:root{color-scheme:light;font:16px/1.6 system-ui,"Microsoft YaHei",sans-serif;color:#243044;background:#f4f6fa}
.secondary{width:auto;background:#edf2ff;color:#345dd5;font-size:14px;margin-bottom:12px}
*{box-sizing:border-box}body{margin:0;padding:40px 20px}main{max-width:760px;margin:auto;background:white;border:1px solid #e4e8ef;border-radius:20px;padding:36px;box-shadow:0 12px 40px #172b4d0a}.brand{font-weight:750;color:#345dd5;letter-spacing:.04em}h1{font-size:30px;margin:12px 0 4px}header p,fieldset p,footer{color:#6b7280}fieldset{border:0;border-top:1px solid #e4e8ef;margin:28px 0 0;padding:20px 0 0}legend{font-size:18px;font-weight:650;padding-right:12px}fieldset p{margin:0 0 12px;font-size:14px}label{display:block;margin-bottom:16px;font-size:14px;font-weight:550}input{display:block;width:100%;padding:11px 12px;margin-top:6px;border:1px solid #cdd5e0;border-radius:8px;font:inherit;font-size:15px;color:inherit;background:#fff}input:focus-visible{outline:3px solid #b7c8ff;outline-offset:1px;border-color:#345dd5}.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}button,a{background:#345dd5;border:0;border-radius:9px;color:white;padding:13px 22px;font:inherit;cursor:pointer;text-decoration:none}button{width:100%;font-weight:650}button:disabled{opacity:.65;cursor:wait}#status{color:#b42318;font-size:14px}footer{font-size:12px;margin-top:24px;text-align:center}[hidden]{display:none!important}@media(max-width:540px){body{padding:16px 10px}main{padding:22px 18px}.row{grid-template-columns:1fr;gap:0}h1{font-size:25px}}