@-webkit-keyframes dotchanges {
	0% {
		top:4px;
	}
	100% {
		top:36px;
	}
}

@-moz-keyframes dotchanges {
	0% {
		top:4px;
	}
	100% {
		top:36px;
	}
}

@keyframes dotchanges {
	0% {
		top:4px;
	}
	100% {
		top:36px;
	}
}

@-webkit-keyframes yuanchanges {
	0% {
		transform: scale(0);
	}
	100% {
		transform: scale(1.2);
	}
}

@-moz-keyframes yuanchanges {
	0% {
		transform: scale(0);
	}
	100% {
		transform: scale(1.2);
	}
}

@keyframes yuanchanges {
	0% {

		transform: scale(0);
	}
	100% {
		transform: scale(1.2);
	}
}

@-webkit-keyframes ychange {
	0% {

		transform: scale(0);
	}
	100% {
		transform: scale(1.2);
	}
}

@-moz-keyframes ychange {
	0% {

		transform: scale(0);
	}
	100% {
		transform: scale(1.2);
	}
}

@keyframes ychange {
	0% {

		transform: scale(0);
	}
	100% {
		transform: scale(1.2);
	}
}


/*
@-webkit-keyframes ychange {
	0% {
		opacity:0;
		transform: scale(0.54);
	}
	50%{
		opacity:.8;
		transform: scale(0.54);
	}
	100% {
		opacity:1;
		transform: scale(1.2);
	}
}

@-moz-keyframes ychange {
	0% {
		opacity:0;
		transform: scale(0.54);
	}
	49% {
		opacity:0;
	}
	50%{
		opacity:.8;
		transform: scale(0.54);
	}
	100% {
		opacity:1;
		transform: scale(1.2);
	}
}

@keyframes ychange {
	0% {
		opacity:0;
		transform: scale(0.54);
	}
	49% {
		opacity:0;
	}
	50%{
		opacity:.8;
		transform: scale(0.54);
	}
	100% {
		opacity:1;
		transform: scale(1.2);
	}
}
*/




.indexKv{position: relative;z-index:1;height:100vh;overflow:hidden;}
.indexKv .imgbox{position: relative;z-index:1;}
.indexKv .imgbox img{display:block;width:100%;}
.indexKv .imgbox video{display:block;width:100%;}
.indexKv .imgbox::before{content:"";position: absolute;left:0;right:0;top:0;bottom:0;background:url(../images/index/kv_mask.png) no-repeat center;background-size:cover;z-index:2;}
.indexKv .imgbox::after{content:"";position:absolute;left:0;right:0;top:0;bottom:0;background:rgba(0,0,0,.3);z-index:3;}
.indexKv .txtbox{position: absolute;left:0;right:0;top:50%;transform: translateY(-50%);z-index:2;text-align:center;}
.indexKv .txtbox .cn{font-size:50px;line-height:60px;color:#fff;font-weight:bold;margin-bottom:20px;}
.indexKv .txtbox .en{font-family:arial;font-size:20px;line-height:30px;color:#fff;font-weight:bold;}
.indexKv .view{position: absolute;left:50%;transform: translateX(-50%);bottom:40px;z-index:3;display:flex;flex-wrap:wrap;width:52px;}
.indexKv .view span{font-size:10px;line-height:52px;display:inline-block;color:#fff;writing-mode: vertical-rl;text-transform: uppercase;margin-bottom:8px;}
.indexKv .view .dot{display:inline-block;width:52px;height:52px;border:1px solid #fff;border-radius:50%;position:relative;}
.indexKv .view .dot em{display:inline-block;width:18px;height:8px;top:8px;left:16px;position: absolute;animation: dotchanges 1.5s infinite;background:url(../images/index/next.svg) no-repeat center;background-size:cover;}
.indexKv .next{background:url(../images/index/next.svg) no-repeat center;display:inline-block;width:36px;height:20px;background-size:cover;position: absolute;left:50%;transform: translateX(-50%);bottom:20px;z-index:3;}
.index_1{background:url(/assets/images/index/index_1.jpg) no-repeat center;background-size:cover;height:480px;position: relative;z-index:1;}
.index_1 .box{position:absolute;left:0;right:0;top:50%;transform: translateY(-50%);}
.index_1 .box .t_1{font-size:20px;line-height:28px;color:#fff;font-weight:500;margin-bottom:20px;max-width:810px;}
.index_1 .box .t_2{font-size:28px;line-height:44px;color:#fff;font-weight:600;margin-bottom:15px;margin-bottom:20px;max-width:810px;}
.index_1 .box .t_3{font-size:16px;line-height:28px;color:#fff;margin-bottom:40px;margin-bottom:20px;max-width:810px;}
.index_1 .box a.learn{display:inline-block;width:128px;height:42px;border:1px solid #fff;text-align:center;box-sizing: border-box;line-height:40px;font-size:15px;color:#fff;transition:all .3s;}
.index_1 .box a.learn:hover{background:#d1212d;border:1px solid #d1212d;color:#fff;}
.index_2{background:#f2f2f2;height:830px;position: relative;overflow:hidden;}
.index_2 .mask{height:1200px;width:1200px;position: absolute;left:50%;top:50%;transform: translate(-50%,-50%);z-index:1;}
.index_2 .mask .box_1{width:100%;height:100%;background:url(/assets/images/index/index_2_y_1.png) no-repeat center;transform: scale(0);}
.index_2 .mask .box_2{position: absolute;left:0;right:0;top:0;bottom:0;width:100%;height:100%;background:url(/assets/images/index/index_2_y_2.png) no-repeat center;transform: scale(0);}
.index_2.active .mask .box_1{animation: yuanchanges 2s forwards;}
.index_2.active .mask .box_2{animation: ychange 4s forwards;animation-delay: .4s;}
.index_2 .content{position: absolute;left:0;right:0;top:80px;z-index:2;text-align:center;bottom:0;}
.index_2 .content .title{position: relative;font-size:18px;line-height:28px;font-weight:bold;color:#050505;padding-bottom:10px;}
.index_2 .content .title::before{content:"";position: absolute;left:50%;transform: translateX(-50%);bottom:0;display:inline-block;width:28px;height:2px;background:#050505;}
.index_2 .content .tabcon{padding-top:30px;}
.index_2 .content .tabcon .con{display:none;}
.index_2 .content .tabcon h3{font-size:38px;line-height:48px;color:#1d2088;font-weight:bold;margin-bottom:15px;}
.index_2 .content .tabcon p{font-size:16px;line-height:24px;color:#101721;}
.index_2 .content .tabcon a.learn{display:inline-block;font-size:15px;width:140px;height:40px;line-height:38px;color:#28166f;border:1px solid #28166f;margin-top:20px;transition:all .3s;;}
.index_2 .content .tabcon a.learn:hover{background:#d1212d;border:1px solid #d1212d;color:#fff;}
.index_2 .content .tabcon .imgbox{margin-top:20px;height:380px;}
.index_2 .content .tabcon .imgbox img{height:100%;display:inline-block;}
.index_2 .tablist{position: absolute;left:0;right:0;bottom:45px;z-index:3;}
.index_2 .tablist ul{display:flex;justify-content:center;}
.index_2 .tablist ul li{padding:0 20px;border-right:1px solid #111d25}
.index_2 .tablist ul li a{display:inline-block;font-size:18px;line-height:30px;color:#28166f;cursor:pointer;font-weight:500;position: relative;padding:0 10px 5px}
.index_2 .tablist ul li a.active{color:#d2212d;}
.index_2 .tablist ul li a.active::before{content:"";position: absolute;left:0;right:0;bottom:0;height:2px;background:#d2212d;}
.index_2 .tablist ul li:last-child{border-right:0;}
.index_3{padding:80px 0;background:url(/assets/images/index/index_3.jpg) no-repeat center;background-size:cover;}
.index_3 .flex-box{display:flex;justify-content: space-between;}
.index_3 .flex-box .news-lf{width:515px;}
.index_3 .flex-box .news-lf h3{font-size:42px;line-height:42px;color:#fff;font-weight:bold;color:#fff;margin-bottom:40px;}
.index_3 .flex-box .news-lf .box{width:515px;height:560px;}
.index_3 .flex-box .news-lf .box a{display:block;width:100%;height:100%;border-radius:25px;overflow:hidden;position: relative;}
.index_3 .flex-box .news-lf .box a::before{content:"";position: absolute;left:0;right:0;top:0;bottom:0;background:url(/assets/images/index/index_3_en_bg.png) no-repeat left bottom;z-index:2;}
.index_3 .flex-box .news-lf .box a img{width:100%;height:100%;object-fit:cover;transition:all .3s;}
.index_3 .flex-box .news-lf .box a:hover img{transform: scale(1.08);}
.index_3 .flex-box .news-lf .box a .mask{position: absolute;left:30px;right:60px;bottom:30px;z-index:4;}
.index_3 .flex-box .news-lf .box a .mask .lab{display:none;}/*display:inline-block;height:28px;line-height:28px;background:#00848e;padding:0 15px;background:#00848e;font-size:14px;color:#fff;margin-bottom:10px;*/
.index_3 .flex-box .news-lf .box a .mask h4{font-size:20px;line-height:32px;color:#fff;font-weight:bold;margin-bottom:10px;}
.index_3 .flex-box .news-lf .box a .mask .date{font-size:14px;line-height:24px;color:#fff;font-weight:bold;}
.index_3 .flex-box .news-rt{width:570px;margin-right:30px;}
.index_3 .flex-box .news-rt .top{text-align:right;padding:7px 0;margin-bottom:40px;}
.index_3 .flex-box .news-rt .top a{display:inline-block;font-size:18px;line-height:28px;color:#fff;font-weight:bold;padding-right:20px;background:url(/assets/images/index/right.svg) no-repeat right 6px;background-size:18px;transition:all .3s;;}
.index_3 .flex-box .news-rt .top a:hover{color:#d1212d;text-decoration:underline;background:url(/assets/images/index/right_h.svg) no-repeat right 6px;background-size:18px;}
.index_3 .flex-box .news-rt .list ul li{border-top:1px solid rgba(255,255,255,.4);}
.index_3 .flex-box .news-rt .list ul li a{padding:25px 0;display:flex;align-items:center;}
.index_3 .flex-box .news-rt .list ul li a .date{width:110px;display:flex;align-items:center;flex-wrap:wrap;flex-direction:column;justify-content:center;}
.index_3 .flex-box .news-rt .list ul li a .date .day{font-size:43px;line-height:42px;color:#fff;font-weight:bold;font-family:Arial;}
.index_3 .flex-box .news-rt .list ul li a .date .year{font-size:16px;line-height:26px;color:#fff;}
.index_3 .flex-box .news-rt .list ul li a .text{width:calc(100% - 110px);}
.index_3 .flex-box .news-rt .list ul li a .text .tit{font-size:18px;line-height:28px;color:#fff;font-weight:bold;margin-bottom:10px;transition:all .3s;display:inline-block;}
.index_3 .flex-box .news-rt .list ul li a .text .txt{font-size:14px;line-height:24px;color:rgba(255,255,255,.5);}
.index_3 .flex-box .news-rt .list ul li a:hover .text .tit{text-decoration:underline;}
.index_4{height:690px;background:url(/assets/images/index/index_4.jpg) no-repeat center;background-size:cover;position: relative;}/*background-attachment:fixed;*/
.index_4::before{content:"";position: absolute;left:0;right:0;top:0;height:600px;background:url(/assets/images/index/index_4_before.png) repeat-x left top;}
.index_4 .mask{position: absolute;left:0;right:0;top:50%;transform: translateY(-50%);text-align:center;}
.index_4 .mask h3{font-size:42px;font-weight:bold;color:#191616;margin-bottom:15px;}
.index_4 .mask p{font-size:16px;line-height:28px;color:#191616;font-weight:500;max-width:660px;margin:0 auto;margin-bottom:25px;}
.index_4 .mask a.join{display:inline-block;width:156px;height:46px;line-height:46px;font-size:15px;color:#ffffff;background:#000;transition:all .3s;}
.index_4 .mask a.join:hover{background:#d2212d;}