diff --git a/works/ai-chat-app/www/app.js b/works/ai-chat-app/www/app.js
index f328b55..1c85822 100644
--- a/works/ai-chat-app/www/app.js
+++ b/works/ai-chat-app/www/app.js
@@ -116,6 +116,13 @@ async function loadBackendConfig() {
       };
     }
     
+    // 加载LLM能力配置（思考模式、视觉能力）
+    if (backendConfig.llm) {
+      llmCapabilities.thinking = backendConfig.llm.enable_thinking === 1;
+      llmCapabilities.vision = backendConfig.llm.enable_vision === 1;
+      console.log('LLM能力: 思考模式=', llmCapabilities.thinking, '视觉=', llmCapabilities.vision);
+    }
+    
     updateAgentsDisplay();
     console.log('后台配置已加载', backendConfig);
   } catch (e) {
@@ -283,6 +290,12 @@ let enableThinking = false;  // 深度思考
 let enableSearch = false;    // 联网搜索
 let autoScrollEnabled = true;  // 自动滚动（用户滚动后可关闭）
 
+// LLM 能力标志（从后台配置加载）
+let llmCapabilities = {
+  thinking: false,  // 是否支持思考模式
+  vision: false     // 是否支持视觉能力
+};
+
 // DOM 元素（初始为 null，在 openConversation 时重新获取）
 let appContainer = null;
 let messagesContainer = null;
@@ -2917,10 +2930,12 @@ function showAgentChatPage() {
       <!-- 功能开关栏 -->
       <div class="feature-bar" id="featureBar">
         <div class="feature-left">
+          ${llmCapabilities.thinking ? `
           <button class="feature-btn thinking-btn" id="thinkingBtn">
             <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z"/></svg>
             <span>深度思考</span>
           </button>
+          ` : ''}
           <button class="feature-btn search-btn" id="searchBtn">
             <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 7 9.5 7 14 9.01 14 9.5 11.99 14 9.5 14z"/></svg>
             <span>联网搜索</span>
@@ -2940,7 +2955,7 @@ function showAgentChatPage() {
         <button class="attach-btn" id="attachBtn" title="上传文件">
           <svg viewBox="0 0 24 24" width="24" height="24"><path fill="currentColor" d="M19 13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/></svg>
         </button>
-        <textarea id="userInput" placeholder="输入消息..." rows="1"></textarea>
+        <textarea id="userInput" placeholder="${llmCapabilities.vision ? '输入消息或上传图片...' : '输入消息...'}" rows="1"></textarea>
         <button class="send-btn" id="sendBtn">
           <svg viewBox="0 0 24 24" width="24" height="24"><path fill="currentColor" d="M2.01 21L23 12 2.01 3 2 10l15 2-15 2z"/></svg>
         </button>
@@ -2949,10 +2964,12 @@ function showAgentChatPage() {
       <!-- 上传选项弹窗 -->
       <div class="attach-panel" id="attachPanel">
         <div class="attach-panel-content">
+          ${llmCapabilities.vision ? `
           <div class="attach-item" data-type="image">
             <div class="attach-icon">📷</div>
             <div class="attach-label">上传图片</div>
           </div>
+          ` : ''}
           <div class="attach-item" data-type="file">
             <div class="attach-icon">📄</div>
             <div class="attach-label">上传文件</div>
@@ -3385,10 +3402,12 @@ function openConversation(id) {
       <!-- 功能开关栏 -->
       <div class="feature-bar">
         <div class="feature-left">
+          ${llmCapabilities.thinking ? `
           <button class="feature-btn thinking-btn ${enableThinking ? 'active' : ''}" id="thinkingBtn">
             <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z"/></svg>
             <span>深度思考</span>
           </button>
+          ` : ''}
           <button class="feature-btn search-btn ${enableSearch ? 'active' : ''}" id="searchBtn">
             <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 7 9.5 7 14 9.01 14 9.5 11.99 14 9.5 14z"/></svg>
             <span>联网搜索</span>
@@ -3410,7 +3429,7 @@ function openConversation(id) {
         </button>
         <textarea 
           id="userInput" 
-          placeholder="输入消息..." 
+          placeholder="${llmCapabilities.vision ? '输入消息或上传图片...' : '输入消息...'}" 
           rows="1"
         ></textarea>
         <button class="send-btn" id="sendBtn">
@@ -3421,10 +3440,12 @@ function openConversation(id) {
       <!-- 上传选项弹窗 -->
       <div class="attach-panel" id="attachPanel">
         <div class="attach-panel-content">
+          ${llmCapabilities.vision ? `
           <div class="attach-item" data-type="image">
             <div class="attach-icon">📷</div>
             <div class="attach-label">上传图片</div>
           </div>
+          ` : ''}
           <div class="attach-item" data-type="file">
             <div class="attach-icon">📄</div>
             <div class="attach-label">上传文件</div>
@@ -4286,6 +4307,13 @@ async function handleImageUpload(e) {
   const file = e.target.files[0];
   if (!file) return;
   
+  // 检查是否支持视觉能力
+  if (!llmCapabilities.vision) {
+    showToast('当前大模型不支持图片分析功能，请等待后期升级');
+    e.target.value = '';
+    return;
+  }
+  
   // 读取图片为base64
   const reader = new FileReader();
   reader.onload = async (event) => {