@charset "utf-8";
.sk_title{
	font-size: 40px;
	font-weight: bold;
	text-align: center;
	margin-bottom: 66px;
	line-height: 40px;
}
.sk1_box{
	padding-top: 116px;
}
.sk1_box .sk1_img{
	width: 100%;
}
.sk2_box{
	background-image: linear-gradient(to bottom,#fefeff,#eae5e5);
	padding-top: 140px;
	padding-bottom: 60px;
}
.sk2_box .sk2_nav{
	width: 14vw;
	height: 40vw;
	-webkit-transition: all 0.3s;
	transition: all 0.3s;
	position: relative;
	overflow: hidden;
	border-radius: 25px;
	position: relative;
}
.sk2_box .sk2_nav.on{
	width: 42vw;
}
.sk2_box .sk2_nav:after{
	content: "";
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
	background: rgba(0,0,0,0.2);
}
.sk2_box .sk2_nav.on:after{
	background: rgba(0,0,0,0);
}
.sk2_box .sk2_nav .sk2_nav_content{
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	width: 100%;
	box-sizing: border-box;
	z-index: 10;
}
.sk2_box .sk2_nav .sk2_nav_title{
	font-size: 30px;
	color:#fff;
	line-height: 30px;
	text-align: center;
}
.sk2_box .sk2_nav .sk2_nav_icon{
	margin: auto;
	margin-bottom: 10px;
}
.sk2_box .sk2_nav.on .sk2_nav_content{
	display: -webkit-box;
	display: -moz-box;
	display: -moz-flex;
	display: -ms-flexbox;
	display: -o-flex;
	display: -webkit-flex;
	display: flex;
	-o-align-items: center;
	-moz-align-items: center;
	-webkit-align-items: center;
	-ms-align-items: center;
	align-items: center;
	top: initial;
	transform: initial;
	bottom: 35px;
}
.sk2_box .sk2_nav.on .sk2_nav_title{
	text-align: left;
}
.sk2_box .sk2_nav.on .sk2_nav_icon{
	margin: initial;
	margin-left: 30px;
	margin-right: 12px;
}
.sk3_box{
	padding-top: 115px;
}
.sk3_swiper .swiper-slide{
	border-radius: 25px;
	cursor: pointer;
}
.sk3_swiper .swiper-slide .img{
	width: 100%;
	border-radius: 25px;
}
.sk3_swiper .swiper-slide .sk3_gray{
	position: absolute;
	width: 100%;
	height: 100%;
	z-index: 11;
	left: 0;
	top: 0;
	border-radius: 25px;
	transition: all 0.3s;
}
.sk3_swiper .swiper-slide:hover .sk3_gray{
	opacity: 0;
}
.sk3_box .sk3_video{
	width: 48px;
	height: 48px;
	position: absolute;
	bottom: 50px;
	left: 50%;
	transform: translateX(-50%);
	z-index: 12;
}
.sk3_box .sk3_inner{
	position: relative;
}
.swiper-button-prev3,
.swiper-button-next3{
	width: 40px;
	height: 40px;
	border-radius: 50%;
	background: #c30d23;
}
.swiper-button-prev3{
	left: -75px;
}
.swiper-button-next3{
	right: -75px;
}
.swiper-button-prev3.swiper-button-disabled,
.swiper-button-next3.swiper-button-disabled{
	background: #bfbfbf;
	opacity: 1;
}
.swiper-button-prev3:after,
.swiper-button-next3:after{
	font-size: 16px;
	color:#fff;
}
.sk4_box{
	padding-top: 100px;
	padding-bottom: 95px;
}
.sk4_box .sk4_nav{
	width: calc((100% - 52px) / 3);
	margin-right: 26px;
	position: relative;
	margin-top: 26px;
}
.sk4_box .sk4_nav:nth-child(3n){
	margin-right: 0;
}
.sk4_box .sk4_nav:nth-child(1),
.sk4_box .sk4_nav:nth-child(2),
.sk4_box .sk4_nav:nth-child(3){
	margin-top: 0;
}
.sk4_box .sk4_nav .sk4_nav_img{
	border-radius: 10px;
	overflow: hidden;
}
.sk4_box .sk4_nav .sk4_nav_img .img{
	width: 100%;
	border-radius: 10px;
	transition: all 0.5s;
}
.sk4_box .sk4_nav:hover .sk4_nav_img .img{
	transform: scale(1.1);
}
.sk4_box .sk4_nav .sk4_nav_info{
	position: absolute;
	top: 45%;
	left: 50%;
	transform: translateX(-50%);
	z-index: 10;
}
.sk4_box .sk4_nav .sk4_nav_title{
	color:#fff;
	font-size: 26px;
	line-height: 26px;
}
.sk4_box .sk4_nav .sk4_nav_txt{
	color:#fff;
	font-size: 15px;
	line-height: 15px;
	margin-top: 40px;
	opacity: 0;
	text-align: center;
	transition: all 0.6s;
	display: block;
}
.sk4_box .sk4_nav:hover .sk4_nav_txt{
	opacity: 1;
}
.sk4_box .sk4_nav:first-child .qr_img{
	width: 120px;
	margin: auto;
	display: none;
}
.sk4_box .sk4_nav:first-child:hover .qr_img{
	display: block;
}

.sk4_box .sk4_nav:first-child:hover .sk4_nav_title{
	display: none;
}
.sk4_box .sk4_nav:first-child:hover .sk4_nav_info{
	top: 50%;
	transform: translate(-50%,-50%);
}


.video_al{
	position: fixed;
	left: 0;
	top: 0;
	z-index: 10000;
	width: 100%;
	height: 100%;
	background: rgba(0,0,0,0.8);
	-webkit-transition: all 0.6s;
	transition: all 0.6s;
	transform: scale(0);
}
.video_al.show{
	transform: scale(1);
}
.video_al .video_box{
	width: 60%;
	position: absolute;
	top: 50%;
	left: 50%;
	-webkit-transform: translate(-50%,-50%);
	transform: translate(-50%,-50%);
	border:10px solid #fff;
}
.video_al .video_close{
	position: absolute;
	right: 30px;
	top: 30px;
	width: 46px;
	cursor: pointer;
}
/*响应式适配*/

@media screen and (max-width: 1861px) {
	
}
@media screen and (max-width: 1681px) {
	.sk2_box .sk2_nav .sk2_nav_icon {
	    max-height: 40px;
	}
	.sk2_box .sk2_nav .sk2_nav_title {
	    font-size: 24px;
	    line-height: 24px;
	}
	.swiper-button-prev3,
	.swiper-button-next3{
		width: 30px;
		height: 30px;
	}
	.swiper-button-prev3{
		left: -45px;
	}
	.swiper-button-next3{
		right: -45px;
	}
	.sk3_box .sk3_video {
	    width: 38px;
	    height: 38px;
	}
}
@media screen and (max-width: 1450px) {
	
}
@media screen and (max-width: 1335px) {
	
}
@media screen and (max-width: 1200px) {
	.sk_title{
		font-size: 20px;
		margin-bottom: 20px;
		line-height: 20px;
	}
	.sk1_box{
		padding-top: 20px;
	}
	.sk2_box {
	    padding-top: 20px;
	    padding-bottom: 20px;
	}
	.sk2_box .sk2_nav .sk2_nav_icon {
	    max-height: 30px;
	}
	.sk2_box .sk2_nav .sk2_nav_title {
	    font-size: 16px;
	    line-height: 16px;
	}
	.sk2_box .sk2_nav{
	    width: 16vw;
	}
	.sk2_box .sk2_nav.on {
	    width: 42vw;
	}
	.sk3_box {
	    padding-top: 20px;
	}
	.swiper-button-prev3{
		left: -20px;
	}
	.swiper-button-next3{
		right: -20px;
	}
	.sk4_box {
	    padding-top: 20px;
	    padding-bottom: 20px;
	}
	.sk4_box .sk4_nav {
	    width: calc((100% - 30px) / 3);
	    margin-right: 15px;
	    margin-top: 15px;
	}
	.sk4_box .sk4_nav .sk4_nav_title {
	    font-size: 16px;
	    line-height: 16px;
	}
	.sk4_box .sk4_nav .sk4_nav_txt {
	    font-size: 12px;
	    line-height: 12px;
	    margin-top: 10px;
	}
}
@media screen and (max-width: 1100px) {

}
@media screen and (max-width: 1000px) {
	
}
@media screen and (max-width: 768px) {
	
}
@media screen and (max-width: 500px) {
	.sk_title {
	    font-size: 18px;
	    line-height: 18px;
	}
	.sk4_box .sk4_nav:nth-child(3){
		margin-top: 10px;
	}
	.sk4_box .sk4_nav {
	    width: calc((100% - 20px) / 2);
	    margin-right: 10px;
	    margin-top: 10px;
	}
	.sk4_box .sk4_nav .sk4_nav_title {
	    font-size: 14px;
	    line-height: 14px;
	    white-space: nowrap;
	}
	.sk4_box .sk4_nav .sk4_nav_txt {
	    opacity: 1;
	}
	.sk3_box .sk3_video {
	    width: 28px;
	    height: 28px;
	    bottom: 20px;
	}
	.swiper-button-prev3{
		left: -5px;
	}
	.swiper-button-next3{
		right: -5px;
	}
	.sk3_swiper .swiper-slide{
		border-radius: 10px;
	}
	.sk3_swiper .swiper-slide .img{
		border-radius: 10px;
	}
	.sk3_swiper .swiper-slide .sk3_gray{
		border-radius: 10px;
	}
	.sk2_box .sk2_nav .sk2_nav_icon {
	    max-height: 20px;
	}
	.sk2_box .sk2_nav .sk2_nav_title {
	    font-size: 12px;
	    line-height: 12px;
	}
	.sk2_box .sk2_nav {
	    border-radius: 10px;
	}
	.sk2_box .sk2_nav.on .sk2_nav_icon {
	    margin-left: 10px;
	}
	.sk2_box .sk2_nav.on .sk2_nav_content{
		bottom: 10px;
	}
	.video_al .video_box{
		width: 100%;
		border:none;
	}
	.video_al .video_close{
		right: 20px;
		top: 20px;
		width: 32px;
	}
	
	.sk4_box .sk4_nav:first-child .qr_img{
		display: block;
		width: 60px;
	}
	
	.sk4_box .sk4_nav:first-child .sk4_nav_title{
		display: none;
	}
	.sk4_box .sk4_nav .sk4_nav_info{
		top: 50%;
		transform: translate(-50%,-50%);
	}
}