:root{color:#182230;background:#f3f6fa;font-family:Inter,Noto Sans SC,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0}main{width:min(760px,calc(100% - 32px));margin:0 auto;padding:48px 0;display:grid;gap:20px}header{text-align:center}.brand{color:#1769aa;font-weight:700;letter-spacing:.12em}h1{margin:8px 0;font-size:clamp(28px,6vw,40px)}header p,.card>p{color:#5c6b7a}.card{padding:24px;border:1px solid #d8e0e8;border-radius:14px;background:#fff;box-shadow:0 8px 30px #19324b12}form{display:grid;gap:14px}label{display:grid;gap:6px;font-weight:600}input{width:100%;padding:11px 12px;border:1px solid #b8c4d0;border-radius:8px;font:inherit}button{justify-self:start;padding:10px 18px;border:0;border-radius:8px;color:#fff;background:#1769aa;font:inherit;cursor:pointer}button:disabled{opacity:.55;cursor:wait}dl{display:grid;grid-template-columns:minmax(120px,1fr) 2fr;gap:8px 12px;overflow-wrap:anywhere}dt{color:#5c6b7a}dd{margin:0}.message{padding:10px;border-radius:8px;color:#7d3f00;background:#fff5e5}.result{margin-top:18px;padding:16px;border-radius:10px;background:#edf8f0}@media (max-width:560px){main{padding:24px 0}.card{padding:18px}dl{grid-template-columns:1fr}}