diff --git a/.gitignore b/.gitignore
index 4ba6711..446ba1a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -199,3 +199,6 @@ zhihu-articles/
 
 # Results directory (test outputs, charts, etc.)
 results/
+
+# Paper documents (academic papers)
+docs/paper/