.black {
    padding-bottom: 20px;
	background-color: #000000;
}
.box {
	max-width: 1200px;
}

.box .title-h{
	color: #ffffff;
	font-size: 63px;
	padding-top: 40px;
	padding-bottom: 10px;
	text-align: center;
}

.box .list {
	display: flex;
	flex-wrap: wrap;
	width: 100%;
}

.box .list .li{
	width: 25%;
	margin-top: 40px;
	position: relative;
	cursor: pointer;
}

.box .list .li .play{
	display: none;
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 170px;
	background-color: rgba(0, 0, 0, 0.4);
}

.box .list .li .play img {
	width: 40px;
	height: 40px;
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	margin: auto;
	cursor: pointer;
}

.box .list .li video{
	width: 100%;
	height: 170px;
	object-fit: cover;
}

.box .list .li:hover .play {
	display: block;
}

.box .list .li .title{
	padding: 10px;
	cursor: pointer;
}

.images{
    width: 100%;
    max-width: 980px;
    margin: 20px auto;
}

.images img {
    width: 100%;
    height: auto;
}

.pop{
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: #000000;
	display: none;
}

.pop .close {
	font-size: 32px;
	height: 60px;
	line-height: 60px;
	text-align: right;
}

.pop .close span {
	margin-right: 20px;
	cursor: pointer;
}

.pop .video {
	width: 100%;
	height: calc(100% - 60px);
}

.pop .video video{
	width: 100%;
	height: 100%;
	object-fit: contain;
}