@font-face{font-family:Rubik;src:url("/media/fonts/rubik-regular.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:Rubik;src:url("/media/fonts/rubik-medium.woff2") format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:Rubik;src:url("/media/fonts/rubik-bold.woff2") format("woff2");font-weight:700;font-display:swap}
:root{--ink:#332b27;--muted:#70645b;--brand:#704631;--brand-dark:#4f3022;--accent:#b64b2e;--accent-hover:#953b25;--soft:#f5efe6;--warm:#fbf8f3;--line:#e6dbce;--radius:20px;--header-height:64px;--content-width:1600px;--gutter:24px;color-scheme:light}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:#fff;color:var(--ink);font:400 16px/1.6 Rubik,Arial,sans-serif;-webkit-text-size-adjust:100%}
button,input,select,textarea{font:inherit;color:inherit}
button,summary{cursor:pointer}
button{touch-action:manipulation}
button:disabled{cursor:default;opacity:.65}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
svg{max-width:100%}
h1,h2,h3,p{overflow-wrap:break-word}
h1,h2,h3{line-height:1.15;text-wrap:balance}
h2{font-size:clamp(28px,3.2vw,44px);font-weight:500;letter-spacing:-.035em}
h3{font-size:22px;font-weight:500;letter-spacing:-.02em}
p{margin:0 0 1em}
[hidden]{display:none}
:focus{outline:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:4px}
.container{width:min(var(--content-width),calc(100% - 2*var(--gutter)));margin-inline:auto}
.section{padding:88px 0}
.section h2{margin:0 0 40px}
.center{text-align:center}
.section-intro{max-width:680px;margin:-20px auto 36px;text-align:center;color:var(--muted)}
.section-kicker{font-size:13px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--brand);margin:0 0 16px}
.lead{font-size:18px;color:var(--muted);max-width:760px;margin:40px auto 24px}
.small{font-size:14px;color:var(--muted)}
.skip-link{position:fixed;left:16px;top:-80px;z-index:60;padding:12px;background:white}
.skip-link:focus{top:12px}
.ui-icon{display:inline-block;width:1.2em;height:1.2em;vertical-align:-.2em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:14px 24px;border:1px solid transparent;border-radius:12px;background:var(--accent);color:#fff;font-size:16px;font-weight:500;line-height:1.35;text-decoration:none;text-align:center;transition:background .18s,transform .18s,box-shadow .18s}
.button:hover{background:var(--accent-hover);box-shadow:0 6px 18px #683f261c}
.button:active{transform:translateY(1px)}
.button-secondary{background:transparent;border-color:#cbb7a2;color:var(--brand)}
.button-secondary:hover{background:#f3e7d9}
.site-header{position:fixed;top:max(18px,env(safe-area-inset-top,0px));left:max(var(--gutter),env(safe-area-inset-left,0px));right:max(var(--gutter),env(safe-area-inset-right,0px));z-index:20;width:min(var(--content-width),calc(100% - 2*var(--gutter)));margin-inline:auto;border:1px solid #ffffff35;border-radius:18px;background:transparent;color:white;box-shadow:0 8px 30px #32251d1a}
.site-header::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;border-radius:inherit;background:#392a22e8;-webkit-backdrop-filter:blur(22px) saturate(145%);backdrop-filter:blur(22px) saturate(145%)}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;height:calc(var(--header-height) - 2px);padding:6px 18px}
.header-home{display:flex;align-items:center;flex:none}
.header-home img{width:128px;height:50px;object-fit:contain}
.nav{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav>a{display:flex;align-items:center;min-height:44px;text-decoration:none;font-size:14px;font-weight:500}
.nav>a:hover{color:#f6c397}
.nav .button{min-height:44px;padding:10px 18px;font-size:14px}
.menu-toggle,.mobile-menu-contacts{display:none}

/* Первый экран: текст и фотография разнесены, цвета изображения сохранены. */
.hero{padding:136px 0 68px;background:var(--warm)}
.hero-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-content{min-width:0}
.hero .section-kicker{color:var(--brand);font-size:12px;letter-spacing:.1em;margin-bottom:22px}
.hero h1{margin:0 0 24px;font-size:clamp(40px,4.4vw,62px);font-weight:500;letter-spacing:-.045em;line-height:1.06}
.hero h1 span{display:block;color:var(--brand)}
.hero-description{font-size:18px;line-height:1.7;color:var(--muted);max-width:540px;margin-bottom:24px}
.hero-product-link{display:flex;align-items:center;gap:16px;max-width:430px;margin:0 0 28px;padding:10px 18px 10px 8px;border:1px solid var(--line);border-radius:16px;background:#ffffffb3;text-decoration:none;transition:border-color .18s,background .18s}
.hero-product-link:hover{background:#fff;border-color:#c8ad96}
.hero-product-link>img{width:96px;height:96px;object-fit:contain;flex:none}
.hero-product-link>span{display:grid;gap:6px}
.hero-product-link strong{font-size:15px;font-weight:500;line-height:1.4}
.hero-product-link>span>span{font-size:13px;line-height:1.55;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-note{max-width:460px;margin:20px 0 0;color:var(--muted);font-size:13px;line-height:1.6}
.hero-interior{position:relative;margin:0;align-self:stretch;min-height:560px;max-height:670px;border-radius:26px;overflow:hidden;background:#eadcc9}
.hero-interior>img{width:100%;height:100%;object-fit:cover}
.hero-interior figcaption{position:absolute;left:20px;right:20px;bottom:20px;padding:15px 18px;border:1px solid #ffffffa6;border-radius:14px;background:#fff9f0e8;color:var(--ink);font-size:13px;line-height:1.5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.hero-interior figcaption span{display:block;font-size:15px;font-weight:500}
.text-link{display:inline-flex;align-items:center;gap:12px;padding-block:10px;min-height:44px;color:var(--brand);font-size:15px;font-weight:500;text-decoration-thickness:1px;text-underline-offset:5px}
.technology{padding-bottom:60px}
.technology-overview{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;margin-bottom:52px}
.technology-copy h2{margin-bottom:22px}
.technology-copy>p:not(.section-kicker):not(.technology-lead){color:var(--muted);font-size:16px;line-height:1.75}
.technology-copy>p.technology-lead{color:var(--ink);font-size:22px;line-height:1.45}
.technology-facts{list-style:none;padding:0;margin:26px 0 16px;display:grid;gap:12px}
.technology-facts li{position:relative;padding-left:28px;font-size:15px}
.technology-facts li::before{content:"";position:absolute;left:3px;top:6px;width:7px;height:12px;border:solid var(--accent);border-width:0 2px 2px 0;transform:rotate(45deg)}
.technology-product{margin:0;padding:18px 24px 16px;border:1px solid var(--line);border-radius:24px;background:var(--soft);text-align:center}
.technology-product .zoom{position:relative;width:100%;display:block;border-radius:16px}
.technology-product img{width:100%;max-height:440px;object-fit:contain}
.product-zoom-label{display:inline-flex;align-items:center;gap:10px;margin:8px 0 14px;font-size:13px;font-weight:500;color:var(--brand)}
.technology-product figcaption{font-size:11px;line-height:1.5;color:var(--muted)}
.technology-explainer{padding:34px;border:1px solid var(--line);border-radius:24px;background:var(--warm);scroll-margin-top:105px}
.technology-explainer-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:26px}
.technology-explainer-heading .section-kicker{margin-bottom:10px;font-size:11px}
.technology-explainer-heading h3{font-size:28px;margin:0}
.technology-explainer-heading>p{margin:0 0 2px;font-size:13px;color:var(--muted);white-space:nowrap}
.technology-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;border-bottom:1px solid var(--line);padding-bottom:18px}
.technology-tabs button{display:flex;align-items:center;justify-content:center;gap:10px;padding:13px 14px;min-height:50px;border:1px solid #d9cabb;border-radius:12px;background:#fff9f2;color:var(--muted);font-size:15px;font-weight:500;line-height:1.4;transition:background .18s,border-color .18s,color .18s}
.technology-tabs button>span{font-size:11px;opacity:.8}
.technology-tabs button:hover{border-color:var(--brand);color:var(--brand)}
.technology-tabs button[aria-selected=true]{background:var(--brand);border-color:var(--brand);color:#fff}
.technology-demo{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center;padding:28px 0}
.technology-diagram{margin:0}
.technology-diagram svg{width:100%;height:auto;display:block}
.technology-diagram figcaption{font-size:11px;color:var(--muted);text-align:center;margin:12px 10px 0}
.diagram-highlight,.diagram-rays,.diagram-wire{opacity:0;transition:opacity .2s}
.technology-diagram[data-step=placement] .diagram-film .diagram-highlight,
.technology-diagram[data-step=heat] .diagram-rays,
.technology-diagram[data-step=control] .diagram-controller .diagram-highlight,
.technology-diagram[data-step=control] .diagram-wire{opacity:1}
.technology-panels{display:grid;align-items:center;min-height:270px}
.technology-panels>div{grid-area:1/1}
.technology-panels [hidden]{display:block;visibility:hidden}
.technology-step-number{display:block;color:var(--accent);font-size:14px;font-weight:500;letter-spacing:.1em;margin-bottom:16px}
.technology-panels h4{margin:0 0 14px;font-size:25px;font-weight:500;line-height:1.25;letter-spacing:-.025em;text-wrap:balance}
.technology-panels p{font-size:15px;line-height:1.75;color:var(--muted);margin:0}
.technology-bottom{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-top:24px;border-top:1px solid var(--line)}
.technology-bottom p{max-width:620px;font-size:13px;line-height:1.7;color:var(--muted);margin:0}
.technology-bottom .button{flex:none;font-size:14px}

.feature-strip{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;z-index:2;margin-top:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 16px 38px #4a31200a;overflow:hidden}
.feature{padding:24px 18px;text-align:center;line-height:1.45;font-size:14px;font-weight:500}
.feature+.feature{border-left:1px solid var(--line)}
.feature-mark{display:block;margin-bottom:12px}
.feature-mark img{width:44px;height:44px;object-fit:contain;margin:auto}
.feature-mark img,.uses img,.heat-step-icon,.heat-guarantee-icon,.payment-grid img,.heat-service-points img,.heat-contact-icon{filter:brightness(0);opacity:.68}
.two-columns{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:64px;align-items:start}
.two-columns h2{margin-bottom:28px}
.benefit-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 26px}
.benefit-list li{position:relative;padding-left:30px;font-size:16px}
.benefit-list li::before{content:"✓";position:absolute;left:0;top:1px;width:21px;height:21px;display:grid;place-items:center;border-radius:50%;background:#f3e6d6;color:var(--brand);font-size:13px;font-weight:700}
.consult-card{padding:34px;background:var(--soft);border:1px solid var(--line);border-radius:var(--radius)}
.consult-card h3{margin:0 0 14px;font-size:26px}
.consult-card>p{color:var(--muted);font-size:15px}
.heat-mini-form{display:grid;gap:14px}
.uses{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px}
.uses span{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;text-align:center;gap:12px;padding:20px 10px;border:1px solid var(--line);border-radius:16px;font-size:13px;line-height:1.4}
.uses img{width:42px;height:42px;object-fit:contain}
.warm-section{background:var(--warm);padding-bottom:0;overflow:hidden}
.warm-section>.container{display:grid;grid-template-columns:minmax(0,1fr) 340px;align-items:end;gap:40px}
.calculator-card{padding-bottom:80px}
.calculator-card h2{max-width:600px;margin-bottom:20px}
.calculator-card>p{color:var(--muted);margin-bottom:28px}
.calculator-card .button{justify-self:start}
.heat-installer{width:340px;height:auto;align-self:end}
.form-stack{display:grid;gap:18px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
label{display:grid;gap:8px;font-size:14px;font-weight:500}
input,textarea,select{width:100%;min-width:0;min-height:52px;border:1px solid #cbbbaf;border-radius:12px;background:#fff;padding:13px 15px;font-size:16px;font-weight:400;line-height:1.5;-webkit-appearance:none;appearance:none;transition:border-color .18s,box-shadow .18s}
input::placeholder,textarea::placeholder{color:#837469;opacity:1}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:inset 0 0 0 1px var(--brand)}
input[aria-invalid=true],textarea[aria-invalid=true]{border-color:#a53729}
input[readonly],textarea[readonly]{background:#f8f2eb}
textarea{min-height:120px;resize:vertical}
.field-error{font-size:13px;font-weight:400;color:#a12626}
.honey{display:none}
.form-result{margin:0;font-size:14px;font-weight:400;line-height:1.5}
.form-result:empty{display:none}
.form-result[data-state=error]{color:#a12626}
.form-result[data-state=success]{padding:12px;background:#f2e7d9;color:#64452f;border-radius:10px}
.form-result[data-state=pending]{color:var(--muted)}
.heat-process h2,.soft-section h2,#services h2,#guarantees h2,.heat-certificates h2,#reviews h2{text-align:center}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;list-style:none;padding:0;margin:0 0 30px;counter-reset:none}
.steps li{position:relative;display:flex;flex-direction:column;gap:18px;align-items:flex-start;padding:26px 22px;border:1px solid var(--line);border-radius:16px;font-size:15px;line-height:1.45}
.heat-step-icon{width:40px;height:40px;object-fit:contain}
.heat-step-number{position:absolute;top:22px;right:22px;font-size:14px;color:#887668}
.soft-section{background:var(--soft)}
.heat-project-stage{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 40px)/3);gap:20px;overflow-x:auto;overscroll-behavior-inline:contain;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:#bba38a transparent;padding:3px 3px 16px}
.heat-project-card{min-width:0;scroll-snap-align:start}
.heat-project-card>button{display:block;width:100%;padding:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:white;text-align:left}
.heat-project-card img{width:100%;aspect-ratio:485/500;object-fit:cover;transition:transform .25s}
.heat-project-card>button:hover img{transform:scale(1.025)}
.heat-project-caption{display:flex;flex-direction:column;align-items:flex-start;gap:14px;padding:22px;font-size:19px;font-weight:500}
.heat-project-caption .button{min-height:40px;font-size:14px;padding:9px 15px;background:var(--brand)}
.heat-project-controls,.carousel-controls{display:flex;align-items:center;justify-content:center;gap:18px;margin:22px 0 0}
.heat-project-controls button,.carousel-controls button{display:grid;place-items:center;width:46px;height:46px;border:1px solid #d4c2ae;border-radius:50%;background:white;color:var(--brand);font-size:22px}
.heat-project-controls button:hover,.carousel-controls button:hover{background:#f0e4d5}
.heat-project-controls output{font-size:14px;min-width:64px;text-align:center;color:var(--muted)}
.offer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;counter-reset:offers}
.offer-grid article{position:relative;padding:32px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(130deg,#fff,#fbf7f1);display:flex;flex-direction:column;align-items:flex-start;counter-increment:offers}
.offer-grid article::before{content:"0" counter(offers);font-size:13px;letter-spacing:.08em;color:var(--brand);border-radius:8px;padding:5px 9px;background:#f0e3d2;margin-bottom:22px}
.offer-grid h3{margin:0 0 14px;max-width:440px}
.offer-grid p{font-size:15px;color:var(--muted);margin-bottom:24px}
.offer-grid .button{margin-top:auto;background:var(--brand);min-height:44px;font-size:14px}
.offer-grid .button:hover{background:var(--brand-dark)}
#guarantees{padding-top:0}
.guarantees{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.guarantees>div{display:flex;align-items:center;gap:20px;padding:26px;border:1px solid var(--line);border-radius:16px;font-size:14px}
.heat-guarantee-icon{width:44px;height:44px;object-fit:contain;flex:none}
.guarantees strong{display:block;font-size:26px;line-height:1.3;font-weight:500;margin-bottom:4px;color:var(--brand)}
.payment-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.payment-grid>div{display:flex;align-items:center;justify-content:center;gap:18px;padding:22px;border:1px solid #e1d3c2;border-radius:16px;font-weight:500;font-size:16px}
.payment-grid img{width:46px;height:46px;object-fit:contain}
.certificates{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;max-width:850px;margin:auto}
.zoom{border:0;background:transparent;padding:0;cursor:zoom-in}
.certificates .zoom{border:1px solid var(--line);border-radius:16px;padding:14px;background:var(--soft)}
.certificates img{width:100%;aspect-ratio:3/4.2;object-fit:contain}
.heat-questions{background:var(--warm)}
.faq details{border-bottom:1px solid #e3d7c9}
.faq summary{position:relative;list-style:none;padding:20px 34px 20px 0;font-weight:500;font-size:16px;line-height:1.5}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:3px;top:16px;font-size:26px;font-weight:400;color:var(--brand)}
.faq details[open] summary::after{content:"−"}
.faq p{font-size:15px;color:var(--muted);padding-right:16px;line-height:1.75}
.heat-questions .consult-card{background:#fff}
.carousel{display:flex;flex-direction:column;margin-bottom:30px}
.carousel-controls{order:2}
.scroll-track{display:grid;grid-auto-flow:column;grid-auto-columns:100%;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-inline:contain;scrollbar-width:thin;scrollbar-color:#cab6a0 transparent;gap:24px;padding-bottom:16px}
.review-card{display:grid;grid-template-columns:240px minmax(0,1fr);gap:36px;align-items:start;scroll-snap-align:start;border:1px solid var(--line);border-radius:var(--radius);padding:34px;background:var(--soft)}
.heat-review-person{display:grid;justify-items:start;gap:16px}
.heat-review-person .zoom{width:150px;height:130px;overflow:hidden;border-radius:14px}
.heat-review-person .zoom img{width:100%;height:100%;object-fit:cover}
.heat-review-person .is-placeholder{padding:25px;background:#ede0cd}
.heat-review-person h3{font-size:18px;margin:0}
.review-text strong{display:block;margin-bottom:16px;font-size:20px;font-weight:500;line-height:1.4}
.review-text p{margin:0;color:#66574a;font-size:16px}
.contacts{background:var(--soft)}
.contacts-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:stretch}
.contact-map{min-height:380px;border-radius:var(--radius);overflow:hidden;border:1px solid #dfd1c0;background:#f1e9de}
.contact-map iframe{display:block;border:0;width:100%;height:100%;min-height:380px}
.contact-card{padding:32px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.contact-card h2{font-size:32px;margin-bottom:28px}
.contact-card>a,.contact-card>p{display:flex;align-items:center;gap:15px;text-decoration:none;font-size:clamp(16px,1.6vw,21px);margin:0 0 23px;overflow-wrap:anywhere}
.heat-contact-icon{width:28px;height:28px;flex:none;object-fit:contain}
.contact-card .button{display:inline-flex;margin:4px 0 0;font-size:16px}
.footer{background:#352820;color:#fff;padding:42px 0 25px}
.footer-row{display:flex;align-items:center;justify-content:space-between;gap:30px}
.footer .brand img{width:154px;height:60px}
.footer-phone{text-align:right}
.footer-phone>a[href^="tel:"]{text-decoration:none;font-size:24px;font-weight:500}
.footer p{font-size:12px;color:#d8c9bc;margin:8px 0 0}
.footer-policy{font-size:13px;color:#e0d2c6;text-underline-offset:4px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid #ffffff20;margin-top:26px;padding-top:14px}
.footer-bottom p{margin:0}
.developer-link{display:grid;place-items:center;width:49px;height:49px;flex:none}
.developer-link img{width:24.5px;height:24.5px;object-fit:contain}
dialog{width:min(520px,calc(100% - 32px));max-height:calc(100dvh - 32px);padding:42px 32px 30px;border:1px solid var(--line);border-radius:22px;color:var(--ink);background:#fff;box-shadow:0 24px 80px #36241938;overscroll-behavior:contain}
dialog::backdrop{background:#33251db8;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}
dialog h2{font-size:28px;margin:0 24px 26px 0}
.close-dialog{position:absolute;right:10px;top:10px;display:grid;place-items:center;width:40px;height:40px;padding:0;border:0;border-radius:10px;background:#f5eee5;color:var(--ink);font-size:28px;line-height:1}
.close-dialog:hover{background:#ede0d1}
.close-dialog:focus-visible{outline:2px solid #8c6043;outline-offset:0}
body:has(dialog[open]){overflow:hidden}
#image-dialog{width:auto;max-width:calc(100% - 32px);padding:54px 16px 16px}
#image-dialog img{max-width:100%;max-height:calc(100dvh - 110px);width:auto;margin:auto;object-fit:contain}
.heat-detail-dialog{width:min(880px,calc(100% - 32px))}
.heat-detail-content{display:grid;grid-template-columns:1fr 1.15fr;gap:32px;align-items:center}
.heat-detail-content>div:only-child{grid-column:1/-1}
.heat-detail-content>img{width:100%;max-height:450px;object-fit:contain;border-radius:14px}
.heat-detail-content ul{padding-left:20px}
.heat-detail-content li{margin-block:10px}
.heat-detail-content p,.heat-detail-content li{font-size:16px}
.project-facts{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 20px}
.project-facts span{padding:7px 12px;background:var(--soft);border-radius:8px;font-size:14px;color:var(--brand)}
.heat-service-points{list-style:none;padding:0}
.heat-service-points li{display:flex;align-items:center;gap:14px}
.heat-service-points img{width:36px;height:36px;flex:none}
.thermostat-illustration{padding:30px}
.policy{max-width:900px;padding-block:140px 70px;line-height:1.8}
.policy h1{font-size:clamp(27px,4vw,42px);margin:0 0 28px}
.policy h2{font-size:23px;margin:32px 0 18px}
.policy ol,.policy ul{padding-left:1.4em}
.policy li{margin-block:.6em}
.policy a{overflow-wrap:anywhere}
noscript{display:block;padding:100px 24px 18px;background:var(--warm);text-align:center}

@media(max-width:1100px){.nav{gap:16px}.header-row{gap:16px}.two-columns{gap:32px}.guarantees>div{padding:22px;gap:14px}.payment-grid>div{flex-direction:column;text-align:center}}
@media(max-width:991px),(pointer:coarse) and (max-height:500px){
:root{--gutter:20px}
.site-header{top:max(12px,env(safe-area-inset-top,0px))}
.site-header::before{background:#3c2d24c9}
.header-row{height:calc(var(--header-height) - 2px);padding:7px 12px}
.header-home img{width:116px;height:45px}
.menu-toggle{display:grid;place-items:center;width:44px;height:44px;padding:9px;border:1px solid #ffffff38;border-radius:12px;background:#ffffff12;color:white}
.menu-toggle .ui-icon{width:24px;height:24px}
.menu-close,.menu-toggle[aria-expanded=true] .menu-open{display:none}
.menu-toggle[aria-expanded=true] .menu-close{display:block}
.nav{display:none;position:absolute;top:calc(100% + 10px);left:0;right:0;padding:18px;border:1px solid #ffffff35;border-radius:18px;background:#3c2c23ed;max-height:calc(100dvh - 110px - env(safe-area-inset-top,0px));overflow-y:auto;-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);box-shadow:0 12px 32px #36231826}
.nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:0}
.nav>a{font-size:16px;padding:8px 10px}
.nav>.header-callback{display:none}
.mobile-menu-contacts{display:grid;gap:14px;border-top:1px solid #ffffff25;margin-top:12px;padding:20px 10px 8px}
.mobile-menu-contacts .menu-phone{font-size:21px;text-decoration:none;font-weight:500}
.mobile-menu-contacts .button{font-size:16px}
.site-header :focus-visible{outline-color:#f0cba5}

.feature{padding:20px 12px;font-size:12px}
.two-columns{grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:26px}
.benefit-list{grid-template-columns:1fr;gap:14px}
.uses{grid-template-columns:repeat(4,minmax(0,1fr))}
.warm-section>.container{grid-template-columns:minmax(0,1fr) 240px;gap:20px}
.heat-installer{width:240px}
.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
.heat-project-stage{grid-auto-columns:calc((100% - 20px)/2)}
.guarantees{grid-template-columns:repeat(2,minmax(0,1fr))}
.review-card{grid-template-columns:180px minmax(0,1fr);gap:24px;padding:26px}
.contacts-grid{grid-template-columns:1fr 1fr;gap:20px}
.contact-card{padding:26px}
.footer-row{flex-wrap:wrap}
}
@media(max-width:600px){
:root{--gutter:16px}
html{scroll-padding-top:100px}
.section{padding:58px 0}
.section h2{margin-bottom:28px}
.section-intro{margin-top:-12px}

.feature-strip{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:0;border-radius:16px}
.feature{display:flex;align-items:center;gap:12px;text-align:left;font-size:12px;padding:18px 14px;border-bottom:1px solid var(--line)}
.feature+.feature{border-left:0}
.feature:nth-child(even){border-left:1px solid var(--line)}
.feature:last-child{grid-column:1/-1;justify-content:center;border-bottom:0}
.feature-mark{margin:0;flex:none}
.feature-mark img{width:32px;height:32px}
.two-columns{grid-template-columns:1fr;gap:28px}
.benefit-list{gap:16px}
.consult-card{padding:26px}
.consult-card h3{font-size:24px}
.uses{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.uses span{flex-direction:row;text-align:left;font-size:12px;padding:16px 12px}
.uses img{width:34px;height:34px;flex:none}
.uses span:last-child{grid-column:1/-1;justify-content:center}
.lead{font-size:16px}
.warm-section{padding-bottom:0}
.warm-section>.container{grid-template-columns:1fr;gap:0}
.calculator-card{padding-bottom:16px}
.calculator-card .button{width:100%}
.form-grid{gap:12px}
.form-grid label{font-size:12px}
.heat-installer{width:190px;margin:12px 12px 0 auto}
.steps{gap:12px;margin-bottom:24px}
.steps li{font-size:13px;padding:20px 16px;gap:14px}
.heat-step-number{top:18px;right:16px;font-size:12px}
.heat-step-icon{width:32px;height:32px}
.heat-project-stage{grid-auto-columns:85%;gap:14px}
.heat-project-card img{aspect-ratio:485/500}
.heat-project-caption{padding:20px;font-size:18px}
.offer-grid{grid-template-columns:1fr;gap:14px}
.offer-grid article{padding:26px}
.offer-grid h3{font-size:23px}
.guarantees{gap:12px}
.guarantees>div{flex-direction:column;align-items:flex-start;gap:12px;padding:20px 16px;font-size:13px}
.guarantees strong{font-size:25px}
.heat-guarantee-icon{width:36px;height:36px}
.payment-grid{grid-template-columns:1fr;gap:12px}
.payment-grid>div{flex-direction:row;justify-content:flex-start;text-align:left;padding:18px 22px}
.payment-grid img{width:38px;height:38px}
.certificates{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.certificates .zoom{padding:5px;border-radius:9px}
.faq summary{font-size:15px;padding-block:18px}
.review-card{grid-template-columns:1fr;padding:24px;gap:24px}
.heat-review-person{display:flex;align-items:center;gap:18px}
.heat-review-person .zoom{width:76px;height:76px;flex:none}
.heat-review-person .is-placeholder{padding:14px}
.heat-review-person h3{font-size:16px}
.review-text strong{font-size:18px}
.review-text p{font-size:15px;line-height:1.7}
.contacts-grid{grid-template-columns:1fr}
.contact-card{order:-1}
.contact-card>a,.contact-card>p{font-size:17px}
.contact-map,.contact-map iframe{min-height:330px}
.footer-row{flex-direction:column;gap:24px;text-align:center}
.footer-phone{text-align:center}
.footer-phone>a[href^="tel:"]{font-size:22px}
.footer-bottom{align-items:center}
.footer-bottom p{font-size:11px;max-width:240px}
dialog{padding:48px 24px 26px;border-radius:18px;max-height:calc(100dvh - 2*max(16px,env(safe-area-inset-top,0px),env(safe-area-inset-bottom,0px)))}
dialog h2{font-size:25px;margin-right:8px}
.heat-detail-content{grid-template-columns:1fr;gap:24px}
.heat-detail-content>img{max-height:280px}
.policy{padding-top:125px;font-size:15px}
.policy h1{font-size:27px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.hero-product-link,.technology-tabs button,.diagram-highlight,.diagram-rays,.diagram-wire,.heat-project-card img,input,textarea,select{transition:none}}

@media(max-width:1100px){
.hero-layout{gap:36px}
.hero h1{font-size:50px}
.hero-actions .button{font-size:14px;padding-inline:18px}
.technology-overview{gap:40px}
}
@media(max-width:991px),(pointer:coarse) and (max-height:500px){
.hero{padding-top:120px}
.hero-layout{gap:28px;grid-template-columns:1fr 1fr;align-items:start}
.hero h1{font-size:clamp(34px,5vw,46px)}
.hero-description{font-size:16px}
.hero-product-link{gap:10px;padding-right:12px}
.hero-product-link>img{width:76px;height:76px}
.hero-product-link strong{font-size:13px}
.hero-product-link>span>span{font-size:12px}
.hero-interior{min-height:520px;max-height:none}
.hero-interior figcaption{left:14px;right:14px;bottom:14px;padding:12px 14px}
.hero-interior figcaption span{font-size:14px}
.technology-overview{gap:30px}
.technology-product{padding:14px}
.technology-explainer{padding:26px}
.technology-explainer-heading{display:block}
.technology-explainer-heading>p{margin-top:12px}
.technology-demo{gap:26px;grid-template-columns:1.1fr 1fr}
.technology-panels h4{font-size:22px}
.technology-panels{min-height:305px}
.technology-bottom{align-items:flex-start}
.technology-bottom .button{max-width:220px}
}
@media(max-width:600px){
.hero{padding:118px 0 48px}
.hero-layout{grid-template-columns:1fr;gap:30px}
.hero .section-kicker{font-size:11px;margin-bottom:18px;letter-spacing:.07em}
.hero h1{font-size:clamp(35px,10vw,46px);max-width:460px;margin-bottom:20px}
.hero-description{font-size:16px;line-height:1.7;margin-bottom:22px}
.hero-product-link{max-width:none;margin-bottom:24px;padding:8px 14px 8px 6px}
.hero-product-link>img{width:82px;height:82px}
.hero-product-link strong{font-size:14px}
.hero-product-link>span>span{font-size:12px}
.hero-actions{gap:10px}
.hero-actions .button{flex:1 1 auto;padding:14px 16px;font-size:14px}
.hero-note{font-size:12px;margin-top:16px}
.hero-interior{min-height:0;height:auto;aspect-ratio:5/4;border-radius:20px}
.hero-interior>img{object-position:center 70%}
.hero-interior figcaption{font-size:12px}
.hero-interior figcaption span{display:inline;font-size:12px}
.technology{padding-bottom:40px}
.technology-overview{grid-template-columns:1fr;gap:28px;margin-bottom:32px}
.technology-copy>p.technology-lead{font-size:20px}
.technology-copy>p:not(.section-kicker):not(.technology-lead){font-size:15px}
.technology-product{padding:14px 20px}
.technology-product img{max-height:350px}
.technology-explainer{padding:24px 18px;border-radius:20px}
.technology-explainer-heading h3{font-size:25px}
.technology-tabs{gap:6px}
.technology-tabs button{font-size:12px;flex-direction:column;gap:4px;padding:10px 4px}
.technology-tabs button>span{font-size:10px}
.technology-demo{grid-template-columns:1fr;gap:22px;padding:24px 0}
.technology-panels{min-height:250px;align-items:start}
.technology-panels h4{font-size:24px}
.technology-panels p{font-size:15px}
.technology-bottom{flex-direction:column;gap:20px}
.technology-bottom .button{width:100%;max-width:none}
.technology-diagram figcaption{font-size:10px;margin-inline:0}
}