:root{--font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Helvetica,Arial,sans-serif;--font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,monospace}*,:after,:before{margin:0;padding:0;box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);overflow-x:hidden;min-height:100vh}img,svg{max-width:100%}button{font:inherit;cursor:pointer}