ul{font-family: var(--明躰); padding: 2em 1em;}
li{position: relative;
	display: block;
	>a{background-color: var(--水);
		overflow: hidden;
		padding: .6em 0;
		justify-content: center;
		align-items: center;
		position: relative;
		border-radius: 1em;
		box-shadow: 0 .125em .375em var(--滅明);
		&:hover{
			background-color: var(--褾面);
			text-shadow: 0 0 .0625em;}}
	>nav{position: absolute;
		visibility: hidden;
		opacity: 0;
		text-shadow: 0 0 .16em;
		font-size: .75em;
		line-height: 1em;
		& a{display: inline-block;
			&:hover{text-shadow: 0 0 .48em;}}}
	&:hover>nav{
		display: inline-flex;
		visibility: inherit;
		opacity: 1;
		pointer-events: auto;
		cursor: pointer;}
}