diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..ee68de5
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,16 @@
+# 大二进制文件走 Git LFS，避免仓库膨胀 / 网页预览超时
+# 提交这类文件前，先在本机执行一次： git lfs install
+*.pptx filter=lfs diff=lfs merge=lfs -text
+*.ppt  filter=lfs diff=lfs merge=lfs -text
+*.docx filter=lfs diff=lfs merge=lfs -text
+*.doc  filter=lfs diff=lfs merge=lfs -text
+*.xlsx filter=lfs diff=lfs merge=lfs -text
+*.xls  filter=lfs diff=lfs merge=lfs -text
+*.pdf  filter=lfs diff=lfs merge=lfs -text
+*.zip  filter=lfs diff=lfs merge=lfs -text
+*.rar  filter=lfs diff=lfs merge=lfs -text
+*.7z   filter=lfs diff=lfs merge=lfs -text
+*.mp4  filter=lfs diff=lfs merge=lfs -text
+*.mov  filter=lfs diff=lfs merge=lfs -text
+*.psd  filter=lfs diff=lfs merge=lfs -text
+*.ai   filter=lfs diff=lfs merge=lfs -text
diff --git a/files/光明区文旅全域地图及AI导览POC建设方案.docx b/files/光明区文旅全域地图及AI导览POC建设方案.docx
index 4b2cb6f..b9d3d83 100644
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diff --git a/files/文旅小程序三期规划方案20260709.pptx b/files/文旅小程序三期规划方案20260709.pptx
index 4334b76..d2d0b66 100644
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diff --git a/files/文旅小程序三期规划方案202607091517.pptx b/files/文旅小程序三期规划方案202607091517.pptx
index 39d4d3c..be0eac9 100644
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