diff --git a/sidepanel.html b/sidepanel.html
index 8af39fd..60c9ba9 100644
--- a/sidepanel.html
+++ b/sidepanel.html
@@ -66,15 +66,6 @@
       </div>
     </section>
 
-    <!-- Chat / Custom Instructions -->
-    <section class="bg-white p-4 rounded-lg shadow-sm border border-gray-200 mb-4">
-      <h2 class="text-sm font-semibold mb-2">自定义指令</h2>
-      <div class="flex gap-2">
-        <input type="text" id="customInput" class="flex-1 border border-gray-300 rounded px-2 py-1 text-sm focus:ring-1 focus:ring-indigo-500 outline-none" placeholder="例如：查找电池容量...">
-        <button id="sendCustom" class="bg-indigo-100 text-indigo-700 px-3 py-1 rounded text-sm font-medium hover:bg-indigo-200 transition-colors">执行</button>
-      </div>
-    </section>
-
     <!-- Logs / Status -->
     <section class="bg-gray-100 rounded-lg p-3 text-xs">
       <div class="flex items-center justify-between mb-2">
diff --git a/sidepanel.js b/sidepanel.js
index 026d2d6..03eb423 100644
--- a/sidepanel.js
+++ b/sidepanel.js
@@ -3,8 +3,6 @@ const apiKeyInput = document.getElementById('apiKey');
 const scriptUrlInput = document.getElementById('scriptUrl');
 const modelInput = document.getElementById('modelInput');
 const saveConfigBtn = document.getElementById('saveConfig');
-const customInput = document.getElementById('customInput');
-const sendCustomBtn = document.getElementById('sendCustom');
 const statusBadge = document.getElementById('statusBadge');
 const resultsArea = document.getElementById('results');
 
@@ -70,11 +68,19 @@ saveConfigBtn.addEventListener('click', () => {
 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 rawFields = newPresetFields.value.trim();
+  
+  if (!name || !rawFields) return alert('请输入名称和字段');
+
+  // 核心逻辑：支持中英文逗号，并清理多余空格
+  const normalizedFields = rawFields
+    .split(/[，,]/) // 使用正则匹配中英文逗号
+    .map(f => f.trim()) // 清理每一项前后的空格
+    .filter(f => f !== "") // 过滤掉空项
+    .join(', '); // 统一用英文逗号+空格连接
 
   const { userPresets = DEFAULT_PRESETS } = await chrome.storage.local.get('userPresets');
-  const newPreset = { id: Date.now().toString(), name, sheetName, fields };
+  const newPreset = { id: Date.now().toString(), name, sheetName, fields: normalizedFields };
   currentPresets = [...userPresets, newPreset];
 
   await chrome.storage.local.set({ userPresets: currentPresets });
@@ -133,8 +139,6 @@ runPresetBtn.addEventListener('click', () => {
   if (preset) handleExtraction('preset', preset);
 });
 
-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']);
   
@@ -172,7 +176,6 @@ Title: ${pageData.title}`;
     const geminiResult = await callGemini(geminiApiKey, selectedModel, systemPrompt, pageData.text, userPrompt);
     let cleanedJson = parseGeminiJson(geminiResult);
     
-    // 核心修复：处理 AI 返回数组的情况
     if (Array.isArray(cleanedJson)) {
       cleanedJson = cleanedJson[0] || {};
     }
@@ -181,28 +184,19 @@ Title: ${pageData.title}`;
 
     if (googleScriptUrl) {
       updateStatus('保存至表格...', 'bg-purple-500 text-white');
-      
-      // 1. 获取用户预设的业务表头
       const businessHeaders = presetObj.fields.split(',').map(f => f.trim()).filter(f => f !== "");
-      
-      // 2. 定义元数据表头（可选，方便您追踪来源）
       const metaHeaders = ["来源链接", "提取时间"];
-      
-      // 3. 合并总表头顺序
       const allHeaders = [...businessHeaders, ...metaHeaders];
       
-      // 4. 构建发送给后端的最终数据
       const payload = {
         sheetName: presetObj.sheetName || '',
         headers: allHeaders
       };
       
-      // 将提取的数据填入 payload
       businessHeaders.forEach(h => {
         payload[h] = cleanedJson[h] || "N/A";
       });
       
-      // 填入元数据
       payload["来源链接"] = pageData.url;
       payload["提取时间"] = new Date().toLocaleString();