@charset "UTF-8";
:root{--navy:#123347;--blue:#126ba3;--teal:#087680;--paper:#f4f8fa;--white:#fff;--ink:#1b2a34;--muted:#5d6f7a;--line:#dce5e9;--shell:1240px;--header:90px;color-scheme:light;font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--white);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;font-size:16px;line-height:1.8}
html{scroll-behavior:smooth;scroll-padding-top:110px}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button,a,input,summary{touch-action:manipulation;-webkit-tap-highlight-color:rgba(18,107,163,.14)}
button{cursor:pointer}
button:disabled{cursor:default}
button{color:inherit}
h1,h2,h3,h4,p,figure,dl,dd{margin:0}
h1,h2,h3{color:var(--navy);line-height:1.35;font-weight:650;text-wrap:balance;letter-spacing:-.035em}
h1{font-size:clamp(36px,4vw,58px);line-height:1.27}
h2{font-size:clamp(29px,3vw,40px)}
h3{font-size:23px}
p{overflow-wrap:break-word}
ul{margin:0;padding:0;list-style:none}
::selection{background:#c6e5ec;color:var(--navy)}
:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
[hidden]{display:none!important}
.shell{width:min(var(--shell),calc(100% - 96px));margin-inline:auto}
.section{padding-block:100px}
.section-kicker{font-size:14px;font-weight:600;color:var(--teal);line-height:1.6;margin-bottom:19px;letter-spacing:.035em}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:48px}
.section-heading>p{max-width:355px;color:var(--muted);font-size:16px}
.section-heading>.text-link{flex-shrink:0}
.icon{flex:none}
.text-link{display:inline-flex;align-items:center;gap:14px;color:var(--blue);font-size:15px;font-weight:600;min-height:44px;line-height:1.5}
.text-link .icon{width:20px;transition:transform .2s ease}
.text-link:hover{color:var(--teal)}
.text-link:hover .icon{transform:translateX(3px)}
.button{display:inline-flex;gap:14px;justify-content:center;align-items:center;min-height:50px;padding:13px 23px;border:1px solid transparent;border-radius:4px;font-size:15px;font-weight:550;line-height:1.4;white-space:nowrap;transition:background-color .2s,color .2s,border-color .2s}
.button .icon{width:19px;height:19px}
.button-primary{background:var(--navy);color:white}
.button-primary:hover{background:var(--blue)}
.button-outline{border-color:#c6d4dc;background:transparent;color:var(--navy)}
.button-outline:hover{border-color:var(--blue);background:#eaf2f6}
.button-white{background:white;color:var(--navy)}
.button-white:hover{background:#d9edf1}
.button-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.source-note{font-size:13px;color:var(--muted);line-height:1.8}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:12px;left:16px;z-index:1000;transform:translateY(-160%);background:var(--navy);color:#fff;padding:10px 18px}
.skip-link:focus{transform:translateY(0)}
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.97);border-bottom:1px solid #e6ecef}
.header-inner{height:var(--header);display:flex;align-items:center;gap:34px;justify-content:space-between}
.brand{display:inline-flex;flex-direction:column;gap:0;flex-shrink:0;line-height:1.2;color:var(--navy)}
.brand strong{font-size:27px;letter-spacing:.12em;font-weight:750}
.brand>span{font-size:9px;letter-spacing:.19em;margin-top:8px;font-family:"Segoe UI",Arial,sans-serif;font-weight:600}
#main-navigation{margin-left:auto}
#main-navigation ul{display:flex;gap:27px}
#main-navigation a{position:relative;display:flex;align-items:center;min-height:var(--header);font-size:14px;color:#52646f;white-space:nowrap;transition:color .15s}
#main-navigation a:hover,#main-navigation a[aria-current]{color:var(--blue)}
#main-navigation a[aria-current]::after{content:"";position:absolute;height:3px;left:0;right:0;bottom:0;background:var(--teal)}
.header-phone{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;white-space:nowrap;color:var(--navy);padding-left:22px;border-left:1px solid var(--line);min-height:28px;font-variant-numeric:tabular-nums}
.header-phone .icon{width:18px;height:18px}
.header-phone:hover{color:var(--blue)}
.menu-toggle{display:none;background:transparent;border:1px solid var(--line);width:44px;height:44px;border-radius:4px;align-items:center;justify-content:center;flex-direction:column;gap:6px}
.menu-toggle span{height:1.5px;width:20px;background:var(--navy);transition:transform .2s}
.menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.75px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}
.hero{background:linear-gradient(110deg,#f3f8fb 0%,#f8fbfc 50%,#eef4f6 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:54px;align-items:center;padding-block:66px 74px}
.hero-copy{padding-block:22px}
.hero h1{font-size:clamp(38px,3.55vw,51px);line-height:1.4;letter-spacing:-.045em;white-space:normal}
.hero-subtitle{display:block;font-size:.82em;margin-top:10px;line-height:1.4}
.hero .section-kicker{margin-bottom:26px;display:flex;align-items:center;gap:12px}
.hero .section-kicker::before{content:"";height:2px;width:26px;background:var(--teal)}
.hero-description{color:var(--muted);margin:26px 0 31px;max-width:425px;font-size:17px;line-height:1.95}
.hero-note{display:flex;align-items:center;gap:10px;font-size:12px;color:#657b88;margin-top:38px}
.status-dot{display:inline-block;flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--teal)}
.hero-image{position:relative;margin:0;aspect-ratio:1.13;min-width:0;border-radius:7px 7px 28px 7px;box-shadow:0 18px 45px #12334714}
.hero-image>img{width:100%;height:100%;object-fit:cover;object-position:58% 50%;border-radius:inherit}
.hero-image figcaption{position:absolute;bottom:22px;left:22px;right:22px;display:flex;justify-content:space-between;align-items:center;gap:12px;background:rgba(255,255,255,.95);padding:17px 20px;border-radius:3px;box-shadow:0 3px 20px #1233470a}
.hero-image figcaption div{display:flex;flex-direction:column;gap:1px}
.hero-image figcaption span{font-size:11px;color:var(--muted)}
.hero-image figcaption strong{font-size:15px;color:var(--navy);font-weight:600}
.hero-image figcaption a{display:grid;place-items:center;width:38px;height:38px;background:var(--paper);color:var(--navy);border-radius:50%}
.hero-image figcaption a:hover{background:var(--navy);color:white}
.image-corner{position:absolute;width:60px;height:60px;right:-12px;top:-12px;border-top:3px solid var(--teal);border-right:3px solid var(--teal);border-top-right-radius:10px;opacity:.5;pointer-events:none}
.industry-strip{border-block:1px solid var(--line);background:white}
.industry-strip-inner{min-height:92px;display:flex;gap:34px;align-items:center;justify-content:space-between}
.industry-strip-inner>span{font-size:13px;color:var(--muted);border-right:1px solid var(--line);padding-right:35px}
.industry-strip a{display:flex;gap:12px;align-items:center;font-size:15px;font-weight:550;color:var(--navy);min-height:44px}
.industry-strip a .icon{color:#698594;width:22px}
.industry-strip a:hover{color:var(--blue)}
.heating-grid{display:grid;grid-template-columns:.93fr 1fr;gap:78px;align-items:center}
.heating-photo{height:490px;position:relative;overflow:hidden;border-radius:5px;background:#e9eef1}
.heating-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 30%}
.heating-photo figcaption{position:absolute;left:0;bottom:0;right:0;color:white;font-size:13px;background:linear-gradient(transparent,#0a2736b3);padding:48px 24px 20px}
.heating-story h3{font-size:28px;margin:19px 0 20px}
.subtle-tag{display:inline-block;font-size:12px;background:#eaf3f5;color:var(--teal);padding:4px 10px;border-radius:3px}
.heating-story>p{color:var(--muted)}
.detail-lines{margin:25px 0 22px;border-top:1px solid var(--line)}
.detail-lines>div{display:grid;grid-template-columns:88px 1fr;gap:15px;border-bottom:1px solid var(--line);padding:13px 0;font-size:14px}
.detail-lines dt{color:var(--muted)}
.detail-lines dd{color:var(--navy)}
.heating-story>.source-note{margin-top:10px}
.technical-section{background:var(--paper);border-block:1px solid #eaf0f3}
.technical-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:70px;align-items:center}
.technical-grid>div>p:not(.section-kicker){margin-top:25px;color:var(--muted);max-width:420px}
.technical-grid .text-link{margin-top:23px}
.flow-figure{padding:15px 12px 24px;background:#fff;border:1px solid var(--line);border-radius:6px}
.flow-figure svg{width:100%;height:auto}
.flow-figure svg text{font-size:16px;fill:var(--navy);font-family:inherit}
.flow-figure figcaption{color:var(--muted);font-size:12px;text-align:center;padding-inline:12px}
.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.industry-card{display:flex;flex-direction:column;padding:32px 28px 22px;border:1px solid var(--line);border-radius:4px;transition:border-color .2s,background-color .2s}
.industry-card:hover{border-color:#86afbe;background:#f9fcfd}
.industry-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:35px;color:var(--teal)}
.industry-card-top>.icon:first-child{width:29px;height:29px}
.industry-card-top>.icon:last-child{color:#728e9c;width:19px}
.industry-card h3{font-size:23px;margin-bottom:16px}
.industry-card p{font-size:15px;color:var(--muted);margin-bottom:26px}
.card-bottom{font-size:12px;color:#59717e;margin-top:auto;border-top:1px solid var(--line);padding-top:17px}
.about-strip{padding:55px 0 65px;border-top:1px solid var(--line)}
.about-strip-inner{display:grid;grid-template-columns:.43fr 1fr 1fr;gap:45px;align-items:start}
.about-strip h2{font-size:30px}
.about-strip-inner>div>p{color:var(--muted);font-size:15px;margin-bottom:14px}
.contact-band{padding:62px 0;background:var(--navy);color:white;position:relative}
.contact-band-inner{display:flex;gap:44px;align-items:center;justify-content:space-between}
.contact-band h2{color:white;font-size:32px;margin-bottom:15px}
.contact-band .section-kicker{color:#9fd4db;margin-bottom:13px}
.contact-band p:not(.section-kicker){font-size:15px;color:#bfd0d9;max-width:710px}
.contact-band-action{display:flex;flex-direction:column;align-items:center;gap:16px;flex-shrink:0}
.band-phone{display:flex;align-items:center;gap:8px;font-size:15px;letter-spacing:.04em;color:#d6e3e9;min-height:24px}
.band-phone:hover{color:white}
.band-phone .icon{width:16px;height:16px}
.site-footer{background:#f8fafb;color:var(--muted)}
.footer-main{display:grid;grid-template-columns:1.5fr .8fr 1fr;gap:70px;padding-block:62px 50px}
.footer-brand p{font-size:14px;margin-top:23px;line-height:1.9}
.footer-label{display:block;font-size:13px;color:var(--muted);margin-bottom:21px}
.footer-links{display:grid;grid-template-columns:1fr 1fr;align-content:start;gap:13px 26px;font-size:14px}
.footer-links .footer-label{grid-column:1/-1;margin-bottom:9px}
.footer-links a:hover{color:var(--blue)}
.footer-contact>a:not(.text-link){font-size:27px;line-height:1.5;color:var(--navy);font-weight:550;font-variant-numeric:tabular-nums;white-space:nowrap}
.footer-contact>p{font-size:13px;margin:12px 0 5px}
.footer-contact .text-link{font-size:13px}
.footer-bottom{border-top:1px solid var(--line);padding-block:21px 26px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:12px;color:#647682}
.footer-bottom>a{white-space:nowrap;text-decoration:underline;text-underline-offset:3px}
.footer-bottom>a:hover{color:var(--blue)}
.page-heading{background:var(--paper);padding:69px 0 65px;border-bottom:1px solid #e5edf0}
.page-heading .section-kicker{margin-bottom:21px}
.page-heading h1{font-size:clamp(36px,3.9vw,53px);line-height:1.4}
.page-intro{max-width:720px;color:var(--muted);margin-top:24px;font-size:17px;line-height:1.9}
.product-grid{display:grid;grid-template-columns:.9fr 1fr;gap:100px;align-items:center}
.product-image{background:#fafcfd;border:1px solid var(--line);border-radius:6px;padding:30px 20px 20px}
.product-image img{height:530px;width:100%;object-fit:contain}
.product-image figcaption{font-size:12px;text-align:center;margin-top:15px;color:var(--muted)}
.product-description h2{margin-bottom:22px}
.product-description>p:not(.section-kicker){color:var(--muted)}
.component-list{margin:25px 0 31px}
.component-list>div{padding:17px 0;border-top:1px solid var(--line)}
.component-list h3{font-size:17px;margin-bottom:6px}
.component-list p{font-size:14px;color:var(--muted)}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.steps-grid article{border-top:2px solid #a6c8d3;padding-top:27px}
.steps-grid article>span{font-size:13px;letter-spacing:.05em;color:var(--teal);font-variant-numeric:tabular-nums}
.steps-grid h3{font-size:22px;margin:16px 0}
.steps-grid p{font-size:15px;color:var(--muted)}
.faq-section{display:grid;grid-template-columns:1fr 1.5fr;gap:70px;padding-top:10px}
.faq-list details{border-top:1px solid var(--line)}
.faq-list details:last-child{border-bottom:1px solid var(--line)}
.faq-list summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:25px;min-height:80px;font-size:16px;color:var(--navy);font-weight:550}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary .icon{width:19px;transition:transform .2s}
.faq-list details[open] summary .icon{transform:rotate(45deg)}
.faq-list details>p{font-size:15px;color:var(--muted);padding:0 38px 25px 0}
.anchor-nav{display:flex;gap:12px;margin-top:35px;flex-wrap:wrap}
.anchor-nav a{padding:9px 21px;min-height:44px;border:1px solid #cfdee4;border-radius:3px;font-size:14px;background:white}
.anchor-nav a:hover{color:var(--blue);border-color:var(--blue)}
.solution-section{display:grid;grid-template-columns:.9fr 1fr;gap:90px;align-items:center;padding:80px 0;border-bottom:1px solid var(--line);scroll-margin-top:110px}
.solution-section:last-child{border-bottom:0}
.solution-section:nth-child(even)>figure{order:2}
.solution-section>figure{position:relative;height:440px;border-radius:5px;overflow:hidden;background:var(--paper)}
.solution-section>figure img{width:100%;height:100%;object-fit:cover;object-position:center 30%}
.solution-section figcaption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,#0a2736cf);padding:45px 22px 17px;font-size:12px;color:white}
.industry-symbol{display:grid;place-items:center;background:#e8f3f5;border-radius:4px;width:44px;height:44px;color:var(--teal);margin-bottom:23px}
.solution-copy .lead{margin:18px 0 24px;color:var(--muted)}
.solution-info{border-top:1px solid var(--line);padding:20px 0 29px}
.solution-info h3{font-size:14px;margin-bottom:4px}
.solution-info p{font-size:14px;color:var(--muted);margin-bottom:14px}
.solution-info p:last-child{margin-bottom:0}
.related-cases{margin-bottom:26px}
.related-cases h3{font-size:14px;margin-bottom:10px}
.related-cases ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.related-cases .text-link{font-size:14px;line-height:1.65;padding:6px 0;max-width:100%;overflow-wrap:anywhere}
.related-cases .icon{flex-shrink:0}
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.case-card{border:1px solid var(--line);border-radius:5px;overflow:hidden;background:white;display:flex;flex-direction:column}
.case-photo{height:265px;position:relative;overflow:hidden;display:block;background:var(--paper)}
.case-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 30%;transition:transform .3s}
.case-card:hover .case-photo img{transform:scale(1.025)}
.case-photo.case-photo--contain img{object-fit:contain;object-position:center}
.case-card:hover .case-photo--contain img{transform:none}
.case-card-copy{padding:27px 25px 25px;display:flex;flex-direction:column;flex:1}
.case-kind{font-size:12px;color:var(--teal);margin-bottom:12px;display:flex;flex-wrap:wrap;align-items:center;gap:7px 12px}
.case-media-label{padding:3px 8px;background:var(--paper);border-radius:3px;color:var(--navy)}
.case-card--text .case-card-copy{grid-column:1/-1}
.case-card-copy,.case-article,.case-facts,.solution-copy{min-width:0}
.case-card-copy h2{font-size:23px;line-height:1.5;margin-bottom:18px}
.case-card-copy h2>a:hover{color:var(--blue)}
.case-card-copy>p:not(.case-kind){font-size:14px;color:var(--muted);margin-bottom:26px}
.case-card-copy>.text-link{margin-top:auto}
.case-editorial-note{display:flex;gap:22px;margin-top:40px;background:var(--paper);padding:23px 28px;border-radius:4px;align-items:center;color:var(--muted);font-size:14px}
.case-editorial-note>span{color:var(--teal)}
.breadcrumb{display:flex;gap:14px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:31px}
.breadcrumb a:hover{color:var(--blue)}
.case-heading{padding-top:30px}
.case-heading h1{font-size:clamp(31px,3.4vw,46px);max-width:1000px}
.client-name{font-size:13px;color:var(--muted);margin-top:22px}
.case-detail-layout{display:grid;grid-template-columns:270px 1fr;gap:80px;align-items:start;padding-top:65px}
.case-facts{position:sticky;top:120px;border-top:3px solid var(--teal);padding-top:24px}
.case-facts>h2{font-size:20px;margin-bottom:25px}
.case-facts dl>div{padding-bottom:20px}
.case-facts dt{font-size:12px;color:var(--muted);margin-bottom:5px}
.case-facts dd{font-size:14px;color:var(--navy)}
.case-facts .button{margin-top:10px;width:100%;font-size:14px}
.case-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-bottom:43px;align-items:start}
.case-gallery--single{grid-template-columns:minmax(0,1fr);max-width:680px}
.case-site-gallery>h2{font-size:23px;margin:0 0 20px}
.article-section+.case-site-gallery{margin-top:42px}
.case-site-gallery .case-gallery-item>a{display:flex;align-items:center;justify-content:center;position:relative;height:auto;min-height:0;border-radius:4px;background:var(--paper);overflow:hidden}
.case-gallery img{width:auto;height:auto;max-width:100%;max-height:400px;object-fit:contain;object-position:center}
.case-gallery--single img{max-height:480px}
.zoom-indicator{position:absolute;right:10px;bottom:10px;display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.95);padding:4px 8px;border-radius:3px;font-size:11px;color:var(--navy)}
.zoom-indicator .icon{width:14px;height:14px}
.case-gallery figcaption{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7}
@media(max-width:600px){.case-site-gallery .case-gallery{grid-template-columns:minmax(0,1fr);gap:26px}.case-site-gallery .case-gallery img{max-height:400px}}
.article-section{margin:35px 0}
.article-section h2{font-size:25px;margin-bottom:18px}
.article-section p{margin:14px 0;color:#495e6b;font-size:16px;line-height:1.95}
.evidence-note{padding:24px 28px;background:var(--paper);border-left:3px solid #8fb8c6;margin-top:42px}
.evidence-note h2{font-size:16px;margin-bottom:12px}
.evidence-note p{font-size:13px;color:var(--muted)}
.evidence-note .source-note{margin-top:14px;font-size:12px}
.article-navigation{display:flex;justify-content:space-between;gap:20px;padding-top:32px;margin-top:30px;border-top:1px solid var(--line)}
.about-story{display:grid;grid-template-columns:1fr 1.1fr;gap:85px;align-items:center}
.about-story>div>p:not(.section-kicker){color:var(--muted);margin-top:24px}
.about-story .button{margin-top:30px}
.about-story .about-links{margin-top:28px}
.about-story .about-links .button{margin-top:0}
.about-story>figure{position:relative;height:460px;overflow:hidden;border-radius:5px}
.about-story img{width:100%;height:100%;object-fit:cover}
.about-story figcaption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,#123347bf);color:white;font-size:12px;padding:45px 24px 20px}
.focus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:50px}
.focus-grid .icon{width:28px;height:28px;color:var(--teal);margin-bottom:27px}
.focus-grid h3{font-size:21px;margin-bottom:17px}
.focus-grid p{color:var(--muted);font-size:15px}
.about-bottom{display:flex;justify-content:space-between;align-items:center;gap:40px}
.about-bottom h2{font-size:28px}
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.phone-panel{background:var(--paper);border:1px solid var(--line);padding:40px 36px 25px;border-radius:5px}
.phone-panel h2{font-size:20px}
.phone-number{display:inline-block;white-space:nowrap;font-size:clamp(28px,2.75vw,39px);line-height:1.4;letter-spacing:.015em;font-weight:600;color:var(--navy);margin:28px 0 10px;font-variant-numeric:tabular-nums}
.phone-number:hover{color:var(--blue)}
.phone-panel>p:not(.section-kicker){font-size:13px;color:var(--muted)}
.phone-panel .button-row{margin-top:25px;gap:10px}
.phone-panel .button{padding:12px 17px;font-size:14px;gap:8px}
.phone-panel-bottom{border-top:1px solid var(--line);display:flex;gap:9px;align-items:center;margin-top:18px;padding-top:20px;font-size:12px;color:var(--muted)}
.copy-feedback{font-size:13px;color:var(--teal)!important;min-height:24px;white-space:pre-line;line-height:1.7;margin-top:14px}
.contact-context{margin:20px 0 0;border-left:2px solid var(--teal);padding:10px 15px;background:#e9f2f5}
.contact-context>span{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}
.contact-context>strong{font-size:14px;line-height:1.7;color:var(--navy);font-weight:550}
.preparation h2{font-size:30px;margin-bottom:19px}
.preparation>p:not(.section-kicker){font-size:15px;color:var(--muted)}
.preparation fieldset{padding:0;border:0;margin:24px 0 27px}
.check-item{display:flex;align-items:center;gap:13px;padding:11px 0;cursor:pointer;font-size:15px}
.check-item input{width:18px;height:18px;margin:0;accent-color:var(--teal);flex-shrink:0;cursor:pointer}
.check-item:hover span{color:var(--blue)}
.preparation>.source-note{font-size:12px!important;margin-top:6px}
.contact-next{padding:0 0 65px;display:flex;align-items:center;gap:32px}
.contact-next>span{font-size:14px;color:var(--muted);margin-right:auto}
.not-found{padding-block:120px;min-height:60vh}
.not-found h1{font-size:42px}
.not-found>p:not(.section-kicker){margin:24px 0 32px;color:var(--muted)}
.lightbox{background:transparent;border:0;padding:52px 10px 14px;width:fit-content;max-width:94vw;max-height:95vh;color:white;overflow:visible}
.lightbox::backdrop{background:#071d2bef;backdrop-filter:blur(5px)}
.lightbox img{max-height:75vh;max-width:88vw;object-fit:contain;width:auto;height:auto;margin:auto;background:#fff;border-radius:3px}
.lightbox>p{text-align:center;font-size:13px;margin-top:16px;max-width:80vw}
.lightbox-close{position:absolute;right:8px;top:0;display:grid;place-items:center;width:42px;height:42px;border-radius:50%;border:1px solid #9cacb6;color:white;background:transparent}
.lightbox-close:hover{background:#ffffff25}
.lightbox-open{overflow:hidden}
@media(min-width:1600px){.hero-grid{padding-block:80px 85px}.hero-image{aspect-ratio:1.16}}
.solution-section>figure.installation-photo,.about-story>figure.installation-photo{height:auto;background:var(--paper)}
.solution-section>figure.installation-photo img,.about-story>figure.installation-photo img{width:100%;height:auto;object-fit:contain;object-position:center}
.solution-section>figure.installation-photo figcaption,.about-story>figure.installation-photo figcaption{position:static;background:none;padding:12px 16px;color:var(--muted);font-size:12px;line-height:1.7}
@media(max-width:1200px){.shell{width:calc(100% - 64px)}.header-inner{gap:22px}#main-navigation ul{gap:19px}.header-phone{padding-left:15px;font-size:12px}.brand strong{font-size:25px}.hero-grid{gap:35px}.hero h1{font-size:41px}.hero-description{font-size:16px}.heating-grid{gap:52px}.technical-grid{gap:45px}.footer-main{gap:45px}.solution-section{gap:55px}.contact-layout{gap:45px}.phone-panel{padding:32px 25px 25px}}
@media(max-width:1080px){:root{--header:78px}.header-inner{position:relative}.menu-toggle{display:flex;order:3}.header-phone{margin-left:auto;order:2;border:0;padding-left:0;font-size:14px}.brand strong{font-size:25px}#main-navigation{display:none;position:absolute;top:var(--header);left:-32px;right:-32px;margin:0;background:white;border-bottom:1px solid var(--line);box-shadow:0 14px 24px #12334712;padding:15px 32px 22px}#main-navigation.is-open{display:block}#main-navigation ul{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}#main-navigation a{min-height:48px;border-radius:3px;padding:8px 15px}#main-navigation a[aria-current]{background:var(--paper)}#main-navigation a[aria-current]::after{display:none}.hero-grid{gap:30px;padding-block:48px 58px}.hero h1{font-size:37px}.hero-image{aspect-ratio:.95}.hero .button{padding-inline:16px;font-size:14px}.hero-description{font-size:15px}.hero-note{font-size:11px}.industry-strip-inner{gap:20px;min-height:82px}.industry-strip-inner>span{display:none}.industry-strip a{font-size:14px}.section{padding-block:75px}.section-heading{gap:30px;margin-bottom:35px}.heating-photo{height:460px}.heating-grid{gap:40px}.heating-story h3{font-size:24px}.technical-grid{gap:35px}.technical-grid h2{font-size:31px}.technical-grid>div>p:not(.section-kicker){font-size:15px}.industry-grid{gap:18px}.industry-card{padding:25px 20px 20px}.industry-card h3{font-size:21px}.industry-card p{font-size:14px}.about-strip-inner{grid-template-columns:1fr 1fr;gap:22px 40px}.about-strip-inner>.section-kicker{grid-column:1/-1;margin:0}.about-strip h2{font-size:28px}.contact-band h2{font-size:27px}.footer-main{grid-template-columns:1fr .8fr 1.1fr;gap:30px}.footer-contact>a:not(.text-link){font-size:23px}.footer-links{grid-template-columns:1fr;gap:7px}.product-grid{gap:55px}.product-image img{height:470px}.product-description h2{font-size:32px}.faq-section{gap:40px}.solution-section{padding-block:60px;gap:40px}.solution-section>figure{height:420px}.case-grid{gap:20px}.case-photo{height:220px}.case-card-copy{padding:22px 20px}.case-card-copy h2{font-size:21px}.case-detail-layout{grid-template-columns:220px 1fr;gap:40px}.case-gallery{gap:15px}.case-gallery-item>a{height:270px}.about-story{gap:45px}.about-story>figure{height:420px}.focus-grid{gap:30px}.about-bottom h2{font-size:24px}.contact-layout{gap:35px}.phone-number{font-size:30px}.phone-panel .button{padding:12px;font-size:13px}.phone-panel .button-row{gap:8px}.contact-layout .section-kicker{margin-bottom:15px}.phone-panel h2{font-size:18px}}
@media(max-width:820px){.hero-grid{gap:25px}.hero h1{font-size:30px}.hero .section-kicker{font-size:12px;gap:9px}.hero .section-kicker::before{width:18px}.hero-description{font-size:14px;margin-top:20px}.hero .button-row{gap:10px}.hero .button{font-size:12px;padding-inline:12px;gap:8px;min-height:45px}.hero .button .icon{width:16px}.hero-image{aspect-ratio:.82}.hero-image figcaption{left:12px;right:12px;bottom:12px;padding:13px}.hero-image figcaption strong{font-size:12px}.hero-image figcaption a{width:32px;height:32px}.hero-note{font-size:10px;gap:7px;margin-top:26px}.section-heading{align-items:start}.section-heading>p{max-width:280px;font-size:14px}.section-kicker{font-size:12px;margin-bottom:15px}.heating-grid{gap:30px;grid-template-columns:.8fr 1fr}.heating-photo{height:420px}.heating-story h3{font-size:23px}.heating-story>p{font-size:14px}.detail-lines>div{font-size:12px;grid-template-columns:65px 1fr;gap:6px;padding-block:11px}.technical-grid{grid-template-columns:1fr;gap:35px}.technical-grid>div{max-width:600px}.technical-grid>div>p:not(.section-kicker){max-width:600px}.flow-figure{max-width:640px;width:100%;margin-inline:auto}.industry-card{padding:23px 17px 18px}.industry-card h3{font-size:20px}.industry-card p{font-size:13px}.card-bottom{font-size:11px}.contact-band-inner{gap:30px}.contact-band h2{font-size:25px}.contact-band p:not(.section-kicker){font-size:13px}.footer-main{grid-template-columns:1fr .8fr;gap:40px}.footer-links{display:none}.footer-contact{justify-self:end}.product-grid{gap:35px}.product-image img{height:450px}.product-description h2{font-size:28px}.product-description>p:not(.section-kicker){font-size:14px}.component-list p{font-size:13px}.steps-grid{gap:25px}.steps-grid h3{font-size:20px}.steps-grid p{font-size:14px}.faq-section{grid-template-columns:1fr;gap:30px}.solution-section{grid-template-columns:.85fr 1fr;gap:30px}.solution-copy .lead{font-size:14px}.solution-info p{font-size:13px}.solution-copy .button-row{gap:10px}.solution-copy .button{font-size:13px;padding-inline:14px}.solution-copy .text-link{font-size:13px}.solution-section>figure{height:430px}.case-grid{grid-template-columns:1fr}.case-card{display:grid;grid-template-columns:.75fr 1fr}.case-photo{height:100%;min-height:300px}.case-card-copy{padding:26px}.case-card-copy h2{font-size:24px}.case-detail-layout{grid-template-columns:1fr;gap:38px}.case-facts{position:static}.case-facts dl{display:grid;grid-template-columns:1fr 1fr;gap:10px 25px}.case-facts>.button{width:auto}.case-gallery-item>a{height:350px}.about-story{gap:30px;grid-template-columns:1fr 1fr}.about-story h2{font-size:28px}.about-story>div>p:not(.section-kicker){font-size:14px}.about-story>figure{height:440px}.focus-grid{gap:25px}.focus-grid h3{font-size:18px}.focus-grid p{font-size:14px}.about-bottom{flex-direction:column;align-items:start}.contact-layout{grid-template-columns:1fr;gap:60px}.phone-panel{padding:36px;max-width:none}.phone-number{font-size:38px}.phone-panel h2{font-size:21px}.phone-panel .button{font-size:14px;padding-inline:20px}.preparation{max-width:620px}}
@media(max-width:600px){:root{--header:72px}.shell{width:calc(100% - 40px)}.header-inner{gap:16px}.brand strong{font-size:23px}.brand>span{font-size:8px;letter-spacing:.12em;margin-top:5px}.header-phone{margin-left:auto}.header-phone span{display:none}.header-phone .icon{width:21px;height:21px}.header-phone{min-height:44px;padding:10px}.menu-toggle{width:40px;height:40px}#main-navigation{left:-20px;right:-20px;padding:13px 20px 20px}#main-navigation ul{grid-template-columns:1fr 1fr;gap:7px}#main-navigation a{font-size:14px}.hero-grid{grid-template-columns:1fr;gap:27px;padding-block:36px 30px}.hero-copy{padding:0}.hero .section-kicker{font-size:12px;margin-bottom:20px}.hero h1{font-size:clamp(29px,8.1vw,41px);line-height:1.4;white-space:normal;letter-spacing:-.04em}.hero-description{font-size:14px;margin:19px 0 24px;line-height:1.9;max-width:400px}.hero .button{font-size:13px;min-height:47px;padding-inline:16px}.hero .button-row{gap:12px}.hero-note{font-size:11px;margin-top:22px}.hero-image{aspect-ratio:1.3;border-radius:5px 5px 22px 5px}.hero-image figcaption{padding:11px 15px}.hero-image figcaption strong{font-size:13px}.hero-image figcaption span{font-size:10px}.image-corner{right:-6px;top:-6px;width:40px;height:40px;border-width:2px}.industry-strip-inner{display:grid;grid-template-columns:1fr 1fr;gap:0;padding-block:12px}.industry-strip a{justify-content:flex-start;padding-left:15px;font-size:13px;min-height:43px;gap:10px}.industry-strip a:nth-child(odd){border-left:1px solid var(--line);padding-left:27px}.industry-strip .icon{width:19px!important}.section{padding-block:58px}.section-heading{display:block;margin-bottom:29px}.section-heading h2{font-size:29px}.section-heading>p{max-width:none;margin-top:20px;font-size:14px}.section-heading>.text-link{margin-top:15px}.heating-grid{grid-template-columns:1fr;gap:30px}.heating-photo{height:340px}.heating-photo img{object-position:50% 16%}.heating-story h3{font-size:26px;line-height:1.5;margin-top:16px}.heating-story>p{font-size:15px}.detail-lines>div{font-size:13px;grid-template-columns:75px 1fr;padding-block:14px}.heating-story>.source-note{font-size:12px}.technical-grid{gap:30px}.technical-grid h2{font-size:29px}.technical-grid>div>p:not(.section-kicker){font-size:14px;margin-top:20px}.flow-figure{padding:6px 4px 17px;border-radius:4px}.flow-figure figcaption{font-size:10px}.industry-grid{grid-template-columns:1fr;gap:15px}.industry-card{padding:23px 23px 19px}.industry-card-top{margin-bottom:18px}.industry-card h3{font-size:23px}.industry-card p{font-size:14px;margin-bottom:20px}.card-bottom{font-size:12px}.industry-card-top>.icon:first-child{width:26px;height:26px}.about-strip{padding-block:44px}.about-strip-inner{grid-template-columns:1fr;gap:15px}.about-strip h2{font-size:27px}.about-strip-inner>div>p{font-size:14px;margin-top:5px}.contact-band{padding-block:43px}.contact-band-inner{display:block}.contact-band h2{font-size:27px;line-height:1.5}.contact-band p:not(.section-kicker){font-size:14px}.contact-band-action{align-items:start;margin-top:27px;gap:19px}.contact-band .button{min-height:47px;font-size:14px}.footer-main{grid-template-columns:1fr;padding-block:40px 33px;gap:32px}.footer-brand p{font-size:13px;margin-top:17px}.footer-contact{justify-self:start}.footer-label{margin-bottom:10px}.footer-contact>a:not(.text-link){font-size:26px}.footer-contact>p{margin-top:8px}.footer-bottom{flex-direction:column;gap:7px;padding-block:18px 25px;font-size:11px}.page-heading{padding-block:42px 40px}.page-heading h1{font-size:33px;line-height:1.4}.page-intro{font-size:14px;margin-top:20px}.product-grid{grid-template-columns:1fr;gap:32px}.product-image{max-width:400px;width:100%;margin-inline:auto;padding-top:15px}.product-image img{height:410px}.product-image figcaption{font-size:11px}.product-description h2{font-size:29px}.product-description>p:not(.section-kicker){font-size:15px}.component-list p{font-size:14px}.steps-grid{grid-template-columns:1fr;gap:28px}.steps-grid article{padding-top:20px}.steps-grid h3{font-size:23px;margin-top:13px}.steps-grid p{font-size:15px}.faq-section{padding-top:5px}.faq-list summary{font-size:15px;min-height:78px;gap:17px}.faq-list details>p{padding-right:8px;font-size:14px}.anchor-nav{margin-top:27px;gap:10px}.anchor-nav a{font-size:13px;padding:8px 15px}.solution-section{grid-template-columns:1fr;gap:28px;padding-block:45px}.solution-section:nth-child(even)>figure{order:0}.solution-section>figure{height:300px}.solution-section:first-child>figure img{object-position:50% 14%}.solution-section figcaption{font-size:11px}.industry-symbol{margin-bottom:17px}.solution-copy h2{font-size:29px}.solution-copy .lead{font-size:15px}.solution-info p{font-size:14px}.solution-copy .button{font-size:14px;padding-inline:17px}.solution-copy .text-link{font-size:14px}.case-card{display:flex}.case-photo{height:245px;min-height:0}.case-photo img{object-position:center 20%}.case-card-copy{padding:25px 22px}.case-card-copy h2{font-size:23px}.case-card-copy>p:not(.case-kind){font-size:14px}.case-editorial-note{padding:20px;gap:15px;align-items:start;font-size:13px}.case-editorial-note .icon{width:20px;height:20px;margin-top:4px}.case-heading{padding-top:24px}.case-heading h1{font-size:30px}.breadcrumb{font-size:12px;margin-bottom:24px}.client-name{font-size:12px;margin-top:18px}.case-detail-layout{padding-top:36px;gap:34px}.case-facts dl{gap:6px 23px}.case-facts dd{font-size:13px}.case-facts dt{font-size:11px}.case-facts>.button{font-size:13px;min-height:45px}.case-gallery{gap:14px;margin-bottom:31px}.case-gallery-item>a{height:235px}.case-gallery figcaption{font-size:11px;margin-top:10px}.zoom-indicator{right:6px;bottom:6px;font-size:10px;padding:4px 6px;gap:4px}.zoom-indicator .icon{width:12px}.article-section{margin:28px 0}.article-section h2{font-size:23px}.article-section p{font-size:15px}.evidence-note{padding:21px 20px;margin-top:30px}.evidence-note p{font-size:12px}.article-navigation{gap:10px}.article-navigation .text-link{font-size:13px;gap:8px}.about-story{grid-template-columns:1fr;gap:35px}.about-story h2{font-size:29px}.about-story>div>p:not(.section-kicker){font-size:15px}.about-story>figure{height:300px}.focus-grid{grid-template-columns:1fr;gap:32px}.focus-grid article:not(:last-child){border-bottom:1px solid var(--line);padding-bottom:28px}.focus-grid .icon{margin-bottom:18px}.focus-grid h3{font-size:22px}.focus-grid p{font-size:15px}.about-bottom{gap:23px}.about-bottom h2{font-size:27px}.contact-layout{gap:46px}.phone-panel{padding:28px 21px 23px}.phone-panel h2{font-size:17px}.phone-number{font-size:31px;letter-spacing:0;margin-top:25px}.phone-panel .button{padding:12px 14px;font-size:12px;min-height:46px;gap:7px}.phone-panel .button .icon{width:16px;height:16px}.phone-panel>p:not(.section-kicker){font-size:12px}.phone-panel .button-row{gap:8px}.phone-panel-bottom{font-size:11px;align-items:start;gap:8px}.phone-panel-bottom .status-dot{margin-top:7px}.preparation h2{font-size:29px}.preparation>p:not(.section-kicker){font-size:14px}.check-item{font-size:14px;padding-block:12px;align-items:start}.check-item input{margin-top:4px}.preparation .button{font-size:14px}.contact-next{flex-wrap:wrap;gap:12px 27px;padding-bottom:45px}.contact-next>span{width:100%;font-size:13px}.contact-next .text-link{font-size:14px}.not-found{padding-block:75px}.not-found h1{font-size:32px}.not-found p{font-size:15px}.lightbox{max-width:98vw;padding-inline:6px}.lightbox img{max-width:92vw;max-height:72vh}.lightbox>p{font-size:12px;max-width:90vw}}
@media(max-width:360px){.shell{width:calc(100% - 32px)}.hero h1{font-size:28px}.hero .button{padding-inline:12px;font-size:12px}.hero .button-row{gap:8px}.phone-number{font-size:28px}.phone-panel{padding-inline:17px}.phone-panel .button-row{flex-direction:column;align-items:stretch}.case-gallery{grid-template-columns:1fr}.case-gallery-item>a{height:320px}.header-inner{gap:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.case-card:hover .case-photo img{transform:none}.text-link:hover .icon{transform:none}}