:root{--font-sans:Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;color:#171a1c;font-family:var(--font-sans);font-synthesis:none;background:#f4f5f3}*{box-sizing:border-box}html,body{scroll-behavior:smooth;min-height:100%;margin:0}body{background:#f4f5f3;min-width:320px}button,input,textarea{font:inherit;letter-spacing:0}button{cursor:pointer}a{color:inherit}img,svg{display:block}::selection{color:#151719;background:#ff735d}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}