diff --git a/.gitignore b/.gitignore
index 3fc8ecb..95f4ea3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -42,3 +42,6 @@ paper_writer_service/paper.db
 paper_writer_service/paper.db-shm
 paper_writer_service/paper.db-wal
 paper_writer_service/paper.log
+
+# 部署方案文档（含主机凭据，不入库）
+docs/DEPLOY_PAPER_176.md