:root{color:#182a37;background:#f3f6f8;font-family:system-ui,Microsoft YaHei,sans-serif}body{margin:0;padding:64px 24px}main{background:#fff;border:1px solid #dce4ea;border-radius:12px;max-width:640px;margin:auto;padding:32px}.eyebrow{color:#23628b;font-weight:700}h1{font-size:28px}p{line-height:1.7}button{font:inherit;color:#fff;cursor:pointer;background:#23628b;border:0;border-radius:6px;padding:10px 18px}button:disabled{opacity:.6;cursor:wait}button:focus-visible{outline-offset:3px;outline:3px solid #76bce5}.note{color:#586c79;font-size:14px}@media (width<=480px){body{padding:24px 12px}main{padding:20px}}