:root{font-family:system-ui,-apple-system,Hiragino Sans,Noto Sans JP,sans-serif;color:#1f2328;background:#f6f8fa}body{margin:0}.page{max-width:1250px;margin:0 auto;padding:24px 16px}.card{background:#fff;border:1px solid #d0d7de;border-radius:8px;padding:16px 20px;max-width:480px}.card h2{margin-top:0;font-size:1.1rem}.form{display:grid;gap:12px}.form label{display:grid;gap:4px}.form input{font:inherit;padding:6px 8px;border:1px solid #d0d7de;border-radius:6px}button{font:inherit;padding:6px 14px;border:1px solid #d0d7de;border-radius:6px;background:#f6f8fa;cursor:pointer}button.danger{color:#cf222e}.account{display:grid;grid-template-columns:6em 1fr;gap:8px 12px;margin:0 0 16px}.account dt{color:#57606a}.account dd{margin:0}.actions{display:flex;gap:12px;flex-wrap:wrap}.notice{color:#57606a;font-size:.9rem}.error{color:#cf222e}