开店第三页银行卡号：只允许数字，最多 19 位；校验仍为 16–19 位。

门店详情 / 开店页：去掉顶栏返回与标题空白，内容上顶，顶部约 12px，与「门店管理」一致。
开店第一页底部：在「下一步」左侧加了「返回」（回门店列表）；第 2、3 步仍是「上一步」。

apps/h5-partner/src/pages/StoreCreatePage.tsx

@@ -2,8 +2,6 @@ import { useEffect, useMemo, useRef, useState } from 'react';
 
 import { useNavigate, useSearchParams } from 'react-router-dom';
 
-import PageHeader from '@dukang/shared-ui/PageHeader';
-
 import ChinaRegionPicker from '../components/ChinaRegionPicker';
 
 import OssUploadField from '../components/OssUploadField';
@@ -576,11 +574,7 @@ export default function StoreCreatePage() {
 
   return (
 
-    <div className="partner-page-sticky">
+    <div className="partner-page-sticky partner-home--flush-top">
-
-      <PageHeader title="录入新门店" onBack={() => navigate('/stores')} />
-
-
 
       <nav className="partner-stepper">
 
@@ -980,7 +974,15 @@ export default function StoreCreatePage() {
 
               <label>银行卡号 *</label>
 
-              <input className="partner-field-input partner-field-input--block" placeholder="请输入16-19位银行卡号" value={form.bankAccountNo} onChange={(e) => patchForm({ bankAccountNo: e.target.value })} />
+              <input
+                className="partner-field-input partner-field-input--block"
+                inputMode="numeric"
+                autoComplete="cc-number"
+                maxLength={19}
+                placeholder="请输入16-19位银行卡号"
+                value={form.bankAccountNo}
+                onChange={(e) => patchForm({ bankAccountNo: e.target.value.replace(/\D/g, '').slice(0, 19) })}
+              />
 
             </div>
 
@@ -1116,7 +1118,11 @@ export default function StoreCreatePage() {
 
       <footer className="partner-sticky-footer">
 
-        {step > 1 && (
+        {step === 1 ? (
+
+          <button type="button" className="partner-btn-outline" onClick={() => navigate('/stores')} disabled={nextDisabled}>返回</button>
+
+        ) : (
 
           <button type="button" className="partner-btn-outline" onClick={() => goStep(step - 1)} disabled={nextDisabled}>上一步</button>
 

apps/h5-partner/src/pages/StoreDetailPage.tsx

@@ -1,6 +1,5 @@
 import { useEffect, useState } from 'react';
 import { useNavigate, useParams } from 'react-router-dom';
-import PageHeader from '@dukang/shared-ui/PageHeader';
 import AppImage from '@dukang/shared-ui/AppImage';
 import { request } from '../lib/api';
 import { toastSuccess } from '../lib/toast';
@@ -199,8 +198,7 @@ export default function StoreDetailPage() {
 
   if (loadError) {
     return (
-      <div className="partner-detail-page">
+      <div className="partner-detail-page partner-home--flush-top">
-        <PageHeader title="门店详情" onBack={() => navigate('/stores')} />
         <div className="empty">{loadError}</div>
       </div>
     );
@@ -222,10 +220,8 @@ export default function StoreDetailPage() {
   const canOpen = canPartnerOpenStore(auditStatus);
 
   return (
-    <div className="partner-detail-page">
+    <div className="partner-detail-page partner-home--flush-top">
-      <PageHeader title="门店详情" onBack={() => navigate('/stores')} />
+      <main style={{ padding: '12px 20px 16px' }}>
-
-      <main style={{ padding: '16px 20px' }}>
         {actionError && <p className="partner-form-error" role="alert" style={{ marginBottom: 12 }}>{actionError}</p>}
 
         <section className="partner-form-card" style={{ margin: '0 0 16px' }}>

apps/h5-partner/src/styles.css

@@ -3329,10 +3329,16 @@ body {
 }
 
 .partner-home--flush-top.partner-store-page,
-.partner-home--flush-top.partner-center-page {
+.partner-home--flush-top.partner-center-page,
+.partner-home--flush-top.partner-detail-page,
+.partner-home--flush-top.partner-page-sticky {
   padding-top: 12px;
 }
 
+.partner-home--flush-top.partner-page-sticky .partner-stepper {
+  padding-top: 4px;
+}
+
 .partner-home--flush-top .partner-sticky-filter {
   padding-top: 12px;
 }