:root{--rg-ink:#113856;--rg-muted:#546d82;--rg-blue:#006ecb;--rg-pale:#edf6fc;--rg-line:#dce7ef;--rg-white:#fff;--rg-green:#008744;font-family:Arial,Helvetica,sans-serif;color:var(--rg-ink);background:#fff}*{box-sizing:border-box}body{margin:0}a{color:inherit}img{display:block;max-width:100%;height:auto}button,input,select{font:inherit}button,a,summary,input,select{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #1688e9;outline-offset:4px}svg{width:22px;height:22px;flex:0 0 auto}.rg-skip{position:fixed;left:16px;top:-80px;background:#fff;padding:12px;z-index:50}.rg-skip:focus{top:12px}.rg-container{width:min(1240px,calc(100% - 80px));margin-inline:auto}.rg-header{min-height:92px;display:flex;align-items:center;gap:28px;justify-content:space-between;padding:18px max(24px,calc((100vw - 1440px)/2));border-bottom:1px solid var(--rg-line);background:#fff;position:relative;z-index:10}.rg-brand{flex:0 0 205px}.rg-nav{display:flex;align-items:center;justify-content:center;gap:25px;font-size:13px;font-weight:700;min-width:0}.rg-nav>a,.rg-products summary{text-decoration:none;white-space:nowrap}.rg-nav>a:hover{color:var(--rg-blue)}.rg-products summary{cursor:pointer;list-style:none}.rg-products summary:after{content:'⌄';margin-left:7px}.rg-mega{position:absolute;inset:calc(100% - 2px) 24px auto;background:#fff;padding:24px;box-shadow:0 20px 35px #11385616;border:1px solid var(--rg-line);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.rg-mega>a{display:flex;align-items:center;gap:14px;padding:18px;text-decoration:none;background:#f4f9fc;border-radius:8px;min-width:0}.rg-mega svg{width:34px;height:34px;color:var(--rg-blue)}.rg-header-wa{display:inline-flex;gap:10px;align-items:center;justify-content:center;min-height:46px;padding:12px 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25px;overflow-wrap:break-word}.rg-tagline{display:block;color:var(--rg-blue);font-size:.48em;line-height:1.3;letter-spacing:-.02em;margin-top:18px}.rg-lead{font-size:17px;line-height:1.75;color:var(--rg-muted);max-width:760px;margin:0 0 28px}.rg-button{display:inline-flex;align-items:center;justify-content:center;gap:16px;background:var(--rg-blue);border:1px solid var(--rg-blue);color:#fff;font-size:13px;font-weight:700;padding:16px 21px;text-decoration:none;border-radius:5px;min-height:50px;cursor:pointer;transition:background .18s,transform .18s}.rg-button:hover{background:#005ca8;transform:translateY(-1px)}.rg-commercial-note{font-size:11px;line-height:1.6;color:#657f93;margin:15px 0 0}.rg-visual{min-height:340px;display:grid;place-items:center;border-radius:18px;background:#fff;border:1px solid #e5eff6;box-shadow:0 20px 65px #11385608;padding:28px;overflow:hidden}.rg-visual>img{width:100%;max-height:390px;object-fit:contain;aspect-ratio:1.2}.rg-concept{text-align:center;display:grid;justify-items:center;gap:16px;padding:26px 16px}.rg-concept>svg{width:110px;height:110px;color:var(--rg-blue);background:var(--rg-pale);padding:22px;border-radius:25px}.rg-concept strong{font-size:24px;font-weight:500}.rg-concept p{font-size:17px;line-height:1.5;margin:0;color:var(--rg-muted)}.rg-concept span{font-size:11px;color:var(--rg-muted)}.rg-reading{display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,.42fr);gap:80px;padding-block:70px}.rg-copy{max-width:790px;min-width:0}.rg-focus{display:inline-block;margin:0 0 16px;font-size:12px;color:var(--rg-blue);background:#edf6fc;padding:9px 12px;border-radius:4px}.rg-text-section{margin-bottom:34px}.rg-text-section h2,.rg-checklist h2{font-size:clamp(23px,2.2vw,31px);line-height:1.2;letter-spacing:-.025em;font-weight:500;margin:16px 0}.rg-text-section p{font-size:16px;line-height:1.85;color:#4a657c;margin:0 0 18px}.rg-checklist{margin:35px 0;padding:27px 30px;background:#f3f8fc;border-left:3px solid var(--rg-blue);border-radius:5px}.rg-checklist h2{font-size:20px;margin-top:0}.rg-checklist ul{padding-left:20px;display:grid;gap:12px;color:var(--rg-muted);font-size:14px;line-height:1.55;margin:20px 0 0}.rg-checklist li::marker{color:var(--rg-blue)}.rg-consult{align-self:start;border:1px solid var(--rg-line);border-radius:12px;padding:28px;background:#fff;position:sticky;top:25px}.rg-consult h2{font-size:25px;font-weight:500;line-height:1.25;letter-spacing:-.025em;margin:0 0 18px}.rg-consult p{font-size:14px;color:var(--rg-muted);line-height:1.75}.rg-consult .rg-button{width:100%;margin-top:9px;padding-inline:12px}.rg-text-link{display:flex;justify-content:space-between;align-items:center;gap:12px;text-decoration:none;font-size:12px;line-height:1.5;border-bottom:1px solid var(--rg-line);padding:18px 0 12px}.rg-text-link svg{width:17px;height:17px}.rg-faq{background:#f4f9fc;border-block:1px solid var(--rg-line);padding:64px 0}.rg-faq-grid{display:grid;grid-template-columns:minmax(0,.65fr) minmax(0,1fr);gap:70px}.rg-faq h2,.rg-related h2{font-size:clamp(28px,3vw,40px);font-weight:500;letter-spacing:-.035em;margin:0;line-height:1.15}.rg-faq details{border-bottom:1px solid #d4e3ee;padding:0 0 24px;margin-bottom:24px}.rg-faq summary{font-size:18px;line-height:1.5;font-weight:600;cursor:pointer}.rg-faq details p{color:var(--rg-muted);font-size:15px;line-height:1.75;margin:16px 0 0}.rg-related{padding-block:65px}.rg-related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:30px}.rg-related-grid a{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:22px;border:1px solid var(--rg-line);border-radius:7px;text-decoration:none;font-size:14px;line-height:1.5}.rg-related-grid 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nav{display:flex;gap:23px;flex-wrap:wrap}.rg-footer-legal>span{flex:0 0 auto}.rg-footer-legal>span a{font-weight:700;color:var(--rg-ink)}.rg-floating-wa{position:fixed;bottom:18px;right:20px;z-index:12;display:flex;align-items:center;gap:13px;padding:14px 18px;background:var(--rg-green);color:#fff;border-radius:12px;box-shadow:0 7px 24px #00613225;text-decoration:none;max-width:calc(100vw - 32px)}.rg-floating-wa>img{width:27px;height:27px;object-fit:contain}.rg-floating-wa span{font-size:10px;line-height:1.5}.rg-floating-wa strong{display:block;font-size:13px}.rg-floating-wa>svg{width:18px;height:18px}.rg-hub-head{padding-block:66px 36px}.rg-hub-head h1{max-width:900px}.rg-filter{margin-top:36px;display:flex;align-items:end;gap:15px;flex-wrap:wrap}.rg-filter label{display:grid;gap:9px;font-size:12px;font-weight:600;flex:1 1 260px}.rg-filter input,.rg-filter select{height:50px;border:1px solid #bdd0df;border-radius:5px;padding:12px 14px;background:#fff;color:var(--rg-ink);min-width:0;width:100%}.rg-filter .rg-button{flex:0 0 auto}.rg-muted{font-size:12px;color:var(--rg-muted);min-height:16px}.rg-city-list{padding-bottom:70px}.rg-city-block{padding-block:35px;border-bottom:1px solid var(--rg-line);scroll-margin-top:20px}.rg-city-block h2{font-size:30px;font-weight:500;margin:0 0 24px;letter-spacing:-.035em}.rg-city-block h2>span{display:inline-block;margin-left:14px;font-size:12px;font-weight:400;color:var(--rg-muted);letter-spacing:0}.rg-hub-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.rg-hub-card{display:block;position:relative;border:1px solid var(--rg-line);border-radius:9px;padding:23px 48px 23px 23px;text-decoration:none;min-height:128px;background:#fff;transition:border-color .18s}.rg-hub-card:hover{border-color:var(--rg-blue)}.rg-hub-card>span{font-size:11px;color:var(--rg-blue)}.rg-hub-card h3{font-size:17px;font-weight:500;line-height:1.45;letter-spacing:-.015em;margin:10px 0 0}.rg-hub-card>svg{position:absolute;right:19px;top:24px;width:17px;height:17px}.rg-hub-card[hidden],.rg-city-block[hidden]{display:none!important}@media(max-width:1200px){.rg-header{gap:20px;padding-inline:24px}.rg-brand{flex-basis:185px}.rg-nav{gap:17px;font-size:12px}.rg-header-wa{padding:12px}.rg-header-wa span{display:none}.rg-hero-grid{gap:36px}.rg-reading{gap:45px}}@media(max-width:980px){.rg-nav{display:none}.rg-mobile-menu{display:block;order:4}.rg-mobile-menu>summary{cursor:pointer;font-size:13px;padding:12px;border:1px solid var(--rg-line);border-radius:5px;list-style:none}.rg-mobile-menu nav{position:absolute;left:20px;right:20px;top:calc(100% - 1px);background:#fff;border:1px solid var(--rg-line);box-shadow:0 15px 25px #11385615;padding:15px;display:grid;gap:2px;max-height:70vh;overflow:auto}.rg-mobile-menu nav a{padding:13px;text-decoration:none;font-size:14px}.rg-header-wa{margin-left:auto}.rg-hero-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:25px}.rg-visual{min-height:280px;padding:16px}.rg-reading{grid-template-columns:minmax(0,1fr) 270px;gap:30px}.rg-container{width:calc(100% - 48px)}.rg-faq-grid{gap:35px}.rg-hub-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:720px){.rg-header{min-height:76px;padding:14px 18px;gap:12px}.rg-brand{flex:0 1 170px;min-width:125px}.rg-header-wa{min-height:40px;padding:9px;flex-shrink:0}.rg-header-wa img{width:21px;height:21px}.rg-container{width:calc(100% - 36px)}.rg-breadcrumb{padding-top:20px;font-size:11px}.rg-hero-grid{grid-template-columns:1fr;padding:32px 0 40px;gap:28px}.rg-eyebrow{margin-bottom:16px;font-size:9px;letter-spacing:.13em}h1{font-size:clamp(33px,8.2vw,47px);margin-bottom:20px}.rg-tagline{margin-top:14px;font-size:.5em}.rg-lead{font-size:16px;line-height:1.7;margin-bottom:23px}.rg-visual{min-height:235px;max-width:470px;width:100%;justify-self:center}.rg-visual>img{max-height:275px;aspect-ratio:1.45}.rg-concept{padding:15px}.rg-concept>svg{width:88px;height:88px}.rg-reading{grid-template-columns:1fr;padding-block:42px;gap:20px}.rg-text-section{margin-bottom:28px}.rg-text-section p{font-size:15px;line-height:1.8}.rg-checklist{padding:22px;margin-block:25px}.rg-consult{position:static;padding:24px}.rg-faq{padding-block:42px}.rg-faq-grid{grid-template-columns:1fr;gap:28px}.rg-faq summary{font-size:17px}.rg-related{padding-block:42px}.rg-related-grid{grid-template-columns:1fr;gap:10px;margin-top:24px}.rg-related-grid a{padding:18px}.rg-geo{margin-top:28px;display:grid;gap:6px}.rg-footer{padding-top:38px;padding-bottom:115px}.rg-footer-grid{grid-template-columns:1fr;gap:25px}.rg-footer-grid>div:first-child>img{max-width:200px}.rg-footer-legal{display:grid;gap:22px;margin-top:28px}.rg-footer-legal nav{gap:14px}.rg-footer-legal>span{font-size:11px}.rg-floating-wa{bottom:14px;right:14px;padding:12px 14px;gap:10px}.rg-floating-wa>svg{display:none}.rg-floating-wa strong{font-size:12px}.rg-floating-wa span{font-size:9px}.rg-floating-wa>img{width:25px;height:25px}.rg-hub-head{padding-block:42px 18px}.rg-filter{display:grid;gap:17px;margin-top:28px}.rg-hub-cards{grid-template-columns:1fr}.rg-city-block{padding-block:28px}.rg-city-block h2{font-size:27px}.rg-hub-card{min-height:110px;padding:20px 44px 20px 20px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
/* Cylinder purchase forms: prepare a customer-controlled WhatsApp message. */
.rg-quote-form[hidden]{display:none!important}.rg-quote-form{display:grid;gap:16px;margin-top:24px;padding-top:22px;border-top:1px solid var(--rg-line)}.rg-quote-form label{display:grid;gap:8px;font-size:12px;font-weight:600;line-height:1.5}.rg-quote-form input,.rg-quote-form textarea{width:100%;min-width:0;border:1px solid #bdd0df;border-radius:5px;background:#fff;padding:11px;color:var(--rg-ink);font:inherit;font-size:13px;line-height:1.5}.rg-quote-form textarea{resize:vertical;min-height:90px}.rg-quote-form input{min-height:43px}.rg-quote-form small{font-size:10px;line-height:1.6;color:var(--rg-muted)}.rg-quote-form .rg-button{white-space:normal;line-height:1.5;text-align:center;margin-top:0}.rg-consult-buy{position:static}@media(max-width:720px){.rg-quote-form input,.rg-quote-form textarea{font-size:16px}}