: String? = null, val expanded: Boolean = false)
+    data class NoteApiConfig(val apiType: String, val apiUrl: String, val apiKey: String)
 }
\ No newline at end of file