diff --git a/app/src/main/java/com/example/flomo_ai/MainActivity.kt b/app/src/main/java/com/example/flomo_ai/MainActivity.kt
index f5e05d3..f71cc4e 100644
--- a/app/src/main/java/com/example/flomo_ai/MainActivity.kt
+++ b/app/src/main/java/com/example/flomo_ai/MainActivity.kt
@@ -11,6 +11,7 @@ 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
 import android.widget.Toast
@@ -23,6 +24,13 @@ 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
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.toRequestBody
+import org.json.JSONArray
+import org.json.JSONObject
 
 class MainActivity : AppCompatActivity() {
     private lateinit var inputEditText: EditText
@@ -65,7 +73,10 @@ class MainActivity : AppCompatActivity() {
         Log.d("MainActivity", "onCreate: Views initialized")
 
         headerTitle.text = "AI优化"
-        headerModelName.text = "gpt-4o"
+        headerModelName.text = "GPT-4o"
+
+        // Initialize quick action buttons
+        initQuickButtons()
 
         // Load prompts from configuration
         loadPromptsFromConfig()
@@ -157,6 +168,17 @@ class MainActivity : AppCompatActivity() {
                 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)
+            } else {
+                Toast.makeText(this, "没有可保存的内容", Toast.LENGTH_SHORT).show()
+            }
+        }
 
         try {
         configButton = findViewById<Button>(R.id.configButton)
@@ -222,6 +244,24 @@ 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：")
+            }
+            if (!promptTitles.contains("总结")) {
+                promptTitles.add("总结")
+                promptContents.add("请用简洁的语言总结以下文本的主要内容：")
+            }
+            if (!promptTitles.contains("翻译")) {
+                promptTitles.add("翻译")
+                promptContents.add("请翻译以下文本：")
+            }
+            if (!promptTitles.contains("润色")) {
+                promptTitles.add("润色")
+                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) {
@@ -256,4 +296,143 @@ class MainActivity : AppCompatActivity() {
             promptSelector.setSelection(0)
         }
     }
+
+    private fun initQuickButtons() {
+        val btnCheckTypos = findViewById<LinearLayout>(R.id.btnCheckTypos)
+        val btnSummarize = findViewById<LinearLayout>(R.id.btnSummarize)
+        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")
+        }
+    }
+
+    private fun selectPrompt(promptName: String) {
+        @Suppress("UNCHECKED_CAST")
+        val promptMap = promptSelector.tag as? MutableMap<String, String>
+        
+        val content = promptMap?.get(promptName) ?: when (promptName) {
+            "检查错别字" -> "请检查以下文本中的错别字并纠正："
+            "总结" -> "请用简洁的语言总结以下文本的主要内容："
+            "翻译" -> "请翻译以下文本："
+            "润色" -> "请润色以下文本，使其更通顺流畅："
+            else -> ""
+        }
+        
+        promptContentText.text = content
+        Toast.makeText(this, "已选择: $promptName", Toast.LENGTH_SHORT).show()
+        
+        // Auto-trigger send if input is not empty
+        if (inputEditText.text.isNotEmpty()) {
+            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() || noteConfig.apiKey.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 = when (apiType) {
+                    "Flomo" -> {
+                        val json = JSONObject().put("content", content)
+                        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("Authorization", "Bearer $apiKey")
+                    .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 NoteSettingsData(
+        val noteApiConfig: NoteApiConfig?
+    )
+    
+    data class NoteApiConfig(
+        val apiType: String,
+        val apiUrl: String,
+        val apiKey: String
+    )
 }
diff --git a/app/src/main/java/com/example/flomo_ai/SecondActivity.kt b/app/src/main/java/com/example/flomo_ai/SecondActivity.kt
index 84dd1aa..17ec87c 100644
--- a/app/src/main/java/com/example/flomo_ai/SecondActivity.kt
+++ b/app/src/main/java/com/example/flomo_ai/SecondActivity.kt
@@ -10,11 +10,13 @@ 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
@@ -66,6 +68,12 @@ class SecondActivity : AppCompatActivity() {
     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 headerConfigs = mutableListOf<HeaderConfig>()
@@ -164,6 +172,12 @@ class SecondActivity : AppCompatActivity() {
             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")
 
             // Setup API key toggle
@@ -208,6 +222,19 @@ class SecondActivity : AppCompatActivity() {
                 }
             }
             
+            // 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)
+                }
+            }
+            
             Log.d("SecondActivity", "initViews: Completed")
         } catch (e: Exception) {
             Log.e("SecondActivity", "initViews: Error finding views", e)
@@ -237,6 +264,17 @@ class SecondActivity : AppCompatActivity() {
                 etApiKey.setText(settings.llmConfig?.apiKey ?: "")
                 etModel.setText(settings.llmConfig?.model ?: "gpt-4o")
                 
+                // Load Note API config
+                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)
+                }
+                
                 // Update API key visibility based on whether it has text
                 updateApiKeyVisibility()
                 
@@ -302,6 +340,12 @@ class SecondActivity : AppCompatActivity() {
         
         // 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() {
@@ -405,13 +449,21 @@ class SecondActivity : AppCompatActivity() {
             apiKey = etApiKey.text.toString(),
             model = etModel.text.toString()
         )
+        
+        // Save Note API config
+        val noteApiConfig = NoteApiConfig(
+            apiType = spNoteApiType.selectedItem.toString(),
+            apiUrl = etNoteApiUrl.text.toString(),
+            apiKey = etNoteApiKey.text.toString()
+        )
 
         // Save everything
         val settingsData = SettingsData(
             llmConfig = llmConfig,
             headerConfigs = headerConfigs,
             promptConfigs = promptConfigs,
-            buttonConfigs = buttonConfigs
+            buttonConfigs = buttonConfigs,
+            noteApiConfig = noteApiConfig
         )
 
         val json = Gson().toJson(settingsData)
@@ -445,11 +497,18 @@ class SecondActivity : AppCompatActivity() {
         val apiKey: String,
         val model: String
     )
+    
+    data class NoteApiConfig(
+        val apiType: String,
+        val apiUrl: String,
+        val apiKey: String
+    )
 
     data class SettingsData(
         val llmConfig: LLMConfig?,
         val headerConfigs: List<HeaderConfig>?,
         val promptConfigs: List<PromptConfig>?,
-        val buttonConfigs: List<ButtonConfig>?
+        val buttonConfigs: List<ButtonConfig>?,
+        val noteApiConfig: NoteApiConfig?
     )
 }
\ No newline at end of file
diff --git a/app/src/main/res/drawable/button_polish_bg.xml b/app/src/main/res/drawable/button_polish_bg.xml
new file mode 100644
index 0000000..1586317
--- /dev/null
+++ b/app/src/main/res/drawable/button_polish_bg.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/btn_polish_bg" />
+    <stroke
+        android:width="1dp"
+        android:color="@color/btn_polish_border" />
+    <corners android:radius="14dp" />
+</shape>
diff --git a/app/src/main/res/drawable/button_primary_bg.xml b/app/src/main/res/drawable/button_primary_bg.xml
index 8f5cce7..28cb6d4 100644
--- a/app/src/main/res/drawable/button_primary_bg.xml
+++ b/app/src/main/res/drawable/button_primary_bg.xml
@@ -2,5 +2,5 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
     <solid android:color="@color/primary" />
-    <corners android:radius="16dp" />
+    <corners android:radius="14dp" />
 </shape>
diff --git a/app/src/main/res/drawable/button_quick_bg.xml b/app/src/main/res/drawable/button_quick_bg.xml
new file mode 100644
index 0000000..8b1b0f7
--- /dev/null
+++ b/app/src/main/res/drawable/button_quick_bg.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/icon_container_bg"/>
+    <corners android:radius="10dp"/>
+</shape>
diff --git a/app/src/main/res/drawable/button_secondary_bg.xml b/app/src/main/res/drawable/button_secondary_bg.xml
index f4cfd11..8a384a2 100644
--- a/app/src/main/res/drawable/button_secondary_bg.xml
+++ b/app/src/main/res/drawable/button_secondary_bg.xml
@@ -3,7 +3,7 @@
     android:shape="rectangle">
     <solid android:color="@android:color/transparent" />
     <stroke
-        android:width="2dp"
-        android:color="@color/primary" />
-    <corners android:radius="16dp" />
+        android:width="1dp"
+        android:color="@color/config_button_border" />
+    <corners android:radius="12dp" />
 </shape>
diff --git a/app/src/main/res/drawable/button_summarize_bg.xml b/app/src/main/res/drawable/button_summarize_bg.xml
new file mode 100644
index 0000000..ef5c93e
--- /dev/null
+++ b/app/src/main/res/drawable/button_summarize_bg.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/btn_summarize_bg" />
+    <stroke
+        android:width="1dp"
+        android:color="@color/btn_summarize_border" />
+    <corners android:radius="14dp" />
+</shape>
diff --git a/app/src/main/res/drawable/button_translate_bg.xml b/app/src/main/res/drawable/button_translate_bg.xml
new file mode 100644
index 0000000..6671726
--- /dev/null
+++ b/app/src/main/res/drawable/button_translate_bg.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/btn_translate_bg" />
+    <stroke
+        android:width="1dp"
+        android:color="@color/btn_translate_border" />
+    <corners android:radius="14dp" />
+</shape>
diff --git a/app/src/main/res/drawable/button_typos_bg.xml b/app/src/main/res/drawable/button_typos_bg.xml
new file mode 100644
index 0000000..2dbda98
--- /dev/null
+++ b/app/src/main/res/drawable/button_typos_bg.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/btn_typos_bg" />
+    <stroke
+        android:width="1dp"
+        android:color="@color/btn_typos_border" />
+    <corners android:radius="14dp" />
+</shape>
diff --git a/app/src/main/res/drawable/edittext_border.xml b/app/src/main/res/drawable/edittext_border.xml
index b4ca069..75da505 100644
--- a/app/src/main/res/drawable/edittext_border.xml
+++ b/app/src/main/res/drawable/edittext_border.xml
@@ -3,6 +3,6 @@
     <solid android:color="@color/surface" />
     <stroke
         android:width="1dp"
-        android:color="@color/border" />
-    <corners android:radius="16dp" />
+        android:color="@color/border_default" />
+    <corners android:radius="14dp" />
 </shape>
diff --git a/app/src/main/res/drawable/indicator_dot.xml b/app/src/main/res/drawable/indicator_dot.xml
new file mode 100644
index 0000000..045d423
--- /dev/null
+++ b/app/src/main/res/drawable/indicator_dot.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+    <solid android:color="@color/primary"/>
+    <size android:width="6dp" android:height="6dp"/>
+</shape>
diff --git a/app/src/main/res/drawable/input_bg.xml b/app/src/main/res/drawable/input_bg.xml
new file mode 100644
index 0000000..76e0db7
--- /dev/null
+++ b/app/src/main/res/drawable/input_bg.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/surface"/>
+    <stroke android:width="1dp" android:color="@color/border_default"/>
+    <corners android:radius="22dp"/>
+</shape>
diff --git a/app/src/main/res/drawable/result_card_bg.xml b/app/src/main/res/drawable/result_card_bg.xml
new file mode 100644
index 0000000..4f1b648
--- /dev/null
+++ b/app/src/main/res/drawable/result_card_bg.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/surface"/>
+    <stroke android:width="1dp" android:color="@color/card_border"/>
+    <corners android:radius="14dp"/>
+</shape>
diff --git a/app/src/main/res/drawable/send_button_bg.xml b/app/src/main/res/drawable/send_button_bg.xml
new file mode 100644
index 0000000..147d54b
--- /dev/null
+++ b/app/src/main/res/drawable/send_button_bg.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/primary"/>
+    <corners android:radius="14dp"/>
+</shape>
diff --git a/app/src/main/res/drawable/stop_button_bg.xml b/app/src/main/res/drawable/stop_button_bg.xml
new file mode 100644
index 0000000..6a39135
--- /dev/null
+++ b/app/src/main/res/drawable/stop_button_bg.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/stop_generate_bg"/>
+    <stroke android:width="1dp" android:color="@color/stop_generate"/>
+    <corners android:radius="8dp"/>
+</shape>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index b9b3686..7e63226 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -7,45 +7,64 @@
     android:orientation="vertical"
     android:background="@color/background">
 
-    <!-- 顶部导航栏 - 去掉圆角 -->
+    <!-- 导航栏 -->
     <RelativeLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="56dp"
         android:background="@color/surface"
-        android:padding="16dp">
+        android:paddingStart="20dp"
+        android:paddingEnd="20dp">
 
-        <TextView
-            android:id="@+id/headerTitle"
+        <LinearLayout
+            android:id="@+id/headerLeft"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:text="AI优化"
-            android:textSize="18sp"
-            android:textStyle="bold"
-            android:textColor="@color/text_primary"
             android:layout_alignParentStart="true"
-            android:layout_alignParentTop="true"/>
+            android:layout_centerVertical="true"
+            android:orientation="vertical">
 
-        <TextView
-            android:id="@+id/headerModelName"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="gpt-4o"
-            android:textSize="14sp"
-            android:textColor="@color/text_hint"
-            android:layout_alignParentStart="true"
-            android:layout_below="@id/headerTitle"/>
+            <TextView
+                android:id="@+id/headerTitle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="AI优化"
+                android:textSize="20sp"
+                android:textStyle="bold"
+                android:textColor="@color/text_primary"/>
+
+            <LinearLayout
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:gravity="center_vertical"
+                android:layout_marginTop="2dp">
+
+                <View
+                    android:layout_width="6dp"
+                    android:layout_height="6dp"
+                    android:background="@drawable/indicator_dot"/>
+
+                <TextView
+                    android:id="@+id/headerModelName"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="GPT-4o"
+                    android:textSize="11sp"
+                    android:textColor="@color/primary"
+                    android:layout_marginStart="5dp"/>
+            </LinearLayout>
+        </LinearLayout>
 
         <Button
             android:id="@+id/configButton"
             android:layout_width="wrap_content"
-            android:layout_height="40dp"
+            android:layout_height="36dp"
             android:text="配置"
             android:textSize="14sp"
-            android:textColor="@color/white"
+            android:textColor="@color/primary"
             android:layout_alignParentEnd="true"
-            android:layout_alignParentTop="true"
-            android:layout_marginTop="4dp"
-            android:background="@drawable/button_config_bg"
+            android:layout_centerVertical="true"
+            android:background="@drawable/button_secondary_bg"
             android:paddingLeft="16dp"
             android:paddingRight="16dp"
             android:minWidth="0dp"
@@ -53,64 +72,245 @@
 
     </RelativeLayout>
 
-    <!-- 提示词选择区域 - 去掉圆角 -->
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:fillViewport="true">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:padding="20dp">
+
+            <!-- 快速操作 -->
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="快速操作"
+                android:textSize="12sp"
+                android:textColor="@color/text_hint"
+                android:textAllCaps="true"
+                android:letterSpacing="0.15"
+                android:layout_marginBottom="14dp"/>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:layout_marginBottom="18dp">
+
+                <LinearLayout
+                    android:id="@+id/btnCheckTypos"
+                    android:layout_width="34dp"
+                    android:layout_height="34dp"
+                    android:orientation="vertical"
+                    android:gravity="center"
+                    android:background="@drawable/button_quick_bg"
+                    android:layout_marginEnd="10dp">
+
+                    <TextView
+                        android:layout_width="20dp"
+                        android:layout_height="20dp"
+                        android:text="🔍"
+                        android:textSize="14sp"
+                        android:gravity="center"/>
+                </LinearLayout>
+
+                <LinearLayout
+                    android:id="@+id/btnSummarize"
+                    android:layout_width="34dp"
+                    android:layout_height="34dp"
+                    android:orientation="vertical"
+                    android:gravity="center"
+                    android:background="@drawable/button_quick_bg"
+                    android:layout_marginEnd="10dp">
+
+                    <TextView
+                        android:layout_width="20dp"
+                        android:layout_height="20dp"
+                        android:text="📋"
+                        android:textSize="14sp"
+                        android:gravity="center"/>
+                </LinearLayout>
+
+                <LinearLayout
+                    android:id="@+id/btnTranslate"
+                    android:layout_width="34dp"
+                    android:layout_height="34dp"
+                    android:orientation="vertical"
+                    android:gravity="center"
+                    android:background="@drawable/button_quick_bg"
+                    android:layout_marginEnd="10dp">
+
+                    <TextView
+                        android:layout_width="20dp"
+                        android:layout_height="20dp"
+                        android:text="🌐"
+                        android:textSize="14sp"
+                        android:gravity="center"/>
+                </LinearLayout>
+
+                <LinearLayout
+                    android:id="@+id/btnPolishing"
+                    android:layout_width="34dp"
+                    android:layout_height="34dp"
+                    android:orientation="vertical"
+                    android:gravity="center"
+                    android:background="@drawable/button_quick_bg">
+
+                    <TextView
+                        android:layout_width="20dp"
+                        android:layout_height="20dp"
+                        android:text="✨"
+                        android:textSize="14sp"
+                        android:gravity="center"/>
+                </LinearLayout>
+            </LinearLayout>
+
+            <!-- 提示词 -->
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="提示词"
+                android:textSize="12sp"
+                android:textColor="@color/text_hint"
+                android:textAllCaps="true"
+                android:letterSpacing="0.15"
+                android:layout_marginBottom="14dp"/>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:background="@drawable/edittext_border"
+                android:padding="14dp"
+                android:layout_marginBottom="18dp">
+
+                <Spinner
+                    android:id="@+id/promptSelector"
+                    android:layout_width="match_parent"
+                    android:layout_height="40dp"
+                    android:background="@android:color/transparent"
+                    android:spinnerMode="dropdown"
+                    android:padding="4dp"/>
+
+                <View
+                    android:layout_width="match_parent"
+                    android:layout_height="1dp"
+                    android:background="@color/divider"
+                    android:layout_marginTop="8dp"
+                    android:layout_marginBottom="8dp"/>
+
+                <TextView
+                    android:id="@+id/promptContentText"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:textSize="12sp"
+                    android:textColor="@color/text_hint"
+                    android:minLines="1"
+                    android:maxLines="3"/>
+            </LinearLayout>
+
+            <!-- 优化结果 -->
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="优化结果"
+                android:textSize="12sp"
+                android:textColor="@color/text_hint"
+                android:textAllCaps="true"
+                android:letterSpacing="0.15"
+                android:layout_marginBottom="14dp"/>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:background="@drawable/result_card_bg"
+                android:padding="16dp">
+
+                <View
+                    android:layout_width="match_parent"
+                    android:layout_height="2dp"
+                    android:background="@color/primary"
+                    android:layout_marginBottom="12dp"/>
+
+                <TextView
+                    android:id="@+id/outputStatusLabel"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="等待发送"
+                    android:textSize="12sp"
+                    android:textColor="@color/primary"
+                    android:layout_marginBottom="8dp"/>
+
+                <TextView
+                    android:id="@+id/outputTextView"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:minLines="3"
+                    android:textSize="14sp"
+                    android:text="发送消息后结果将在此显示"
+                    android:textColor="@color/text_secondary"/>
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:layout_marginTop="12dp">
+
+                    <Button
+                        android:id="@+id/btnCopyResult"
+                        android:layout_width="0dp"
+                        android:layout_height="32dp"
+                        android:layout_weight="1"
+                        android:text="复制结果"
+                        android:textSize="12sp"
+                        android:textColor="@color/primary"
+                        android:background="@drawable/button_secondary_bg"
+                        android:minWidth="0dp"
+                        android:minHeight="0dp"
+                        android:layout_marginEnd="8dp"/>
+
+                    <Button
+                        android:id="@+id/btnSaveNote"
+                        android:layout_width="0dp"
+                        android:layout_height="32dp"
+                        android:layout_weight="1"
+                        android:text="提交笔记"
+                        android:textSize="12sp"
+                        android:textColor="@color/primary"
+                        android:background="@drawable/button_secondary_bg"
+                        android:minWidth="0dp"
+                        android:minHeight="0dp"/>
+                </LinearLayout>
+            </LinearLayout>
+
+        </LinearLayout>
+    </ScrollView>
+
+    <!-- 输入区域 -->
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="vertical"
         android:background="@color/surface"
-        android:padding="16dp"
-        android:layout_marginTop="1dp">
-
-        <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="提示词"
-            android:textSize="14sp"
-            android:textColor="@color/text_primary"
-            android:layout_marginBottom="8dp"/>
-
-        <Spinner
-            android:id="@+id/promptSelector"
-            android:layout_width="match_parent"
-            android:layout_height="48dp"
-            android:background="@drawable/edittext_border"
-            android:spinnerMode="dropdown"
-            android:padding="8dp"/>
-
-        <!-- 提示词内容显示区域 -->
-        <TextView
-            android:id="@+id/promptContentText"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="8dp"
-            android:padding="4dp"
-            android:textSize="12sp"
-            android:textColor="@color/text_hint"
-            android:minLines="1"
-            android:maxLines="3"/>
-
-    </LinearLayout>
-
-    <!-- 输入区域 - 去掉圆角 -->
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:background="@color/surface"
-        android:padding="16dp"
-        android:layout_marginTop="1dp">
+        android:padding="20dp">
 
         <EditText
             android:id="@+id/inputEditText"
             android:layout_width="match_parent"
-            android:layout_height="100dp"
-            android:background="@drawable/edittext_border"
+            android:layout_height="48dp"
+            android:background="@drawable/input_bg"
             android:hint="输入待发送内容…"
             android:inputType="textMultiLine"
-            android:minLines="5"
-            android:padding="12dp"
-            android:textSize="16sp"
+            android:paddingStart="16dp"
+            android:paddingEnd="16dp"
+            android:paddingTop="12dp"
+            android:paddingBottom="12dp"
+            android:textSize="14sp"
             android:textColor="@color/text_secondary"
             android:textColorHint="@color/text_hint"
             android:gravity="top|start"/>
@@ -119,31 +319,45 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="horizontal"
-            android:layout_marginTop="12dp">
-
-            <Button
-                android:id="@+id/sendButton"
-                android:layout_width="0dp"
-                android:layout_height="48dp"
-                android:layout_weight="1"
-                android:text="发送"
-                android:textSize="16sp"
-                android:textColor="@color/white"
-                android:layout_marginEnd="8dp"
-                android:background="@drawable/button_primary_bg"
-                android:minWidth="0dp"
-                android:minHeight="0dp"/>
+            android:layout_marginTop="12dp"
+            android:gravity="center_vertical">
 
             <Button
                 android:id="@+id/stopButton"
-                android:layout_width="0dp"
-                android:layout_height="48dp"
-                android:layout_weight="1"
+                android:layout_width="wrap_content"
+                android:layout_height="36dp"
                 android:text="停止生成"
-                android:textSize="16sp"
-                android:textColor="@color/primary"
-                android:layout_marginStart="8dp"
-                android:background="@drawable/button_secondary_bg"
+                android:textSize="12sp"
+                android:textColor="@color/stop_generate"
+                android:background="@drawable/stop_button_bg"
+                android:paddingLeft="12dp"
+                android:paddingRight="12dp"
+                android:minWidth="0dp"
+                android:minHeight="0dp"
+                android:visibility="gone"/>
+
+            <View
+                android:layout_width="0dp"
+                android:layout_height="0dp"
+                android:layout_weight="1"/>
+
+            <TextView
+                android:id="@+id/tvCharCount"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="0/4000"
+                android:textSize="11sp"
+                android:textColor="@color/text_hint"
+                android:layout_marginEnd="12dp"/>
+
+            <Button
+                android:id="@+id/sendButton"
+                android:layout_width="42dp"
+                android:layout_height="42dp"
+                android:text="➤"
+                android:textSize="18sp"
+                android:textColor="@color/white"
+                android:background="@drawable/send_button_bg"
                 android:minWidth="0dp"
                 android:minHeight="0dp"/>
 
@@ -151,58 +365,4 @@
 
     </LinearLayout>
 
-    <!-- 输出区域 - 去掉圆角 -->
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1"
-        android:orientation="vertical"
-        android:background="@color/surface"
-        android:padding="16dp"
-        android:layout_marginTop="1dp">
-
-        <TextView
-            android:id="@+id/outputStatusLabel"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="等待发送"
-            android:textSize="14sp"
-            android:textColor="@color/primary"
-            android:layout_marginBottom="8dp"/>
-
-        <TextView
-            android:id="@+id/outputTextView"
-            android:layout_width="match_parent"
-            android:layout_height="0dp"
-            android:layout_weight="1"
-            android:background="@drawable/edittext_border"
-            android:padding="12dp"
-            android:textSize="16sp"
-            android:text="发送消息后结果将在此显示"
-            android:textColor="@color/text_secondary"/>
-
-    </LinearLayout>
-
-    <!-- 复制结果按钮 - 去掉圆角 -->
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:background="@color/surface"
-        android:padding="16dp"
-        android:layout_marginTop="1dp">
-
-        <Button
-            android:id="@+id/btnCopyResult"
-            android:layout_width="match_parent"
-            android:layout_height="48dp"
-            android:text="复制结果"
-            android:textSize="16sp"
-            android:textColor="@color/primary"
-            android:background="@drawable/button_secondary_bg"
-            android:minWidth="0dp"
-            android:minHeight="0dp"/>
-
-    </LinearLayout>
-
-</LinearLayout>
\ No newline at end of file
+</LinearLayout>
diff --git a/app/src/main/res/layout/activity_second.xml b/app/src/main/res/layout/activity_second.xml
index a55c37b..32b9d08 100644
--- a/app/src/main/res/layout/activity_second.xml
+++ b/app/src/main/res/layout/activity_second.xml
@@ -308,7 +308,138 @@
             </LinearLayout>
         </androidx.cardview.widget.CardView>
 
-        <!-- 4. 自定义提示词卡片 -->
+        <!-- 4. 笔记API配置卡片 -->
+        <androidx.cardview.widget.CardView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="16dp"
+            android:layout_marginEnd="16dp"
+            android:layout_marginBottom="16dp"
+            app:cardBackgroundColor="@color/surface"
+            app:cardCornerRadius="16dp"
+            app:cardElevation="2dp">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:padding="16dp">
+
+                <!-- 卡片标题 -->
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="笔记API配置"
+                    android:textColor="@color/text_primary"
+                    android:textSize="18sp"
+                    android:textStyle="bold" />
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="4dp"
+                    android:text="配置第三方笔记应用API"
+                    android:textColor="@color/text_hint"
+                    android:textSize="14sp" />
+
+                <!-- API类型选择 -->
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="16dp"
+                    android:text="API类型"
+                    android:textColor="@color/text_secondary"
+                    android:textSize="14sp" />
+
+                <Spinner
+                    android:id="@+id/spNoteApiType"
+                    android:layout_width="match_parent"
+                    android:layout_height="48dp"
+                    android:layout_marginTop="8dp"
+                    android:background="@drawable/edittext_border"
+                    android:spinnerMode="dropdown"
+                    android:padding="12dp"/>
+
+                <!-- API URL -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="16dp"
+                    android:orientation="vertical">
+
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="API地址"
+                        android:textColor="@color/text_secondary"
+                        android:textSize="14sp" />
+
+                    <EditText
+                        android:id="@+id/etNoteApiUrl"
+                        android:layout_width="match_parent"
+                        android:layout_height="48dp"
+                        android:layout_marginTop="8dp"
+                        android:background="@drawable/edittext_border"
+                        android:hint="https://api.example.com/notes"
+                        android:inputType="textUri"
+                        android:padding="12dp"
+                        android:textColor="@color/text_secondary"
+                        android:textColorHint="@color/text_hint"
+                        android:textSize="16sp" />
+                </LinearLayout>
+
+                <!-- API Key -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="16dp"
+                    android:orientation="vertical">
+
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="API密钥"
+                        android:textColor="@color/text_secondary"
+                        android:textSize="14sp" />
+
+                    <RelativeLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="48dp"
+                        android:layout_marginTop="8dp"
+                        android:background="@drawable/edittext_border">
+
+                        <EditText
+                            android:id="@+id/etNoteApiKey"
+                            android:layout_width="match_parent"
+                            android:layout_height="match_parent"
+                            android:background="@android:color/transparent"
+                            android:hint="API Key"
+                            android:inputType="textPassword"
+                            android:paddingStart="12dp"
+                            android:paddingEnd="48dp"
+                            android:textColor="@color/text_secondary"
+                            android:textColorHint="@color/text_hint"
+                            android:textSize="16sp" />
+
+                        <ImageButton
+                            android:id="@+id/btnToggleNoteApiKey"
+                            android:layout_width="24dp"
+                            android:layout_height="24dp"
+                            android:layout_alignParentEnd="true"
+                            android:layout_centerInParent="true"
+                            android:layout_marginEnd="12dp"
+                            android:background="?attr/selectableItemBackgroundBorderless"
+                            android:contentDescription="显示/隐藏"
+                            android:src="@android:drawable/ic_lock_idle_lock"
+                            app:tint="@color/text_hint" />
+                    </RelativeLayout>
+                </LinearLayout>
+
+            </LinearLayout>
+        </androidx.cardview.widget.CardView>
+
+        <!-- 5. 自定义提示词卡片 -->
         <androidx.cardview.widget.CardView
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index b5dda70..0833a79 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,38 +1,64 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="purple_200">#FFBB86FC</color>
-    <color name="purple_500">#FF6200EE</color>
-    <color name="purple_700">#FF3700B3</color>
-    <color name="teal_200">#FF03DAC5</color>
-    <color name="teal_700">#FF018786</color>
-    <color name="black">#FF000000</color>
-    <color name="white">#FFFFFFFF</color>
-    <color name="foreground_color">#eFeFeF</color>
-    <color name="background_color">#333333</color>
-    <color name="gray_light">#CCCCCC</color>
-    <color name="semi_transparent_background">#19000000</color>
-
     <!-- 核心色值 -->
-    <color name="primary">#42A5F5</color>
-    <color name="primary_variant">#1976D2</color>
-    <color name="secondary">#81C784</color>
-    <color name="secondary_variant">#4CAF50</color>
+    <color name="primary">#2DD4A8</color>
+    <color name="primary_variant">#1A1D27</color>
+    <color name="secondary">#2DD4A8</color>
+    <color name="secondary_variant">#1A1D27</color>
     
-    <!-- 中性色 -->
-    <color name="background">#F5F5F5</color>
-    <color name="surface">#FAFAFA</color>
-    <color name="surface_variant">#EEEEEE</color> <!-- 用于卡片阴影/边框 -->
+    <!-- 背景色 -->
+    <color name="background">#0F1117</color>
+    <color name="surface">#1A1D27</color>
+    <color name="surface_elevated">#232733</color>
     
-    <!-- 文本色 -->
-    <color name="text_primary">#212121</color>
-    <color name="text_secondary">#424242</color>
-    <color name="text_hint">#757575</color>
-    <color name="text_disabled">#BDBDBD</color>
+    <!-- 主强调色 -->
+    <color name="primary_light">#1A2DD4A8</color>
+    
+    <!-- 文字层级 -->
+    <color name="text_primary">#F0F2F5</color>
+    <color name="text_secondary">#C8CDD5</color>
+    <color name="text_hint">#6B7280</color>
+    <color name="text_placeholder">#4B5260</color>
+    
+    <!-- 四个操作按钮颜色 -->
+    <!-- 检查错别字 -->
+    <color name="btn_typos_bg">#0E38BDF8</color>
+    <color name="btn_typos_icon">#38BDF8</color>
+    <color name="btn_typos_border">#4D38BDF8</color>
+    
+    <!-- 总结 -->
+    <color name="btn_summarize_bg">#0E2DD4A8</color>
+    <color name="btn_summarize_icon">#2DD4A8</color>
+    <color name="btn_summarize_border">#4D2DD4A8</color>
+    
+    <!-- 翻译 -->
+    <color name="btn_translate_bg">#0EFBBF24</color>
+    <color name="btn_translate_icon">#FBBF24</color>
+    <color name="btn_translate_border">#4DFBBF24</color>
+    
+    <!-- 润色 -->
+    <color name="btn_polish_bg">#0EF472B6</color>
+    <color name="btn_polish_icon">#F472B6</color>
+    <color name="btn_polish_border">#4DF472B6</color>
+    
+    <!-- 功能色 -->
+    <color name="stop_generate">#F59E0B</color>
+    <color name="stop_generate_bg">#14F59E0B</color>
+    <color name="config_button_border">#402DD4A8</color>
+    <color name="divider">#0FFFFFFF</color>
+    <color name="card_border">#14FFFFFF</color>
+    
+    <!-- 图标容器 -->
+    <color name="icon_container_bg">#0AFFFFFF</color>
     
     <!-- 边框色 -->
-    <color name="border">#E0E0E0</color>
+    <color name="border_default">#14FFFFFF</color>
+    <color name="border_focused">#4D2DD4A8</color>
+    <color name="border_glow">#0F2DD4A8</color>
     
-    <!-- 状态色 -->
+    <!-- 其他 -->
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
     <color name="success">#4CAF50</color>
     <color name="warning">#FF9800</color>
     <color name="error">#F44336</color>