chore(admin-ui): remove inline styles from platform order show and add layout helpers

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

@@ -387,8 +387,8 @@
 </div>
 
 <div class="card mb-20" id="payment-receipts">
-    <div class="flex-between" style="align-items:center;">
-        <h3 style="margin:0;">支付回执（对账留痕）</h3>
+    <div class="flex-between items-center">
+        <h3 class="mb-0">支付回执（对账留痕）</h3>
         @php
             $makeExportLedgerUrl = function (array $query = []) use ($order) {
                 // download 必须显式为 1（导出安全阀），且为了测试/口径稳定，固定放在 query 的第一位
@@ -397,7 +397,7 @@
                 return '/admin/platform-orders/' . $order->id . '/export-ledger?' . \Illuminate\Support\Arr::query($query);
             };
         @endphp
-        <div class="muted" style="display:flex; gap:10px;">
+        <div class="muted inline-links">
             <a class="muted" href="{!! $makeExportLedgerUrl() !!}" target="_blank" rel="noopener">导出对账明细（CSV）</a>
             <a class="muted" href="{!! $makeExportLedgerUrl(['include_order_snapshot' => 1]) !!}" target="_blank" rel="noopener">导出含订单摘要（CSV）</a>
         </div>
@@ -592,11 +592,11 @@
         <table>
             <thead>
             <tr>
-                <th style="width:180px;">动作</th>
-                <th style="width:120px;">范围</th>
-                <th style="width:200px;">时间</th>
-                <th style="width:100px;">管理员</th>
-                <th style="width:180px;">快照</th>
+                <th class="w-200">动作</th>
+                <th class="w-120">范围</th>
+                <th class="w-200">时间</th>
+                <th class="w-120">管理员</th>
+                <th class="w-200">快照</th>
                 <th>备注</th>
             </tr>
             </thead>
@@ -663,10 +663,10 @@
 
 <div class="card">
     <h3>原始 meta（JSON）</h3>
-    <pre style="white-space: pre-wrap;">{{ json_encode($order->meta, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE) }}</pre>
+    <pre class="pre-wrap">{{ json_encode($order->meta, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE) }}</pre>
 </div>
 
-<div class="mb-20" style="margin-top:16px;">
+<div class="mb-20 mt-16">
     @php
         $back = (string) request()->query('back', '');
         // back 安全校验：只接受相对路径，且拒绝引号/尖括号，并拒绝 nested back，避免潜在 XSS/URL 膨胀。