:root { color-scheme: light; font-family: system-ui, -apple-system, "Noto Sans JP", sans-serif; color: #202b34; background: #f8f7f3; line-height: 1.85; }
* { box-sizing: border-box; }
body { margin: 0; }
header, main, footer { width: min(100% - 40px, 780px); margin-inline: auto; }
header { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-block: 26px; border-bottom: 1px solid #d8ddd9; flex-wrap: wrap; }
a { color: #175d51; text-underline-offset: .22em; overflow-wrap: anywhere; }
a:hover { color: #0b3e35; }
a:focus-visible { outline: 3px solid #956000; outline-offset: 5px; }
.brand { font-weight: 750; color: #202b34; text-decoration: none; font-size: 1.1rem; }
nav { font-size: .9rem; }
main { padding-block: 54px 64px; }
h1 { font-size: clamp(1.9rem, 5vw, 2.65rem); line-height: 1.5; letter-spacing: -.035em; margin-block: 8px 26px; overflow-wrap: anywhere; }
h2 { font-size: 1.22rem; margin-block: 36px 10px; }
p { margin-block: 12px; }
.lead { font-size: 1.08rem; }
.eyebrow { font-size: .85rem; font-weight: 650; color: #48645b; }
ul { padding-left: 1.4em; }
li { margin-block: 12px; }
footer { border-top: 1px solid #d8ddd9; padding-block: 24px; font-size: .9rem; }
.skip { position: absolute; left: 12px; top: -100px; padding: 8px 16px; background: white; }
.skip:focus { top: 8px; }
@media (max-width: 480px) { main { padding-top: 32px; } header { gap: 8px; } }