.faq{max-width:900px;margin:2rem auto;padding:0 1rem;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.faq h2{font-size:1.6rem;margin:0 0 1rem}
.faq details{border:1px solid rgba(0,0,0,.12);border-radius:10px;padding:.75rem 1rem;margin:.75rem 0;background:#fff}
.faq summary{cursor:pointer;font-weight:600}
.faq details[open]{box-shadow:0 6px 18px rgba(0,0,0,.08)}
.faq .a{margin:.5rem 0 0;line-height:1.5}