:root{font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:#181b23;background:#f7f8fa}
*{box-sizing:border-box}body{margin:0;min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:40px 24px 80px}
main{width:100%;max-width:430px;background:white;border:1px solid #e4e7ee;border-radius:16px;padding:40px;box-shadow:0 8px 32px #18203806}
.brand{font-weight:650;color:#2f6bff;text-decoration:none;font-size:25px;letter-spacing:1px;display:inline-flex;flex-direction:column;gap:2px}.brand span{font-size:11px;font-weight:400;color:#777e8b;letter-spacing:2px}
h1{font-size:23px;margin:34px 0 8px;font-weight:600}p{color:#777e8b;margin:0}label{display:block;margin:22px 0 8px;color:#59617a;font-size:13px}
input,button{width:100%;font:inherit;padding:12px 14px;border-radius:8px;border:1px solid #d3d8e4}input{background:#fff;color:#181b23}input::placeholder{color:#8b929e}
input:focus{outline:2px solid #2f6bff;outline-offset:2px}button{background:#2f6bff;color:white;font-weight:550;border:0;cursor:pointer}button:hover{background:#2456db}button:focus-visible{outline:2px solid #2f6bff;outline-offset:3px}button:disabled{opacity:.6;cursor:wait}
#error{color:#de4a4f;font-size:13px;min-height:22px;margin:12px 0}.help{font-size:11px;margin:24px 0 0;line-height:1.9}footer{position:fixed;bottom:28px;color:#8b929e;font-size:11px;letter-spacing:1px}
@media(max-width:480px){body{padding:24px 20px 60px}main{padding:30px 24px}input{font-size:16px}h1{font-size:22px}footer{bottom:18px}}