.introduce_case {
	width: 100%;
	max-width: 1920px;
}

.video-con {
	display: none;
}

/*左边的内容部分*/

.introduce_left,
.introduce_right {
	float: left;
	width: 100%;
	background-color:#21201F;
}

.introduce_left {
	position: relative;
	background: url(../images/NormalImage.png)no-repeat;
	background-size: 100% 100%;
}

.introduce_left_img {
	width: 50px;
	margin-left: 8%;
	margin-top: 280px;
}

.introduce_hide_img {
	width: 50px;
	margin-left: 8%;
	margin-top: 280px;
	position: absolute;
}

.introduce_left_hide {
	z-index: 2;
	display: none;
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	background: url(../images/introductionInfomationBG.png)no-repeat;
	background-size: 100% 100%;
	/*transition: all 0.8s;
	-webkit-transition: all 0.8s;
	-ms-transition: all 0.8s;
	-moz-transition: all 0.8s;
	-o-transition: all 0.8s;*/
}

.introduce_left_twohide {
	z-index: 2;
	display: none;
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	background: url(../images/DigitalBGRON.png)no-repeat;
	background-size: 100% 100%;
	/*transition: all 0.8s;
	-webkit-transition: all 0.8s;
	-ms-transition: all 0.8s;
	-moz-transition: all 0.8s;
	-o-transition: all 0.8s;*/
}

.introduce_left_twohide_case {
	width: 310px;
	margin-top: 50px;
	margin-left: 28%;
}

.introduce_left_twohide_case h1 {
	display: inline-block;
	font-family: "DIN-BlackItalic";
	font-size: 46px;
	color: #FAFAFA;
}

.twohide_one {
	font-size: 21px;
	color: #FAFAFA;
	margin-left: 10px;
}

.introduce_left_twohide_right {
	font-size: 15px;
	color: #FAFAFA;
	float: right;
	margin-top: -5px;
}

.introduce_left_twohide_case hr {
	width: 100%;
	background: #FAFAFA;
	height: 2px;
	border: 0;
}

.introduce_left_twohide_case h2 {
	display: inline-block;
	font-family: "DIN-BlackItalic";
	color: #FAFAFA;
	font-size: 38px;
	margin-left: 8px;
}

.twohide_two {
	color: #FAFAFA;
	font-size: 16px;
}

.twohide_three {
	color: #FAFAFA;
	font-size: 12px;
	margin-left: 8px;
}

.introduce_left_word {
	width: 480px;
	height: 600px;
	float: right;
	margin-right: 6%;
	overflow: hidden;
	margin-top: 80px;
}

.go-up {
	position: relative;
}

.introduce_left_word_top,
.introduce_left_word_hide {
	font-size: 16px;
	color: #F0F0F0;
	letter-spacing: 1px;
	line-height: 26px;
	text-align: justify;
}

.unfold {
	width: 15px;
	height: 10px;
	text-align: center;
	background: #FAFAFA;
	color: #0069C8;
	line-height: 10px;
	border-radius: 2px;
	position: absolute;
	right: 10px;
	top: 140px;
	cursor: pointer;
	transition: all 0.5s;
	-webkit-transition: all 0.5s;
	-ms-transition: all 0.5s;
	-moz-transition: all 0.5s;
	-o-transition: all 0.5s;
}

.introduce_left_word_hide {
	display: block;
}

/*右边选择部分*/

.introduce_right_brief,
.introduce_right_numerical {
	position: relative;
	width: 100%;
	overflow: hidden;
	background: url(../images/colorBox_Dark.png)no-repeat;
	background-size: 100% 100%;
}

.introduce_right_brief {
	height: 65%;
}

.introduce_right_numerical {
	height: 35%;
}

/*右边上面*/

.introduce_right_WZ {
	margin: 20px 30px;
}

.introduce_right_WZ>h1 {
	font-size: 46px;
	color: #6F6F70;
	font-family: "DIN-BlackItalic";
}

.introduce_right_WZ>hr {
	background: #505050;
	height: 2px;
	border: 0;
}

.introduce_right_WZ>p {
	font-size: 24px;
	color: #505050;
	letter-spacing: 16px;
	margin-top: -10px;
}

.introduce_right_hide {
	z-index: 2;
	display: none;
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	background: url(../images/introductionInfomationLeftTopBG.png)no-repeat;
	background-size: 100% 100%;
	/*transition: all 0.8s;
	-webkit-transition: all 0.8s;
	-ms-transition: all 0.8s;
	-moz-transition: all 0.8s;
	-o-transition: all 0.8s;*/
}

.introduce_numerical_hide {
	z-index: 2;
	display: none;
	cursor: pointer;
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	background: url(../images/DigitalBG.png)no-repeat;
	background-size: 100% 100%;
}

.introduce_right_WZ_hide,
.introduce_numerical_WZ_hide {
	margin: 20px 30px;
}

.introduce_right_WZ_hide>h1,
.introduce_numerical_WZ_hide>h1 {
	font-size: 46px;
	color: #FAFAFA;
	font-family: "DIN-BlackItalic";
}

.introduce_right_WZ_hide>hr,
.introduce_numerical_WZ_hide>hr {
	width: 560px;
	background: #FAFAFA;
	height: 2px;
	border: 0;
}

.introduce_right_WZ_hide>p,
.introduce_numerical_WZ_hide>p {
	font-size: 24px;
	color: #FAFAFA;
	letter-spacing: 16px;
	margin-top: -10px;
}

.introduce_right_img {
	cursor: pointer;
	overflow: hidden;
	width: 480px;
	height: 260px;
	margin-top: 26px;
	background: url(../images/Video.jpg)no-repeat;
	background-size: 100% 100%;
}

.imgimg {
	margin: 21% 45%;
	width: 40px;
}

/*滑上去出来的效果*/

/*视频*/

.video_case {
	width: 100%;
	height: 45vw;
	position: fixed;
	top: 0;
	left: 0;
	bottom: 0;
	right: 0;
	margin: auto;
	z-index: 999;
	background: rgba(0, 0, 0, 0.3);
	display: none
}

.main_video {
	width: 81%;
	height: 100%;
	margin: 0 auto;
}

.btn_video {
	position: absolute;
	top: 4%;
	right: 4%;
	cursor: pointer;
	width: 28px;
	height: 28px;
	background: url("../images/index/btn-close-white.png") no-repeat 50% 50%;
}

.video-one {
	width: 100%;
	height: 100%;
}

.performance-text {
	display: none;
}