footer{
	background: #f1f3f7;
}

.shoushu-video .grid{
	gap: 2rem;
}
.shoushu-video .item{
	border-radius: .6rem;
	overflow: hidden;
}
.shoushu-video .item .img{
	height: auto;
	aspect-ratio: 510/297;
}

.shoushu-video .play{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%);
	width: 5rem;
	height: 2.6rem;
	border: 2px solid #fff;
	border-radius: 30rem;
	display: flex;
	align-items: center;
	justify-content: center;
}
.shoushu-video .play svg{
	width: 35%;
}
.shoushu-video .item .txt{
	background: #f1f3f7;
	padding: 1rem 2rem;
}
.shoushu-video .txt .tt{
	font-size: var(--f22);
	flex: 1;
}
.shoushu-video .txt .video-btn{
	font-size: var(--f16);
	display: flex;
	align-items: center;
	color: #a8a8a8;
	gap: .4rem;
	line-height: 1;
	display: none;
}
.shoushu-video .txt .video-btn svg{
	height: 1.2em;
	width: auto;
}
.shoushu-video .txt .video-btn svg path{
	fill: #a8a8a8;
}

/* 第一个元素 */
.shoushu-video .item:nth-child(1){
	/* 合并横纵两列grid */
	grid-column: span 2;
	/* 合并两行grid */
	grid-row: span 2;
	display: flex;
	flex-direction: column;
}
.shoushu-video .item:nth-child(1) .txt{
	flex: 1;
	display: flex;
	flex-direction: column;
	justify-content: center;
}
.shoushu-video .item:nth-child(1) .txt .tt{
	font-size: var(--f26);
}
.shoushu-video .item:nth-child(1) .txt .video-btn{
	display: block;
}