:root{--blue:#175cdb;--blue-hover:#104ab8;--green:#00a030;--ink:#13223b;--muted:#617086;--pale:#f2f7ff;--line:#dce4ee;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;--gutter:clamp(22px,4.5vw,72px)}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased}h1,h2,h3,p,ul{margin:0}h1,h2,h3{line-height:1.4}ul{padding:0;list-style:none}a{text-decoration:none;color:inherit}button{font-family:inherit;cursor:pointer}img{display:block;max-width:100%;height:auto}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:5px}::selection{background:#c7dcff;color:var(--ink)}.container{width:calc(100% - var(--gutter)*2);max-width:1320px;margin-inline:auto}.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}.icon{width:24px;height:24px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:20px;top:12px;z-index:200;background:var(--blue);color:white;padding:10px 20px;transform:translateY(-160%)}.skip-link:focus{transform:none}
/* Navigation */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #edf1f7}.header-inner{height:88px;display:flex;align-items:center;justify-content:space-between;gap:40px}.brand{display:block;flex-shrink:0;width:236px;margin-left:-12px}.brand img{width:100%}.main-nav{display:flex;align-items:center;gap:44px}.main-nav>a{font-size:15px;font-weight:600;position:relative;transition:color .2s;white-space:nowrap}.main-nav>a:not(.button){padding:31px 0}.main-nav>a:not(.button)::after{content:"";position:absolute;bottom:15px;left:0;width:100%;height:3px;background:var(--blue);border-radius:4px;transform:scaleX(0);transition:transform .2s}.main-nav>a:not(.button):hover,.main-nav>a.active:not(.button){color:var(--blue)}.main-nav>a.active:not(.button)::after{transform:scaleX(1)}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;min-height:54px;padding:13px 28px;border:1px solid var(--blue);border-radius:8px;background:var(--blue);color:#fff;font-size:16px;font-weight:600;line-height:1.5;transition:background .2s,transform .2s,box-shadow .2s}.button:hover{background:var(--blue-hover);box-shadow:0 6px 20px #175cdb18;transform:translateY(-2px)}.button-small{min-height:44px;padding:10px 21px;font-size:14px;gap:13px}.button-small .icon{width:18px;height:18px}.button-outline{color:var(--ink);background:transparent;border-color:#8391a3}.button-outline:hover{color:var(--blue);background:#fff;border-color:var(--blue)}.menu-toggle{display:none}
/* Hero */
.hero{position:relative;min-height:620px;background:#edf5ff url("assets/hero-city.webp") center 42%/cover no-repeat;display:flex;align-items:center;isolation:isolate}.hero-content{padding-block:72px 88px}.hero h1{font-size:clamp(44px,4.55vw,70px);font-weight:750;letter-spacing:-.035em;line-height:1.4}.hero h1 span{color:var(--blue)}.hero p{font-size:18px;line-height:1.9;color:#495b73;margin-top:24px;max-width:560px;font-weight:400}.hero-actions{display:flex;gap:22px;margin-top:40px}.hero-actions .button{min-width:190px}.hero-actions .button-outline{min-width:170px}.capability-strip{background:#fff}.capability-list{display:grid;grid-template-columns:repeat(4,1fr);padding-block:40px}.capability-list>div{padding-left:32px;position:relative;border-left:1px solid #e5eaf1}.capability-list>div:first-child{padding-left:22px;border-left:0}.capability-list h2{font-size:21px;font-weight:650;position:relative}.capability-list h2::before{content:"";width:4px;height:18px;background:var(--green);border-radius:1px;position:absolute;left:-15px;top:7px;transform:skew(-16deg)}.capability-list p{font-size:14px;color:var(--muted);margin-top:9px}
/* Section rhythm and industry */
.section{padding-block:88px}.section-heading{margin-bottom:46px}.section-heading h2{font-size:clamp(28px,2.8vw,40px);font-weight:700;letter-spacing:-.025em}.section-heading h2::after{content:"";display:block;width:48px;height:4px;border-radius:3px;background:var(--green);margin-top:19px}.section-heading p{color:var(--muted);font-size:17px;margin-top:16px}.industry-section{background:var(--pale)}.industry-tabs{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid #cbd8ec}.industry-tab{position:relative;display:flex;align-items:center;justify-content:center;gap:15px;padding:18px 14px 23px;font-size:18px;font-weight:600;color:#5a677c;background:transparent;border:0}.industry-tab .icon{width:31px;height:31px;stroke-width:1.6}.industry-tab::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:3px;background:var(--blue);transform:scaleX(0);transition:transform .2s}.industry-tab[aria-selected=true]{color:var(--blue)}.industry-tab[aria-selected=true]::after{transform:scaleX(1)}.industry-tab:hover{color:var(--blue)}.industry-panel{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding-top:48px;outline-offset:12px}.industry-visual{overflow:hidden;border-radius:12px;aspect-ratio:1.12}.industry-visual img{width:100%;height:100%;object-fit:cover;object-position:center 55%;transition:transform .6s}.industry-visual:hover img{transform:scale(1.025)}.industry-content{padding-right:8px}.industry-number{color:#7d8ba1;font-size:15px;letter-spacing:.08em;font-variant-numeric:tabular-nums}.industry-content h3{font-size:32px;margin-top:8px;font-weight:650;letter-spacing:-.02em}.industry-content h3::after{content:"";display:block;width:40px;height:3px;background:var(--green);margin-top:15px}.industry-content>p{font-size:17px;color:#58677b;margin-top:20px;line-height:1.9;min-height:64px}.industry-features{display:grid;grid-template-columns:1fr 1fr;gap:22px 16px;margin-top:30px;min-height:80px}.industry-features li{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:500}.feature-check{display:inline-flex;color:var(--blue)}.feature-check .icon{width:24px;height:24px}.text-link{display:inline-flex;align-items:center;gap:13px;color:var(--blue);font-weight:600;font-size:16px;margin-top:35px}.text-link:hover .arrow-circle{background:var(--blue);color:#fff;transform:translateX(4px)}.arrow-circle{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border:1.5px solid currentColor;border-radius:50%;transition:background .2s,color .2s,transform .2s}.arrow-circle .icon{width:18px;height:18px}
/* Technical services */
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.service-card{border:1px solid #d5dfed;border-radius:12px;padding:36px 32px 12px;transition:border-color .25s,box-shadow .25s}.service-card:hover{border-color:#a2bdec;box-shadow:0 12px 36px #13223b06}.service-intro{display:flex;align-items:flex-start;gap:27px;min-height:110px}.service-intro .service-icon{width:58px;height:58px;color:var(--blue);stroke-width:1.5;margin-top:3px}.service-intro h3{font-size:24px;font-weight:650}.service-intro p{font-size:15px;color:var(--muted);line-height:1.85;margin-top:12px}.service-list{margin-top:18px}.service-list li{display:flex;align-items:center;gap:24px;padding:20px 9px;border-top:1px solid var(--line);font-size:17px;font-weight:500}.service-list .icon{width:28px;height:28px;color:var(--green);stroke-width:1.6}
/* About and qualifications */
.about-section{padding-top:24px;padding-bottom:100px}.about-section .section-heading{margin-bottom:58px}.about-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:62px}.company-intro{border-right:1px solid var(--line);padding-right:64px}.founded-year{color:var(--blue);font-size:100px;font-weight:750;letter-spacing:-.06em;line-height:1.05;font-variant-numeric:tabular-nums}.founded-year>span{font-size:16px;letter-spacing:0;margin-left:10px;font-weight:400}.company-intro h3{font-size:29px;margin-top:15px}.company-intro p{font-size:16px;line-height:2;color:var(--muted);margin-top:24px;max-width:480px}.credentials h3{font-size:28px;margin-bottom:13px}.credentials li{display:flex;align-items:center;gap:18px;font-size:18px;padding:12px 0;border-bottom:1px solid var(--line)}.credentials li:last-child{border-bottom:0}.credentials .icon{width:25px;height:25px;color:#76aeff;fill:#76aeff;stroke-width:1.2}.credentials .award-tick{stroke:white;stroke-width:2;fill:none}.certifications{border-top:1px solid var(--line);margin-top:48px;padding-top:28px}.certification-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.certification-heading h3{font-size:25px}.certification-heading>span{color:var(--muted);font-size:14px}.iso-list{display:grid;grid-template-columns:repeat(5,1fr);margin-top:28px}.iso-list li{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;border-left:1px solid var(--line);padding:10px 14px}.iso-list li:first-child{border-left:0;align-items:flex-start;padding-left:0}.iso-list strong{font-size:clamp(17px,1.7vw,24px);font-weight:650;color:var(--blue);letter-spacing:-.035em;white-space:nowrap}.iso-list span{font-size:14px;color:var(--muted);text-align:center}
/* Contact and footer */
.contact-section{background:var(--blue);color:white;padding-block:76px 82px}.contact-section h2{font-size:clamp(34px,3.9vw,54px);font-weight:650;letter-spacing:-.025em;line-height:1.5}.contact-section>div>p{font-size:18px;color:#e1ecff;margin-top:14px}.contact-actions{display:flex;align-items:center;gap:44px;margin-top:36px}.button-white{background:white;color:var(--blue);border-color:white;min-width:185px}.button-white:hover{background:#e9f1ff;box-shadow:0 6px 20px #13223b22}.contact-phone{display:flex;align-items:center;gap:20px}.contact-phone>.icon{width:36px;height:36px}.contact-phone>span{display:flex;flex-direction:column;border-left:1px solid #ffffff88;padding-left:22px;line-height:1.3}.contact-phone small{font-size:15px;color:#e1ecff}.contact-phone strong{font-size:32px;font-weight:650;letter-spacing:.01em;margin-top:4px}.contact-phone:hover strong{text-decoration:underline;text-underline-offset:6px}.site-footer{background:var(--ink);color:#fff;padding-top:58px}.footer-main{display:grid;grid-template-columns:1.45fr .7fr 1fr;gap:60px;padding-bottom:48px}.footer-logo{display:block;width:238px;border-radius:4px;background:white;margin-bottom:22px;overflow:hidden}.footer-logo img{width:100%;height:auto}.footer-brand h2{font-size:18px;font-weight:600}.footer-brand p{color:#a8bad4;font-size:14px;margin-top:8px}.footer-main h3{font-size:17px;font-weight:600;margin-bottom:17px}.footer-nav{display:flex;flex-direction:column;align-items:flex-start;gap:5px}.footer-nav h3{margin-bottom:12px}.footer-nav a,.footer-contact address{font-size:15px;color:#b9c8df;line-height:1.9;font-style:normal}.footer-nav a:hover,.footer-bottom a:hover{color:white;text-decoration:underline;text-underline-offset:5px}.footer-phone{display:flex;gap:16px;align-items:center;margin-top:15px;font-size:16px}.footer-phone button{color:#c4d5f2;background:transparent;border:1px solid #4b5c74;border-radius:4px;padding:4px 10px;font-size:12px;line-height:1.6}.footer-phone button:hover{border-color:#c4d5f2;background:#ffffff08}.footer-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid #34445c;color:#91a6c6;font-size:13px;padding-block:24px}.back-to-top{position:fixed;bottom:28px;right:28px;z-index:30;display:flex;align-items:center;justify-content:center;width:45px;height:45px;border:1px solid #d9e3f4;border-radius:8px;background:white;color:var(--blue);box-shadow:0 3px 14px #13223b0c;opacity:0;pointer-events:none;transform:translateY(12px);transition:opacity .25s,transform .25s}.back-to-top .icon{transform:rotate(-90deg);width:21px;height:21px}.back-to-top.visible{opacity:1;pointer-events:auto;transform:none}.back-to-top:hover{background:#eef5ff}
@media(min-width:1700px){.hero{min-height:680px;background-position:center 38%}.hero h1{font-size:72px}.hero-content{padding-block:100px}}
@media(max-width:1180px){.main-nav{gap:26px}.header-inner{gap:25px}.brand{width:215px}.hero{min-height:560px}.hero h1{font-size:55px}.hero p{font-size:16px;max-width:475px}.capability-list>div{padding-left:26px}.capability-list h2{font-size:18px}.capability-list p{font-size:12px}.industry-panel{gap:40px}.industry-tab{font-size:16px;gap:10px}.industry-content h3{font-size:28px}.industry-content>p{font-size:16px}.industry-features li{font-size:13px;gap:8px}.service-intro{gap:20px;min-height:130px}.service-intro h3{font-size:21px}.service-intro .service-icon{width:46px;height:46px}.service-card{padding:30px 26px 10px}.about-grid{gap:44px}.company-intro{padding-right:40px}.iso-list span{font-size:12px}.footer-main{gap:40px}}
@media(max-width:900px){html{scroll-padding-top:76px}.header-inner{height:76px}.brand{width:210px}.menu-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:42px;height:42px;border:1px solid #dce4ee;border-radius:6px;background:white;padding:10px;color:var(--ink)}.menu-toggle span{width:20px;height:2px;background:currentColor;transition:transform .2s,opacity .2s}.menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.main-nav{display:none;position:absolute;top:100%;left:0;right:0;padding:15px var(--gutter) 24px;background:white;box-shadow:0 15px 20px #13223b08;align-items:stretch;gap:0}.main-nav.is-open{display:flex;flex-direction:column}.main-nav>a:not(.button){padding:13px 2px;border-bottom:1px solid #edf1f7}.main-nav>a:not(.button)::after{display:none}.main-nav .nav-contact{margin-top:18px;max-width:180px}.hero{min-height:510px;background-position:54% center}.hero h1{font-size:48px}.hero p{max-width:420px;font-size:15px}.desktop-break{display:none}.hero-actions{gap:14px;margin-top:30px}.hero-actions .button{padding:12px 20px;min-width:0;font-size:14px}.hero-actions .icon{width:20px;height:20px}.capability-list{grid-template-columns:repeat(2,1fr);gap:28px 30px;padding-block:32px}.capability-list>div:nth-child(odd){border-left:0;padding-left:22px}.capability-list h2{font-size:19px}.capability-list p{font-size:14px}.section{padding-block:64px}.section-heading{margin-bottom:34px}.section-heading h2{font-size:31px}.section-heading p{font-size:16px}.industry-tabs{gap:0}.industry-tab{font-size:14px;padding:16px 6px;gap:8px}.industry-tab .icon{width:24px;height:24px}.industry-panel{gap:30px;padding-top:32px}.industry-content h3{font-size:26px}.industry-content>p{font-size:14px}.industry-features{grid-template-columns:1fr;gap:10px;margin-top:20px;min-height:0}.industry-features li{font-size:14px}.industry-visual{aspect-ratio:.85}.text-link{font-size:14px;margin-top:24px}.industry-content h3::after{margin-top:12px}.service-grid{gap:20px}.service-card{padding:26px 22px 6px}.service-intro{display:block;min-height:205px}.service-intro .service-icon{margin-bottom:20px}.service-intro h3{font-size:22px}.service-list li{font-size:15px;gap:17px;padding:18px 0}.about-section{padding-top:10px}.about-grid{gap:30px}.company-intro{padding-right:26px}.founded-year{font-size:80px}.credentials li{font-size:15px;gap:12px}.credentials h3{font-size:24px}.company-intro h3{font-size:25px}.company-intro p{font-size:15px}.iso-list{grid-template-columns:repeat(3,1fr);gap:28px 0}.iso-list li:nth-child(4){border-left:0}.iso-list li:first-child{align-items:center;padding-left:14px}.iso-list strong{font-size:21px}.iso-list span{font-size:12px}.contact-section{padding-block:60px}.contact-section h2{font-size:42px}.contact-section>div>p{font-size:16px}.footer-main{gap:30px;grid-template-columns:1.2fr .6fr 1fr}.footer-logo{width:205px}.footer-brand h2{font-size:15px}.footer-brand p,.footer-nav a,.footer-contact address{font-size:13px}.footer-main h3{font-size:16px}.footer-phone{flex-wrap:wrap;gap:8px;font-size:14px}}
@media(max-width:600px){:root{--gutter:22px}.header-inner{height:72px}.brand{width:202px;margin-left:-10px}.hero{min-height:680px;align-items:flex-start;background-size:auto 430px;background-position:64% bottom;background-color:#e8f3ff}.hero-content{padding-block:44px 335px}.hero h1{font-size:39px;line-height:1.42;letter-spacing:-.04em}.hero p{font-size:14px;line-height:1.9;margin-top:19px;max-width:350px}.hero-actions{margin-top:24px;gap:12px}.hero-actions .button{font-size:14px;padding:12px 17px;min-height:47px;gap:12px}.hero-actions .button-outline{background:#f2f7ff88}.capability-list{padding-block:29px;gap:26px 16px}.capability-list>div{padding-left:18px}.capability-list>div:nth-child(odd){padding-left:15px}.capability-list h2{font-size:16px;letter-spacing:0}.capability-list h2::before{height:14px;width:3px;left:-11px;top:5px}.capability-list p{font-size:11px;letter-spacing:-.025em;margin-top:6px;white-space:nowrap}.section{padding-block:48px}.section-heading h2{font-size:27px;line-height:1.55;letter-spacing:-.02em;text-wrap:balance}.section-heading h2::after{width:34px;height:3px;margin-top:14px}.section-heading p{font-size:14px;line-height:1.8;margin-top:12px}.section-heading{margin-bottom:25px}.industry-tabs{grid-template-columns:repeat(2,1fr);border-bottom:0;gap:0 16px}.industry-tab{justify-content:flex-start;font-size:14px;padding:13px 1px 14px;border-bottom:1px solid #cbd8ec;gap:10px}.industry-tab .icon{width:25px;height:25px}.industry-tab::after{bottom:-1px}.industry-panel{display:flex;flex-direction:column;gap:28px;padding-top:28px}.industry-visual{width:100%;aspect-ratio:1.25;border-radius:9px}.industry-content{width:100%;padding:0}.industry-number{font-size:13px}.industry-content h3{font-size:26px;margin-top:5px}.industry-content>p{min-height:0;font-size:14px;line-height:1.9;margin-top:17px}.industry-features{grid-template-columns:1fr 1fr;gap:18px 10px;margin-top:24px}.industry-features li{font-size:12px;gap:6px}.feature-check .icon{width:20px;height:20px}.text-link{margin-top:26px;font-size:14px}.service-grid{grid-template-columns:1fr;gap:18px}.service-card{padding:25px 23px 7px}.service-intro{display:flex;gap:20px;min-height:0}.service-intro .service-icon{width:42px;height:42px;margin:1px 0 0}.service-intro h3{font-size:20px}.service-intro p{font-size:13px;margin-top:9px}.service-list{margin-top:22px}.service-list li{font-size:14px;gap:20px;padding:16px 2px}.service-list .icon{width:25px;height:25px}.about-section{padding-top:8px;padding-bottom:52px}.about-section .section-heading{margin-bottom:32px}.about-grid{grid-template-columns:1fr;gap:32px}.company-intro{border-right:0;padding-right:0}.founded-year{font-size:82px}.company-intro h3{font-size:24px;margin-top:10px}.company-intro p{font-size:14px;margin-top:17px;line-height:1.95}.credentials{border-top:1px solid var(--line);padding-top:24px}.credentials h3{font-size:23px;margin-bottom:8px}.credentials li{font-size:15px;padding:12px 0;gap:14px}.credentials .icon{width:23px;height:23px}.certifications{margin-top:28px;padding-top:24px}.certification-heading h3{font-size:22px}.certification-heading>span{font-size:11px}.iso-list{grid-template-columns:repeat(2,1fr);gap:22px 0;margin-top:25px}.iso-list li{padding:5px 8px;gap:6px}.iso-list li:nth-child(odd){border-left:0}.iso-list li:nth-child(4){border-left:1px solid var(--line)}.iso-list strong{font-size:18px}.iso-list span{font-size:11px}.iso-list li:last-child{grid-column:1/-1;border-left:0;align-items:flex-start;padding:18px 0 0;border-top:1px solid var(--line)}.contact-section{padding-block:47px 50px}.contact-section h2{font-size:31px;line-height:1.55}.contact-section>div>p{font-size:14px;line-height:1.9;margin-top:15px;max-width:300px}.contact-actions{align-items:flex-start;flex-direction:column;gap:26px;margin-top:27px}.button-white{min-height:48px;min-width:170px;font-size:14px;padding:12px 22px}.contact-phone{gap:17px}.contact-phone>.icon{width:28px;height:28px}.contact-phone>span{padding-left:17px}.contact-phone small{font-size:12px}.contact-phone strong{font-size:27px}.site-footer{padding-top:37px}.footer-main{grid-template-columns:.7fr 1fr;gap:30px 24px;padding-bottom:32px}.footer-brand{grid-column:1/-1}.footer-logo{width:220px;margin-bottom:18px}.footer-brand h2{font-size:16px}.footer-brand p{font-size:13px}.footer-nav h3,.footer-contact h3{font-size:15px}.footer-nav a,.footer-contact address{font-size:12px;line-height:2}.footer-contact address br{display:none}.footer-phone{font-size:14px}.footer-phone button{font-size:11px}.footer-bottom{flex-direction:column;gap:7px;font-size:11px;padding-block:21px}.back-to-top{width:40px;height:40px;right:17px;bottom:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.industry-visual:hover img{transform:none}}
/* Final desktop alignment with the visual concept. */
@media(min-width:1181px){.main-nav{flex:1;justify-content:space-between;margin-left:80px;gap:32px}.main-nav>a{font-size:17px}.main-nav>.button{font-size:15px}.hero{min-height:640px}.hero h1{font-size:clamp(64px,5.4vw,82px);line-height:1.3}.hero p{font-size:20px;max-width:620px}.hero-actions .button{font-size:17px;min-width:220px}.hero-actions .button-outline{min-width:190px}.capability-list{padding-block:44px}.capability-list h2{font-size:23px}.capability-list p{font-size:15px}}
.award-tick{stroke:#fff;stroke-width:2;fill:none}
@media(max-width:600px){.hero{background-image:none}.hero::after{content:"";position:absolute;z-index:-1;left:0;right:0;bottom:0;height:430px;background:url("assets/hero-city.webp") 64% bottom/auto 430px no-repeat;mask-image:linear-gradient(to bottom,transparent,#000 70px);-webkit-mask-image:linear-gradient(to bottom,transparent,#000 70px)}}