:root{--ink:#061525;--navy:#081827;--blue:#0868b8;--sky:#eaf5fb;--line:#d9e5ec;--muted:#667b8f;--orange:#ff6726;--yellow:#f2c300;--paper:#fff;--soft:#f4f8fa;--radius:24px;--shadow:0 24px 70px rgba(8,31,51,.12)}
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1fr;gap:36px}.category-nav{position:sticky;top:104px;align-self:start;border:1px solid var(--line);border-radius:20px;padding:10px;background:#fff}.category-nav a{display:block;padding:15px 14px;border-radius:13px;color:#4c6174;font-weight:750;font-size:13px}.category-nav a.active{background:var(--navy);color:#fff}.category-nav small{display:block;color:#1b78b9;letter-spacing:.12em}.category-nav a.active small{color:#ffd400}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.product-card{position:relative;display:flex;flex-direction:column;min-height:100%;transition:.25s}.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.product-visual{aspect-ratio:1.1;background:radial-gradient(circle at 50% 42%,#fdfefe 0,#e9f2f7 55%,#cddbe4 100%);padding:18px}.product-visual img{width:100%;height:100%;object-fit:contain}.product-copy{padding:22px}.product-copy h3{font-size:20px}.product-copy 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@media(max-width:620px){.site-shell{width:min(100% - 28px,1200px)}.site-nav{min-height:68px}.brand-sub{display:none}.section{padding:62px 0}.page-hero{padding:64px 0 52px}.hero-grid{gap:30px}.section-head{align-items:start;flex-direction:column}.product-grid,.article-grid{grid-template-columns:1fr}.featured-copy{padding:28px}.featured-article img{min-height:250px}.resource-grid,.stat-grid,.info-strip,.cert-grid{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.contact-modal{padding:28px 20px}.contact-float{right:10px;padding:12px 10px}.cta-band{padding:32px;align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.search-field{margin-left:0;width:100%;min-width:0}.spec-row{grid-template-columns:1fr}.article-page{gap:30px}}