body{margin:0;background:#f7f9fc;color:#1f2937;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:max(24px,env(safe-area-inset-top)) 20px max(40px,env(safe-area-inset-bottom))}
a{color:#1a6fd6}.back{text-decoration:none;font-weight:600}h1{margin:.6em 0 .2em;font-size:28px}h2{font-size:18px;margin:1.6em 0 .3em}
.muted{color:#64748b;font-size:14px}footer{margin-top:40px;padding-top:14px;border-top:1px solid #e3e9f0;font-size:13px;color:#64748b}