/* Sitrax architectural refinement: shared across every bilingual route. */
:root{--ink:#143638;--muted:#516869;--teal:#1d615c;--line:#d9e1db;--wash:#edf1eb;--paper:#f8f9f5;--deep:#103b3c;--soft-orange:#f7eee5;--nav-height:92px;--ease:cubic-bezier(.16,1,.3,1)}
body{background:var(--paper)}
html{scroll-padding-top:calc(var(--nav-height) + 24px)}
h1,h2,h3{letter-spacing:-.04em}
h2{font-size:clamp(36px,4.25vw,60px);line-height:1.08}
p{line-height:1.75}
.header{height:var(--nav-height);background:var(--paper);border-color:var(--line)}
.brand img{width:148px}
.header nav{gap:26px;font-size:13px}
.header nav .nav-contact{display:none;font-weight:700}
.header nav a{padding-block:14px}
.header nav a:after{bottom:7px;height:1px}
.header nav a[aria-current=page]:after{transform:scaleX(1)}
.nav-actions{gap:22px}
.language{min-height:44px;min-width:44px;justify-content:center}
.button{padding:18px 24px;min-height:56px;border-radius:2px;transition:background .25s,color .25s,transform .25s var(--ease)}
.button.compact{min-height:46px;padding:12px 20px}
.button svg,.text-link svg{transition:transform .35s var(--ease)}
.button:active{transform:translateY(1px)}
.text-link{padding-block:10px;border-bottom-color:#9cad9f;min-height:44px}

.section{padding-block:120px}
.section-heading{gap:80px;align-items:flex-start;margin-bottom:54px}
.section-heading>p{font-size:16px;max-width:420px;padding-top:6px}
.section-heading>p>strong{display:block;margin-top:14px;color:var(--ink)}
.solution-tabs{gap:16px;margin-bottom:48px}
.solution-tabs button,.solution-tabs button+button{padding:20px 10px 20px 0;font-size:14px;border-bottom-width:2px}
.solution-tabs button[aria-selected=true]{color:var(--ink)}
.solution-tabs button:hover{background:transparent}
.solution-tabs button svg{height:30px;width:30px;padding:6px;border:1px solid var(--line);border-radius:50%}
.solution-tabs button[aria-selected=true] svg{background:var(--teal);color:white;border-color:var(--teal)}
.solution-panel{gap:80px;grid-template-columns:1.15fr 1fr}
.solution-image{height:430px}
.solution-image figcaption{padding:10px 16px;font-size:12px}
.solution-copy h3{font-size:clamp(30px,3vw,42px);line-height:1.17}
.solution-copy p{font-size:16px;margin-top:25px}
.solution-copy ul{margin:28px 0}
.solution-copy li{font-size:14px;padding-block:10px;border-bottom:1px solid var(--line)}
.solution-copy li:before{top:21px;width:4px;height:4px;border-radius:50%}
.brand-section{padding-block:112px;background:var(--wash)}
.sineng-feature{grid-template-columns:1.12fr 1fr}
.sineng-product{padding:45px 45px 24px}
.sineng-product>img{height:370px}
.sineng-product>div{padding-top:22px;font-size:12px}
.sineng-copy{background:var(--soft-orange);border-top:3px solid var(--orange);padding:52px 48px;color:var(--ink)}
.sineng-copy>img{width:166px;margin-bottom:35px}
.sineng-copy h3{font-size:clamp(34px,3.4vw,48px);line-height:1.1}
.sineng-copy p{font-size:16px;color:var(--ink);margin:25px 0 30px}
.sineng-copy .button.light{background:var(--ink);color:white}
.sineng-copy .button.light:hover{background:var(--teal)}
.catl-feature{grid-template-columns:150px 1fr auto;margin-top:0;padding:48px 0 0;border-top:0;gap:40px}
.catl-feature h3{font-size:30px;line-height:1.18}
.catl-feature p{font-size:15px;max-width:65ch}
.catl-mark{font-size:48px;align-self:start;line-height:1.1;padding-top:6px}
.catl-home-actions{gap:14px}
.about{gap:110px}
.about .large-copy{font-size:22px;line-height:1.65;margin-top:34px}
.about p{font-size:16px}
.principles{padding-top:5px}
details{padding:27px 0}
summary{font-size:22px;font-weight:600;gap:18px}
summary svg{width:30px;height:30px;padding:5px;border:1px solid var(--line);border-radius:50%;transition:transform .25s var(--ease)}
details p{font-size:15px!important;line-height:1.8}
.news-section{padding-block:112px;background:#eef0e9}
.news-feature{grid-template-columns:1.05fr 1fr;gap:80px}
.news-feature>img{height:395px}
.news-feature h3{font-size:clamp(28px,2.65vw,38px);line-height:1.25}
.news-feature p{font-size:16px}
.news-meta{font-size:13px}
.contact-section{background:var(--deep);padding-block:112px}
.contact-grid{grid-template-columns:1fr 1.05fr;gap:90px;align-items:start}
.contact-grid h2{font-size:clamp(40px,4.3vw,62px)}
.contact-grid>div>p{font-size:17px;color:#d7e4dc;max-width:36ch;line-height:1.8}
.contact-links{gap:18px;margin-top:46px}
.contact-links a{font-size:19px;min-height:36px}
.contact-form{padding:36px;background:var(--paper);color:var(--ink);border-radius:3px}
.contact-form label{font-size:13px;font-weight:600;gap:9px;margin-bottom:22px}
.contact-form input,.contact-form select,.contact-form textarea{background:white;color:var(--ink);border-color:#b7c5bc;padding:13px 14px;font-size:15px;min-height:50px;caret-color:var(--teal)}
.contact-form input::placeholder,.contact-form textarea::placeholder{font-size:13px;color:#5b6f6b}
.contact-form select option{background:white;color:var(--ink)}
.contact-form input:focus-visible,.contact-form select:focus-visible,.contact-form textarea:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.contact-form select[name=requestType]{font-weight:700;background:var(--wash);border-color:#9fb8a9}
.contact-form .button.light{background:var(--teal);color:white}
.contact-form .button.light:hover{background:var(--deep)}
.contact-form .form-note{color:var(--muted);font-size:12px}
.contact-form .form-result{margin-top:22px;font-size:14px;border:0}
.contact-form .form-grid{gap:0 16px}
.support-fields legend{font-size:14px}
footer{background:var(--paper)}
.footer-top{padding-block:76px;grid-template-columns:1.4fr .8fr 1fr;gap:60px}
.footer-logo img{width:195px;height:75px}
.footer-top p{font-size:14px;max-width:25ch;margin-top:18px}
.footer-top>div:not(:first-child){gap:9px;font-size:14px}
.footer-top>div>a:not(.footer-logo){padding-block:4px}
.footer-bottom{font-size:12px;padding-block:25px}
.back-link{font-size:14px;min-height:32px;margin-bottom:30px}
.sineng-intro,.catl-intro{padding-block:40px 85px}
.sineng-intro-grid,.catl-intro-grid{gap:70px}
.sineng-intro h1,.catl-intro h1{font-size:clamp(44px,5.3vw,76px);line-height:1.08}
.sineng-intro h1{font-size:clamp(44px,4.5vw,64px)}
.sineng-intro p,.catl-intro p{font-size:17px;line-height:1.8}
.product-stage{background:white;border-bottom:3px solid var(--orange);padding:50px 24px;min-height:510px}
.product-stage img{height:365px}
.catl-product-figure{background:white;border-bottom:1px solid #ccdbe6;padding:20px 10px}
.catl-product-figure img{height:370px}
.catl-service-strip>.shell{padding-block:26px;font-size:15px}
.bess-table{background:white}
.bess-table th,.bess-table td{padding:21px 24px}
.bess-models{margin-top:85px}
.bess-model{padding-block:48px;grid-template-columns:1fr 1.35fr;gap:85px}
.bess-model h3{font-size:40px}
.bess-photo{height:285px;margin-block:25px 16px}
.bess-model-detail{padding-top:5px}
.bess-capacity{font-size:31px;font-weight:600}
.bess-model-detail>p+p{font-size:16px;line-height:1.8}
.bess-model dl{margin-block:30px;gap:38px;flex-wrap:wrap}
.bess-model dt{font-size:13px}
.bess-model dd{font-size:18px;margin-top:7px}
.model-inquiry{display:block;margin-top:24px}
.model-inquiry .text-link{font-size:14px}
.catl-service{background:#173f68}
.catl-service-grid{gap:80px}
.catl-service h2{font-size:clamp(36px,4vw,56px)}
.catl-service-grid>div>p:not(.service-by){font-size:17px;line-height:1.8}
.catalog-tabs{position:sticky;top:var(--nav-height);z-index:10;background:var(--paper);padding-top:8px;gap:20px;margin-bottom:44px}
.catalog-tabs button{font-size:14px;min-height:64px}
.sineng-catalog [role=tabpanel]{scroll-margin-top:calc(var(--nav-height) + 108px)}
.catalog-group-title{font-size:32px;margin-bottom:24px}
.catalog-model{padding-block:52px;gap:75px;grid-template-columns:1fr 1.2fr;align-items:center}
.catalog-model figure{padding:28px;background:white}
.catalog-model img{height:310px}
.catalog-model figcaption{font-size:12px}
.catalog-model h3{font-size:clamp(28px,2.7vw,38px);line-height:1.2;margin-bottom:12px}
.catalog-model .catalog-type{font-size:14px;color:var(--muted);margin-bottom:22px}
.catalog-model>div>p:not(.catalog-type){font-size:16px;color:var(--muted)}
.catalog-specs{font-size:14px;margin-block:28px;gap:0 24px}
.catalog-specs li{padding-block:14px}
.catalog-actions{gap:28px}
.brochure-link{padding-block:8px;min-height:48px}
.brochure-link span{font-size:12px;margin-top:5px}
.availability{font-size:13px;line-height:1.85;margin-top:26px}
.blog-index h1{font-size:clamp(46px,5.5vw,78px)}
.article{padding-top:45px;max-width:1120px}
.article h1{font-size:clamp(40px,4.7vw,68px);line-height:1.13}
.article-body{font-size:17px;line-height:1.85;margin-top:70px}
.article-body h2{font-size:34px;margin-top:52px}
.article-cover{height:510px}
@media(max-width:1150px){
.header nav{gap:18px;font-size:12px}.brand img{width:130px}.nav-actions{gap:10px}
.section-heading{gap:45px}.solution-panel,.news-feature{gap:45px}.solution-image{height:390px}
.sineng-copy{padding:38px 32px}.sineng-product{padding:32px}.sineng-product>img{height:330px}
.catl-feature{grid-template-columns:110px 1fr;gap:28px}.catl-home-actions{grid-column:2}.catl-mark{font-size:40px}
.contact-grid{gap:45px}.contact-form{padding:28px}.sineng-intro-grid,.catl-intro-grid{gap:40px}.catalog-model{gap:40px}.catalog-model figure{padding:18px}
}
@media(max-width:900px){
:root{--nav-height:80px}.header nav{gap:12px}.header nav .nav-contact{display:block;color:var(--teal)}.section,.brand-section,.news-section,.contact-section{padding-block:85px}

.section-heading h2{font-size:40px}.section-heading>p{font-size:15px}.section-heading{gap:35px}
.solution-copy h3{font-size:31px}.solution-copy p{font-size:15px}.solution-panel{gap:35px}
.contact-grid{grid-template-columns:1fr 1.1fr;gap:32px}.contact-form{padding:24px}.contact-grid h2{font-size:42px}.contact-links a{font-size:16px}.contact-grid>div>p{font-size:15px}
.footer-top{gap:30px}.sineng-intro h1,.catl-intro h1{font-size:48px}.sineng-intro p,.catl-intro p{font-size:16px}.product-stage{padding:25px 16px;min-height:380px}.product-stage img{height:280px}
.catl-product-figure img{height:300px}.bess-model{gap:42px}.bess-model h3{font-size:34px}.bess-capacity{font-size:27px}.bess-model dl{gap:24px}.catalog-model{gap:30px}.catalog-model img{height:260px}.catalog-tabs button{font-size:13px}.catalog-specs{font-size:13px;gap:0 18px}
}
@media(max-width:680px){
:root{--nav-height:76px;--space:24px}html{scroll-padding-top:98px}
.header nav{top:var(--nav-height);font-size:20px;background:var(--paper);padding:24px}.header nav a{padding-block:13px}
.nav-shell{gap:12px}.brand img{width:132px}.menu-toggle{width:44px}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(4.5px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-4.5px) rotate(-45deg)}.menu-toggle span{transition:transform .2s}

.section,.brand-section,.news-section,.contact-section{padding-block:68px}.section-heading{gap:25px;margin-bottom:32px}.section-heading h2,h2{font-size:36px;line-height:1.12}.section-heading>p{font-size:15px;max-width:100%;padding-top:0}.section-heading>p>strong{margin-top:12px}
.solution-tabs{gap:0 18px;margin-bottom:30px}.solution-tabs button,.solution-tabs button+button{font-size:12px;gap:6px;min-height:67px;padding:13px 0}.solution-tabs button svg{width:24px;height:24px;padding:4px}.solution-panel{grid-template-columns:1fr;gap:30px}.solution-image{height:275px}.solution-copy h3{font-size:32px}.solution-copy p{font-size:15px;margin-top:20px}.solution-copy li{font-size:13px}
.sineng-feature{grid-template-columns:1fr}.sineng-product{padding:28px 22px 22px}.sineng-product>img{height:260px}.sineng-product>div{font-size:11px;gap:12px}.sineng-copy{padding:32px 26px 36px}.sineng-copy>img{margin-bottom:26px;width:156px}.sineng-copy h3{font-size:36px}.sineng-copy p{font-size:15px;line-height:1.8}.catl-feature{grid-template-columns:1fr;gap:25px;padding-top:40px}.catl-mark{font-size:42px}.catl-feature h3{font-size:28px}.catl-feature p{font-size:15px}.catl-home-actions{grid-column:auto;gap:7px}
.about{gap:40px}.about .large-copy{font-size:20px;margin-top:26px}.about p{font-size:15px}.principles{padding:0}summary{font-size:20px}details{padding:23px 0}details p{font-size:14px!important}
.news-feature{grid-template-columns:1fr;gap:30px}.news-feature>img{height:265px}.news-feature h3{font-size:28px}.news-feature p{font-size:15px}.news-meta{font-size:12px}
.contact-grid{grid-template-columns:1fr;gap:38px}.contact-grid h2{font-size:42px}.contact-grid>div>p{font-size:16px}.contact-links{margin-top:28px;gap:9px}.contact-links a{font-size:17px}.contact-location{margin-top:24px}.contact-form{padding:25px 20px}.contact-form label{font-size:12px}.contact-form input,.contact-form select,.contact-form textarea{font-size:16px}.contact-form .form-grid{grid-template-columns:1fr}.contact-form .button{font-size:14px}
.footer-top{grid-template-columns:1fr 1fr;padding-block:50px;gap:26px}.footer-top>div:first-child{grid-column:1/-1}.footer-top>div:not(:first-child){font-size:12px}.footer-logo img{width:180px;height:69px}.footer-top p{font-size:13px;max-width:none;margin-top:10px}.footer-bottom{font-size:10px;gap:15px}
.sineng-intro,.catl-intro{padding-block:28px 55px}.back-link{margin-bottom:25px}.sineng-intro-grid,.catl-intro-grid{grid-template-columns:1fr;gap:36px}.sineng-intro h1,.catl-intro h1{font-size:46px}.sineng-intro p,.catl-intro p{font-size:16px}.sineng-page-logo{width:154px;margin-bottom:25px}.product-stage{min-height:330px;padding:26px 20px}.product-stage img{height:245px}.catl-product-figure img{height:235px}.catl-service-strip>.shell{font-size:14px}
.bess-table{font-size:13px}.bess-table th,.bess-table td{padding:17px 12px}.bess-models{margin-top:50px}.bess-model{grid-template-columns:1fr;gap:25px;padding-block:34px}.bess-model h3{font-size:34px}.bess-photo{height:255px}.bess-capacity{font-size:28px}.bess-model-detail>p+p{font-size:15px}.bess-model dl{margin-block:25px;gap:28px}.bess-model dt{font-size:12px}.bess-model dd{font-size:16px}.model-inquiry{margin-top:17px}.catl-service h2{font-size:36px}.catl-service-grid{gap:30px}.catl-service-grid>div>p:not(.service-by){font-size:16px}
.catalog-tabs{grid-template-columns:1fr 1fr;gap:0 14px;padding-top:0;margin-bottom:30px}.catalog-tabs button,.catalog-tabs button+button{font-size:12px;min-height:56px;padding:12px 0}.sineng-catalog [role=tabpanel]{scroll-margin-top:210px}.catalog-group-title{font-size:28px}.catalog-model{grid-template-columns:1fr;gap:26px;padding-block:34px}.catalog-model figure{padding:24px}.catalog-model img{height:235px}.catalog-model h3{font-size:29px}.catalog-model .catalog-type{font-size:13px;margin-bottom:18px}.catalog-model>div>p:not(.catalog-type){font-size:15px}.catalog-specs{font-size:13px;margin-block:24px}.catalog-actions{gap:22px}.brochure-link{font-size:13px}.brochure-link span{font-size:11px}.availability{font-size:12px}
.blog-index h1{font-size:46px}.article{padding-block:30px 65px}.article h1{font-size:38px}.article-cover{height:260px}.article-body{font-size:16px;margin-top:40px}.article-body h2{font-size:28px;margin-top:40px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}html{scroll-behavior:auto}}

/* Equipment-led refinement: factual content, ordinary controls, restrained type. */
:root{--paper:#fff;--wash:#f5f6f4;--soft-orange:#f5f6f4}
h1,h2,h3{letter-spacing:-.025em}
h2,.section-heading h2{font-size:clamp(30px,3.2vw,44px);line-height:1.2}
.button{min-height:48px;padding:14px 22px;border-radius:2px}
.button svg,.text-link svg,.catalog-tabs svg{display:none}
.text-link{text-decoration:underline;text-underline-offset:5px;border-bottom:0;gap:0}

.intro-copy h1{font-size:clamp(36px,4.1vw,58px);line-height:1.16;font-weight:600;max-width:16ch}
.intro-copy>p{font-size:17px;max-width:48ch;margin-top:28px;color:var(--muted)}
.intro-actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap;margin-top:32px}










.section,.brand-section,.news-section,.contact-section{padding-block:80px}
.section-heading{gap:55px;margin-bottom:40px}
.section-heading h2{max-width:20ch}
.solution-tabs button{font-size:14px;padding-block:16px;min-height:60px}
.solution-tabs button svg{display:none}
.solution-copy h3{font-size:30px;line-height:1.25}
.solution-copy li{border-bottom:0;padding-block:5px;padding-left:0}
.solution-copy li:before{display:none}
.solution-image.contain{background:#fff}
.solution-image.contain img{object-fit:contain;padding:25px}
.brand-section{background:var(--wash)}
.sineng-copy{background:transparent;border:0;padding:40px}
.sineng-copy h3{font-size:34px;line-height:1.2}
.sineng-copy>img{margin-bottom:25px}
.sineng-product{padding:30px;background:white}
.sineng-product>div{border:0}
.catl-feature{padding-top:48px;margin-top:35px;border-top:1px solid var(--line)}
.catl-feature h3{font-size:27px}
summary{font-size:20px}
summary svg{padding:3px;border:0;border-radius:0}
.about .large-copy{font-size:20px}
.news-feature h3{font-size:30px;line-height:1.3}
.news-section{background:var(--paper);border-top:1px solid var(--line)}
.contact-section{background:var(--wash);color:var(--ink);border-top:1px solid var(--line)}
.contact-grid h2{font-size:40px;line-height:1.2;color:var(--ink)}
.contact-grid>div>p{color:var(--muted);font-size:16px}
.contact-links a{color:var(--ink);font-size:18px;text-decoration:underline;text-underline-offset:5px}
.contact-location{color:var(--muted)}
.contact-form{padding:0;background:transparent;border-radius:0}
.contact-form .form-note{max-width:65ch}
.sineng-intro h1,.catl-intro h1{font-size:clamp(38px,4vw,56px);line-height:1.15;letter-spacing:-.025em}
.product-stage,.catl-product-figure{border:0;background:white;min-height:0}
.product-stage{padding:25px}
.catalog-group-title{font-size:28px}
.catalog-model h3{font-size:30px}
.catalog-model figure{padding:10px;background:white}
.article h1{font-size:clamp(34px,4vw,54px);line-height:1.2}
.footer-top{padding-block:55px}
@media(max-width:1050px){.intro-copy h1{font-size:44px}.intro-copy>p{font-size:16px}}
@media(max-width:800px){.intro-copy h1{max-width:22ch}.intro-copy>p{max-width:60ch}}
@media(max-width:680px){.intro-copy h1{font-size:36px;max-width:18ch}.intro-copy>p{font-size:16px;margin-top:22px}.intro-actions{gap:22px;margin-top:26px}.intro-actions .button{font-size:13px}.section,.brand-section,.news-section,.contact-section{padding-block:55px}.section-heading{gap:20px;margin-bottom:30px}.section-heading h2,h2{font-size:30px;max-width:100%}.solution-copy h3,.sineng-copy h3,.news-feature h3{font-size:27px}.sineng-copy{padding:28px 0 0}.sineng-product{padding:20px}.catl-feature{margin-top:30px;padding-top:30px}.catl-feature h3{font-size:26px}.contact-grid h2{font-size:32px}.contact-links a{font-size:16px}.sineng-intro h1,.catl-intro h1{font-size:36px}.catalog-model h3{font-size:27px}.article h1{font-size:34px}.footer-top{padding-block:40px}}

/* User-approved landscape restores color while retaining the direct introduction. */
.landscape-intro{position:relative;isolation:isolate;display:flex;align-items:center;min-height:650px;padding:76px 0 92px;background:#103b3c;color:#fff}
.landscape-image{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover;object-position:center 58%}
.landscape-intro:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(8,31,32,.9) 0%,rgba(8,31,32,.72) 42%,rgba(8,31,32,.12) 100%)}
.landscape-content .intro-copy{max-width:680px}
.landscape-content .intro-copy h1{max-width:22ch;color:#fff}
.landscape-content .intro-copy>p{max-width:57ch;color:#f0f5f2}
.landscape-content .button{background:#fff;border-color:#fff;color:#143638}
.landscape-content .button:hover{background:#dcefe6;border-color:#dcefe6}
.landscape-content .text-link{color:#fff}
.landscape-content a:focus-visible{outline:3px solid #fff;outline-offset:6px}
.landscape-caption{position:absolute;bottom:24px;left:0;right:0;color:#fff;font-size:11px;text-shadow:0 1px 4px #103b3c}
@media(max-width:800px){.landscape-intro{min-height:640px;padding:60px 0 82px}.landscape-image{object-position:65% center}.landscape-intro:before{background:linear-gradient(90deg,rgba(8,31,32,.88),rgba(8,31,32,.45))}}
@media(max-width:680px){.landscape-intro{min-height:660px;padding:48px 0 82px}.landscape-content .intro-copy h1{max-width:18ch}.landscape-content .intro-copy>p{font-size:16px}.landscape-caption{font-size:10px;bottom:20px}}