:root{--pd4-ink:#243545;--pd4-deep:#1c354c;--pd4-blue:#28538b;--pd4-red:#bb374d;--pd4-muted:#637683;--pd4-line:#dde5e8;--pd4-pale:#f5f7f7}
.pd4-page{background:#fff;color:var(--pd4-ink)}
.pd4-page *{box-sizing:border-box}
.pd4-page main img{display:block;max-width:100%}
.pd4-page main h1,.pd4-page main h2,.pd4-page main h3,.pd4-page main p{margin-top:0}
.pd4-page main a:focus-visible{outline:3px solid var(--pd4-red);outline-offset:3px}
.pd4-kicker,.pd4-eyebrow{display:block;color:var(--pd4-blue);font-size:11px;font-weight:850;letter-spacing:.13em;text-transform:uppercase}
.pd4-eyebrow{color:var(--pd4-red)}
.pd4-breadcrumb{padding:16px 0;border-bottom:1px solid var(--pd4-line)}
.pd4-breadcrumb .po-wrap{display:flex;flex-wrap:wrap;gap:9px;align-items:center;color:#7f8e98;font-size:11px}
.pd4-breadcrumb a{color:#637887;text-decoration:none}
.pd4-breadcrumb a:hover{color:var(--pd4-blue)}
.pd4-product{padding:44px 0 62px;background:#f9faf9}
.pd4-product__grid{display:grid;grid-template-columns:minmax(0,1.03fr) minmax(0,.97fr);gap:5%;align-items:start}
.pd4-gallery{display:grid;gap:12px}
.pd4-gallery figure{position:relative;margin:0;overflow:hidden;background:#e8eeef}
.pd4-gallery__main{height:440px}
.pd4-gallery__secondary{height:155px}
.pd4-gallery img{width:100%;height:100%;object-fit:cover}
.pd4-gallery__secondary img{object-position:center 42%}
.pd4-gallery figcaption{position:absolute;left:14px;bottom:14px;max-width:calc(100% - 28px);padding:8px 11px;background:rgba(255,255,255,.95);color:var(--pd4-deep);font-size:10px;font-weight:700}
.pd4-product__details{padding:9px 0}
.pd4-product h1{max-width:650px;margin:18px 0 16px;color:var(--pd4-deep);font-size:clamp(40px,4vw,60px);line-height:1.08;letter-spacing:-.05em}
.pd4-product__lead{max-width:610px;color:#526976;font-size:15px;line-height:1.72}
.pd4-fitline{display:grid;gap:4px;margin:23px 0 24px;padding:13px 17px;background:#edf2f4;border-left:3px solid var(--pd4-red)}
.pd4-fitline span{color:var(--pd4-red);font-size:10px;font-weight:850;letter-spacing:.09em}
.pd4-fitline strong{color:var(--pd4-deep);font-size:13px;line-height:1.5}
.pd4-spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:0;border-top:1px solid var(--pd4-line);border-left:1px solid var(--pd4-line)}
.pd4-spec-grid div{padding:14px 18px;background:#fff;border-right:1px solid var(--pd4-line);border-bottom:1px solid var(--pd4-line)}
.pd4-spec-grid dt{color:var(--pd4-muted);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}
.pd4-spec-grid dd{margin:5px 0 0;color:var(--pd4-deep);font-size:20px;font-weight:850;letter-spacing:-.03em}
.pd4-product__micro{margin:13px 0 20px;color:var(--pd4-muted);font-size:11px;line-height:1.55}
.pd4-product__actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.pd4-button{display:inline-flex;align-items:center;justify-content:space-between;gap:18px;min-height:51px;padding:13px 18px;background:var(--pd4-blue);border:1px solid var(--pd4-blue);color:#fff!important;font-size:12px;font-weight:850;text-decoration:none;transition:background .2s ease,transform .2s ease}
.pd4-button:hover{background:#193f70;transform:translateY(-2px)}
.pd4-button--light{background:#fff;border-color:#fff;color:var(--pd4-deep)!important}
.pd4-button--light:hover{background:#e5eef3}
.pd4-link{display:inline-block;color:var(--pd4-blue);font-size:12px;font-weight:850;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:4px}
.pd4-commercial{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:28px;padding-top:16px;border-top:2px solid var(--pd4-deep)}
.pd4-commercial div{padding:0 11px;border-right:1px solid var(--pd4-line)}
.pd4-commercial div:first-child{padding-left:0}
.pd4-commercial div:last-child{border:0}
.pd4-commercial span{display:block;color:var(--pd4-muted);font-size:9px;font-weight:850;letter-spacing:.08em}
.pd4-commercial strong{display:block;margin-top:7px;color:var(--pd4-deep);font-size:12px;line-height:1.35}
.pd4-nav{position:sticky;top:0;z-index:25;background:#fff;border-bottom:1px solid var(--pd4-line);box-shadow:0 8px 20px rgba(30,57,73,.04)}
.pd4-nav .po-wrap{display:flex;align-items:center;gap:28px;min-height:62px;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}
.pd4-nav strong{margin-right:auto;color:var(--pd4-deep);font-size:10px;letter-spacing:.1em}
.pd4-nav a{color:#556d7b;font-size:11px;font-weight:750;text-decoration:none}
.pd4-nav a:hover{color:var(--pd4-blue)}
.pd4-section{padding:94px 0;scroll-margin-top:75px}
.pd4-section h2,.pd4-related h2,.pd4-enquiry h2{color:var(--pd4-deep);font-size:clamp(35px,3.5vw,53px);line-height:1.1;letter-spacing:-.045em}
.pd4-section p{color:var(--pd4-muted);font-size:14px;line-height:1.7}
.pd4-section-heading{display:flex;align-items:end;justify-content:space-between;gap:55px;margin-bottom:36px}
.pd4-section-heading h2{max-width:715px;margin:16px 0 0}
.pd4-section-heading>p{max-width:410px;margin:0}
.pd4-fit__grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(290px,.6fr);gap:22px}
.pd4-fit__main{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}
.pd4-fit__job{padding:30px 27px;border:1px solid var(--pd4-line);border-top:3px solid var(--pd4-blue);background:#fff}
.pd4-fit__job>span{color:var(--pd4-blue);font-size:10px;font-weight:850;letter-spacing:.09em}
.pd4-fit__job strong{display:block;margin:29px 0 14px;color:var(--pd4-deep);font-size:21px;line-height:1.25;letter-spacing:-.02em}
.pd4-fit__job p{margin:0;font-size:12px}
.pd4-fit__aside{padding:27px;background:#f3f6f7;border-left:3px solid var(--pd4-red)}
.pd4-fit__aside>span{color:var(--pd4-red);font-size:10px;font-weight:850;letter-spacing:.08em}
.pd4-fit__aside ul{margin:18px 0 22px;padding-left:19px}
.pd4-fit__aside li{padding:6px 0;color:var(--pd4-ink);font-size:12px;line-height:1.5}
.pd4-fit__aside li::marker{color:var(--pd4-red)}
.pd4-fit__aside a{color:var(--pd4-blue);font-size:11px;font-weight:850;text-decoration:none;border-bottom:1px solid currentColor}
.pd4-specs{background:var(--pd4-pale)}
.pd4-specs__table{overflow-x:auto;background:#fff;border:1px solid var(--pd4-line)}
.pd4-specs table{width:100%;border-collapse:collapse}
.pd4-specs th,.pd4-specs td{padding:17px 22px;border-bottom:1px solid var(--pd4-line);vertical-align:top;text-align:left;line-height:1.5}
.pd4-specs tr:last-child th,.pd4-specs tr:last-child td{border-bottom:0}
.pd4-specs thead th{background:#e8eef0;color:var(--pd4-deep);font-size:10px;text-transform:uppercase;letter-spacing:.09em}
.pd4-specs tbody th{width:25%;color:var(--pd4-deep);font-size:12px}
.pd4-specs tbody td{color:var(--pd4-muted);font-size:11px}
.pd4-specs tbody td:nth-child(2){width:27%}
.pd4-specs tbody td strong{color:var(--pd4-deep);font-size:13px}
.pd4-specs__foot{display:flex;gap:25px;align-items:center;padding:23px 27px;background:var(--pd4-deep);color:#fff}
.pd4-specs__foot strong{flex:0 0 245px;font-size:14px}
.pd4-specs__foot span{color:#d0dce3;font-size:12px;line-height:1.55}
.pd4-sizing__grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:9%;align-items:center}
.pd4-sizing h2{max-width:610px;margin:17px 0 19px}
.pd4-sizing__steps{margin:29px 0}
.pd4-sizing__steps>div{display:flex;gap:17px;padding:15px 0;border-top:1px solid var(--pd4-line)}
.pd4-sizing__steps>div:last-child{border-bottom:1px solid var(--pd4-line)}
.pd4-sizing__steps span{color:var(--pd4-blue);font-size:11px;font-weight:850}
.pd4-sizing__steps p{margin:0;font-size:12px}
.pd4-sizing__steps strong{display:block;color:var(--pd4-deep);font-size:13px}
.pd4-drawing{border:1px solid var(--pd4-line);background:#f5f8fa}
.pd4-drawing__head{display:grid;gap:6px;padding:23px 25px;background:var(--pd4-deep);color:#fff}
.pd4-drawing__head span{color:#a7c6d8;font-size:10px;font-weight:850;letter-spacing:.09em}
.pd4-drawing__head strong{font-size:18px}
.pd4-drawing svg{display:block;width:100%;height:auto}
.pd4-drawing p{margin:0;padding:0 25px 23px;font-size:11px;line-height:1.55}
.pd4-scope{background:#f5f7f7}
.pd4-scope__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(310px,.85fr);gap:23px}
.pd4-scope__list{background:#fff;border:1px solid var(--pd4-line)}
.pd4-scope__list>div{display:grid;grid-template-columns:145px 1fr;gap:7px 20px;padding:27px 30px;border-bottom:1px solid var(--pd4-line)}
.pd4-scope__list>div:last-child{border:0}
.pd4-scope__list span{grid-row:span 2;color:var(--pd4-blue);font-size:10px;font-weight:850;letter-spacing:.08em}
.pd4-scope__list strong{color:var(--pd4-deep);font-size:19px}
.pd4-scope__list p{margin:0;font-size:12px}
.pd4-scope__answers{padding:31px 34px;background:var(--pd4-deep);color:#fff}
.pd4-scope__answers>span{color:#a8c7d9;font-size:10px;font-weight:850;letter-spacing:.09em}
.pd4-scope__answers>div{padding:20px 0;border-top:1px solid rgba(255,255,255,.2)}
.pd4-scope__answers>div:first-of-type{margin-top:22px}
.pd4-scope__answers small{display:block;color:#a8c7d9;font-size:10px;font-weight:850;letter-spacing:.08em}
.pd4-scope__answers strong{display:block;margin:8px 0;color:#fff;font-size:18px}
.pd4-scope__answers p{margin:0;color:#d0dce2;font-size:11px}
.pd4-questions__grid{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);gap:11%}
.pd4-questions h2{margin:17px 0}
.pd4-questions details{border-top:1px solid var(--pd4-line)}
.pd4-questions details:last-child{border-bottom:1px solid var(--pd4-line)}
.pd4-questions summary{position:relative;padding:21px 34px 21px 0;color:var(--pd4-deep);font-size:16px;font-weight:750;cursor:pointer;list-style:none}
.pd4-questions summary::after{content:'+';position:absolute;right:5px;color:var(--pd4-blue);font-size:23px;font-weight:400}
.pd4-questions details[open] summary::after{content:'−'}
.pd4-questions details p{margin:0 0 21px;font-size:12px}
.pd4-related{padding:70px 0;background:#e9eff1}
.pd4-related h2{margin:15px 0 27px}
.pd4-related__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}
.pd4-related__grid a{display:flex;flex-direction:column;justify-content:space-between;gap:20px;min-height:132px;padding:22px;background:#fff;color:var(--pd4-deep);text-decoration:none}
.pd4-related__grid a:hover{box-shadow:0 8px 22px rgba(24,57,74,.1)}
.pd4-related__grid strong{font-size:17px;line-height:1.3}
.pd4-related__grid span{color:var(--pd4-blue);font-size:11px;font-weight:800}
.pd4-enquiry{padding:84px 0;background:#203b53;color:#fff;scroll-margin-top:75px}
.pd4-enquiry__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:11%}
.pd4-enquiry .pd4-kicker{color:#b2cede}
.pd4-enquiry h2{max-width:630px;margin:18px 0;color:#fff}
.pd4-enquiry p{max-width:640px;color:#cfdae1;font-size:15px;line-height:1.72}
.pd4-enquiry .pd4-button{margin-top:14px}
.pd4-enquiry__brief{align-self:center;padding:29px 33px;border:1px solid rgba(255,255,255,.22)}
.pd4-enquiry__brief span{color:#b2cede;font-size:10px;font-weight:850;letter-spacing:.09em}
.pd4-enquiry__brief ul{margin:19px 0 0;padding-left:19px}
.pd4-enquiry__brief li{padding:6px 0;color:#d2dce2;font-size:12px;line-height:1.55}
@media(max-width:1060px){.pd4-product__grid{gap:3%}.pd4-product h1{font-size:clamp(38px,4vw,53px)}.pd4-gallery__main{height:390px}.pd4-fit__grid{grid-template-columns:1fr}.pd4-scope__grid{grid-template-columns:1.1fr .9fr}}
@media(max-width:760px){.pd4-product{padding:28px 0 45px}.pd4-product__grid,.pd4-sizing__grid,.pd4-questions__grid,.pd4-enquiry__grid{grid-template-columns:1fr;gap:30px}.pd4-gallery{grid-template-columns:1fr 1fr}.pd4-gallery__main{grid-column:1/-1;height:345px}.pd4-gallery__secondary{grid-column:1/-1;height:130px}.pd4-product__details{padding:0}.pd4-nav strong{display:none}.pd4-section{padding:66px 0}.pd4-section-heading{display:block}.pd4-section-heading>p{margin-top:17px}.pd4-fit__main{grid-template-columns:1fr}.pd4-fit__job strong{margin:16px 0 10px}.pd4-scope__grid,.pd4-related__grid{grid-template-columns:1fr}.pd4-specs__foot{display:block}.pd4-specs__foot span{display:block;margin-top:8px}.pd4-related{padding:60px 0}.pd4-enquiry{padding:70px 0}}
@media(max-width:520px){.pd4-product h1{font-size:39px}.pd4-product__lead{font-size:14px}.pd4-gallery__main{height:270px}.pd4-product__actions{display:grid;gap:17px}.pd4-button{width:100%}.pd4-commercial{grid-template-columns:1fr;gap:13px}.pd4-commercial div{padding:0 0 12px;border-right:0;border-bottom:1px solid var(--pd4-line)}.pd4-commercial div:last-child{border-bottom:0}.pd4-specs th,.pd4-specs td{min-width:125px;padding:13px 11px}.pd4-specs tbody td:nth-child(3){min-width:200px}.pd4-scope__list>div{grid-template-columns:1fr;gap:7px}.pd4-scope__list span{grid-row:auto}.pd4-scope__answers{padding:27px 25px}}