diff --git a/app/Models/UsernameBlacklist.php b/app/Models/UsernameBlacklist.php
index 91c1c76..5ac0284 100644
--- a/app/Models/UsernameBlacklist.php
+++ b/app/Models/UsernameBlacklist.php
@@ -50,17 +50,24 @@ class UsernameBlacklist extends Model
      */
     public static function isBlocked(string $username): bool
     {
-        return static::where('username', $username)
-            ->where(function ($q) {
-                // 永久禁用
-                $q->where('type', 'permanent')
-                  // 或：临时保留且尚未到期
-                    ->orWhere(function ($q2) {
-                        $q2->where('type', 'temp')
-                            ->where('reserved_until', '>', now());
-                    });
-            })
+        // 1. 检查是否存在精确匹配且未过期的“临时改名保留”名称
+        $hasTemp = static::where('type', 'temp')
+            ->where('username', $username)
+            ->where('reserved_until', '>', now())
             ->exists();
+
+        if ($hasTemp) {
+            return true;
+        }
+
+        // 2. 检查永久禁用词，改为【模糊匹配】（只要新注册的名字中包含禁用词，拦截）
+        // 比如数据库禁用了 "admin"，那么 "admin123" 也会触发拦截
+        $hasPermanent = static::where('type', 'permanent')
+            ->where('username', '!=', '')
+            ->whereRaw('? LIKE CONCAT("%", username, "%")', [$username])
+            ->exists();
+
+        return $hasPermanent;
     }
 
     /**