:root { color-scheme: light; font-family: "PingFang SC", "Microsoft YaHei", sans-serif; color: #243142; background: #f5f7fa; }
* { box-sizing: border-box; }
body { max-width: 860px; margin: auto; padding: 40px 28px 72px; font-size: 16px; line-height: 1.9; }
a { color: #2458b8; text-underline-offset: 4px; }
a:focus-visible { outline: 2px solid #2458b8; outline-offset: 4px; }
nav { display: flex; flex-wrap: wrap; gap: 24px; font-size: 14px; }
h1 { margin: 40px 0 12px; font-size: 36px; line-height: 1.35; font-weight: 600; }
h2 { margin-top: 36px; font-size: 22px; font-weight: 600; }
p, li { max-width: 70ch; }
.notice { padding: 16px 20px; background: #e8edf5; border-radius: 12px; }
.meta, footer { color: #526174; font-size: 14px; }
footer { margin-top: 48px; border-top: 1px solid #ced6e0; padding-top: 24px; }
::selection { background: #cfe0ff; }
@media (max-width: 480px) { body { padding: 24px 20px 48px; } h1 { font-size: 30px; } }