.sec1{
	height:calc(100vh + 2.8125em);
	position:sticky;
	top:0;
}
.sec1 img{
	position:absolute;
	left:0;
	top:0;
	width:100%;
	opacity:0;
	transition:opacity 1s;
}
.sec1.active img{
	opacity:1;
}

.sec1 video{
	object-fit:cover;
	width:100%;
	height:100%;
	pointer-events:none;
}

.sec2{
	border-top-left-radius:2.8125em;
	border-top-right-radius:2.8125em;
	overflow:hidden;
	margin-top:-2.8125em;
	position:relative;
}