.product-header{border-bottom:1px solid var(--line);background:var(--surface)}.product-header>.container{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.product-header nav{display:flex;gap:24px;font-size:.8rem}.product-page{padding-bottom:64px}.breadcrumbs{display:flex;gap:12px;font-size:.75rem;color:var(--muted);padding-top:30px}.product-intro{display:grid;grid-template-columns:1.4fr 1fr;gap:64px;align-items:center;padding:45px 0}.product-intro h1{font-size:clamp(2rem,4vw,3.8rem);line-height:1.08;letter-spacing:-.045em;margin:16px 0 24px}.lead{font-size:1rem;line-height:1.8;color:var(--muted);margin-bottom:24px;max-width:650px}.product-art{width:100%;height:auto;max-width:400px;border-radius:22px;border:1px solid var(--line)}.product-note{font-size:.74rem;color:var(--muted);margin-top:15px}.product-calculator{display:grid;grid-template-columns:1fr 1fr;gap:45px;border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:18px;padding:32px;background:var(--surface);margin:12px 0 44px}.product-calculator h2{font-size:1.6rem;letter-spacing:-.025em;margin:12px 0}.product-calculator p{line-height:1.8;color:var(--muted)}.product-calculator label{display:block;font-size:.8rem;margin-bottom:10px}.product-calculator input{width:100%;background:var(--surface-2);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:14px;font:inherit}.estimate-result{margin:18px 0;display:flex;flex-direction:column;gap:5px}.estimate-result strong{font-size:2rem;color:var(--accent)}.estimate-result span{font-size:.8rem;color:var(--muted)}.product-details{max-width:800px}.product-details section{padding:24px 0;border-bottom:1px solid var(--line)}.product-details h2,.related-products h2{font-size:1.45rem;letter-spacing:-.02em;margin:0 0 16px}.product-details p,.product-details li{line-height:1.9;color:var(--muted);font-size:.91rem}.product-details ol{padding-left:20px}.product-details a{color:var(--accent)}.product-details details{border:1px solid var(--line);border-radius:10px;padding:18px;margin:10px 0}.product-details summary{cursor:pointer;font-size:.86rem;font-weight:600}.related-products{padding:40px 0 0}.related-products>div{display:flex;gap:16px;flex-wrap:wrap}.related-products a{border:1px solid var(--line);border-radius:10px;padding:17px;background:var(--surface)}.seo-product-links{display:flex;gap:14px;flex-wrap:wrap;font-size:.75rem}.seo-product-links a{color:var(--muted)}.seo-product-links a:hover{color:var(--accent)}
@media(max-width:700px){.product-header>.container{min-height:68px;gap:12px}.product-header .nav-brand{font-size:.73rem}.product-header nav{gap:12px;font-size:.73rem}.product-header nav>a:first-child{display:none}.product-intro{grid-template-columns:1fr;gap:28px;padding:32px 0}.product-art{max-width:290px;justify-self:center}.product-calculator{grid-template-columns:1fr;gap:22px;padding:22px}.product-details section{padding:22px 0}.lead{font-size:.9rem}.product-details h2{font-size:1.3rem}}
.product-header .nav-brand::before{display:none}