diff --git a/src/layout/MainLayout.vue b/src/layout/MainLayout.vue
index 7002603..46aae85 100644
--- a/src/layout/MainLayout.vue
+++ b/src/layout/MainLayout.vue
@@ -5,6 +5,7 @@
 			v-if="navBarStore.isShowing"
 			class="nav-bar"
 			:left-arrow="!!navBarStore.canBack"
+			:z-index="10"
 			@left-click="doBack"
 		>
 			<template #title>
@@ -204,7 +205,6 @@ const tabBarHeight = computed(() => {
 	transition: padding-bottom .24s ease;
 
 	.nav-bar {
-		z-index: 999;
 
 		:deep(.t-navbar__content) {
 			color: var(--tui-black, #000);