uni-app sets the positioning style bottom: 0 will be blocked by the tab bar

uni-app set fixed positioning, the style is bottom: 0 and then it is blocked by the tab bar.

Solution bottom: var(–window-bottom);

.cartBottom {
    
    
		position: fixed;
		bottom: var(--window-bottom);
		width: 100%;
		height: 106rpx;
		background: red;
	}