html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0;border:0;font:inherit;font-size:100%;vertical-align:baseline}html{line-height:1}ol,ul{list-style:none}table{border-collapse:collapse;border-spacing:0}caption,th,td{text-align:left;font-weight:normal;vertical-align:middle}q,blockquote{quotes:none}q:before,q:after,blockquote:before,blockquote:after{content:"";content:none}a img{border:none}elements-of-type(html5-block){display:block}.mt0{margin-top:0px !important}.mt38{margin-top:38px !important}.mt80{margin-top:80px !important}.mt120{margin-top:120px !important}.mr0{margin-right:0px !important}.mb0{margin-bottom:0px !important}.mb77{margin-bottom:77px !important}.mb135{margin-bottom:135px !important}.ml0{margin-left:0px !important}html,body{height:100%;font-family:"Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,sans-serif}a{text-decoration:none}.container{width:1200px;margin:0 auto}.infi-sdk{max-width:1920px;margin:0 auto}.infi-sdk__header h3{margin-bottom:45px;font-size:36px;font-weight:500;color:#333;text-align:center}.infi-sdk__header p{font-size:18px;color:rgba(41,16,16,0.6);text-align:center}.infi-sdk__img{display:block;margin:0 auto}.banner-wrapper{background:url(../images/banner.png) no-repeat center/cover;color:white}.banner-wrapper .leading{margin-top:300px;font-size:48px;font-weight:500}.banner-wrapper .slogan{margin-top:40px;font-size:18px;font-weight:500}.nav-wrapper{height:102px;box-sizing:border-box;overflow:hidden;*zoom:1}.nav-wrapper h1{float:left;width:134px;height:59px;margin-top:21px;background:url(../images/logo.png) no-repeat center/cover}.nav__list{margin-left:40px;float:left;display:flex;align-items:center}.nav__item{padding:0 40px}.nav__item a{display:block;height:101px;line-height:101px;font-size:16px;color:rgba(255,255,255,0.6)}.nav__item.is-active a{color:white;border-bottom:1px solid white}.footer__wrapper{height:431px;background:url(../images/footer/bg.png) no-repeat center/cover}.footer__top{display:flex;justify-content:space-between;align-items:flex-end;padding:20px 0}.footer__top h3{width:134px;height:59px;background:url(../images/logo.png) no-repeat center/cover}.footer__top span{color:white;font-size:14px}.footer__mid{display:flex;justify-content:space-between;padding:40px 0 54px}.footer__friends-link h4{margin-bottom:40px;font-size:20px;font-weight:500;color:white}.footer__friends-link ul{display:flex}.footer__friends-link ul li{margin-right:120px}.footer__friends-link ul a{font-size:18px;color:rgba(255,255,255,0.5)}.footer__contact-us{color:white}.footer__contact-us ul li{display:flex;justify-content:flex-end;align-items:center;margin-bottom:40px}.footer__contact-us ul li:last-child{margin-bottom:0}.footer__contact-us ul li span{font-size:14px;margin-left:30px}.footer__contact-us ul li span.is-phone{font-size:24px}.footer__contact-us ul li span.is-website{font-size:28px}.footer__contact-us ul li span.is-address{font-size:16px}.footer__bottom{text-align:center;border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;box-sizing:border-box}.footer__bottom .copyright{font-size:14px;line-height:30px;color:rgba(255,255,255,0.6)}