diff --git a/pages/genealogy/g03-create-genealogy.vue b/pages/genealogy/g03-create-genealogy.vue
index 2bc757d..f37cadc 100644
--- a/pages/genealogy/g03-create-genealogy.vue
+++ b/pages/genealogy/g03-create-genealogy.vue
@@ -3,21 +3,11 @@
   <view class="flow-page">
     <GenealogyPageBackground />
 
-    <view class="flow-header">
-      <view class="flow-header__content">
-        <view class="flow-header__back" @click="goBack">
-          <image
-            class="flow-header__back-icon"
-            src="/static/assets/foundation/transparent/chevron-right.png"
-            mode="aspectFit"
-          />
-        </view>
-        <text class="flow-header__title">{{
-          isAncestorStep ? "录入首代人物" : "创建家谱"
-        }}</text>
-        <view class="flow-header__side" />
-      </view>
-    </view>
+    <PageHeader
+      :title="isAncestorStep ? '录入首代人物' : '创建家谱'"
+      custom-back
+      @back="goBack"
+    />
 
     <view class="flow-content">
       <view class="create-flow-panel">
@@ -248,6 +238,7 @@
 import { computed, onMounted, onUnmounted, reactive, ref } from "vue";
 import { onLoad, onShow } from "@dcloudio/uni-app";
 import GenealogyPageBackground from "@/components/GenealogyPageBackground.vue";
+import PageHeader from "@/components/PageHeader.vue";
 
 const currentStep = ref("create");
 const genealogyId = ref("");
@@ -423,47 +414,6 @@ const enterOverview = () =>
   background: #f9f6ef;
 }
 
-.flow-header {
-  z-index: 3;
-  height: 112rpx;
-  overflow: hidden;
-  background: url("/static/assets/foundation/opaque/root-header-cinnabar.jpg")
-    center / 100% 100% no-repeat;
-}
-
-.flow-header__content {
-  z-index: 1;
-  display: flex;
-  height: 100%;
-  align-items: center;
-  justify-content: space-between;
-  padding: 0 26rpx;
-  box-sizing: border-box;
-}
-
-.flow-header__back,
-.flow-header__side {
-  display: flex;
-  width: 72rpx;
-  align-items: center;
-}
-
-.flow-header__back-icon {
-  width: 34rpx;
-  height: 34rpx;
-  transform: rotate(180deg);
-}
-
-.flow-header__title {
-  flex: 1;
-  color: #ffe4a7;
-  font-family: "STKaiti", "KaiTi", serif;
-  font-size: 39rpx;
-  font-weight: 700;
-  letter-spacing: 4rpx;
-  text-align: center;
-}
-
 .flow-content {
   z-index: 2;
   padding: 24rpx 32rpx 48rpx;
diff --git a/tests/g03-create-flow-contract.ps1 b/tests/g03-create-flow-contract.ps1
index 4accfd6..89923c2 100644
--- a/tests/g03-create-flow-contract.ps1
+++ b/tests/g03-create-flow-contract.ps1
@@ -37,15 +37,18 @@ foreach ($required in @(
   'if (isSubmitting.value) return;',
   '/pages/genealogy/g05-genealogy-overview?genealogyId=',
   'g01-empty-panel-frame.png',
-  'root-header-cinnabar.jpg',
   'a01-scroll-primary-v3.png',
   'create-flow-panel',
-  'flow-primary-action'
+  'flow-primary-action',
+  'import PageHeader from "@/components/PageHeader.vue";',
+  '<PageHeader',
+  'custom-back',
+  '@back="goBack"'
 )) {
   Assert-Contains -Content $g03 -Expected $required -Message "Missing G03 flow contract: $required"
 }
 
-foreach ($forbidden in @("from '@/utils/api.js'", 'appApi.', 'uni.showToast', 'uni.showModal', 'uni.showLoading', 'uni.showActionSheet', '/pages/tree/t01-tree-overview?genealogyId=')) {
+foreach ($forbidden in @("from '@/utils/api.js'", 'appApi.', 'uni.showToast', 'uni.showModal', 'uni.showLoading', 'uni.showActionSheet', '/pages/tree/t01-tree-overview?genealogyId=', 'class="flow-header"', 'flow-header__back', 'root-header-cinnabar.jpg')) {
   if ($g03 -match [regex]::Escape($forbidden)) { throw "G03 retains forbidden implementation: $forbidden" }
 }
 
diff --git a/tests/g03-document-flow-contract.ps1 b/tests/g03-document-flow-contract.ps1
index 0249541..654dfa7 100644
--- a/tests/g03-document-flow-contract.ps1
+++ b/tests/g03-document-flow-contract.ps1
@@ -7,9 +7,11 @@ if ($positions.Count -ne 1 -or $positions[0].Groups[1].Value.Trim() -ne 'fixed')
   throw "G03 must retain only its combined fixed dialog layer rule; found $($positions.Count) position declarations"
 }
 foreach ($required in @(
-  'background: url("/static/assets/foundation/opaque/root-header-cinnabar.jpg")',
   'background: url("/static/assets/modules/genealogy/transparent/g01-empty-panel-frame.png")',
   'background: url("/static/assets/modules/auth/transparent/a01-scroll-dialog-v3.png")',
   'background: url("/static/assets/foundation/transparent/a01-scroll-primary-v3.png")'
 )) { if ($page -notmatch [regex]::Escape($required)) { throw "G03 is missing real asset background: $required" } }
+foreach ($forbidden in @('flow-header', 'root-header-cinnabar.jpg')) {
+  if ($page -match [regex]::Escape($forbidden)) { throw "G03 must not retain private header token: $forbidden" }
+}
 Write-Output 'G03-DOCUMENT-FLOW-CONTRACT PASS'
diff --git a/tests/g03-visual-states-contract.ps1 b/tests/g03-visual-states-contract.ps1
index 5342acb..cfb7911 100644
--- a/tests/g03-visual-states-contract.ps1
+++ b/tests/g03-visual-states-contract.ps1
@@ -9,8 +9,8 @@ function Assert-Match {
 }
 
 if ($g03 -match '<text>返回</text>') { throw 'G03 header must use only the approved image back arrow' }
-Assert-Match -Content $g03 -Pattern '(?s)\.flow-header__back,\s*\.flow-header__side\s*\{[^}]*width:\s*72rpx;' -Message 'G03 header side slots must preserve centered title after removing back text'
-Assert-Match -Content $g03 -Pattern '(?s)\.flow-header__back-icon\s*\{[^}]*width:\s*34rpx;[^}]*height:\s*34rpx;' -Message 'G03 back arrow must use the approved visible size'
+Assert-Match -Content $g03 -Pattern '(?s)<PageHeader\s+:title="isAncestorStep \? .\u5F55\u5165\u9996\u4EE3\u4EBA\u7269. : .\u521B\u5EFA\u5BB6\u8C31."\s+custom-back\s+@back="goBack"\s*/>' -Message 'G03 must use PageHeader with its dynamic title and custom back handler'
+if ($g03 -match 'flow-header|flow-header__back|flow-header__title') { throw 'G03 must not retain a private header implementation' }
 Assert-Match -Content $g03 -Pattern '(?s)\.flow-note,\s*\.flow-rule__note\s*\{[^}]*font-size:\s*25rpx;' -Message 'G03 guidance copy must use the approved readable size'
 Assert-Match -Content $g03 -Pattern '(?s)\.flow-rule__option\s*\{[^}]*font-size:\s*23rpx;' -Message 'G03 visibility options must use the approved readable size'
 Assert-Match -Content $g03 -Pattern '(?s)\.field-error\s*\{[^}]*font-size:\s*24rpx;[^}]*line-height:\s*34rpx;' -Message 'G03 field errors must use the approved readable size'