diff --git a/install.sh b/install.sh
index bfec102a..23bfa3d6 100755
--- a/install.sh
+++ b/install.sh
@@ -143,14 +143,10 @@ select_menu() {
 
     local i
     for i in "${!options[@]}"; do
-      local tag="" tag_plain=""
-      if [[ "$i" -eq "${default_index:-99}" ]]; then
-        tag=" ${CC_SUCCESS}[自动]${C_RESET}"; tag_plain=" [自动]"
-      fi
       if [[ "$i" -eq "$selected" ]]; then
-        ctms_box_line "${C_BLUE}${C_BOLD}" "$UI_BOX_WIDTH" "${ICON_BULLET} ${options[$i]}${tag_plain}" "${CC_INFO}${C_BOLD}${ICON_BULLET} ${options[$i]}${C_RESET}${tag}"
+        ctms_box_line "${C_BLUE}${C_BOLD}" "$UI_BOX_WIDTH" "${ICON_BULLET} ${options[$i]}" "${CC_INFO}${C_BOLD}${ICON_BULLET} ${options[$i]}${C_RESET}"
       else
-        ctms_box_line "${C_BLUE}${C_BOLD}" "$UI_BOX_WIDTH" "${ICON_BULLET_OFF} ${options[$i]}${tag_plain}" "${CC_MUTED}${ICON_BULLET_OFF} ${options[$i]}${C_RESET}${tag}"
+        ctms_box_line "${C_BLUE}${C_BOLD}" "$UI_BOX_WIDTH" "${ICON_BULLET_OFF} ${options[$i]}" "${CC_MUTED}${ICON_BULLET_OFF} ${options[$i]}${C_RESET}"
       fi
     done
     ctms_box_bottom "${C_BLUE}${C_BOLD}" "$UI_BOX_WIDTH"
@@ -180,10 +176,19 @@ pick_env() {
     main)    default_index=1 ;;
     release) default_index=2 ;;
   esac
-  select_menu "选择环境" "$default_index" \
-    "dev       本地开发环境      Vite 热加载 / 默认密钥" \
-    "main      内网测试环境      预发布验证 / 生产模式" \
+  local -a opts=(
+    "dev       本地开发环境      Vite 热加载 / 默认密钥"
+    "main      内网测试环境      预发布验证 / 生产模式"
     "release   生产环境          HTTPS / RSA 密钥"
+  )
+  if [[ -n "$env" ]]; then
+    case "$default_index" in
+      0) opts[0]="dev(默认)  本地开发环境      Vite 热加载 / 默认密钥" ;;
+      1) opts[1]="main(默认) 内网测试环境      预发布验证 / 生产模式" ;;
+      2) opts[2]="release(默认) 生产环境       HTTPS / RSA 密钥" ;;
+    esac
+  fi
+  select_menu "选择环境" "$default_index" "${opts[@]}"
   case "$SELECTED_INDEX" in
     0) SELECTED_ENV="dev" ;;
     1) SELECTED_ENV="main" ;;
@@ -228,7 +233,7 @@ pause_return() {
 }
 
 interactive_main() {
-  select_menu "选择操作" "0" \
+  select_menu "选择操作" "" \
     "安装部署      配置环境、构建容器、迁移数据库、健康检查" \
     "滚动更新      重建服务、执行迁移、复用安装健康检查" \
     "安全卸载      停止并移除容器，保留 .env 与数据文件" \