diff --git a/.gitignore b/.gitignore
index e94b7de..623f955 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,9 +38,13 @@ scripts/__pycache__/
 # 第三方插件(独立仓库,不进项目)
 game-studio/
 
-# Prototype 大素材包(用户自行下载,不进 Git)
+# Prototype 大素材包 — 解压目录不进 Git(因为 zip 已经够了)
 prototype/*/assets/kenney-*/
 
+# 但保留 Kenney zip 原包(让任课老师 clone 后能直接解压使用)
+!prototype/单词塔防/assets/kenney-td-3d.zip
+!prototype/单词塔防/assets/kenney-td.zip
+
 # Prototype 开发期工具截图(非生产产物)
 prototype/单词塔防/sprite-grid.png
 prototype/单词塔防/grid-*.png
diff --git a/prototype/单词塔防/assets/kenney-td-3d.zip b/prototype/单词塔防/assets/kenney-td-3d.zip
new file mode 100644
index 0000000..1a4fdd3
Binary files /dev/null and b/prototype/单词塔防/assets/kenney-td-3d.zip differ
diff --git a/prototype/单词塔防/assets/kenney-td.zip b/prototype/单词塔防/assets/kenney-td.zip
new file mode 100644
index 0000000..bf2120b
Binary files /dev/null and b/prototype/单词塔防/assets/kenney-td.zip differ