feat: 同步dev分支并保留当前修改

src/navigation/SimpleMobileTabNavigator.tsx

@@ -269,6 +269,9 @@ export function SimpleMobileTabNavigator() {
     );
   };
 
+  // 计算底部安全距离
+  const bottomSafeArea = TAB_BAR_HEIGHT + TAB_BAR_FLOATING_MARGIN * 2 + insets.bottom;
+
   return (
     <View style={styles.container}>
       {/* 内容区域 */}
@@ -331,7 +334,9 @@ const styles = StyleSheet.create({
   },
   content: {
     flex: 1,
-    marginBottom: TAB_BAR_HEIGHT + TAB_BAR_FLOATING_MARGIN * 2,
+  },
+  bottomSpacer: {
+    backgroundColor: 'transparent',
   },
   tabBar: {
     position: 'absolute',
@@ -340,8 +345,7 @@ const styles = StyleSheet.create({
     height: TAB_BAR_HEIGHT,
     backgroundColor: colors.background.paper,
     borderRadius: 24,
-    borderTopWidth: 1,
-    borderTopColor: `${colors.divider}88`,
+    // 移除顶部边框，避免与内容之间出现线条
     flexDirection: 'row',
     alignItems: 'center',
     justifyContent: 'space-around',