:root{--navy:#082847;--deep:#05182d;--blue:#0067b8;--green:#15b38b;--ink:#112c43;--muted:#62768a;--line:#dce6ed;--soft:#f3f7fa;--container:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);font-size:16px;line-height:1.7}button,input,textarea{font:inherit}a{color:inherit;text-decoration:none}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid var(--green);outline-offset:5px}img{display:block;max-width:100%}.container{width:min(var(--container),calc(100% - 80px));margin:auto}.skip-link{position:absolute;top:-80px;background:white;padding:12px;z-index:100}.skip-link:focus{top:5px}.header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;min-height:94px}.brand{display:flex;gap:12px;align-items:center;flex-shrink:0}.brand img{width:62px;height:62px;object-fit:contain}.brand strong{display:block;font-size:26px;letter-spacing:2px;line-height:1.35}.brand small{display:block;font-size:12px;letter-spacing:3px;margin-top:2px;color:var(--muted)}nav{display:flex;gap:26px;align-items:center}nav a{font-size:15px;font-weight:600;padding:33px 0;position:relative;white-space:nowrap}nav a:hover,nav a.active{color:var(--blue)}nav a.active:after{content:"";position:absolute;bottom:20px;left:0;width:24px;height:3px;background:var(--green)}.header-phone{border-left:1px solid var(--line);padding-left:25px;white-space:nowrap}.header-phone span{display:block;font-size:12px;color:var(--muted)}.header-phone strong{display:block;font-size:19px;letter-spacing:.5px}.menu-toggle{display:none}.hero{position:relative;background:var(--deep);color:white;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,18,36,.97) 0%,rgba(4,24,44,.9) 35%,rgba(4,24,44,.28) 100%);z-index:1}.hero-grid{position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(52,150,178,.13) 1px,transparent 1px),linear-gradient(rgba(52,150,178,.13) 1px,transparent 1px),radial-gradient(ellipse at 75% 35%,#075674,transparent 65%);background-size:78px 78px,78px 78px,auto}.hero.has-image{background-image:url('assets/hero.png');background-size:cover;background-position:center}.hero.has-image .hero-grid,.hero.has-image .hero-signature{display:none}.hero-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:48px;min-height:590px;padding-top:66px;padding-bottom:80px}.hero-copy{max-width:665px}.eyebrow{font-size:12px;letter-spacing:2.1px;font-weight:700;color:var(--blue);margin:0 0 18px;line-height:1.4}.eyebrow.light{color:#68d9bf}.hero h1{font-size:clamp(36px,4vw,58px);line-height:1.25;letter-spacing:1px;margin:0 0 26px;font-weight:700}.hero h1 span{color:#5be2bb}.hero-description{color:#c5d5e2;font-size:17px;line-height:1.9;margin-bottom:30px}.actions{display:flex;flex-wrap:wrap;gap:14px}.button{display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;min-height:49px;padding:12px 25px;font-weight:600;font-size:15px;transition:background .18s,transform .18s;border-radius:3px}.button:hover{transform:translateY(-2px)}.primary{background:var(--green);color:var(--deep)}.primary:hover{background:#33cba5}.outline-light{border-color:#627991;color:#fff;background:rgba(0,0,0,.12)}.outline-light:hover{background:#183852}.dark{background:var(--navy);color:#fff}.dark:hover{background:var(--blue)}.hero-foot{display:flex;align-items:center;flex-wrap:wrap;gap:16px;font-size:13px;color:#a8bfd3;margin-top:36px}.hero-foot i{height:12px;width:1px;background:#52728b}.hero-signature{align-self:center;border:1px solid #2b7d89;padding:30px;min-width:260px;transform:rotate(-3deg);background:#07344480}.hero-signature>span{font-size:100px;line-height:1.3;color:#fff}.hero-signature div{font-size:12px;letter-spacing:3px;color:#72ceb8}.hero-signature p{border-top:1px solid #2b7d89;padding-top:12px;font-size:15px;color:#d0e5ed}.hero-bottom{border-top:1px solid #ffffff25;position:relative;z-index:2;background:#071e32b0}.hero-bottom .container{display:flex;align-items:center;gap:40px;padding:16px 0;font-size:13px;color:#a9c0d1}.hero-bottom a{margin-left:auto;color:#cfebe6}.section{padding:88px 0}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:40px}h2{font-size:34px;line-height:1.45;margin:0;letter-spacing:.3px}.section-heading>p{margin:0;color:var(--muted);font-size:15px;line-height:1.8}.products-section{background:var(--soft)}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.product-card{background:white;padding:28px;border:1px solid var(--line);text-align:left;color:var(--ink);display:flex;flex-direction:column;align-items:flex-start;transition:border-color .2s,box-shadow .2s;min-height:306px;border-radius:4px}.product-card:hover{border-color:var(--green);box-shadow:0 8px 24px #0828470c}.card-number{font-size:12px;letter-spacing:1.5px;color:var(--muted)}.product-glyph{font-size:25px;font-weight:800;letter-spacing:2px;color:var(--blue);margin:23px 0 12px;border-left:3px solid var(--green);padding-left:14px;line-height:1.3}.product-card h3{font-size:22px;margin:0 0 12px;line-height:1.45}.product-card p{font-size:14px;margin:0 0 22px;color:var(--muted);line-height:1.8}.card-action{margin-top:auto;font-size:13px;font-weight:600;color:var(--blue);border-top:1px solid var(--line);width:100%;padding-top:14px}.product-cta{background:var(--navy);color:white;padding:30px;display:flex;flex-direction:column;align-items:flex-start;border-radius:4px}.product-cta h3{font-size:25px;line-height:1.5;margin:0 0 12px}.product-cta>p:not(.eyebrow){font-size:14px;color:#b8ccdd;margin:0 0 24px}.product-cta .button{margin-top:auto}.about-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px;align-items:center}.about-brand{border:1px solid var(--line);background:white;padding:35px}.about-brand img{width:100%;height:auto}.brand-caption{border-top:1px solid var(--line);padding-top:17px;margin-top:15px;font-size:12px;letter-spacing:2px;display:flex;justify-content:space-between;gap:15px;color:var(--muted)}.brand-caption span{letter-spacing:0}.about-copy>p:not(.eyebrow){color:var(--muted);font-size:16px;margin-top:23px}.about-detail{display:grid;grid-template-columns:90px 1fr;border-top:1px solid var(--line);gap:12px 14px;padding-top:22px;margin:25px 0;font-size:14px}.about-detail span{color:var(--muted)}.about-detail strong{font-weight:500}.text-link{color:var(--blue);border-bottom:2px solid var(--green);padding-bottom:5px;font-weight:600;font-size:15px}.applications-section{background:#f5f8fa}.application-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}.application-grid article{border-right:1px solid var(--line);padding:32px 24px 0}.application-grid article:first-child{padding-left:0}.application-grid article:last-child{border-right:0}.application-grid span{font-size:13px;color:var(--green);letter-spacing:2px;font-weight:700}.application-grid h3{font-size:22px;margin:15px 0 12px}.application-grid p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}.contact-section{background:var(--navy);color:white;position:relative}.contact-layout{display:grid;grid-template-columns:1fr 1.05fr;gap:90px;align-items:start}.contact-copy h2{font-size:42px;line-height:1.4;margin-bottom:24px}.contact-copy>p:not(.eyebrow){font-size:16px;color:#afc4d7}.contact-person{margin-top:42px;color:#afc4d7;font-size:14px}.contact-person strong{color:white;font-size:17px;margin-left:15px}.big-phone{display:block;font-size:36px;font-weight:700;letter-spacing:1px;margin-top:10px;line-height:1.6}.contact-email{display:inline-block;font-size:20px;color:#6ce4c6;margin-top:8px;overflow-wrap:anywhere}.inquiry-panel{background:white;border-radius:5px;color:var(--ink);padding:35px}.inquiry-panel h3{font-size:23px;margin:0 0 8px}.inquiry-panel>p{font-size:13px;color:var(--muted);margin:0 0 25px}form label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}form label span{color:var(--blue)}form input,form textarea{display:block;width:100%;border:1px solid #cfdae2;background:#f7f9fb;padding:10px 12px;border-radius:3px;color:var(--ink);font-size:14px;margin-bottom:18px;line-height:1.7}form textarea{resize:vertical}form input:focus,form textarea:focus{outline:2px solid var(--green);outline-offset:1px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.inquiry-panel .button{width:100%}.form-help{font-size:12px;text-align:center;color:var(--muted);margin-bottom:0}.form-help a{color:var(--blue)}#email-fallback{border-top:1px solid var(--line);margin-top:20px;padding-top:15px;font-size:13px;color:var(--muted)}#email-fallback p{margin-top:0}.copy-button{background:#eef5f8;border:1px solid var(--line);padding:7px 15px;color:var(--ink);font-size:13px;border-radius:3px}#copy-status{margin-left:12px;font-size:12px}footer{background:#051b30;color:#d2dfeb;font-size:13px}.footer-main{display:flex;justify-content:space-between;gap:25px;padding:38px 0}.footer-main strong{font-size:16px;font-weight:500}.footer-main p{color:#8da7bc;font-size:12px;margin:7px 0 0}.footer-links{display:flex;gap:25px;align-items:center}.footer-bottom{padding:18px 0;border-top:1px solid #244059;display:flex;justify-content:space-between;gap:20px;color:#8da7bc;font-size:12px}.floating-contact{position:fixed;right:22px;bottom:25px;background:var(--green);color:var(--deep);font-weight:600;font-size:14px;padding:12px 21px;border-radius:4px;z-index:20;box-shadow:0 5px 20px #0002}dialog{width:min(560px,calc(100% - 36px));border:0;border-radius:7px;padding:40px;color:var(--ink);box-shadow:0 20px 100px #0003}dialog::backdrop{background:#02182cbf;backdrop-filter:blur(4px)}.dialog-close{position:absolute;right:14px;top:8px;width:40px;height:40px;border:0;background:transparent;font-size:30px;color:var(--muted)}dialog h2{font-size:28px}dialog>p:not(.eyebrow){color:var(--muted);font-size:15px}.product-tags{display:flex;flex-wrap:wrap;gap:9px;margin:25px 0}.product-tags span{padding:6px 12px;background:var(--soft);border:1px solid var(--line);font-size:13px}.dialog-note{border-left:3px solid var(--green);padding-left:15px;font-size:13px;color:var(--muted);margin:25px 0}.dialog-close:hover{color:var(--blue)}
@media(min-width:1600px){.hero-inner{min-height:670px}.hero h1{font-size:64px}}@media(max-width:1100px){.container{width:calc(100% - 48px)}.header-phone{display:none}nav{gap:24px}.hero-signature{display:none}.about-layout{gap:40px}.contact-layout{gap:40px}.big-phone{font-size:30px}.brand-caption{display:block}.brand-caption span{display:block;margin-top:5px}}@media(max-width:760px){html{scroll-padding-top:82px}.container{width:calc(100% - 36px)}.header-inner{min-height:78px}.brand img{height:52px;width:52px}.brand strong{font-size:22px}.brand small{font-size:10px}.menu-toggle{display:flex;flex-direction:column;gap:5px;border:0;background:transparent;padding:12px;flex-shrink:0}.menu-toggle span{width:23px;height:2px;background:var(--navy)}nav{display:none;position:absolute;left:0;right:0;top:78px;background:white;padding:15px 25px;box-shadow:0 10px 20px #08284712;border-top:1px solid var(--line)}nav.open{display:flex;flex-direction:column;align-items:stretch;gap:0}nav a{padding:12px 0;font-size:16px}nav a.active:after{bottom:8px}.hero-inner{min-height:520px;padding:66px 0 55px}.hero h1{font-size:38px;line-height:1.35}.hero-description{font-size:15px}.hero.has-image{background-position:65% center}.hero:before{background:linear-gradient(90deg,#031224eb,#03122499)}.hero-foot{gap:10px;font-size:12px}.hero-bottom .container{gap:15px;font-size:12px;flex-wrap:wrap}.hero-bottom a{margin-left:0}.section{padding:60px 0}.section-heading{display:block;margin-bottom:28px}.section-heading>p{margin-top:16px;font-size:14px}h2{font-size:28px}.product-grid{grid-template-columns:repeat(2,1fr);gap:12px}.product-card{padding:20px;min-height:295px}.product-card h3{font-size:19px}.product-card p{font-size:13px}.product-glyph{font-size:20px}.card-number{font-size:10px}.product-cta{padding:20px}.product-cta h3{font-size:21px}.product-cta .button{padding:10px 15px;font-size:13px}.about-layout{grid-template-columns:1fr;gap:32px}.about-brand{width:min(330px,100%);margin:auto;padding:20px}.about-copy>p:not(.eyebrow){font-size:15px}.about-detail{grid-template-columns:80px 1fr;font-size:13px}.application-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}.application-grid article{padding:25px 15px 0}.application-grid article:nth-child(3){padding-left:0}.application-grid article:nth-child(2){border-right:0}.application-grid h3{font-size:21px}.contact-layout{grid-template-columns:1fr;gap:32px}.contact-copy h2{font-size:36px}.contact-person{margin-top:25px}.big-phone{font-size:32px}.inquiry-panel{padding:25px}.footer-main{display:block}.footer-links{margin-top:23px}.footer-bottom{flex-direction:column;gap:5px;padding-bottom:75px}.floating-contact{right:18px;bottom:18px}.eyebrow{font-size:11px}.button{padding:11px 22px}.brand-caption{font-size:11px}}@media(max-width:380px){.hero h1{font-size:32px}.product-grid{grid-template-columns:1fr}.product-card{min-height:260px}.form-row{grid-template-columns:1fr;gap:0}.big-phone{font-size:28px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.about-brand .city-photo{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover}.photo-credit{display:block;margin-top:10px;font-size:12px;color:#62768a}.header-phone strong{font-size:16px}.contact-email{overflow-wrap:anywhere}