:root { color-scheme: light; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #182332; background: #f5f7fa; }
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.65; }
header, main, footer { width: min(100% - 40px, 800px); margin-inline: auto; }
header { padding-block: 32px 24px; border-bottom: 1px solid #d4dce7; }
header a { color: #182332; font-size: 1.1rem; font-weight: 700; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 12px; }
nav a { font-size: .95rem; font-weight: 500; text-decoration: underline; }
main { padding-block: 28px 40px; }
h1 { font-size: clamp(1.8rem, 5vw, 2.4rem); line-height: 1.2; letter-spacing: -.025em; }
h2 { font-size: 1.22rem; line-height: 1.4; margin-top: 32px; }
a { color: #124dab; overflow-wrap: anywhere; text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid #124dab; outline-offset: 5px; }
li + li { margin-top: 8px; }
.meta { color: #526071; font-size: .95rem; }
.notice { padding: 18px 20px; background: #eaf0f9; border-left: 4px solid #124dab; border-radius: 4px; }
footer { border-top: 1px solid #d4dce7; padding-block: 24px 36px; color: #526071; font-size: .9rem; }
@media (max-width: 440px) { header, main, footer { width: calc(100% - 32px); } ul, ol { padding-left: 22px; } }