.toTop-container{position:fixed;bottom:6.25rem;right:6.25rem;z-index:99}.webthings-container-platform{width:75rem;margin:0 auto}.webthings-container-banner{height:41.5625rem}.webthings-container-banner img{width:100%;height:100%}.webthings-container-wifi{background-color:#f5f7fc;padding-bottom:5.125rem;padding-top:7.625rem}.webthings-container-wifi-title{margin-top:0;margin-bottom:1.625rem}.webthings-container-wifi img{margin:0 auto;margin-top:5.375rem;height:29.9375rem}.webthings-container-platform{padding-top:7.5rem;height:54.5625rem;background-color:#fff}.webthings-container-platform-title{margin-top:0;margin-bottom:5.0625rem}.webthings-container-platform-pic{margin:0 auto;width:100%}.webthings-container-lib{height:51.6875rem}.webthings-container-lib img{width:100%;height:100%}.webthings-container-machineroom{height:61.1875rem}.webthings-container-machineroom img{width:100%;height:100%}