diff --git a/sync.sh b/sync.sh
index 961fd5f..e68a1ff 100644
--- a/sync.sh
+++ b/sync.sh
@@ -1,40 +1,43 @@
 #!/bin/bash
 set -e
 
-echo "[1] update iptv-org repo"
+echo "[sync] start $(date)"
 
-if [ ! -d iptv ]; then
-  git clone https://github.com/iptv-org/iptv.git
+# ===== config safety =====
+git config --global user.name "iptv-sync"
+git config --global user.email "bot@local"
+git config --global http.version HTTP/1.1
+
+# ===== 1. github gh-pages =====
+if [ ! -d iptv/.git ]; then
+  git clone --depth 1 -b gh-pages https://github.com/iptv-org/iptv.git iptv
+else
+  cd iptv
+  git fetch origin gh-pages
+  git reset --hard origin/gh-pages
+  cd ..
 fi
 
-cd iptv
-git fetch origin
-git checkout gh-pages
-git reset --hard origin/gh-pages
-cd ..
-
-echo "[2] update gitea repo"
-
-if [ ! -d iptv-gh-pages ]; then
+# ===== 2. gitea repo =====
+if [ ! -d iptv-gh-pages/.git ]; then
   git clone https://${GITEA_HOST}/${GITEA_REPO}.git iptv-gh-pages
 fi
 
+# ===== 3. sync files =====
+rsync -a --delete \
+  --exclude='.git' \
+  iptv/ iptv-gh-pages/
+
+# ===== 4. commit & push =====
 cd iptv-gh-pages
-git pull origin main || true
 
-echo "[3] sync files"
-
-# 清空旧内容（保留 .git）
-find . -mindepth 1 -maxdepth 1 ! -name ".git" -exec rm -rf {} +
-
-cp -r ../iptv/* .
-
-echo "[4] commit & push"
-
-git add .
-
-git commit -m "sync: $(date '+%Y-%m-%d %H:%M:%S')" || echo "no changes"
+git add -A
+git diff --cached --quiet && {
+  echo "[sync] no changes"
+  exit 0
+}
 
+git commit -m "sync $(date '+%Y-%m-%d %H:%M:%S')"
 git push origin main
 
-echo "[done]"
\ No newline at end of file
+echo "[sync] done $(date)"
\ No newline at end of file