:root{--ink:#11224a;--text:#17223c;--muted:#5f6c86;--line:#dce5f4;--soft:#f5f8fd;--accent:#2563eb;--accent-dark:#1747b8;--shadow:0 12px 30px rgba(25,61,123,.08)}
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.brand-logo{display:block;width:210px;height:60px;object-fit:contain;object-position:left center}@media(max-width:620px){.brand-logo{width:135px;height:50px}}
:root{--header-height:130px}html{scroll-padding-top:calc(var(--header-height) + 20px)}.site-header{position:sticky;top:0;z-index:40;background:#fff;box-shadow:0 3px 14px rgba(17,34,74,.08)}.header-inner{min-height:var(--header-height);padding:0;align-items:center;flex-wrap:nowrap}.brand-logo{width:250px;height:130px;object-fit:contain;object-position:left center}.site-nav{gap:24px}.content-grid>aside{top:calc(var(--header-height) + 20px)}.article-section{scroll-margin-top:calc(var(--header-height) + 20px)}@media(max-width:900px){.content-grid>aside{position:static}}@media(max-width:620px){:root{--header-height:180px}.header-inner{min-height:var(--header-height);padding:0;align-content:center;flex-wrap:wrap;gap:0}.brand-logo{width:220px;height:130px}.site-nav{width:100%;margin-left:0;justify-content:space-between;gap:8px}.site-nav a{font-size:.78rem}}
:root{--header-height:130px}body{padding-top:var(--header-height)}.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:40;background:#fff;box-shadow:0 3px 14px rgba(17,34,74,.08)}@media(max-width:620px){:root{--header-height:180px}}