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@media(max-width:380px){.hero h1{font-size:43px}.hero-actions{gap:15px}.hero-actions .text-link{font-size:11px}.services-grid{grid-template-columns:1fr}.service-card{padding:24px}.service-card>p{min-height:0;font-size:14px}.service-card h4{font-size:21px}.service-card>a{font-size:12px}.process-grid{grid-template-columns:1fr}.wechat-contact{gap:12px}.qr-button{width:115px}.wechat-contact strong{font-size:19px}.brand{width:200px}.header{gap:8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{header,.topline,footer,dialog,.hero-media,.enquiry-card,.hero-actions{display:none}body{font-size:11px}.hero,.section,.about-layout,.contact-grid,.rebate-layout{padding-top:20px;padding-bottom:20px}.hero,.contact-grid{display:block}.services-grid{grid-template-columns:repeat(3,1fr)}.rebate-section{background:white;color:var(--ink)}.calculator-preview{display:none}.rebate-layout{display:block}}

.service-group+.service-group{margin-top:55px}.service-group-heading{border-top:2px solid var(--ink);padding-top:23px;margin-bottom:25px;display:flex;justify-content:space-between;align-items:baseline;gap:35px}.service-group-heading h3{font-size:27px;margin:0;flex-shrink:0}.service-group-heading p{font-size:15px;color:var(--muted);margin:0;max-width:680px}.service-card h4{line-height:1.4;letter-spacing:-.3px;font-size:22px}@media(max-width:960px){.service-card h4{font-size:19px}}@media(max-width:740px){.service-group-heading{display:block}.service-group-heading h3{font-size:24px;margin-bottom:9px}.service-group-heading p{font-size:14px}.service-card h4{font-size:18px}}@media(max-width:380px){.service-card h4{font-size:21px}}

/* Real service photographs, displayed edge-to-edge. */
.service-photo-note{font-size:12px;color:var(--muted);margin:-9px 0 21px}.photo-card{isolation:isolate;overflow:hidden;display:flex;flex-direction:column;min-height:440px;padding:28px;color:white;background:#173747;border:0;box-shadow:0 8px 25px #17374712}.service-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .45s ease}.photo-card:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#07192312 0%,#07192330 25%,#071923d9 58%,#071923f5 100%);z-index:-1}.photo-card:hover .service-photo{transform:scale(1.035)}.photo-card:hover{box-shadow:0 12px 30px #17374730}.photo-card .service-number{color:white;background:#1231408c;backdrop-filter:blur(5px);border:1px solid #ffffff40;padding:3px 9px;border-radius:30px;font-size:12px}.photo-card h4{margin-top:auto;padding-top:175px;margin-bottom:12px;font-size:24px;line-height:1.35;text-shadow:0 1px 3px #0006}.photo-card>p{color:#eef4f6;line-height:1.8;font-size:15px;min-height:81px;margin:0}.photo-card>a{color:white;border-color:#ffffff55;margin-top:20px;font-size:14px;padding-top:16px}.photo-card>a:after{content:"";position:absolute;inset:0;z-index:1}.photo-card>a:focus-visible{outline-offset:5px}.photo-card:focus-within{outline:3px solid #6caaa0;outline-offset:4px}
@media(max-width:960px){.photo-card{padding:24px;min-height:425px}.photo-card h4{font-size:22px;padding-top:150px}.photo-card>p{font-size:14px;min-height:100px}}
@media(max-width:740px){.photo-card{min-height:410px;padding:22px}.photo-card h4{font-size:21px;padding-top:145px}.photo-card>p{font-size:14px}.photo-card>a{font-size:13px}.service-photo-note{font-size:11px}}
@media(max-width:600px){.services-grid{grid-template-columns:1fr}.photo-card{min-height:420px}.photo-card h4{font-size:25px;padding-top:190px}.photo-card>p{min-height:55px;font-size:15px}.photo-card>a{font-size:14px}}
/* A single panoramic image connects the headline and the home. */
.hero.wrap{max-width:none;position:relative;isolation:isolate;display:flex;align-items:center;min-height:660px;padding:72px max(30px,calc((100vw - 1260px)/2)) 90px;overflow:hidden;color:#fff;background:#123241}
.hero-media{position:absolute;inset:0;z-index:-3;width:100%;height:100%;border:0;border-radius:0;box-shadow:none;background:#173747}
.hero-media>img{object-fit:cover;object-position:center 54%;width:100%;height:100%}
.hero:before{content:"";position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,#0a2333f2 0%,#123648df 28%,#13384787 52%,#16344015 76%),linear-gradient(105deg,#184d713d 10%,transparent 55%,#d8783133 100%)}
.hero:after{content:"";position:absolute;bottom:0;left:0;right:0;height:55px;background:linear-gradient(0deg,#ffffff,transparent);z-index:-1;pointer-events:none}
.hero-copy{position:relative;max-width:680px;width:57%}.hero .eyebrow{color:#c1dde4;font-size:17px;letter-spacing:1.3px;line-height:1.7;margin-bottom:23px}.hero h1{font-size:70px;line-height:1.2;letter-spacing:-1.4px;font-weight:720;text-shadow:0 2px 20px #0d233333}.hero h1 span{color:#ffb092}.hero .intro{color:#e0ebee;max-width:560px;font-size:17px;line-height:1.85;margin-bottom:30px}.hero .text-link{color:#fff}.hero .hero-bottom{margin-top:34px}.hero-bottom p span{color:#c3d4dc}.hero .round-icon{color:#b5d8d7;border-color:#ffffff50}.hero-media figcaption{bottom:55px;right:28px;color:#fff;background:#102b3e7a}.hero .photo-label{left:auto;right:30px;top:30px;color:var(--ink)}
.header-actions select{max-width:132px;font-size:13px;min-width:85px}.header{gap:24px}.city-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.city-list li{border:1px solid var(--line);border-radius:7px;padding:14px 12px;font-size:14px;display:flex;align-items:center;gap:8px}.city-list svg{width:17px;height:17px;color:var(--green)}.service-area{border-bottom:1px solid var(--line)}
html[lang=ja] .hero h1,html[lang=ko] .hero h1{font-size:53px;line-height:1.4}html[lang=hi] .hero h1{font-size:54px;line-height:1.45;letter-spacing:0}html[lang=es] .hero h1{font-size:58px;line-height:1.25}html[lang=hi] body{line-height:1.85}html[lang=hi] .photo-card h4{line-height:1.55}
@media(max-width:1200px){.hero.wrap{padding-left:30px;padding-right:30px}.hero h1{font-size:60px}.hero-copy{width:60%}.header nav{gap:16px}.brand{width:225px}}
@media(max-width:960px){.hero.wrap{min-height:630px}.hero h1{font-size:55px}.hero-copy{width:70%;max-width:620px}.hero:before{background:linear-gradient(90deg,#0a2333ee,#123648bd 55%,#13384748)}.city-list{grid-template-columns:repeat(3,1fr)}.header-actions select{max-width:112px}html[lang=es] .hero h1,html[lang=hi] .hero h1,html[lang=ja] .hero h1,html[lang=ko] .hero h1{font-size:46px}}
@media(max-width:740px){.hero.wrap{padding:55px 22px 75px;min-height:610px}.hero-copy{width:100%;max-width:590px}.hero h1{font-size:54px;line-height:1.25}.hero .eyebrow{font-size:15px;letter-spacing:.5px}.hero .intro{font-size:15px;max-width:500px}.hero:before{background:linear-gradient(90deg,#0a2333e8,#123648b3),linear-gradient(0deg,#0d293c80,transparent)}.hero-media>img{object-position:66% center}.hero .photo-label{display:none}.hero-media figcaption{bottom:37px;right:18px;font-size:8px}.hero-bottom{max-width:90%}.header-actions select{max-width:92px;min-width:75px;font-size:12px}.header{gap:8px}.brand{max-width:54%}.city-list{grid-template-columns:repeat(2,1fr);gap:9px}.city-list li{font-size:13px;padding:12px 9px}.footer-main>div:last-child{flex-wrap:wrap}html[lang=es] .hero h1,html[lang=hi] .hero h1,html[lang=ja] .hero h1,html[lang=ko] .hero h1{font-size:40px}.hero .hero-bottom{margin-top:29px}}
@media(max-width:380px){.hero h1{font-size:46px}.hero.wrap{padding-top:45px}.hero .eyebrow{font-size:13px}html[lang=es] .hero h1,html[lang=hi] .hero h1,html[lang=ja] .hero h1,html[lang=ko] .hero h1{font-size:35px}}
@media(min-width:741px) and (max-width:1100px){.header nav{position:absolute;display:none;top:100%;left:0;right:0;padding:22px 30px;background:white;box-shadow:0 12px 24px #17374718}.header nav.open{display:flex;flex-wrap:wrap;gap:24px}.menu-button{display:grid;place-items:center;order:3;width:35px;height:35px;background:none;border:0;color:var(--ink)}.header-actions{margin-left:auto}}
.product-card .service-photo{object-fit:contain;object-position:center 16%;padding:15px 25px 170px;background:linear-gradient(150deg,#edf2f4,#c9d6db 65%,#263f4d)}
.product-card:before{background:linear-gradient(180deg,transparent 0%,transparent 30%,#0c28387a 48%,#0a2535eb 62%,#071e2cfb 100%)}
.hero:after{height:80px}

.product-card .service-photo{background:#fff}.city-list li small{display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-top:1px}
/* Softer, locally served typography for every supported script. */
body{font-family:'Nunito Sans','Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-weight:400;line-height:1.8;font-synthesis:none;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
html[lang=zh-Hant] body{font-family:'Nunito Sans','Noto Sans TC',sans-serif}
html[lang=ja] body{font-family:'Nunito Sans','Noto Sans JP',sans-serif}
html[lang=ko] body{font-family:'Nunito Sans','Noto Sans KR',sans-serif}
html[lang=hi] body{font-family:'Nunito Sans','Noto Sans Devanagari',sans-serif}
.hero h1{font-weight:500;letter-spacing:.015em;line-height:1.3;text-shadow:0 2px 16px #0d233326}
h2,.service-group-heading h3{font-weight:500;letter-spacing:.015em;line-height:1.4}
h3,.service-card h4,.photo-card h4{font-weight:500;letter-spacing:.01em;line-height:1.5}
.hero .eyebrow{font-weight:400;letter-spacing:.05em}.eyebrow{font-weight:500}
.header nav,.phone-button,.button,.text-link,.service-card>a,.preview-link{font-weight:600}
.credentials>div,.enquiry-card label{font-weight:500}.hero .intro,.section-heading>p{line-height:1.95}.photo-card>p{line-height:1.85}
.hero h1 span{font-weight:500}.hero-bottom b{font-weight:600}

/* Keep installed equipment and vent connections visible. */
.service-photo[src$="/furnace.jpg"]{object-position:50% 35%}

/* Alpine sunrise: dedicated portrait artwork avoids a cropped mobile panorama. */
.hero-media>picture{display:block;width:100%;height:100%}.hero-media picture img{width:100%;height:100%;object-fit:cover;object-position:60% center}
.hero:before{background:linear-gradient(90deg,#092637d9 0%,#16354bae 30%,#16354b35 62%,transparent 84%)}
html[lang=zh-Hans] .hero h1,html[lang=zh-Hant] .hero h1{font-family:'FELI Brush','Noto Serif SC',serif;font-size:clamp(60px,5.6vw,88px);font-weight:400;letter-spacing:.045em;line-height:1.22;text-shadow:0 3px 24px #102f4a55}
html[lang=zh-Hans] .hero h1 span,html[lang=zh-Hant] .hero h1 span{font-weight:400;color:#ffdbb1}
@media(max-width:740px){
.hero.wrap{min-height:780px;padding:280px 24px 70px;align-items:flex-end;background:#21465f}
.hero-media picture img{object-fit:cover;object-position:50% top}
.hero:before{background:linear-gradient(180deg,transparent 10%,#102e4320 30%,#12334b80 45%,#102e43d6 70%,#102e43ee 100%)}
.hero-copy{max-width:100%}.hero .eyebrow{font-size:13px;margin-bottom:16px;color:#e0edf3}.hero .intro{max-width:510px;font-size:15px;line-height:1.9;margin-top:20px;margin-bottom:24px}
html[lang=zh-Hans] .hero h1,html[lang=zh-Hant] .hero h1{font-size:clamp(42px,11.8vw,70px);letter-spacing:.025em;line-height:1.22}
.hero .hero-bottom{margin-top:26px}.hero-media figcaption{bottom:26px;right:18px}.hero-actions{gap:20px}
}
@media(max-width:380px){.hero.wrap{padding-left:20px;padding-right:20px;padding-top:250px;min-height:760px}.hero-actions .button{padding:14px 18px}}

/* Song typography and upright Roman letterforms. */
body,html[lang=zh-Hans] body{font-family:'FELI Roman','FELI Song SC','Noto Serif SC',Georgia,serif;font-weight:400;font-style:normal}
html[lang=zh-Hant] body{font-family:'FELI Roman','FELI Song TC',serif}
html[lang=ja] body{font-family:'FELI Roman','Noto Sans JP',serif}html[lang=ko] body{font-family:'FELI Roman','Noto Sans KR',serif}html[lang=hi] body{font-family:'FELI Roman','Noto Sans Devanagari',serif}
.hero h1:not(.splash-headline),.hero h1:not(.splash-headline) span{font-family:inherit;font-style:normal;font-weight:400;letter-spacing:-.02em}.hero h1:not(.splash-headline){font-size:clamp(46px,4.5vw,64px)}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.hero h1.splash-headline{font-size:0;line-height:0;margin:0 0 22px;width:100%;max-width:565px}.splash-headline img{display:block;width:100%;height:auto;filter:brightness(0) invert(1);object-fit:contain}
.channel-section{background:#f2f5f4;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.channel-section>.wrap{padding:0}.channel-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:28px}.channel-card{padding:32px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 10px 28px #18374708}.channel-top{display:flex;align-items:center;gap:16px}.platform-mark{width:54px;height:54px;border-radius:15px;background:#173747;color:#fff;font:35px/1 Georgia,serif;display:grid;place-content:center;flex-shrink:0}.xhs-mark{background:#e42e42;font:14px/1.2 'FELI Song SC',serif}.platform-kicker{font-size:12px;color:#657880;letter-spacing:.08em}.channel-top h3{font-size:24px;margin:2px 0}.channel-link{display:flex;align-items:center;gap:8px;margin-left:auto;font-size:12px}.channel-link svg{width:18px}.tiktok-feed{margin-top:28px;min-height:240px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,#132f41,#37556b);overflow:hidden}.video-load-button{background:transparent;border:0;color:#fff;display:grid;justify-items:center;gap:18px;padding:30px;font-size:16px}.play-symbol{width:58px;height:58px;border:1px solid #ffffff80;border-radius:50%;display:grid;place-content:center;padding-left:5px;font-size:18px}.channel-hint{font-size:12px;color:var(--muted);line-height:1.8}.channel-card>.text-link{font-size:14px}.xhs-card{display:flex;flex-direction:column;align-items:flex-start}.xhs-identity{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;flex:1;padding:28px 0;gap:16px}.identity-caption{font-size:14px;color:var(--muted)}.xhs-identity strong{font-size:clamp(21px,2.5vw,33px);font-weight:400}.identity-line{height:1px;width:70px;background:#c6d7d6}.channel-copy-status{font-size:12px;min-height:20px;color:var(--green);margin-bottom:0}.header nav{gap:18px}
@media(max-width:960px){.channel-grid{grid-template-columns:1fr}.channel-card{padding:25px}.channel-link{font-size:11px}.channel-top h3{font-size:21px}.hero h1.splash-headline{max-width:510px}}
@media(max-width:740px){.hero h1.splash-headline{max-width:365px;margin-bottom:18px}.hero h1:not(.splash-headline){font-size:40px}.channel-section>.wrap{padding:0}.channel-card{padding:22px}.channel-top{flex-wrap:wrap}.channel-link{margin-left:0;width:100%;padding-left:70px}.channel-grid{gap:20px}.tiktok-feed{min-height:210px}.xhs-identity strong{font-size:26px}}
.channel-section>.wrap{padding-left:30px;padding-right:30px}@media(max-width:740px){.channel-section>.wrap{padding-left:22px;padding-right:22px}}

.xhs-profile-link{margin-bottom:18px}.xhs-copy{border:0;background:none;padding:0;color:var(--ink);font-size:14px;text-align:left}

#rebates .rebate-layout{display:block}#rebates .rebate-layout>div:first-child{max-width:850px;margin-bottom:34px}.rebate-embed{background:#fff;border-radius:18px;padding:10px;box-shadow:0 18px 45px #07192333}.rebate-embed iframe{display:block;width:100%;height:880px;border:0;border-radius:12px;background:#fff}.rebate-fullscreen{margin:18px;color:var(--ink);border:1px solid var(--line)}@media(max-width:740px){.rebate-embed{padding:5px;margin-left:-12px;margin-right:-12px;border-radius:12px}.rebate-embed iframe{height:830px;border-radius:8px}.rebate-fullscreen{margin:15px;font-size:13px}}

.hero-actions{flex-wrap:wrap}.hero-rebate-link{white-space:nowrap}

/* Warm residential comfort: full-bleed living room, with a dedicated mobile composition. */
.hero.wrap{background:#443525;min-height:720px;padding-top:54px;padding-bottom:70px}
.hero-media{background:#443525}.hero-media picture img{object-position:center center}
.hero:before{background:linear-gradient(90deg,rgba(24,18,12,.74) 0%,rgba(30,24,18,.58) 28%,rgba(36,28,20,.28) 48%,rgba(32,25,18,.02) 75%)}
.hero:after{height:0}
.hero .eyebrow{color:#f2e6d7}.hero .intro{color:#fff3e7;text-shadow:0 1px 5px #21150d80}
.hero-bottom p span{color:#f1e6d7}.hero .round-icon{color:#ecdfcd}.hero .photo-label{display:none}
.hero .text-link{border:1px solid #ffffffa3;border-radius:6px;padding:13px 18px;background:#3b2d2326}
.hero .hero-rebate-link{background:transparent}.hero .splash-headline{border:0;text-decoration:none}.splash-headline:before,.splash-headline:after{content:none}
@media(max-width:740px){
.hero.wrap{min-height:860px;padding:270px 24px 48px;align-items:flex-end;background:#443525}
.hero-media picture img{object-position:center top}
.hero:before{background:linear-gradient(180deg,rgba(30,23,16,.02) 0%,rgba(35,25,17,.06) 22%,rgba(31,23,16,.25) 38%,rgba(25,19,14,.78) 64%,rgba(25,19,14,.94) 100%)}
.hero .eyebrow{font-size:13px}.hero .intro{font-size:15px;line-height:1.9}
.hero-actions{gap:14px}.hero .text-link{font-size:12px;padding:11px 14px}.hero .hero-bottom{margin-top:26px}
}