diff --git a/jjb.config.js b/jjb.config.js
index be646be..8c58ad4 100644
--- a/jjb.config.js
+++ b/jjb.config.js
@@ -10,7 +10,7 @@ module.exports = {
       javaGitBranch: "dev",
       // 本地联调 safetyEval-service（context-path: /safetyEval，默认端口 8095）
       // 可通过环境变量覆盖: SAFETY_EVAL_API_HOST=http://192.168.x.x:8095
-      API_HOST:  "http://127.0.0.1",
+      API_HOST:  "http://192.168.0.152",
     },
     production: {
       // 应用后端分支名称，部署上线需要
diff --git a/src/components/AttachmentUpload/index.js b/src/components/AttachmentUpload/index.js
index ba0c2dc..a3da783 100644
--- a/src/components/AttachmentUpload/index.js
+++ b/src/components/AttachmentUpload/index.js
@@ -1,10 +1,10 @@
-import { Form, Image, Upload } from "antd";
+import { Form, Image, Upload, message } from "antd";
 import { useState } from "react";
 import { PlusOutlined } from "@ant-design/icons";
 const isImage = (url) =>
   /\.(png|jpe?g|gif|bmp|webp|svg)(\?.*)?$/i.test(url || "");
 
-export default function AttachmentUpload({ name, label, disabled = false, maxCount, accept }) {
+export default function AttachmentUpload({ name, label, disabled = false, maxCount, accept, extra  }) {
   const [previewImage, setPreviewImage] = useState("");
 
   return (
@@ -12,6 +12,7 @@ export default function AttachmentUpload({ name, label, disabled = false, maxCou
       <Form.Item
         name={name}
         label={label}
+        extra={extra}
         valuePropName="fileList"
         getValueProps={(value) => {
           if (Array.isArray(value)) {
@@ -56,6 +57,16 @@ export default function AttachmentUpload({ name, label, disabled = false, maxCou
           maxCount={maxCount}
           accept={accept}
           action={`${window.process.env.app.API_HOST}/safetyEval/file/upload`}
+          beforeUpload={(file) => {
+            if (!accept) return true;
+            const exts = accept.split(",").map((e) => e.trim().toLowerCase());
+            const ext = "." + file.name.split(".").pop().toLowerCase();
+            if (!exts.includes(ext)) {
+              message.error(`仅支持 ${accept} 格式文件`);
+              return Upload.LIST_IGNORE;
+            }
+            return true;
+          }}
           onPreview={(file) => {
             if (isImage(file.url || file.thumbUrl)) {
               setPreviewImage(file.url || file.thumbUrl);
diff --git a/src/pages/Container/QualApplication/FilingForm/components/BasicInfoStep.jsx b/src/pages/Container/QualApplication/FilingForm/components/BasicInfoStep.jsx
index 00ffa23..e6be10a 100644
--- a/src/pages/Container/QualApplication/FilingForm/components/BasicInfoStep.jsx
+++ b/src/pages/Container/QualApplication/FilingForm/components/BasicInfoStep.jsx
@@ -130,6 +130,8 @@ export default function BasicInfoStep({ form, disabled }) {
             name="attachmentUrl"
             label="上传附件"
             disabled={disabled}
+            maxCount={12}
+            accept=".pdf,.doc,.docx"
           />
         </Col>
       </Row>
diff --git a/src/pages/Container/QualApplication/FilingForm/components/CommitmentStep.jsx b/src/pages/Container/QualApplication/FilingForm/components/CommitmentStep.jsx
index 58a224d..7f74fe6 100644
--- a/src/pages/Container/QualApplication/FilingForm/components/CommitmentStep.jsx
+++ b/src/pages/Container/QualApplication/FilingForm/components/CommitmentStep.jsx
@@ -121,6 +121,7 @@ export default function CommitmentStep({
           </Col>
         </Row>
         <AttachmentUpload
+          extra="请上传一张电子签名图片"
           name="legalRepSignatureUrl"
           label="电子签名"
           disabled={disabled}