body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:#f6f7fb;color:#1c2333;line-height:1.65}
main{max-width:760px;margin:40px auto 70px;padding:0 20px}
h1{font-size:1.6rem;letter-spacing:-.02em}
h2{font-size:1.05rem;margin-top:28px;color:#1d3f9e}
p,li{font-size:.94rem}
.placeholder{background:#fff3cd;border-radius:4px;padding:0 6px;font-weight:700}
a{color:#2f5fe0}
.back{display:inline-block;margin-bottom:22px;font-size:.85rem;text-decoration:none;font-weight:600}
.note{background:#eef2fc;border-left:4px solid #2f5fe0;padding:10px 14px;border-radius:8px;font-size:.85rem}