:root{color-scheme:light;--ink:#172033;--muted:#59647a;--paper:#fff;--wash:#f6f7fb;--line:#dce2ed;--blue:#2549a8}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--wash);color:var(--ink);font-family:system-ui,-apple-system,"Malgun Gothic",sans-serif;font-size:17px;line-height:1.85;word-break:keep-all;overflow-wrap:anywhere}
a{color:var(--blue);text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
a:focus-visible{outline:3px solid var(--blue);outline-offset:5px;border-radius:2px}
.skip-link{position:absolute;left:16px;top:-100px;background:var(--paper);padding:10px 16px;z-index:1}
.skip-link:focus{top:12px}
.wrap{width:min(100% - 48px,840px);margin-inline:auto}
.site-header{background:var(--paper);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:24px;flex-wrap:wrap}
.brand{font-size:20px;font-weight:750;color:var(--ink);text-decoration:none;letter-spacing:-.04em}
.brand span{font-size:13px;color:var(--muted);letter-spacing:.05em;margin-right:10px;font-weight:600}
.site-nav{display:flex;gap:20px;flex-wrap:wrap;font-size:14px}
.site-nav a{color:var(--muted)}
main{padding-block:56px 64px}
.eyebrow{font-size:13px;color:var(--blue);letter-spacing:.08em;font-weight:750;margin:0 0 14px}
h1{font-size:clamp(30px,6vw,46px);letter-spacing:-.045em;line-height:1.3;margin:0 0 20px;max-width:760px}
.intro{font-size:19px;line-height:1.75;max-width:650px;color:var(--muted);margin:0 0 24px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 21px;background:var(--blue);color:#fff;border-radius:8px;font-size:15px;font-weight:700;text-decoration:none}
.button:hover{background:#193682;text-decoration:none}
.guide-list{margin-top:48px;border-top:1px solid var(--line)}
.guide-link{display:grid;grid-template-columns:110px 1fr;gap:26px;padding:30px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}
.guide-link time{font-size:13px;color:var(--muted);padding-top:6px;white-space:nowrap}
.guide-link h2{font-size:23px;line-height:1.5;margin:0 0 8px;letter-spacing:-.03em}
.guide-link p{margin:0;color:var(--muted);font-size:16px}
.read-more{display:inline-block;margin-top:12px;color:var(--blue);font-size:14px;font-weight:650}
.guide-link:hover h2{text-decoration:underline;text-underline-offset:5px}
.disclosure{font-size:14px;color:var(--muted);margin-top:32px;max-width:720px}
.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:26px}
.breadcrumbs a{color:var(--muted)}
.article-meta{color:var(--muted);font-size:14px;margin:0 0 32px}
.article-body{max-width:720px}
.article-body h2{font-size:25px;line-height:1.5;margin:42px 0 14px;letter-spacing:-.03em}
.article-body p{margin:0 0 18px}
.article-body ol,.article-body ul{padding-left:26px;margin:0 0 22px}
.article-body li{padding-left:5px;margin-bottom:12px}
.note{border-left:3px solid var(--blue);padding:3px 0 3px 20px;margin:28px 0;color:#34445e}
.note strong{display:block;margin-bottom:5px}
.note p:last-child{margin-bottom:0}
.article-end{border-top:1px solid var(--line);margin-top:40px;padding-top:28px}
.article-end h2{margin-top:0}
.related{font-size:15px;margin-top:28px}
.site-footer{border-top:1px solid var(--line);padding-block:28px 36px;font-size:13px;color:var(--muted)}
.footer-inner{display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap}
.footer-inner p{margin:0}.footer-inner nav{display:flex;gap:18px;flex-wrap:wrap}
@media(max-width:600px){body{font-size:16px}.wrap{width:calc(100% - 36px)}main{padding-block:36px 48px}.header-inner{padding-block:18px;gap:10px}.site-nav{font-size:13px;gap:16px}.brand{font-size:18px}.brand span{font-size:12px}.intro{font-size:17px}.guide-list{margin-top:34px}.guide-link{grid-template-columns:1fr;gap:8px;padding-block:24px}.guide-link time{padding:0}.guide-link h2{font-size:21px}.article-body h2{font-size:22px}.article-meta{margin-bottom:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}