:root{color-scheme:light;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;--bg:#f5f6f1;--text:#1f241d;--muted:#687064;--line:#dfe3d7;--yellow:#f0b90b;--panel:#fff}
*{box-sizing:border-box}body{margin:0;min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:20px;background:var(--bg);color:var(--text)}
main{width:min(420px,100%);padding:30px;border:1px solid var(--line);border-radius:12px;background:var(--panel);box-shadow:0 18px 48px rgba(38,43,31,.1)}
h1{margin:0;font-size:30px;line-height:1.15}p{margin:9px 0 22px;color:var(--muted);font-size:14px;line-height:1.5}label{display:block;margin-bottom:8px;font-weight:700}
input{width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:8px;font:inherit;outline:none}input:focus{border-color:var(--yellow);box-shadow:0 0 0 3px rgba(240,185,11,.18)}
button{width:100%;height:48px;margin-top:14px;border:0;border-radius:8px;background:var(--yellow);color:#181a20;font:inherit;font-weight:900;cursor:pointer}
.error{margin:0 0 14px;padding:10px 12px;border-radius:8px;background:#fff1f0;color:#b42318;font-size:13px}.hint{margin:16px 0 0;text-align:center;font-size:12px}
@media(max-width:480px){body{align-items:start;padding-top:max(72px,env(safe-area-inset-top))}main{padding:24px 20px}}