a { color: inherit; }
.skip-link { position: fixed; top: -80px; left: 16px; z-index: 300; padding: 12px 20px; background: var(--surf0); color: var(--text0); }
.skip-link:focus { top: 10px; }
.guide-main { max-width: 1060px; padding: 0 24px 72px; margin: auto; position: relative; z-index: 1; }
.nav-btn[aria-current] { color: var(--acc3); border-color: var(--acc2); }
.guides-hero { display: grid; grid-template-columns: 1fr 240px; gap: 64px; align-items: end; padding: 88px 0 64px; }
.category { display: inline-block; color: var(--acc3); font-family: var(--mono); font-size: .7rem; font-weight: 500; line-height: 1.6; letter-spacing: .08em; text-transform: uppercase; }
.guides-hero h1, .article-heading h1 { display: block; font-size: clamp(2.6rem, 5.6vw, 4.4rem); line-height: 1.08; letter-spacing: -.055em; margin: 20px 0; }
.guides-hero h1 span { color: var(--acc3); }
.lead { font-size: 1.05rem; line-height: 1.85; color: var(--text1); max-width: 570px; }
.hero-aside { padding-left: 24px; border-left: 1px solid var(--border2); margin-bottom: 8px; }
.aside-label, .article-number { font: .65rem var(--mono); color: var(--text1); letter-spacing: .07em; }
.hero-aside p { font-size: 1.05rem; line-height: 1.6; margin: 16px 0; }
.hero-aside a { font-size: .75rem; color: var(--acc3); text-underline-offset: 5px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 22px 0; border-top: 1px solid var(--border2); }
.section-heading h2 { font-size: 1rem; font-weight: 600; letter-spacing: -.02em; }
.section-heading > span { font: .65rem var(--mono); color: var(--text1); }
.guide-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; }
.guide-card { display: flex; flex-direction: column; text-decoration: none; padding: 28px; background: var(--surf0); border: 1px solid var(--border1); border-radius: 16px; transition: border-color .2s, transform .2s; }
.guide-card:hover { border-color: var(--acc2); transform: translateY(-3px); }
.card-0 { grid-row: span 2; background: linear-gradient(150deg,var(--accDim),transparent 80%),var(--surf0); justify-content: flex-start; }
.card-top, .card-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.guide-card h2 { font-size: 1.45rem; line-height: 1.3; letter-spacing: -.035em; margin: 28px 0 14px; }
.card-0 h2 { font-size: clamp(2rem, 3.3vw, 2.8rem); margin-top: 70px; }
.guide-card p { color: var(--text1); font-size: .88rem; line-height: 1.8; margin-bottom: 30px; }
.card-bottom { font-size: .72rem; color: var(--text1); margin-top: auto; padding-top: 20px; border-top: 1px solid var(--border1); }
.read-link { color: var(--acc3); font-weight: 600; }
.guide-cta { margin-top: 56px; padding: 34px; background: var(--surf1); border: 1px solid var(--border1); border-radius: 16px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.guide-cta h2 { font-size: 1.4rem; letter-spacing: -.035em; margin: 8px 0; }
.guide-cta p { color: var(--text1); font-size: .85rem; line-height: 1.7; }
.primary-link { display: inline-flex; align-items: center; gap: 22px; white-space: nowrap; background: var(--acc); color: #fff; padding: 14px 20px; border-radius: 9px; text-decoration: none; font-size: .8rem; font-weight: 600; }
.primary-link:hover { background: var(--acc2); }
.back-link { display: inline-block; color: var(--text1); font-size: .8rem; text-decoration: none; margin-top: 36px; }
.back-link:hover { color: var(--acc3); }
.article-heading { padding: 46px 0; max-width: 790px; }
.article-heading h1 { font-size: clamp(2.4rem,5vw,3.8rem); }
.byline { color: var(--text1); font-size: .75rem; margin-top: 22px; }
.article-layout { display: grid; grid-template-columns: 225px minmax(0,1fr); gap: 52px; border-top: 1px solid var(--border1); padding-top: 36px; }
.contents { align-self: start; position: sticky; top: 90px; }
.contents h2 { font-size: .8rem; margin-bottom: 16px; }
.contents ol { padding-left: 18px; color: var(--text1); font-size: .75rem; line-height: 1.7; }
.contents li { padding-bottom: 12px; }
.contents a { text-decoration: none; }
.contents a:hover { color: var(--acc3); }
.article-body section { scroll-margin-top: 85px; margin-bottom: 36px; }
.article-body h2 { font-size: 1.4rem; letter-spacing: -.025em; line-height: 1.4; margin-bottom: 16px; }
.article-body p { font-size: .98rem; color: var(--text1); line-height: 1.95; margin-bottom: 16px; }
.related { margin-top: 48px; }
.related h2 { font-size: 1rem; margin-bottom: 16px; }
.related > a { display: flex; justify-content: space-between; gap: 16px; text-decoration: none; font-size: .9rem; padding: 20px 0; border-bottom: 1px solid var(--border1); }
.related > a:hover { color: var(--acc3); }
.guide-note { color: var(--text1); font-size: .7rem; line-height: 1.6; }
footer > a:not(.logo) { color: var(--text1); font-size: .8rem; text-underline-offset: 4px; }
@media(max-width:700px) {
.guides-hero { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 36px; }
.hero-aside { max-width: 380px; }
.guide-grid { grid-template-columns: 1fr; }
.card-0 { grid-row: auto; }
.card-0 h2 { margin-top: 30px; font-size: 2rem; }
.guide-cta { align-items: start; flex-direction: column; padding: 24px; }
.article-layout { grid-template-columns: 1fr; gap: 28px; }
.contents { position: static; }
.contents ol { columns: 2; column-gap: 30px; }
.contents li { break-inside: avoid; }
.section-heading > span { display: none; }
}
@media(max-width:400px) { .nav { padding: 0 12px; } .nav-actions { gap: 5px; } .nav-btn { padding: 6px 9px; font-size: .62rem; } .guide-main { padding-left: 18px; padding-right: 18px; } .contents ol { columns: 1; } }
@media(prefers-reduced-motion:reduce) { html { scroll-behavior: auto; } *,*::before,*::after { animation: none !important; transition: none !important; } }