:root{--navy:#0c3b5d;--teal:#12796e;--frost:#f2f5f7;--ink:#19394f;--muted:#637381;--line:#d8e1e7;--white:#fff;--font:'Segoe UI','Microsoft YaHei','PingFang SC',sans-serif}
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.product-filters{display:flex;gap:48px;border-bottom:1px solid var(--line);margin-bottom:26px;overflow:auto;scrollbar-width:none}.product-filters button{font-size:15px;white-space:nowrap;padding:0 3px 15px;border-bottom:3px solid transparent;color:var(--muted)}.product-filters button[aria-pressed=true]{border-bottom-color:var(--navy);color:var(--navy);font-weight:650}.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:38px 24px;align-items:start}.product-card{min-width:0;animation:appear .35s ease both}.product-image{width:100%;position:relative;aspect-ratio:2.115;background:var(--navy);overflow:hidden;display:block;padding:0}.product-image img{position:absolute;width:100%;max-width:none;height:auto;top:-22.04%;left:0;transition:transform .5s ease}.product-image:hover img{transform:scale(1.035)}.product-card-head{display:flex;align-items:start;justify-content:space-between;gap:10px;margin-top:21px}.product-card h3{font-size:21px;letter-spacing:-.3px}.product-card p{margin-top:6px;color:var(--muted);font-size:14px}.product-card .inline-link{margin-top:14px;font-size:14px}.product-card .range{font-size:11px;color:var(--teal);white-space:nowrap;margin-top:4px}.product-note{font-size:12px;color:var(--muted);margin-top:30px}.products{padding-bottom:35px}
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.about-section{border-top:1px solid var(--line);padding:76px 0 82px}.about-inner{display:grid;grid-template-columns:1fr 1.05fr;gap:70px}.about-inner h2{font-size:42px;line-height:1.5}.about-copy{padding-top:10px}.about-copy h3{font-size:20px;margin-bottom:18px}.about-copy p{font-size:15px;color:var(--muted);line-height:1.95;margin-bottom:16px}.about-copy .inline-link{margin-top:6px}.service-section{background:var(--frost);padding:68px 0 74px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;margin-top:40px}.steps article{display:flex;gap:21px}.steps article+article{border-left:1px solid var(--line);padding-left:30px}.steps h3{font-size:21px;line-height:1.65;margin-bottom:13px}.steps p{color:var(--muted);font-size:14px;line-height:1.85}.contact-section{background:var(--navy);color:#fff;padding:65px 0 52px}.contact-heading{display:flex;align-items:center;justify-content:space-between;gap:30px}.contact-heading h2{font-size:39px}.button-light{border-color:#a4c1d4;background:transparent;color:#fff}.button-light:hover{background:#fff;color:var(--navy)}.contact-info{display:grid;grid-template-columns:1.15fr 1.1fr 1fr;gap:35px;border-top:1px solid #315771;margin-top:40px;padding-top:28px}.contact-info span{font-size:12px;color:#b6c9d5;display:block;margin-bottom:8px}.contact-info a{display:inline-flex;align-items:center;gap:14px;font-size:17px}.contact-info .phone{font-size:27px;font-weight:450;letter-spacing:.8px;line-height:1.4}.contact-info .icon{width:18px;height:18px}.contact-info a:hover{color:#9ce1d7}.contact-info p{color:#b6c9d5;font-size:12px;line-height:1.9;align-self:center}.site-footer{padding-top:39px;padding-bottom:24px}.footer-top{display:flex;align-items:center;gap:35px}.site-footer .brand{gap:12px}.site-footer .brand img{width:43px;height:43px}.site-footer .brand strong{font-size:21px;letter-spacing:3px}.site-footer .brand small{font-size:8px;letter-spacing:4px}.footer-top>p{font-size:13px;color:var(--muted);padding-left:27px;border-left:1px solid var(--line)}.footer-top nav{margin-left:auto;display:flex;gap:25px;font-size:12px}.footer-bottom{display:flex;gap:22px;font-size:11px;color:var(--muted);border-top:1px solid #e8edf1;margin-top:30px;padding-top:20px}.footer-bottom>a{margin-left:auto}.plain-button{padding:0;font-size:inherit;color:inherit}.plain-button:hover,.footer-top a:hover{color:var(--teal)}.mobile-contact{display:none}
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@media(min-width:1600px){.hero-main{min-height:640px}.hero h1{font-size:94px}}
@media(max-width:1200px){.container,.wide-container,.header-inner{width:calc(100% - 80px)}.desktop-nav{gap:25px;margin-left:0}.brand strong{font-size:23px}.brand img{width:48px;height:48px}.brand small{letter-spacing:4.2px}.hero-main{min-height:505px}.hero h1{font-size:5.2vw}.hero-copy>p{font-size:14px}.hero-actions{gap:20px}.hero-media{margin-right:-20px}.hero-media figcaption{font-size:9px}.category-rail strong{font-size:22px}.section{padding-top:80px;padding-bottom:70px}h2{font-size:36px}.product-card h3{font-size:18px}.product-card-head{display:block}.product-card .range{display:block;margin-top:7px}.applications-layout{gap:28px}.steps{gap:25px}.steps article+article{padding-left:25px}.contact-heading h2{font-size:34px}.contact-info{grid-template-columns:1fr 1fr}.contact-info>p{grid-column:1/-1}.footer-top{gap:24px}.footer-top nav{gap:15px}}
@media(max-width:900px){.header-cta{padding:9px 17px;min-height:43px;font-size:13px;gap:12px}.desktop-nav{gap:18px}.desktop-nav a{font-size:13px}.header-inner{gap:14px}.brand{gap:9px}.brand strong{font-size:21px;letter-spacing:3px}.brand small{font-size:8px;letter-spacing:4px}.brand img{width:43px;height:43px}.hero-main{min-height:440px}.hero h1{letter-spacing:-2px}.hero-copy>p{white-space:normal;font-size:13px;max-width:350px}.hero-actions{gap:15px}.hero-actions .button{padding:12px 18px;gap:13px}.text-button{font-size:13px;gap:7px}.category-rail a{padding-left:8px}.category-rail a+a{padding-left:26px}.category-rail strong{font-size:19px}.section-heading{align-items:flex-start}.section-aside{font-size:14px;white-space:nowrap;margin-top:43px}h2{font-size:31px}.product-grid{gap:32px 19px}.product-card h3{font-size:17px}.product-card p{font-size:12px}.applications-layout{gap:22px}.cooling-visual{padding:24px 18px}.diagram-caption{gap:10px;font-size:10px}summary{padding:19px 14px;gap:18px}summary h3{font-size:21px}.details-body{padding:0 20px 23px 56px}.about-inner{gap:40px}.about-inner h2{font-size:36px}.steps{gap:20px}.steps article{gap:14px}.steps article+article{padding-left:20px}.steps h3{font-size:19px}.steps p{font-size:13px}.contact-heading h2{font-size:29px}.footer-top>p{display:none}}
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28px);border-radius:5px}dialog h2{font-size:27px}.dialog-close{right:8px;top:8px}.form-grid{grid-template-columns:1fr;gap:15px}.form-grid label{font-size:12px}input,select,textarea{font-size:16px}.form-note{font-size:11px}.result-actions{gap:12px}.result-actions .button{font-size:13px;padding:11px 15px}.result-actions .text-button{font-size:13px}#product-dialog{padding:48px 23px 25px}.product-detail-layout{grid-template-columns:1fr;gap:25px}.detail-image{max-width:400px;width:100%;margin:auto}.detail-copy h2{font-size:25px}.detail-copy .detail-note{font-size:11px}.detail-english{font-size:9px}}
@media(max-width:380px){.container,.wide-container,.header-inner{width:calc(100% - 36px)}.product-grid{grid-template-columns:1fr}.product-card h3{font-size:20px}.product-card-head{display:flex}.product-filters{gap:19px}.category-rail strong{font-size:12px}.category-rail a{padding-right:3px}.hero-actions{gap:18px}.hero h1{font-size:36px}.hero-copy>p{font-size:12px}h2{font-size:25px}.category-rail a+a{padding-left:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

.product-image[data-product="air-screw"] img{width:97%;left:1.5%;top:-21.4%}.product-image[data-product="air-screw"]:hover img{transform:scale(1.01)}
@media(max-width:700px){.category-rail a{grid-template-columns:1fr}.category-rail .icon{display:none}}

/* Industrial air conditioning and new-energy process cooling. */
.category-rail{grid-template-columns:repeat(4,minmax(0,1fr))}
.category-rail a+a{padding-left:32px}.category-rail strong{font-size:23px}
.desktop-nav{gap:28px;margin-left:0}.desktop-nav a{white-space:nowrap}
.product-card-head{flex-wrap:wrap}.product-filters{scrollbar-width:thin;scrollbar-color:#cbd7de transparent}
.product-image[data-product="industrial-ac"] img{width:54%;left:23%;top:-63%;height:auto}
.product-image[data-product="industrial-ac"]:hover img{transform:scale(1.015)}
.detail-image:has(img[src$="industrial-ac.png"]){display:flex;justify-content:center;background:var(--frost)}
.detail-image img[src$="industrial-ac.png"]{max-height:420px;width:auto;object-fit:contain}
.new-energy-section{padding:78px 0 56px;background:var(--navy);color:#fff;scroll-margin-top:12px}
.new-energy-section .section-label{color:#9cdbd1;font-size:13px}.new-energy-section .section-label::before{background:#9cdbd1}
.energy-heading{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;align-items:end;margin-bottom:44px}
.energy-heading h2{font-size:44px;line-height:1.45}.energy-intro>p{font-size:15px;line-height:1.95;color:#ccdae3;max-width:490px;margin-bottom:23px}
.energy-cards{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.energy-card{padding:28px 32px 30px;background:#fff;color:var(--navy)}
.energy-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;letter-spacing:1.1px;color:var(--teal)}
.energy-tag{border:1px solid #cfe0dc;padding:3px 10px;font-size:11px;letter-spacing:0}
.process-visual{display:block;width:100%;height:130px;margin:22px 0;fill:none;stroke:#8ca7b8;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;background:var(--frost)}
.process-visual .process-teal{stroke:var(--teal)}.energy-card h3{font-size:26px;margin-bottom:16px}
.energy-card>p{color:var(--muted);font-size:14px;line-height:1.9}.energy-card ul{list-style:none;padding:0;margin:20px 0 23px;border-top:1px solid var(--line)}
.energy-card li{font-size:13px;padding:11px 0;border-bottom:1px solid var(--line)}.energy-card li::before{content:'—';color:var(--teal);margin-right:11px}
.energy-card .inline-link{color:var(--teal)}.energy-checklist{margin-top:38px}.energy-checklist>p{font-size:16px;margin-bottom:20px;font-weight:550}
.energy-checklist ol{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:0;margin:0;list-style:none}
.energy-checklist li{font-size:13px;border-top:1px solid #42657d;padding-top:15px;color:#d5e2ea}.energy-checklist span{font-size:12px;color:#9cdbd1;margin-right:15px}
.energy-note{font-size:11px;color:#b5cbd9;line-height:1.9;margin-top:28px;max-width:1050px}
@media(max-width:1200px){.desktop-nav{gap:20px}.desktop-nav a{font-size:15px}.category-rail strong{font-size:20px}.category-rail a+a{padding-left:23px}}
@media(min-width:701px) and (max-width:1000px){.desktop-nav,.header-cta{display:none}.menu-toggle{display:inline-grid}.mobile-menu:not([hidden]){display:flex;flex-direction:column;background:#fff;padding:12px 40px 24px;border-bottom:1px solid var(--line);box-shadow:0 12px 20px #092a4110}.mobile-menu a{padding:13px 0;border-bottom:1px solid #edf1f4}.mobile-menu .button{margin-top:16px}.category-rail strong{font-size:17px}.category-rail a{padding-right:15px}.category-rail a+a{padding-left:17px}}
@media(max-width:900px){.energy-heading{gap:34px}.energy-heading h2{font-size:34px}.energy-card{padding:24px}.energy-card h3{font-size:24px}.energy-checklist ol{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.category-rail{grid-template-columns:1fr 1fr;row-gap:16px;padding:17px 0 22px}.category-rail a{padding:0 18px!important}.category-rail a:nth-child(odd){border-left:0;padding-left:0!important}.category-rail a:nth-child(n+3){border-top:1px solid #cbd7de;padding-top:14px!important}.category-rail strong{font-size:16px}.category-rail span{margin-bottom:6px}.product-filters{gap:24px}.new-energy-section{padding:52px 0 42px}.energy-heading{grid-template-columns:1fr;gap:23px;margin-bottom:30px}.energy-heading h2{font-size:32px}.new-energy-section .section-label{font-size:11px}.energy-intro>p{font-size:14px;margin-bottom:22px}.energy-cards{grid-template-columns:1fr;gap:20px}.energy-card{padding:24px 22px}.energy-card h3{font-size:23px}.process-visual{height:105px;margin:20px 0}.energy-checklist{margin-top:30px}.energy-checklist ol{gap:18px 14px}.energy-checklist li{font-size:12px}.energy-checklist span{display:block;margin:0 0 6px}.energy-note{font-size:10px}.detail-image img[src$="industrial-ac.png"]{max-height:300px}}
/* Language controls and layouts for longer English content. */
.header-actions{display:flex;align-items:center;gap:21px;flex-shrink:0}.language-switch{display:flex;align-items:center;gap:4px;flex-shrink:0;white-space:nowrap}.language-switch button{padding:8px 5px;min-height:44px;font-size:13px;color:var(--muted);font-weight:500}.language-switch button[aria-pressed=true]{color:var(--navy);font-weight:700;text-decoration:underline;text-underline-offset:6px}.language-switch>span{font-size:11px;color:#b5c1cb}.desktop-nav{gap:22px}.header-cta{padding-left:18px;padding-right:18px}
html[lang=en] .brand strong{font-size:23px;letter-spacing:1.3px}html[lang=en] .brand small{letter-spacing:4.5px;font-size:9px}html[lang=en] .desktop-nav a{font-size:14px}html[lang=en] .hero h1{font-size:clamp(40px,4.1vw,64px);line-height:1.18;letter-spacing:-2.8px;white-space:normal}html[lang=en] .hero-copy>p{font-size:17px;white-space:normal;line-height:1.85;max-width:540px}html[lang=en] h2{letter-spacing:-1.1px}html[lang=en] .category-rail strong{font-size:21px;line-height:1.35}html[lang=en] .category-rail a{gap:7px}html[lang=en] .hero-actions{gap:20px;flex-wrap:wrap}html[lang=en] .hero-actions .button{gap:14px}html[lang=en] .section-aside{white-space:normal}html[lang=en] .product-card h3{font-size:20px;line-height:1.4}html[lang=en] .product-card p{line-height:1.65}html[lang=en] summary h3{font-size:22px}html[lang=en] .energy-heading{grid-template-columns:1.1fr 1fr;gap:48px}html[lang=en] .energy-heading h2{font-size:40px;line-height:1.25}html[lang=en] .energy-card h3{font-size:24px}html[lang=en] .energy-card li{line-height:1.65}html[lang=en] .section-label{letter-spacing:.8px}html[lang=en] .about-copy h3{font-size:20px}html[lang=en] .contact-heading h2{font-size:35px}html[lang=en] .contact-info a{overflow-wrap:anywhere}html[lang=en] .footer-top nav{white-space:nowrap}html[lang=en] .footer-bottom{flex-wrap:wrap}html[lang=en] .detail-copy h2{font-size:25px;line-height:1.35}html[lang=en] .detail-english{display:none}html[lang=en] .inline-link{text-align:left}
@media(max-width:1200px){.desktop-nav,.header-cta{display:none}.menu-toggle{display:inline-grid}.mobile-menu:not([hidden]){display:flex;flex-direction:column;background:#fff;padding:12px 40px 24px;border-bottom:1px solid var(--line);box-shadow:0 12px 20px #092a4110}.mobile-menu a{padding:13px 0;border-bottom:1px solid #edf1f4}.mobile-menu .button{margin-top:16px}.header-actions{gap:16px}html[lang=en] .category-rail strong{font-size:18px}html[lang=en] .hero-copy>p{font-size:15px}html[lang=en] .energy-heading h2{font-size:34px}}
@media(max-width:900px){html[lang=en] .hero h1{font-size:38px;letter-spacing:-1.6px}html[lang=en] .category-rail a{grid-template-columns:1fr}html[lang=en] .category-rail .icon{display:none}html[lang=en] .energy-heading{gap:30px}html[lang=en] .product-card h3{font-size:18px}html[lang=en] .contact-heading{align-items:flex-start}html[lang=en] .contact-heading h2{font-size:29px}}
@media(max-width:700px){.header-actions{gap:9px}.header-inner{gap:10px}.language-switch{gap:2px}.language-switch button{font-size:12px;padding:8px 4px}.mobile-menu:not([hidden]){padding:12px 24px 24px}html[lang=en] .brand strong{font-size:18px;letter-spacing:.7px}html[lang=en] .brand small{font-size:7px;letter-spacing:3px}html[lang=en] .hero h1{font-size:clamp(34px,7.2vw,48px);letter-spacing:-1.4px;max-width:510px}html[lang=en] .hero-copy>p{font-size:14px}html[lang=en] .hero-actions{gap:18px}html[lang=en] .hero-actions .text-button{font-size:12px}html[lang=en] .category-rail strong{font-size:16px}html[lang=en] .product-card h3{font-size:16px}html[lang=en] .product-card-head{display:block}html[lang=en] .energy-heading{grid-template-columns:1fr;gap:22px}html[lang=en] .energy-heading h2{font-size:32px}html[lang=en] .energy-card h3{font-size:23px}html[lang=en] .energy-card-top{flex-wrap:wrap}html[lang=en] .energy-tag{font-size:10px}html[lang=en] .new-energy-section .section-label{font-size:10px;letter-spacing:.4px}html[lang=en] .about-inner h2{font-size:31px}html[lang=en] .contact-heading h2{font-size:30px}html[lang=en] .footer-top nav{font-size:11px;gap:14px}html[lang=en] .mobile-contact a,html[lang=en] .mobile-contact button{font-size:13px}html[lang=en] .detail-copy h2{font-size:24px}}
@media(max-width:380px){.brand img{width:32px;height:32px}.brand strong{font-size:18px;letter-spacing:2px}.brand small{font-size:7px;letter-spacing:3px}.brand{gap:8px}.header-actions{gap:6px}.menu-toggle{min-width:34px;margin-right:-5px}html[lang=en] .brand strong{font-size:15px;letter-spacing:.5px}html[lang=en] .brand small{font-size:6px;letter-spacing:2.5px}html[lang=en] .hero h1{font-size:32px;letter-spacing:-1.4px}html[lang=en] .energy-heading h2{font-size:29px}html[lang=en] .category-rail strong{font-size:15px}html[lang=en] .product-card h3{font-size:20px}html[lang=en] .hero-actions{gap:10px}}
html[lang="en"] .hero-media figcaption span{display:none}

.contact-info .whatsapp-contact{font-size:14px;margin-top:12px;gap:8px}

/* WhatsApp-first enquiries with an optional requirements form. */
.contact-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.contact-actions .text-button{color:inherit}.detail-copy .detail-inquiry{margin-top:16px}.footer-whatsapp .icon{width:15px;height:15px}
@media(max-width:700px){.mobile-contact .mobile-inquiry{background:#fff;color:var(--navy)}.mobile-contact .mobile-whatsapp{background:var(--navy);color:#fff}.contact-actions{gap:18px}.footer-top nav{gap:14px;flex-wrap:wrap}}