.header{height:55px;width:100%;left:0;top:0;position:absolute;z-index:999;background:transparent;-webkit-box-sizing:border-box;box-sizing:border-box;padding:0 124px;line-height:55px;color:#c8c8c8;-webkit-transition:top .5s linear;transition:top .5s linear;background:rgba(0,0,0,.7)}.header:not(.mobile){min-width:1200px}.header.collasp .f-right{-webkit-transform:translateY(-90px);transform:translateY(-90px)}.header.dark:not(.mobile){color:rgba(0,0,0,.8)}.header.dark:not(.mobile) .active-main{color:#000}.header.dark:not(.mobile) .active-main:after,.header.dark:not(.mobile) .f-right>a:after,.header.dark:not(.mobile) .f-right>div:after{background:rgba(0,0,0,.8)}.header.dark:not(.mobile) .f-right>a:hover,.header.dark:not(.mobile) .f-right>div:hover{color:rgba(0,0,0,.8)}.header.dark .cn-btn,.header.mobile .cn-btn{background:url(../img/cn-dark.ce672df1.svg) no-repeat 50%}.header.dark .en-btn,.header.mobile .en-btn{background:url(../img/en-dark.ec13a002.svg) no-repeat 50%}.header .f-right{-webkit-transition:top .5s linear;transition:top .5s linear}.header .f-right>a,.header .f-right>div{float:left;padding:0 6px;margin-left:40px;height:55px;line-height:55px;cursor:pointer;font-size:14px;position:relative}.header .f-right>a:after,.header .f-right>div:after{content:"";position:absolute;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);width:0;background:#2d61dd;height:2px;top:53px;-webkit-transition:.2s;transition:.2s}.header .f-right>a.active-main,.header .f-right>a:hover,.header .f-right>div.active-main,.header .f-right>div:hover{color:#e9e9e9}.header .f-right>a.active-main:after,.header .f-right>a:hover:after,.header .f-right>div.active-main:after,.header .f-right>div:not(.en-btn):hover:after{width:100%}.header .logo{display:block;height:24px;top:18px;position:absolute;z-index:99}.header .cn-btn,.header .en-btn{height:24px;width:40px}.header .cn-btn{background:url(../img/cn.8ba15aac.svg) no-repeat 50%}.header .en-btn{background:url(../img/en.d016e645.svg) no-repeat 50%}.header:not(.mobile) .second-nav{position:absolute;width:240px;z-index:1;top:100%;padding:28px 0;-webkit-transition:clip .1s linear;transition:clip .1s linear;background:rgba(0,0,0,.8);clip:rect(0,500px,0,0);-webkit-transition:clip .4s;transition:clip .4s}.header:not(.mobile) .second-nav,.header:not(.mobile) .second-nav.center{left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%)}.header:not(.mobile) .second-nav.show{-webkit-transition:clip .8s;transition:clip .8s;clip:rect(0,500px,940px,0)}.header:not(.mobile) .second-nav>li{white-space:nowrap;text-align:center;line-height:64px}.header:not(.mobile) .second-nav>li .block>span:before{top:20px}.header:not(.mobile) .second-nav>li>.block,.header:not(.mobile) .second-nav>li>a{display:block;height:64px;line-height:64px;font-size:0;position:relative}.header:not(.mobile) .second-nav>li>.block>span,.header:not(.mobile) .second-nav>li>a>span{position:relative;font-size:14px;padding:2px 0}.header:not(.mobile) .second-nav>li>.block>span:after,.header:not(.mobile) .second-nav>li>a>span:after{content:"";position:absolute;width:0;height:1px;background:#fff;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);top:100%;-webkit-transition:width .3s;transition:width .3s}.header:not(.mobile) .second-nav>li>.block:hover>span:after,.header:not(.mobile) .second-nav>li>a:hover>span:after{width:100%}.header:not(.mobile) .third-nav{width:200px;position:absolute;left:100%;top:0;-webkit-transition:clip .2s linear;transition:clip .2s linear;background:rgba(0,0,0,.8);clip:rect(0,1200px,0,-1000px)}.header:not(.mobile) .third-nav.show{clip:rect(0,1200px,300px,-1000px)}.header:not(.mobile) .third-nav:before{top:2px}.header:not(.mobile) .third-nav .title{position:relative;cursor:default}.header:not(.mobile) .third-nav li:not(.title){height:42px;line-height:42px;margin:0;text-align:center}.header:not(.mobile) .third-nav li:not(.title) .block,.header:not(.mobile) .third-nav li:not(.title) a{display:block;line-height:42px;color:#fff;font-size:14px}.header:not(.mobile) .third-nav li:not(.title) .block span,.header:not(.mobile) .third-nav li:not(.title) a span{position:relative;padding:2px 0}.header:not(.mobile) .third-nav li:not(.title) .block span:after,.header:not(.mobile) .third-nav li:not(.title) a span:after{content:"";position:absolute;width:0;height:1px;background:#fff;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);top:100%;-webkit-transition:width .3s;transition:width .3s}.header:not(.mobile) .third-nav li:not(.title) .block:hover span:after,.header:not(.mobile) .third-nav li:not(.title) a:hover span:after{width:100%}.header:not(.mobile) .third-nav .title{font-size:14px;line-height:32px;color:#969696;line-height:42px;background:rgba(41,41,41,.69)}.header.mobile{padding:.7rem 1.2rem;height:2.5rem;font-size:.8rem;font-weight:500;position:absolute}.header.mobile .logo{position:relative;top:0;height:1rem}.header.mobile .cn-btn,.header.mobile .en-btn{background:none}.header.mobile.show .mobile-header{position:absolute;width:100%;height:2.5rem;background:rgba(0,0,0,.9);top:0;left:0;z-index:2}.header.mobile.show .mobile-header .logo{top:.7rem;left:1.2rem}.header.mobile .menu-icon{width:1rem;height:1rem;background:url(../img/menu-white.0a4862c4.svg) no-repeat 50%;background-size:.7rem;position:absolute;right:0;top:0;width:2.8rem;height:2.5rem;z-index:99}.header.mobile i.passive{color:#acacac}.header.mobile.dark .menu-icon{background:url(../img/menu.bc662d52.svg) no-repeat 50%;background-size:1.2rem}.header.mobile.show{height:100%;background:#fff}.header.mobile.show .menu-icon{background:url(../img/close-white.8eff44f3.svg) no-repeat 50%;background-size:.9rem}.header.mobile .menu-list{position:absolute;height:0;overflow:auto;top:0;left:0;width:100%;-webkit-box-sizing:border-box;box-sizing:border-box;background:#000;color:#fff;line-height:2.8rem;margin-top:2.5rem}.header.mobile .menu-list a:active{background:#666}.header.mobile .menu-list>a{padding-left:2.4rem}.header.mobile .menu-list>a,.header.mobile .menu-list>div{display:block;margin:0 auto;position:relative}.header.mobile .menu-list>a>span,.header.mobile .menu-list>div>span{display:block;padding-left:2.4rem;position:relative}.header.mobile .menu-list>a>span:after,.header.mobile .menu-list>div>span:after{content:"";position:absolute;width:.8rem;height:.8rem;background:url(../img/arrows@3x.174f0f0f.svg) no-repeat 50%;background-size:contain;right:1rem;top:1rem;-webkit-transition:all .1s linear;transition:all .1s linear}.header.mobile .menu-list>a span.active,.header.mobile .menu-list>div span.active{background:#222}.header.mobile .menu-list>a span.active:before,.header.mobile .menu-list>div span.active:before{content:"";position:absolute;width:calc(100% - 2rem);height:1px;background:#4a4a4a;top:2.5rem;left:1rem}.header.mobile .menu-list>a span.active:after,.header.mobile .menu-list>div span.active:after{-webkit-transform-origin:50% 50%;transform-origin:50% 50%;-webkit-transform:rotate(-180deg);transform:rotate(-180deg)}.header.mobile .menu-list.show{height:calc(100% - 2.5rem)}.header.mobile .second-nav{position:relative;border:0;line-height:2.8rem;width:100%;height:auto;background:#222;overflow:hidden;-webkit-transition:.2s;transition:.2s}.header.mobile .second-nav.show>li{height:2.8rem}.header.mobile .second-nav.show>li.has-child{height:auto}.header.mobile .second-nav.show>li.has-child .block>span:after{content:"";position:absolute;width:.8rem;height:.8rem;background:url(../img/arrows@3x.174f0f0f.svg) no-repeat 50%;background-size:contain;right:1rem;top:1rem;-webkit-transition:all .1s linear;transition:all .1s linear}.header.mobile .second-nav.show>li.has-child .block>span.active:after{-webkit-transform:rotate(-180deg);transform:rotate(-180deg)}.header.mobile .second-nav>li{position:relative;width:100%;text-align:left;border:0;height:0;display:block;white-space:normal;overflow:visible;-webkit-transition:.2s;transition:.2s}.header.mobile .second-nav>li>a,.header.mobile .second-nav>li>div{display:block}.header.mobile .second-nav>li>a>span,.header.mobile .second-nav>li>div>span{display:block;padding-left:4rem}.header.mobile .third-nav{position:relative}.header.mobile .third-nav.show li{height:2.8rem}.header.mobile .third-nav.show li.title:nth-child(5):after{content:"";position:absolute;width:calc(100vw - 2rem);left:1rem;height:1px;top:0;background:#4a4a4a}.header.mobile .third-nav li{-webkit-transition:.2s;transition:.2s;height:0}.header.mobile .third-nav li a{display:block}.header.mobile .third-nav li a span{display:block;padding-left:10.8rem}.header.mobile .third-nav li.title{position:absolute;padding:0;color:#a2a2a2}.header.mobile .third-nav li.title span{padding-left:5.75rem}.english .header:not(.mobile) .f-right .block:first-of-type .second-nav{width:280px}.english .header.mobile .menu-list>.block>span,.english .header.mobile .menu-list>a{padding-left:1.2rem;letter-spacing:0}.english .header.mobile .second-nav>li>a,.english .header.mobile .second-nav>li>div{display:block}.english .header.mobile .second-nav>li>a span,.english .header.mobile .second-nav>li>div span{padding-left:2.2rem;letter-spacing:0}.english .header.mobile .third-nav li.title>span{padding-left:3.65rem;letter-spacing:0}.english .header.mobile .third-nav li:not(.title) a span{padding-left:12.8rem;letter-spacing:0}