diff --git a/zhctproject/store/application/p/logic/GradeEstimation.php b/private/tmp/cdx-store-grade-judgment-20261010/source/application/p/logic/GradeEstimation.php
index 7282dea..1c193e5 100644
--- a/zhctproject/store/application/p/logic/GradeEstimation.php
+++ b/private/tmp/cdx-store-grade-judgment-20261010/source/application/p/logic/GradeEstimation.php
@@ -58,7 +58,7 @@ class GradeEstimation{
             //获取uuid
             $params['uuid'] = guid();
             $params['create_time'] = date('Y-m-d H:i:s');
-            $params['create_by']   = $user_uuid;
+            $params['create_by'] = self::normalizeCreateBy($user_uuid, ltrim((string)\think\Config::get('database.type'), '\\') === \app\cores\database\Dm::class);
             //模型处理
             $result = $this->model->insert($params);
             if (!$result) {
@@ -76,6 +76,12 @@ class GradeEstimation{
      * @param string $uuid uuid
      * @return array;
      */
+    /** Preserve this legacy VARCHAR(32) field's observed non-strict MySQL truncation. */
+    private static function normalizeCreateBy(string $value, bool $isDm): string
+    {
+        return $isDm ? mb_substr($value, 0, 32, 'UTF-8') : $value;
+    }
+
     public function info($uuid) {
         try {
             //查询等级评定是否存在
@@ -86,7 +92,26 @@ class GradeEstimation{
         } catch (Exception $e) {
             return array('code' => 1, 'message' => $e->getMessage());
         }
-        return array('code' => 0, 'message' => '查询成功', 'data' => $result);
+        return array('code' => 0, 'message' => '查询成功', 'data' => self::normalizeInfoCreateTime($result, ltrim((string)\think\Config::get('database.type'), '\\') === \app\cores\database\Dm::class));
+    }
+
+    /** Only this detail's MySQL DATETIME(0) field is normalized at the JSON boundary. */
+    private static function normalizeInfoCreateTime(array $info, bool $isDm): array
+    {
+        $value = $info['create_time'] ?? null;
+        if (!$isDm || !is_string($value)
+            || !preg_match('/^(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2})\.\d{1,6}$/D', $value, $parts)
+        ) {
+            return $info;
+        }
+        $date = \DateTime::createFromFormat('!Y-m-d H:i:s', $parts[1]);
+        $errors = \DateTime::getLastErrors();
+        if ($date && ($errors === false || ($errors['warning_count'] === 0 && $errors['error_count'] === 0))
+            && $date->format('Y-m-d H:i:s') === $parts[1]
+        ) {
+            $info['create_time'] = $parts[1];
+        }
+        return $info;
     }
     /**
      * 等级评定修改