:root{--font-sans:ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, monospace}body{min-width:320px}@keyframes auth-enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:no-preference){.auth-card{animation:.22s ease-out both auth-enter}.auth-step{animation:.16s ease-out both auth-enter}}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}@media (max-width:640px){input,textarea,select{font-size:16px!important}}