/* Source: assets/site.css */

:root{--ys-blue:#2997ff;--ys-ink:#121318;--ys-nav:64px;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif}a{text-decoration:none;color:inherit}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #2997ff;outline-offset:4px}button{touch-action:manipulation}.ys-header{position:sticky;top:0;height:var(--ys-nav);width:100%;z-index:100;background:#0c0d10ed;border-bottom:1px solid #ffffff15;backdrop-filter:blur(24px);color:#f5f5f7}.ys-nav-inner{height:100%;max-width:1320px;padding:0 40px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}.ys-brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;font-size:19px;font-weight:650;letter-spacing:1px;line-height:1}.ys-brand img{width:26px;height:25px;object-fit:contain}.ys-brand small{margin-left:2px;color:#a8a9b2;font-size:10px;letter-spacing:2px;font-weight:500}.ys-links{display:flex;align-items:center;gap:34px;font-size:14px}.ys-links a{color:#b9b9c0;transition:color .2s}.ys-links a:hover,.ys-links a[aria-current]{color:#fff}.ys-links .ys-nav-cta{background:#fff;color:#121318;border-radius:24px;padding:9px 17px;font-size:13px}.ys-footer{background:#f5f5f7;color:#73737c;padding:30px 40px;font-size:13px}.ys-footer-inner{max-width:1240px;margin:auto;display:flex;justify-content:space-between;gap:20px}.ys-footer a:hover{color:#111}.ys-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;border:0;border-radius:28px;background:#0071e3;color:white;padding:14px 27px;font-size:16px;line-height:1.3;transition:background .2s,transform .2s}.ys-button:hover{background:#1683f1;transform:translateY(-1px)}.ys-link{display:inline-flex;align-items:center;gap:10px;color:#2997ff;font-size:16px}.ys-link:hover{text-decoration:underline}.ys-wrap{width:min(1240px,calc(100% - 80px));margin:auto}
@media(max-width:680px){:root{--ys-nav:58px}.ys-nav-inner{padding:0 20px;gap:16px}.ys-brand{font-size:17px;gap:8px}.ys-brand small{display:none}.ys-brand img{width:23px;height:22px}.ys-links{gap:17px;font-size:13px}.ys-links .ys-nav-about{display:none}.ys-links .ys-nav-cta{padding:8px 12px;font-size:12px}.ys-wrap{width:calc(100% - 40px)}.ys-footer{padding:26px 20px}.ys-footer-inner{flex-direction:column;gap:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

.ys-brand img.ys-official-logo{width:132px;height:32px;filter:brightness(0) invert(1)}@media(max-width:680px){.ys-brand img.ys-official-logo{width:108px;height:26px}.ys-links{gap:14px}}

/* Source: assets/design-system.css */
/* Typography and spacing reference: Apple China iPhone overview, checked 2026-09-21.
   Super headline 80/64/48, body 17/25, section-heading gap 48/32.
   Native system fonts are used; no Apple font files are redistributed. */
:root{--ys-nav:52px;--type-super:80px;--type-section:48px;--type-card:28px;--space-section:120px;--space-head:48px;--text-primary:#f5f5f7;--text-secondary:#a1a1a6;--text-tertiary:#86868b;--layout-width:1260px;--page-gutter:6.25vw;color-scheme:dark}body{font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;font-size:17px;line-height:1.47059;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,p{overflow-wrap:break-word}h1,h2,h3{font-weight:600;letter-spacing:0;text-wrap:balance}p{text-wrap:pretty}button{letter-spacing:0}.ys-wrap{width:min(var(--layout-width),calc(100% - var(--page-gutter)*2))}.ys-nav-inner{max-width:1340px;padding:0 var(--page-gutter)}.ys-brand img.ys-official-logo{width:112px;height:28px}.ys-links{font-size:12px;gap:36px}.ys-links .ys-nav-cta{font-size:12px;padding:6px 14px}.ys-header{border-bottom:1px solid #ffffff12;background:#08090ce6}.ys-button,.pill-primary,.pill-secondary{font-size:17px;line-height:1.17648;padding:12px 22px;min-height:44px;border-radius:980px;gap:10px}.ys-link{font-size:17px;line-height:1.47}.eyebrow,.overline,.section-eyebrow{font-size:14px;line-height:1.4286;letter-spacing:0;font-weight:500;color:var(--text-secondary)}
.ys-home .hero{min-height:730px;height:calc(100svh - 52px);max-height:980px}.ys-home .hero-copy{width:46%;padding-left:max(var(--page-gutter),calc((100vw - 1260px)/2));top:25%;text-align:left}.ys-home .hero-copy h1{font-size:var(--type-super);line-height:1.1;letter-spacing:-.015em;font-weight:600;margin:0;white-space:nowrap}.ys-home .hero-copy h1 span{color:#f5f5f7;background:none}.ys-home .hero .eyebrow{font-size:17px;letter-spacing:0;color:#a1a1a6;margin:0 0 24px}.ys-home .hero-intro{font-size:21px;line-height:1.45;letter-spacing:0;max-width:390px;margin:28px 0 32px;color:#a1a1a6}.ys-home .hero-actions{justify-content:flex-start;gap:24px}.ys-home .hero-actions .ys-button,.ys-home .hero-actions .ys-link{font-size:17px}.ys-home .raptor-local{left:43%!important;bottom:50px!important}.ys-home .hero-bottom{left:var(--page-gutter);right:var(--page-gutter);bottom:38px}.hero-caption strong{font-size:14px;font-weight:500}.hero-caption div>span{font-size:12px}.hero-controls button{font-size:12px;min-height:36px;padding:8px 14px}.raptor-credit{left:var(--page-gutter)!important;bottom:10px!important;font-size:11px!important}.model-edition{font-size:11px;top:36px;left:18%}.raptor-side-controls{right:30px}.raptor-side-controls button{font-size:12px;padding:12px}.part-info{font-size:14px}.part-info p{font-size:14px;line-height:1.57}.raptor-parts button{font-size:11px}.hero-copy .hero-actions .ys-button{padding:12px 22px}
.intro-band{padding:var(--space-section) 0;background:#101114;text-align:center}.intro-band .ys-wrap{max-width:980px}.intro-band p{font-size:21px;line-height:1.4;margin:0 0 24px;color:#86868b}.intro-band h2{font-size:var(--type-section);line-height:1.18;font-weight:600;letter-spacing:0;margin:0 auto 40px;max-width:860px}.intro-points{font-size:17px;color:#b9b9bf;gap:48px}.products{padding:var(--space-section) 0}.section-heading{margin-bottom:var(--space-head);gap:64px}.section-heading h2{font-size:var(--type-section);line-height:1.15;letter-spacing:0;font-weight:600}.section-heading .eyebrow{margin:0 0 20px}.section-heading>p{font-size:17px;line-height:1.6;color:#a1a1a6;max-width:340px;margin:0 0 4px}.ship-feature{height:640px;border-radius:28px}.ship-feature-copy{left:48px;top:48px;max-width:380px}.product-tag{font-size:14px;letter-spacing:0;color:#aebccc}.ship-feature h3{font-size:48px;line-height:1.17;margin:18px 0 24px;letter-spacing:0}.ship-feature p{font-size:24px;line-height:1.4;margin:0 0 32px;color:#d2dbe3}.ship-feature-bottom{left:48px;right:48px;bottom:32px;font-size:14px;padding-top:24px;gap:32px}.product-next{gap:24px;margin-top:24px}.product-next article{padding:40px;min-height:510px;border-radius:28px}.product-next h3{font-size:32px;line-height:1.2;margin:16px 0 20px;letter-spacing:0;max-width:340px}.product-next p{font-size:17px;line-height:1.6;max-width:340px;color:#a1a1a6}.product-next .ys-link{margin-top:10px}.energy-card img{width:430px;right:-60px;bottom:-30px;opacity:.88}.material-card img{position:absolute;width:100%;height:250px;bottom:0;left:0;object-fit:cover;object-position:center;opacity:.72;mask-image:linear-gradient(transparent,#000 35%)}.material-card .ys-link{position:relative;z-index:2}.material-word{font-size:76px;bottom:32px;letter-spacing:-3px;color:#a7d9ef12}.about-section{padding:var(--space-section) 0}.about-grid{grid-template-columns:1fr 1fr;gap:100px}.about-section h2,.contact-section h2{font-size:var(--type-section);line-height:1.18;letter-spacing:0}.about-copy p{font-size:21px;line-height:1.6;color:#6e6e73}.about-copy p+p{font-size:17px;line-height:1.6}.about-copy>span{font-size:12px}.contact-section{padding:var(--space-section) 0;gap:80px}.contact-address{min-width:310px}.contact-address p{font-size:24px;line-height:1.6;margin:24px 0}.contact-address>span{font-size:12px;letter-spacing:.08em}.contact-address a{font-size:17px}
.breadcrumbs-ys{font-size:12px;padding:24px 0}.product-hero{grid-template-columns:40% 60%;min-height:650px}.product-hero-copy{padding:32px 0 64px}.product-hero h1{font-size:56px;line-height:1.15;letter-spacing:0;margin:24px 0}.product-intro{font-size:21px;line-height:1.52;max-width:360px;margin:24px 0 32px;color:#a1a1a6}.product-micro{font-size:12px;line-height:1.5;margin-top:16px;color:#86868b}.product-hero .showroom{height:620px;margin-right:0}.lesson-highlights{padding:var(--space-section) 0}.lesson-highlights>h2,.product-next-course h2{font-size:var(--type-section);line-height:1.18;letter-spacing:0;margin:20px 0 var(--space-head)}.lesson-cards{gap:24px}.lesson-cards article{padding:32px;border-radius:24px;min-height:270px}.lesson-cards h3{font-size:28px;line-height:1.14;letter-spacing:0;font-weight:600;margin:32px 0 16px}.lesson-cards p{font-size:17px;line-height:1.55;color:#a1a1a6}.lesson-cards a{font-size:14px;margin-top:24px}.product-next-course{padding:80px 0 120px}.product-next-course h2{margin:20px 0}.product-next-course p:not(.overline){font-size:17px;line-height:1.55;color:#a1a1a6}.content-main>h1{font-size:64px;line-height:1.125;letter-spacing:0;margin:24px 0 32px}.content-main>.overline{margin-top:80px}.content-lead{font-size:24px;line-height:1.5;color:#a1a1a6;max-width:800px}.experience-directory{gap:24px;margin-top:64px}.experience-directory article{padding:32px;border-radius:24px}.experience-directory h2{font-size:28px;line-height:1.2;letter-spacing:0;margin:40px 0 24px}.experience-directory p{font-size:17px;line-height:1.55;min-height:106px}.experience-directory article>span,.directory-tags span{font-size:12px}.experience-directory .pill-primary{font-size:14px;min-height:40px}.text-link{font-size:14px}.about-values{gap:48px;margin:96px 0 64px}.about-values h2{font-size:28px;line-height:1.2}.about-values p,.prose{font-size:17px;line-height:1.65}.prose h2{font-size:28px;font-weight:600;letter-spacing:0;margin-top:48px}.contact-place h2{font-size:32px}.contact-place p{font-size:21px}.content-main{padding-bottom:120px}
.experience-title-row h1{font-size:28px;line-height:1.14;font-weight:600;letter-spacing:0;margin:16px 0 24px}.experience-title-row h1 span,.experience-title-row>a{font-size:14px}.step-nav{gap:12px;margin-bottom:24px}.step-nav button{font-size:15px;line-height:1.3;min-height:52px;padding:14px 18px}.step-nav button>span{font-size:12px}.experience-layout{grid-template-columns:minmax(0,1fr) 340px;gap:24px}.experience-layout>.showroom{height:clamp(550px,calc(100svh - 260px),740px);border-radius:24px}.lesson-panel{padding:28px;border-radius:24px;background:#15191f}.lesson-panel h2{font-size:28px;line-height:1.25;font-weight:600;letter-spacing:0;margin:24px 0 16px}.lesson-panel>p{font-size:17px;line-height:1.55;color:#a1a1a6;margin-bottom:24px}.lesson-kicker,.scene-metric span{font-size:12px;letter-spacing:0}.scene-metric strong{font-size:24px;font-weight:600;letter-spacing:0}.scene-action{font-size:17px;min-height:48px;border-radius:12px;background:#0071e3}.scene-feedback{font-size:13px;line-height:1.55;margin-top:16px;min-height:60px}.lesson-bottom button,.lesson-bottom button:last-child{font-size:13px;min-height:28px}.range-control label{font-size:14px}.range-control input{height:4px;margin:12px 0}.range-control input::-webkit-slider-thumb{width:20px;height:20px}.scene-mode,.quiet-control,.lighting-label select,.scene-gesture{font-size:12px;letter-spacing:0}.scene-top-tools{left:20px;right:20px;top:20px}.scene-mode{color:#a0afbd}.scene-gesture{color:#8896a4}.experience-footnote{font-size:12px;line-height:1.6;padding:20px 0}.more-experiences{padding:80px 0}.more-experiences h2{font-size:32px;line-height:1.2;font-weight:600;letter-spacing:0;margin:0 0 32px}.more-experiences a{padding:28px}.more-experiences a>span{font-size:12px}.more-experiences strong{font-size:24px}.site-footer{background:#111113;padding:64px var(--page-gutter) 24px}.footer-content,.footer-legal{max-width:1260px}.footer-content{gap:48px;padding-bottom:48px}.footer-brand img{width:112px}.footer-brand p{font-size:17px;line-height:1.47}.footer-brand>span,.footer-column,.footer-column h3,.footer-legal,.footer-legal>div{font-size:12px;line-height:1.5}.footer-column{gap:12px}.footer-column h3{font-weight:600;color:#d2d2d7}.footer-legal{padding-top:24px;color:#86868b}.footer-legal>div{gap:24px}
@media(max-width:1200px){.ys-home .hero-copy h1{font-size:64px}.product-hero h1{font-size:48px}.experience-layout{grid-template-columns:minmax(0,1fr) 320px}.lesson-panel{padding:24px}.experience-directory .pill-primary{font-size:13px}.about-grid{gap:64px}}
@media(max-width:1068px){:root{--type-super:64px;--type-section:40px;--space-section:96px}.ys-home .hero-intro{font-size:19px}.ys-home .hero-actions{gap:18px}.ys-home .hero-actions .ys-button,.ys-home .hero-actions .ys-link{font-size:14px}.product-hero h1{font-size:40px}.product-intro{font-size:19px}.product-hero .showroom{height:560px}.content-main>h1{font-size:56px}.footer-content{gap:32px}.experience-layout{gap:18px;grid-template-columns:minmax(0,1fr) 305px}.lesson-panel{padding:24px}.lesson-panel>p{font-size:15px}.lesson-panel h2{font-size:24px}.scene-top-tools .scene-mode{font-size:11px}.quiet-control,.lighting-label select{font-size:11px}.ship-feature{height:580px}}
@media(max-width:900px){.ys-home .hero{height:1080px;max-height:none;min-height:0}.ys-home .hero-copy{position:relative!important;top:auto;width:100%;padding:56px 24px 0!important;text-align:center}.ys-home .hero-copy h1{font-size:64px}.ys-home .hero .eyebrow{font-size:14px;margin-bottom:20px}.ys-home .hero-intro{margin:24px auto;max-width:410px}.ys-home .hero-actions{justify-content:center}.ys-home .raptor-local{inset:350px 0 120px!important}.ys-home .hero-bottom{bottom:45px;flex-direction:row;gap:18px}.ys-home .raptor-credit{bottom:16px!important}.raptor-parts{bottom:10px}.part-info{bottom:85px}.model-edition{top:15px;left:24px}.section-heading>p{display:block;max-width:280px}.section-heading{gap:32px}.product-next article{padding:32px}.about-grid{gap:48px}.footer-content{grid-template-columns:1.5fr 1fr 1fr}.footer-address{grid-column:1/-1}.scene-top-tools{left:14px;right:14px}.scene-top-tools .scene-mode{font-size:10px}.scene-top-tools .scene-mode i{display:none}}
@media(max-width:734px){:root{--page-gutter:24px;--type-super:48px;--type-section:32px;--space-section:80px;--space-head:32px}.ys-nav-inner{padding:0 20px;gap:16px}.ys-brand img.ys-official-logo{width:96px;height:25px}.ys-links{gap:18px;font-size:12px}.ys-links .ys-nav-about{display:none}.ys-links .ys-nav-cta{padding:6px 10px;font-size:11px}.ys-home .hero{height:990px}.ys-home .hero-copy h1{font-size:48px;line-height:1.15}.ys-home .hero-intro{font-size:17px;line-height:1.5;max-width:320px}.ys-home .hero .eyebrow{font-size:14px}.ys-home .hero-actions .ys-button,.ys-home .hero-actions .ys-link{font-size:14px}.ys-home .raptor-local{inset:320px 0 125px!important}.ys-home .hero-bottom{flex-direction:column;bottom:48px;gap:16px}.hero-caption strong{font-size:13px}.hero-caption div>span{font-size:11px}.hero-controls button{font-size:12px;padding:8px 14px}.raptor-credit{font-size:10px!important}.raptor-side-controls{right:12px}.raptor-side-controls button{font-size:11px}.raptor-parts{left:16px;right:16px;gap:5px;bottom:6px}.raptor-parts button{font-size:10px;padding:7px 9px}.intro-band p{font-size:17px;margin-bottom:24px}.intro-band h2{line-height:1.3;margin-bottom:32px}.intro-points{font-size:14px;gap:28px}.intro-points span+span:before{left:-15px}.section-heading{display:block}.section-heading>p{font-size:17px;margin:24px 0 0;max-width:340px}.section-heading h2{line-height:1.2}.ship-feature{height:560px;border-radius:24px}.ship-feature-copy{left:28px;top:32px;right:24px}.ship-feature h3{font-size:40px;line-height:1.2;margin:16px 0 24px}.ship-feature p{font-size:21px;line-height:1.4}.ship-feature-bottom{left:28px;right:28px;bottom:28px;gap:14px;font-size:12px;padding-top:20px}.product-next{grid-template-columns:1fr;gap:24px;margin-top:24px}.product-next article{min-height:450px;padding:32px;border-radius:24px}.product-next h3{font-size:28px;line-height:1.2}.product-next p{font-size:17px}.product-next .energy-card img{width:380px;right:-70px;bottom:-25px}.about-grid{grid-template-columns:1fr;gap:40px}.about-copy p{font-size:19px;line-height:1.6}.about-copy p+p{font-size:17px}.contact-section{display:flex;flex-direction:column;align-items:flex-start;gap:40px}.contact-address{min-width:0}.contact-address p{font-size:21px}.product-hero{grid-template-columns:1fr;min-height:0}.product-hero-copy{padding:28px 0 32px}.product-hero h1{font-size:40px;line-height:1.2}.product-intro{font-size:19px;max-width:380px;margin:24px 0 32px}.product-hero .showroom{height:430px;margin:0 -8px}.lesson-cards{grid-template-columns:1fr;gap:16px}.lesson-cards article{min-height:0;padding:28px}.lesson-cards h3{font-size:24px}.lesson-cards p{font-size:17px;min-height:0}.product-next-course{padding:64px 0 80px;flex-direction:column;align-items:flex-start;gap:24px}.content-main>h1{font-size:40px;line-height:1.2}.content-main>.overline{margin-top:48px}.content-lead{font-size:21px;line-height:1.5}.experience-directory{grid-template-columns:1fr;gap:24px;margin-top:48px}.experience-directory article{padding:32px}.experience-directory h2{font-size:28px}.experience-directory p{min-height:0;font-size:17px}.about-values{grid-template-columns:1fr;gap:40px;margin:64px 0 48px}.about-values h2{font-size:24px}.content-main{padding-bottom:80px}.contact-place{grid-template-columns:1fr}.contact-place>div:last-child{padding:32px}.prose h2{font-size:24px}.experience-title-row h1{font-size:24px;margin:12px 0 24px}.experience-title-row h1 span{display:none}.experience-title-row>a{font-size:12px}.step-nav{gap:6px;margin-bottom:16px}.step-nav button{font-size:12px;padding:12px 8px;gap:6px;min-height:48px;border-radius:10px}.step-nav button>span{font-size:10px}.step-nav button i{display:none}.experience-layout{grid-template-columns:1fr;gap:16px}.experience-layout>.showroom{height:390px;border-radius:20px}.lesson-panel{padding:28px;display:flex}.lesson-panel h2{font-size:28px;margin:20px 0 16px}.lesson-panel>p{font-size:17px;line-height:1.55;margin-bottom:24px}.scene-metric{flex-direction:row;margin:0 0 24px;padding:0;align-items:baseline}.scene-metric strong{font-size:24px}.scene-metric span{font-size:12px}.scene-action{width:100%;font-size:17px}.scene-feedback{min-height:44px;font-size:13px}.range-control{margin-bottom:24px}.scene-mode,.scene-top-tools .scene-mode{font-size:11px}.scene-top-tools{top:15px;left:14px;right:14px}.quiet-control,.lighting-label select{font-size:11px;padding:8px 10px}.experience-footnote{flex-direction:column;font-size:12px;gap:8px}.experience-footnote>span{white-space:normal}.more-experiences{padding:64px 0}.more-experiences h2{font-size:28px}.more-experiences>div{grid-template-columns:1fr;gap:16px}.more-experiences strong{font-size:21px}.site-footer{padding-top:48px}.footer-content{grid-template-columns:1fr 1fr;gap:32px 20px;padding-bottom:32px}.footer-brand,.footer-address{grid-column:1/-1}.footer-legal{flex-direction:column;gap:16px}.footer-legal>div{flex-wrap:wrap;gap:12px 20px;font-size:12px}.footer-column h3{margin-bottom:4px}.footer-brand p{margin-top:24px}}
.power-chain{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:17px 12px;margin:0 0 24px;background:#21314366;border-radius:12px;font-size:14px;color:#d4e9fb}.power-chain i{font-style:normal;color:#6293ba}.hydro-controls{margin:0 0 24px}.hydro-controls .range-control{margin-bottom:17px}.hydro-controls .range-control label{margin-bottom:7px}.hydro-readouts{display:grid;grid-template-columns:1fr 1fr;gap:20px 12px;padding:20px 0;border-top:1px solid #ffffff12}.hydro-readouts div{display:flex;flex-direction:column;gap:8px}.hydro-readouts span{font-size:11px;color:#94a6b9}.hydro-readouts strong{font-size:20px;font-weight:500;color:#e4edf6;font-variant-numeric:tabular-nums}.technical-note{font-size:12px;line-height:1.65;color:#8a9db0}.technical-note summary{cursor:pointer;color:#afcae3;padding:10px 0}.technical-note p{margin:12px 0}.technical-note a{color:#81bef1}#hydro-warning{font-size:12px;color:#f0c799;line-height:1.6}.experience-layout{align-items:start}.lesson-panel{min-height:550px}.experience-layout>.showroom{position:sticky;top:76px}.lesson-panel .scene-metric{margin-top:12px}.hydro-controls sub{font-size:9px}.experience-page[data-course=ship] .lesson-panel>p{font-size:15px;line-height:1.6}.experience-page[data-course=ship] .lesson-panel h2{font-size:26px}.experience-page[data-course=ship] .range-control{margin-bottom:16px}
@media(max-width:734px){.experience-layout>.showroom{position:relative;top:auto}.lesson-panel{min-height:0}.hydro-readouts strong{font-size:24px}.hydro-readouts span{font-size:12px}.experience-page[data-course=ship] .lesson-panel>p{font-size:17px}.experience-page[data-course=ship] .lesson-panel h2{font-size:28px}}
.energy-card img{mask-image:linear-gradient(180deg,transparent,#000 20%);mix-blend-mode:normal;height:260px;width:100%;object-fit:cover;object-position:center 47%;bottom:0;right:0;opacity:.9}.material-card img{height:275px;object-fit:cover;object-position:50% 55%;opacity:.95;transform:scale(1.18);transform-origin:50% 100%}.energy-card>div{position:relative;z-index:2}.product-next p{position:relative;z-index:2}.material-card .product-tag,.material-card h3{position:relative;z-index:2}
.motor-synchronous{display:flex;align-items:center;justify-content:space-between;padding:0 0 15px}.motor-synchronous strong{font-size:21px;color:#dce9f5}.motor-synchronous span{font-size:12px}.motor-synchronous+details{margin:0 0 18px}
@media(max-width:734px){.ys-home .hero{height:1060px}.ys-home .raptor-local{top:380px!important}.model-edition{top:16px}.raptor-side-controls{top:40%}}
/* Keep explanatory content, remove ornamental caption hierarchy. */
.hero-bottom{justify-content:flex-end!important}.scene-top-tools{justify-content:flex-end}.lesson-panel>h2{margin-top:0}.content-main>h1{margin-top:80px}.footer-brand>span{display:block;margin-top:24px}.ys-home .products{border-top:1px solid #ffffff10}.about-section h2,.contact-section h2{margin-top:0}
@media(max-width:734px){.ys-home .hero{height:1010px}.ys-home .hero-bottom{bottom:28px;flex-direction:row;justify-content:center!important}.ys-home .raptor-local{bottom:95px!important}.content-main>h1{margin-top:48px}}

/* Supplied company symbol; keep original raster proportions and remove white through blending. */
.ys-brand img.ys-official-logo{width:44px;height:35px;object-fit:contain;filter:grayscale(1) invert(1);mix-blend-mode:screen}
.footer-brand img{width:56px;height:44px;object-fit:contain;filter:grayscale(1) invert(1);mix-blend-mode:screen}
@media(max-width:734px){.ys-brand img.ys-official-logo{width:39px;height:31px}}

/* Source: assets/corporate.css */
:root{--site-gutter:clamp(24px,5.6vw,80px)}
.ys-wrap,.ys-nav-inner{width:min(1260px,calc(100% - var(--site-gutter)*2));max-width:1260px;margin-inline:auto}.ys-nav-inner{padding:0}.ys-links{gap:30px}.nav-toggle{display:none}.ys-links a[aria-current=page]{color:#fff}.site-section{padding-block:120px}.section-intro{display:flex;justify-content:space-between;align-items:end;gap:48px;margin-bottom:48px}.section-intro h2,.closing-cta h2{font-size:clamp(34px,3.9vw,56px);line-height:1.15;margin:0;letter-spacing:-.025em}.section-intro>p{max-width:430px;font-size:19px;line-height:1.55;color:#a1a1a6;margin:0}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.course-card{overflow:hidden;background:#151518;border-radius:24px;display:flex;flex-direction:column;border:1px solid #ffffff08}.course-card-media{aspect-ratio:16/10;position:relative;background:radial-gradient(ellipse at 50% 70%,#24303b,#101318 80%);overflow:hidden}.course-card-media a{display:block;height:100%}.course-card-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .7s ease}.course-card:hover .course-card-media img{transform:scale(1.035)}.course-card[data-course-slot=energy] .course-card-media img,.course-card[data-course-slot=materials] .course-card-media img{object-fit:contain;padding:12px}.course-card-body{padding:28px;flex:1;display:flex;flex-direction:column}.course-category{font-size:12px;color:#a1a1a6;margin:0 0 12px}.course-card h3{font-size:27px;line-height:1.2;margin:0 0 18px}.course-summary{font-size:17px;line-height:1.55;color:#a1a1a6;margin:0 0 24px}.course-topics{display:flex;gap:6px 14px;flex-wrap:wrap;list-style:none;padding:0;margin:0 0 28px;font-size:12px;color:#c3c3c8}.course-card-actions{display:flex;align-items:center;gap:20px;margin-top:auto;font-size:14px}.course-card-actions a:first-child{color:#61b1ff}.course-card-actions a:last-child{color:#b8b8bd}.course-card-actions a:hover,.upcoming-link:hover{text-decoration:underline}.course-card 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p{font-size:19px;line-height:1.6;color:#a1a1a6;max-width:430px;margin:0 0 28px}.value-stories .text-link{font-size:17px}.teaching-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px}.teaching-grid article{padding-top:28px;border-top:1px solid #ffffff26}.teaching-grid h3{font-size:27px;margin:0 0 18px}.teaching-grid p{font-size:17px;line-height:1.65;color:#a1a1a6;margin:0;max-width:350px}.custom-preview{background:#101012}.workflow{list-style:none;padding:0;margin:56px 0 40px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px}.workflow li{border-top:1px solid #ffffff26;padding-top:24px}.workflow li>span{font-size:13px;color:#8d8d95;font-variant-numeric:tabular-nums}.workflow h3{font-size:23px;line-height:1.3;margin:28px 0 16px}.workflow p{font-size:16px;line-height:1.65;color:#a1a1a6;margin:0}.closing-cta{padding-block:120px;text-align:center}.closing-cta p{font-size:19px;color:#a1a1a6;margin:28px 0 32px}.site-footer .footer-content,.site-footer .footer-legal{max-width:1260px}.content-main{padding-top:12px;padding-bottom:100px}.content-main>h1{font-size:clamp(44px,5.2vw,72px);line-height:1.13;letter-spacing:-.025em;margin:56px 0 32px;max-width:1050px}.content-main>.content-lead{font-size:24px;line-height:1.6;max-width:840px;margin-bottom:40px}.content-main>.course-grid{margin-top:72px}.content-section{padding-top:96px}.content-section>h2{font-size:36px;line-height:1.3;margin:0 0 40px}.service-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.service-grid article{padding:40px;border-radius:24px;background:#151518}.service-grid h3{font-size:28px;line-height:1.25;margin:0 0 20px}.service-grid p{font-size:19px;line-height:1.6;color:#a1a1a6;max-width:450px;margin:0}.delivery-note{padding:32px;border:1px solid #ffffff20;border-radius:20px;margin-top:48px}.delivery-note h3{font-size:24px;margin:0 0 14px}.delivery-note p{font-size:17px;color:#a1a1a6;margin:0;line-height:1.65}.preparation ul{list-style:none;padding:0;max-width:850px;margin-bottom:32px}.preparation li{padding:24px 0;border-bottom:1px solid #ffffff1c;display:grid;grid-template-columns:170px 1fr;gap:24px}.preparation strong{font-size:21px;font-weight:500}.preparation li span{font-size:17px;color:#a1a1a6}.company-introduction{max-width:800px}.company-introduction p{font-size:21px;line-height:1.65;color:#a1a1a6;margin:0 0 28px}.company-location{margin:96px 0 40px;padding:40px 0;border-block:1px solid #ffffff20;display:flex;justify-content:space-between;align-items:center;gap:30px}.company-location h2{font-size:28px;margin:0 0 16px}.company-location p{font-size:17px;color:#a1a1a6;margin:0}.directory-note{display:flex;justify-content:space-between;gap:40px;border-top:1px solid #ffffff1c;margin-top:48px;padding-top:28px;font-size:14px;color:#a1a1a6}.directory-note p{margin:0;max-width:680px}.directory-note a{white-space:nowrap;color:#67b5ff}.contact-layout{display:grid;grid-template-columns:minmax(0,1.6fr) 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0;color:#62b0ff;background:none;font-size:15px}.text-button:hover{text-decoration:underline}.request-result{border-top:1px solid #ffffff22;margin-top:32px;padding-top:24px}.request-result h3{font-size:21px}.request-result pre{white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit;font-size:15px;line-height:1.8;color:#c5c5cc}.form-feedback{min-height:24px;font-size:14px;color:#a9ceef;line-height:1.6}.contact-details{padding-top:8px}.contact-details h2{font-size:24px;line-height:1.4;margin:0 0 24px}.contact-details>p{font-size:19px;line-height:1.7;color:#a1a1a6;margin:0 0 20px}.contact-details>a{display:block;font-size:17px;line-height:1.6;margin-top:16px;color:#e4e4e9;overflow-wrap:anywhere}.contact-details #copy-feedback{display:block;font-size:13px;color:#a1a1a6}.contact-context{border-top:1px solid #ffffff20;margin-top:40px;padding-top:28px}.contact-context h3{font-size:21px}.contact-context p{font-size:17px;color:#a1a1a6;line-height:1.6}.contact-context a{font-size:15px;color:#62b0ff}.course-progress{display:inline-block;padding:8px 16px;border:1px solid #ffffff28;border-radius:30px;font-size:14px;color:#b7c9db}.supporting-copy{font-size:14px;color:#909099;line-height:1.7;margin:32px 0 40px}.scene-top-tools{justify-content:space-between}.experience-layout{position:relative}.experience-layout:fullscreen,.experience-layout.is-expanded{width:100%;max-width:none;background:#080a0e;padding:32px;height:100dvh;align-items:stretch;margin:0;overflow:auto}.experience-layout:fullscreen>.showroom,.experience-layout.is-expanded>.showroom{height:100%;min-height:380px}.experience-layout.is-expanded{position:fixed;inset:0;z-index:300}.experience-layout:fullscreen .lesson-panel,.experience-layout.is-expanded .lesson-panel{overflow-y:auto}.showroom:fullscreen{width:100vw;height:100dvh!important;margin:0!important;border-radius:0}.showroom.is-expanded{position:fixed;inset:0;width:100vw!important;height:100dvh!important;margin:0!important;z-index:300}.experience-layout .lesson-bottom{flex-wrap:wrap;gap:12px}.lesson-bottom #reset-lesson{color:#a4adb7}.course-usage{padding-block:40px 80px}.course-usage h2{font-size:36px;margin:0 0 36px}.course-usage .supporting-copy{max-width:800px}.hero .hero-intro{max-width:400px!important}
@media(max-width:1068px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.section-intro{display:block}.section-intro>p{margin-top:24px}.value-stories article{gap:48px}.workflow{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px}.contact-layout{gap:40px}.ys-links{gap:22px}.course-card h3{font-size:26px}.value-stories h3{font-size:28px}}
@media(max-width:734px){.ys-nav-inner{gap:12px}.nav-toggle{display:flex;align-items:center;gap:14px;border:0;background:none;color:#eee;font-size:13px;padding:12px 0 12px 20px}.nav-toggle span{font-size:20px;line-height:1}.ys-links{display:none!important;position:absolute;top:var(--ys-nav);inset-inline:0;background:#111114fa;backdrop-filter:blur(24px);padding:20px var(--site-gutter) 28px;border-bottom:1px solid #ffffff20;box-shadow:0 24px 40px #0008}.ys-header[data-menu-open=true] .ys-links{display:flex!important;flex-direction:column;align-items:stretch;gap:0}.ys-links a{padding:15px 0;font-size:21px!important;display:block!important}.ys-links .ys-nav-cta{margin-top:12px;align-self:flex-start;font-size:15px!important;padding:11px 20px!important}.site-section{padding-block:80px}.section-intro{margin-bottom:32px}.section-intro h2,.closing-cta h2{font-size:36px;line-height:1.2}.section-intro>p{font-size:17px}.course-grid{grid-template-columns:1fr;gap:20px}.course-card-media{aspect-ratio:16/10}.course-card-body{padding:26px}.course-card h3{font-size:28px}.course-card-actions{font-size:15px}.is-coming .course-card-body{min-height:0}.is-coming .course-card-media{aspect-ratio:2.3}.is-coming .course-summary{margin-bottom:8px}.is-coming .course-topics{margin-top:16px}.is-coming .upcoming-link{margin-top:24px}.value-stories{gap:64px}.value-stories article{grid-template-columns:1fr;gap:28px}.value-stories article:nth-child(even) .value-picture{order:0}.value-stories h3{font-size:28px;margin-bottom:16px}.value-stories p{font-size:17px;margin-bottom:20px}.teaching-grid{grid-template-columns:1fr;gap:32px}.teaching-grid h3{font-size:24px}.teaching-grid p{max-width:none}.workflow{gap:32px 24px}.workflow h3{font-size:21px;margin-top:20px}.workflow p{font-size:15px}.closing-cta{padding-block:80px;text-align:left}.closing-cta p{font-size:17px;line-height:1.6}.content-main>h1{font-size:40px;margin-top:40px}.content-main>.content-lead{font-size:21px;line-height:1.6}.content-main>.course-grid{margin-top:48px}.content-section{padding-top:64px}.content-section>h2,.course-usage h2{font-size:28px}.service-grid{grid-template-columns:1fr}.service-grid article{padding:28px}.service-grid h3{font-size:24px}.service-grid p{font-size:17px}.preparation li{grid-template-columns:1fr;gap:12px}.company-introduction p{font-size:19px}.company-location{margin-top:64px;display:block}.company-location .pill-secondary{margin-top:24px}.directory-note{display:block}.directory-note a{display:inline-block;margin-top:20px}.contact-layout{grid-template-columns:1fr;gap:56px;margin-top:48px}.form-row{grid-template-columns:1fr;gap:0}.request-panel>h2{font-size:28px}.contact-details{border-top:1px solid #ffffff20;padding-top:32px}.experience-layout:fullscreen,.experience-layout.is-expanded{grid-template-columns:1fr;padding:16px;display:block}.experience-layout:fullscreen>.showroom,.experience-layout.is-expanded>.showroom{height:55dvh;min-height:280px;margin-bottom:16px}.experience-layout:fullscreen .lesson-panel,.experience-layout.is-expanded .lesson-panel{overflow:visible}.course-usage{padding-bottom:48px}}
@media(prefers-reduced-motion:reduce){.course-card-media img{transition:none}}
.beam-detail-cover{margin:64px 0 0}.beam-detail-cover img{width:100%;height:auto;display:block;border-radius:24px}.beam-detail-cover figcaption{color:#92929b;font-size:13px;margin-top:16px}@media(max-width:734px){.beam-detail-cover{margin-top:40px}.beam-detail-cover img{border-radius:16px}}

.ys-header .ys-links a.ys-nav-cta{background:#fff;color:#17171c;transition:background-color .2s ease,color .2s ease}.ys-header .ys-links a.ys-nav-cta:hover,.ys-header .ys-links a.ys-nav-cta:focus-visible{background:#0071e3;color:#fff}.ys-header .ys-links a.ys-nav-cta:focus-visible{outline:2px solid #8ac6ff;outline-offset:4px}

/* About and course-customization editorial pages. */
.company-hero{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);min-height:520px;margin-top:40px;overflow:hidden;border-radius:18px;background:#111b25;color:#f5f7f9}
.company-hero-copy{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:clamp(36px,5vw,68px);min-width:0}
.company-eyebrow,.company-section-label{margin:0;color:#708398;font-size:13px;font-weight:600;letter-spacing:.06em}
.company-hero .company-eyebrow{color:#9bb5ca}
.company-hero-lead{max-width:490px;margin:28px 0 34px;font-size:clamp(21px,2.1vw,27px);line-height:1.52;font-weight:500;letter-spacing:-.012em}
.company-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px}
.company-actions .pill-primary{white-space:nowrap}
.company-inline-link{color:#a9d3f6;font-size:15px;line-height:1.4}
.company-inline-link:hover{text-decoration:underline}
.company-hero figure{position:relative;min-width:0;margin:0;overflow:hidden;background:#17232c}
.company-hero figure:after{content:"";position:absolute;inset:auto 0 0;height:95px;pointer-events:none;background:linear-gradient(transparent,#0009)}
.company-hero figure img{display:block;width:100%;height:100%;object-fit:cover}
.company-about-hero figure img{object-position:56% center}
.company-custom-hero figure img{object-position:55% center}
.company-hero figcaption{position:absolute;z-index:1;right:20px;bottom:17px;left:20px;color:#f4f5f6;font-size:12px;line-height:1.5;text-align:right;text-shadow:0 1px 5px #000a}
.company-section{padding-top:108px}
.company-section-head{display:grid;grid-template-columns:minmax(180px,.42fr) minmax(0,1fr);gap:40px;border-top:1px solid #cdd3d9;padding-top:24px}
.company-section-label{padding-top:8px}
.company-section-head h2,.company-final h2{font-size:clamp(32px,3.3vw,46px);line-height:1.23;letter-spacing:-.022em;font-weight:600;margin:0 0 23px}
.company-section-head p:not(.company-section-label){max-width:730px;color:#626970;font-size:19px;line-height:1.7;margin:0}
.company-principles,.company-question-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:44px}
.company-principles article,.company-question-grid article{padding:32px 30px 36px;background:#fff;border:1px solid #e2e5e9;border-radius:12px;min-width:0}
.company-principles article>span,.company-question-grid article>span{color:#6a8296;font-size:12px;font-weight:600;letter-spacing:.05em}
.company-principles h3,.company-question-grid h3{font-size:25px;line-height:1.28;margin:46px 0 14px;letter-spacing:-.015em}
.company-principles p,.company-question-grid p{color:#626970;font-size:16px;line-height:1.65;margin:0}
.company-course-links{margin-top:42px;border-top:1px solid #cdd3d9}
.company-course-links a{display:grid;grid-template-columns:minmax(150px,.42fr) minmax(0,1fr) auto;align-items:center;gap:40px;padding:31px 8px;border-bottom:1px solid #cdd3d9;transition:background .2s ease,padding .2s ease}
.company-course-links a:hover{background:#e9edf0;padding-inline:18px}
.company-course-links a>span:first-child{font-size:14px;color:#69747e}
.company-course-links strong{font-size:25px;font-weight:600;line-height:1.25}
.company-course-action{font-size:14px;color:#0071e3;white-space:nowrap}
.company-final{display:flex;justify-content:space-between;align-items:end;gap:32px;padding:72px clamp(30px,5vw,64px);margin-top:108px;background:#e8eef3;border-radius:14px}
.company-final h2{margin:24px 0 18px}
.company-final p:last-child{margin:0;color:#626970;font-size:17px;line-height:1.6}
.company-final .pill-primary{white-space:nowrap}
.company-process .workflow{margin-top:46px;margin-bottom:0;gap:22px}
.company-process .workflow li{padding:26px 22px 0 0;border-color:#cdd3d9}
.company-process .workflow h3{margin:35px 0 14px;font-size:21px}
.company-process .workflow p{font-size:16px}
.company-scope-note{margin:36px 0 0;padding:24px 28px;background:#e8eef3;border-radius:10px;font-size:15px;line-height:1.65;color:#4e5e6b}
.company-preparation-list{list-style:none;margin:44px 0 0;padding:0;border-top:1px solid #cdd3d9}
.company-preparation-list li{display:grid;grid-template-columns:minmax(150px,.42fr) minmax(0,1fr);gap:40px;border-bottom:1px solid #cdd3d9;padding:23px 8px}
.company-preparation-list span{font-size:20px;font-weight:600}
.company-preparation-list p{font-size:17px;line-height:1.65;color:#626970;margin:0}
.company-end-action{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:42px}
.company-end-action p{font-size:22px;font-weight:600;margin:0}
@media(max-width:900px){
 .company-hero{grid-template-columns:1fr 1fr;min-height:440px}
 .company-hero-copy{padding:34px}
 .company-hero-lead{font-size:21px}
 .company-actions{gap:18px}
 .company-principles,.company-question-grid{gap:12px}
 .company-principles article,.company-question-grid article{padding:24px}
 .company-principles h3,.company-question-grid h3{font-size:22px}
 .company-process .workflow{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media(max-width:734px){
 .company-hero{grid-template-columns:1fr;min-height:0;margin-top:28px;border-radius:12px}
 .company-hero-copy{padding:36px 28px 40px}
 .company-hero-lead{font-size:21px;margin:20px 0 28px}
 .company-actions{align-items:flex-start;flex-direction:column;gap:22px}
 .company-hero figure{height:auto;aspect-ratio:4/3}
 .company-hero figcaption{font-size:11px}
 .company-section{padding-top:76px}
 .company-section-head{grid-template-columns:1fr;gap:23px}
 .company-section-label{padding-top:0}
 .company-section-head h2,.company-final h2{font-size:31px;margin-bottom:18px}
 .company-section-head p:not(.company-section-label){font-size:17px}
 .company-principles,.company-question-grid{grid-template-columns:1fr;gap:12px;margin-top:30px}
 .company-principles article,.company-question-grid article{padding:24px 26px 28px}
 .company-principles h3,.company-question-grid h3{margin:24px 0 12px}
 .company-course-links{margin-top:30px}
 .company-course-links a{grid-template-columns:1fr auto;gap:6px 12px;padding:21px 2px}
 .company-course-links a>span:first-child{grid-column:1/-1}
 .company-course-links strong{font-size:21px}
 .company-course-action{font-size:12px}
 .company-final{display:block;margin-top:76px;padding:36px 28px}
 .company-final .pill-primary{display:inline-flex;margin-top:28px}
 .company-process .workflow{margin-top:30px}
 .company-process .workflow li{padding:20px 8px 0 0}
 .company-process .workflow h3{margin:23px 0 10px;font-size:19px}
 .company-scope-note{padding:20px;margin-top:28px}
 .company-preparation-list{margin-top:30px}
 .company-preparation-list li{display:block;padding:20px 2px}
 .company-preparation-list span{font-size:19px}
 .company-preparation-list p{font-size:16px;margin-top:9px}
 .company-end-action{display:block;margin-top:30px}
 .company-end-action p{font-size:20px;margin-bottom:22px}
}

/* Source: assets/global-nav.css */
/* Dark base #161617 sampled from Apple globalheader.css; transparency increased by 10 percentage points. */
:root { --ys-nav: 48px; }
.ys-header {
  position: sticky;
  top: 0;
  z-index: 700;
  height: var(--ys-nav);
  color: #f5f5f7;
  background: rgba(22, 22, 23, .86) !important;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  backdrop-filter: saturate(180%) blur(22px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, .08);
}
.ys-header .ys-nav-inner {
  box-sizing: border-box;
  width: min(1260px, calc(100% - var(--site-gutter)*2));
  max-width: 1260px;
  height: 100%;
  margin-inline: auto;
  padding: 0;
  gap: clamp(28px, 5vw, 86px);
}
.ys-header .ys-brand { min-width: 0; opacity: .98; }
.ys-header .ys-brand img.ys-official-logo { display: block; width: 34px; height: 27px; object-fit: contain; }
.ys-header .ys-links { flex: 0 1 auto; margin-left: auto; display: flex; justify-content: flex-end; align-items: center; gap: 30px; font-size: 12px; font-weight: 450; letter-spacing: .025em; }
.ys-header .ys-links a { flex: 0 0 auto; color: rgba(245, 245, 247, .74); line-height: 1; white-space: nowrap; transition: color .18s ease, border-color .18s ease, background-color .18s ease; }
.ys-header .ys-links a:hover, .ys-header .ys-links a[aria-current="page"] { color: #fff; }
.ys-header .ys-links a.ys-nav-cta { padding: 0; border: 0; border-radius: 0; background: transparent; color: rgba(245, 245, 247, .74); font-size: inherit; }
.ys-header .ys-links a.ys-nav-cta:hover, .ys-header .ys-links a.ys-nav-cta:focus-visible { background: transparent; color: white; }
.ys-header .ys-links a.ys-nav-login { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 8px 13px; margin-left: 4px; color: #f7f8fb; border: 1px solid rgba(255, 255, 255, .37); border-radius: 999px; background: rgba(255, 255, 255, .08); }
.ys-header .ys-links a.ys-nav-login:hover, .ys-header .ys-links a.ys-nav-login[aria-current="page"] { border-color: rgba(255, 255, 255, .8); background: rgba(255, 255, 255, .2); }
.ys-nav-mobile-actions { display: none; }
@media (max-width: 734px) {
  :root { --ys-nav: 48px; }
  .ys-header .ys-nav-inner { width: calc(100% - 40px); gap: 12px; }
  .ys-header .ys-brand img.ys-official-logo { width: 30px; height: 24px; }
  .ys-nav-mobile-actions { display: flex; align-items: center; gap: 20px; margin-left: auto; }
  .ys-header .ys-login-mobile { display: inline-flex; align-items: center; min-height: 44px; color: rgba(245,245,247,.86); font-size: 12px; white-space: nowrap; }
  .ys-header .nav-toggle { display: inline-flex; align-items: center; gap: 9px; padding: 10px 0; color: #f5f5f7; font-size: 12px; }
  .ys-header .nav-toggle span { font-size: 20px; }
  .ys-header .ys-links { display: none !important; position: absolute; top: var(--ys-nav); inset-inline: 0; margin: 0; padding: 14px 20px 22px; border-bottom: 1px solid rgba(255,255,255,.14); background: rgba(25,26,29,.92); -webkit-backdrop-filter: saturate(180%) blur(25px); backdrop-filter: saturate(180%) blur(25px); box-shadow: 0 25px 45px rgba(0,0,0,.22); }
  .ys-header[data-menu-open="true"] .ys-links { display: flex !important; flex-direction: column; align-items: stretch; gap: 0; }
  .ys-header .ys-links a, .ys-header .ys-links a.ys-nav-cta { display: block !important; padding: 14px 0 !important; font-size: 17px !important; }
  .ys-header .ys-links a.ys-nav-login { display: none !important; }
}
@media (prefers-reduced-transparency: reduce) {
  .ys-header, .ys-header .ys-links { background: #202126 !important; -webkit-backdrop-filter: none; backdrop-filter: none; }
}

/* Source: assets/experience-refinement.css */
/* Shared content edges: header, body, lesson rails and footer use one measure. */
:root{--site-gutter:clamp(24px,5.6vw,80px);--content-inset:max(var(--site-gutter),calc((100vw - 1260px)/2));--course-rail:160px}
.ys-header .ys-nav-inner,.ys-wrap,.footer-content,.footer-legal{width:min(1260px,calc(100% - var(--site-gutter)*2));max-width:1260px;margin-inline:auto}
.ys-header .ys-brand{display:flex;align-items:center;padding:0;filter:none;background:none}
.ys-header .ys-brand img.ys-official-logo{filter:none;mix-blend-mode:normal;background:transparent;object-position:left center}
.site-footer{padding-inline:0}.site-footer .footer-brand img{width:42px;height:33px;object-fit:contain;object-position:left center;filter:none;background:none;mix-blend-mode:normal}
.ys-home .hero-layout{width:min(1260px,calc(100% - var(--site-gutter)*2))}
/* Quiet space, with sparse points and nebulosity kept to the edges. */
.ys-home .hero{isolation:isolate;background:#030405}
.ys-home .hero:before,.ys-home .hero:after{content:"";position:absolute;inset:0;pointer-events:none;z-index:0}
.ys-home .hero:before{background:radial-gradient(ellipse 38% 45% at -10% 85%,#28395538,transparent 75%),radial-gradient(ellipse 33% 55% at 109% 30%,#33304435,transparent 80%),radial-gradient(ellipse 22% 50% at 85% 100%,#14333d20,transparent 80%);opacity:.8}
.ys-home .hero:after{opacity:.46;background:radial-gradient(1px 1px at 7% 19%,#bbd0e6 90%,transparent),radial-gradient(.7px .7px at 19% 68%,#d2e3f0 90%,transparent),radial-gradient(1px 1px at 31% 10%,#adbed2 90%,transparent),radial-gradient(.7px .7px at 39% 85%,#c9e2ed 90%,transparent),radial-gradient(.8px .8px at 52% 14%,#dce7ff 90%,transparent),radial-gradient(.7px .7px at 66% 91%,#d7e9f8 90%,transparent),radial-gradient(1px 1px at 78% 12%,#c4d8ed 90%,transparent),radial-gradient(.7px .7px at 88% 57%,#c4d8ed 90%,transparent),radial-gradient(.8px .8px at 96% 82%,#dce7ff 90%,transparent),radial-gradient(.7px .7px at 3% 45%,#c4d8ed 90%,transparent)}
.ys-home .hero-layout{z-index:1}.raptor-course .hero[data-scene=conditions]:before,.raptor-course .hero[data-scene=conditions]:after{opacity:0}
@media(min-width:901px){
 .ys-home:not(.raptor-course) .hero .raptor-local{position:absolute!important;left:25%!important;right:0!important;top:0!important;bottom:0!important;width:75%!important;overflow:visible}
 .ys-home:not(.raptor-course) .raptor-local canvas{mask-image:linear-gradient(90deg,transparent,#000 26%,#000);-webkit-mask-image:linear-gradient(90deg,transparent,#000 26%,#000)}
 .ys-home:not(.raptor-course) .hero-copy{max-width:100%}
}
/* Image-led cards: every card is a single large, accessible course link. */
.ys-home .home-course-section{padding:90px 0 86px;background:#f5f5f7}
.ys-home .home-course-heading{max-width:none;display:grid;grid-template-columns:1fr 1fr;align-items:end;text-align:left;gap:12px 40px;margin:0 0 36px}
.ys-home .home-course-kicker{grid-column:1/-1;font-size:13px;margin:0;color:#6e6e73}
.ys-home .home-course-heading h2{font-size:clamp(32px,3.8vw,48px);line-height:1.18}.ys-home .home-course-heading h2 br{display:none}
.ys-home .home-course-heading>p:last-child{font-size:16px;margin:0;max-width:340px;justify-self:end}
.ys-home .home-course-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;max-width:none}
.ys-home .home-course-card{border-radius:24px;box-shadow:0 4px 20px #18232b08;transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.ys-home .home-course-card>a{min-height:0;display:flex;flex-direction:column;position:relative;-webkit-tap-highlight-color:transparent}
.ys-home .home-course-media{order:0;aspect-ratio:4/3;height:auto;background:#0a0c0f}
.ys-home .home-course-media img{object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.ys-home .home-course-copy{order:1;min-height:0;padding:25px 26px 24px;display:grid;grid-template-columns:1fr auto;gap:9px 12px}
.ys-home .home-course-category{grid-column:1/-1;font-size:12px;margin:0;color:#77777d;font-weight:400}
.ys-home .home-course-copy h3{grid-column:1;font-size:26px;margin:0;line-height:1.3;letter-spacing:-.025em}
.ys-home .home-course-summary{grid-column:1/-1;font-size:14px;line-height:1.65;min-height:46px;margin:2px 0 7px}
.ys-home .home-course-action{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:500;margin:0;padding:8px 0 0}
.ys-home .home-course-action span{width:34px;height:34px;background:#0071e3;color:white;transition:transform .3s,background .3s}
.ys-home .home-course-card:hover{transform:translateY(-4px);box-shadow:0 14px 32px #18232b13}.ys-home .home-course-card:hover .home-course-action span{background:#0077ed;transform:translate(2px,-2px)}
.ys-home .home-course-card:active{transform:scale(.985)}
.ys-home>.closing-cta,.ys-home main>.closing-cta{width:100%;max-width:none;padding:110px var(--site-gutter) 120px;background:#f5f5f7;text-align:center;margin:0;color:#1d1d1f}
.ys-home .closing-cta h2{font-size:clamp(35px,4.3vw,60px);line-height:1.18;margin:0 auto 30px;letter-spacing:-.035em}.ys-home .closing-cta p{color:#86868b;font-size:20px;margin:0 auto 32px}.ys-home .closing-cta .pill-primary{font-size:17px}
/* Desktop course framework. The right edge always matches the global navigation. */
.raptor-course{--course-safe-inset:var(--content-inset)}
.raptor-course .hero-layout{width:100%;max-width:none}
.ys-home.raptor-course .hero.engine-course-module{height:900px;min-height:900px;background:#030506}
.ys-home.raptor-course .hero .hero-copy{width:280px}
.ys-home.raptor-course .raptor-local .raptor-mode-switch,.ys-home.raptor-course .raptor-local:not([data-display=structure]) .raptor-mode-switch{right:var(--content-inset);width:var(--course-rail);top:100px;padding-left:24px;box-sizing:border-box}
.ys-home.raptor-course .raptor-local:not([data-display=structure]) .principle-panel{left:var(--content-inset);width:250px;top:290px}
.roadster-module{--course-safe-inset:var(--content-inset)}
.roadster-module .system-nav{right:var(--content-inset);width:var(--course-rail);top:100px;box-sizing:border-box;padding-left:24px}
.roadster-module .module-tools{right:var(--content-inset)}
.roadster-module .bottom-bar{left:var(--content-inset);right:var(--content-inset)}
.roadster-module .intro,.roadster-module .energy-panel,.roadster-module .concept-panel{width:270px;max-width:270px}
.bridge-layout{grid-template-columns:250px minmax(0,1fr) var(--course-rail)}
.bridge-nav{padding-left:24px;margin-top:100px}.bridge-nav button[aria-pressed=true]:before{left:-26px}
@media(min-width:741px) and (max-width:1100px){:root{--course-rail:138px}.ys-home.raptor-course .hero .hero-copy{width:230px}.ys-home.raptor-course .raptor-local:not([data-display=structure]) .principle-panel{width:218px}.roadster-module .intro,.roadster-module .concept-panel,.roadster-module .energy-panel{width:230px;max-width:230px}}
/* Compact phone lessons: modes, scene, then controls within one reading viewport. */
@media(max-width:740px){
 :root{--site-gutter:20px;--course-scene-height:clamp(230px,34svh,310px)}
 .ys-header .ys-nav-inner{width:calc(100% - 40px)}
 .experience-page .experience-heading,.raptor-course .experience-heading{padding-block:12px}
 .experience-heading .breadcrumbs-ys{display:none}
 .experience-heading .experience-title-row h1{font-size:21px;margin:0;line-height:1.5}
 .experience-title-row{gap:16px;min-height:34px}.experience-title-row a{font-size:11px!important}
 .experience-title-links{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.experience-title-links a[href='/courseware/raptor/']{display:none}
 .course-theory{margin-block:24px!important}.course-theory>summary{padding:18px!important}.course-theory>summary small{font-size:11px}
 /* Engine */
 .ys-home.raptor-course .hero.engine-course-module{height:auto;min-height:0;max-height:none}
 .ys-home.raptor-course .hero-layout{display:block;width:100%;height:auto}
 .ys-home.raptor-course .hero .hero-copy{display:none}
 .ys-home.raptor-course .hero .raptor-local,.ys-home.raptor-course .hero .raptor-local:not([data-display=structure]){height:auto!important;min-height:0;width:100%!important;position:relative!important;padding:calc(88px + var(--course-scene-height)) 20px 16px;box-sizing:border-box}
 .ys-home.raptor-course .hero .raptor-local[data-display=structure]{--course-scene-height:clamp(330px,calc(100svh - 230px),620px);padding-bottom:22px}
 .ys-home.raptor-course .raptor-local canvas,.ys-home.raptor-course .raptor-local:not([data-display=structure]) canvas{position:absolute;top:88px;height:var(--course-scene-height)!important;left:0;width:100%}
 .ys-home.raptor-course .raptor-local .raptor-mode-switch,.ys-home.raptor-course .raptor-local:not([data-display=structure]) .raptor-mode-switch{left:20px;right:20px;top:8px;width:auto;grid-template-columns:repeat(3,1fr);display:grid;gap:0 10px;padding:0}
 .ys-home.raptor-course .raptor-mode-switch button,.ys-home.raptor-course .raptor-local:not([data-display=structure]) .raptor-mode-switch button{height:38px;min-height:38px;padding:0;text-align:center;font-size:12px}
 .ys-home.raptor-course .raptor-mode-switch:before,.ys-home.raptor-course .raptor-mode-switch:after{display:none}
 .ys-home.raptor-course .raptor-local .principle-panel,.ys-home.raptor-course .raptor-local:not([data-display=structure]) .principle-panel{position:relative;inset:auto;width:100%;margin:0}
 .ys-home.raptor-course .principle-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}
 .ys-home.raptor-course .principle-steps button{min-height:46px;padding:4px 0;display:flex;flex-direction:column;gap:5px;align-items:center;font-size:11px;text-align:center}
 .ys-home.raptor-course .principle-steps button span{width:21px;height:21px;flex-basis:21px;font-size:9px}.ys-home.raptor-course .principle-steps button:after{display:none}
 .ys-home.raptor-course .principle-caption{min-height:0;margin-top:10px;padding-top:10px}.ys-home.raptor-course .principle-caption h3{font-size:16px;margin:0 0 5px}.ys-home.raptor-course .principle-caption p{font-size:12px;line-height:1.6;margin:0}
 .ys-home.raptor-course .principle-actions{gap:8px;margin-top:10px;display:flex}.ys-home.raptor-course .principle-actions button{font-size:12px;padding:8px 12px;min-height:36px}
 .ys-home.raptor-course .principle-note{font-size:10px;line-height:1.5;margin:8px 0 0}.ys-home.raptor-course .principle-legend{font-size:11px;margin-top:7px}
 .ys-home.raptor-course .pump-zoom{font-size:12px;margin:3px 0;padding:4px 0}
 .ys-home.raptor-course .raptor-lab-panel .lab-kicker,.ys-home.raptor-course .raptor-lab-panel>h3{display:none}
 .ys-home.raptor-course .raptor-lab-panel>p{font-size:12px;line-height:1.55;margin:0 0 8px}
 .ys-home.raptor-course .raptor-lab-panel label{font-size:12px;margin:8px 0 2px}.ys-home.raptor-course .raptor-lab-panel input[type=range]{height:24px;margin:0;display:block}
 .ys-home.raptor-course .lab-readouts{margin-top:9px;padding-top:9px;gap:15px}.ys-home.raptor-course .lab-readouts small{font-size:10px;margin-bottom:3px}.ys-home.raptor-course .lab-readouts strong{font-size:24px}
 .ys-home.raptor-course #rocket-chart{float:right;width:44%;height:65px;margin:4px 0 0 12px}.ys-home.raptor-course .raptor-lab-panel .lab-equation{font-size:12px;margin:8px 0}
 .ys-home.raptor-course .lab-options{gap:7px;margin:8px 0}.ys-home.raptor-course .lab-options button{flex:1;min-height:36px;padding:7px 10px;font-size:12px}
 .ys-home.raptor-course .condition-playback{margin:6px 0}.ys-home.raptor-course .condition-playback button{min-height:34px;padding:7px 10px}
 .ys-home.raptor-course .lab-small,.ys-home.raptor-course #fault-clue,.ys-home.raptor-course #fault-feedback{font-size:11px;line-height:1.5;margin:6px 0}
 .ys-home.raptor-course .part-info{width:210px;max-width:calc(100% - 40px)}.ys-home.raptor-course .part-info h3{font-size:15px}.ys-home.raptor-course .part-info p{font-size:12px;line-height:1.6;margin-top:16px}
 /* Car: shared rail above the model; working controls directly below it. */
 .roadster-module{margin-bottom:0}.roadster-module .module-tools{position:relative;inset:auto;justify-content:flex-end;margin:0 20px;padding:3px 0}
 .roadster-module .module-tools button{font-size:11px;padding:3px 0;min-height:28px;border:0;background:none}
 .roadster-module .roadster-stage{display:flex;flex-direction:column;height:auto;min-height:0;max-height:none}
 .roadster-module .system-nav{order:0;inset:auto;width:auto;margin:0 20px;padding:0;display:flex;justify-content:space-between;gap:6px;border:0}
 .roadster-module .system-nav button{min-height:44px;padding:5px 0;flex:1;justify-content:center;border-bottom:1px solid #ffffff21}.roadster-module .system-nav strong{font-size:11px;white-space:nowrap}.roadster-module .system-nav button[aria-current]:before{display:none}
 .roadster-module .stage{order:1;position:relative;left:0;width:100%;height:var(--course-scene-height);min-height:0}
 .roadster-module[data-mode=vehicle] .stage,.roadster-module[data-mode=structure] .stage{height:clamp(270px,43svh,390px)}
 .roadster-module .scene-hint,.roadster-module[data-mode=drive] .scene-hint{bottom:10px;font-size:10px}
 .roadster-module .intro{order:2;position:relative;inset:auto;width:auto;max-width:none;margin:0;padding:8px 20px}
 .roadster-module .intro>:not(.vehicle-tools){display:none!important}.roadster-module .vehicle-tools{display:flex;gap:6px;margin:0;max-width:none}.roadster-module .vehicle-tools button{flex:1;min-height:38px;padding:6px;font-size:11px}
 .roadster-module .energy-panel,.roadster-module .concept-panel{order:2;position:relative;inset:auto;width:auto;max-width:none;margin:0 20px 8px;padding:0;border:0}
 .roadster-module .concept-heading{margin:0 0 4px;font-size:12px}.roadster-module .concept-heading button,.roadster-module .flow-pause{font-size:11px;min-height:28px}
 .roadster-module :is(.concept-panel,.energy-panel) label{font-size:12px;margin:5px 0 0}.roadster-module :is(.concept-panel,.energy-panel) input{margin:0;width:100%;height:24px;display:block}
 .roadster-module .concept-stats,.roadster-module .energy-stats{gap:20px;margin:8px 0}.roadster-module .concept-stats strong,.roadster-module .energy-stats strong{font-size:22px}.roadster-module .concept-stats small,.roadster-module .energy-stats small{font-size:10px}
 .roadster-module .concept-assumption{display:none}.roadster-module :is(.concept-panel,.energy-panel) p{font-size:10px;margin:5px 0;line-height:1.5}
 .roadster-module .speed-presets{margin:5px 0;gap:6px}.roadster-module .speed-presets button{min-height:32px;padding:6px;font-size:11px}.roadster-module .drive-toggles{gap:20px}.roadster-module .field-toggle{min-height:30px;padding:4px 0;font-size:11px}
 .roadster-module .bottom-bar{order:3;position:relative;inset:auto;padding:8px 20px 12px;gap:7px;display:flex;flex-direction:column}
 .roadster-module .controls{width:100%;padding:4px 6px;gap:4px;flex-wrap:nowrap}.roadster-module .controls button{padding:5px;font-size:10px;min-height:34px}.roadster-module .controls input{width:60px}.roadster-module .controls label{gap:5px}.roadster-module .controls output{font-size:10px;min-width:25px}
 .roadster-module .notes-button{font-size:10px;min-height:24px}.roadster-module .segmented button{font-size:12px;min-height:34px}
 /* Bridge */
 .bridge-layout{display:flex;flex-direction:column;width:100%;height:auto}.bridge-copy{display:none}
 .bridge-nav{margin:0 20px;padding:0;gap:10px;order:0;grid-template-columns:repeat(3,1fr)}.bridge-nav button{font-size:12px;min-height:44px;padding:7px 0}
 .bridge-nav button[aria-pressed=true]:before{left:0;width:100%}
 .bridge-scene{order:1;height:clamp(250px,37svh,330px)}.bridge-scene-top{top:12px;left:20px;right:20px;font-size:11px}.bridge-scene-bottom{left:20px;right:20px;bottom:13px}.bridge-guidance{bottom:40px}
 .bridge-workbench{width:calc(100% - 40px);padding:12px 0;gap:10px;grid-template-columns:1fr;min-height:0}
 .bridge-mode-intro>span,.bridge-mode-intro h3{display:none}.bridge-mode-intro p{font-size:11px;line-height:1.5}
 .bridge-controls,.bridge-module[data-mode=deform] .bridge-controls{grid-template-columns:1fr 1fr;gap:7px 16px}
 .bridge-control.bridge-load-control{grid-column:1/-1}.bridge-control label{font-size:11px}.bridge-control input[type=range]{height:22px;margin:0;display:block}
 .bridge-control select{margin:4px 0 0;padding:6px;font-size:11px}.bridge-readouts{padding-top:7px;gap:22px}.bridge-readouts strong{font-size:16px}.bridge-readouts span{font-size:10px}
 .bridge-actions{grid-column:auto}.bridge-actions button{padding:6px 12px;min-height:32px;font-size:11px}.bridge-boundary{width:calc(100% - 40px);font-size:10px;padding-bottom:12px;line-height:1.5}
 .bridge-comparison{gap:7px;padding-top:8px}.bridge-comparison p,.bridge-comparison span{font-size:10px}.bridge-comparison strong{font-size:13px}.bridge-comparison button{padding:5px 10px;min-height:30px}
 /* Home remains generous, while course choices scan in a single swipe. */
 .ys-home .home-course-section{padding:54px 0 45px;overflow:hidden}
 .ys-home .home-course-heading{display:block;margin-bottom:24px}.ys-home .home-course-heading h2{font-size:32px;line-height:1.25;margin-top:10px}.ys-home .home-course-heading>p:last-child{font-size:14px;margin-top:12px}
 .ys-home .home-course-grid{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding-inline:20px;margin-inline:-20px;padding:4px 20px 18px;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#c9c9cf transparent}
 .ys-home .home-course-card{flex:0 0 85%;scroll-snap-align:start;border-radius:22px}.ys-home .home-course-card:last-child{margin-right:20px}
 .ys-home .home-course-copy{padding:21px 22px;min-height:0}.ys-home .home-course-copy h3{font-size:24px}.ys-home .home-course-summary{font-size:13px;min-height:43px}.ys-home .home-course-media{aspect-ratio:4/3;height:auto}
 .ys-home main>.closing-cta{padding:70px 20px 80px}.ys-home .closing-cta h2{font-size:32px;line-height:1.25;margin-bottom:23px}.ys-home .closing-cta p{font-size:15px;line-height:1.7;max-width:300px;margin-bottom:26px}.ys-home .closing-cta .pill-primary{font-size:14px}
}
@media(prefers-reduced-motion:reduce){.home-course-card,.home-course-media img,.home-course-action span{transition:none!important}}

@media(max-width:740px){
 .roadster-module{--course-scene-height:clamp(215px,30svh,270px)}
 .roadster-module .concept-stats,.roadster-module .energy-stats{padding:0;line-height:1.3}
 .roadster-module .concept-stats strong,.roadster-module .energy-stats strong{line-height:1.2;margin-top:5px}
 .roadster-module .drive-panel .concept-equation{font-size:12px;line-height:1.5;margin:5px 0}
 .roadster-module .drive-panel .field-toggle{line-height:1.3;border:0;background:none}
}

@media(max-width:740px){
 .bridge-module:not([data-mode=structure]) .bridge-scene{height:clamp(210px,29svh,290px)}
}
@media(max-width:740px) and (max-height:740px){
 .ys-home.raptor-course .hero .raptor-local:not([data-display=structure]){--course-scene-height:185px}
 .roadster-module{--course-scene-height:210px}
 .roadster-module[data-mode=vehicle] .stage,.roadster-module[data-mode=structure] .stage{height:270px}
}

.login-panel-mark img{filter:none;mix-blend-mode:normal;background:none}
.login-main{padding-inline:0}.login-grid{width:min(1260px,calc(100% - var(--site-gutter)*2));max-width:1260px}
@media(min-width:741px){.bridge-copy h2{font-size:28px;line-height:1.45}.bridge-scene #bridge-viewport,.bridge-scene .bridge-sky{mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}}

@media(max-width:740px){
 .roadster-module .module-tools{position:absolute;inset:auto 20px 12px auto;margin:0;padding:0}
 .roadster-module .bottom-bar .notes-button{align-self:flex-start}
 .roadster-module .drive-toggles .field-toggle{margin-top:0}
 .roadster-module .drive-panel .concept-equation{display:none}
 .roadster-module .concept-heading button{padding:0;min-height:24px}
 .roadster-module .concept-stats small{margin-bottom:3px}
 .roadster-module .bottom-bar{padding-top:5px;padding-bottom:10px;gap:3px}
}
@media(max-width:740px){
 .ys-home .home-course-heading>p:last-child{text-align:left;justify-self:start;margin-left:0;width:auto;max-width:none}
 .ys-home .closing-cta h2{font-size:28px;text-wrap:balance;max-width:335px}
}
@media(max-width:740px) and (max-height:740px){.roadster-module{--course-scene-height:190px}}
@media(max-width:740px){.bridge-nav{align-self:stretch}}

/* A stable stage: the same rail and projection band in all homepage modes. */
@media(min-width:901px){
 .ys-home:not(.raptor-course) .hero,.ys-home:not(.raptor-course) .hero:has(.raptor-local:not([data-display=structure])){height:calc(100svh - 48px);min-height:850px;max-height:1000px}
 .ys-home:not(.raptor-course) .hero-layout{grid-template-columns:35% 65%}
 .ys-home:not(.raptor-course) .raptor-local .raptor-mode-switch,.ys-home:not(.raptor-course) .raptor-local:not([data-display=structure]) .raptor-mode-switch{top:60px;right:0;width:242px;box-sizing:border-box;padding-left:22px}
 .ys-home:not(.raptor-course) .raptor-local .principle-panel,.ys-home:not(.raptor-course) .raptor-local:not([data-display=structure]) .principle-panel{top:232px;width:242px}
}
@media(min-width:901px) and (max-width:1150px){
 .ys-home:not(.raptor-course) .raptor-local .raptor-mode-switch,.ys-home:not(.raptor-course) .raptor-local:not([data-display=structure]) .raptor-mode-switch,.ys-home:not(.raptor-course) .raptor-local .principle-panel{width:210px}
 .ys-home:not(.raptor-course) .hero .hero-copy h1{font-size:52px}
}
/* Small, luminous stars remain sparse; coloured haze stays at the perimeter. */
.ys-home .hero:before{opacity:1;background:radial-gradient(ellipse 48% 66% at -9% 72%,#35476d66,transparent 76%),radial-gradient(ellipse 42% 60% at 111% 27%,#52436159,transparent 77%),radial-gradient(ellipse 30% 36% at 84% 110%,#21565d44,transparent 80%)}
.ys-home .hero:after{opacity:.8;background:
 radial-gradient(1.5px 1.5px at 7% 19%,#eaf5ff 80%,transparent),radial-gradient(7px 7px at 7% 19%,#93bcf148,transparent 85%),
 radial-gradient(1.4px 1.4px at 86% 18%,#fff3df 80%,transparent),radial-gradient(8px 8px at 86% 18%,#f9d8ac36,transparent 85%),
 radial-gradient(1.5px 1.5px at 92% 68%,#ecf4ff 80%,transparent),radial-gradient(7px 7px at 92% 68%,#9db9f447,transparent 85%),
 radial-gradient(1.1px 1.1px at 18% 82%,#d8edff 80%,transparent),radial-gradient(5px 5px at 18% 82%,#c2d4f42b,transparent 85%),
 radial-gradient(.8px .8px at 31% 10%,#b9cbe5 90%,transparent),radial-gradient(.7px .7px at 39% 85%,#d1dfea 90%,transparent),radial-gradient(1px 1px at 52% 14%,#e0ebff 90%,transparent),radial-gradient(.7px .7px at 66% 91%,#d7e9f8 90%,transparent),radial-gradient(.7px .7px at 74% 42%,#b9c9df 90%,transparent),radial-gradient(.8px .8px at 96% 82%,#dae4fb 90%,transparent),radial-gradient(.7px .7px at 3% 45%,#becfe3 90%,transparent)}
.raptor-course .hero[data-scene=conditions]:before,.raptor-course .hero[data-scene=conditions]:after{opacity:0}
/* Scale the label, keeping the hit area, active marker and right edge still. */
:is(.raptor-mode-switch,.bridge-nav) .mode-label,.roadster-module .system-nav strong{display:inline-block;transform-origin:right center;transition:transform .48s cubic-bezier(.2,.8,.2,1),color .3s,text-shadow .4s;will-change:transform}
@media(min-width:741px){
 .ys-home .raptor-local .raptor-mode-switch button,.roadster-module .system-nav button,.bridge-nav button{text-align:right}
 .roadster-module .system-nav button{justify-content:flex-end}
 .roadster-module .system-nav button>span:not(.node){width:100%;text-align:right}
}
@media(hover:hover){
 :is(.raptor-mode-switch,.bridge-nav) button:hover .mode-label,.roadster-module .system-nav button:hover strong{transform:scale(1.09);color:#f1f7ff;text-shadow:0 0 22px #abcbe94d}
}
:is(.raptor-mode-switch,.bridge-nav) button:active .mode-label,.roadster-module .system-nav button:active strong{transform:scale(.98)}
:is(.raptor-mode-switch,.bridge-nav) button:focus-visible .mode-label,.roadster-module .system-nav button:focus-visible strong{color:#fff}
/* Tighten the explanatory column and let the engine and mode rail sit lower. */
@media(min-width:741px){
 .ys-home.raptor-course .hero .hero-copy{top:44px!important}
 .ys-home.raptor-course .hero .hero-copy h1{font-size:28px;line-height:1.35}
 .ys-home.raptor-course .hero .hero-copy .eyebrow{margin-bottom:12px}
 .ys-home.raptor-course .hero .hero-intro{font-size:14px;line-height:1.6;margin:14px 0}
 .ys-home.raptor-course .raptor-local .raptor-mode-switch,.ys-home.raptor-course .raptor-local:not([data-display=structure]) .raptor-mode-switch{top:144px}
 .ys-home.raptor-course .raptor-local canvas,.ys-home.raptor-course .raptor-local:not([data-display=structure]) canvas{top:56px;height:calc(100% - 56px)}
 .ys-home.raptor-course .raptor-local:not([data-display=structure]) .principle-panel{top:255px}
 .ys-home.raptor-course .raptor-lab-panel .lab-kicker{margin-bottom:7px}
 .ys-home.raptor-course .raptor-lab-panel h3{font-size:21px;margin-bottom:10px}
 .ys-home.raptor-course .raptor-lab-panel>p{font-size:13px;line-height:1.6;margin-bottom:14px}
 .ys-home.raptor-course .lab-options{margin:14px 0;gap:7px}
 .ys-home.raptor-course .lab-readouts{margin-top:17px;padding-top:15px}
 .ys-home.raptor-course .lab-small{font-size:11px;line-height:1.6}
}
/* Five studio finishes, with a coordinated ambient wash behind the live model. */
@property --car-ambient{syntax:'<color>';inherits:true;initial-value:#283640}
.roadster-module{--car-ambient:#283640;transition:--car-ambient 1.2s ease}
.roadster-module .roadster-stage{background:radial-gradient(ellipse at 57% 55%,var(--car-ambient),#10171e 52%,#080b0f 86%)}
.roadster-module .paint-picker{pointer-events:auto;margin:22px 0 18px;max-width:270px}
.roadster-module .paint-heading{display:flex;justify-content:space-between;font-size:11px;color:#8a9eaf;align-items:center;margin-bottom:10px;letter-spacing:.04em}
.roadster-module .paint-heading output{color:#cfdae5;font-size:12px;letter-spacing:0}
.roadster-module .paint-swatches{display:flex;gap:8px;align-items:center}
.roadster-module .paint-swatches button{width:36px;height:36px;flex:0 0 36px;padding:4px;border:1px solid transparent;border-radius:50%;transition:border-color .3s,transform .4s cubic-bezier(.2,.8,.2,1);background:transparent}
.roadster-module .paint-swatches button span{display:block;width:100%;height:100%;border-radius:50%;background:linear-gradient(140deg,#ffffffb3,transparent 36%,#0007 75%),var(--swatch);box-shadow:inset 0 0 0 1px #ffffff30,0 3px 9px #0006}
.roadster-module .paint-swatches button[aria-pressed=true]{border-color:#e1edf5}
.roadster-module .paint-swatches button:hover{transform:translateY(-3px) scale(1.06)}
.roadster-module .paint-swatches button:active{transform:scale(.95)}
@media(min-width:741px){
 .roadster-module[data-mode=vehicle] .roadster-stage{height:980px;min-height:980px}
 .roadster-module[data-mode=vehicle] .stage{top:35px;bottom:65px}
 .roadster-module[data-mode=vehicle] .scene-hint{bottom:40px}
}
@media(max-width:900px){
 .ys-home:not(.raptor-course) .hero .raptor-local,.ys-home:not(.raptor-course) .hero .raptor-local:not([data-display=structure]){--home-model-height:clamp(330px,48svh,460px);position:relative!important;width:100%!important;height:auto!important;min-height:0;padding:calc(64px + var(--home-model-height)) 0 22px;overflow:visible}
 .ys-home:not(.raptor-course) .raptor-local canvas,.ys-home:not(.raptor-course) .raptor-local:not([data-display=structure]) canvas{top:64px;height:var(--home-model-height)!important;left:0;width:100%}
 .ys-home:not(.raptor-course) .raptor-local .raptor-mode-switch,.ys-home:not(.raptor-course) .raptor-local:not([data-display=structure]) .raptor-mode-switch{top:12px;left:0;right:0;width:100%;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
 .ys-home:not(.raptor-course) .raptor-mode-switch:before,.ys-home:not(.raptor-course) .raptor-mode-switch:after,.ys-home:not(.raptor-course) .raptor-mode-switch button:before{display:none!important}
 .ys-home:not(.raptor-course) .raptor-local .raptor-mode-switch button{height:42px;padding:0;font-size:14px;text-align:center;border-bottom:1px solid #ffffff26}
 .ys-home:not(.raptor-course) .raptor-mode-switch button[aria-pressed=true]{border-color:#d7edf9}
 .ys-home:not(.raptor-course) .raptor-local .principle-panel,.ys-home:not(.raptor-course) .raptor-local:not([data-display=structure]) .principle-panel{position:relative;inset:auto;width:100%;margin:0}
 .ys-home:not(.raptor-course) .principle-steps{display:grid;grid-template-columns:repeat(2,1fr)}
 .ys-home:not(.raptor-course) .principle-steps button{font-size:13px;min-height:43px}
 .ys-home:not(.raptor-course) .principle-steps button:after{display:none}
 .ys-home:not(.raptor-course) .principle-caption{min-height:0;margin-top:10px;padding-top:12px}
 .ys-home:not(.raptor-course) .principle-caption h3{font-size:19px}.ys-home:not(.raptor-course) .principle-caption p{font-size:13px;line-height:1.65}
}
@media(max-width:740px){
 :is(.raptor-mode-switch,.bridge-nav) .mode-label,.roadster-module .system-nav strong{transform-origin:center}
 .roadster-module .intro>:not(.vehicle-tools):not(.paint-picker){display:none!important}
 .roadster-module .intro .paint-picker:not([hidden]){display:block!important;margin:0 0 12px;max-width:none}
 .roadster-module .paint-heading{margin-bottom:5px}.roadster-module .paint-swatches{gap:10px}
 .roadster-module .paint-swatches button{width:38px;height:38px;flex-basis:38px}
}
@media(prefers-reduced-motion:reduce){
 :is(.raptor-mode-switch,.bridge-nav) .mode-label,.roadster-module .system-nav strong,.roadster-module,.roadster-module .paint-swatches button{transition:none;transform:none!important}
}

/* Homepage labels sit beside their left rail; lesson navigation uses a right rail. */
@media(min-width:901px){
 .ys-home:not(.raptor-course) .raptor-local .raptor-mode-switch button{text-align:left}
 .ys-home:not(.raptor-course) .raptor-mode-switch .mode-label{transform-origin:left center}
}
@media(min-width:741px){
 .roadster-module .system-nav{width:138px;padding:0 16px 0 0;border-left:0;border-right:1px solid #ffffff28}
 .roadster-module .system-nav button[aria-current]:before{left:auto;right:-18px;top:19px;bottom:19px}
 .roadster-module .system-nav button{position:relative;text-align:right}
 .roadster-module[data-paint-view=true] .stage{left:20.5%;width:68%}
}
/* Compact course windows: three visible cards in a horizontal collection. */
.ys-home .home-course-section{padding:70px 0 52px}
.ys-home .home-course-heading{margin-bottom:30px}
.ys-home .home-course-grid{display:flex;gap:20px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scrollbar-width:none;margin:-8px 0 -16px;padding:8px 0 16px}.ys-home .home-course-grid::-webkit-scrollbar{display:none}
.ys-home .home-course-card{flex:0 0 calc((100% - 60px)/3.3333333333);scroll-snap-align:start;background:#06080b;border:0;border-radius:24px;box-shadow:0 5px 24px #10172509;overflow:hidden}
.ys-home .home-course-card .home-course-window{display:block;position:relative;height:450px;isolation:isolate;color:#f5f5f7}
.ys-home .home-course-media{position:absolute;inset:0;aspect-ratio:auto;height:100%;width:100%;background:#06080b;z-index:-2}
.ys-home .home-course-media img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.ys-home .home-course-card .home-course-window:after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,#05070b80,transparent 42%,#04060a00 72%,#04060a80);pointer-events:none}
.ys-home .home-course-copy{position:absolute;inset:0;padding:27px;display:flex;flex-direction:column;gap:0;align-items:flex-start}
.ys-home .home-course-category{color:#acb5c1;font-size:11px;font-weight:400;margin:0 0 10px;letter-spacing:.06em}
.ys-home .home-course-copy h3{font-size:27px;line-height:1.25;letter-spacing:-.025em;color:#f7f8fb;margin:0}
.ys-home .home-course-summary{min-height:0;max-width:100%;margin:10px 0 0;font-size:12px;color:#b7c0cc;line-height:1.7}
.ys-home .home-course-action{margin:auto 0 0;padding:9px 14px 9px 16px;border:1px solid #d1e6ff38;background:#19232d9c;border-radius:999px;color:#e4f0ff;gap:18px;font-size:12px;backdrop-filter:blur(12px);transition:background .3s,border-color .3s}
.ys-home .home-course-action span{display:inline-block;background:none;width:auto;height:auto;color:inherit;line-height:1;transition:transform .35s}
.ys-home .home-course-card[data-course=roadster] .home-course-media img{object-fit:contain;object-position:center 65%}
.ys-home .home-course-card[data-course=raptor] .home-course-media{background:radial-gradient(ellipse 43% 4% at 50% 93%,#7b9eaf40,transparent 85%),radial-gradient(ellipse 74% 60% at 57% 64%,#263642 0%,#111c25 42%,#060a10 75%,#040609 100%)}
.ys-home .home-course-card[data-course=raptor] .home-course-media:before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 45% 54% at 15% 55%,#6387a112,transparent 85%),linear-gradient(135deg,transparent 45%,#66829a08 64%,transparent 80%);pointer-events:none}
.ys-home .home-course-card[data-course=raptor] .home-course-media img{position:absolute;inset:0;height:100%;width:100%;object-fit:cover}
.ys-home .home-course-card[data-course=raptor] .home-course-window:after{background:linear-gradient(180deg,#02040922,transparent 60%,#02040933)}
.ys-home .home-course-card[data-course=beam] .home-course-window:after{background:linear-gradient(180deg,#dcecf360,transparent 43%,#14344d14 75%,#07152277)}
.ys-home .home-course-card[data-course=beam] .home-course-category{color:#36566b}
.ys-home .home-course-card[data-course=beam] h3{color:#102e43}
.ys-home .home-course-card[data-course=beam] .home-course-summary{color:#284d65}
@media(hover:hover){
 .ys-home .home-course-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px #1521311c}
 .ys-home .home-course-card:hover .home-course-media img{transform:scale(1.025)}
 .ys-home .home-course-card:hover .home-course-action{background:#25425bc4;border-color:#bcddfc66}
 .ys-home .home-course-card:hover .home-course-action span{background:none;transform:translate(2px,-2px)}
}
@media(max-width:900px) and (min-width:741px){.ys-home .home-course-copy{padding:22px}.ys-home .home-course-copy h3{font-size:24px}.ys-home .home-course-card .home-course-window{height:410px}}
@media(max-width:740px){
 .ys-home .home-course-section{padding:48px 0 32px}
 .ys-home .home-course-heading{margin-bottom:24px}
 .ys-home .home-course-grid{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;margin-inline:-20px;padding:0 20px 16px;scrollbar-width:thin;scrollbar-color:#b2b8c0 transparent}
 .ys-home .home-course-card{flex:0 0 87%;width:auto;border-radius:22px;margin:0!important;scroll-snap-align:center}
 .ys-home .home-course-card .home-course-window{height:410px}
 .ys-home .home-course-copy{padding:25px}
 .ys-home .home-course-copy h3{font-size:26px}
}
/* Course navigation and the two upcoming directions. */
.ys-home .home-course-carousel{position:relative}
.ys-home .home-course-controls{display:flex;gap:10px;justify-content:flex-end;align-items:center;margin-top:22px}
.ys-home .home-course-position{font-size:12px;color:#777b83;letter-spacing:.05em;margin-right:10px;font-variant-numeric:tabular-nums}
.ys-home .home-course-controls button{display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:50%;background:#e5e5e9;color:#383b43;cursor:pointer;transition:background .25s,transform .3s,opacity .25s}
.ys-home .home-course-controls button:hover:not(:disabled){background:#d5d6dc;transform:scale(1.06)}
.ys-home .home-course-controls button:disabled{opacity:.32;cursor:default}
.ys-home .home-course-controls svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ys-home .home-course-grid:focus-visible{outline:2px solid #0071e3;outline-offset:5px;border-radius:24px}
.ys-home .home-course-status{display:inline-flex;align-items:center;gap:8px;margin:auto 0 0;padding:10px 14px;border:1px solid #ffffff25;border-radius:999px;background:#1b25358c;color:#d5dfe9;font-size:12px;backdrop-filter:blur(12px)}
.ys-home .home-course-status i{width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.7}
.ys-home .home-course-card.is-coming{min-height:0;cursor:default}
.ys-home .home-course-card[data-course=beam]{background:#c5e3f4}
.ys-home .home-course-card[data-course=wind-energy]{background:#c9dfdf}
.ys-home .home-course-card[data-course=wind-energy] h3{color:#153737}
.ys-home .home-course-card[data-course=wind-energy] .home-course-summary{color:#375b5b}
.ys-home .home-course-card[data-course=wind-energy] .home-course-window:after{background:linear-gradient(180deg,#e9f5ef55,transparent 45%,#16353308 70%,#09272738)}
@media(min-width:1440px){
 .ys-home .home-course-controls button{position:absolute;top:calc(50% - 42px)}
 .ys-home .home-course-prev{left:-60px}.ys-home .home-course-next{right:-60px}
 .ys-home .home-course-controls{justify-content:center;margin-top:22px}.ys-home .home-course-position{margin-right:0}
}
@media(max-width:740px){.ys-home .home-course-controls{margin-top:15px}.ys-home .home-course-card{scroll-snap-align:center}.ys-home .home-course-grid{scrollbar-width:none}}
@media(prefers-reduced-motion:reduce){.ys-home .home-course-card,.ys-home .home-course-media img,.ys-home .home-course-controls button{transition:none;transform:none!important}}
/* Shared footer: restrained brand signature, clear link groups, centered filing. */
.site-footer{padding:56px 0 24px!important;background:#111113;color:#9c9ca3}
.site-footer .footer-content,.site-footer .footer-legal{width:min(1260px,calc(100% - var(--site-gutter)*2));margin-inline:auto}
.site-footer .footer-content{display:grid;grid-template-columns:1.65fr 1fr 1fr 1.25fr;gap:48px;align-items:start;padding:0 0 44px}
.site-footer .footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:20px}
.site-footer .footer-brand .footer-logo{display:block;position:static;width:52px;height:35px;overflow:visible;flex:none;margin:0}
.site-footer .footer-brand .footer-logo img{display:block;position:static;max-width:100%;width:52px;height:35px;object-fit:contain;filter:none;mix-blend-mode:normal}
.site-footer .footer-brand-copy strong{display:block;font-size:17px;letter-spacing:.08em;font-weight:500;color:#ededf0}
.site-footer .footer-brand-copy p{font-size:13px;line-height:1.7;margin:9px 0 0;color:#909097}
.site-footer .footer-column{display:flex;flex-direction:column;gap:11px;grid-column:auto;font-size:12px;line-height:1.6}
.site-footer .footer-column h3{font-size:12px;line-height:1.6;color:#efeff2;margin:0 0 8px;font-weight:500}
.site-footer .footer-column p{margin:0 0 1px;font-size:12px;line-height:1.9;color:#9c9ca3}
.site-footer .footer-column a{color:#9c9ca3;transition:color .25s}
.site-footer .footer-column a:hover{color:#f5f5f7}
.site-footer .footer-legal{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff12;padding-top:20px;font-size:11px;color:#74747d}
.site-footer .footer-legal>div{display:flex;flex-wrap:wrap;gap:22px;font-size:11px}
.site-footer .footer-icp{width:min(1260px,calc(100% - var(--site-gutter)*2));margin:19px auto 0;text-align:center;font-size:11px;color:#86868e}
.footer-icp a{color:inherit;text-decoration:none}.footer-icp a:hover{color:#d3d3d8;text-decoration:underline}
@media(max-width:900px){.site-footer .footer-content{gap:30px;grid-template-columns:1.3fr 1fr 1fr}.site-footer .footer-brand{grid-column:1/-1;flex-direction:row;align-items:center;gap:22px}.site-footer .footer-brand-copy p{margin-top:5px}}
@media(max-width:600px){
 .site-footer{padding-top:36px!important}.site-footer .footer-content{grid-template-columns:1fr 1fr;gap:30px 20px;padding-bottom:28px}
 .site-footer .footer-address{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:8px 20px}.site-footer .footer-address h3{grid-column:1/-1;margin-bottom:3px}.site-footer .footer-address p{grid-row:2/4}.site-footer .footer-address>a:last-child{grid-column:2}
 .site-footer .footer-legal{flex-direction:column;gap:14px;font-size:10px}.site-footer .footer-legal>div{gap:18px;font-size:10px}.site-footer .footer-icp{font-size:11px;margin-top:23px}
}
/* A little more atmospheric light, without lifting the black centre. */
.ys-home:not(.raptor-course) .hero:before{background:radial-gradient(ellipse 51% 72% at -8% 64%,#3657808a,transparent 76%),radial-gradient(ellipse 44% 67% at 111% 33%,#77513f70,transparent 77%),radial-gradient(ellipse 35% 35% at 84% 110%,#284d5744,transparent 80%)}

@media(max-width:740px){.ys-home:not(.raptor-course) .hero:before{background:radial-gradient(ellipse 80% 62% at -27% 55%,#36578070,transparent 76%),radial-gradient(ellipse 65% 57% at 127% 64%,#77513f60,transparent 80%)}}

/* Reveal one third of the next direction through a progressive frosted edge. */
.ys-home .home-course-carousel:before,.ys-home .home-course-carousel:after{content:'';position:absolute;right:-1px;top:8px;width:clamp(76px,7.5%,96px);height:450px;clip-path:inset(0);pointer-events:none;z-index:3;transition:opacity .3s}
.ys-home .home-course-carousel:before{backdrop-filter:blur(3px) saturate(.95);-webkit-backdrop-filter:blur(3px) saturate(.95);mask-image:linear-gradient(90deg,transparent,#0003 25%,#0009 70%,#000);-webkit-mask-image:linear-gradient(90deg,transparent,#0003 25%,#0009 70%,#000)}
.ys-home .home-course-carousel:after{background:linear-gradient(90deg,#f5f5f700 0%,#f5f5f704 35%,#f5f5f718 65%,#f5f5f766 88%,#f5f5f7 100%);backdrop-filter:blur(8px) saturate(.88);-webkit-backdrop-filter:blur(8px) saturate(.88);mask-image:linear-gradient(90deg,transparent 8%,#0002 35%,#0008 65%,#000 96%);-webkit-mask-image:linear-gradient(90deg,transparent 8%,#0002 35%,#0008 65%,#000 96%)}
.ys-home .home-course-carousel.is-end:before,.ys-home .home-course-carousel.is-end:after{opacity:0}
@media(max-width:900px){.ys-home .home-course-carousel:before,.ys-home .home-course-carousel:after{height:410px}}
@media(max-width:740px){.ys-home .home-course-carousel:before,.ys-home .home-course-carousel:after{right:-20px;width:48px}}

.ys-home .home-course-edge-left{position:absolute;left:-1px;top:8px;width:clamp(76px,7.5%,96px);height:450px;clip-path:inset(0);pointer-events:none;z-index:3;transform:scaleX(-1);opacity:0;transition:opacity .3s}
.ys-home .has-previous .home-course-edge-left{opacity:1}
.ys-home .home-course-edge-left:before,.ys-home .home-course-edge-left:after{content:'';position:absolute;inset:0;pointer-events:none}
.ys-home .home-course-edge-left:before{backdrop-filter:blur(3px) saturate(.95);-webkit-backdrop-filter:blur(3px) saturate(.95);mask-image:linear-gradient(90deg,transparent,#0003 25%,#0009 70%,#000);-webkit-mask-image:linear-gradient(90deg,transparent,#0003 25%,#0009 70%,#000)}
.ys-home .home-course-edge-left:after{background:linear-gradient(90deg,#f5f5f700 0%,#f5f5f704 35%,#f5f5f718 65%,#f5f5f766 88%,#f5f5f7 100%);backdrop-filter:blur(8px) saturate(.88);-webkit-backdrop-filter:blur(8px) saturate(.88);mask-image:linear-gradient(90deg,transparent 8%,#0002 35%,#0008 65%,#000 96%);-webkit-mask-image:linear-gradient(90deg,transparent 8%,#0002 35%,#0008 65%,#000 96%)}
@media(max-width:900px){.ys-home .home-course-edge-left{height:410px}}
@media(max-width:740px){.ys-home .home-course-edge-left{left:-20px;width:48px}}

@media(hover:hover){.ys-home .home-course-card:hover{transform:none}}
@media(max-width:740px){.ys-home .home-course-carousel:before,.ys-home .home-course-carousel:after,.ys-home .home-course-edge-left{top:0}}
/* Sampled from the supplied Apple screenshot: #f5f5f7 and #ffffff. */
.ys-home .home-course-section{background:#f5f5f7}
.ys-home main>.closing-cta{background:#fff}

/* Compact horizontal brand signature and filing beside copyright. */
.site-footer .footer-brand{flex-direction:row;align-items:center;gap:18px}
.site-footer .footer-brand-copy strong{font-size:16px}.site-footer .footer-brand-copy p{margin-top:5px;font-size:12px}
.site-footer .footer-legal .footer-copyright{align-items:center;gap:14px;font-size:11px}
.site-footer .footer-legal .footer-icp{width:auto;margin:0;text-align:left;font-size:11px;white-space:nowrap;color:inherit}
.site-footer .footer-legal-divider{width:1px;height:12px;background:#ffffff26}
@media(max-width:900px){.site-footer .footer-legal{flex-wrap:wrap}.site-footer .footer-legal .footer-copyright{gap:12px}}
@media(max-width:600px){.site-footer .footer-legal .footer-copyright{flex-direction:column;align-items:flex-start;gap:8px}.site-footer .footer-legal-divider{display:none}.site-footer .footer-legal .footer-copyright,.site-footer .footer-legal .footer-icp{font-size:10px}}

/* Additional course directions retain the same editorial windows. */
.ys-home .home-course-card[data-course=marine] h3{color:#102e43}
.ys-home .home-course-card[data-course=marine] .home-course-summary{color:#284d65}
.ys-home .home-course-card[data-course=marine] .home-course-window:after{background:linear-gradient(180deg,#dcecf345,transparent 44%,#07152233)}
.ys-home .home-course-card[data-course=materials] h3{color:#343431}
.ys-home .home-course-card[data-course=materials] .home-course-summary{color:#5b5b56}
.ys-home .home-course-card[data-course=materials] .home-course-window:after{background:linear-gradient(180deg,#faf8f333,transparent 45%,#36352e12)}
.ys-home .home-course-card[data-course=materials] .home-course-status{background:#343d48b3;color:#f5f6f8}

.ys-home .home-course-card[data-course=raptor] .home-course-media:before{display:none}
.ys-home .home-course-card[data-course=marine],.ys-home .home-course-card[data-course=marine] .home-course-media{background:#b7d5e8}
.ys-home .home-course-card[data-course=materials],.ys-home .home-course-card[data-course=materials] .home-course-media{background:#eeeae4}

/* Source: assets/gear-lab.css */
.gear-page{--lab-bg:#101b22;--lab-text:#dce7ea;--lab-muted:#9eb1bb;--lab-line:#8eacbb30;--lab-accent:#c4dbc9;background:var(--lab-bg);color:var(--lab-text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif}.gear-page *{box-sizing:border-box}.gear-page [hidden]{display:none!important}.gear-page #main{max-width:none;padding:0;margin:0}.gear-page .ys-header{position:sticky;top:0;z-index:100}.gear-page button,.gear-page select,.gear-page input,.gear-page textarea{font:inherit}.gear-page button{cursor:pointer}.gear-page button:disabled{cursor:default;opacity:.46}.gear-page button:focus-visible,.gear-page a:focus-visible,.gear-page input:focus-visible,.gear-page textarea:focus-visible,.gear-page select:focus-visible,.gear-page summary:focus-visible{outline:2px solid #8cbba0;outline-offset:4px}.gear-page a{color:inherit}.gear-page .ys-brand img.ys-official-logo,.gear-page .footer-logo img{filter:none;mix-blend-mode:normal}.gear-page .skip-content{position:fixed;top:-90px;z-index:200}.gear-page .skip-content:focus{top:0}.lab-topbar{display:flex;gap:22px;align-items:center;padding:17px max(var(--site-gutter,24px),calc((100% - 1260px)/2));border-bottom:1px solid var(--lab-line);font-size:12px;color:#b2c1c8;background:#142029}.lab-topbar>span{padding-left:22px;border-left:1px solid var(--lab-line)}.lab-topbar>div{display:flex;gap:24px;margin-left:auto}.lab-topbar button,.lab-tools button{color:inherit;background:none;border:0;padding:4px 0;font-size:12px}.lab-wrap{max-width:1260px;width:calc(100% - var(--site-gutter,24px)*2);margin:auto}.lab-heading{display:flex;justify-content:space-between;gap:25px;align-items:flex-end;padding:36px 0 28px}.eyebrow{font-size:11px;letter-spacing:.12em;color:#a0b6bd;margin:0 0 14px}.lab-heading h1{font-size:34px;font-weight:500;letter-spacing:-.025em;margin:0;line-height:1.35}.lab-heading>div>p:last-child{font-size:13px;line-height:1.8;color:#96acb7;margin:12px 0 0}.lab-tools{display:flex;gap:20px;align-items:center;color:#94a9b4;font-size:11px}.lab-tools>span:before{content:"";display:inline-block;width:5px;height:5px;margin-right:7px;background:#a5c7b2;border-radius:50%}.journey-track{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--lab-line);margin-bottom:26px}.journey-track button{display:flex;align-items:center;gap:14px;background:none;border:0;border-bottom:2px solid transparent;color:#7c949f;padding:15px 8px 18px;text-align:left}.journey-track span{font:16px ui-monospace,monospace;color:#6d8793}.journey-track b{font-size:14px;font-weight:400}.journey-track button[aria-current=step]{border-color:#c4dbc9;color:#dce9df}.journey-track button[aria-current=step] span{color:#c4dbc9}.journey-track button.is-done span{color:#abcbb7}.experiment-layout{display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:24px;align-items:start}.observation{min-width:0}.scene-frame{height:490px;border:1px solid var(--lab-line);border-radius:12px;position:relative;overflow:hidden;background:#101a24}.scene-frame>canvas{display:block;width:100%;height:100%;touch-action:none;cursor:grab}.scene-heading{position:absolute;top:24px;left:24px;right:24px;display:flex;justify-content:space-between;align-items:start;pointer-events:none;gap:14px}.scene-heading span{font-size:11px;line-height:1.5;color:#9db3c0}.scene-heading strong{display:block;font-weight:400;font-size:16px;color:#ccdae0;margin-top:8px}.scene-heading .scene-badge{font-size:10px;padding:5px 9px;border:1px solid #b5ccc133;border-radius:4px;color:#b5caba;background:#17293188;white-space:nowrap}.view-tabs{position:absolute;top:97px;left:24px;display:flex;gap:4px;background:#0d1820a8;padding:4px;border:1px solid var(--lab-line);border-radius:6px}.view-tabs button{border:0;background:none;color:#8ea7b5;font-size:11px;padding:7px 10px;border-radius:3px}.view-tabs button[aria-pressed=true]{color:#e1e9ed;background:#45606c6b}.scene-bottom{position:absolute;bottom:20px;left:24px;right:24px;display:flex;justify-content:space-between;gap:18px;align-items:center}.scene-bottom>span{font-size:10px;color:#8da5b5;line-height:1.6;max-width:75%}.scene-bottom button{border:1px solid var(--lab-line);background:#17303f55;color:#adc1cc;border-radius:20px;padding:8px 11px;font-size:10px;white-space:nowrap}.depth-points{position:absolute;bottom:70px;left:20px;right:20px;display:flex;justify-content:center;gap:8px}.depth-points button{background:#142532d9;border:1px solid #a0bdce33;color:#aac2d0;border-radius:5px;font-size:11px;padding:8px 13px}.depth-points button[aria-pressed=true]{color:#efc58b;border-color:#bf9d6777}.observation-caption{display:flex;gap:13px;align-items:flex-start;padding:18px 5px;color:#a6bcc7}.observation-caption p{font-size:13px;line-height:1.85;margin:0;max-width:600px}.caption-icon{color:#c2d9c9;font-size:19px;line-height:1.6}.action-card{background:#e3e8e6;border:1px solid #f0f3ef;border-radius:12px;padding:28px;color:#233b40;min-width:0;box-shadow:0 12px 35px #0002}.step-label{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px;color:#648179}.step-label>span{letter-spacing:.06em}.step-label>button{background:none;border:0;color:#657c77;font-size:10px;padding:4px 0}.action-card h2{font-size:27px;font-weight:500;line-height:1.45;letter-spacing:-.035em;margin:20px 0 14px}.action-card h2:focus{outline:none}.step-description{font-size:14px;line-height:1.95;color:#596f70;margin:0 0 23px}.next-action{border-top:1px solid #506e5d26;padding-top:22px;margin-top:25px}.primary-action,.secondary-action{border-radius:6px;min-height:46px;padding:12px 17px;border:1px solid transparent;font-size:13px;text-align:center;line-height:1.5;transition:background .2s}.primary-action{background:#244d43;color:#f0f5ee;display:flex;align-items:center;justify-content:space-between;gap:16px}.primary-action:hover:not(:disabled){background:#306251}.next-action .primary-action{width:100%;font-size:14px;min-height:50px}.next-action>p{font-size:11px;line-height:1.8;color:#70847e;margin:12px 0 0}.secondary-action{background:transparent;border-color:#8aaba34d;color:inherit}.secondary-action:hover{background:#ffffff09}.step-result{margin-top:20px;border-left:2px solid #8caa92;background:#d4ddd650;padding:15px 16px;border-radius:0 5px 5px 0}.step-result[data-tone=warning]{border-color:#b09060;background:#d2c7b232}.step-result>span{font-size:10px;letter-spacing:.06em;color:#708776}.step-result h3{font-size:16px;line-height:1.7;font-weight:500;margin:6px 0}.step-result p{font-size:12px;line-height:1.9;color:#61776e;margin:7px 0 0}.step-result .big-result{font-size:42px;font-weight:400;line-height:1.25;color:#355948;margin:10px 0}.big-result small{font-size:12px;color:#6b8073;margin-left:6px}.plain-fact{display:flex;justify-content:space-between;gap:15px;font-size:12px;padding:14px 0;border-bottom:1px solid #728d801f;line-height:1.7}.plain-fact span{color:#6f8179}.plain-fact b{font-weight:500;text-align:right}.process-recipe{border:1px solid #708d762d;border-radius:7px;padding:14px 16px;background:#f5f7f230;margin:16px 0}.process-recipe>span{font-size:10px;color:#819181}.process-recipe p{font-size:13px;line-height:1.8;margin:7px 0;color:#466657}.process-recipe small{font-size:11px;line-height:1.8;color:#7b8d7e;display:block}.choice-list{display:grid;gap:9px}.choice-list button,.sample-choice{width:100%;display:flex;align-items:flex-start;gap:12px;padding:14px;background:#eef2ed;border:1px solid #a7b9aa72;border-radius:6px;color:#334d43;text-align:left;font-size:13px;line-height:1.65}.choice-list button:before,.sample-choice:before{content:"";width:15px;height:15px;border:1px solid #9daf9e;border-radius:50%;flex-shrink:0;margin-top:3px}.choice-list button[aria-pressed=true],.sample-choice[aria-pressed=true]{border-color:#46745a;background:#d4e0d3}.choice-list button[aria-pressed=true]:before,.sample-choice[aria-pressed=true]:before{border:4px solid #416e55;background:#f0f4eb}.choice-list button b,.sample-choice b{font-size:13px;display:block;font-weight:500}.choice-list button small,.sample-choice small{font-size:11px;color:#708373;display:block;line-height:1.8;margin-top:3px}.control-title{font-size:12px;font-weight:500;margin:20px 0 10px;line-height:1.8}.time-options{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.time-options button{padding:13px 4px;background:#eef2ed;color:#557061;border:1px solid #9bad9e73;border-radius:6px;font-size:16px}.time-options button[aria-pressed=true]{border-color:#4c775b;background:#d3e0d2;color:#355b40}.time-options button small{font-size:10px;display:block;margin-top:4px}.prediction-label{font-size:12px;color:#536e5e;display:block;margin-top:22px}.prediction-label select,.free-controls select{display:block;width:100%;margin-top:10px;padding:11px 8px;border-radius:5px;border:1px solid #95a897;background:#eef3ed;color:#334f3e;font-size:12px;white-space:normal}.mini-definition{padding:12px 0;font-size:11px;color:#738879;line-height:1.85}.progress-caption{font-size:13px;color:#6c826f;line-height:1.85}.comparison-bars{display:grid;gap:18px;padding:20px 21px;background:#192830;border:1px solid var(--lab-line);border-radius:8px}.comparison-bars>p{font-size:13px;color:#c1d2d9;margin:0 0 2px}.bar-label{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:#9db5bf;margin-bottom:10px}.bar-track{height:7px;border-radius:5px;background:#567c832b;position:relative}.bar-track>i{height:100%;display:block;border-radius:5px;background:#a5c6b3}.bar-track>em{position:absolute;left:55%;height:15px;top:-4px;border-left:1px dashed #dfbd83}.comparison-bars>small{font-size:10px;line-height:1.7;color:#93aeb9}.result-pills{display:grid;grid-template-columns:1fr 1fr;gap:10px}.result-pills>div{background:#1a2932;border:1px solid var(--lab-line);border-radius:7px;padding:18px}.result-pills span{font-size:11px;display:block;color:#8eaab8;margin-bottom:10px}.result-pills b{font-size:23px;font-weight:400;color:#bad1c6}.result-pills small{font-size:11px;font-weight:400;color:#8ca6b3}.mini-link{border:0;background:none;color:#43705b;font-size:12px;padding:9px 0;text-decoration:underline;text-underline-offset:4px}.delivery-note{display:block;font-size:12px;color:#597564;margin:22px 0 10px}.delivery-note textarea{display:block;width:100%;padding:13px;margin-top:10px;border:1px solid #95a897;background:#f1f4ee;color:#334f3e;resize:vertical;min-height:110px;border-radius:6px;font-size:12px;line-height:1.9}.delivery-note textarea::placeholder{color:#8a9d8d}.word-count{font-size:10px;color:#7c8f7d;display:block;margin:7px 0}.sample-choices{display:grid;gap:8px}.sample-choice{padding:10px 12px}.sample-choice>span{flex:1}.sample-choice em{font-style:normal;font-size:10px;color:#78907d;margin-top:3px;white-space:nowrap}.free-controls{display:grid;gap:18px;margin:20px 0}.free-controls label{font-size:12px;color:#526f5c}.free-controls label output{float:right}.free-controls input[type=range]{width:100%;accent-color:#436f50;margin-top:16px}.free-controls small{display:block;margin-top:7px;font-size:10px;color:#809380;line-height:1.8}#action-feedback{color:#8b6539;font-size:12px;line-height:1.85;margin:12px 0}#action-feedback:empty{display:none}.completion-mark{font-size:42px;color:#719774;width:70px;height:70px;border:1px solid #a5bda9;border-radius:50%;display:grid;place-items:center;margin:10px 0 24px}.explore-more{margin:28px 0 45px}.explore-more>details{border-top:1px solid var(--lab-line)}.explore-more summary{display:flex;justify-content:space-between;gap:20px;align-items:center;cursor:pointer;padding:23px 3px;color:#adc1c8;font-size:13px;list-style:none}.explore-more summary::-webkit-details-marker{display:none}.explore-more summary b{font-size:13px;font-weight:400;display:block}.explore-more summary small{font-size:11px;color:#748f9d;display:block;margin-top:6px}.explore-more summary i{font-style:normal;color:#7895a2}.explore-more details[open]>summary i{transform:rotate(45deg)}.explore-more em{font:11px ui-monospace;color:#8eaba8;margin-left:8px}.detail-content{padding:12px 3px 28px}.analysis-toolbar{display:flex;justify-content:space-between;gap:25px;margin:8px 0 25px}.analysis-toolbar h2{font-size:18px;font-weight:400;margin:0}.analysis-toolbar p{font-size:12px;color:#8da7b2;line-height:1.85;max-width:600px;margin:12px 0 0}.analysis-toolbar label{font-size:11px;color:#809ca9;min-width:190px}.analysis-toolbar select{display:block;width:100%;background:#172b35;color:#b4ccd3;border:1px solid var(--lab-line);font-size:12px;padding:10px;margin-top:10px;border-radius:4px}.inspection-checks{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0}.inspection-checks>div{padding:18px;background:#172730;border:1px solid var(--lab-line);border-radius:6px}.inspection-checks span{display:block;font-size:11px;color:#8ba9b6}.inspection-checks b{display:block;font-size:22px;font-weight:400;margin:12px 0;color:#c0d4d8}.inspection-checks small{font-size:10px;line-height:1.8;color:#c4ad87}.inspection-checks .pass small{color:#a2c9b0}.depth-slider{display:flex;align-items:center;gap:15px;font-size:12px;color:#9ab4c0;flex-wrap:wrap;margin-top:26px;max-width:620px}.depth-slider output{margin-left:auto}.depth-slider input{width:100%;accent-color:#bcd2ba}.depth-reading{font-size:12px;line-height:1.8;margin:18px 0;color:#b6ccd0}.chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px;margin-top:30px}.chart-grid>div{min-width:0}.chart-grid h3{font-size:14px;font-weight:400;color:#b5cbd4}.chart-grid svg{display:block;width:100%;height:auto}.chart-grid svg text{fill:#829eaa;font-size:10px;font-family:ui-monospace,system-ui}.current-line{stroke:#acd2dc;stroke-width:2.2;fill:none}.comparison-line{stroke:#d4b57c;stroke-width:1.8;stroke-dasharray:6 4;fill:none}.chart-legend{display:flex;gap:10px;align-items:center;font-size:11px;color:#8eaab7}.chart-legend i{display:block;width:20px;height:2px;background:#acd2dc}.chart-legend i:nth-of-type(2){background:#d4b57c;margin-left:15px}#comparison-note{font-size:12px;color:#9db8be;line-height:1.85}.measurement-tags{display:flex;flex-wrap:wrap;gap:10px;font-size:11px;color:#8eacb9;margin-top:18px}.measurement-tags>span{border:1px solid var(--lab-line);border-radius:4px;padding:8px 11px}.sample-tray{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:22px}.sample-card{padding:18px;border:1px solid var(--lab-line);border-radius:7px;background:#172933;color:#b0c5ce;text-align:left}.sample-card[aria-pressed=true]{border-color:#b7cbb36e;background:#263732}.sample-card b{font-size:16px;font-weight:400}.sample-card>span{font-size:10px;float:right;color:#93b8a7}.sample-card small{display:block;font-size:11px;line-height:1.85;color:#87a2ae;margin-top:13px}.quiet-note{color:#809ba8;font-size:11px;line-height:1.85}.gear-method>div{padding:10px 3px 25px}.gear-method h3{font-size:18px;font-weight:400}.gear-method p{font-size:12px;color:#809ba8;line-height:2}.gear-method a{font-size:12px;line-height:1.9;display:inline-block;margin:12px 20px 0 0;color:#b2c9d0}.gear-page .site-footer{background:#0b161e;border-top:1px solid var(--lab-line)}#gear-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:150;background:#dce8dd;color:#315142;box-shadow:0 12px 35px #0003;max-width:calc(100% - 35px);width:max-content;border:1px solid #adbfac;border-radius:6px;padding:13px 20px;font-size:13px;line-height:1.7;pointer-events:none}#reset-dialog{color:#263e34;background:#e4e9df;border:1px solid #acb9a8;border-radius:10px;max-width:440px;width:calc(100% - 35px);padding:28px}#reset-dialog::backdrop{background:#07111bbf;backdrop-filter:blur(6px)}#reset-dialog h2{font-size:24px;font-weight:500}#reset-dialog p{color:#6b7e6c;line-height:1.85;font-size:13px}#reset-dialog>div{display:flex;gap:12px;justify-content:flex-end;margin-top:24px}.micro-panel{position:absolute;top:85px;left:20px;right:20px;bottom:58px;border:1px solid var(--lab-line);border-radius:8px;background:#11222fee;padding:20px;z-index:5;overflow:auto}.micro-panel>button{position:absolute;right:10px;top:7px;background:transparent;border:0;font-size:24px;color:#9eb8c6}.micro-panel>span{font-size:11px;color:#a0b9c5}.micro-panel canvas{display:block;width:100%;height:155px;margin:17px 0 10px}.micro-panel h3{font-size:14px;font-weight:400;margin:12px 0}.micro-panel p{font-size:11px;color:#8da9b8;line-height:1.9;margin:8px 0}.process-animation{position:absolute;left:24px;right:24px;bottom:62px;padding:22px;background:#122730ed;border:1px solid #bdd4ae55;border-radius:8px;z-index:6}.process-animation>div:first-child{display:flex;justify-content:space-between;font-size:14px;color:#c5d9c6}.process-animation b{font-size:12px;font-weight:400}.progress-line{height:4px;background:#9fbdac29;margin:18px 0}.progress-line i{height:100%;width:0;display:block;background:#c6dcb7}.process-animation p{font-size:12px;line-height:1.8;color:#9eb8b5}.process-animation button{background:none;border:1px solid #a4c3b444;padding:7px 17px;color:#bdd1ca;border-radius:4px;font-size:11px}.time-note{font-size:9px;color:#79969d;margin-left:14px}#webgl-error{position:absolute;left:25px;right:25px;top:50%;color:#bdced7;text-align:center;font-size:13px;line-height:1.85}
/* The course introduction is independent of the site's unpublished welcome page. */
.journey-intro{position:fixed;inset:48px 0 0;background:radial-gradient(ellipse at 65% 54%,#263747 0,#101c28 45%,#09131d 90%);z-index:90;display:flex;align-items:center;padding:50px max(5.5vw,calc((100vw - 1260px)/2));overflow:auto}.intro-open{overflow:hidden}.intro-copy{position:relative;z-index:2;max-width:720px;padding:20px 0}.intro-copy h1{font-size:clamp(42px,4.6vw,70px);font-weight:500;line-height:1.4;letter-spacing:-.04em;margin:30px 0;color:#e1e8e5}.intro-copy p:not(.eyebrow){font-size:14px;line-height:2.2;color:#a6bbc5;margin:23px 0;max-width:660px}.intro-copy .intro-lead{font-size:19px!important;line-height:2!important;color:#c8d7dd!important;margin:32px 0!important}.intro-copy>small{font-size:11px;color:#718d9d}.intro-actions{display:flex;gap:28px;align-items:center;margin:30px 0 28px}.intro-actions .gear-primary{min-width:230px;border:0;border-radius:5px;padding:17px 20px;display:flex;justify-content:space-between;gap:25px;font-size:14px;background:#c1d6c1;color:#25412f;cursor:pointer}.text-button{background:none;border:0;color:#9ab3bf;font-size:12px;padding:12px 0}.intro-orbits{position:absolute;right:7%;top:50%;width:490px;height:490px;transform:translateY(-50%);opacity:.28;display:grid;place-items:center;pointer-events:none}.intro-orbits i{position:absolute;border:1px solid #9bb8c72b;border-radius:50%;inset:0;transform:rotate(-25deg) scaleY(.55)}.intro-orbits i:nth-child(2){transform:rotate(35deg) scaleY(.55)}.intro-orbits i:nth-child(3){transform:rotate(95deg) scaleY(.55)}.intro-orbits>span{text-align:center;color:#acc4d3;font:90px Georgia,serif}.intro-orbits small{display:block;font:10px ui-monospace;letter-spacing:.2em;margin-top:15px}.journey-intro:not([hidden]) .intro-copy>*{animation:story-in 1s both}.intro-copy h1{animation-delay:.12s!important}.intro-copy .intro-lead{animation-delay:.25s!important}.intro-copy>p:nth-of-type(3){animation-delay:.4s!important}.intro-copy>p:nth-of-type(4){animation-delay:.55s!important}.intro-actions{animation-delay:.7s!important}.intro-copy>small{animation-delay:.8s!important}@keyframes story-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media(min-width:1450px){.scene-frame{height:525px}.experiment-layout{grid-template-columns:minmax(0,1fr) 420px}.action-card{padding:32px}.action-card h2{font-size:29px}}
@media(max-width:1050px){.experiment-layout{grid-template-columns:minmax(0,1fr) 350px;gap:18px}.action-card{padding:24px}.action-card h2{font-size:25px}.scene-frame{height:450px}.scene-heading{left:20px;right:20px}.scene-heading strong{font-size:14px}.view-tabs{left:20px}.lab-tools{gap:13px}.lab-tools>span{display:none}}
@media(max-width:780px){.lab-wrap{width:calc(100% - 32px)}.lab-topbar{padding:13px 16px;gap:13px;font-size:11px}.lab-topbar>span{padding-left:13px}.lab-topbar>div{gap:13px}.lab-topbar button{font-size:10px}.lab-topbar>div>a{font-size:10px}.lab-heading{padding:25px 0 18px;align-items:start;gap:10px}.lab-heading h1{font-size:27px}.lab-heading .eyebrow{font-size:10px;margin-bottom:10px}.lab-heading>div>p:last-child{font-size:11px;max-width:270px;line-height:1.8}.lab-tools{display:flex;flex-direction:column;align-items:flex-end;gap:10px;padding-top:3px;flex-shrink:0}.lab-tools button{font-size:10px}.journey-track{margin-bottom:17px}.journey-track button{display:block;text-align:center;padding:12px 3px 13px}.journey-track span{font-size:13px;display:block;margin-bottom:6px}.journey-track b{font-size:11px}.experiment-layout{display:flex;flex-direction:column;gap:12px}.observation,.action-card{width:100%}.scene-frame{height:310px;border-radius:9px}.scene-heading{top:17px;left:17px;right:17px}.scene-heading span{font-size:10px}.scene-heading strong{font-size:13px;margin-top:6px}.scene-heading .scene-badge{font-size:9px;padding:4px 6px}.view-tabs{top:77px;left:17px;padding:3px;gap:2px}.view-tabs button{font-size:10px;padding:5px 8px}.scene-bottom{left:17px;right:17px;bottom:13px;gap:10px}.scene-bottom>span{font-size:8px}.scene-bottom button{font-size:9px;padding:6px 9px}.depth-points{bottom:47px;gap:6px}.depth-points button{font-size:10px;padding:6px 11px}.observation-caption{padding:12px 3px;gap:9px}.observation-caption p{font-size:12px;line-height:1.85}.caption-icon{font-size:17px}.action-card{padding:23px;border-radius:9px}.action-card h2{font-size:25px;margin:17px 0 12px}.step-description{font-size:13px;line-height:1.95;margin-bottom:17px}.step-label{font-size:10px}.step-label>button{font-size:10px}.step-result{padding:13px 15px;margin-top:16px}.step-result h3{font-size:15px}.next-action{padding-top:18px;margin-top:20px}.next-action .primary-action{min-height:48px;font-size:14px}.choice-list button{padding:12px;font-size:13px}.comparison-bars{padding:17px;margin-bottom:3px}.result-pills>div{padding:14px}.result-pills b{font-size:22px}.result-pills span{font-size:10px}.explore-more{margin-top:24px}.explore-more summary{padding:19px 2px}.explore-more summary b{font-size:12px}.explore-more summary small{font-size:10px}.explore-more summary{font-size:12px}.analysis-toolbar{display:block}.analysis-toolbar h2{font-size:17px}.analysis-toolbar p{font-size:11px}.analysis-toolbar label{display:block;margin-top:20px}.inspection-checks{grid-template-columns:1fr 1fr;gap:8px}.inspection-checks>div{padding:14px}.inspection-checks b{font-size:19px}.inspection-checks small{font-size:9px}.inspection-checks span{font-size:10px}.chart-grid{grid-template-columns:1fr;gap:20px}.sample-tray{grid-template-columns:1fr 1fr;gap:10px}.sample-card{padding:14px}.sample-card small{font-size:10px}.sample-card>span{font-size:9px}.sample-card b{font-size:14px}.depth-reading,#comparison-note{font-size:11px}.gear-method p{font-size:11px}.gear-method a{font-size:11px}.micro-panel{top:63px;left:12px;right:12px;bottom:34px;padding:14px}.micro-panel>span{font-size:10px}.micro-panel canvas{height:85px;margin:13px 0 7px}.micro-panel h3{font-size:12px;margin:7px 0}.micro-panel p{font-size:10px;line-height:1.7;margin-top:5px}.process-animation{left:15px;right:15px;bottom:38px;padding:16px}.process-animation>div:first-child{font-size:12px}.process-animation p{font-size:10px;margin:12px 0}.progress-line{margin:13px 0}.time-note{font-size:8px;margin-left:10px}.journey-intro{padding:25px 25px;align-items:flex-start}.intro-copy h1{font-size:40px;margin:20px 0}.intro-copy{padding:8px 0}.intro-copy .eyebrow{font-size:9px;line-height:1.8}.intro-copy .intro-lead{font-size:15px!important;line-height:1.9!important;margin:22px 0!important}.intro-copy p:not(.eyebrow){font-size:12px;line-height:2;margin:17px 0}.intro-actions{gap:18px;margin:25px 0 19px}.intro-actions .gear-primary{min-width:175px;padding:15px;font-size:12px}.intro-actions .text-button{font-size:10px;white-space:nowrap}.intro-copy>small{font-size:9px;line-height:1.8}.intro-orbits{width:90vw;height:90vw;right:-38vw;top:45%;opacity:.17}#gear-toast{font-size:11px;padding:11px 15px;bottom:15px}.delivery-note textarea{font-size:12px}}
@media(max-width:360px){.lab-heading h1{font-size:24px}.lab-heading>div>p:last-child{max-width:205px}.lab-tools{max-width:55px}.scene-frame{height:285px}.action-card{padding:20px}.scene-heading strong{font-size:12px}.scene-badge{display:none}.journey-track b{font-size:10px}.intro-copy h1{font-size:34px}.intro-actions{gap:13px}.intro-actions .gear-primary{min-width:160px}.intro-actions{flex-wrap:wrap}.intro-copy .intro-lead{font-size:13px!important}.sample-card small{font-size:9px}}
@media(prefers-reduced-motion:reduce){.journey-intro:not([hidden]) .intro-copy>*{animation:none}.gear-page *{scroll-behavior:auto!important;transition:none!important}}
.action-card h2,.action-card h3,.lab-heading h1{max-width:none;width:auto}.action-card h2{word-break:normal;overflow-wrap:normal}.scene-frame,#step-title,#analysis-details{scroll-margin-top:75px}
@media(max-width:780px){.gear-page{padding-bottom:85px}.next-action{position:fixed;bottom:max(12px,env(safe-area-inset-bottom));left:16px;right:16px;z-index:70;padding:8px;margin:0;border:1px solid #a9bdad;border-radius:9px;background:#e3e8e6;box-shadow:0 6px 28px #0004}.next-action>p{display:none}.action-card{padding-bottom:26px}.intro-open .next-action{visibility:hidden}.lab-heading h1{font-size:26px}.lab-heading{padding-bottom:12px}.lab-heading>div>p:last-child{display:none}.lab-heading{padding-top:19px}.journey-track{margin-bottom:14px}.scene-frame{height:275px}.observation-caption{padding-bottom:4px}.step-description{margin-bottom:14px}}

/* Source: assets/content-safe-rails.css */
/* Public-page alignment repair, based on the 2026-10-09 production snapshot.
   Keep full-bleed scenes; align reading and control surfaces to the site shell. */
.ys-home .home-banner {
  --banner-gutter: var(--content-inset);
}

@media (min-width: 901px) {
  .ys-home .home-banner .engine-panel .raptor-local .raptor-mode-switch,
  .ys-home .home-banner .engine-panel .raptor-local .principle-panel {
    left: auto;
    right: var(--content-inset);
    width: 242px;
  }
}
@media (min-width: 901px) and (max-width: 1150px) {
  .ys-home .home-banner .engine-panel .raptor-local .raptor-mode-switch,
  .ys-home .home-banner .engine-panel .raptor-local .principle-panel {
    width: 210px;
  }
}

/* Use the existing stacked engine layout throughout its 900px breakpoint. */
@media (min-width: 741px) and (max-width: 900px) {
  .ys-home .home-banner .engine-panel {
    position: relative;
    height: auto;
    min-height: 0;
    max-height: none;
    padding-bottom: 85px;
  }
  .ys-home .home-banner .engine-panel .hero {
    height: auto !important;
    min-height: 0 !important;
    max-height: none;
  }
  .ys-home .home-banner .engine-panel .hero-layout {
    display: block;
    box-sizing: border-box;
    width: 100%;
    padding: 340px var(--content-inset) 0;
  }
  .ys-home .home-banner .engine-panel .hero-copy {
    top: 36px !important;
    transform: none;
    width: calc(100% - var(--content-inset) * 2) !important;
  }
  .ys-home .home-banner .engine-panel .hero .raptor-local,
  .ys-home .home-banner .engine-panel .hero .raptor-local:not([data-display=structure]) {
    position: relative !important;
    inset: auto !important;
    width: 100% !important;
    height: auto !important;
  }
}

@media (max-width: 740px) {
  .ys-home .home-banner {
    --banner-copy-width: calc(100% - var(--content-inset) * 2);
  }
}

/* Course explanations share the header/footer's 1260px content measure. */
.course-value,
.gear-page .lab-wrap,
.materials-page .material-wrap {
  box-sizing: border-box;
  width: min(1260px, calc(100% - var(--site-gutter) * 2));
  max-width: 1260px;
  margin-inline: auto;
}
.gear-page .journey-intro {
  padding-inline: var(--content-inset);
  overflow-x: hidden;
}
@media (max-width: 780px) {
  .gear-page .next-action {
    left: var(--content-inset);
    right: var(--content-inset);
  }
}

@media (max-width: 900px) {
  .marine-page .marine-intro,
  .marine-page .marine-console,
  .marine-page .marine-bottom {
    margin-inline: var(--marine-safe);
  }
}

/* Wind: preserve the terrain canvas and use one rail for all fixed chrome. */
.wind-course {
  --wind-console-width: 282px;
  --wind-panel-gap: 24px;
}
.wind-course .twin-workspace {
  overflow-x: clip;
}
.wind-course .twin-header,
.wind-course .twin-tabs,
.wind-course .analysis-panel,
.wind-course .maintenance-panel,
.wind-course .course-story,
.wind-course .model-notes {
  padding-inline: var(--content-inset);
}
.wind-course .scene-caption,
.wind-course .scene-power,
.wind-course .scene-foot,
.wind-course .machine-actions,
.wind-course .machine-sequence {
  left: var(--content-inset);
}
.wind-course .twin-console {
  right: var(--content-inset);
  width: var(--wind-console-width);
}
.wind-course .summary-grid {
  left: var(--content-inset);
  right: calc(var(--content-inset) + var(--wind-console-width) + var(--wind-panel-gap));
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.wind-course .scene-tools,
.wind-course .scene-foot,
.wind-course .wake-legend {
  right: calc(var(--content-inset) + var(--wind-console-width) + var(--wind-panel-gap));
}
.wind-course .twin-scene.is-machine .scene-tools {
  right: var(--content-inset);
}
.wind-course .summary-grid .selected-metrics strong {
  line-height: 1.2;
}
@media (min-width: 1151px) {
  .wind-course .summary-grid .selected-metrics { margin: 16px 0 12px; }
}
@media (min-width: 1151px) and (max-width: 1599px) {
  .wind-course .summary-grid svg { height: 80px; }
}

@media (min-width: 1600px) {
  .wind-course { --wind-console-width: 300px; }
}
@media (min-width: 801px) and (max-width: 1050px) {
  .wind-course { --wind-console-width: 250px; --wind-panel-gap: 16px; }
}
/* Stack the compact summary's contents before they can collide with the console. */
@media (min-width: 801px) and (max-width: 1150px) {
  .wind-course .summary-grid { height: 194px; gap: 8px; }
  .wind-course .summary-grid > article { padding: 12px 10px; }
  .wind-course .capture { flex-direction: column; align-items: flex-start; gap: 6px; margin-top: 10px; }
  .wind-course .capacity-ring { width: 48px; height: 48px; }
  .wind-course .capture strong { font-size: 18px; }
  .wind-course .summary-grid .card-title { flex-wrap: wrap; gap: 5px; }
  .wind-course .selected-metrics { grid-template-columns: 1fr; gap: 6px; margin: 12px 0; }
  .wind-course .selected-metrics > div { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px; }
  .wind-course .selected-metrics strong { font-size: 17px; line-height: 1.2; }
  .wind-course .selected-metrics small { margin-top: 0; }
  .wind-course .scene-foot { bottom: 234px; }
  .wind-course .wake-legend { bottom: 230px; }
}
@media (max-width: 800px) {
  .wind-course .twin-console {
    right: auto;
    width: calc(100% - var(--content-inset) * 2);
    margin-inline: var(--content-inset);
  }
  .wind-course .summary-grid {
    left: auto;
    right: auto;
    padding-inline: var(--content-inset);
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .wind-course .scene-tools,
  .wind-course .scene-foot,
  .wind-course .wake-legend,
  .wind-course .machine-actions,
  .wind-course .machine-sequence {
    right: var(--content-inset);
  }
  .wind-course .scene-tools {
    max-width: calc(100% - var(--content-inset) * 2);
  }
}
@media (max-width: 360px) {
  .wind-course .capture { flex-wrap: wrap; }
}

/* Source: assets/materials-review.css */
/* Materials journey: keep the specimen and its next action in the same workspace. */
.gear-page .lab-topbar{padding-block:12px}
.gear-page .lab-heading{padding:20px 0 14px;align-items:center}
.gear-page .lab-heading .eyebrow{margin-bottom:6px}
.gear-page .lab-heading h1{font-size:28px}
.gear-page .lab-heading>div>p:last-child{margin-top:6px}
.gear-page .journey-track{margin-bottom:18px}
.gear-page .journey-track button{padding:10px 8px 12px}
.gear-page .experiment-layout{grid-template-columns:minmax(0,1fr) minmax(320px,36%);gap:22px}
.gear-page .observation{position:sticky;top:68px}
.gear-page .scene-frame{height:clamp(340px,49vh,510px)}
.gear-page .action-card{padding:22px}
.gear-page .action-card h2{font-size:23px;line-height:1.4;margin:13px 0 10px}
.gear-page .step-description{font-size:13px;line-height:1.8;margin-bottom:15px}
.gear-page .plain-fact{padding:10px 0}
.gear-page .mini-definition{padding:8px 0}
.gear-page .next-action{padding-top:16px;margin-top:17px}
.gear-page .next-action>p{margin-top:8px}
.gear-page .step-result{margin-top:14px;padding:12px 14px}
.gear-page .process-recipe{margin:12px 0;padding:11px 13px}
.gear-page .observation-caption{padding:12px 3px}
.gear-page .observation-caption p{font-size:12px;line-height:1.65}
.gear-page .comparison-bars{padding:14px 17px;gap:12px}
.gear-page .result-pills>div{padding:14px}
.gear-page .control-title{margin:13px 0 9px}
.gear-page .prediction-label{margin-top:16px}
.gear-page .scene-frame,.gear-page .action-card{scroll-margin-top:68px}
.gear-page .view-tabs button:disabled,.gear-page .depth-points button:disabled{opacity:.65}
.gear-page .depth-points button[aria-pressed=true]{background:#3b3225;border-color:#d7b780;color:#ffe1ac}
.gear-page .action-card[aria-busy=true]{border-color:#a9c4b3}
@media(min-width:781px) and (max-height:800px){
 .gear-page .lab-heading>div>p:last-child{display:none}
 .gear-page .lab-heading{padding-top:15px;padding-bottom:11px}
 .gear-page .scene-frame{height:340px}
}
@media(max-width:780px){
 .gear-page .lab-heading{padding:14px 0 10px;align-items:start}
 .gear-page .lab-heading h1{font-size:24px}
 .gear-page .lab-heading .eyebrow{font-size:10px}
 .gear-page .lab-topbar{padding-block:11px;gap:10px}
 .gear-page .lab-topbar>span{padding-left:10px}
 .gear-page .lab-topbar>div{gap:12px}
 .gear-page .journey-track{margin-bottom:12px}
 .gear-page .journey-track button{padding:9px 2px 10px}
 .gear-page .journey-track span{margin-bottom:4px}
 .gear-page .experiment-layout{display:flex;gap:12px}
 .gear-page .observation{position:static}
 .gear-page .scene-frame{height:290px}
 .gear-page .action-card{padding:20px}
 .gear-page .action-card h2{font-size:23px}
 .gear-page .next-action{padding:8px;margin:0}
 .gear-page .scene-heading{top:14px}
 .gear-page .view-tabs{top:69px}
 .gear-page .process-animation{padding:12px;bottom:36px}
 .gear-page .progress-line{margin:10px 0}
 .gear-page .process-animation p{margin:8px 0}
 .gear-page #gear-toast{bottom:90px}
 .gear-page .micro-panel{top:60px;bottom:34px}
 .gear-page .explore-more{margin-bottom:95px}
}
@media(max-width:360px){
 .gear-page .lab-topbar{font-size:10px}
 .gear-page .lab-topbar>div{gap:8px}
 .gear-page .lab-heading h1{font-size:22px}
 .gear-page .scene-heading strong{font-size:11px}
}
/* The process status must never obscure the heated specimen. */
.gear-page .process-animation{position:relative;inset:auto;padding:14px 17px;margin-top:10px;display:grid;grid-template-columns:1fr auto;gap:8px 14px}
.gear-page .process-animation>div:first-child,.gear-page .process-animation .progress-line,.gear-page .process-animation .time-note{grid-column:1/-1}
.gear-page .process-animation .progress-line{margin:3px 0;height:3px}
.gear-page .process-animation p{margin:0;align-self:center}
.gear-page .process-animation .time-note{margin:0}
@media(max-width:780px){.gear-page .process-animation{padding:12px 14px;gap:6px 10px}}

/* Source: assets/course-learning.css */
.course-learning{--cl-text:#dbe6eb;--cl-muted:#92a6b1;--cl-line:rgba(157,188,207,.18);width:min(1260px,calc(100% - var(--site-gutter,32px)*2));margin:52px auto 64px;color:var(--cl-text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:14px;line-height:1.65;text-align:left;position:relative;z-index:1}.course-learning *{box-sizing:border-box}.course-learning h2,.course-learning h3,.course-learning p{margin-top:0}.course-learning a{color:#99d7ec;text-decoration:none}.cl-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:20px}.cl-heading h2{font-size:23px;letter-spacing:-.04em;margin:0}.cl-eyebrow{font-size:11px;color:var(--cl-muted);letter-spacing:.12em;margin-bottom:6px!important}.cl-heading>a{font-size:12px;white-space:nowrap}.cl-details{border:1px solid var(--cl-line);border-radius:16px;background:rgba(15,28,39,.65);margin:12px 0;overflow:hidden}.cl-details>summary{cursor:pointer;list-style:none;padding:20px 24px;font-weight:600;display:flex;justify-content:space-between;align-items:center;gap:20px}.cl-details>summary::-webkit-details-marker{display:none}.cl-details>summary:after{content:'＋';font-weight:400;color:var(--cl-muted)}.cl-details[open]>summary:after{content:'−'}.cl-details>summary small{font-size:12px;font-weight:400;color:var(--cl-muted);margin-left:auto}.cl-details-body{padding:0 24px 24px}.cl-guide-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:28px}.cl-guide-grid h3{font-size:15px;margin-bottom:10px}.cl-guide-grid p,.cl-guide-grid li,.cl-note{color:var(--cl-muted)}.cl-guide-grid ul,.cl-guide-grid ol{padding-left:20px;margin:12px 0}.cl-guide-grid li+li{margin-top:10px}.cl-facts{display:grid;grid-template-columns:100px 1fr;margin:0 0 20px;gap:8px 12px}.cl-facts dt{color:var(--cl-muted)}.cl-facts dd{margin:0}.cl-note{font-size:12px;line-height:1.7;margin:12px 0}.cl-actions{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.course-learning button,.course-learning .cl-link-button{appearance:none;border:1px solid rgba(153,191,211,.24);border-radius:9px;background:rgba(122,168,194,.1);color:var(--cl-text);font-family:inherit;font-size:13px;font-weight:500;line-height:1.4;padding:10px 14px;cursor:pointer;transition:background .2s,transform .2s}.course-learning button:hover:not(:disabled){background:rgba(122,168,194,.2);transform:translateY(-1px)}.course-learning button:disabled{opacity:.35;cursor:default}.course-learning button:focus-visible,.course-learning a:focus-visible,.course-learning summary:focus-visible,.course-learning input:focus-visible,.course-learning textarea:focus-visible{outline:2px solid #bce8ef;outline-offset:4px}.course-learning .cl-primary{background:#c5e5ed;color:#102a37;border-color:#c5e5ed}.cl-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}.cl-form label{font-size:12px;color:var(--cl-muted);display:block}.cl-form label:first-child{grid-column:1/-1}.course-learning input,.course-learning textarea{display:block;margin-top:6px;width:100%;border:1px solid var(--cl-line);border-radius:8px;background:rgba(1,9,16,.36);color:var(--cl-text);padding:10px 12px;font-family:inherit;font-size:14px;line-height:1.5;resize:vertical}.course-learning textarea{min-height:88px}.cl-records{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}.cl-record{border-top:1px solid var(--cl-line);padding:16px 0}.cl-record h3{font-size:15px;margin:0 0 6px}.cl-record p{font-size:12px;color:var(--cl-muted);margin:0}.cl-record .cl-actions{margin-bottom:0}.cl-record button{font-size:12px;padding:7px 10px}.cl-status{min-height:22px;font-size:12px;color:#b1dde6;white-space:pre-line}.cl-comparison{overflow:auto;margin:20px 0}.cl-comparison table{min-width:540px;border-collapse:collapse;width:100%;font-size:12px}.cl-comparison th,.cl-comparison td{text-align:left;padding:10px;border-bottom:1px solid var(--cl-line);font-weight:400}.cl-comparison th{color:var(--cl-muted)}.cl-related{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.cl-related a{display:block;border-top:1px solid var(--cl-line);padding:16px 0}.cl-related strong{font-size:15px;display:block;margin-bottom:6px}.cl-related span{color:var(--cl-muted);font-size:12px}.cl-route{display:flex;gap:10px;flex-wrap:wrap;padding:16px 0}.cl-route a{border-bottom:1px solid var(--cl-line);padding-bottom:4px}.cl-adapter-actions:empty{display:none}.cl-clear-confirm{padding:12px;border:1px solid #976c62;border-radius:8px}.cl-report-dialog{width:min(1040px,calc(100% - 32px));max-height:90dvh;border:0;border-radius:16px;padding:0;color:#172b3c;background:#fff}.cl-report-dialog::backdrop{background:rgba(0,0,0,.65);backdrop-filter:blur(5px)}.cl-report-toolbar{position:sticky;top:0;display:flex;justify-content:space-between;gap:10px;padding:14px 22px;background:#f4f6f8;z-index:2}.cl-report-toolbar button{border:1px solid #cbd5dc;border-radius:8px;background:#fff;color:#203647;font-family:inherit;font-size:13px;padding:8px 12px;cursor:pointer}.cl-report-body{padding:25px 32px;font:14px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.cl-report-body h1{font-size:26px;color:#172b3c}.cl-report-body h2{font-size:21px;color:#172b3c;margin:0 0 18px}.cl-report-body h3{font-size:15px;color:#172b3c;margin:20px 0 8px}.cl-report-body table{border-collapse:collapse;width:100%;font-size:12px}.cl-report-body th,.cl-report-body td{text-align:left;padding:8px;border-bottom:1px solid #e2e7eb;vertical-align:top;overflow-wrap:anywhere}.cl-report-body th{width:34%;font-weight:500}.cl-report-entry{padding:24px 0;border-top:1px solid #dce3e8}.cl-report-meta,.cl-report-method{color:#596b78;font-size:12px}.cl-report-body svg{width:100%;max-height:300px}.cl-report-body svg text{font:10px sans-serif;fill:#536474}.cl-report-body figure{margin:24px 0}.cl-report-body figcaption{font-weight:600}.cl-report-body figure p{font-size:12px}.cl-user-copy{white-space:pre-wrap}.course-learning-light{--cl-text:#1d3442;--cl-muted:#617787;--cl-line:#dbe3e8}.course-learning-light .cl-details{background:#f4f7f9}.course-learning-light input,.course-learning-light textarea{background:#fff}.course-learning-light a{color:#146a89}.course-learning-light .cl-status{color:#277184}@media(max-width:740px){.course-learning{width:calc(100% - var(--site-gutter,20px)*2);margin:32px auto 40px}.cl-heading{align-items:start}.cl-heading h2{font-size:20px}.cl-details>summary{padding:16px;font-size:14px;gap:12px}.cl-details>summary small{display:none}.cl-details-body{padding:0 16px 18px}.cl-guide-grid,.cl-form,.cl-records,.cl-related{grid-template-columns:1fr;gap:14px}.cl-facts{grid-template-columns:78px 1fr;font-size:12px}.course-learning button{min-height:40px}.cl-report-body{padding:20px 16px}.cl-heading>a{white-space:normal;max-width:95px;text-align:right}}@media print{body.cl-print-report>*:not(.cl-report-dialog){display:none!important}body.cl-print-report .cl-report-dialog{position:static;display:block;max-height:none;width:100%;margin:0;padding:0;overflow:visible;border-radius:0}body.cl-print-report .cl-report-toolbar{display:none}body.cl-print-report .cl-report-body{padding:0}.cl-report-entry h2,.cl-report-entry h3{break-after:avoid}.cl-report-entry tr,.cl-report-entry figure{break-inside:avoid}}
@media print{body.cl-print-report{background:#fff!important;color:#172b3c!important}.cl-report-body table{table-layout:fixed}.cl-report-method,.cl-report-body p{overflow-wrap:anywhere}}

@media(max-width:780px){.gear-page.is-reading-learning .next-action{visibility:hidden;pointer-events:none}}

/* Source: assets/architecture.css */
/* Shared information architecture, safe rails, and content discovery. */
.ys-links a[aria-current=page]{color:#fff}.site-footer .footer-content{grid-template-columns:1.25fr 1.45fr .8fr 1fr;gap:40px}.footer-course-links{display:grid;width:100%;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px}.site-footer .footer-course-links a{line-height:1.6;margin:0}.site-footer .footer-column{gap:12px}.site-footer .footer-column a{overflow-wrap:anywhere}.site-footer .footer-brand{align-self:start}.site-footer .footer-brand-copy p{white-space:normal}.ys-home #engine-hero-title{font-size:clamp(48px,5.7vw,82px);line-height:1.08;letter-spacing:-.045em;font-weight:600;margin:24px 0 30px}.ys-home .home-course-status{color:inherit;text-decoration:none;pointer-events:auto}.ys-home .home-course-status:hover{background:#354453}
.home-teaching{background:#fff;color:#1d1d1f;padding:90px 0 84px}.home-teaching-heading{display:grid;grid-template-columns:1fr 1fr;gap:14px 64px;align-items:end}.home-teaching-heading .eyebrow{grid-column:1/-1;color:#6e6e73;font-size:12px}.home-teaching-heading h2{font-size:clamp(32px,3.6vw,48px);line-height:1.22;letter-spacing:-.04em;margin:0}.home-teaching-heading>p:last-child{font-size:15px;line-height:1.9;color:#6e6e73;margin:0}.home-teaching-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:38px}.home-teaching-grid>a{border-top:1px solid #d9dce2;padding:24px 2px 10px;color:inherit;text-decoration:none}.use-index{font-size:11px;color:#6e6e73;letter-spacing:.06em}.home-teaching-grid h3{font-size:24px;letter-spacing:-.025em;margin:18px 0 12px}.home-teaching-grid p{font-size:14px;color:#6e6e73;line-height:1.8;max-width:290px;min-height:76px}.home-teaching-grid>a>span:last-child,.home-teaching-more{color:#0071e3;font-size:13px}.home-teaching-more{display:inline-block;margin-top:32px;text-decoration:none}.home-teaching-grid a:hover h3{color:#0071e3}.ys-home .closing-cta{background:#f5f5f7}
.library-search-row{display:flex;align-items:end;gap:16px;margin:20px 0 16px}.library-search-row label{display:grid;gap:8px;font-size:11px;color:#666b77}.library-search-row label:first-child{flex:1}.library-search-row input,.library-search-row select{box-sizing:border-box;width:100%;height:44px;padding:10px 14px;border:1px solid #d8dbe2;border-radius:11px;background:#fff;color:#1d1d1f;font:inherit;font-size:13px}.library-search-row input:focus,.library-search-row select:focus{outline:3px solid #0071e32b;border-color:#0071e3}.library-search-row button{height:44px;padding:8px 16px;border:0;border-radius:11px;color:#38638d;background:#e9edf2;font:inherit;font-size:12px;cursor:pointer}.library-card{scroll-margin-top:80px;display:flex;flex-direction:column}.library-card[hidden]{display:none}.library-card .library-card-link{height:auto;flex:1}.library-description{min-height:44px}.library-guide{border-top:1px solid #edf0f4;margin:0 24px;color:#535965;font-size:12px}.library-guide summary{padding:17px 0;cursor:pointer;list-style-position:inside;font-size:11px;color:#365875}.library-guide>div{padding:0 0 24px;line-height:1.8}.library-guide strong{display:block;color:#313843;font-size:11px}.library-guide p{margin:0 0 14px}.library-guide small{display:block;color:#7b818a;font-size:10px;line-height:1.8}.library-guide ul{padding-left:17px;margin:6px 0 16px}.library-guide a{color:#0071e3;display:inline-block;margin-top:8px;text-decoration:none}.library-empty{padding:54px 20px;border:1px dashed #ccd2dc;border-radius:16px;text-align:center;font-size:14px;color:#6e6e73}.library-empty[hidden]{display:none}.library-empty h3{color:#1d1d1f}.library-empty a{color:#0071e3}.library-media{height:auto;aspect-ratio:1.5}.library-grid{align-items:start}.library-card:target{outline:3px solid #0071e347;outline-offset:4px}
@media(max-width:1000px){.site-footer .footer-content{grid-template-columns:1fr 1.3fr;gap:36px}.home-teaching-heading{gap:20px}.home-teaching-grid{gap:20px}.home-teaching-grid h3{font-size:21px}}
@media(max-width:650px){.site-footer .footer-content{grid-template-columns:1fr 1fr;gap:28px 18px}.site-footer .footer-brand{grid-column:1/-1}.site-footer .footer-courses{grid-column:1/-1}.footer-course-links{grid-template-columns:1fr 1fr}.home-teaching{padding:52px 0}.home-teaching-heading{display:block}.home-teaching-heading>p:last-child{font-size:13px;margin-top:22px}.home-teaching-grid{grid-template-columns:1fr;margin-top:26px;gap:12px}.home-teaching-grid h3{font-size:23px;margin:12px 0 8px}.home-teaching-grid p{max-width:none;min-height:0;font-size:13px}.home-teaching-grid>a{padding-top:22px;padding-bottom:10px}.library-search-row{flex-wrap:wrap;gap:12px}.library-search-row label:first-child{flex-basis:100%}.library-search-row label:nth-child(2){flex:1}.library-search-row input,.library-search-row select{font-size:16px}.library-guide{margin:0 22px}.library-media{aspect-ratio:1.35}.ys-home #engine-hero-title{font-size:clamp(36px,10vw,48px);margin:14px 0 18px}}
@media(prefers-reduced-motion:reduce){.library-card,.library-media img{transition:none}}

/* Keep keyboard navigation available without shifting the visual header. */
.skip-content{position:fixed;top:8px;left:16px;z-index:10000;transform:translateY(-180%);padding:12px 18px;border-radius:8px;background:#fff;color:#163e63;box-shadow:0 3px 16px #0002;text-decoration:none}
.skip-content:focus{transform:translateY(0);outline:3px solid #0071e3;outline-offset:2px}

/* Source: assets/architecture.css */
/* Shared information architecture, safe rails, and content discovery. */
.ys-links a[aria-current=page]{color:#fff}.site-footer .footer-content{grid-template-columns:1.25fr 1.45fr .8fr 1fr;gap:40px}.footer-course-links{display:grid;width:100%;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px}.site-footer .footer-course-links a{line-height:1.6;margin:0}.site-footer .footer-column{gap:12px}.site-footer .footer-column a{overflow-wrap:anywhere}.site-footer .footer-brand{align-self:start}.site-footer .footer-brand-copy p{white-space:normal}.ys-home #engine-hero-title{font-size:clamp(48px,5.7vw,82px);line-height:1.08;letter-spacing:-.045em;font-weight:600;margin:24px 0 30px}.ys-home .home-course-status{color:inherit;text-decoration:none;pointer-events:auto}.ys-home .home-course-status:hover{background:#354453}
.home-teaching{background:#fff;color:#1d1d1f;padding:90px 0 84px}.home-teaching-heading{display:grid;grid-template-columns:1fr 1fr;gap:14px 64px;align-items:end}.home-teaching-heading .eyebrow{grid-column:1/-1;color:#6e6e73;font-size:12px}.home-teaching-heading h2{font-size:clamp(32px,3.6vw,48px);line-height:1.22;letter-spacing:-.04em;margin:0}.home-teaching-heading>p:last-child{font-size:15px;line-height:1.9;color:#6e6e73;margin:0}.home-teaching-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:38px}.home-teaching-grid>a{border-top:1px solid #d9dce2;padding:24px 2px 10px;color:inherit;text-decoration:none}.use-index{font-size:11px;color:#6e6e73;letter-spacing:.06em}.home-teaching-grid h3{font-size:24px;letter-spacing:-.025em;margin:18px 0 12px}.home-teaching-grid p{font-size:14px;color:#6e6e73;line-height:1.8;max-width:290px;min-height:76px}.home-teaching-grid>a>span:last-child,.home-teaching-more{color:#0071e3;font-size:13px}.home-teaching-more{display:inline-block;margin-top:32px;text-decoration:none}.home-teaching-grid a:hover h3{color:#0071e3}.ys-home .closing-cta{background:#f5f5f7}
.library-search-row{display:flex;align-items:end;gap:16px;margin:20px 0 16px}.library-search-row label{display:grid;gap:8px;font-size:11px;color:#666b77}.library-search-row label:first-child{flex:1}.library-search-row input,.library-search-row select{box-sizing:border-box;width:100%;height:44px;padding:10px 14px;border:1px solid #d8dbe2;border-radius:11px;background:#fff;color:#1d1d1f;font:inherit;font-size:13px}.library-search-row input:focus,.library-search-row select:focus{outline:3px solid #0071e32b;border-color:#0071e3}.library-search-row button{height:44px;padding:8px 16px;border:0;border-radius:11px;color:#38638d;background:#e9edf2;font:inherit;font-size:12px;cursor:pointer}.library-card{scroll-margin-top:80px;display:flex;flex-direction:column}.library-card[hidden]{display:none}.library-card .library-card-link{height:auto;flex:1}.library-description{min-height:44px}.library-guide{border-top:1px solid #edf0f4;margin:0 24px;color:#535965;font-size:12px}.library-guide summary{padding:17px 0;cursor:pointer;list-style-position:inside;font-size:11px;color:#365875}.library-guide>div{padding:0 0 24px;line-height:1.8}.library-guide strong{display:block;color:#313843;font-size:11px}.library-guide p{margin:0 0 14px}.library-guide small{display:block;color:#7b818a;font-size:10px;line-height:1.8}.library-guide ul{padding-left:17px;margin:6px 0 16px}.library-guide a{color:#0071e3;display:inline-block;margin-top:8px;text-decoration:none}.library-empty{padding:54px 20px;border:1px dashed #ccd2dc;border-radius:16px;text-align:center;font-size:14px;color:#6e6e73}.library-empty[hidden]{display:none}.library-empty h3{color:#1d1d1f}.library-empty a{color:#0071e3}.library-media{height:auto;aspect-ratio:1.5}.library-grid{align-items:start}.library-card:target{outline:3px solid #0071e347;outline-offset:4px}
@media(max-width:1000px){.site-footer .footer-content{grid-template-columns:1fr 1.3fr;gap:36px}.home-teaching-heading{gap:20px}.home-teaching-grid{gap:20px}.home-teaching-grid h3{font-size:21px}}
@media(max-width:650px){.site-footer .footer-content{grid-template-columns:1fr 1fr;gap:28px 18px}.site-footer .footer-brand{grid-column:1/-1}.site-footer .footer-courses{grid-column:1/-1}.footer-course-links{grid-template-columns:1fr 1fr}.home-teaching{padding:52px 0}.home-teaching-heading{display:block}.home-teaching-heading>p:last-child{font-size:13px;margin-top:22px}.home-teaching-grid{grid-template-columns:1fr;margin-top:26px;gap:12px}.home-teaching-grid h3{font-size:23px;margin:12px 0 8px}.home-teaching-grid p{max-width:none;min-height:0;font-size:13px}.home-teaching-grid>a{padding-top:22px;padding-bottom:10px}.library-search-row{flex-wrap:wrap;gap:12px}.library-search-row label:first-child{flex-basis:100%}.library-search-row label:nth-child(2){flex:1}.library-search-row input,.library-search-row select{font-size:16px}.library-guide{margin:0 22px}.library-media{aspect-ratio:1.35}.ys-home #engine-hero-title{font-size:clamp(36px,10vw,48px);margin:14px 0 18px}}
@media(prefers-reduced-motion:reduce){.library-card,.library-media img{transition:none}}

/* Keep keyboard navigation available without shifting the visual header. */
.skip-content{position:fixed;top:8px;left:16px;z-index:10000;transform:translateY(-180%);padding:12px 18px;border-radius:8px;background:#fff;color:#163e63;box-shadow:0 3px 16px #0002;text-decoration:none}
.skip-content:focus{transform:translateY(0);outline:3px solid #0071e3;outline-offset:2px}