:root{--blue:#0866b2;--blue2:#0b77c8;--red:#ef2029;--ink:#080a0d;--muted:#666b73;--line:#dfe2e6;--paper:#f5f5f7;--white:#fff;--max:1280px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.site-header{position:fixed;inset:0 0 auto;height:64px;z-index:100;color:#fff;background:rgba(9,12,16,.72);backdrop-filter:saturate(160%) blur(20px);transition:.3s}
.site-header.scrolled{height:56px;background:rgba(255,255,255,.88);color:#111;border-bottom:1px solid rgba(0,0,0,.08)}
.nav-shell{height:100%;max-width:var(--max);padding:0 24px;margin:auto;display:flex;align-items:center;gap:34px}
.logo img{width:70px;height:28px;object-fit:contain;filter:brightness(0) invert(1)}
.scrolled .logo img{filter:none}
.site-nav{display:flex;justify-content:center;align-items:center;gap:30px;flex:1;font-size:13px;letter-spacing:.01em}
.site-nav a{opacity:.84;transition:.2s}.site-nav a:hover{opacity:1}
.lang-switch{font-size:12px;border:1px solid currentColor;border-radius:99px;padding:5px 9px}
.menu-button{display:none;border:0;background:none;color:inherit;width:32px;height:32px;padding:7px;margin-left:auto}
.menu-button span{display:block;height:1px;background:currentColor;margin:6px 0}
.hero{height:min(920px,100vh);min-height:720px;background:radial-gradient(circle at 76% 44%,#26384c 0,#10171f 26%,#080b0f 60%,#050608 100%);position:relative;overflow:hidden;color:#fff;display:flex;align-items:center}
.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.58) 0,rgba(0,0,0,.22) 43%,transparent 68%)}
.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.hero-copy{position:relative;z-index:3;width:min(720px,55vw);margin-left:max(7vw,calc((100vw - var(--max))/2));padding-top:50px}
.eyebrow{font-size:12px;line-height:1.3;font-weight:700;letter-spacing:.18em;text-transform:uppercase;margin:0 0 24px}.eyebrow.blue{color:var(--blue)}
.hero h1{font-size:clamp(54px,6.7vw,102px);line-height:.98;letter-spacing:-.055em;margin:0 0 30px;font-weight:650}
.hero-copy>p:not(.eyebrow){font-size:clamp(17px,1.4vw,22px);line-height:1.65;color:#c7cbd1;max-width:650px}
.hero-actions{display:flex;align-items:center;gap:28px;margin-top:38px}
.button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;border-radius:99px;padding:0 23px;font-weight:600;font-size:14px;transition:.25s}.button.light{background:#fff;color:#111}.button.light:hover{background:#e9eef3;transform:translateY(-2px)}.button.dark{background:#111;color:#fff}
.text-link{font-size:15px;font-weight:600}.text-link.dark{color:var(--blue)}
.section{max-width:var(--max);margin:auto;padding:130px 32px}
.statement{text-align:center;max-width:1080px}.statement h2,.section-head h2,.about-copy h2,.dark-feature h2{font-size:clamp(42px,5vw,72px);line-height:1.08;letter-spacing:-.045em;margin:0;font-weight:650}.statement>p:last-child{font-size:20px;line-height:1.8;color:var(--muted);max-width:800px;margin:30px auto 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:58px}.section-head .eyebrow{margin-bottom:18px}
.product-section{padding-top:90px}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.product-card{background:var(--paper);min-height:440px;border-radius:24px;padding:28px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;transition:.35s}.product-card:hover{transform:translateY(-6px);box-shadow:0 22px 45px rgba(0,0,0,.1)}
.product-visual{height:245px;display:flex;align-items:center;justify-content:center}.product-visual img{width:100%;height:100%;object-fit:contain}
.product-card h3{font-size:26px;margin:0 0 10px;letter-spacing:-.02em}.product-card p{color:var(--muted);line-height:1.6;margin:0;max-width:300px}.card-arrow{float:right;font-size:24px}
.valve-icon{display:block;position:relative;width:150px;height:150px;border-radius:24%;background:linear-gradient(145deg,#1683ce,#064979 55%,#032d50);box-shadow:inset 8px 12px 20px rgba(255,255,255,.16),0 25px 30px rgba(0,50,90,.18)}
.valve-icon:before,.valve-icon:after{content:"";position:absolute;top:35%;width:42%;height:42%;border-radius:50%;background:radial-gradient(circle,#f9fafb 14%,#68727b 17%,#e2e5e7 30%,#4a535c 33%,#aab0b5 57%,#30363b 60%)}.valve-icon:before{left:-32%}.valve-icon:after{right:-32%}.valve-icon.large{width:260px;height:260px}.valve-icon.large:before,.valve-icon.large:after{top:34%}
.dark-feature{min-height:760px;background:#080a0d;color:#fff;padding:max(10vw,130px);position:relative;overflow:hidden;display:flex;align-items:center}.feature-copy{position:relative;z-index:2;max-width:680px}.feature-copy>p:not(.eyebrow){color:#b7bbc1;font-size:19px;line-height:1.8;margin:32px 0}.rings{position:absolute;width:55vw;height:55vw;right:-8vw;top:2vw}.rings i{position:absolute;inset:0;border-radius:50%;border:1px solid rgba(70,168,239,.28);box-shadow:0 0 70px rgba(15,123,204,.08)}.rings i:nth-child(2){inset:12%}.rings i:nth-child(3){inset:25%}.rings b{position:absolute;inset:38%;border-radius:50%;background:radial-gradient(circle at 35% 30%,#2bb0ff,#075a96 35%,#061d2d 70%);box-shadow:0 0 90px rgba(0,133,220,.45)}
.solution-strip{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line)}.solution-chip{padding:30px 24px 50px;border-right:1px solid var(--line);transition:.25s}.solution-chip:hover{background:var(--paper)}.solution-chip span{font-size:12px;color:var(--blue)}.solution-chip h3{font-size:23px;margin:60px 0 16px}.solution-chip p{font-size:14px;color:var(--muted);line-height:1.6}
.about-band{background:var(--paper);display:grid;grid-template-columns:1fr 1fr;gap:8vw;align-items:center;padding:130px max(6vw,40px)}.about-copy{max-width:600px;margin-left:auto}.about-copy>p:not(.eyebrow){font-size:18px;color:var(--muted);line-height:1.8;margin:30px 0}
.factory-image{height:580px;border-radius:28px;position:relative;overflow:hidden;background:#cad5dc}.factory-image img{width:100%;height:100%;object-fit:cover}.factory-image small,.page-image-wrap figcaption{position:absolute;right:18px;bottom:16px;border-radius:99px;background:rgba(0,0,0,.55);backdrop-filter:blur(12px);padding:7px 12px;color:#fff;font-size:11px;letter-spacing:.08em}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{border-top:2px solid #111;padding:22px 2px 30px;min-height:280px;display:flex;flex-direction:column}.news-card time{font-size:12px;color:var(--muted)}.news-card h3{font-size:25px;line-height:1.35;margin:40px 0 12px}.news-card p{color:var(--muted);line-height:1.7;margin:0}.news-card span{margin-top:auto;color:var(--blue);font-size:24px}
.contact-cta{background:linear-gradient(135deg,#07548c,#0878c4);color:#fff;text-align:center;padding:135px 30px}.contact-cta h2{font-size:clamp(40px,5vw,72px);letter-spacing:-.045em;margin:0 0 42px}
.site-footer{background:#090b0e;color:#d6d8dc;padding:80px max(5vw,24px) 25px}.footer-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:2fr 1fr 1.5fr;gap:8vw}.footer-logo{width:100px;filter:brightness(0) invert(1);margin-bottom:24px}.footer-grid h3{font-size:13px;color:#777e87;text-transform:uppercase;letter-spacing:.14em;margin:0 0 24px}.footer-grid a,.footer-grid span{display:block;font-size:14px;margin:12px 0}.footer-grid p{color:#8d939b}.footer-bottom{max-width:var(--max);margin:65px auto 0;padding-top:20px;border-top:1px solid #24282d;display:flex;justify-content:space-between;color:#6f747b;font-size:12px}
.page-hero{min-height:620px;background:#090b0e;color:#fff;display:flex;align-items:flex-end;padding:150px max(7vw,calc((100vw - var(--max))/2)) 100px}.page-hero.compact{min-height:550px}.page-hero>div{max-width:950px}.page-hero h1,.contact-hero h1{font-size:clamp(54px,7vw,100px);line-height:1;letter-spacing:-.055em;margin:0}.page-hero>div>p:last-child{font-size:21px;color:#aeb4bc;max-width:700px;line-height:1.7}
.editorial{display:grid;grid-template-columns:1fr 1fr;gap:8vw;align-items:center}.editorial-lead{font-size:clamp(22px,2.2vw,32px);line-height:1.65;letter-spacing:-.02em}.editorial-lead p{margin:0 0 1em}.page-image{width:100%;border-radius:24px}.page-image-wrap{margin:0;position:relative}.page-image-wrap .page-image{min-height:500px;object-fit:cover}.engineering-panel{height:560px;border-radius:26px;background:#edf0f2;padding:50px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}.engineering-panel span{font-size:100px;font-weight:800;color:var(--blue);letter-spacing:-.08em}.engineering-panel div{height:220px;border:35px solid #aeb8c0;border-radius:50%;box-shadow:inset 0 0 0 3px #fff,0 20px 40px rgba(0,0,0,.12)}.engineering-panel p{letter-spacing:.13em;text-transform:uppercase;font-size:12px}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;border-top:1px solid var(--line)}.principles b{color:var(--blue)}.principles h2{font-size:30px;margin:50px 0 20px}.principles p{color:var(--muted);line-height:1.8}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:55px}.filters a{border:1px solid var(--line);border-radius:99px;padding:9px 17px;font-size:14px}.filters a.active,.filters a:hover{background:#111;color:#fff;border-color:#111}
.catalogue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.catalogue-card{background:var(--paper);border-radius:22px;padding:24px 28px 30px;transition:.3s}.catalogue-card:hover{transform:translateY(-5px)}.catalogue-image{height:310px;display:flex;align-items:center;justify-content:center}.catalogue-card>p{font-size:12px;color:var(--muted)}.catalogue-card h2{font-size:25px;margin:8px 0 20px}.catalogue-card>span{color:var(--blue);font-size:14px}
.product-detail-hero{min-height:750px;background:var(--paper);padding:130px max(7vw,calc((100vw - var(--max))/2)) 70px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:6vw}.detail-copy h1{font-size:clamp(55px,6vw,88px);line-height:1;letter-spacing:-.055em;margin:0 0 20px}.detail-copy>p:last-child{font-size:19px;color:var(--muted);line-height:1.7;max-width:590px}.detail-copy strong{color:var(--blue)}.detail-image{height:530px;background:#fff;border-radius:28px;display:flex;align-items:center;justify-content:center}.detail-image img{width:100%;height:100%;object-fit:contain}
.detail-sections article{display:grid;grid-template-columns:1fr 2fr;gap:5vw;padding:60px 0;border-top:1px solid var(--line)}.detail-sections article>div{font-size:18px;line-height:1.9;color:#41464c}.download-bar{text-align:center;padding:0 30px 120px}
.solution-list,.article-list{padding-top:70px}.solution-row,.article-row{display:grid;grid-template-columns:80px 1fr 40px;gap:30px;align-items:start;padding:50px 10px;border-top:1px solid var(--line)}.solution-row:hover,.article-row:hover{background:var(--paper)}.solution-row>span,.article-row time{color:var(--blue);font-size:12px}.solution-row h2,.article-row h2{font-size:35px;margin:0 0 14px}.solution-row p,.article-row p{color:var(--muted);line-height:1.7;max-width:760px;margin:0}.solution-row b,.article-row b{font-size:24px}
.article-detail{max-width:900px;margin:auto;padding:190px 30px 130px}.article-detail header{text-align:center;padding-bottom:70px;border-bottom:1px solid var(--line)}.article-detail time{color:var(--blue);font-size:13px}.article-detail h1{font-size:clamp(45px,6vw,75px);line-height:1.12;letter-spacing:-.045em;margin:25px 0}.article-detail header p{font-size:19px;color:var(--muted);line-height:1.7}.article-body{font-size:18px;line-height:2;padding-top:60px}.article-body p{margin:0 0 1.5em}
.contact-hero{min-height:700px;background:linear-gradient(135deg,#052e4b,#0874bb);color:#fff;display:flex;align-items:flex-end;padding:150px max(7vw,calc((100vw - var(--max))/2)) 100px}.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.contact-grid article{border-top:2px solid #111;padding-top:25px;min-height:260px}.contact-grid span{font-size:12px;color:var(--blue);font-weight:700;letter-spacing:.12em;text-transform:uppercase}.contact-grid a,.contact-grid p{font-size:24px;line-height:1.5;display:block;margin:50px 0 12px;word-break:break-word}.contact-grid small{color:var(--muted)}.contact-grid .map-link{font-size:14px;color:var(--blue);margin:20px 0}
.empty-state{grid-column:1/-1;padding:80px;text-align:center;background:var(--paper);color:var(--muted);border-radius:20px}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:980px){.site-nav{display:none;position:fixed;inset:56px 0 auto;background:rgba(255,255,255,.98);color:#111;padding:25px;flex-direction:column;align-items:flex-start;gap:0}.site-nav.open{display:flex}.site-nav a{width:100%;font-size:18px;padding:15px;border-bottom:1px solid var(--line)}.menu-button{display:block}.lang-switch{margin-left:0}.hero-copy{width:82vw}.hero-photo{object-position:62% center}.product-grid,.catalogue-grid{grid-template-columns:repeat(2,1fr)}.solution-strip{grid-template-columns:repeat(2,1fr)}.about-band,.editorial,.product-detail-hero{grid-template-columns:1fr}.about-copy{margin:0}.factory-image{height:460px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.contact-grid{grid-template-columns:1fr}.principles{grid-template-columns:1fr}.dark-feature{padding:100px 40px}.rings{opacity:.45;width:80vw;height:80vw}}
@media(max-width:640px){.nav-shell{padding:0 16px}.hero{min-height:700px}.hero-copy{margin:0;padding:90px 22px 30px;width:100%}.hero h1{font-size:52px}.hero-photo{object-position:63% center;opacity:.56}.hero:after{background:linear-gradient(90deg,rgba(0,0,0,.8),rgba(0,0,0,.32))}.hero-actions{align-items:flex-start;flex-direction:column;gap:18px}.section{padding:90px 20px}.section-head{align-items:flex-start;flex-direction:column}.statement h2,.section-head h2,.about-copy h2,.dark-feature h2{font-size:42px}.product-grid,.catalogue-grid,.news-grid{grid-template-columns:1fr}.product-card{min-height:390px}.solution-strip{grid-template-columns:1fr}.about-band{padding:90px 20px}.factory-image{height:330px}.dark-feature{min-height:650px;padding:90px 22px}.rings{width:110vw;height:110vw;right:-60vw;top:20%}.site-footer{padding-top:60px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column;gap:10px}.page-hero,.contact-hero{min-height:520px;padding:130px 22px 70px}.page-hero h1,.contact-hero h1{font-size:50px}.engineering-panel{height:400px}.catalogue-image{height:250px}.product-detail-hero{padding:120px 20px 60px}.detail-image{height:360px}.valve-icon.large{width:180px;height:180px}.detail-sections article{grid-template-columns:1fr;gap:5px}.solution-row,.article-row{grid-template-columns:40px 1fr;padding:35px 5px}.solution-row b,.article-row b{display:none}.solution-row h2,.article-row h2{font-size:27px}.article-detail{padding:130px 20px 90px}.contact-grid article{min-height:210px}.contact-grid a,.contact-grid p{font-size:20px;margin-top:35px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}}