@-webkit-keyframes move{0%{bottom:-60px}to{bottom:-70px}}@keyframes move{0%{bottom:-60px}to{bottom:-70px}}*{padding:0;margin:0;box-sizing:border-box;outline:0}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}body{font-family:"Microsoft Yahei","PingFangSC-Regular","Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px;line-height:1.3682;color:#333;background-color:#fff}button,input,select,textarea{font:inherit;color:inherit;font-family:inherit;font-size:inherit}button,select,textarea{line-height:inherit}textarea{resize:none;outline:0}a:focus,a:hover{outline:0}article,aside,details,figcaption,figure,footer,header,hgroup,main,menu,nav,section,summary{display:block}[hidden],template{display:none}a{background-color:transparent;color:#333;text-decoration:none}a.em:hover{text-decoration:underline}abbr[title]{border-bottom:1px dotted}b,optgroup,strong{font-weight:700}em,i{font-style:normal}dfn{font-style:italic}img{border:0;max-width:100%;vertical-align:middle}svg:not(:root){overflow:hidden}button{overflow:visible}button,select{text-transform:none}button,html input[type=button],input[type=reset],input[type=submit]{-webkit-appearance:button;cursor:pointer}button[disabled],html input[disabled]{cursor:default}button::-moz-focus-inner,input::-moz-focus-inner{padding:0;border:0}input{line-height:normal}input:active,input:focus{outline:0}input[type=checkbox],input[type=radio]{box-sizing:border-box;padding:0}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{height:auto}input[type=search]{box-sizing:content-box;-webkit-appearance:textfield}input[type=search]::-webkit-search-cancel-button,input[type=search]::-webkit-search-decoration{-webkit-appearance:none}fieldset{padding:.35em .625em .75em;margin:0 2px;border:1px solid silver}legend{padding:0;border:0}table{border-spacing:0;border-collapse:collapse}td,th{padding:0;font-weight:400}ol,ul{list-style:none}ins,u{text-decoration:none}.container{position:relative;width:1200px;margin-right:auto;margin-left:auto}.clearfix,.container{clear:both;*zoom:1}.clearfix:after,.container:after,.nav:after{display:table;content:" ";clear:both}.fl{float:left}.fr{float:right}.hide{display:none!important}.show{display:block!important}.hidden{visibility:hidden!important}a.icolor{color:inherit}a:hover{text-decoration:none}.h1,.h2,.h3,.h4,.h5,.h6,h1,h2,h3,h4,h5,h6{margin:0;font-family:inherit;color:#333;font-weight:400}.h1,h1{font-size:36px;line-height:48px}.h2,h2{font-size:30px;line-height:40px}.h3,h3{font-size:24px;line-height:32px}.h4,h4{font-size:20px;line-height:26px}.h5,h5{font-size:18px;line-height:24px}.h6,h6{font-size:16px;line-height:22px}.header,.header .nav li::after{position:absolute;left:0;width:100%}.header{top:0;height:100px;z-index:55;padding:20px 50px 0;clear:both}.header .logo{float:left;width:134px;height:45px;background-image:url(//static1.bitautoimg.com/yc-pc/guanwang-pc/assets/images/logo_filter.png);background-repeat:no-repeat;margin-top:10px}.header .nav{float:right;padding-top:20px;transition:all 300ms ease;overflow:hidden}.header .nav li{float:left;color:#fff;margin-left:35px;position:relative;font-size:16px}.header .nav li a{display:inline-block;font-weight:700;padding:0 3px 10px;color:#fff}.header .nav li::after{content:"";display:block;bottom:0;transition:all ease .5s}.header .nav li.cur::after,.header .nav li:hover::after{height:4px;background-color:#ff3232}.header .nav-m-btn{display:none;width:23px;cursor:pointer;height:18px;float:right;background-image:url(//static1.bitautoimg.com/yc-pc/guanwang-pc/assets/images/nav_m_btn.png);background-repeat:no-repeat;background-size:23px 18px;margin-top:5px;transition:all 200ms ease;position:relative;z-index:52}.header .nav-m-btn.close{height:23px;background-image:url(//static1.bitautoimg.com/yc-pc/guanwang-pc/assets/images/nav_m_close.png);background-size:23px 23px}.blue-hd .logo{background-image:url(//static1.bitautoimg.com/yc-pc/guanwang-pc/assets/images/logo.png)}.blue-hd .nav-m-btn{background-image:url(//static1.bitautoimg.com/yc-pc/guanwang-pc/assets/images/nav_m_btn_fixed.png);background-repeat:no-repeat}.blue-hd .nav li a,.header-fixed .nav li{color:#333}.header-fixed{position:fixed;top:0;left:0;height:95px;padding-top:13px;transform:translateY(-100%);background-color:#fff;box-shadow:0 0 6px 0 rgba(0,0,0,.2);z-index:52}.header-fixed .logo{background-image:url(//static1.bitautoimg.com/yc-pc/guanwang-pc/assets/images/logo.png)}.header-fixed .nav li a{color:#333;padding-bottom:40px}.header-fixed-show{transform:translateY(0)}.header-animate{transition:transform 200ms ease}@media screen and (max-width:1100px){.header .nav li{margin-left:23px}}@media screen and (max-width:1200px){.header .nav li{margin-left:23px}}@media screen and (max-width:1100px){.header .nav li{margin-left:12px}}@media screen and (max-width:979px){.header{padding-left:30px;padding-right:20px;height:60px}.header .logo{width:80px;height:30px;background-size:80px 30px;margin-top:0}.header .nav{position:fixed;top:0;left:0;width:100%;height:0;background-color:#fff;padding-top:110px;overflow:hidden;transform:translateY(-100%)}.header .nav li{width:100%;text-align:center;height:50px;line-height:50px;float:none}.header .nav li a{color:#333}.header .nav li::after{width:100px;left:50%;margin-left:-50px}.header .nav.nav-s{height:100%;min-height:667px;transform:translateY(0);visibility:visible}.header .nav-m-btn{display:block}.header-fixed .nav-m-btn{background-image:url(//static1.bitautoimg.com/yc-pc/guanwang-pc/assets/images/nav_m_btn_fixed.png);background-repeat:no-repeat}}@media screen and (max-width:767px){.header{height:60px}.header .nav li{height:48px;line-height:48px;margin-left:0}.nav-m-btn{display:block}}@media screen and (max-width:480px){.header{height:60px}}@media screen and (max-width:320px){.header .nav li{height:40px;line-height:40px}}.footer{width:100%;font-size:14px;line-height:20px;padding:40px 50px;overflow:hidden;border-top:1px solid #e5e5e5;color:#999}.footer .copyright{float:left}.footer .other{float:right}.footer .other a{color:#999;position:relative;font-size:14px;float:left}.footer .other .sep{float:left;width:1px;height:10px;background-color:#999;display:inline-block;margin:5px 5px 0}@media screen and (max-width:979px){.footer{padding:20px}.footer .other{float:left}}.banner-con,.banner-con .banner{width:100%;transition:height 2000ms cubic-bezier(.645,.045,.355,1)}.banner-con{position:relative;overflow:hidden;height:780px}.banner-con .banner{height:100%}.banner-con .banner:hover img{transform:scale(1.05)}.banner-con .banner img{transition:transform 2s ease;width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.banner-con .banner-title{width:100%;color:#fff;font-size:56px;font-weight:700;text-align:center;letter-spacing:20px;position:absolute;top:50%;left:0;margin-top:-70px;opacity:1;transition:opacity .7s}.banner-con .banner-title i{width:50px;height:25px;display:block;background-image:url(//static1.bitautoimg.com/yc-pc/jituanzhan-pc/images/down.png);background-repeat:no-repeat;position:absolute;bottom:-60px;left:50%;z-index:51;margin-left:-25px;-webkit-animation:move .5s ease 0s infinite alternate;animation:move .5s ease 0s infinite alternate}@media screen and (max-width:767px){.banner-con{height:420px}}@media screen and (max-width:480px){.banner-con .banner-title{letter-spacing:3px;font-size:32px;margin-top:-30px}.banner-con i{transform:scale(.6)}}@media screen and (max-width:320px){.banner-con .banner-title{letter-spacing:1px;min-width:320px;font-size:26px}}.prohibit{position:fixed;height:100%}.main-content{color:#333;letter-spacing:0}.main-content p{text-align:justify;word-break:break-all}.main-content .title{margin-bottom:25px;font-size:40px;line-height:52px;font-weight:700;text-align:center}.main-content .title::after{content:"";display:block;margin:8px auto 0;width:40px;height:6px;text-align:center;background:#4283d9}.main-content .button{display:block;margin:30px auto 0;padding:19px 0;width:150px;font-size:16px;line-height:21px;text-align:center;background:#fff;border:2px solid #e0e0e0;border-radius:30px}.main-content .bg-img,.main-content .bg-img img{width:100%}.main-content .about{padding:40px 20px;background:#fff}.main-content .about .content,.main-content .news .news-list{margin:0 auto}.main-content .about .content p{position:relative;font-size:16px;line-height:30px}.main-content .news{padding:40px 20px}.main-content .news .news-list .news-item{padding:30px 0;border-bottom:1px solid #ececec}.main-content .news .news-list .news-item .news-title{display:block;font-size:28px;line-height:30px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.main-content .news .news-list .news-item .news-content{margin-top:14px;font-size:16px;line-height:30px;color:#999}.main-content .news .news-list .news-item .news-date{margin-top:3px;font-size:16px;line-height:30px;color:#999}.main-content .news .news-list .news-item:first-of-type{padding-top:0}.main-content .business{position:relative}.main-content .business .bg-img img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.main-content .business .business-container{position:absolute;top:0;left:0;right:0;margin:0 auto}.main-content .business .business-container .business-title{margin-top:65px;font-size:40px;font-weight:700;line-height:52px;color:#fff;text-align:center}.main-content .business .business-container .logo-wrapper{margin:30px auto;overflow:hidden}.main-content .business .business-container .business-logo{float:left;display:block;width:50%;background-color:#fff}.main-content .business .business-container .button{position:relative;color:#fff;background:0 0;border:2px solid #fff;border-radius:30px}.main-content .contact{padding:65px 20px 95px}.main-content .contact .contact-wrapper{margin:0 auto;overflow:hidden;width:380px}.main-content .contact .contact-wrapper .contact-item{display:block}.main-content .contact .contact-wrapper .contact-item img{width:auto;height:30px}.main-content .contact .contact-wrapper .contact-item h4{margin-top:6px;font-size:18px;line-height:30px;font-weight:700}.main-content .contact .contact-wrapper .contact-item p{margin-top:5px;font-size:16px;color:#999;line-height:30px}@media screen and (min-width:980px){.main-content .about,.main-content .news{padding:60px 10px}.main-content .about .content,.main-content .news .news-list{width:960px}.main-content .business .bg-img{height:780px}.main-content .business .logo-wrapper{width:960px}}@media screen and (min-width:768px) and (max-width:979px){.main-content .about .content,.main-content .news .news-list{width:100%}.main-content .business .bg-img{height:750px}.main-content .business .logo-wrapper{padding:0 20px;width:100%}}@media screen and (max-width:767px){.main-content .title{margin-bottom:19px;font-size:22px;line-height:29px}.main-content .title::after{content:"";display:block;margin:5px auto 0;width:31px;height:5px}.main-content .button{display:block;margin-top:20px;padding:8px 20px;width:94px;font-size:12px;line-height:16px}.main-content .about,.main-content .news{padding:32px 15px}.main-content .about .content,.main-content .news .news-list{width:100%}.main-content .about .content p{font-size:12px}.main-content .news .news-list .news-item{padding:20px 0 27px}.main-content .news .news-list .news-item .news-title{font-size:18px;line-height:24px}.main-content .news .news-list .news-item .news-content{margin-top:9px;font-size:12px;line-height:22px}.main-content .news .news-list .news-item .news-date{margin-top:5px;font-size:12px;line-height:16px}.main-content .business .business-container .business-title{margin-top:32px;font-size:22px}.main-content .business .logo-wrapper{padding:0 20px;width:100%}.main-content .contact{padding:30px 20px 50px}.main-content .contact .contact-wrapper{max-width:360px}.main-content .contact .contact-wrapper .contact-item h4{margin-top:5px;font-size:14px}.main-content .contact .contact-wrapper .contact-item p{margin-top:2px;font-size:12px;line-height:30px}}@media screen and (min-width:601px) and (max-width:767px){.business .bg-img{height:600px}}@media screen and (max-width:600px){.business .bg-img{height:500px}}@media screen and (max-width:400px){.business .bg-img{height:400px}}