diff --git a/google-script.js b/google-script.js
index 0c8a797..38b606a 100644
--- a/google-script.js
+++ b/google-script.js
@@ -11,24 +11,40 @@
 function doPost(e) {
   try {
     var data = JSON.parse(e.postData.contents);
-    var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
+    var ss = SpreadsheetApp.getActiveSpreadsheet();
+    var sheet;
+
+    // 1. Get or Create the target sheet
+    if (data.sheetName) {
+      sheet = ss.getSheetByName(data.sheetName);
+      if (!sheet) {
+        sheet = ss.insertSheet(data.sheetName);
+      }
+    } else {
+      sheet = ss.getActiveSheet();
+    }
     
-    // Get headers
-    var headers = sheet.getRange(1, 1, 1, sheet.getLastColumn()).getValues()[0];
-    if (headers[0] === "" && sheet.getLastColumn() === 1) {
-      // New sheet, set headers from JSON keys
+    // 2. Get headers
+    var lastCol = sheet.getLastColumn();
+    var headers = [];
+    if (lastCol > 0) {
+      headers = sheet.getRange(1, 1, 1, lastCol).getValues()[0];
+    }
+
+    // 3. If sheet is empty, set headers from JSON keys
+    if (headers.length === 0 || headers[0] === "") {
       headers = Object.keys(data);
       sheet.appendRow(headers);
     }
     
-    // Map data to headers
+    // 4. Map data to headers
     var row = headers.map(function(header) {
-      return data[header] || "N/A";
+      return data[header] !== undefined ? data[header] : "N/A";
     });
     
     sheet.appendRow(row);
     
-    return ContentService.createTextOutput(JSON.stringify({ status: "success" }))
+    return ContentService.createTextOutput(JSON.stringify({ status: "success", sheet: sheet.getName() }))
       .setMimeType(ContentService.MimeType.JSON);
       
   } catch (error) {
@@ -37,7 +53,6 @@ function doPost(e) {
   }
 }
 
-// Handle preflight (for some environments, though 'no-cors' usually avoids this)
 function doOptions(e) {
   return ContentService.createTextOutput("")
     .setMimeType(ContentService.MimeType.TEXT);
diff --git a/sidepanel.html b/sidepanel.html
index c3931b0..8af39fd 100644
--- a/sidepanel.html
+++ b/sidepanel.html
@@ -41,7 +41,8 @@
         <div class="pt-4 border-t border-gray-100 space-y-3">
           <label class="block text-xs font-bold text-gray-600 mb-1">预设管理</label>
           <div class="space-y-2.5">
-            <input type="text" id="newPresetName" class="w-full border border-gray-300 rounded px-2 py-1.5 text-sm outline-none" placeholder="预设名称 (如：手机)">
+            <input type="text" id="newPresetName" class="w-full border border-gray-300 rounded px-2 py-1.5 text-sm outline-none" placeholder="预设名称 (如：提取笔记本)">
+            <input type="text" id="newPresetSheet" class="w-full border border-gray-300 rounded px-2 py-1.5 text-sm outline-none" placeholder="目标工作表名称 (如：笔记本清单)">
             <textarea id="newPresetFields" class="w-full border border-gray-300 rounded px-2 py-1.5 text-sm outline-none h-16" placeholder="提取字段 (用逗号分隔，如：品牌, 型号, 价格)"></textarea>
             <button id="addPreset" class="w-full bg-indigo-50 text-indigo-700 text-xs py-2 rounded hover:bg-indigo-100 transition-colors font-semibold border border-indigo-200">添加新预设</button>
           </div>
diff --git a/sidepanel.js b/sidepanel.js
index 462db78..bca6d32 100644
--- a/sidepanel.js
+++ b/sidepanel.js
@@ -10,6 +10,7 @@ const resultsArea = document.getElementById('results');
 
 // Preset Management Elements
 const newPresetName = document.getElementById('newPresetName');
+const newPresetSheet = document.getElementById('newPresetSheet');
 const newPresetFields = document.getElementById('newPresetFields');
 const addPresetBtn = document.getElementById('addPreset');
 const presetList = document.getElementById('presetList');
@@ -22,8 +23,8 @@ const configContent = document.getElementById('configContent');
 const configChevron = document.getElementById('configChevron');
 
 const DEFAULT_PRESETS = [
-  { id: 'p1', name: '提取笔记本', fields: '品牌, CPU, 内存, 存储, 价格, URL' },
-  { id: 'p2', name: '提取外设', fields: '品牌, 型号, 连接方式, 电池寿命, 价格, URL' }
+  { id: 'p1', name: '提取笔记本', sheetName: '笔记本', fields: '品牌, CPU, 内存, 存储, 价格, URL' },
+  { id: 'p2', name: '提取外设', sheetName: '外设', fields: '品牌, 型号, 连接方式, 电池寿命, 价格, URL' }
 ];
 
 let currentPresets = [];
@@ -68,15 +69,17 @@ saveConfigBtn.addEventListener('click', () => {
 // Preset Management Logic
 addPresetBtn.addEventListener('click', async () => {
   const name = newPresetName.value.trim();
+  const sheetName = newPresetSheet.value.trim();
   const fields = newPresetFields.value.trim();
   if (!name || !fields) return alert('请输入名称和字段');
 
   const { userPresets = DEFAULT_PRESETS } = await chrome.storage.local.get('userPresets');
-  const newPreset = { id: Date.now().toString(), name, fields };
+  const newPreset = { id: Date.now().toString(), name, sheetName, fields };
   currentPresets = [...userPresets, newPreset];
 
   await chrome.storage.local.set({ userPresets: currentPresets });
   newPresetName.value = '';
+  newPresetSheet.value = '';
   newPresetFields.value = '';
   renderPresets(currentPresets);
 });
@@ -99,7 +102,7 @@ function renderPresets(presets) {
     item.className = 'flex items-center justify-between bg-white p-3 mb-2 rounded-lg border border-gray-200 shadow-sm transition-all hover:border-indigo-200';
     item.innerHTML = `
       <div class="flex-1 overflow-hidden mr-3">
-        <div class="text-xs font-bold text-gray-800 truncate">${preset.name}</div>
+        <div class="text-xs font-bold text-gray-800 truncate">${preset.name} ${preset.sheetName ? `<span class="text-indigo-500 ml-1">#${preset.sheetName}</span>` : ''}</div>
         <div class="text-[11px] text-gray-400 truncate mt-1 leading-tight">${preset.fields}</div>
       </div>
       <button class="flex items-center justify-center w-7 h-7 rounded-full text-gray-300 hover:text-red-500 hover:bg-red-50 transition-all focus:outline-none border-none bg-transparent cursor-pointer" title="删除预设">
@@ -130,7 +133,7 @@ runPresetBtn.addEventListener('click', () => {
   if (preset) handleExtraction('preset', preset);
 });
 
-sendCustomBtn.addEventListener('click', () => handleExtraction('custom', { fields: customInput.value }));
+sendCustomBtn.addEventListener('click', () => handleExtraction('custom', { fields: customInput.value, sheetName: '' }));
 
 async function handleExtraction(type, presetObj) {
   const { geminiApiKey, googleScriptUrl, geminiModel } = await chrome.storage.local.get(['geminiApiKey', 'googleScriptUrl', 'geminiModel']);
@@ -170,7 +173,13 @@ Title: ${pageData.title}`;
 
     if (googleScriptUrl) {
       updateStatus('保存至表格...', 'bg-purple-500 text-white');
-      await sendToGoogleScript(googleScriptUrl, { ...cleanedJson, preset_type: presetObj.name || 'custom', source_url: pageData.url, timestamp: new Date().toISOString() });
+      await sendToGoogleScript(googleScriptUrl, { 
+        ...cleanedJson, 
+        preset_type: presetObj.name || 'custom', 
+        sheetName: presetObj.sheetName || '',
+        source_url: pageData.url, 
+        timestamp: new Date().toISOString() 
+      });
       updateStatus('成功', 'bg-green-500 text-white');
     } else {
       updateStatus('完成 (未配置脚本链接)', 'bg-yellow-500 text-white');