*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Meiryo,sans-serif;background:#f0f2f5;color:#1a1a2e;min-height:100vh}button{cursor:pointer}a{text-decoration:none;color:inherit}input[type=time]::-webkit-calendar-picker-indicator{display:none}input[type=time]::-webkit-inner-spin-button{display:none}