.box {
	width: 100%;
	background: rgba(255, 255, 255, 0.7);
	position: relative
}

.content {
	width: 100%;
	padding-top: 179px;
	position: relative;
	z-index: 1
}

.slider {
	width: 100%;
	height: 600px;
	overflow: hidden;
	position: relative
}

.slider_box {
	width: 100%;
	height: 600px;
	position: relative
}

.slider_img {
	width: 100%;
	height: 600px;
	position: absolute;
	top: 0;
	left: 0
}

.slider_bg {
	width: 100%;
	height: 600px;
	opacity: 0;
	position: absolute;
	top: 0;
	left: 0;
	transition: ease-in-out 1s
}

.slider_bg:nth-of-type(1) {
	background: url("../img/class/video9.png") center no-repeat;
	background-size: cover
}

.slider_bg:nth-of-type(2) {
	background: url("../img/class/slider_mini2.png") center no-repeat;
	background-size: cover
}

.slider_bg:nth-of-type(3) {
	background: url("../img/class/slider_mini3.png") center no-repeat;
	background-size: cover
}

.slider_bg:nth-of-type(4) {
	background: url("../img/class/slider_mini1.png") center no-repeat;
	background-size: cover
}

.slider_bg:nth-of-type(5) {
	background: url("../img/index/boya_video1.png") center no-repeat;
	background-size: cover
}

.slider_intro {
	width: 1200px;
	height: 600px;
	margin: auto;
	position: relative;
	z-index: 2
}

.slider_text {
	width: 328px;
	height: 600px;
	background: rgba(34, 34, 34, 0.8);
	float: right
}

.slider_text_ul {
	width: 100%;
	height: 100%
}

.slider_text_ul li {
	width: 100%;
	height: 55px;
	line-height: 55px;
	text-align: center;
	color: #fff
}

.slider_text_ul li a {
	color: #fff
}

.slider_text_ul li:nth-of-type(1) {
	height: 45px;
	line-height: 45px;
	background: #000
}

.slider_text_ul li h2 {
	font-size: 16px;
	color: #fff
}

.slider_text_ul li span {
	display: inline-block;
	width: 22px;
	height: 22px;
	text-align: center;
	line-height: 22px;
	color: #fff;
	border: 1px solid #fff;
	margin-right: 35px
}

.slider_text_ul li .top_tre {
	background: #7b0008;
	border: 1px solid #7b0008
}

.slider_text_ul li:hover {
	background: #000
}

.btn {
	width: 130px;
	height: 20px;
	position: absolute;
	bottom: 32px;
	right: 328px
}

.btn span {
	display: inline-block;
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: #858483;
	margin-right: 14px
}

.btn:hover {
	cursor: pointer
}

.btn .active {
	background: #7B0008
}

.content_wrap {
	width: 1200px;
	margin: 60px auto auto
}

.video_title {
	width: 100%;
	height: 62px
}

.video_title p {
	line-height: 62px;
	font-size: 15px;
	color: #333;
	letter-spacing: 3px
}

.video_title p a {
	font-size: 15px;
	color: #343434;
	padding: 0 16px
}

.goodvideo {
	border-left: 1px solid #333;
	border-right: 1px solid #333
}

.video_title .select {
	color: #7B0008
}

.video_box {
	width: 100%
}

.video_box1,
.video_box2,
.video_box3 {
	width: 100%;
	display: none
}

.video_box1 {
	display: block
}

.video_ul {
	width: 100%
}

.video_ul li {
	width: 278px;
	height: 286px;
	border-radius: 10px;
	background: #fff;
	margin-right: 29px;
	float: left;
	margin-bottom: 40px;
	overflow: hidden
}

.video_ul li:nth-of-type(4n) {
	margin-right: 0
}

.img_box {
	width: 278px;
	height: 180px;
	position: relative;
	overflow: hidden
}

.img_box img {
	width: 100%
}

.img_intro {
	width: 260px;
	height: 104px;
	padding: 2px 6px 0 12px
}

.img_intro h2 {
	font-size: 16px;
	color: #000;
	line-height: 26px;
	margin-top: 3px;
	letter-spacing: 3px;
	font-weight: bolder
}

.teacher {
	font-size: 15px;
	color: #333;
	line-height: 26px;
	letter-spacing: 3px
}

.time {
	line-height: 30px
}

.img_modal {
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.2);
	position: absolute;
	top: 0;
	left: 0;
	display: none
}

.showLogo {
	width: 64px;
	height: 64px;
	margin: 64px auto;
	overflow: hidden
}

.showLogo img {
	width: 100%
}

.video_ul li:hover .img_modal {
	display: block
}

.video-modal {
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.4);
	position: absolute;
	top: 0;
	left: 0;
	z-index: 100;
	display: none
}

.video-modal-box {
	width: 50%;
	text-align: center;
	position: fixed;
	top: 180px;
	left: 25%;
	z-index: 500
}

.video-modal-box p {
	text-align: right;
	font-size: 40px;
	color: #fff;
	padding: 10px 0 10px 10px;
	opacity: 0.6
}

.video-modal-box video {
	width: 100%;
	background: grey;
}

.close:hover {
	cursor: pointer
}