:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: #263342; background: #f7f9fb; }
* { box-sizing: border-box; }
body { margin: 0; font-size: 16px; line-height: 1.85; overflow-wrap: anywhere; }
header, main, footer { width: min(100% - 40px, 860px); margin: auto; }
header { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 24px 0; }
a { color: #256b69; text-underline-offset: 4px; }
nav { display: flex; gap: 20px; }
a[aria-current] { font-weight: 700; }
a:focus-visible { outline: 2px solid #256b69; outline-offset: 5px; }
article { background: white; padding: 40px 48px; border: 1px solid #e7ebef; border-radius: 16px; }
h1 { font-size: 28px; text-align: center; line-height: 1.4; margin: 0 0 20px; }
h2 { font-size: 21px; line-height: 1.5; margin: 34px 0 14px; }
h3 { font-size: 17px; margin: 22px 0 8px; }
p { margin: 0 0 12px; }
.date { color: #647180; text-align: center; font-size: 14px; margin-bottom: 4px; }
.date + .paragraph { margin-top: 28px; }
.list { margin-bottom: 4px; padding-left: 8px; }
.footer { text-align: center; color: #647180; margin-top: 12px; }
footer { display: flex; justify-content: space-between; padding: 24px 0 36px; color: #647180; font-size: 14px; }
@media (max-width: 600px) { article { padding: 28px 20px; } h1 { font-size: 24px; } h2 { font-size: 19px; } header, main, footer { width: calc(100% - 24px); } header { font-size: 14px; } }
@media print { :root { background: white; color: black; } header, footer { display: none; } main { width: 100%; } article { border: 0; padding: 0; } }