*{box-sizing:border-box}html{font-size:14px;-webkit-text-size-adjust:100%}body,h1,h2,h3,p,ul,ol,li,dl,dd{margin:0}ul,ol{padding:0;list-style:none}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:#202124;background:#fff}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input{font:inherit}button{cursor:pointer;border:0;background:none}