diff --git a/backend/services/build_service.py b/backend/services/build_service.py
index 92d4f2c..607b4ef 100644
--- a/backend/services/build_service.py
+++ b/backend/services/build_service.py
@@ -675,7 +675,12 @@ async def generate_config(task_id: str, task, build_dir: Path) -> dict:
                     skin_extract_dir.mkdir(exist_ok=True)
                     with zipfile.ZipFile(skin_zip, "r") as zf:
                         zf.extractall(skin_extract_dir)
-                    entries = list(skin_extract_dir.iterdir())
+                    # 过滤掉 macOS 压缩产生的 __MACOSX 及隐藏文件，避免把它们
+                    # 当成皮肤资源目录一起复制进 Images.xcassets。
+                    entries = [
+                        e for e in skin_extract_dir.iterdir()
+                        if e.name != "__MACOSX" and not e.name.startswith(".")
+                    ]
                     if len(entries) == 1 and entries[0].is_dir():
                         config_data["THEME"] = str(entries[0])
                     else:
diff --git a/backend/services/project_patcher.py b/backend/services/project_patcher.py
index 47e0c57..2948e2d 100644
--- a/backend/services/project_patcher.py
+++ b/backend/services/project_patcher.py
@@ -68,6 +68,9 @@ def _apply_theme(build_dir: Path, theme_dir: str, messages: list[str]):
     for item in source.iterdir():
         if not item.is_dir():
             continue
+        # 跳过 macOS 压缩包内的 __MACOSX 及隐藏目录，仅复制真实皮肤资源
+        if item.name == "__MACOSX" or item.name.startswith("."):
+            continue
         destination = target_assets / item.name
         if destination.exists():
             shutil.rmtree(destination)