diff --git a/wwwroot/knowledge_bases_list/detail.ui b/wwwroot/knowledge_bases_list/detail.ui
index 39f57a4..db74ce3 100644
--- a/wwwroot/knowledge_bases_list/detail.ui
+++ b/wwwroot/knowledge_bases_list/detail.ui
@@ -57,25 +57,23 @@
                     "subwidgets": [
                         {"widgettype": "Text", "options": {"text": "📂 请选择左侧目录查看文件", "cfontsize": 14, "color": "#888"}},
                         {
-                            "widgettype": "VBox",
+                            "widgettype": "Button",
                             "options": {
-                                "id": "upload_dropzone",
-                                "width": "100%",
-                                "cheight": 10,
-                                "bgcolor": "#f8f9fa",
-                                "padding": "24px",
-                                "css": "card",
-                                "border": "2px dashed #d0d0d0",
-                                "alignItems": "center",
-                                "justifyContent": "center",
-                                "marginTop": "16px"
+                                "label": "📤 上传文件",
+                                "bgcolor": "#3b82f6",
+                                "color": "#fff",
+                                "padding": "10px 24px",
+                                "marginTop": "16px",
+                                "cfontsize": 14
                             },
-                            "subwidgets": [
-                                {"widgettype": "Text", "options": {"text": "📂", "cfontsize": 32}},
-                                {"widgettype": "Text", "options": {"text": "拖拽文件到此处上传", "cfontsize": 16, "color": "#888"}},
-                                {"widgettype": "Text", "options": {"text": "支持: TXT, PDF, JPG, PNG, MP3, WAV, MP4, AVI", "cfontsize": 12, "color": "#aaa"}},
-                                {"widgettype": "Text", "options": {"text": "单个文件最大 500MB · 自动向量化入库", "cfontsize": 12, "color": "#aaa"}}
-                            ]
+                            "binds": [{
+                                "wid": "self",
+                                "event": "click",
+                                "actiontype": "urlwidget",
+                                "target": "app.rag_main_content",
+                                "mode": "replace",
+                                "options": {"url": "{{entire_url('./upload.dspy')}}?kb_id=kb1"}
+                            }]
                         }
                     ]
                 }
diff --git a/wwwroot/knowledge_bases_list/upload.dspy b/wwwroot/knowledge_bases_list/upload.dspy
index c447baf..b52e885 100644
--- a/wwwroot/knowledge_bases_list/upload.dspy
+++ b/wwwroot/knowledge_bases_list/upload.dspy
@@ -21,22 +21,18 @@ result = {
             },
             "subwidgets": [
                 {"widgettype": "Text", "options": {"text": "📂", "cfontsize": 40}},
-                {"widgettype": "Text", "options": {"text": "点击或拖拽文件到此处上传", "cfontsize": 16, "color": "#555"}},
-                {"widgettype": "Text", "options": {"text": "支持: TXT, PDF, JPG, PNG, MP3, WAV, MP4, AVI", "cfontsize": 12, "color": "#999"}},
-                {"widgettype": "Text", "options": {"text": "单个文件最大 500MB · 自动向量化入库", "cfontsize": 12, "color": "#999"}}
+                {"widgettype": "Text", "options": {"text": "点击选择文件上传", "cfontsize": 16, "color": "#555"}},
+                {"widgettype": "Text", "options": {"text": "支持: TXT, PDF, JPG, PNG, MP3, WAV, MP4", "cfontsize": 12, "color": "#999"}},
+                {"widgettype": "Button", "options": {"label": "选择文件", "bgcolor": "#3b82f6", "color": "#fff", "padding": "8px 20px", "marginTop": "12px"},
+                 "binds": [{"wid": "self", "event": "click", "actiontype": "script",
+                     "script": "var inp=document.createElement('input');inp.type='file';inp.onchange=function(e){var f=e.target.files[0];if(!f)return;var st=document.getElementById('status_text');if(st)st.innerText='上传中: '+f.name;var r=new XMLHttpRequest();r.open('POST','/api/doc/upload?kb_id=" + kb_id + "&file_name='+encodeURIComponent(f.name));r.onload=function(){if(st)st.innerText=r.status===200?'上传成功: '+f.name:'上传失败: HTTP '+r.status;location.reload()};r.send(f)};inp.click()"}]}
             ]
         },
         {
             "widgettype": "VBox",
-            "options": {
-                "id": "upload_status",
-                "width": "100%",
-                "padding": "12px",
-                "bgcolor": "#f0fdf4",
-                "border": "1px solid #86efac"
-            },
+            "options": {"id": "upload_status", "width": "100%", "padding": "12px", "bgcolor": "#f0fdf4", "border": "1px solid #86efac"},
             "subwidgets": [
-                {"widgettype": "Text", "options": {"text": "⏳ 等待上传...", "cfontsize": 13, "color": "#666", "id": "status_text"}}
+                {"widgettype": "Text", "options": {"text": "⏳ 选择文件开始上传", "cfontsize": 13, "color": "#666", "id": "status_text"}}
             ]
         }
     ]