:root{--navy:#0b2d45;--navy2:#061c2d;--teal:#0c8589;--teal2:#0a6c70;--steel:#edf3f5;--line:#d5e0e4;--ink:#172b36;--muted:#5d6f78;--white:#fff;--orange:#e66e3d;--shadow:0 18px 48px rgba(11,45,69,.12);--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.62;background:#fff}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button,input,select,textarea{font:inherit}.container{width:min(1180px,calc(100% - 40px));margin:auto}.narrow{width:min(790px,100%)}.section{padding:72px 0}.soft{background:var(--steel)}.accent{background:linear-gradient(135deg,var(--navy),#104d68);color:white}.topbar{background:var(--navy2);color:#d8edf0;text-align:center;padding:6px 16px;font-size:.82rem}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);box-shadow:0 1px 0 rgba(11,45,69,.1)}.nav-wrap{width:min(1240px,calc(100% - 32px));min-height:78px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand img{width:205px;height:auto}.main-nav{display:flex;align-items:center;gap:24px;font-weight:650;font-size:.95rem}.main-nav>a,.nav-products summary{padding:10px 0;cursor:pointer;list-style:none}.main-nav>a:hover,.nav-products summary:hover{color:var(--teal)}.nav-products{position:relative}.nav-products summary::-webkit-details-marker{display:none}.nav-products summary:after{content:"⌄";margin-left:6px}.mega-menu{position:absolute;right:-140px;top:44px;width:640px;background:#fff;padding:20px;display:grid;grid-template-columns:repeat(2,1fr);gap:4px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.mega-menu a{padding:9px 12px;border-radius:8px}.mega-menu a:hover{background:var(--steel);color:var(--teal2)}.nav-cta{background:var(--teal);color:#fff!important;padding:10px 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0}.button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;padding:12px 22px;border-radius:999px;font-weight:800;border:1px solid transparent;transition:.2s transform,.2s background}.button:hover{transform:translateY(-2px)}.button.primary{background:var(--orange);color:#fff}.button.primary:hover{background:#cc572b}.button.secondary{border-color:var(--navy);color:var(--navy);margin-left:8px}.button.light{background:#fff;color:var(--navy)}.trust-row{display:flex;flex-wrap:wrap;gap:9px 18px;color:#4c626c;font-size:.88rem}.trust-row span:before{content:"✓";color:var(--teal);font-weight:900;margin-right:7px}.hero-mosaic{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:210px 210px;gap:14px}.hero-mosaic img{width:100%;height:100%;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.hero-mosaic img:first-child{grid-row:1/3}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}.text-link{font-weight:800;color:var(--teal2)}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.category-card{display:grid;grid-template-columns:124px 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;min-height:170px;transition:.2s transform,.2s box-shadow}.category-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.category-image{background:#fff;display:flex;align-items:center}.category-image img{width:100%;height:100%;object-fit:contain;padding:10px}.category-copy{padding:20px 17px;display:flex;flex-direction:column;justify-content:center}.category-copy strong{color:var(--navy);font-size:1.04rem}.category-copy small{color:var(--muted);line-height:1.35;margin:7px 0}.category-copy b{color:var(--teal2);font-size:.86rem}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;min-width:0}.product-card:hover{box-shadow:var(--shadow)}.card-image{height:280px;background:#fff;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line)}.card-image img{width:100%;height:100%;object-fit:contain;padding:20px}.card-body{padding:22px;display:flex;flex-direction:column;flex:1}.card-body p{color:var(--muted);font-size:.94rem}.card-body .text-link{margin-top:auto}.product-card.compact .card-image{height:230px}.image-placeholder{display:grid;place-items:center;width:100%;height:100%;min-height:220px;background:linear-gradient(135deg,#e7f1f3,#fff);color:var(--teal);font-size:2rem;font-weight:900}.cta-row{display:flex;justify-content:space-between;align-items:center;gap:40px}.cta-row h2,.accent 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var(--line)}.spec-table th,.spec-table td,.compare-table th,.compare-table td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top}.spec-table th{width:27%;color:var(--navy)}.compare-table thead{background:var(--navy);color:#fff}.compare-table a{font-weight:800;color:var(--teal2)}.quote-panel{background:var(--navy);color:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}.quote-panel h2{color:#fff}.faq{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 18px}.faq summary{cursor:pointer;font-weight:800;color:var(--navy);padding:16px 0}.faq p{padding:0 0 16px;margin:0;color:var(--muted)}.article h2{margin-top:42px}.article-toc{display:grid;gap:6px;border-left:4px solid var(--teal);padding:18px 22px;background:var(--steel);margin:34px 0}.article-toc a{color:var(--teal2)}.guide-list li{margin-bottom:14px}.guide-list 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18px;border-radius:999px;font-weight:850;box-shadow:0 10px 30px rgba(0,0,0,.22)}@media(max-width:960px){.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:108px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow);align-items:stretch;flex-direction:column}.main-nav.open{display:flex}.mega-menu{position:static;width:auto;grid-template-columns:1fr;box-shadow:none;border:0;padding:10px 0}.hero-grid,.product-layout,.content-grid,.two-col,.contact-grid{grid-template-columns:1fr}.hero-mosaic{order:-1;grid-template-rows:160px 160px}.category-grid,.product-grid,.guide-grid{grid-template-columns:repeat(2,1fr)}.process-grid{grid-template-columns:1fr}.product-main-image{height:430px}.cta-row{align-items:flex-start;flex-direction:column}}@media(max-width:640px){.container{width:min(100% - 28px,1180px)}.section{padding:54px 0}.home-hero{padding:44px 0}.brand 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span{display:inline-grid;place-items:center;width:20px;height:20px;margin:0;border-radius:50%;background:#fff;color:var(--navy2);font-weight:900;line-height:1}.contact-social{border:1px solid var(--line);border-radius:14px;padding:20px}.contact-social>strong{display:block;color:var(--navy);margin-bottom:12px}.contact-social .social-links{margin-top:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.contact-social .social-links a{justify-content:center;border-color:var(--line);color:var(--navy);padding:10px 8px}.contact-social .social-links a:hover{background:var(--steel);border-color:var(--teal)}.contact-social .social-links a span{background:var(--navy);color:#fff}@media(max-width:640px){.contact-social .social-links{grid-template-columns:1fr}.contact-social .social-links a{justify-content:flex-start}}