diff --git a/resources/views/admin/platform_orders/index.blade.php b/resources/views/admin/platform_orders/index.blade.php
index 7aca100..10ed25e 100644
--- a/resources/views/admin/platform_orders/index.blade.php
+++ b/resources/views/admin/platform_orders/index.blade.php
@@ -245,11 +245,24 @@
                     @endphp
                     <div>
                         @if($reason !== '' && $reason !== '（空）')
-                            @php $reasonText = mb_substr($reason, 0, 60); @endphp
-                            <a class="link" title="{{ $reason }}" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $reason, 'sync_status' => 'failed', 'page' => null]) !!}">{{ $reasonText }}</a>
-                            <span class="muted">（{{ $count }}）</span>
-                            <span class="muted">｜</span>
-                            <a class="link" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $reason, 'sync_status' => null, 'syncable_only' => '1', 'page' => null]) !!}">切到可同步重试</a>
+                            @php
+                                $reasonText = mb_substr($reason, 0, 60);
+                                $reasonTooLong = mb_strlen($reason) > 200;
+                            @endphp
+
+                            @if($reasonTooLong)
+                                <span class="muted" title="{{ $reason }}">{{ $reasonText }}</span>
+                                <span class="muted">（{{ $count }}）</span>
+                                <span class="muted">｜</span>
+                                <span class="muted">原因过长，请复制到筛选框</span>
+                                <span class="muted">｜</span>
+                                <a class="link" href="{{ request()->fullUrlWithQuery(['sync_status' => 'failed', 'page' => null]) }}">进入同步失败集合</a>
+                            @else
+                                <a class="link" title="{{ $reason }}" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $reason, 'sync_status' => 'failed', 'page' => null]) !!}">{{ $reasonText }}</a>
+                                <span class="muted">（{{ $count }}）</span>
+                                <span class="muted">｜</span>
+                                <a class="link" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $reason, 'sync_status' => null, 'syncable_only' => '1', 'page' => null]) !!}">切到可同步重试</a>
+                            @endif
                         @else
                             <span class="muted">（空原因）</span>
                             <span class="muted">（{{ $count }}）</span>
@@ -582,9 +595,18 @@
                 <td>{{ optional($order->siteSubscription?->ends_at)->format('Y-m-d H:i:s') ?: '-' }}</td>
                 <td>{{ data_get($order->meta, 'subscription_activation.synced_at') ?: '-' }}</td>
                 <td>
-                    @php $syncErrMsg = (string) (data_get($order->meta, 'subscription_activation_error.message') ?? ''); @endphp
+                    @php
+                        $syncErrMsg = (string) (data_get($order->meta, 'subscription_activation_error.message') ?? '');
+                        $syncErrTooLong = $syncErrMsg !== '' && mb_strlen($syncErrMsg) > 200;
+                    @endphp
                     @if($syncErrMsg !== '')
-                        <a class="link text-danger" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $syncErrMsg, 'sync_status' => 'failed', 'page' => null]) !!}">{{ mb_substr($syncErrMsg, 0, 60) }}</a>
+                        @if($syncErrTooLong)
+                            <span class="muted text-danger" title="{{ $syncErrMsg }}">{{ mb_substr($syncErrMsg, 0, 60) }}</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>
+                        @endif
                     @else
                         <span class="muted">-</span>
                     @endif
diff --git a/tests/Feature/AdminPlatformOrderSyncFailedReasonTop5LongReasonNoLinkTest.php b/tests/Feature/AdminPlatformOrderSyncFailedReasonTop5LongReasonNoLinkTest.php
new file mode 100644
index 0000000..d446837
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderSyncFailedReasonTop5LongReasonNoLinkTest.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformOrder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlatformOrderSyncFailedReasonTop5LongReasonNoLinkTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_sync_failed_reason_top5_long_reason_should_not_render_keyword_links(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'sync_failed_reason_long_reason_no_link_test',
+            'name' => '同步失败原因过长不渲染链接测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $reason = str_repeat('很长的失败原因', 30); // > 200 chars
+        $shown = mb_substr($reason, 0, 60);
+
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_SYNC_FAILED_LONG_REASON_0001',
+            'order_type' => 'new_purchase',
+            'status' => 'activated',
+            'payment_status' => 'paid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 10,
+            'paid_amount' => 10,
+            'placed_at' => now(),
+            'paid_at' => now(),
+            'activated_at' => now(),
+            'meta' => [
+                'subscription_activation_error' => [
+                    'message' => $reason,
+                    'at' => now()->toDateTimeString(),
+                    'admin_id' => 1,
+                ],
+            ],
+        ]);
+
+        $page = $this->get('/admin/platform-orders');
+        $page->assertOk();
+
+        // 展示截断文本与“原因过长”提示
+        $page->assertSee($shown);
+        $page->assertSee('原因过长，请复制到筛选框');
+
+        // 不应渲染 sync_error_keyword= 的链接（避免 URL 过长/特殊字符问题）
+        $page->assertDontSee('sync_error_keyword=', false);
+
+        // 仍应给一个“进入同步失败集合”的入口
+        $page->assertSee('进入同步失败集合');
+        $page->assertSee('sync_status=failed', false);
+    }
+}