diff --git a/server/handlers.js b/server/handlers.js
index f162da7..3c32f31 100644
--- a/server/handlers.js
+++ b/server/handlers.js
@@ -11,9 +11,9 @@ function addToHistory(roomId, role, content) { const h = getHistory(roomId); h.p
 
 // 待处理操作
 const pendingActions = new Map();
-function hasPendingAction(roomId, username) { return pendingActions.has(`${roomId}:${username}`); }
-function setPendingAction(roomId, username, action) { pendingActions.set(`${roomId}:${username}`, action); }
-function clearPendingAction(roomId, username) { pendingActions.delete(`${roomId}:${username}`); }
+function hasPendingAction(roomId, username) { return pendingActions.has(roomId + ':' + username); }
+function setPendingAction(roomId, username, action) { pendingActions.set(roomId + ':' + username, action); }
+function clearPendingAction(roomId, username) { pendingActions.delete(roomId + ':' + username); }
 
 function storeAndBroadcastText(roomId, user, text) {
   const now = timestamp();
@@ -25,7 +25,7 @@ function storeAndBroadcastText(roomId, user, text) {
 }
 
 function executePendingAction(roomId, username) {
-  const action = pendingActions.get(`${roomId}:${username}`);
+  const action = pendingActions.get(roomId + ':' + username);
   if (!action) return false;
   clearPendingAction(roomId, username);
   const now = timestamp();
@@ -36,26 +36,26 @@ function executePendingAction(roomId, username) {
       const delH = db.prepare('DELETE FROM purchase_history WHERE purchase_id = ?');
       const delP = db.prepare('DELETE FROM purchases WHERE id = ?');
       for (const id of purchaseIds) { delA.run(id); delH.run(id); delP.run(id); }
-      const reply = `✅ 已删除采购记录：${itemName}（共 ${purchaseIds.length} 条）`;
-      storeAndBroadcastText(roomId, '小财', reply); addToHistory(roomId, 'assistant', reply);
+      const reply = '\u2705 \u5df2\u5220\u9664\u91c7\u8d2d\u8bb0\u5f55\uff1a' + itemName + '\uff08\u5171 ' + purchaseIds.length + ' \u6761\uff09';
+      storeAndBroadcastText(roomId, '\u5c0f\u8d22', reply); addToHistory(roomId, 'assistant', reply);
     } else if (action.type === 'clear') {
       db.prepare('DELETE FROM purchase_attachments WHERE purchase_id IN (SELECT id FROM purchases WHERE room_id = ?)').run(roomId);
       db.prepare('DELETE FROM purchase_history WHERE purchase_id IN (SELECT id FROM purchases WHERE room_id = ?)').run(roomId);
       db.prepare('DELETE FROM purchases WHERE room_id = ?').run(roomId);
-      const reply = '✅ 已清空当前房间的所有采购数据。';
-      storeAndBroadcastText(roomId, '小财', reply); addToHistory(roomId, 'assistant', reply);
+      const reply = '\u2705 \u5df2\u6e05\u7a7a\u5f53\u524d\u623f\u95f4\u7684\u6240\u6709\u91c7\u8d2d\u6570\u636e\u3002';
+      storeAndBroadcastText(roomId, '\u5c0f\u8d22', reply); addToHistory(roomId, 'assistant', reply);
     }
     broadcastToRoom(roomId, { type: 'purchase_updated' });
     return true;
-  } catch (e) { storeAndBroadcastText(roomId, '小财', '❌ 操作执行失败，请重试。'); return false; }
+  } catch (e) { storeAndBroadcastText(roomId, '\u5c0f\u8d22', '\u274c \u64cd\u4f5c\u6267\u884c\u5931\u8d25\uff0c\u8bf7\u91cd\u8bd5\u3002'); return false; }
 }
 
 function handleAIResult(aiResult, roomId, username, originalText, attachments) {
   const now = timestamp();
 
   if (aiResult.action === 'ask') {
-    const q = aiResult.question || aiResult.reply || '请提供更多信息。';
-    storeAndBroadcastText(roomId, '小财', q); addToHistory(roomId, 'assistant', q); return;
+    const q = aiResult.question || aiResult.reply || '\u8bf7\u63d0\u4f9b\u66f4\u591a\u4fe1\u606f\u3002';
+    storeAndBroadcastText(roomId, '\u5c0f\u8d22', q); addToHistory(roomId, 'assistant', q); return;
   }
 
   if (aiResult.action === 'delete') {
@@ -67,21 +67,20 @@ function handleAIResult(aiResult, roomId, username, originalText, attachments) {
       purchases = db.prepare("SELECT id, item, amount, payment_method, status, applicant, created_at FROM purchases WHERE room_id = ? AND (item IS NULL OR item = '' OR item = 'null' OR item = 'undefined')").all(roomId);
     } else {
       let query = 'SELECT id, item, amount, payment_method, status, applicant, created_at FROM purchases WHERE room_id = ? AND item LIKE ?';
-      const params = [roomId, `%${itemName}%`];
+      const params = [roomId, '%' + itemName + '%'];
       if (aiResult.quantity !== undefined) { query += ' AND quantity = ?'; params.push(aiResult.quantity); }
       if (aiResult.amount !== undefined) { query += ' AND amount = ?'; params.push(aiResult.amount); }
-      console.log('🔍 删除查询:', query, params);
       purchases = db.prepare(query).all(...params);
     }
     if (purchases.length === 0) {
-      const label = itemName === '__AMOUNT_ZERO__' ? '金额为0' : (itemName === '__NULL_NAME__' ? '名称为空' : `"${itemName}"`);
-      storeAndBroadcastText(roomId, '小财', `没有找到与"${label}"相关的采购记录。`);
+      const label = itemName === '__AMOUNT_ZERO__' ? '\u91d1\u989d\u4e3a0' : (itemName === '__NULL_NAME__' ? '\u540d\u79f0\u4e3a\u7a7a' : '"' + itemName + '"');
+      storeAndBroadcastText(roomId, '\u5c0f\u8d22', '\u6ca1\u6709\u627e\u5230\u4e0e"' + label + '"\u76f8\u5173\u7684\u91c7\u8d2d\u8bb0\u5f55\u3002');
       return;
     }
-    let confirmText = `⚠️ 即将删除以下 ${purchases.length} 条采购记录，请回复"确认"继续：\n\n`;
-    purchases.forEach(p => confirmText += `• ${p.item} | ¥${p.amount} | ${p.status} | ${p.applicant} | ${p.created_at}\n`);
-    confirmText += `\n如果不删除，请忽略此消息。`;
-    storeAndBroadcastText(roomId, '小财', confirmText);
+    let confirmText = '\u26a0\ufe0f \u5373\u5c06\u5220\u9664\u4ee5\u4e0b ' + purchases.length + ' \u6761\u91c7\u8d2d\u8bb0\u5f55\uff0c\u8bf7\u56de\u590d"\u786e\u8ba4"\u7ee7\u7eed\uff1a\n\n';
+    purchases.forEach(p => confirmText += '\u2022 ' + p.item + ' | ' + p.amount + ' | ' + p.status + ' | ' + p.applicant + ' | ' + p.created_at + '\n');
+    confirmText += '\n\u5982\u679c\u4e0d\u5220\u9664\uff0c\u8bf7\u5ffd\u7565\u6b64\u6d88\u606f\u3002';
+    storeAndBroadcastText(roomId, '\u5c0f\u8d22', confirmText);
     addToHistory(roomId, 'assistant', confirmText);
     setPendingAction(roomId, username, { type: 'delete', data: { itemName, purchaseIds: purchases.map(p => p.id) } });
     return;
@@ -89,84 +88,43 @@ function handleAIResult(aiResult, roomId, username, originalText, attachments) {
 
   if (aiResult.action === 'clear_all') {
     const count = db.prepare('SELECT COUNT(*) as count FROM purchases WHERE room_id = ?').get(roomId).count;
-    if (count === 0) { storeAndBroadcastText(roomId, '小财', '当前房间没有采购记录，无需清空。'); return; }
-    storeAndBroadcastText(roomId, '小财', `⚠️ 即将清空当前房间的 ${count} 条采购数据，请回复"确认"继续，否则忽略。`);
-    addToHistory(roomId, 'assistant', `请求清空${count}条记录`);
+    if (count === 0) { storeAndBroadcastText(roomId, '\u5c0f\u8d22', '\u5f53\u524d\u623f\u95f4\u6ca1\u6709\u91c7\u8d2d\u8bb0\u5f55\uff0c\u65e0\u9700\u6e05\u7a7a\u3002'); return; }
+    storeAndBroadcastText(roomId, '\u5c0f\u8d22', '\u26a0\ufe0f \u5373\u5c06\u6e05\u7a7a\u5f53\u524d\u623f\u95f4\u7684 ' + count + ' \u6761\u91c7\u8d2d\u6570\u636e\uff0c\u8bf7\u56de\u590d"\u786e\u8ba4"\u7ee7\u7eed\uff0c\u5426\u5219\u5ffd\u7565\u3002');
+    addToHistory(roomId, 'assistant', '\u8bf7\u6c42\u6e05\u7a7a' + count + '\u6761\u8bb0\u5f55');
     setPendingAction(roomId, username, { type: 'clear', data: {} });
     return;
   }
 
   if (aiResult.action === 'purchase') {
-    // use_recent_image 但缺 purchase_item → 从房间最近一条采购推断
+    // use_recent_image 但缺 purchase_item
     if (aiResult.use_recent_image && (!aiResult.purchase_item || aiResult.purchase_item === 'null')) {
       const lastPurchase = db.prepare("SELECT item FROM purchases WHERE room_id = ? AND item IS NOT NULL AND item != '' ORDER BY created_at DESC LIMIT 1").get(roomId);
-      if (lastPurchase) {
-        console.log('🛡️ use_recent_image 缺 purchase_item，推断为:', lastPurchase.item);
-        aiResult.purchase_item = lastPurchase.item;
-      }
+      if (lastPurchase) { aiResult.purchase_item = lastPurchase.item; }
     }
     const item = aiResult.purchase_item;
     if (!item || item === 'null' || item === 'undefined' || item.trim().length < 2) {
-      console.log('🚫 拒绝无效 purchase_item:', JSON.stringify(item));
-      storeAndBroadcastText(roomId, '小财', '请提供具体的物品名称。');
-      addToHistory(roomId, 'assistant', '请提供具体的物品名称。');
+      storeAndBroadcastText(roomId, '\u5c0f\u8d22', '\u8bf7\u63d0\u4f9b\u5177\u4f53\u7684\u7269\u54c1\u540d\u79f0\u3002');
+      addToHistory(roomId, 'assistant', '\u8bf7\u63d0\u4f9b\u5177\u4f53\u7684\u7269\u54c1\u540d\u79f0\u3002');
       return;
     }
-    console.log('🛒 purchase 分支, item:', item, 'attachments:', JSON.stringify(attachments));
 
     let usedRecentImage = false;
     if (aiResult.use_recent_image) {
-      console.log('🔍 use_recent_image: 查找最近图片消息, roomId=', roomId);
       const recentMsg = db.prepare("SELECT attachments FROM messages WHERE room_id = ? AND attachments IS NOT NULL AND attachments != '' AND attachments != '[]' ORDER BY id DESC LIMIT 1").get(roomId);
       if (recentMsg) {
-        try {
-          const files = JSON.parse(recentMsg.attachments);
-          if (files.length) { attachments = files; usedRecentImage = true; console.log('✅ 引用图片:', files.length, '个'); }
-        } catch(e) { console.error('❌ 解析附件失败:', e); }
+        try { const files = JSON.parse(recentMsg.attachments); if (files.length) { attachments = files; usedRecentImage = true; } } catch(e) {}
       }
     }
-    // 安全网：消息提到图片/附件但没带附件 → AI 忘设 use_recent_image，自动补
-    if (!usedRecentImage && !attachments?.length && /(图片|附件|加到|存入|关联|作为附件)/.test(originalText)) {
-      console.log('🔍 安全网: 文本提及附件但无附件，自动尝试 use_recent_image');
+    if (!usedRecentImage && !attachments?.length && /(\u56fe\u7247|\u9644\u4ef6|\u52a0\u5230|\u5b58\u5165|\u5173\u8054|\u4f5c\u4e3a\u9644\u4ef6)/.test(originalText)) {
       const recentMsg = db.prepare("SELECT attachments FROM messages WHERE room_id = ? AND attachments IS NOT NULL AND attachments != '' AND attachments != '[]' ORDER BY id DESC LIMIT 1").get(roomId);
       if (recentMsg) {
-        try {
-          const files = JSON.parse(recentMsg.attachments);
-          if (files.length) { attachments = files; usedRecentImage = true; console.log('✅ 安全网引用图片:', files.length, '个'); }
-        } catch(e) {}
+        try { const files = JSON.parse(recentMsg.attachments); if (files.length) { attachments = files; usedRecentImage = true; } } catch(e) {}
       }
     }
 
     const createdTime = normalizeTime(aiResult.created_time);
-    let isNew = aiResult.is_new === true;
-    let purchase;
-    if (isNew && attachments?.length > 0) {
-      const existing = db.prepare('SELECT * FROM purchases WHERE room_id = ? AND item LIKE ? ORDER BY created_at DESC LIMIT 1').get(roomId, `%${aiResult.purchase_item}%`);
-      if (existing) { console.log('🛡️ 兜底纠正: 转为更新模式'); isNew = false; purchase = existing; }
-    }
-    if (!isNew && !purchase) {
-      purchase = db.prepare('SELECT * FROM purchases WHERE room_id = ? AND item LIKE ? ORDER BY created_at DESC LIMIT 1').get(roomId, `%${aiResult.purchase_item}%`);
-      // 全名匹配失败 → 去掉括号内容后用剩余关键词回退匹配
-      if (!purchase) {
-        const keyword = aiResult.purchase_item.replace(/[（(].*[）)]/g, '').trim();
-        if (keyword.length >= 2) {
-          console.log('🔍 全名不匹配，尝试关键词:', keyword);
-          purchase = db.prepare('SELECT * FROM purchases WHERE room_id = ? AND item LIKE ? ORDER BY created_at DESC LIMIT 1').get(roomId, `%${keyword}%`);
-        }
-      }
-      // 所有 LIKE 失败 → 回退到房间内最近一条采购
-      if (!purchase) {
-        console.log('🔍 LIKE 全失败，回退到最近记录');
-        purchase = db.prepare('SELECT * FROM purchases WHERE room_id = ? ORDER BY created_at DESC LIMIT 1').get(roomId);
-      }
-    }
-    console.log('📦 purchase_item:', aiResult.purchase_item, isNew ? '(强制新建)' : purchase ? '(匹配已有)' : '(未匹配-新建)');
-
-    // is_new 未明确设为 false、且所有回退匹配均失败 → 视为新建
-    if (!isNew && !purchase) {
-      console.log('📦 未匹配到已有记录，转为新建模式');
-      isNew = true;
-    }
+    // AI 不负责更新 — 聊天永远新建，修改由用户从采购清单手动完成
+    let purchase = null;
 
     let replyText = '';
     const quantity = aiResult.quantity || 1;
@@ -174,88 +132,50 @@ function handleAIResult(aiResult, roomId, username, originalText, attachments) {
     const freight = aiResult.freight || 0;
     const amount = quantity * unitPrice + freight;
 
-    // 新建但金额为 0 且 AI 未提供数量/单价 → 拒绝（避免垃圾记录）
     if (!purchase && amount === 0 && aiResult.quantity === undefined && aiResult.unit_price === undefined) {
-      console.log('🚫 拒绝新建 amount=0 记录, item:', aiResult.purchase_item);
-      storeAndBroadcastText(roomId, '小财', `无法创建「${aiResult.purchase_item}」：缺少数量和价格信息，请补充。`);
-      addToHistory(roomId, 'assistant', '缺少数量和价格');
+      storeAndBroadcastText(roomId, '\u5c0f\u8d22', '\u65e0\u6cd5\u521b\u5efa\u300c' + aiResult.purchase_item + '\u300d\uff1a\u7f3a\u5c11\u6570\u91cf\u548c\u4ef7\u683c\u4fe1\u606f\uff0c\u8bf7\u8865\u5145\u3002');
+      addToHistory(roomId, 'assistant', '\u7f3a\u5c11\u6570\u91cf\u548c\u4ef7\u683c');
       return;
     }
 
-    if (!purchase) {
-      const id = uuidv4();
-      const paymentMethod = aiResult.payment_method || (aiResult.method === '淘宝' ? '支付宝' : (aiResult.method || '未指定'));
-      const invoiceType = aiResult.invoice_type || '无票';
-      const status = aiResult.status || '待付款';
-      const applicant = aiResult.applicant || username;
-      const remarks = aiResult.remarks || '';
-      db.prepare('INSERT INTO purchases (id, room_id, item, quantity, unit_price, amount, freight, payment_method, invoice_type, status, applicant, remarks, created_at) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)').run(
-        id, roomId, item, quantity, unitPrice, amount, freight, paymentMethod, invoiceType, status, applicant, remarks, createdTime
-      );
-      db.prepare('INSERT INTO purchase_history (purchase_id, action, user, timestamp) VALUES (?,?,?,?)').run(id, `创建采购：${item}，数量${quantity}，金额¥${amount}，状态${status}`, '小财', now);
-      replyText = `✅ 已记录采购：${item}，数量 ${quantity}，金额 ¥${amount}，状态 ${status}`;
-      purchase = { id };
-    } else {
-      const old = purchase;
-      const newVals = {
-        quantity: aiResult.quantity ?? old.quantity,
-        unit_price: aiResult.unit_price ?? old.unit_price,
-        freight: aiResult.freight ?? old.freight,
-        payment_method: aiResult.payment_method || (aiResult.method === '淘宝' ? '支付宝' : (aiResult.method || old.payment_method)),
-        invoice_type: aiResult.invoice_type || old.invoice_type,
-        status: aiResult.status || old.status,
-        applicant: aiResult.applicant || old.applicant,
-        remarks: aiResult.remarks !== undefined ? aiResult.remarks : old.remarks,
-        created_at: aiResult.created_time || old.created_at
-      };
-      newVals.amount = newVals.quantity * newVals.unit_price + newVals.freight;
-
-      const historyChanges = [];
-      let changed = false;
-      for (const [field, newVal] of Object.entries(newVals)) {
-        if (String(newVal) !== String(old[field])) {
-          changed = true;
-          historyChanges.push(`${field}: ${old[field]} → ${newVal}`);
-          db.prepare(`UPDATE purchases SET ${field} = ? WHERE id = ?`).run(newVal, purchase.id);
-        }
-      }
-      if (changed) {
-        db.prepare('UPDATE purchases SET updated_at = ? WHERE id = ?').run(now, purchase.id);
-        db.prepare('INSERT INTO purchase_history (purchase_id, action, user, timestamp) VALUES (?,?,?,?)').run(purchase.id, `更新：${historyChanges.join('；')}`, username, now);
-        replyText = `🔄 已更新「${aiResult.purchase_item}」：${historyChanges.join('，')}`;
-      } else {
-        replyText = `ℹ️ 采购「${aiResult.purchase_item}」的信息没有发生变化。`;
-      }
-    }
+    // 永远新建
+    const id = uuidv4();
+    const paymentMethod = aiResult.payment_method || (aiResult.method === '淘宝' ? '支付宝' : (aiResult.method || '未指定'));
+    const invoiceType = aiResult.invoice_type || '无票';
+    const status = aiResult.status || '待付款';
+    const applicant = aiResult.applicant || username;
+    const remarks = aiResult.remarks || '';
+    db.prepare('INSERT INTO purchases (id, room_id, item, quantity, unit_price, amount, freight, payment_method, invoice_type, status, applicant, remarks, created_at) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)').run(
+      id, roomId, item, quantity, unitPrice, amount, freight, paymentMethod, invoiceType, status, applicant, remarks, createdTime
+    );
+    db.prepare('INSERT INTO purchase_history (purchase_id, action, user, timestamp) VALUES (?,?,?,?)').run(id, '创建采购：' + item + '，数量' + quantity + '，金额￥' + amount + '，状态' + status, '小财', now);
+    replyText = '✅ 已记录采购：' + item + '，数量 ' + quantity + '，金额 ￥' + amount + '，状态 ' + status;
+    purchase = { id };
 
     if (attachments?.length) {
-      console.log('📎 插入附件:', attachments.length, '个, purchase_id=', purchase.id);
       const insertAttach = db.prepare('INSERT INTO purchase_attachments (purchase_id, file_path, uploaded_by, timestamp) VALUES (?,?,?,?)');
-      attachments.forEach(fp => { console.log('  📎', fp); insertAttach.run(purchase.id, fp, username, now); });
-      db.prepare('INSERT INTO purchase_history (purchase_id, action, user, timestamp) VALUES (?,?,?,?)').run(purchase.id, `添加附件：${attachments.length} 个`, username, now);
-      if (replyText.includes('没有发生') || usedRecentImage) {
-        replyText = `📎 已为「${aiResult.purchase_item}」添加 ${attachments.length} 个附件`;
-      }
-      console.log('✅ 附件完成, replyText:', replyText);
+      attachments.forEach(fp => insertAttach.run(purchase.id, fp, username, now));
+      db.prepare('INSERT INTO purchase_history (purchase_id, action, user, timestamp) VALUES (?,?,?,?)').run(purchase.id, '\u6dfb\u52a0\u9644\u4ef6\uff1a' + attachments.length + ' \u4e2a', username, now);
+      if (replyText.includes('\u6ca1\u6709\u53d1\u751f') || usedRecentImage) replyText = '\ud83d\udcce \u5df2\u4e3a\u300c' + aiResult.purchase_item + '\u300d\u6dfb\u52a0 ' + attachments.length + ' \u4e2a\u9644\u4ef6';
     } else if (usedRecentImage) {
-      replyText = '❌ 未找到最近的图片消息，请先发送图片再试。';
+      replyText = '\u274c \u672a\u627e\u5230\u6700\u8fd1\u7684\u56fe\u7247\u6d88\u606f\uff0c\u8bf7\u5148\u53d1\u9001\u56fe\u7247\u518d\u8bd5\u3002';
     }
 
-    storeAndBroadcastText(roomId, '小财', replyText);
+    storeAndBroadcastText(roomId, '\u5c0f\u8d22', replyText);
     addToHistory(roomId, 'assistant', replyText);
     broadcastToRoom(roomId, { type: 'purchase_updated' });
     return;
   }
 
   if (aiResult.action === 'query') {
-    const purchaseData = db.prepare('SELECT item, amount, payment_method, status FROM purchases WHERE room_id = ? ORDER BY created_at DESC').all(roomId).map(p => `${p.item} ¥${p.amount} ${p.payment_method||''} ${p.status}`).join('\n');
-    const summaryPrompt = `根据以下采购记录，用自然语言回答用户查询"${originalText}"。采购记录：\n${purchaseData || '暂无记录'}`;
-    callDeepSeekForSummary(summaryPrompt).then(reply => { storeAndBroadcastText(roomId, '小财', reply); addToHistory(roomId, 'assistant', reply); });
+    const purchaseData = db.prepare('SELECT item, amount, payment_method, status FROM purchases WHERE room_id = ? ORDER BY created_at DESC').all(roomId).map(p => p.item + ' ' + p.amount + ' ' + (p.payment_method||'') + ' ' + p.status).join('\n');
+    const summaryPrompt = '\u6839\u636e\u4ee5\u4e0b\u91c7\u8d2d\u8bb0\u5f55\uff0c\u7528\u81ea\u7136\u8bed\u8a00\u56de\u7b54\u7528\u6237\u67e5\u8be2"' + originalText + '"' + '\u3002\u91c7\u8d2d\u8bb0\u5f55\uff1a\n' + (purchaseData || '\u6682\u65e0\u8bb0\u5f55');
+    callDeepSeekForSummary(summaryPrompt).then(reply => { storeAndBroadcastText(roomId, '\u5c0f\u8d22', reply); addToHistory(roomId, 'assistant', reply); });
     return;
   }
 
   if (aiResult.action === 'chat') {
-    storeAndBroadcastText(roomId, '小财', aiResult.reply || '好的。');
+    storeAndBroadcastText(roomId, '\u5c0f\u8d22', aiResult.reply || '\u597d\u7684\u3002');
     addToHistory(roomId, 'assistant', aiResult.reply);
     return;
   }
@@ -264,7 +184,7 @@ function handleAIResult(aiResult, roomId, username, originalText, attachments) {
 async function callDeepSeekForSummary(prompt) {
   const { callDeepSeek } = require('./ai/client');
   const messages = [
-    { role: 'system', content: '你是一个财务助手，请根据采购记录生成简洁回复。' },
+    { role: 'system', content: '\u4f60\u662f\u4e00\u4e2a\u8d22\u52a1\u52a9\u624b\uff0c\u8bf7\u6839\u636e\u91c7\u8d2d\u8bb0\u5f55\u751f\u6210\u7b80\u6d01\u56de\u590d\u3002' },
     { role: 'user', content: prompt }
   ];
   return callDeepSeek(messages, 0.3);
diff --git a/server/public/css/style.css b/server/public/css/style.css
index ea5e9ed..b4f3c8d 100644
--- a/server/public/css/style.css
+++ b/server/public/css/style.css
@@ -4,13 +4,12 @@ body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-
 .hidden { display: none !important; }
 
 .header { background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%); color: #fff; padding: 0 16px; display: flex; justify-content: space-between; align-items: center; min-height: 48px; }
-.header-left { display: flex; align-items: center; gap: 8px; }
+.header-left { display: flex; align-items: center; gap: 8px; cursor: pointer; }
 .header-left h2 { font-size: 18px; font-weight: 500; }
 .icon-btn { background: none; border: none; color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; padding: 4px; border-radius: 50%; }
 .icon-btn svg { width: 22px; height: 22px; stroke: #fff; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
 
-#create-room-btn { visibility: hidden; }
-#create-room-btn.visible { visibility: visible; }
+
 
 .chat-list { flex: 1; overflow-y: auto; padding-bottom: 8px; }
 .chat-item { padding: 14px 16px; border-bottom: 1px solid #f0f0f0; display: flex; align-items: center; cursor: pointer; }
@@ -58,6 +57,10 @@ body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-
 
 .purchase-panel-body { flex: 1; overflow-y: auto; padding: 12px; }
 .purchase-month-group { margin-bottom: 20px; }
+.purchase-month-group summary { list-style: none; cursor: pointer; }
+.purchase-month-group summary::-webkit-details-marker { display: none; }
+.purchase-month-group summary::after { content: '▼'; font-size: 11px; margin-left: 8px; color: #888; }
+.purchase-month-group[open] summary::after { content: '▲'; }
 .purchase-month-header { background: #f5f5f5; font-size: 16px; font-weight: 600; padding: 10px 8px; border-radius: 4px; display: flex; justify-content: space-between; }
 .purchase-item { padding: 12px 8px; border-bottom: 1px solid #f0f0f0; cursor: pointer; }
 .purchase-item:active { background: #f9f9f9; }
diff --git a/server/public/index.html b/server/public/index.html
index 3257048..9d36cc5 100644
--- a/server/public/index.html
+++ b/server/public/index.html
@@ -20,7 +20,7 @@
                 <input type="password" id="login-pass" placeholder="密码">
                 <button class="primary-btn" onclick="login()" style="width:100%;">登录</button>
                 <p id="login-error" style="color:red; margin-top:8px;"></p>
-                <div class="version">v2.7</div>
+                <div class="version" id="version-text"></div>
             </div>
         </div>
 
@@ -29,19 +29,16 @@
             <!-- 群聊列表页 -->
             <div id="list-page" style="display:flex; flex-direction:column; height:100%;">
                 <div class="header">
-                    <div class="header-left">
+                    <div class="header-left" onclick="Store.logout()">
                         <svg width="24" height="24" viewBox="0 0 24 24" stroke="#fff" fill="none" stroke-width="1.5">
                             <rect x="3" y="3" width="18" height="18" rx="3"/><line x1="9" y1="9" x2="15" y2="9"/><line x1="9" y1="13" x2="15" y2="13"/><line x1="9" y1="17" x2="12" y2="17"/>
                         </svg>
                         <h2>小财记账</h2>
                     </div>
                     <div style="display:flex; gap:2px;">
-                        <button class="icon-btn" id="create-room-btn" onclick="openCreateRoom()" title="新建群聊">
+                        <button class="icon-btn visible" id="create-room-btn" onclick="openCreateRoom()" title="新建群聊">
                             <svg viewBox="0 0 24 24"><line x1="12" y1="5" x2="12" y2="19"></line><line x1="5" y1="12" x2="19" y2="12"></line></svg>
                         </button>
-                        <button class="icon-btn" id="logout-btn" onclick="Store.logout()" title="注销登录">
-                            <svg viewBox="0 0 24 24"><path d="M9 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h4"/><polyline points="16 17 21 12 16 7"/><line x1="21" y1="12" x2="9" y2="12"/></svg>
-                        </button>
                     </div>
                 </div>
                 <div class="chat-list" id="chat-list-container"></div>
@@ -238,6 +235,12 @@
     <script src="/js/purchases.js"></script>
     <script src="/js/auth.js"></script>
     <script>
+        // 版本号
+        (function() {
+            var d = new Date();
+            var pad = function(n) { return n < 10 ? '0' + n : '' + n; };
+            document.getElementById('version-text').textContent = 'v2.8-' + (d.getFullYear() % 100) + pad(d.getMonth() + 1) + pad(d.getDate());
+        })();
         document.addEventListener('input', function(e) {
             if (e.target.id === 'msg-input' || e.target.id === 'purchase-msg-input') {
                 e.target.style.height = 'auto';
diff --git a/server/public/js/auth.js b/server/public/js/auth.js
index 2ec09fd..4eaa51c 100644
--- a/server/public/js/auth.js
+++ b/server/public/js/auth.js
@@ -3,16 +3,10 @@ async function init() {
   const token = Store.getToken();
   if (token) {
     try {
-      const res = await fetch('/api/user', { headers: { 'Authorization': `Bearer ${token}` } });
+      const res = await fetch('/api/user', { headers: { 'Authorization': 'Bearer ' + token } });
       if (res.ok) {
-        const user = await res.json();
         document.getElementById('login-page').classList.add('hidden');
         document.getElementById('main-page').classList.remove('hidden');
-        if (localStorage.getItem('isAdmin') === 'true') {
-          document.getElementById('create-room-btn').classList.add('visible');
-        } else {
-          document.getElementById('create-room-btn').classList.remove('visible');
-        }
         initWebSocket();
         loadRooms();
         updateSummaryPreview();
@@ -38,17 +32,12 @@ async function login() {
     Store.saveAuth(data);
     document.getElementById('login-page').classList.add('hidden');
     document.getElementById('main-page').classList.remove('hidden');
-    if (data.isAdmin) {
-      document.getElementById('create-room-btn').classList.add('visible');
-    } else {
-      document.getElementById('create-room-btn').classList.remove('visible');
-    }
     initWebSocket();
     loadRooms();
     updateSummaryPreview();
     initSwipeGestures();
   } else {
     const err = await res.json();
-    document.getElementById('login-error').textContent = err.error || '登录失败';
+    document.getElementById('login-error').textContent = err.error || '\u767b\u5f55\u5931\u8d25';
   }
 }
diff --git a/server/public/js/purchases.js b/server/public/js/purchases.js
index 2290d0f..25ec6c1 100644
--- a/server/public/js/purchases.js
+++ b/server/public/js/purchases.js
@@ -22,7 +22,7 @@ function renderPurchasePanel(items) {
   Object.keys(groups).sort().reverse().forEach(month => {
     const monthItems = groups[month];
     const monthTotal = monthItems.reduce((s, i) => s + (i.amount||0), 0);
-    html += '<div class="purchase-month-group"><div class="purchase-month-header"><span>' + month + '</span><span>' + monthTotal + '</span></div>';
+    html += '<details class="purchase-month-group" open><summary class="purchase-month-header"><span>' + month + '</span><span>￥' + monthTotal + '</span></summary>';
     monthItems.forEach(item => {
       const timeShort = item.created_at.split(' ')[1]?.substring(0,5) || '';
       const dateShort = item.created_at.split(' ')[0]?.substring(5) || '';
@@ -31,12 +31,12 @@ function renderPurchasePanel(items) {
           <div class="item-main"><span class="item-name">${escapeHtml(item.item)}</span><span class="item-amount">${item.amount}</span></div>
           <div class="item-meta">
             <span>${dateShort} ${timeShort}</span>
-            <span>${item.quantity} ${item.invoice_type !== '无票' ? '\u00b7 ' + item.invoice_type : ''}</span>
+            <span>x${item.quantity} ${item.invoice_type !== '无票' ? '· ' + item.invoice_type : ''}</span>
             <span class="status-badge ${item.status==='已完成'?'done':''}">${item.status}</span>
           </div>
         </div>`;
     });
-    html += '</div>';
+    html += '</details>';
   });
   container.innerHTML = html;
 }
@@ -279,12 +279,17 @@ async function openSummary() {
 
 function closeSummaryModal() { document.getElementById('summary-modal').classList.add('hidden'); }
 
-function openCreateRoom() { document.getElementById('create-modal').classList.remove('hidden'); }
+function openCreateRoom() {
+  document.getElementById('create-modal').classList.remove('hidden');
+  const isAdmin = localStorage.getItem('isAdmin') === 'true';
+  document.getElementById('white-list').style.display = isAdmin ? '' : 'none';
+}
 function closeCreateModal() { document.getElementById('create-modal').classList.add('hidden'); }
 async function confirmCreateRoom() {
   const name = document.getElementById('new-room-name').value.trim();
-  if (!name) return alert('\u8bf7\u8f93\u5165\u540d\u79f0');
-  const whiteList = document.getElementById('white-list').value.trim();
+  if (!name) return alert('请输入名称');
+  const isAdmin = localStorage.getItem('isAdmin') === 'true';
+  const whiteList = isAdmin ? document.getElementById('white-list').value.trim() : localStorage.getItem('currentUser');
   const token = Store.getToken();
   await fetch('/api/rooms', { method: 'POST', headers: { 'Authorization': 'Bearer ' + token, 'Content-Type': 'application/json' }, body: JSON.stringify({ name, whiteList }) });
   closeCreateModal();
@@ -294,9 +299,11 @@ async function confirmCreateRoom() {
 function openManageRoom(roomId) {
   const room = Store.rooms.find(r => r.id === roomId);
   if (!room) return;
-  document.getElementById('manage-title').textContent = '\u7f16\u8f91\u7fa4\u804a';
+  const isAdmin = localStorage.getItem('isAdmin') === 'true';
+  document.getElementById('manage-title').textContent = '编辑群聊';
   document.getElementById('manage-room-name').value = room.name;
   document.getElementById('manage-white-list').value = room.white_list || '';
+  document.getElementById('manage-white-list').style.display = isAdmin ? '' : 'none';
   document.getElementById('manage-modal').dataset.roomId = roomId;
   document.getElementById('manage-modal').classList.remove('hidden');
 }
@@ -306,15 +313,16 @@ function closeManageModal() { document.getElementById('manage-modal').classList.
 async function saveRoom() {
   const roomId = document.getElementById('manage-modal').dataset.roomId;
   const name = document.getElementById('manage-room-name').value.trim();
-  const whiteList = document.getElementById('manage-white-list').value.trim();
-  if (!name) return alert('\u8bf7\u8f93\u5165\u7fa4\u804a\u540d\u79f0');
+  const isAdmin = localStorage.getItem('isAdmin') === 'true';
+  const whiteList = isAdmin ? document.getElementById('manage-white-list').value.trim() : undefined;
+  if (!name) return alert('请输入群聊名称');
   const token = Store.getToken();
   const res = await fetch('/api/rooms/' + roomId, {
     method: 'PUT', headers: { 'Authorization': 'Bearer ' + token, 'Content-Type': 'application/json' },
     body: JSON.stringify({ name, whiteList })
   });
   if (res.ok) { closeManageModal(); loadRooms(); }
-  else { const err = await res.json(); alert(err.error || '\u66f4\u65b0\u5931\u8d25'); }
+  else { const err = await res.json(); alert(err.error || '更新失败'); }
 }
 
 async function deleteRoom() {
diff --git a/server/routes/rooms.js b/server/routes/rooms.js
index 1eaa9c8..fafb011 100644
--- a/server/routes/rooms.js
+++ b/server/routes/rooms.js
@@ -15,7 +15,7 @@ router.get('/', authMiddleware, (req, res) => {
   if (isAdmin) {
     rooms = db.prepare('SELECT * FROM rooms').all();
   } else {
-    rooms = db.prepare("SELECT * FROM rooms WHERE white_list = '' OR (',' || white_list || ',' LIKE ?)").all(`%,${username},%`);
+    rooms = db.prepare("SELECT * FROM rooms WHERE white_list = '' OR (',' || white_list || ',' LIKE ?)").all('%,' + username + ',%');
   }
   const result = rooms.map(room => {
     const lastMsg = db.prepare('SELECT text, timestamp FROM messages WHERE room_id = ? ORDER BY id DESC LIMIT 1').get(room.id);
@@ -24,22 +24,28 @@ router.get('/', authMiddleware, (req, res) => {
   res.json(result);
 });
 
-router.post('/', authMiddleware, adminOnly, (req, res) => {
+// 普通用户可新建，白名单自动设为用户名
+router.post('/', authMiddleware, (req, res) => {
   const { name, whiteList } = req.body;
+  const isAdmin = req.user.isAdmin;
+  const finalWhiteList = isAdmin ? (whiteList || '') : req.user.username;
   const id = uuidv4();
   const now = timestamp();
-  db.prepare('INSERT INTO rooms (id, name, created_by, white_list, created_at) VALUES (?,?,?,?,?)').run(id, name, req.user.username, whiteList || '', now);
-  broadcast({ type: 'room_created', room: { id, name, white_list: whiteList || '' } });
+  db.prepare('INSERT INTO rooms (id, name, created_by, white_list, created_at) VALUES (?,?,?,?,?)').run(id, name, req.user.username, finalWhiteList, now);
+  broadcast({ type: 'room_created', room: { id, name, white_list: finalWhiteList } });
   res.json({ id, name });
 });
 
-router.put('/:roomId', authMiddleware, adminOnly, (req, res) => {
+// 普通用户可编辑名称，白名单不变
+router.put('/:roomId', authMiddleware, (req, res) => {
   const { name, whiteList } = req.body;
   const roomId = req.params.roomId;
+  const isAdmin = req.user.isAdmin;
   const room = db.prepare('SELECT * FROM rooms WHERE id = ?').get(roomId);
   if (!room) return res.status(404).json({ error: '群聊不存在' });
-  db.prepare('UPDATE rooms SET name = ?, white_list = ? WHERE id = ?').run(name, whiteList || '', roomId);
-  broadcast({ type: 'room_updated', room: { id: roomId, name, white_list: whiteList || '' } });
+  const finalWhiteList = isAdmin ? (whiteList !== undefined ? whiteList : room.white_list) : room.white_list;
+  db.prepare('UPDATE rooms SET name = ?, white_list = ? WHERE id = ?').run(name, finalWhiteList, roomId);
+  broadcast({ type: 'room_updated', room: { id: roomId, name, white_list: finalWhiteList } });
   res.json({ success: true });
 });