:root{color-scheme:light;--ink:#20252b;--muted:#5b6570;--rule:#dce1e5;--accent:#285b77;--paper:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,Arial,sans-serif}
a{color:var(--accent);text-underline-offset:.18em}
a:hover{text-decoration-thickness:2px}
.wrap{max-width:840px;margin:auto;padding:0 28px}
.top{border-bottom:1px solid var(--rule)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.brand{display:none}
.nav{display:flex;gap:18px;align-items:center;flex-wrap:wrap;font-size:.9rem}
.nav a{text-decoration:none}
.nav a[aria-current=page]{color:var(--ink);font-weight:650}
.lang{border-left:1px solid var(--rule);padding-left:16px}
.hero{padding:64px 0 52px;border-bottom:1px solid var(--rule)}
h1{font-size:clamp(2.05rem,6vw,3.25rem);font-weight:650;letter-spacing:-.035em;line-height:1.25;margin:0 0 20px}
h2{font-size:1.35rem;letter-spacing:-.02em;margin:0 0 22px}
h3{font-size:1.03rem;margin:0 0 5px}
.meta{margin:0;color:var(--muted);font-size:.96rem}
.section{padding:48px 0;border-bottom:1px solid var(--rule)}
.section p{margin:0 0 15px}
.section p:last-child{margin-bottom:0}
.directory-list{list-style:none;display:flex;flex-wrap:wrap;gap:12px 28px;padding:0;margin:16px 0 0}
.directory-list li{scroll-margin-top:24px}
.list{list-style:none;padding:0;margin:0}
.list li{padding:16px 0;border-top:1px solid var(--rule)}
.list li:first-child{border-top:0;padding-top:0}
.list.numbered{list-style:decimal;padding-left:2rem}
.list.numbered li{padding-left:.35rem}
.list.numbered li::marker{color:var(--muted);font-variant-numeric:tabular-nums}
.detail{color:var(--muted);font-size:.92rem}
.page-head{padding:62px 0 20px}
.page-head h1{font-size:clamp(1.9rem,5vw,2.7rem);margin:0}
.subpage-content{padding-top:12px}
.page-note{margin-bottom:24px!important}
.footer{color:var(--muted);font-size:.85rem;padding:30px 0 50px}
@media(max-width:610px){.top .wrap{align-items:flex-start;flex-direction:column;padding-top:16px;padding-bottom:16px;gap:8px}.nav{gap:12px 15px}.hero{padding:48px 0 40px}.section{padding:38px 0}.page-head{padding-top:42px}}