--- a/application/api/service/Card.php
+++ b/application/api/service/Card.php
@@ -91,6 +91,8 @@
             ->toArray();
         if (!empty($paginator['data'])) {
             foreach ($paginator['data'] as $key => $item) {
+                $item = $this->normalizeCardListResponseRow($item);
+                $paginator['data'][$key] = $item;
                 $staffDepartments = Db::name('staff_department')->alias('sd')
                     ->join('department d', 'd.uuid = sd.department_uuid')
                     ->where('sd.staff_uuid', $item['staff_uuid'])
@@ -541,11 +543,50 @@
             ->toArray();
         if (!empty($paginator['data'])) {
             foreach ($paginator['data'] as $key => $item) {
+                $item = $this->normalizeCardLogResponseRow($item);
+                $paginator['data'][$key] = $item;
                 $paginator['data'][$key]['operateTypeDesc'] = $this->getOperateDesc(intval($item['operate_type']));
             }
         }
 
         return $paginator;
+    }
+
+    /** Preserve the proven MySQL IFNULL(uint8,5) text and DATETIME(0) list contract. */
+    private function normalizeCardListResponseRow(array $row): array
+    {
+        if (ltrim((string)\think\Config::get('database.type'), '\\') !== \app\cores\database\Dm::class) {
+            return $row;
+        }
+        if (isset($row['card_status']) && is_int($row['card_status'])
+            && $row['card_status'] >= 0 && $row['card_status'] <= 255) {
+            $row['card_status'] = (string)$row['card_status'];
+        }
+        if (array_key_exists('issue_time', $row)) {
+            $row['issue_time'] = $this->normalizeCardResponseDateTime($row['issue_time']);
+        }
+        return $row;
+    }
+
+    private function normalizeCardLogResponseRow(array $row): array
+    {
+        if (ltrim((string)\think\Config::get('database.type'), '\\') === \app\cores\database\Dm::class
+            && array_key_exists('operate_time', $row)) {
+            $row['operate_time'] = $this->normalizeCardResponseDateTime($row['operate_time']);
+        }
+        return $row;
+    }
+
+    /** Only valid MySQL-second timestamps with an all-zero DM fractional suffix. */
+    private function normalizeCardResponseDateTime($value)
+    {
+        if (is_string($value)
+            && preg_match('/^((\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2}))\.0{1,6}$/D', $value, $match)
+            && (int)$match[2] >= 1000 && checkdate((int)$match[3], (int)$match[4], (int)$match[2])
+            && (int)$match[5] <= 23 && (int)$match[6] <= 59 && (int)$match[7] <= 59) {
+            return $match[1];
+        }
+        return $value;
     }
 
     /**