diff --git a/src/pages/TaskAssistant.tsx b/src/pages/TaskAssistant.tsx
index 3de904f..5b0ee48 100644
--- a/src/pages/TaskAssistant.tsx
+++ b/src/pages/TaskAssistant.tsx
@@ -1,8 +1,8 @@
 import { useState, useRef, useEffect, useCallback } from 'react'
-import { Input, Button, Avatar, theme, Typography, App, Collapse } from 'antd'
+import { Input, Button, Avatar, theme, Typography, App } from 'antd'
 import {
   SendOutlined, RobotOutlined, UserOutlined, PlusOutlined,
-  DeleteOutlined, StopOutlined, MessageOutlined, BulbOutlined, ToolOutlined, LoadingOutlined,
+  DeleteOutlined, StopOutlined, MessageOutlined,
 } from '@ant-design/icons'
 import { streamChat, type StreamEvent } from '@/services/ai-chat'
 import {
@@ -18,8 +18,6 @@ interface Message {
   role: 'user' | 'assistant'
   content: string
   timestamp: number
-  thinking?: string
-  toolCalls?: { name: string; result?: string }[]
   streaming?: boolean
 }
 
@@ -103,8 +101,6 @@ function ChatPage() {
     setMessages(prev => [...prev, streamMsg])
 
     let currentContent = ''
-    let currentThinking = ''
-    const currentTools: { name: string; result?: string }[] = []
     let completedConvId: string | undefined
 
     const update = (updates: Partial<Message>) =>
@@ -118,25 +114,12 @@ function ChatPage() {
           switch (event.event) {
             case 'meta':
               completedConvId = event.conversationId
-              if (event.conversationId && event.conversationId !== activeId) {
-                setActiveId(event.conversationId); loadConversations()
-              }
+              if (event.conversationId && event.conversationId !== activeId) { setActiveId(event.conversationId); loadConversations() }
               break
             case 'message.delta':
               currentContent += event.delta || ''
               update({ content: currentContent, streaming: true })
               break
-            case 'reasoning.available':
-              currentThinking = event.text || ''
-              update({ thinking: currentThinking })
-              break
-            case 'tool.start':
-              currentTools.push({ name: event.toolName || 'unknown' })
-              update({ toolCalls: [...currentTools] })
-              break
-            case 'tool.result':
-              if (currentTools.length > 0) { currentTools[currentTools.length - 1].result = event.output || ''; update({ toolCalls: [...currentTools] }) }
-              break
             case 'run.completed':
               if (event.output) currentContent = event.output
               update({ content: currentContent, streaming: false })
@@ -164,7 +147,6 @@ function ChatPage() {
 
   return (
     <div style={{ display: 'flex', height: 'calc(100vh - 112px)', gap: 12 }}>
-      {/* Sidebar */}
       <div style={{ width: 260, flexShrink: 0, display: 'flex', flexDirection: 'column', background: token.colorBgContainer, borderRadius: token.borderRadiusLG, border: `1px solid ${token.colorBorderSecondary}`, overflow: 'hidden' }}>
         <div style={{ padding: 12, borderBottom: `1px solid ${token.colorBorderSecondary}` }}>
           <Button type="primary" icon={<PlusOutlined />} block onClick={handleNew}>新对话</Button>
@@ -190,14 +172,13 @@ function ChatPage() {
         </div>
       </div>
 
-      {/* Chat */}
       <div style={{ flex: 1, display: 'flex', flexDirection: 'column', minWidth: 0 }}>
         <div style={{ flex: 1, overflowY: 'auto', background: token.colorBgContainer, borderRadius: `${token.borderRadiusLG}px ${token.borderRadiusLG}px 0 0`, padding: '20px 24px', border: `1px solid ${token.colorBorderSecondary}`, borderBottom: 'none' }}>
           {messages.length === 0 && (
             <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'center', justifyContent: 'center', height: '100%' }}>
               <RobotOutlined style={{ fontSize: 48, marginBottom: 16, color: token.colorTextQuaternary }} />
               <Text type="secondary" style={{ fontSize: 16 }}>{activeId ? '开始新对话' : '点击「新对话」开始'}</Text>
-              <Text type="secondary" style={{ fontSize: 13, marginTop: 8 }}>Hermes Agent · 流式响应 · 思考过程可见</Text>
+              <Text type="secondary" style={{ fontSize: 13, marginTop: 8 }}>Hermes Agent · 流式响应 · xhigh 推理</Text>
             </div>
           )}
 
@@ -206,31 +187,11 @@ function ChatPage() {
               <Avatar size={32} icon={msg.role === 'user' ? <UserOutlined /> : <RobotOutlined />}
                 style={{ backgroundColor: msg.role === 'user' ? token.colorPrimary : token.colorSuccess, flexShrink: 0 }} />
               <div style={{ maxWidth: '75%', minWidth: 0 }}>
-                {/* Thinking — auto expand during streaming */}
-                {msg.thinking && msg.thinking !== msg.content && (
-                  <Collapse size="small" ghost defaultActiveKey={[]} items={[{
-                    key: 'thinking', label: <Text style={{ fontSize: 12, color: token.colorTextSecondary }}><BulbOutlined /> 思考过程{msg.streaming ? <LoadingOutlined style={{ marginLeft: 6, fontSize: 11 }} spin /> : null}</Text>,
-                    children: <div style={{ fontSize: 13, color: token.colorTextSecondary, whiteSpace: 'pre-wrap', lineHeight: 1.7, maxHeight: 200, overflowY: 'auto', padding: '4px 0' }}>{msg.thinking}</div>,
-                  }]} style={{ marginBottom: 8, background: 'transparent' }} />
-                )}
-                {/* Tools */}
-                {msg.toolCalls && msg.toolCalls.length > 0 && (
-                  <Collapse size="small" ghost items={[{
-                    key: 'tools', label: <Text style={{ fontSize: 12, color: token.colorTextSecondary }}><ToolOutlined /> 工具调用 ({msg.toolCalls.length})</Text>,
-                    children: msg.toolCalls.map((t, i) => (
-                      <div key={i} style={{ marginBottom: 8, fontSize: 12 }}>
-                        <Text code style={{ fontSize: 12 }}>{t.name}</Text>
-                        {t.result && <div style={{ marginTop: 4, color: token.colorTextSecondary, maxHeight: 150, overflowY: 'auto', whiteSpace: 'pre-wrap' }}>{t.result}</div>}
-                      </div>
-                    )),
-                  }]} style={{ marginBottom: 8, background: 'transparent' }} />
-                )}
-                {/* Content */}
                 <div style={{ padding: '12px 16px', borderRadius: 12, lineHeight: 1.8, wordBreak: 'break-word', background: msg.role === 'user' ? token.colorPrimary : token.colorFillAlter, color: msg.role === 'user' ? '#fff' : token.colorText }}>
                   {msg.role === 'assistant'
                     ? (msg.content
                       ? <Markdown content={msg.content + (msg.streaming ? '▊' : '')} />
-                      : <Text type="secondary" style={{ fontSize: 13 }}><LoadingOutlined spin style={{ marginRight: 6 }} />思考中...</Text>)
+                      : <Text type="secondary" style={{ fontSize: 13 }}>思考中...</Text>)
                     : msg.content}
                 </div>
               </div>
@@ -239,23 +200,15 @@ function ChatPage() {
           <div ref={messagesEndRef} />
         </div>
 
-        {/* Input */}
         <div style={{ background: token.colorBgContainer, border: `1px solid ${token.colorBorderSecondary}`, borderRadius: `0 0 ${token.borderRadiusLG}px ${token.borderRadiusLG}px`, padding: '16px 20px' }}>
           <div style={{ display: 'flex', alignItems: 'flex-end', gap: 10, background: token.colorFillTertiary, borderRadius: 12, padding: '8px 8px 8px 14px', border: `1px solid ${token.colorBorderSecondary}` }}>
-            <Input.TextArea value={input}
-              onChange={e => setInput(e.target.value)}
+            <Input.TextArea value={input} onChange={e => setInput(e.target.value)}
               onCompositionStart={() => { composingRef.current = true }}
               onCompositionEnd={() => { composingRef.current = false }}
-              onKeyDown={e => {
-                if (composingRef.current) return
-                if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); handleSend() }
-              }}
-              placeholder={activeId ? '输入消息，Enter 发送，Shift+Enter 换行' : '请先新建或选择对话'}
-              autoSize={{ minRows: 1, maxRows: 5 }}
-              disabled={streaming || !activeId}
-              variant="borderless"
-              style={{ flex: 1, resize: 'none', padding: '4px 0', fontSize: 14 }}
-            />
+              onKeyDown={e => { if (composingRef.current) return; if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); handleSend() } }}
+              placeholder={activeId ? '输入消息，Enter 发送' : '请先新建或选择对话'}
+              autoSize={{ minRows: 1, maxRows: 5 }} disabled={streaming || !activeId}
+              variant="borderless" style={{ flex: 1, resize: 'none', padding: '4px 0', fontSize: 14 }} />
             {streaming ? (
               <Button danger type="primary" icon={<StopOutlined />} onClick={handleStop} style={{ borderRadius: 8, height: 34, minWidth: 72 }}>停止</Button>
             ) : (