:root { --ground: #F2F7F6; --ink: #0C2B2E; --soft: #35575A; --muted: #4D6669; --teal: #0B5D5E; --blue: #1B3A6B; --line: #D5E2E0; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 80px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 32px; }
.mark { width: 36px; height: 36px; border-radius: 50%; background: var(--blue); display: grid; place-items: center; color: #fff; font-size: 18px; }
.brand { font-family: Georgia, "Times New Roman", serif; font-size: 22px; color: var(--ink); text-decoration: none; }
h1 { font-family: Georgia, "Times New Roman", serif; font-weight: 400; font-size: 40px; line-height: 1.1; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 36px 0 8px; }
p, li { color: var(--soft); }
a { color: var(--teal); }
.updated { color: var(--muted); font-size: 15px; margin-bottom: 28px; }
.note { border-left: 3px solid var(--line); padding-left: 14px; color: var(--muted); font-size: 15px; }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 15px; color: var(--muted); }