*,:after,:before{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;color:#333;background:#fff;line-height:1.8;-webkit-font-smoothing:antialiased}h1{font-size:24px;font-weight:700;margin-bottom:8px}h2{font-size:18px;font-weight:600;margin-bottom:6px}a{color:#2563eb;text-decoration:none}a:hover{text-decoration:underline}@keyframes spin{to{transform:rotate(1turn)}}