.site-header{height:var(--header-h);background:rgba(247,246,242,.93);border-bottom:1px solid rgba(23,63,70,.08);position:sticky;top:0;z-index:50;backdrop-filter:blur(12px)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}.brand img{width:174px;display:block}.nav-toggle{display:none;border:0;background:transparent;padding:.65rem}.site-nav{display:flex;align-items:center;gap:1.25rem}.site-nav a{text-decoration:none;font-weight:650;font-size:.91rem}.main{min-height:60vh}.section{padding:var(--space-7) 0}.section-tight{padding:var(--space-6) 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:2rem;margin-bottom:2.2rem}.section-head p{max-width:52ch}.grid{display:grid;gap:1.25rem}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.site-footer{background:var(--color-primary);color:#dfe9e8;padding:4.5rem 0 1.5rem}.site-footer a{color:#fff;text-decoration:none}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2.5rem}.footer-brand{max-width:22rem}.footer-brand img{width:185px;margin-bottom:1.2rem}.footer-links{display:grid;gap:.55rem}.footer-links h3{color:#fff;font-size:1rem;letter-spacing:0}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:3rem;padding-top:1.4rem;display:flex;justify-content:space-between;gap:1rem;font-size:.84rem}.breadcrumbs{display:flex;gap:.5rem;list-style:none;padding:1.1rem 0;margin:0;font-size:.85rem;color:var(--color-muted)}.breadcrumbs li+li:before{content:"/";margin-right:.5rem;color:#9aaaaa}.breadcrumbs a{text-decoration:none}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:4rem;align-items:start}.article-body{font-size:1.08rem}.article-body h2{font-size:2rem;margin-top:2.5rem}.article-body h3{margin-top:1.9rem}.article-body ul,.article-body ol{padding-left:1.3rem}.article-body table{width:100%;border-collapse:collapse;margin:1.5rem 0}.article-body th,.article-body td{border:1px solid var(--color-border);padding:.75rem;text-align:left}.article-meta{display:flex;gap:1.2rem;flex-wrap:wrap;color:var(--color-muted);font-size:.87rem}.article-aside{position:sticky;top:calc(var(--header-h) + 1rem)}
@media(max-width:900px){.nav-toggle{display:block}.site-nav{position:fixed;inset:var(--header-h) 0 auto;background:var(--color-bg);padding:1rem;display:none;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--color-border)}.site-nav.open{display:flex}.grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr}.article-aside{position:static}}
@media(max-width:620px){:root{--container:min(100% - 1.25rem,1180px);--space-7:4rem}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.section-head{display:block}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.brand img{width:155px}}