:root{--navy:#073f70;--deep:#052a4a;--blue:#087ecb;--sky:#70c9ff;--light:#f5f7f9;--ink:#101c2d;--muted:#5d6875;--white:#fff;--line:#dce3e9;--max:1380px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.55;background:#fff}img{max-width:100%}a{color:inherit}.utility{background:var(--navy);color:#fff;font-size:14px}.utility .bar{min-height:38px;padding:6px 28px}.utility-tag{font-weight:700;letter-spacing:.4px}.utility-contact{display:flex;gap:26px}.utility a{text-decoration:none}.top{background:#fff;color:var(--ink);position:sticky;top:0;z-index:20;box-shadow:0 2px 10px #0002}.bar{max-width:var(--max);margin:auto;display:flex;align-items:center;justify-content:space-between;padding:10px 28px;gap:32px}.brand{display:block;text-decoration:none;flex:0 0 auto}.brand img{display:block;width:470px;height:auto;max-height:128px;object-fit:contain;object-position:left center}.brandtext{display:none}nav{display:flex;gap:48px;align-items:center}nav a{text-decoration:none;font-weight:800;font-size:14px;text-transform:uppercase;padding:14px 0;border-bottom:3px solid transparent}nav a:hover,nav a.active{color:var(--blue);border-bottom-color:var(--blue)}.menu{display:none;background:var(--navy);border:0;color:white;padding:9px 12px;border-radius:4px}.hero{min-height:470px;display:grid;place-items:center;color:#fff;background:linear-gradient(90deg,rgba(3,22,39,.94) 0%,rgba(3,22,39,.72) 38%,rgba(3,22,39,.18) 72%),url('../images/heat-exchanger-006.jpg') center 48%/cover}.hero .inner,.wrap{width:min(var(--max),calc(100% - 56px));margin:auto}.hero .inner{padding:48px 0}.hero h1{font-size:clamp(42px,5vw,68px);line-height:.98;max-width:720px;margin:8px 0 18px}.hero h1 span{color:var(--sky)}.hero p{font-size:20px;max-width:620px;margin:0 0 12px}.btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;padding:14px 24px;border-radius:2px;font-weight:bold;margin:8px 8px 0 0;text-transform:uppercase;font-size:14px}.btn.alt{background:transparent;color:#fff;border:2px solid #fff}.btn.light{background:#fff;color:var(--navy)}section{padding:68px 0}.soft{background:var(--light)}.eyebrow{text-transform:uppercase;color:var(--blue);font-weight:bold;letter-spacing:1.7px;font-size:12px}h2{font-size:38px;line-height:1.1;margin:8px 0 22px}h3{color:var(--navy)}.trustbar{padding:0;background:#fff;border-bottom:1px solid var(--line)}.trustitems{display:grid;grid-template-columns:repeat(5,1fr);width:min(var(--max),calc(100% - 56px));margin:auto}.trustitem{padding:25px 20px;border-right:1px solid var(--line)}.trustitem:last-child{border-right:0}.trustitem strong{display:block;color:var(--navy);font-size:14px;text-transform:uppercase}.trustitem span{font-size:13px;color:var(--muted)}.two{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}.feature-photo{width:100%;height:370px;object-fit:cover;border-radius:3px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:#fff;border:1px solid var(--line);overflow:hidden;box-shadow:0 8px 24px rgba(20,40,60,.06)}.card img{width:100%;height:220px;object-fit:cover}.card .pad{padding:22px}.quicklinks{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:28px}.quick{min-height:120px;position:relative;display:flex;align-items:flex-end;padding:18px;color:#fff;text-decoration:none;font-weight:800;background-size:cover;background-position:center;overflow:hidden}.quick:before{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(4,31,53,.9),rgba(4,31,53,.12))}.quick span{position:relative;z-index:1}.process{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.step{padding:20px;border-top:4px solid var(--blue);background:#fff;box-shadow:0 6px 18px rgba(0,0,0,.05)}.stepimg{width:100%;height:260px;object-fit:cover;margin:0 0 15px}.pagehead{background:linear-gradient(90deg,rgba(5,42,74,.96),rgba(5,42,74,.72)),url('../images/heat-exchanger-004.jpg') center/cover;color:#fff;padding:62px 0}.pagehead h1{font-size:50px;margin:0}.contactbox{background:var(--navy);color:#fff;padding:30px}.contactbox a{color:#fff}.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.gallery img{width:100%;height:220px;object-fit:cover}.map{border:1px solid var(--line);padding:8px;background:#fff}.trust{display:flex;align-items:center;gap:30px;padding:28px;background:#fff;border:1px solid var(--line)}.trust img{width:150px;height:auto}.cta{background:var(--navy);color:#fff}.cta h2{margin-top:0}.small{font-size:13px;color:#6d7780}footer{background:var(--deep);color:#cbd5df;padding:35px 0}footer .bar{align-items:flex-start}.footer-logo{width:240px;background:#fff;padding:6px}
@media(max-width:1050px){.brand img{width:360px}nav{gap:22px}.trustitems{grid-template-columns:repeat(3,1fr)}}
@media(max-width:800px){.utility-tag{display:none}.utility .bar{justify-content:center}.utility-contact{gap:14px;font-size:12px}.top .bar{min-height:78px}.brand img{width:250px}.menu{display:block}nav{display:none;position:absolute;top:78px;left:0;right:0;background:#fff;padding:18px 24px;flex-direction:column;align-items:flex-start;box-shadow:0 8px 15px #0002}nav.open{display:flex}nav a{width:100%}.grid,.two,.process,.gallery,.quicklinks{grid-template-columns:1fr}.trustitems{grid-template-columns:1fr 1fr;width:100%}.trustitem{padding:16px}.hero{min-height:500px;background-position:60% center}.hero .inner,.wrap{width:min(100% - 36px,var(--max))}.pagehead h1{font-size:38px}section{padding:50px 0}.trust{align-items:flex-start;flex-direction:column}.gallery img{height:auto}}