.header-box{height: 2.75rem;background-color: #fff;}
.header-box .header{height: 2.75rem;position: fixed;background-color: #fff;width: 100%;z-index: 10001;left: 0;top: 0;border-bottom: 1px solid #f1f1f1;}
.header-box .header .nav-name{color: #333;margin-left: .9375rem;font-size: 1.0625rem;}
.header-box .header .nav{margin-left: .875rem;}
.header-box .header .nav .icon-back-top{margin-top: 0.2rem;}
.header-box .header .nav-search{margin-right: .875rem;}
.header-box .header .nav-search .icon-serach-r{margin-right: 1.25rem;}