diff --git a/.gitignore b/.gitignore
index 10e9f14..65450cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,6 @@ data/
 Thumbs.db
 *.swp
 *.swo
+
+# SSH密钥备份（本地保留，不提交）
+.ssh_backup/
diff --git a/.ssh_backup/id_ed25519 b/.ssh_backup/id_ed25519
deleted file mode 100644
index c36768b..0000000
--- a/.ssh_backup/id_ed25519
+++ /dev/null
@@ -1,7 +0,0 @@
------BEGIN OPENSSH PRIVATE KEY-----
-b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
-QyNTUxOQAAACAgfSgzji/vHbW/4z2HeDOoNt6kVUOsmM3bALfJjqJLygAAAJjwZB6C8GQe
-ggAAAAtzc2gtZWQyNTUxOQAAACAgfSgzji/vHbW/4z2HeDOoNt6kVUOsmM3bALfJjqJLyg
-AAAED9V1ZVtiTUQVl8U7YWclYwp8vwgTbvSy/0UH7ly5ktjSB9KDOOL+8dtb/jPYd4M6g2
-3qRVQ6yYzdsAt8mOokvKAAAAEWF0cmlAa3JvbmVja2VyLmNjAQIDBA==
------END OPENSSH PRIVATE KEY-----
diff --git a/.ssh_backup/id_ed25519.pub b/.ssh_backup/id_ed25519.pub
deleted file mode 100644
index 4abec91..0000000
--- a/.ssh_backup/id_ed25519.pub
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICB9KDOOL+8dtb/jPYd4M6g23qRVQ6yYzdsAt8mOokvK atri@kronecker.cc