diff --git a/update.sh b/update.sh
index ea7a4b5..fe7bae2 100644
--- a/update.sh
+++ b/update.sh
@@ -27,9 +27,57 @@ if [ ! -d ".git" ]; then
     fi
 fi
 
-# 2. Pull latest code from current branch
-echo -e "${BLUE}Pulling latest code from git...${NC}"
-git pull
+# 2. Update logic
+if [ -d ".git" ]; then
+    echo -e "${BLUE}Git repository detected. Pulling latest code...${NC}"
+    git pull
+else
+    echo -e "${BLUE}No git repository found. Updating via ZIP archive...${NC}"
+    
+    # URL for zip download (adjust as needed for specific versioning)
+    ZIP_URL="https://git.littlediary.cn/CN-JS-HuiBai/PromdataPanel/archive/main.tar.gz"
+    TEMP_DIR="/tmp/promdata_update_$(date +%s)"
+    
+    mkdir -p "$TEMP_DIR"
+    echo "Downloading latest version..."
+    curl -L "$ZIP_URL" -o "$TEMP_DIR/latest.tar.gz"
+    
+    echo "Extracting archive..."
+    tar -xzf "$TEMP_DIR/latest.tar.gz" -C "$TEMP_DIR"
+    
+    # The extracted folder is usually named project-main or similar
+    EXTRACTED_FOLDER=$(ls -d "$TEMP_DIR"/*/ | head -n 1)
+    
+    # Ensure rsync is available (Auto-install if missing)
+    if ! command -v rsync &> /dev/null; then
+        echo -e "${BLUE}rsync is not installed. Attempting to install it...${NC}"
+        if command -v apt-get &> /dev/null; then
+            sudo apt-get update && sudo apt-get install -y rsync
+        elif command -v dnf &> /dev/null; then
+            sudo dnf install -y rsync
+        elif command -v yum &> /dev/null; then
+            sudo yum install -y rsync
+        elif command -v apk &> /dev/null; then
+            sudo apk add rsync
+        else
+            echo -e "${RED}Error: 'rsync' is not installed and could not auto-install. Please install it manually.${NC}"
+            rm -rf "$TEMP_DIR"
+            exit 1
+        fi
+    fi
+    
+    if [ -n "$EXTRACTED_FOLDER" ]; then
+        echo "Applying updates (preserving .env)..."
+        # Copy everything except .env
+        rsync -av --exclude '.env' --exclude 'node_modules' "$EXTRACTED_FOLDER" ./
+    else
+        echo -e "${RED}Extraction failed. Please check the archive structure.${NC}"
+        exit 1
+    fi
+    
+    # Cleanup
+    rm -rf "$TEMP_DIR"
+fi
 
 # 3. Update dependencies
 echo -e "${BLUE}Updating npm dependencies...${NC}"