.l-main {
	position: static !important; //色々と重要
	width: 100%;

	[data-sidebar="on"] & {

		@include pc {
			width: calc(100% - 368px);
			max-width: 100%; //l-artcileが狭い時を考慮
		}
	}
}

.l-main__body {

	> :first-child {
		margin-top: 0 !important;
	}

	> :last-child {
		margin-bottom: 0 !important;
	}
}