.header{width:100%;height:100%;background:#fff;margin-bottom:1px}.header__main{width:950px;margin:0 auto}.header__nav{padding-top:20px}.header__logo{float:left;width:100px;margin-top:10px;margin-right:30px}.header__title{height:50px;line-height:50px;background:#fff;padding-left:29px;margin-bottom:15px}.header__title__txt{color:#333}.header__title__item{float:left;margin-right:36px;color:#333;font-weight:700;font-size:16px;position:relative;text-align:center;padding:0 10px;cursor:pointer;display:block}.header__title__item:after{position:relative;display:block;content:"";left:-10%;bottom:4px;width:0;height:4px;background:#fdd000;margin:0 auto}.header__title__item:after,.header__title__item:hover:after{-webkit-transition:width .3s ease-in-out;-o-transition:width .3s ease-in-out;transition:width .3s ease-in-out}.header__title__item:hover:after{width:120%}.service-agreement{padding-top:45px;width:770px;margin:0 auto}.service-agreement__head{height:32px;line-height:32px;margin-bottom:40px;position:relative}.service-agreement__head__title{font-size:20px;font-weight:700;text-align:center;margin-bottom:40px}.service-agreement__head__down{position:absolute;right:0;top:0}.root{font-size:14px}.root .a-center-layout__content{width:1000px}.root__main{text-align:justify;line-height:25px;padding-bottom:50px;background:#fff;margin-bottom:1px}