diff --git a/config/__init__.py b/config/__init__.py
index 2cdd9e6..bfdf7ef 100644
--- a/config/__init__.py
+++ b/config/__init__.py
@@ -42,7 +42,7 @@ def _load_dotenv():
 
     # 2) settings.json（数据根下的统一配置）
     data_root = os.environ.get("ASTRION_DATA_ROOT", str(Path.home() / ".astrion" / "astrion"))
-    settings_path = Path(data_root) / "settings.json"
+    settings_path = Path(data_root).expanduser() / "settings.json"
     if settings_path.exists():
         try:
             settings = json.loads(settings_path.read_text(encoding="utf-8"))