:root{--navy:#102b49;--blue:#155eac;--red:#d52e35;--ink:#152d45;--muted:#53677b;--line:#dce4ec;--soft:#f2f6fa;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--ink);font:16px/1.65 Arial,Helvetica,sans-serif;background:#fff}a{color:var(--blue);text-underline-offset:4px}a:focus-visible,summary:focus-visible{outline:3px solid #e67715;outline-offset:5px}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(38px,5vw,67px);line-height:1.06;letter-spacing:-2.4px;margin:12px 0 24px}h2{font-size:clamp(28px,3vw,40px);line-height:1.18;letter-spacing:-1.1px;margin-bottom:20px}h3{font-size:20px;line-height:1.35;margin-bottom:12px}.wrap{width:min(1200px,calc(100% - 64px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:#fffffff5;backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;min-height:92px;gap:24px}.brand{display:flex;flex-shrink:0}.brand img{width:188px;height:auto;display:block}.nav-links{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:700}.nav-links a{color:var(--ink);text-decoration:none}.nav-links .button{color:#fff}.button{display:inline-flex;align-items:center;justify-content:center;padding:14px 22px;border-radius:5px;background:var(--red);color:#fff;text-decoration:none;font-size:15px;font-weight:700;line-height:1.4;border:1px solid var(--red)}.button:hover{background:#b7212a}.button.secondary{background:transparent;color:var(--ink);border-color:#bccbd8}.buttons{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 18px}.breadcrumb{padding-top:26px;font-size:12px;color:var(--muted)}.breadcrumb a{color:inherit;text-decoration:none}.hero{background:linear-gradient(145deg,#f7fafc 0%,#edf3f9 100%);border-bottom:1px solid var(--line);padding-bottom:0}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;padding:42px 0 45px}.eyebrow{color:var(--blue);font-size:11px;letter-spacing:1.5px;font-weight:800;margin-bottom:14px}.model-name{font-size:20px;color:var(--blue);font-weight:700;margin-bottom:0}.intro{color:var(--muted);font-size:17px;max-width:590px}.fine{font-size:12px;line-height:1.55;color:var(--muted)}.visual{position:relative;background:radial-gradient(ellipse at center,#fff 28%,#e4edf6 100%);border:1px solid #d7e3ef;border-radius:18px;padding:30px 22px 18px;min-height:420px;display:flex;flex-direction:column;justify-content:center}.visual .outdoor{width:100%;height:250px;object-fit:contain;filter:drop-shadow(0 14px 12px #18385113)}.visual-bottom{display:flex;align-items:center;justify-content:space-between;gap:15px;border-top:1px solid #cfdae5;padding-top:8px}.visual-bottom img{width:146px;height:112px;object-fit:contain}.visual-label{font-size:12px;color:var(--muted);max-width:220px}.visual-label strong{font-size:15px;color:var(--ink);display:block}.pill{display:inline-block;background:var(--navy);color:#fff;font-size:11px;letter-spacing:1px;font-weight:700;border-radius:4px;padding:7px 10px;align-self:flex-start}.metrics{display:grid;grid-template-columns:repeat(3,1fr);background:var(--navy);color:#fff;border-radius:10px 10px 0 0;padding:28px 20px}.metric{text-align:center;border-right:1px solid #ffffff26}.metric:last-child{border:0}.metric strong{font-size:31px;line-height:1.2;display:block;letter-spacing:-.7px}.metric span{display:block;font-size:12px;color:#bfd1e2;margin-top:6px}.section{padding:78px 0}.section.soft{background:var(--soft)}.section-intro{max-width:760px;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}.card{border:1px solid var(--line);border-radius:8px;padding:27px;background:#fff}.card p{margin-bottom:0;color:var(--muted);font-size:15px}.card .number{display:block;font-size:12px;letter-spacing:1px;font-weight:700;color:var(--blue);margin-bottom:18px}.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px}.sticky-note{position:sticky;top:130px;align-self:start}.spec-table{width:100%;border-collapse:collapse;background:#fff;font-size:14px}.spec-table caption{text-align:left;font-size:12px;font-weight:700;color:var(--blue);padding:0 0 14px}.spec-table th,.spec-table td{padding:15px 14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}.spec-table th{width:46%;font-weight:600;color:#506276}.spec-table tr:nth-child(odd){background:#f7f9fc}.spec-table td{font-weight:600}.notice{background:#e7eff7;border-left:3px solid var(--blue);padding:18px 20px;font-size:14px;margin-top:25px}.checklist{list-style:none;padding:0;margin:20px 0}.checklist li{position:relative;padding:0 0 18px 25px;color:var(--muted);font-size:15px}.checklist li:before{content:'✓';position:absolute;left:0;color:var(--blue);font-weight:700}.checklist strong{color:var(--ink)}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:35px}.step{border-top:2px solid var(--blue);padding-top:18px}.step b{color:var(--blue);display:block;margin-bottom:10px;font-size:13px}.step p{font-size:14px;color:var(--muted);margin-bottom:0}.faq{max-width:900px}.faq details{border-bottom:1px solid var(--line);padding:20px 0}.faq summary{font-size:17px;font-weight:700;cursor:pointer;padding-right:20px}.faq details p{margin:14px 0 0;color:var(--muted);font-size:15px}.related{display:flex;justify-content:space-between;align-items:center;gap:28px;border:1px solid var(--line);border-radius:8px;padding:30px;margin-top:40px}.related p{margin:0;max-width:650px;font-size:15px;color:var(--muted)}.rfq{background:var(--navy);color:#fff}.rfq .eyebrow{color:#8ebbed}.rfq p{color:#c6d5e4}.rfq-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px}.rfq-list{margin:0;padding-left:22px;color:#d9e4ef}.rfq-list li{padding-bottom:13px}.rfq .button.secondary{color:#fff;border-color:#7089a2}.rfq .fine{color:#a9bfd4}.site-footer{padding:32px 0;background:#091d32;color:#a9bfd4;font-size:13px}.footer-row{display:flex;justify-content:space-between;align-items:center;gap:30px}.site-footer a{color:#dce7f0}.footer-links{display:flex;gap:25px;flex-wrap:wrap}.skip{position:absolute;left:-9999px}.skip:focus{left:20px;top:20px;z-index:100;background:#fff;padding:12px}.guide-links{display:flex;flex-wrap:wrap;gap:12px 26px;font-size:14px;margin-top:30px}.heating .eyebrow{color:#a33d2c}.heating .rfq .eyebrow{color:#f2b9a9}
@media(max-width:900px){.wrap{width:calc(100% - 40px)}.hero-grid{gap:24px}.nav-links{gap:16px}.nav-links .desktop-link{display:none}h1{font-size:44px}.visual{min-height:360px;padding:20px 15px 10px}.visual .outdoor{height:200px}.visual-bottom img{width:120px}.split{grid-template-columns:1fr;gap:25px}.sticky-note{position:static}.cards{gap:15px}.card{padding:22px}.steps{grid-template-columns:repeat(2,1fr)}.rfq-grid{gap:30px}}
@media(max-width:640px){html{scroll-padding-top:90px}.wrap{width:calc(100% - 36px)}.nav{min-height:76px;gap:14px}.brand img{width:146px}.nav-links .model-link{display:none}.nav-links .button{font-size:12px;padding:11px 13px}.breadcrumb{padding-top:19px;font-size:11px}.hero-grid{grid-template-columns:1fr;padding:28px 0 30px;gap:20px}h1{font-size:44px;letter-spacing:-1.7px;margin:10px 0 20px}.model-name{font-size:18px}.intro{font-size:16px}.visual{min-height:0;padding:20px 18px 10px}.visual .outdoor{height:180px}.visual-bottom img{height:95px}.metrics{padding:22px 5px}.metric strong{font-size:22px}.metric span{font-size:10px;padding:0 5px}.section{padding:52px 0}h2{font-size:30px}.cards,.rfq-grid{grid-template-columns:1fr}.cards{margin-top:25px}.card{padding:24px}.card .number{margin-bottom:10px}.spec-table{font-size:13px}.spec-table td,.spec-table th{padding:13px 10px;overflow-wrap:anywhere}.spec-table th{width:43%}.steps{gap:25px 18px}.steps h3{font-size:18px}.related{flex-direction:column;align-items:flex-start;padding:24px}.footer-row{flex-direction:column;align-items:flex-start;gap:16px}.buttons .button{padding:13px 17px;font-size:14px}.rfq-list{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.site-header,.buttons,.rfq,.site-footer,.related{display:none}.section{padding:24px 0}.wrap{width:100%}.hero-grid{padding:20px 0}.spec-table tr{break-inside:avoid}.sticky-note{position:static}.faq details p{display:block}}