diff --git a/setup.sh b/setup.sh
index b522255..cadfb7d 100644
--- a/setup.sh
+++ b/setup.sh
@@ -12,21 +12,20 @@ set -euo pipefail
 main() {
   require_unix
   ensure_repo
-  cd "$PROJECT_DIR"
   referral_notice
   ensure_bun
   install_deps
   prompt_env
   write_env
   echo
-  # Ensure we end inside the project directory
-  cd "$PROJECT_DIR"
-  echo "✅ 安装完成！已进入项目目录：$PROJECT_DIR"
-  echo "请在终端中输入以下命令启动："
+  echo "✅ 安装完成！"
+  echo "项目目录：$PROJECT_DIR"
+  echo "请在终端中依次输入以下命令启动："
   echo
+  echo "  cd ritmex-bot"
   echo "  bun start"
   echo
-  echo "提示：启动前可检查或编辑当前目录下的 .env 文件。"
+  echo "提示：启动前可在项目目录内检查或编辑 .env 文件。"
 }
 
 require_unix() {
@@ -102,7 +101,7 @@ referral_notice() {
 
 install_deps() {
   echo "Installing dependencies with Bun..."
-  bun install
+  (cd "$PROJECT_DIR" && bun install)
 }
 
 prompt_env() {
@@ -126,7 +125,7 @@ prompt_env() {
 }
 
 write_env() {
-  local env_file=".env"
+  local env_file="$PROJECT_DIR/.env"
   echo "Writing ${env_file}..."
   cat > "${env_file}" <<EOF
 # Generated by setup.sh
@@ -146,7 +145,7 @@ KLINE_INTERVAL=${KLINE_INTERVAL}
 # MAKER_MAX_CLOSE_SLIPPAGE_PCT=0.05
 # MAKER_PRICE_TICK=0.1
 EOF
-  echo "✔ .env created at $(pwd)/${env_file}"
+  echo "✔ .env created at ${env_file}"
 }
 
 main "$@"