diff --git a/sh_backmate_theme_adv_enterprise/static/src/scss/background/body_background_img/background-img.scss b/sh_backmate_theme_adv_enterprise/static/src/scss/background/body_background_img/background-img.scss
index 074e4977c..a17e6782c 100644
--- a/sh_backmate_theme_adv_enterprise/static/src/scss/background/body_background_img/background-img.scss
+++ b/sh_backmate_theme_adv_enterprise/static/src/scss/background/body_background_img/background-img.scss
@@ -14,6 +14,7 @@
          }
       }
       .o_form_sheet_bg {
+         z-index: 1;
          .o_form_sheet {
             background: transparent;
          }
@@ -215,6 +216,7 @@
          background-color: rgba(255, 255, 255, 0.6);
       }
       .o_form_sheet_bg {
+         z-index: 1;
          background: transparent;
       }
    }
diff --git a/sh_backmate_theme_adv_enterprise/static/src/scss/check_box_style/check_box_style.scss b/sh_backmate_theme_adv_enterprise/static/src/scss/check_box_style/check_box_style.scss
index 69a00f409..bd7f1f578 100644
--- a/sh_backmate_theme_adv_enterprise/static/src/scss/check_box_style/check_box_style.scss
+++ b/sh_backmate_theme_adv_enterprise/static/src/scss/check_box_style/check_box_style.scss
@@ -240,6 +240,7 @@
     }
     .o_form_view {
         .o_form_sheet_bg {
+            z-index: 1;
             .o_form_sheet {
                 [name="options"] {
                     .o_field_widget.o_field_boolean {
diff --git a/sh_backmate_theme_adv_enterprise/static/src/scss/extra_scss/extra.scss b/sh_backmate_theme_adv_enterprise/static/src/scss/extra_scss/extra.scss
index 3fc5ffc8a..bc5165d7f 100644
--- a/sh_backmate_theme_adv_enterprise/static/src/scss/extra_scss/extra.scss
+++ b/sh_backmate_theme_adv_enterprise/static/src/scss/extra_scss/extra.scss
@@ -1317,6 +1317,7 @@ body {
 // survey {
 .o_form_view {
 	.o_form_sheet_bg {
+		z-index: 1;
 		.o_notebook {
 			.o_field_widget.o_field_question_page_one2many[name="question_and_page_ids"] {
 				width: 100%;
diff --git a/sh_backmate_theme_adv_enterprise/static/src/scss/night_mode/night_mode.scss b/sh_backmate_theme_adv_enterprise/static/src/scss/night_mode/night_mode.scss
index 878c56da8..73e38bb9c 100644
--- a/sh_backmate_theme_adv_enterprise/static/src/scss/night_mode/night_mode.scss
+++ b/sh_backmate_theme_adv_enterprise/static/src/scss/night_mode/night_mode.scss
@@ -414,6 +414,7 @@ body{
 	.o_content{
 		.o_form_renderer{
 			.o_form_sheet_bg {
+				z-index: 1;
 				.o_form_statusbar{
 					background-color: transparent!important;
 				}
@@ -2978,6 +2979,7 @@ nav.o_main_navbar .sh_backmate_theme_appmenu_div:hover span.dropdown-item.o_app:
 	.o_form_sheet_bg{
 		padding-left: 0px;
 		padding-right: 0px;
+		z-index: 1;
 
 		.o_form_sheet{
 			a.o_form_uri.o_field_widget{
diff --git a/sh_backmate_theme_adv_enterprise/static/src/scss/theme_config.scss b/sh_backmate_theme_adv_enterprise/static/src/scss/theme_config.scss
index e9b8c9a6c..5449a64a1 100644
--- a/sh_backmate_theme_adv_enterprise/static/src/scss/theme_config.scss
+++ b/sh_backmate_theme_adv_enterprise/static/src/scss/theme_config.scss
@@ -1410,6 +1410,7 @@
 
 .o_form_view .o_form_sheet_bg {
   max-width: 1400px;  // 限制表单最大宽度
+  z-index: 1;
   
   @include media-breakpoint-down(lg) {
     max-width: 100% !important  // 小屏幕保持100%宽度