diff --git a/app/Http/Controllers/Admin/PlatformOrderController.php b/app/Http/Controllers/Admin/PlatformOrderController.php
index f8b03bb..0da9282 100644
--- a/app/Http/Controllers/Admin/PlatformOrderController.php
+++ b/app/Http/Controllers/Admin/PlatformOrderController.php
@@ -178,12 +178,15 @@ class PlatformOrderController extends Controller
 
         // 同步失败原因聚合（Top 5）：用于运营快速判断“常见失败原因”
         // 注意：这里用 JSON_EXTRACT 做 group by，MySQL 会返回带引号的 JSON 字符串，展示时做一次 trim 处理。
+        $topN = (int) config('saasshop.platform_orders.sync_failed_reason_top_n', 5);
+        $topN = max(1, min(20, $topN));
+
         $failedReasonRows = (clone $baseQuery)
             ->whereRaw("JSON_EXTRACT(meta, '$.subscription_activation_error.message') IS NOT NULL")
             ->selectRaw("JSON_EXTRACT(meta, '$.subscription_activation_error.message') as reason, count(*) as cnt")
             ->groupBy('reason')
             ->orderByDesc('cnt')
-            ->limit(5)
+            ->limit($topN)
             ->get();
 
         $failedReasonStats = $failedReasonRows->map(function ($row) {
diff --git a/config/saasshop.php b/config/saasshop.php
index 2dd03c4..5b9a828 100644
--- a/config/saasshop.php
+++ b/config/saasshop.php
@@ -1,9 +1,15 @@
 <?php
 
 return [
-    // 平台订单列表中“同步失败原因”链接的最大长度阈值。
-    // 失败原因过长时不生成 sync_error_keyword 链接，避免 URL 过长/特殊字符破坏 query。
     'platform_orders' => [
+        // 平台订单列表中“同步失败原因”链接的最大长度阈值。
+        // 失败原因过长时不生成 sync_error_keyword 链接，避免 URL 过长/特殊字符破坏 query。
         'sync_error_keyword_link_max_len' => 200,
+
+        // 平台订单列表“同步失败原因 TOPN”聚合条数。
+        'sync_failed_reason_top_n' => 5,
+
+        // 同步失败原因展示截断长度（用于列表/聚合展示，避免撑坏布局）。
+        'sync_failed_reason_display_truncate_len' => 60,
     ],
 ];
diff --git a/resources/views/admin/platform_orders/index.blade.php b/resources/views/admin/platform_orders/index.blade.php
index d06229e..a56530b 100644
--- a/resources/views/admin/platform_orders/index.blade.php
+++ b/resources/views/admin/platform_orders/index.blade.php
@@ -7,6 +7,7 @@
 @php
     // 失败原因过长时不生成 sync_error_keyword 链接，避免 URL 过长/特殊字符破坏 query
     $SYNC_ERROR_KEYWORD_LINK_MAX_LEN = (int) config('saasshop.platform_orders.sync_error_keyword_link_max_len', 200);
+    $SYNC_FAILED_REASON_TRUNCATE_LEN = (int) config('saasshop.platform_orders.sync_failed_reason_display_truncate_len', 60);
 @endphp
 <div class="card mb-20">
     <p class="muted muted-tight">这里是总台视角的平台收费主链骨架页，当前阶段先承接套餐订购 / 续费 / 生效跟踪。</p>
@@ -250,7 +251,7 @@
                     <div>
                         @if($reason !== '' && $reason !== '（空）')
                             @php
-                                $reasonText = mb_substr($reason, 0, 60);
+                                $reasonText = mb_substr($reason, 0, $SYNC_FAILED_REASON_TRUNCATE_LEN);
                                 $reasonTooLong = mb_strlen($reason) > $SYNC_ERROR_KEYWORD_LINK_MAX_LEN;
                             @endphp
 
@@ -605,11 +606,11 @@
                     @endphp
                     @if($syncErrMsg !== '')
                         @if($syncErrTooLong)
-                            <span class="muted text-danger" title="{{ $syncErrMsg }}">{{ mb_substr($syncErrMsg, 0, 60) }}</span>
+                            <span class="muted text-danger" title="{{ $syncErrMsg }}">{{ mb_substr($syncErrMsg, 0, $SYNC_FAILED_REASON_TRUNCATE_LEN) }}</span>
                             <div class="muted text-danger muted-xs">原因过长，请复制到筛选框</div>
                             <a class="link" href="{{ request()->fullUrlWithQuery(['sync_status' => 'failed', 'page' => null]) }}">进入同步失败集合</a>
                         @else
-                            <a class="link text-danger" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $syncErrMsg, 'sync_status' => 'failed', 'page' => null]) !!}">{{ mb_substr($syncErrMsg, 0, 60) }}</a>
+                            <a class="link text-danger" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $syncErrMsg, 'sync_status' => 'failed', 'page' => null]) !!}">{{ mb_substr($syncErrMsg, 0, $SYNC_FAILED_REASON_TRUNCATE_LEN) }}</a>
                         @endif
                     @else
                         <span class="muted">-</span>