chore(admin-ui): platform order create uses page header

resources/views/admin/platform_orders/form.blade.php

@@ -4,9 +4,14 @@
 @section('page_title', '新建平台订单')
 
 @section('content')
-<div class="card mb-20">
-    <p class="muted muted-tight">用于总台运营手工创建一笔平台订单（演示/补单/线下收款录入）。</p>
-    <p class="muted">创建后可在「平台订单」列表中继续推进：标记支付并生效 → 同步订阅（形成最小收费闭环）。</p>
+<div class="page-header mb-20" data-page="admin.platform_orders.create">
+    <div class="page-header-main">
+        <div>
+            <div class="page-header-title">新建平台订单</div>
+            <div class="page-header-subtitle">用于总台运营手工创建一笔平台订单（演示/补单/线下收款录入）。创建后可在「平台订单」列表中继续推进：标记支付并生效 → 同步订阅（形成最小收费闭环）。</div>
+        </div>
+
+        <div class="page-header-actions">
 
     @php
         $leadId = (int) old('lead_id', $defaults['lead_id'] ?? 0);
@@ -27,11 +32,12 @@
     @endphp
 
     @if($leadId > 0)
-        <div class="mt-10 actions">
-            <span class="badge">来源线索：#{{ $leadId }}</span>
-            <a class="btn btn-secondary btn-sm" href="{!! $viewLeadOrdersUrl !!}">查看该线索关联订单</a>
-        </div>
+        <span class="badge">来源线索：#{{ $leadId }}</span>
+        <a class="btn btn-secondary btn-sm" href="{!! $viewLeadOrdersUrl !!}">查看该线索关联订单</a>
     @endif
+        </div>
+    </div>
+</div>
 
     @if(($siteSubscription ?? null) && $siteSubscription->id)
         <div class="mt-10">