diff --git a/wwwroot/api/contract_attach.ui b/wwwroot/api/contract_attach.ui
index 05cd319..ca8f553 100644
--- a/wwwroot/api/contract_attach.ui
+++ b/wwwroot/api/contract_attach.ui
@@ -14,86 +14,28 @@
     },
     "subwidgets": [
         {
-            "widgettype": "HBox",
+            "widgettype": "Title4",
             "options": {
-                "alignItems": "center",
-                "marginBottom": "12px"
-            },
-            "subwidgets": [
-                {
-                    "widgettype": "Title4",
-                    "options": {
-                        "fontWeight": "600",
-                        "otext": "合同附件",
-                        "i18n": true
-                    }
-                },
-                {
-                    "widgettype": "Filler"
-                }
-            ]
+                "fontWeight": "600",
+                "otext": "合同附件",
+                "i18n": true,
+                "marginBottom": "8px"
+            }
         },
         {
-            "widgettype": "VBox",
-            "id": "drop_zone",
+            "widgettype": "Form",
+            "id": "upload_form",
             "options": {
-                "css": "card",
-                "width": "100%",
-                "height": "80px",
-                "padding": "16px",
-                "bgcolor": "#1E293B",
-                "border": "2px dashed #475569",
-                "borderRadius": "8px",
-                "alignItems": "center",
-                "justifyContent": "center",
-                "marginBottom": "12px"
-            },
-            "subwidgets": [
-                {
-                    "widgettype": "Text",
-                    "options": {
-                        "otext": "拖拽文件到此处上传，或点击选择文件",
-                        "i18n": true,
-                        "color": "#94A3B8",
-                        "fontSize": "13px"
-                    }
-                },
-                {
-                    "widgettype": "Form",
-                    "id": "upload_form",
-                    "options": {
-                        "fields": [
-                            {"name": "folderid", "uitype": "hide", "value": "{{folder}}"},
-                            {"name": "fiid", "uitype": "hide", "value": "{{fiid}}"},
-                            {"name": "upfile", "uitype": "file", "label": ""}
-                        ]
-                    },
-                    "binds": [{
-                        "wid": "self",
-                        "event": "submited",
-                        "actiontype": "urlwidget",
-                        "target": "self",
-                        "options": {
-                            "url": "{{entire_url('/filemgr/upload_file.dspy')}}"
-                        }
-                    }]
-                }
-            ],
-            "binds": [{
-                "wid": "self",
-                "event": "click",
-                "actiontype": "method",
-                "target": "upload_form",
-                "method": "select_file"
-            }]
-        },
-        {
-            "widgettype": "Script",
-            "id": "drop_handler",
-            "options": {
-                "script": "var dz=document.querySelector('#drop_zone'); if(dz){dz.addEventListener('dragover',function(e){e.preventDefault();e.stopPropagation();this.style.borderColor='#3B82F6';});dz.addEventListener('dragleave',function(e){e.preventDefault();e.stopPropagation();this.style.borderColor='#475569';});dz.addEventListener('drop',function(e){e.preventDefault();e.stopPropagation();this.style.borderColor='#475569';var dt=e.dataTransfer;if(!dt.files.length)return;var fi=bricks.app.getWidgetById('upload_form');if(fi&&fi.widgets&&fi.widgets[2]){fi.widgets[2].files=dt.files;fi.widgets[2]._onchange();}});}"
-            },
-            "binds": []
+                "submit_url": "{{entire_url('/filemgr/upload_file.dspy')}}",
+                "fields": [
+                    {"name": "folderid", "uitype": "hide", "value": "{{folder}}"},
+                    {"name": "fiid", "uitype": "hide", "value": "{{fiid}}"},
+                    {"name": "upfile", "uitype": "file", "multiple": true, "label": "选择文件"}
+                ],
+                "buttons": [
+                    {"name": "submit", "label": "上传", "css": "primary"}
+                ]
+            }
         },
         {
             "widgettype": "Tabular",
@@ -111,8 +53,8 @@
                         "cwidth": {}
                     },
                     "fields": [
-                        {"name": "filename", "title": "文件名", "type": "str", "uitype": "str", "label": "文件名", "cwidth": 30},
-                        {"name": "filesize", "title": "大小(bytes)", "type": "int", "uitype": "int", "label": "大小", "cwidth": 10},
+                        {"name": "filename", "title": "文件名", "type": "str", "uitype": "str", "label": "文件名", "cwidth": 28},
+                        {"name": "filesize", "title": "大小(KB)", "type": "str", "uitype": "str", "label": "大小", "cwidth": 10},
                         {"name": "filetype", "title": "类型", "type": "str", "uitype": "str", "label": "类型", "cwidth": 8}
                     ]
                 }