*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100%;overflow-x:hidden;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;font-size:16px;color:#333;background:#f5f5f5}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#667eea;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#764ba2}