diff --git a/app/Http/Controllers/Admin/PlatformOrderController.php b/app/Http/Controllers/Admin/PlatformOrderController.php
index 7ec1df7..2725aa4 100644
--- a/app/Http/Controllers/Admin/PlatformOrderController.php
+++ b/app/Http/Controllers/Admin/PlatformOrderController.php
@@ -1636,10 +1636,7 @@ class PlatformOrderController extends Controller
 
             // 若锁内已有 run_id（作为 value 存储），则在提示中带出 run_id（短展示）并给运营一个直达复盘入口。
             if ($existing !== '' && str_starts_with($existing, 'BAS')) {
-                $display = $existing;
-                if (strlen($display) > 16) {
-                    $display = substr($display, 0, 6) . '…' . substr($display, -4);
-                }
+                $display = \App\Support\RunId::short((string) $existing, 6, 4);
                 $warningMsg = '检测到刚刚已提交过同一批次的 BAS 任务（1 分钟内，run_id=' . $display . '）。为避免重复投递，本次未再次提交。';
             }
 
@@ -1799,10 +1796,7 @@ class PlatformOrderController extends Controller
             $warningMsg = '检测到刚刚已提交过同一批次的 BMPA 任务（1 分钟内）。为避免重复投递，本次未再次提交。';
 
             if ($existing !== '' && str_starts_with($existing, 'BMPA')) {
-                $display = $existing;
-                if (strlen($display) > 16) {
-                    $display = substr($display, 0, 7) . '…' . substr($display, -4);
-                }
+                $display = \App\Support\RunId::short((string) $existing, 7, 4);
                 $warningMsg = '检测到刚刚已提交过同一批次的 BMPA 任务（1 分钟内，run_id=' . $display . '）。为避免重复投递，本次未再次提交。';
             }
 
diff --git a/app/Support/RunId.php b/app/Support/RunId.php
new file mode 100644
index 0000000..3162165
--- /dev/null
+++ b/app/Support/RunId.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Support;
+
+class RunId
+{
+    public static function short(string $runId, int $head = 6, int $tail = 4, string $ellipsis = '…'): string
+    {
+        $runId = trim((string) $runId);
+        if ($runId === '') {
+            return '';
+        }
+
+        $len = strlen($runId);
+        if ($len <= ($head + $tail + 1)) {
+            return $runId;
+        }
+
+        $head = max(1, (int) $head);
+        $tail = max(1, (int) $tail);
+
+        return substr($runId, 0, $head) . $ellipsis . substr($runId, -$tail);
+    }
+}
diff --git a/tests/Unit/RunIdShortTest.php b/tests/Unit/RunIdShortTest.php
new file mode 100644
index 0000000..8fbc362
--- /dev/null
+++ b/tests/Unit/RunIdShortTest.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\Support\RunId;
+use PHPUnit\Framework\TestCase;
+
+class RunIdShortTest extends TestCase
+{
+    public function test_short_should_keep_original_when_not_long_enough(): void
+    {
+        $this->assertSame('BAS123456', RunId::short('BAS123456', 6, 4));
+    }
+
+    public function test_short_should_shorten_with_ellipsis(): void
+    {
+        $this->assertSame('BAS202…0001', RunId::short('BAS202603171234560001', 6, 4));
+    }
+}