/* Huayuan industrial system: warm neutral surfaces, engineered geometry, real photography. */
:root{--cream:#f7f7f2;--white:#fff;--ink:#172b28;--muted:#52615c;--accent:#245b45;--green:#183e32;--line:#d6ddd5;--i-lime:#d5e8a1;--i-charcoal:#172a26}
body{background:var(--cream);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3,.side-contact h3{font-family:Arial,Helvetica,sans-serif;font-weight:600;letter-spacing:-.045em;color:var(--ink)}
h1{font-size:clamp(40px,5vw,76px);line-height:1.04}h2{font-size:clamp(32px,3.6vw,52px);line-height:1.1}h3{font-size:23px;line-height:1.25;letter-spacing:-.025em}em{font-style:normal}
.wrap{width:min(1360px,calc(100% - 112px))}.eyebrow{font-size:11px;font-weight:700;letter-spacing:1.6px;margin-bottom:22px}.button{min-height:48px;padding:13px 21px;border-radius:2px;font-size:13px;line-height:1.4;gap:24px;transition:background .18s,border-color .18s,color .18s}.button:hover{background:#173f30}.button.outline{border-color:#a5b4aa}.button.outline:hover{background:#e5eadd}.text-link{font-size:14px;line-height:1.5;gap:18px;width:fit-content}.text-link:hover{text-decoration:underline;text-underline-offset:5px}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #54946a;outline-offset:4px}
.topbar{height:32px;background:var(--i-charcoal);color:#dbe5dd;font-size:10px;letter-spacing:.65px;border:0}.topbar a:hover{color:#fff}header{background:rgba(247,247,242,.98);border-bottom:1px solid var(--line)}.nav{height:84px;gap:24px}.brand{font-size:24px;letter-spacing:1px}.brand small{font-size:7px}.nav nav{gap:22px}.nav nav a{font-size:13px;font-weight:500}.nav nav a[aria-current=page]{text-decoration:underline;text-underline-offset:8px}.nav-actions{gap:15px}.nav-quote{border-radius:2px;min-height:44px;font-size:12px;background:var(--accent)}.language{font-size:12px}.search-link{font-size:26px}.language summary{min-height:44px;display:flex;align-items:center}.language>div{z-index:5}
.i-section{padding-block:100px}.i-section>h1{max-width:1050px;margin-bottom:28px}.i-page-lead{font-size:20px;max-width:850px;line-height:1.65;margin-bottom:55px}.i-soft{background:#eaf0e7}.i-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:46px}.i-heading>div{max-width:760px}.i-heading>div>p:not(.eyebrow){max-width:650px;margin-top:24px;font-size:16px}.i-heading>.button{flex-shrink:0}.i-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.i-index{font-family:monospace;font-size:12px;letter-spacing:1px;font-weight:400;color:#627269}.i-large-copy{font-size:23px;line-height:1.6;color:var(--ink)}
.i-hero{display:grid;grid-template-columns:47% 53%;min-height:650px;background:var(--i-charcoal);color:#fff;overflow:hidden}.i-hero-copy{padding:66px 48px 28px max(56px,calc((100vw - 1360px)/2));display:flex;flex-direction:column;align-items:flex-start}.i-hero .eyebrow{color:#d4e4d9;font-size:10px;letter-spacing:1.7px;display:flex;align-items:center;gap:12px}.i-square{width:7px;height:7px;background:var(--i-lime);display:block;flex-shrink:0}.i-hero h1{color:#fff;font-size:clamp(46px,4.9vw,76px);line-height:1.03;letter-spacing:-.055em;max-width:640px;margin:0 0 28px}.i-hero h1 em{color:var(--i-lime)}.i-hero-lead{font-size:16px;line-height:1.75;max-width:440px;color:#cdd7d0;margin-bottom:30px}.i-hero-lead strong{color:#fff;font-weight:500}.i-hero .button{background:var(--i-lime);color:#152b21;border-color:var(--i-lime)}.i-hero .button:hover{background:#e4f3bc}.i-hero .button.outline{border-color:#73867b;background:transparent;color:#fff}.i-hero .button.outline:hover{background:#284339}.i-hero-bottom{margin-top:auto;padding-top:38px;width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:9px;letter-spacing:1.5px;color:#adbbb2}.i-hero-bottom a{display:grid;place-items:center;width:42px;height:42px;border:1px solid #6b8074;color:white;font-size:24px}.i-hero-visual{margin:0;position:relative;min-width:0;min-height:650px;background:#30453c}.i-hero-visual>img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;object-position:center}.i-hero-visual figcaption{position:absolute;inset:auto 0 0;background:#10281ee6;color:#fff;padding:24px 32px;display:flex;justify-content:space-between;gap:20px;font-size:12px;align-items:center}.i-hero-visual figcaption span:first-child{display:flex;flex-direction:column}.i-hero-visual figcaption b{font-size:30px;letter-spacing:-1px;line-height:1.2;font-weight:500}.i-proof{border-bottom:1px solid var(--line);background:#fff}.i-proof>.wrap{display:grid;grid-template-columns:repeat(4,1fr);padding-block:32px}.i-proof>.wrap>div{display:flex;align-items:center;gap:20px;padding-inline:30px;border-right:1px solid var(--line)}.i-proof>.wrap>div:first-child{padding-left:0}.i-proof>.wrap>div:last-child{padding-right:0;border:0}.i-proof strong{font-size:34px;font-weight:500;letter-spacing:-1.6px;white-space:nowrap}.i-proof strong span{font-size:19px;letter-spacing:-.8px}.i-proof p{font-size:12px;line-height:1.6}.i-intro{display:grid;grid-template-columns:1fr 2fr;gap:64px}.i-intro h2{margin-bottom:30px}.i-intro .i-large-copy{max-width:780px}.i-intro p:not(.eyebrow){margin-bottom:24px}.i-intro p:not(.eyebrow):not(.i-large-copy){max-width:710px}
.i-product-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.i-product{background:#fff;border:1px solid #d4ddd1;display:block;transition:border-color .18s,background .18s;min-width:0}.i-product:hover{border-color:#78997d;background:#fbfdf8;color:var(--ink)}.i-product-top{display:flex;align-items:center;gap:15px;padding:18px 25px;border-bottom:1px solid #e2e7dd;font-size:11px;letter-spacing:.3px;color:var(--muted)}.i-product-top b{margin-left:auto;font-size:20px;font-weight:400;color:var(--accent)}.i-product-content{padding:28px 25px;display:grid;grid-template-columns:1.1fr 1fr;gap:26px;min-height:260px}.i-product h3{font-size:26px;max-width:260px;margin-bottom:15px}.i-product p{font-size:14px;line-height:1.7}.i-product .text-link{margin-top:25px;font-size:12px;color:var(--accent)}.i-product-image{min-width:0;align-self:stretch;background:#e6ece6}.i-product-image img{width:100%;height:100%;max-height:240px;object-fit:cover}.i-product:nth-child(2) .i-product-image img{object-fit:contain;background:#fff}.i-inline-links{display:flex;flex-wrap:wrap;gap:16px 30px;margin-top:28px}.i-inline-links a{font-size:13px;color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.i-industry-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.i-industry{display:flex;flex-direction:column;align-items:flex-start;position:relative;padding:27px 24px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .18s;min-height:215px}.i-industry:hover{background:#eaf0e7;color:var(--ink)}.i-industry h3{font-size:21px;margin:24px 0 12px}.i-industry p{font-size:14px;line-height:1.6;max-width:220px}.i-industry>span:last-child{position:absolute;right:22px;top:20px;font-size:20px;color:var(--accent)}
.i-fuel{background:var(--i-charcoal);padding-block:90px;color:#fff}.i-fuel-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px}.i-fuel .eyebrow{color:#afc8ba}.i-fuel h2{color:#fff}.i-fuel p:not(.eyebrow){color:#c8d4cb;margin:25px 0 30px;max-width:540px}.i-fuel .button.outline{color:#e8efd9;border-color:#8f9f87}.i-fuel .button.outline:hover{background:#294739}.i-fuel-list{border-top:1px solid #53675c}.i-fuel-list>div{display:grid;grid-template-columns:26px 1fr;column-gap:20px;border-bottom:1px solid #53675c;padding:20px 0}.i-fuel-list span{font:11px monospace;color:#b1c0b6;padding-top:5px}.i-fuel-list strong{font-size:23px;font-weight:500;letter-spacing:-.6px}.i-fuel-list small{grid-column:2;font-size:12px;color:#aebfb3;margin-top:4px}
.i-project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.i-project-image{display:block;position:relative;height:310px;overflow:hidden;background:#e3eae0}.i-project-image img{height:100%;width:100%;object-fit:cover;transition:transform .3s}.i-project-image:hover img{transform:scale(1.025)}.i-output{position:absolute;bottom:0;left:0;background:#eff4dd;padding:12px 20px;font-size:36px;line-height:1.1;font-weight:500;letter-spacing:-1.5px;color:#1c3827}.i-output small{font-size:15px;margin-left:6px;letter-spacing:0}.i-project-copy{padding:25px 0;border-bottom:1px solid var(--line)}.i-project-copy .eyebrow{font-size:10px;margin-bottom:14px}.i-project h3{font-size:25px;margin-bottom:15px}.i-project-copy>p:not(.eyebrow){font-size:13px;min-height:44px}.i-project .text-link{margin-top:22px}.i-region-note{margin-top:32px;font-size:13px;color:var(--muted);padding-left:17px;border-left:2px solid var(--accent)}
.i-engineering{display:grid;grid-template-columns:1fr 1fr;gap:85px;align-items:center}.i-engineering figure{margin:0;background:#dde5da}.i-engineering figure>img{height:580px;width:100%;object-fit:cover}.i-engineering figcaption,.i-service-feature figcaption,.i-about-panorama figcaption{padding:14px 0;font-size:11px;color:var(--muted);background:var(--cream)}.i-engineering figcaption{background:#eaf0e7}.i-engineering p:not(.eyebrow){margin:26px 0}.i-engineering-links{margin:30px 0}.i-engineering-links a{display:block;border-top:1px solid #c8d3c5;padding:16px 0;font-size:14px}.i-engineering-links span{display:block;font:10px monospace;color:var(--muted);margin-bottom:7px;letter-spacing:1px}.i-visit{background:#d9e7b9;padding-block:65px}.i-visit>.wrap{display:flex;align-items:center;justify-content:space-between;gap:70px}.i-visit h2{font-size:clamp(30px,3.1vw,44px)}.i-visit p:not(.eyebrow){max-width:650px;margin-top:22px;color:#3b5140;font-size:15px}.i-visit .button{flex-shrink:0}.i-visit .eyebrow{font-size:10px;margin-bottom:17px}
.i-services{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px}.i-services .i-heading{display:block}.i-services .i-heading>.button{margin-top:30px}.i-service-rows{border-top:1px solid var(--line)}.i-service-rows>div{display:grid;grid-template-columns:30px 1fr;gap:12px 18px;padding:28px 0;border-bottom:1px solid var(--line)}.i-service-rows h3{font-size:22px}.i-service-rows p{grid-column:2;font-size:15px;max-width:720px}.i-service-rows .i-index{padding-top:5px}.i-company-showcase{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.i-company-showcase p:not(.eyebrow){margin:25px 0 30px;max-width:490px}.i-company-showcase .hero-media{margin:0}.i-consultation{background:#eaf0e7}.inquiry-layout{gap:90px;grid-template-columns:.85fr 1.15fr}.inquiry-layout>div>p:not(.eyebrow){font-size:16px;line-height:1.7}.inquiry-layout h2{font-size:clamp(32px,3.5vw,50px)}.inquiry-form{background:#fff;padding:32px;border:1px solid #d4ddcf}.inquiry-form label{font-size:13px;font-weight:500;margin-bottom:18px;letter-spacing:0}.inquiry-form input,.inquiry-form select,.inquiry-form textarea{font-size:16px;background:#fafbf7;border:1px solid #bac7b8;padding:11px 12px;margin-top:7px;min-height:46px;border-radius:2px}.inquiry-form select{padding-right:30px;max-width:100%}.form-row{gap:18px}.inquiry-form .inquiry-consent{display:flex;align-items:flex-start;gap:10px;font-size:12px;line-height:1.6}.inquiry-consent input{width:18px;height:18px;min-height:18px;margin-top:3px;flex-shrink:0;accent-color:var(--accent)}.inquiry-form .form-note{font-size:12px;line-height:1.6;margin:0 0 20px;max-width:none}.inquiry-form .form-status{font-size:14px}.inquiry-form .form-actions{margin-bottom:16px}.inquiry-details{margin:8px 0 24px;border-top:1px solid var(--line);padding-top:14px}.inquiry-details summary{font-size:13px;padding-block:8px;cursor:pointer}.inquiry-details[open] summary{margin-bottom:16px}.inquiry-honeypot{position:absolute!important;width:1px!important;height:1px!important;overflow:hidden!important;clip-path:inset(50%)}.selection-context{margin-bottom:22px;font-size:13px}.contact-direct{font-size:16px}.i-contact-options{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:35px}
.i-service-feature{display:grid;grid-template-columns:1fr 1fr;gap:80px;margin:75px 0;align-items:center}.i-service-feature figure{margin:0}.i-service-feature figure img{width:100%;height:420px;object-fit:cover}.i-service-feature h2{margin-bottom:28px}.i-service-feature p{margin-bottom:24px}.i-service-feature h3{margin-bottom:15px}.i-note-panel{padding:40px;background:#eaf0e7;border-top:3px solid var(--accent)}.i-note-panel ul{padding-left:20px;color:var(--muted);margin:22px 0 0}.i-note-panel li{margin:12px 0}.i-about-panorama{margin:45px 0 60px}.i-about-panorama img{width:100%;height:500px;object-fit:cover}.i-table-scroll{overflow-x:auto;max-width:100%;margin-bottom:30px}.i-spec-table{border-collapse:collapse;width:100%;min-width:660px;font-size:14px;line-height:1.6;text-align:left}.i-spec-table caption{text-align:left;margin-bottom:15px;font-size:13px;color:var(--muted)}.i-spec-table th,.i-spec-table td{padding:20px;border-bottom:1px solid #c7d2c2;vertical-align:top}.i-spec-table thead{background:var(--green);color:#fff}.i-spec-table tbody th{width:21%;font-weight:600}.i-spec-table td{width:39%;color:var(--muted)}
/* Existing archives and multilingual content retain their features and receive the same type system. */
.section{padding-block:80px}.page-heading h1,.case-intro h1{font-family:Arial,Helvetica,sans-serif;font-weight:600;letter-spacing:-.04em}.card-copy h3{font-size:23px}.card-copy>p:not(.eyebrow),.family-copy>p:not(.eyebrow){font-size:15px}.family-copy .eyebrow,.card-copy .eyebrow,.side-contact .eyebrow{font-size:11px}.family-copy h3{font-size:25px}.family-card,.content-card,.case-photo,.article-cta,.selection-guide{border-radius:2px}.family-copy{padding:25px}.side-contact p:not(.eyebrow),.related-links a,.case-facts dt{font-size:13px}.side-contact .button{font-size:12px}.breadcrumb{font-size:12px;white-space:normal;overflow-wrap:anywhere;line-height:1.6}.rich-content{font-size:16px;line-height:1.85}.article-summary{font-size:18px;line-height:1.75}.scope-links{font-size:15px}.case-facts dd{font-size:16px}.company-updates-home{padding-block:80px}.floating-contact{background:var(--green);font-size:12px;padding:12px 18px;border-radius:2px;box-shadow:0 3px 18px #16392b22}footer{background:var(--i-charcoal);padding-top:65px}footer h3{color:#fff}.footer-grid{grid-template-columns:1.1fr 1fr 1fr 1.2fr;gap:45px}.footer-grid a:not(.brand),footer p{font-size:13px;line-height:1.7}.footer-grid h3{font-size:12px;font-family:Arial,sans-serif;letter-spacing:1px}.footer-base{font-size:11px;padding-bottom:70px}.footer-grid .brand{color:#fff}.footer-grid .muted{font-size:12px}.footer-brand small{font-size:8px}.hero-media{border-radius:2px}
@media(min-width:1600px){.i-hero{grid-template-columns:1fr 1fr}.i-hero-copy{padding-right:65px}.i-hero-visual{max-height:780px}}
@media(max-width:1200px){.wrap{width:calc(100% - 64px)}.nav{gap:18px}.nav nav{gap:16px}.nav nav a{font-size:12px}.nav-quote{padding:10px 12px}.brand{font-size:21px}.i-hero-copy{padding:50px 32px 28px}.i-hero h1{font-size:55px}.i-hero,.i-hero-visual{min-height:620px}.i-proof>.wrap>div{padding-inline:18px;gap:12px}.i-proof strong{font-size:28px}.i-proof p{font-size:11px}.i-product-content{gap:18px;padding:24px 20px}.i-product h3{font-size:23px}.i-fuel-layout,.i-engineering,.i-services,.i-company-showcase,.inquiry-layout,.i-service-feature{gap:48px}.i-project-image{height:270px}.i-section{padding-block:80px}.i-hero .i-actions{gap:12px}.i-hero .button{font-size:12px;gap:15px}.i-hero-bottom{font-size:8px}.i-hero-visual figcaption{padding:24px}.i-proof .wrap{padding-block:26px}}
@media(max-width:1050px){.nav-quote{display:none}.i-hero{grid-template-columns:49% 51%}.i-hero h1{font-size:48px}.i-hero .eyebrow{font-size:9px;letter-spacing:1.2px}.i-proof>.wrap>div{display:block}.i-proof p{margin-top:8px}.i-industry-grid{grid-template-columns:repeat(2,1fr)}.i-product-content{grid-template-columns:1.25fr 1fr}.i-product h3{font-size:22px}.i-project-grid{gap:18px}.i-project h3{font-size:21px}.i-project-image{height:240px}.i-intro{grid-template-columns:.7fr 2fr;gap:35px}.i-large-copy{font-size:21px}.i-visit>.wrap{gap:35px}.i-services{grid-template-columns:1fr 1.2fr}.i-table-scroll{overscroll-behavior-inline:contain}}
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