diff --git a/wwwroot/index.ui b/wwwroot/index.ui
index eebdc86..6376206 100644
--- a/wwwroot/index.ui
+++ b/wwwroot/index.ui
@@ -106,90 +106,15 @@
             "binds": []
         },
         {
-            "widgettype": "VBox",
+            "widgettype": "AgentIO",
+            "id": "chat_io",
             "options": {
                 "css": "filler",
-                "width": "100%",
-                "height": "100%",
-                "padding": "0 24px 0 24px",
-                "gap": "0"
-            },
-            "subwidgets": [
-                {
-                    "widgettype": "AgentIO",
-                    "id": "chat_scroll",
-                    "options": {
-                        "css": "filler",
-                        "width": "100%",
-                        "height": "100%",
-                        "bgcolor": "#f8fafc",
-                        "border": "1px solid #e2e8f0",
-                        "borderBottom": "none",
-                        "borderRadius": "8px 8px 0 0",
-                        "padding": "16px",
-                        "url": "/pipeline-sdlc/api/cockpit_chat.dspy"
-                    },
-                    "subwidgets": [
-                        {
-                            "widgettype": "VBox",
-                            "options": {
-                                "alignItems": "center",
-                                "padding": "40px 0",
-                                "gap": "12px"
-                            },
-                            "subwidgets": [
-                                {
-                                    "widgettype": "Text",
-                                    "options": {
-                                        "text": "选择一个迭代后，在下方输入你的需求。",
-                                        "cfontsize": 1,
-                                        "color": "#64748b"
-                                    }
-                                },
-                                {
-                                    "widgettype": "Text",
-                                    "options": {
-                                        "text": "Agent 将自动分析需求、生成设计、驱动产线执行。",
-                                        "cfontsize": 0.85,
-                                        "color": "#94a3b8"
-                                    }
-                                }
-                            ]
-                        }
-                    ],
-                    "binds": []
-                },
-                {
-                    "widgettype": "VBox",
-                    "options": {
-                        "bgcolor": "#fff",
-                        "border": "1px solid #e2e8f0",
-                        "borderTop": "none",
-                        "borderRadius": "0 0 8px 8px",
-                        "padding": "0"
-                    },
-                    "subwidgets": [
-                        {
-                            "widgettype": "AgentIO",
-                            "id": "chat_input",
-                            "options": {
-                                "placeholder": "输入你的需求...",
-                                "model_dataurl": "/pipeline-sdlc/api/cockpit_model_options.dspy",
-                                "model_cwidth": 14
-                            },
-                            "binds": [
-                                {
-                                    "wid": "self",
-                                    "event": "inputed",
-                                    "actiontype": "script",
-                                    "target": "self",
-                                    "script": "var p=params.prompt;var mid=params.model_id||'';if(typeof mid==='object'&&mid!==null)mid=mid.model_id||'';var ctx=bricks.getWidgetById('context_data',bricks.app);var cd=ctx?ctx.getValue():{};var iid=cd.iteration_id||'';var pid=cd.project_id||'';var fnames=params.file_names||[];var chat=bricks.getWidgetById('chat_scroll',bricks.app);var at=null;if(chat){var ub=new bricks.HBox({width:'100%'});var um=new bricks.VBox({width:'85%',alignSelf:'flex-end',bgcolor:'#dbeafe',borderRadius:'12px',padding:'12px 16px',marginBottom:'10px',gap:'4px'});um.add_widget(new bricks.Text({text:'你',cfontsize:0.75,color:'#2563eb',fontWeight:'bold'}));um.add_widget(new bricks.Text({text:p,cfontsize:0.95,color:'#1e293b',whiteSpace:'pre-wrap'}));ub.add_widget(new bricks.VBox({css:'filler'}));ub.add_widget(um);ub.add_widget(new bricks.Svg({rate:2,url:bricks_resource('imgs/chat-user.svg')}));chat.add_widget(ub);var ab=new bricks.HBox({width:'100%'});var am=new bricks.VBox({width:'85%',alignSelf:'flex-start',bgcolor:'#e8f0fe',borderRadius:'12px',padding:'12px 16px',marginBottom:'10px',gap:'4px'});am.add_widget(new bricks.Text({text:'Agent',cfontsize:0.75,color:'#3b82f6',fontWeight:'bold'}));at=new bricks.Text({text:'正在分析需求...',cfontsize:0.85,color:'#64748b'});am.add_widget(at);ab.add_widget(new bricks.Svg({rate:2,url:bricks_resource('imgs/llm.svg')}));ab.add_widget(am);ab.add_widget(new bricks.VBox({css:'filler'}));chat.add_widget(ab);}var fd=new FormData();fd.append('action','send_message');fd.append('message_text',p);fd.append('model_id',mid);fd.append('iteration_id',iid);fd.append('project_id',pid);fd.append('file_paths',JSON.stringify(fnames));fetch('/pipeline-sdlc/api/cockpit_chat.dspy',{method:'POST',body:fd}).then(function(r){return r.json()}).then(function(r){if(r.success){if(at)at.set_text(r.agent_reply||'已处理');var s=bricks.getWidgetById('stats_row',bricks.app);if(s)s.render({});}else{if(at)at.set_text('错误: '+(r.error||'未知错误'));}}).catch(function(e){if(at)at.set_text('网络错误: '+e.message);});"
-                                }
-                            ]
-                        }
-                    ]
-                }
-            ]
+                "url": "/pipeline-sdlc/api/cockpit_chat.dspy",
+                "model_dataurl": "/pipeline-sdlc/api/cockpit_model_options.dspy",
+                "model_cwidth": 14,
+                "placeholder": "输入你的需求..."
+            }
         }
     ]
 }
\ No newline at end of file