:root{--ink:#102b43;--muted:#526778;--blue:#2c6c99;--cool:#dbeaf3;--warm:#b8533f;--line:#d4dfe6;--pale:#f1f5f7;--paper:#fff;--space:clamp(60px,8vw,120px)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,'Noto Sans','Microsoft YaHei','PingFang HK',sans-serif;font-size:16px;line-height:1.65}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.12;font-weight:500}h1{font-size:clamp(2.7rem,5.2vw,5.25rem);letter-spacing:-.05em}h2{font-size:clamp(2rem,3.4vw,3.5rem);letter-spacing:-.035em}h3{font-size:1.45rem;letter-spacing:-.02em}p{color:var(--muted)}p+p{margin-top:1rem}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid 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.button{margin-top:23px;width:100%}button:disabled{opacity:.65;cursor:wait}#form-status{font-size:.875rem;margin-top:18px}#form-status.error{color:#9d2f2a}.legal-body{max-width:900px;padding-bottom:90px}.legal-body article{padding:32px 0;border-top:1px solid var(--line)}.legal-body h2{font-size:1.6rem;margin-bottom:18px}footer{border-top:1px solid var(--line);padding:55px 0 25px}.footer-main{display:grid;grid-template-columns:1.2fr .75fr 1fr;gap:70px}.footer-main p{font-size:.875rem;max-width:320px;margin-top:18px}.footer-main .legal-name{font-size:.8125rem}.footer-nav,.footer-contact{display:flex;flex-direction:column;align-items:start;gap:12px;font-size:.875rem}.footer-contact>a{overflow-wrap:anywhere}.footer-contact .languages{margin-top:20px}.footer-bottom{border-top:1px solid var(--line);margin-top:45px;padding-top:25px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.75rem;color:var(--muted)}.footer-bottom>div{display:flex;gap:24px}.preview-label{color:#607080}.skip-link{position:fixed;top:-70px;left:15px;padding:10px;background:var(--ink);color:white;z-index:60}.skip-link:focus{top:10px}html[lang^=zh] h1{letter-spacing:-.035em;line-height:1.2}html[lang^=zh] h2{line-height:1.25}html[lang^=zh] .eyebrow{letter-spacing:.09em}
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@media(max-width:1180px){.header-inner{gap:22px}#primary-nav{gap:16px}#primary-nav a{font-size:.8125rem}.header-inner>.languages{gap:8px}.header-inner>.languages a+a{padding-left:8px}.wordmark{font-size:1.55rem}.home-hero{gap:35px}.people{gap:35px}.person{grid-template-columns:110px 1fr;gap:20px}.person img{width:110px;height:155px}.person h3{font-size:1.35rem}.contact-layout{gap:55px}}
@media(max-width:1000px){.header-inner{min-height:76px;flex-wrap:wrap;gap:18px}.menu-toggle{display:block;margin-left:auto;border:0;background:transparent;width:42px;height:42px;padding:10px;order:3}.menu-toggle span{display:block;height:2px;background:var(--ink);margin:6px 0}.header-inner>.languages{margin-left:auto}#primary-nav{display:none;order:4;width:100%;flex-direction:column;align-items:stretch;gap:0;margin:0;padding-bottom:18px}#primary-nav.open{display:flex}#primary-nav a{font-size:1rem;padding:12px 0}#primary-nav a[aria-current=page]:after{bottom:5px;right:auto;width:30px}.home-hero{padding-top:55px}.hero-image{padding:20px}.hero-image img{height:260px}.actions{gap:18px}.section-heading,.solution-line{gap:45px}.person{grid-template-columns:1fr}.person img{width:180px;height:220px}.people{gap:50px}.targets{gap:45px}.stats>div{padding-inline:22px}.footer-main{gap:35px}.split{gap:45px}.main-path{gap:15px}.system-diagram{padding:30px}}
@media(max-width:700px){:root{--space:60px}.wrap{width:88%}.header-inner{width:90%;gap:8px}.wordmark{font-size:1.65rem}.header-inner>.languages{font-size:.8125rem;gap:7px}.header-inner>.languages a+a{padding-left:7px}.menu-toggle{margin-left:4px;width:36px}.home-hero{grid-template-columns:1fr;gap:38px;padding:42px 0 36px}.home-hero h1{font-size:3.15rem}.home-hero .eyebrow{font-size:.68rem;letter-spacing:.1em}.hero-copy h1{margin-bottom:22px}.hero-image{padding:18px}.hero-image img{height:auto;max-height:290px}.actions{align-items:flex-start;gap:15px}.spec-section{padding-bottom:38px}.specs{padding:20px 0}.specs>div{padding-left:15px}.specs strong{font-size:1.7rem}.specs small{font-size:.875rem;margin-left:3px}.specs span{font-size:.75rem;line-height:1.5}.section-heading{display:block;margin-bottom:30px}.section-heading>.lead{margin-top:25px}.solution-line{grid-template-columns:1fr;gap:20px}.feature-grid{grid-template-columns:1fr}.feature-grid article,.feature-grid article+article{border-left:0;padding:25px 0}.index{margin-bottom:18px}.feature-grid h3{font-size:1.5rem}.stats{grid-template-columns:1fr 1fr;gap:22px 0;padding:25px 0}.stats>div{padding:0 18px}.stats>div:nth-child(odd){padding-left:0;border:0}.stats strong{font-size:2.85rem}.stats span{font-size:.8125rem;margin-top:8px}.evidence-bottom{display:block}.evidence-bottom a{margin-top:18px}.wide-trial img{height:280px}.status-grid{grid-template-columns:1fr}.status-grid article,.status-grid article+article{padding:28px 0;border-left:0}.status-grid article+article{border-top:1px solid var(--line)}.status-grid h3{font-size:1.65rem}.targets{display:block}.targets ol{margin-top:32px}.targets li{font-size:1rem}.people{grid-template-columns:1fr;gap:36px}.person{grid-template-columns:115px 1fr;gap:22px}.person img{width:115px;height:160px}.person h3{font-size:1.4rem;margin-top:3px}.person .role{margin-bottom:12px}.person p:not(.role){font-size:.875rem}.cta{padding:55px 0}.cta>.wrap{display:block}.cta h2{font-size:2.15rem}.cta .button{margin-top:30px}.page-intro{padding:45px 0 38px}.page-intro h1{font-size:2.6rem}.lead{font-size:1.05rem}.split{grid-template-columns:1fr;gap:35px}.wrap-image{padding:20px}.wrap-image img{height:220px}.main-path{flex-direction:column}.main-path>div{width:100%;min-height:75px;padding:20px}.main-path b{transform:rotate(90deg)}.control-path{gap:12px}.control-path span{padding:10px 5px;font-size:.875rem}.system-diagram{padding:24px}.roadmap{grid-template-columns:1fr 1fr;gap:35px 15px}.roadmap li{padding:18px 10px 0 0}.roadmap h3{font-size:1rem}.validation-photo img{height:290px}.limits-grid{grid-template-columns:1fr;gap:38px}.secondary-stats strong{font-size:2.35rem}.method{margin-top:40px}.contact-layout{grid-template-columns:1fr;gap:40px;padding-bottom:60px}form{padding:25px 20px}.footer-main{grid-template-columns:1fr 1fr;gap:35px}.footer-main>div:first-child{grid-column:1/-1}.footer-contact{font-size:.8125rem}.footer-bottom{display:block}.footer-bottom>div{margin:20px 0}.preview-label{display:block}.legal-body{padding-bottom:55px}html[lang^=zh] .home-hero h1{font-size:2.7rem}}
.wide-trial img{height:auto;object-fit:contain}.ergonomics-image img{height:420px;object-fit:contain;background:transparent}.ergonomics-image{background:var(--pale)}@media(max-width:700px){.ergonomics-image img{height:auto;max-height:420px}}
.news-empty{min-height:38vh;padding:50px 0 100px;border-top:1px solid var(--line)}.news-empty h2{font-size:1.65rem;margin-bottom:18px}.news-empty p{font-size:1rem}
.careers-hero{background:var(--ink);color:white;text-align:center;padding:85px 0 90px}.careers-hero h1{font-size:clamp(3rem,5vw,4.5rem)}.careers-hero p{color:#d2e0e9;font-size:clamp(1.125rem,2vw,1.5rem);max-width:860px;margin:26px auto 0;line-height:1.7}.talent-section>h2,.careers-openings>h2{text-align:center;font-size:clamp(1.8rem,3vw,2.5rem)}.talent-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:44px}.talent-value{padding:30px 24px;border:1px solid var(--line);background:var(--paper)}.talent-value>span{display:block;color:var(--blue);font-size:.875rem;letter-spacing:.08em;margin-bottom:27px}.talent-value h3{font-size:1.35rem;line-height:1.3;margin-bottom:18px}.talent-value p{font-size:1rem;line-height:1.8}.careers-openings{border-top:1px solid var(--line);padding:55px 0 70px;text-align:center}.careers-openings>p{font-size:1.125rem;margin-top:25px}
@media(max-width:1000px){.talent-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.careers-hero{padding:58px 0 62px}.talent-grid{grid-template-columns:1fr;gap:18px;margin-top:30px}.talent-value{padding:26px}.talent-value>span{margin-bottom:18px}.careers-openings{padding:42px 0 50px}}
.company-timeline{list-style:none;padding:0;margin:55px 0 0;max-width:1080px}.company-timeline li{display:grid;grid-template-columns:190px 1fr;gap:65px;position:relative;padding:0 0 60px}.company-timeline li:last-child{padding-bottom:0}.company-timeline li:before{content:'';position:absolute;left:217px;top:20px;bottom:-20px;border-left:1px solid var(--line)}.company-timeline li:last-child:before{display:none}.company-timeline li:after{content:'';position:absolute;left:211px;top:18px;width:13px;height:13px;border:3px solid var(--blue);border-radius:50%;background:white}.company-timeline time{font-size:3.5rem;line-height:1;letter-spacing:-.055em;color:var(--blue)}.company-timeline h3{font-size:1.75rem;margin:7px 0 20px}.company-timeline p{max-width:760px;font-size:1rem;line-height:1.85}.careers-layout{display:grid;grid-template-columns:1.35fr 1fr;gap:80px;align-items:center}.careers-layout h2{font-size:clamp(1.8rem,3vw,2.6rem);margin-bottom:25px}.careers-layout .lead{max-width:640px}.careers-apply{display:flex;flex-direction:column;align-items:flex-start;gap:25px;border-left:1px solid var(--line);padding-left:45px}.careers-email{font-size:1.25rem;overflow-wrap:anywhere;border-bottom:1px solid var(--line)}
@media(min-width:1001px) and (max-width:1280px){.header-inner{gap:14px}#primary-nav{gap:12px}#primary-nav a{font-size:.75rem}.header-inner .wordmark{font-size:1.4rem}.header-inner>.languages{gap:6px}.header-inner>.languages a+a{padding-left:6px}}
@media(max-width:700px){.company-timeline{margin-top:38px;padding-left:24px}.company-timeline li{grid-template-columns:1fr;gap:12px;padding-bottom:42px}.company-timeline li:before{left:-22px;top:13px;bottom:-13px}.company-timeline li:after{left:-28px;top:10px}.company-timeline time{font-size:2.5rem}.company-timeline h3{font-size:1.5rem;margin:5px 0 15px}.careers-layout{grid-template-columns:1fr;gap:32px}.careers-apply{border-left:0;border-top:1px solid var(--line);padding:28px 0 0}.careers-email{font-size:1.1rem}}
.people.people-text{grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}.person.person-text{display:block;border-top:2px solid var(--blue);padding:28px 0 0;min-width:0}.person.person-text h3{font-size:1.6rem;line-height:1.3;margin:0 0 10px;letter-spacing:-.015em;overflow-wrap:anywhere}.person.person-text .role{margin:0 0 22px;font-size:.9375rem}.person.person-text p:not(.role){font-size:1rem;line-height:1.8}
@media(max-width:900px){.people.people-text{grid-template-columns:1fr;gap:32px}.person.person-text{padding-top:24px}.person.person-text .role{margin-bottom:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.email-contact{background:var(--pale);padding:40px;min-width:0;align-self:start}.email-contact h2{font-size:clamp(1.8rem,3vw,2.6rem);margin-bottom:24px}.contact-email{display:block;font-size:clamp(1.05rem,2vw,1.5rem);font-weight:700;overflow-wrap:anywhere;margin-bottom:22px}.email-contact .button{margin-top:28px}.email-contact .fineprint{font-size:.875rem}.footer-contact a{overflow-wrap:anywhere}.legal-body p{overflow-wrap:anywhere}@media(max-width:700px){.email-contact{padding:28px 22px}}