:root{--nav-h:80px;--maxw:1280px;--ink:#152d38;--navy:#173f4f;--navy-dark:#102f3b;--red:#bd2b35;--red-dark:#9e202b;--gray-700:#4f626a;--gray-500:#697c83;--gray-300:#d8e0e2;--gray-200:#e6ecee;--gray-100:#f1f5f5}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);background:#fff;font-family:'Montserrat','Noto Sans SC','Microsoft YaHei',sans-serif;font-size:15px;line-height:1.85}h1,h2,h3,h4,p,figure{margin:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,select,textarea{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #4b93ad;outline-offset:5px}img{display:block;max-width:100%;height:auto}ul{list-style:none;padding:0;margin:0}sup{font-size:.6em;vertical-align:super;line-height:0}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}.container{max-width:var(--maxw);padding:0 40px;margin:0 auto}.section{padding:96px 0}.section-head,.mfg-head{margin-bottom:40px}.kicker{color:var(--red);font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;margin-bottom:16px}.section-title{font-size:clamp(25px,2.7vw,38px);font-weight:600;line-height:1.45;letter-spacing:-.025em}.section-sub,.mfg-intro{color:var(--gray-700);margin-top:20px;max-width:850px;font-size:15px;line-height:1.95}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 23px;border:1px solid transparent;font-weight:600;font-size:13px;transition:background .2s,color .2s;white-space:normal;text-align:center}.btn-primary{background:var(--red);color:#fff}.btn-primary:hover{background:var(--red-dark)}.btn-ghost{border-color:#9eafb5;color:var(--ink);background:transparent}.btn-ghost:hover{background:#e7edef}.btn-navy{background:var(--navy);color:#fff}
.nav{position:fixed;inset:0 0 auto;z-index:50;height:var(--nav-h);background:#fff;border-bottom:1px solid var(--gray-200)}.nav.scrolled{box-shadow:0 3px 16px #14333e10}.nav-inner{max-width:1440px;height:100%;margin:auto;display:flex;align-items:center;gap:20px;padding:0 36px}.nav-logo{margin-right:auto;flex:none}.nav-logo img{width:150px;height:auto}.nav-links{display:flex;gap:3px;align-items:center}.nav-links a{font-size:12px;font-weight:500;min-height:44px;display:flex;align-items:center;padding:0 10px;white-space:nowrap}.nav-links a:hover{color:var(--red)}.main-site-link{flex:none;border:1px solid var(--gray-300);padding:8px 13px;font-size:12px;color:var(--navy)}.main-site-link:hover{border-color:var(--navy);background:var(--gray-100)}.main-site-short{display:none}.nav-toggle{display:none;width:44px;height:44px;border:0;background:none;padding:10px;flex-direction:column;justify-content:center;gap:5px;flex:none}.nav-toggle span{display:block;height:2px;width:24px;background:var(--ink);transition:transform .2s,opacity .2s}.nav-toggle.active span:first-child{transform:translateY(7px) rotate(45deg)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:last-child{transform:translateY(-7px) rotate(-45deg)}
.hero{margin-top:var(--nav-h);background:#edf2f2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.92fr);min-height:690px}.hero-content{padding:70px 54px 58px max(40px,calc((100vw - 1200px)/2));min-width:0;align-self:center}.hero-tag{font-size:10px;font-weight:700;letter-spacing:.13em;color:var(--red);margin-bottom:26px}.hero-title{font-weight:600;font-size:clamp(35px,3.7vw,54px);line-height:1.32;letter-spacing:-.035em;margin-bottom:22px}.hero-sub{font-size:16px;font-weight:600;margin-bottom:13px}.hero-desc{font-size:14px;color:var(--gray-700);max-width:500px}.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;border-top:1px solid #cbd6da;margin:32px 0 30px;padding-top:25px}.hero-stats .num{font-size:23px;font-weight:600;line-height:1.3}.hero-stats .lab{font-size:10px;color:var(--gray-700);line-height:1.65;margin-top:8px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.hero-actions .btn{padding:11px 15px;font-size:12px}.hero-actions .btn:last-child{border:0;padding-left:0;min-height:38px;width:100%;justify-content:flex-start;text-decoration:underline;text-underline-offset:5px;color:var(--gray-700)}.hero-visual{position:relative;min-height:100%;overflow:hidden;background:#c5d6df}.hero-bg{position:absolute;width:100%;height:100%;object-fit:cover;object-position:55% center}.hero-visual figcaption{position:absolute;bottom:25px;left:26px;right:26px;color:#fff;font-size:11px;letter-spacing:.12em;padding:10px 15px;background:#153947dd}
.tabs{display:inline-flex;background:var(--gray-100);padding:5px;margin:0 0 40px;gap:5px}.tab{border:0;background:transparent;padding:12px 24px;color:var(--gray-700);font-size:13px;min-height:44px}.tab.active{background:var(--navy);color:#fff}.tab-panel{display:none}.tab-panel.active{display:block}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.about-text p{color:var(--gray-700);font-size:14px;line-height:1.95;margin-bottom:18px}.about-figure{grid-column:1;grid-row:1}.about-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}.about-figure figcaption{font-size:11px;color:var(--gray-500);margin-top:13px}.about-text{grid-column:2}.timeline,.tl-more{max-width:1000px}.tl-item{display:grid;grid-template-columns:150px 1fr;gap:26px;padding:22px 0;border-bottom:1px solid var(--gray-200)}.tl-year{font-size:17px;font-weight:600;color:var(--navy)}.tl-body p{font-size:14px;color:var(--gray-700)}.tl-more{display:none}.tl-more.open{display:block}.tl-toggle{border:0;border-bottom:1px solid var(--navy);background:none;padding:12px 0;color:var(--navy);font-size:13px;margin-top:18px}.sign{margin-left:8px}.mfg-block{margin-top:70px;border-top:1px solid var(--gray-300);padding-top:45px}.mfg-block .section-title{font-size:25px}.mfg-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.mfg-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover}
#compressor-range{background:var(--gray-100)}.pcards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-bottom:65px}.pcard{background:#fff;border:1px solid #dde5e7;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}.pcard:hover{transform:translateY(-4px);box-shadow:0 15px 30px #14333e0a}.pcard-media{padding:24px 24px 0;background:#fff;aspect-ratio:4/3}.pcard-media img{width:100%;height:100%;object-fit:contain}.pcard-body{padding:24px 28px 20px;display:flex;flex-direction:column;flex:1}.pcard-kicker{color:var(--red);font-size:11px;letter-spacing:.1em;margin-bottom:12px}.pcard h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:16px}.pcard-body>p:not(.pcard-kicker){color:var(--gray-700);font-size:13px;flex:1}.pcard-actions{margin-top:24px;padding-top:13px;border-top:1px solid var(--gray-200)}.pcard-link{font-size:12px;font-weight:600;display:inline-flex;min-height:40px;align-items:center;color:var(--navy)}.product-detail{background:#fff;padding:48px;margin-top:24px;border-left:3px solid var(--navy)}.pd-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:start}.product-detail--alt .pd-media{grid-column:2;grid-row:1}.product-detail--alt .pd-info{grid-column:1;grid-row:1}.pd-media{position:sticky;top:105px}.pd-media img{width:100%;aspect-ratio:4/3;object-fit:contain;background:white}.pd-media figcaption{font-size:11px;color:var(--gray-500);margin-top:15px}.pd-info h3{font-size:25px;font-weight:600;line-height:1.5;margin-bottom:18px}.pd-info>p{font-size:13px;color:var(--gray-700);margin-bottom:22px}.pd-info .pd-models{font-size:12px;background:var(--gray-100);padding:12px;color:var(--navy)}.pd-features-title{font-size:13px;margin-bottom:12px}.pd-features li{font-size:13px;color:var(--gray-700);padding:9px 0;border-top:1px solid var(--gray-200)}
.solutions{background:var(--navy-dark);color:#fff}.solutions .section-title{color:#fff}.solutions .kicker{color:#a9c9d1}.solutions .mfg-intro{color:#c4d3d8}.sol-cards{display:grid;gap:24px}.sol-card{display:grid;grid-template-columns:330px 1fr;gap:40px;padding:26px;border:1px solid #ffffff30}.sol-card-media{background:#fff}.sol-card-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:contain}.sol-card-body{align-self:center}.sol-card-body h3{font-size:23px;font-weight:500;margin-bottom:14px}.sol-card-body p{font-size:14px;color:#c4d3d8;line-height:1.9}.industry-gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:180px 180px;gap:15px;margin-bottom:32px}.industry-gallery img{width:100%;height:100%;object-fit:cover}.industry-gallery img:first-child{grid-column:span 2;grid-row:span 2}.tags{display:flex;flex-wrap:wrap;gap:10px}.tag{font-size:12px;padding:7px 14px;background:var(--gray-100);color:var(--gray-700)}.services{background:var(--gray-100)}.svc-banner{max-width:900px;margin:0 auto 40px}.svc-banner img{width:100%}.svc-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d3dfe2;border:1px solid #d3dfe2}.svc-list li{background:var(--gray-100);padding:28px;display:flex;flex-direction:column;gap:12px}.svc-num{font-size:11px;letter-spacing:.1em;color:var(--red)}.svc-body h4{font-size:16px;font-weight:500;margin-bottom:10px}.svc-body p{font-size:13px;color:var(--gray-700)}.svc-list li:last-child{grid-column:span 3;flex-direction:row;align-items:center}.svc-list li:last-child .svc-body{display:flex;align-items:center;gap:25px}.svc-list li:last-child h4{margin:0}.cta{padding:55px 0;background:#dde8eb}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}.cta h2{font-size:27px;font-weight:600;margin-bottom:12px}.cta p{font-size:13px;color:var(--gray-700);max-width:570px}.cta-actions{display:flex;gap:8px;flex-wrap:wrap;max-width:380px}.cta-actions .btn:last-child{font-size:12px;border:0;padding-left:0;text-decoration:underline;text-underline-offset:5px;min-height:30px}
.contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--gray-300);gap:0 32px}.contact-item{padding:26px 0;border-bottom:1px solid var(--gray-300)}.ci-label{display:block;font-size:11px;letter-spacing:.1em;color:var(--gray-500);margin-bottom:12px}.contact-item p{font-size:16px;overflow-wrap:anywhere}.contact-item a:hover,.contact-note a:hover{color:var(--red)}.contact-note{font-size:13px;margin-top:24px;color:var(--gray-700)}.consultation{margin-top:65px;display:grid;grid-template-columns:.7fr 1.3fr;background:var(--gray-100);border:1px solid var(--gray-200)}.consultation-intro{background:var(--navy);color:#fff;padding:44px 35px}.consultation-intro .kicker{color:#b6ced5;font-size:10px}.consultation-intro h3{font-size:29px;font-weight:500;line-height:1.5;margin-bottom:22px}.consultation-intro p{font-size:13px;color:#d4e2e7}.consultation-intro>a{display:block;font-size:25px;margin-top:50px;margin-bottom:10px}.consultation-form{padding:40px;min-width:0}.form-fields{display:grid;grid-template-columns:1fr 1fr;gap:19px 20px}.form-fields label{display:flex;flex-direction:column;gap:8px;font-size:12px;min-width:0}.form-fields input,.form-fields textarea,.form-fields select{width:100%;border:1px solid #cbd8dc;background:#fff;color:var(--ink);border-radius:0;padding:11px 12px;font-size:13px;min-height:46px}.form-fields input:focus,.form-fields textarea:focus,.form-fields select:focus{outline:2px solid #6c9cac;outline-offset:1px}.form-fields textarea{resize:vertical}.form-wide{grid-column:1/-1}.form-consent{display:flex;gap:10px;margin-top:22px;font-size:11px;line-height:1.8;color:var(--gray-700)}.form-consent input{width:17px;height:17px;margin:2px 0 0;flex:none;accent-color:var(--navy)}.form-status{font-size:12px;color:var(--red);margin:14px 0;line-height:1.8}.form-status:empty{display:none}.form-status.is-success{color:#1a6752}.form-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:22px}.form-actions>a{font-size:11px;text-decoration:underline;text-underline-offset:3px}
.faq{background:var(--gray-100)}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--gray-200);padding:0 28px}.faq-q{font-size:15px;font-weight:500;cursor:pointer;padding:22px 0;list-style:revert}.faq-q::marker{color:var(--red)}.faq-a{font-size:14px;color:var(--gray-700);line-height:1.95;padding:0 0 25px}.faq-a a{color:var(--red);text-decoration:underline}.footer{background:#102d39;color:#c1d0d6;padding:55px 0 0}.footer-grid{display:grid;grid-template-columns:1.5fr .8fr 1fr 1.25fr;gap:35px;padding-bottom:40px}.footer-logo img{width:155px;margin-bottom:22px}.footer-brand p{font-size:12px;line-height:1.9}.footer h4{font-size:12px;font-weight:500;color:#fff;margin-bottom:16px}.footer-links a,.footer-contact li{font-size:11px;line-height:2.3;overflow-wrap:anywhere}.footer a:hover{color:#fff}.footer-bottom{border-top:1px solid #ffffff25;padding:24px 0;display:flex;justify-content:space-between;gap:20px;font-size:10px}
@media(min-width:1600px){.hero{min-height:740px}.hero-content{padding-right:70px}.hero-title{font-size:56px}}
@media(max-width:1150px){.nav-links a{padding:0 7px;font-size:11px}.nav-inner{padding:0 24px;gap:12px}.nav-logo img{width:125px}.main-site-link{padding:8px;font-size:11px}.hero-content{padding:55px 32px}.hero-stats{grid-template-columns:repeat(2,1fr)}.hero-title{font-size:40px}.hero-sub{font-size:14px}.hero{min-height:700px}.pd-grid{gap:32px}.product-detail{padding:32px}.sol-card{grid-template-columns:280px 1fr;gap:28px}.consultation-intro{padding:35px 25px}.consultation-form{padding:30px}.consultation-intro h3{font-size:24px}}
@media(max-width:960px){:root{--nav-h:68px}.nav-links{position:absolute;top:var(--nav-h);left:0;right:0;display:none;padding:14px 22px;background:#fff;border-bottom:1px solid var(--gray-300)}.nav-links.open{display:grid;grid-template-columns:repeat(2,1fr)}.nav-links a{font-size:13px;padding:8px 12px}.nav-toggle{display:flex}.main-site-full{display:none}.main-site-short{display:inline}.main-site-link{margin-left:auto}.nav-logo{margin-right:0}.container{padding:0 28px}.section{padding:70px 0}.hero-title{font-size:34px}.hero-content{padding:42px 28px}.hero{min-height:640px}.hero-stats{gap:20px;margin:25px 0}.hero-stats .num{font-size:21px}.hero-actions .btn{font-size:11px;padding:10px 12px}.about-grid{gap:32px}.pcards{gap:14px}.pcard-body{padding:22px 20px}.pcard h3{font-size:16px}.pcard-media{padding:10px}.pd-info h3{font-size:22px}.sol-card{grid-template-columns:240px 1fr}.svc-list{grid-template-columns:repeat(2,1fr)}.svc-list li:last-child{grid-column:span 2}.cta-inner{display:block}.cta-actions{margin-top:25px;max-width:none}.consultation{grid-template-columns:1fr}.consultation-intro{padding:30px}.consultation-intro>a{margin-top:20px}.footer-grid{grid-template-columns:repeat(2,1fr)}.industry-gallery{grid-template-rows:150px 150px}}
@media(max-width:640px){.nav-inner{padding:0 18px;gap:12px}.nav-logo img{width:125px}.main-site-link{font-size:10px;padding:7px 9px}.nav-toggle{width:36px;padding:8px}.nav-toggle span{width:20px}.container{padding:0 22px}.section{padding:56px 0}.section-title{font-size:26px}.section-head,.mfg-head{margin-bottom:28px}.section-sub,.mfg-intro{font-size:13px;margin-top:16px}.kicker{font-size:10px;margin-bottom:12px}.hero{display:flex;flex-direction:column;min-height:0}.hero-content{padding:40px 22px 32px}.hero-tag{font-size:9px;letter-spacing:.09em;margin-bottom:18px}.hero-title{font-size:36px;line-height:1.35;margin-bottom:18px}.hero-sub{font-size:13px}.hero-desc{font-size:12px}.hero-stats{grid-template-columns:repeat(2,1fr);gap:20px 24px;margin:25px 0;padding-top:23px}.hero-stats .num{font-size:24px}.hero-stats .lab{font-size:10px;max-width:150px}.hero-actions .btn{font-size:12px;min-height:45px;padding:11px 17px}.hero-actions .btn:last-child{margin-top:0;min-height:32px}.hero-visual{min-height:270px;width:100%}.hero-bg{object-position:center 45%}.hero-visual figcaption{font-size:9px;left:16px;right:16px;bottom:15px;padding:8px 12px}.tabs{display:flex;margin-bottom:26px}.tab{padding:10px 20px;font-size:12px;flex:1}.about-grid{display:flex;flex-direction:column;gap:26px}.about-figure{order:0;width:100%}.about-text{order:1}.about-text p{font-size:13px}.about-figure img{aspect-ratio:16/10}.mfg-block{margin-top:36px;padding-top:32px}.mfg-block .section-title{font-size:23px}.mfg-gallery{grid-template-columns:repeat(2,1fr);gap:10px}.tl-item{grid-template-columns:1fr;gap:6px;padding:18px 0}.tl-year{font-size:16px}.tl-body p{font-size:13px}.pcards{grid-template-columns:1fr;gap:20px;margin-bottom:35px}.pcard-media{aspect-ratio:16/10;padding:18px 25px 0}.pcard-body{padding:23px}.pcard h3{font-size:20px}.pcard-body>p:not(.pcard-kicker){font-size:13px}.product-detail{padding:24px 20px;margin-top:18px}.pd-grid{display:flex;flex-direction:column;gap:26px}.pd-media{position:static;width:100%}.pd-info h3{font-size:22px}.pd-info .pd-models{font-size:11px}.pd-features li{font-size:12px}.sol-card{display:flex;flex-direction:column;gap:22px;padding:20px}.sol-card-media img{height:auto;aspect-ratio:16/10}.sol-card-body h3{font-size:20px}.sol-card-body p{font-size:13px}.industry-gallery{grid-template-columns:1fr 1fr;grid-template-rows:210px 125px 125px;gap:10px}.industry-gallery img:first-child{grid-column:span 2;grid-row:span 1}.tag{font-size:11px;padding:6px 10px}.tags{gap:8px}.svc-list{grid-template-columns:1fr}.svc-list li{padding:24px;flex-direction:row;gap:18px}.svc-list li:last-child{grid-column:auto;align-items:flex-start}.svc-list li:last-child .svc-body{display:block}.svc-list li:last-child h4{margin-bottom:10px}.svc-body h4{font-size:16px}.svc-body p{font-size:12px}.cta{padding:38px 0}.cta h2{font-size:25px}.cta p{font-size:12px}.cta-actions{gap:10px}.cta-actions .btn{font-size:12px;padding:11px 17px}.cta-actions .btn:last-child{width:100%;justify-content:flex-start}.contact-grid{grid-template-columns:1fr 1fr;gap:0 20px}.contact-item{padding:20px 0}.contact-item p{font-size:13px}.ci-label{font-size:10px}.contact-note{font-size:12px}.consultation{margin-top:40px}.consultation-intro{padding:28px 23px}.consultation-intro h3{font-size:25px}.consultation-form{padding:25px 20px}.form-fields{grid-template-columns:1fr;gap:17px}.form-fields input,.form-fields select,.form-fields textarea{font-size:16px}.form-actions{align-items:flex-start;flex-direction:column}.form-actions .btn{width:100%}.form-consent{font-size:11px}.faq-item{padding:0 18px}.faq-q{font-size:14px;padding:18px 0}.faq-a{font-size:13px}.footer{padding-top:40px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px 25px}.footer-brand,.footer-grid>div:last-child{grid-column:1/-1}.footer-bottom{display:block;font-size:10px}.footer-bottom p+p{margin-top:10px}}
.nav-links a{position:relative;transition:color .2s ease}.nav-links a::after{content:"";position:absolute;left:10px;right:10px;bottom:6px;height:2px;background:#d60000;transform:scaleX(0);transform-origin:left;transition:transform .28s ease}.nav-links a:hover,.nav-links a[aria-current="location"]{color:var(--ink)}.nav-links a:hover::after,.nav-links a:focus-visible::after,.nav-links a[aria-current="location"]::after{transform:scaleX(1)}
.pd-features li{position:relative;padding-left:20px}.pd-features li::before{content:"";position:absolute;left:0;top:calc(9px + .7em);width:6px;height:6px;background:#d60000}.pd-media figcaption{border-left:2px solid #d60000;padding-left:14px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}