diff --git a/zhctproject/store/application/p/logic/JudgmentRank.php b/private/tmp/cdx-store-grade-judgment-20261010/source/application/p/logic/JudgmentRank.php
index 8bf34e9..2ef23c8 100644
--- a/zhctproject/store/application/p/logic/JudgmentRank.php
+++ b/private/tmp/cdx-store-grade-judgment-20261010/source/application/p/logic/JudgmentRank.php
@@ -29,7 +29,7 @@ class JudgmentRank
     public function add($params, $createBy) {
         try {
             $params['uuid'] = guid();
-            $params['create_by'] = $createBy;
+            $params['create_by'] = self::normalizeCreateBy($createBy, ltrim((string)\think\Config::get('database.type'), '\\') === \app\cores\database\Dm::class);
             $params['create_time'] = date("Y-m-d H:i:s");
             $res = $this->model->add($params);
             if(!$res) {
@@ -102,8 +102,36 @@ class JudgmentRank
         return ['code' => 0, 'message' => '修改成功', 'data' => []];
     }
 
+    /** 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) {
         $info = $this->model->read($uuid);
+        if (is_array($info)) {
+            $info = self::normalizeInfoCreateTime($info, ltrim((string)\think\Config::get('database.type'), '\\') === \app\cores\database\Dm::class);
+        }
         return ['code' => 0, 'message' => '', 'data' => $info];
     }
-}
\ No newline at end of file
+
+    /** 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;
+    }
+}