:root { color: #17304d; font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; background: #f4f8fc; }
body { margin: 0; }
main { max-width: 720px; margin: 0 auto; padding: 28px 18px 56px; }
h1 { margin: 6px 0 4px; font-size: 1.6rem; letter-spacing: -.02em; }
h2 { margin: 28px 0 8px; font-size: 1.05rem; }
p, li { color: #2c4663; }
ul { padding-left: 1.2rem; }
.meta { color: #6b7f94; font-size: .85rem; }
.back { display: inline-block; margin-bottom: 8px; font-size: .85rem; }
a { color: #176fba; }
.caps { font-size: .93rem; }