chore(admin-ui): platform leads index uses page header

resources/views/admin/platform_leads/index.blade.php

@@ -73,6 +73,23 @@
     };
 @endphp
 
+<div class="page-header mb-20" data-page="admin.platform_leads.index">
+    <div class="page-header-main">
+        <div>
+            <div class="page-header-title">开通线索</div>
+            <div class="page-header-subtitle">对外平台（/platform）收集的开通意向线索，用于前期人工运营承接，并可联动创建平台订单/续费订单形成收费闭环。</div>
+        </div>
+        <div class="page-header-actions">
+            @if($safeBackForLinks !== '')
+                <a href="{!! $safeBackForLinks !!}" class="btn btn-secondary btn-sm">← 返回上一页（保留上下文）</a>
+            @endif
+        </div>
+    </div>
+    <div class="page-header-meta">
+        <div>后续将逐步接入：一键生成站点/订阅/平台订单、跟进记录、转化漏斗与治理提示。</div>
+    </div>
+</div>
+
 <details class="card mb-20 collapsible filters-card" data-role="collapsible" data-storage-key="admin.platform_leads.filters" open>
     <summary class="collapsible-summary filters-summary">
         <div class="flex-between items-center">
@@ -83,13 +100,7 @@
             <span class="muted muted-xs">点击收起/展开</span>
         </div>
 
-        @if($safeBackForLinks !== '')
+        <div class="muted muted-xs mt-6">线索筛选与状态治理入口（可折叠）。</div>
-            <div class="mt-10">
-                <a href="{!! $safeBackForLinks !!}" class="muted">← 返回上一页（保留上下文）</a>
-            </div>
-        @endif
-
-        <div class="muted muted-xs mt-6">后续会在此处逐步接入：一键生成站点/订阅/平台订单、跟进记录、转化漏斗与治理提示。</div>
     </summary>
 
     <div class="collapsible-body filters-body">