/* Engineering — technical editorial built around connected vehicle systems. */



.engineering-page{
  --eng-ink:#181818;
  --eng-deep:#121212;
  --eng-charcoal:#252525;
  --eng-paper:#ffffff;
  --eng-soft:#ffffff;
  --eng-line:#d6d6d6;
  --eng-line-dark:rgba(255,255,255,.17);
  --eng-muted:#727272;
  --eng-accent:#c81020;
  --eng-accent-light:#c81020;
  background:var(--eng-paper);
}
.engineering-page .eyebrow:not(.eyebrow--light){color:#616161}
.engineering-page :where(section[id]){scroll-margin-top:142px}
.engineering-page :where(a,button){-webkit-tap-highlight-color:transparent}
.engineering-page :where(button,a):focus-visible{outline:2px solid var(--eng-accent);outline-offset:3px}
.eng-hero{position:relative;min-height:720px;padding-top:82px;overflow:hidden;background:var(--eng-ink);color:var(--text-light)}
.eng-hero:before{position:absolute;inset:0;content:"";background:radial-gradient(ellipse at 90% 18%,rgba(200,16,32,.1),transparent 30%),linear-gradient(118deg,transparent 49.9%,rgba(255,255,255,.025) 50%,transparent 50.14%);pointer-events:none}
.eng-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(420px,.94fr);grid-template-areas:"crumb crumb" "copy media";align-items:center;column-gap:clamp(52px,8vw,120px);row-gap:24px;padding-top:24px;padding-bottom:106px}
.eng-breadcrumb{grid-area:crumb;display:flex;align-items:center;gap:14px;color:rgba(255,255,255,.62);font-size:11px;letter-spacing:.035em}
.eng-breadcrumb span[aria-hidden=true]{color:var(--eng-accent)}
.eng-breadcrumb [aria-current=page]{color:#fff}
.eng-hero-copy{grid-area:copy;max-width:660px;padding-block:8px 12px}
.eng-hero-copy>.eyebrow{font-size:11px}
.eng-hero-copy h1{max-width:660px;margin-top:28px;font-size:clamp(58px,7vw,96px);line-height:.91;letter-spacing:-.078em;font-weight:500}
.eng-hero-copy h1 em{color:var(--eng-accent-light);font-size:1em}
.eng-hero-strap{max-width:540px;margin-top:24px;font-family:var(--serif);font-size:clamp(23px,2.75vw,35px);line-height:1.08;color:#eeeeee}
.eng-hero-description{max-width:560px;margin-top:17px;color:rgba(255,255,255,.73);font-size:13px;line-height:1.82}
.eng-hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.eng-hero-actions .button{min-height:50px;gap:17px;padding-inline:17px;font-size:11px}
.eng-preview-note{display:flex;align-items:flex-start;gap:9px;max-width:510px;margin-top:20px;color:rgba(255,255,255,.57);font-size:11px;line-height:1.6}
.eng-preview-note>span{margin-top:2px;color:var(--eng-accent);font-size:11px}
.eng-hero-media{grid-area:media;position:relative;aspect-ratio:1.38;max-height:500px;margin:0;overflow:hidden;background:#313131;border:1px solid rgba(255,255,255,.17)}
.eng-hero-media img,.eng-evidence-card img,.eng-gallery-card img{display:block;width:100%;height:100%;object-fit:cover}
.eng-media-stamp{position:absolute;top:16px;left:16px;display:grid;gap:4px;max-width:calc(100% - 32px);padding:10px 12px;background:rgba(18,18,18,.92);color:#f5f5f5;font-size:11px;font-weight:700;letter-spacing:.1em;line-height:1.35}
.eng-media-stamp i{color:var(--eng-accent-light);font-size:11px;font-style:normal;letter-spacing:.08em}
.eng-hero-media figcaption{position:absolute;right:0;bottom:0;left:0;padding:10px 13px;background:rgba(18,18,18,.91);color:rgba(255,255,255,.72);font-size:11px;letter-spacing:.02em}
.eng-hero-rail{position:absolute;right:0;bottom:0;left:0;border-top:1px solid rgba(255,255,255,.18)}
.eng-hero-rail>.container{min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:15px;color:rgba(255,255,255,.69);font-size:11px;font-weight:600;letter-spacing:.12em}
.eng-hero-rail i{width:5px;height:5px;flex:0 0 auto;background:var(--eng-accent);transform:rotate(45deg)}

.eng-section-heading{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(290px,.64fr);align-items:end;gap:clamp(40px,7.5vw,108px);margin-bottom:48px}
.eng-section-heading h2,.eng-detail-copy h2,.eng-suspension h2,.eng-controller h2,.eng-electrical h2,.eng-packaging h2,.eng-balance h2,.eng-drift h2{max-width:760px;margin-top:22px;font-size:clamp(42px,5vw,70px);line-height:.98;letter-spacing:-.073em;font-weight:500}
.eng-section-heading h2 em,.eng-detail-copy h2 em,.eng-suspension h2 em,.eng-controller h2 em,.eng-electrical h2 em,.eng-packaging h2 em,.eng-balance h2 em,.eng-drift h2 em{font-family:var(--serif);font-weight:400;letter-spacing:-.045em}
.eng-intro-copy{padding-bottom:4px}
.eng-intro-copy .eng-lead,.eng-lead{margin:0 0 13px;color:#2f2f2f;font-size:clamp(18px,2vw,23px);line-height:1.43;letter-spacing:-.03em}
.eng-intro-copy>p:not(.eng-lead),.eng-section-heading>p,.eng-detail-copy>p:not(.eyebrow):not(.eng-lead),.eng-suspension-grid>div>p:not(.eyebrow):not(.eng-lead){margin-top:12px;color:var(--text-secondary);font-size:14px;line-height:1.82}
.eng-philosophy{padding-block:105px 100px;background:var(--eng-paper)}
.eng-principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--eng-line);border-bottom:1px solid var(--eng-line)}
.eng-principles article{min-height:180px;padding:24px 26px 26px 0}
.eng-principles article+article{padding-left:27px;border-left:1px solid var(--eng-line)}
.eng-principles article>span,.eng-tradeoffs article>span,.eng-custom-levels article>span,.eng-value-grid article>span{color:#a30e1b;font-size:11px;font-weight:700;letter-spacing:.13em}
.eng-principles h3{margin-top:20px;font-size:21px;letter-spacing:-.045em}
.eng-principles p{max-width:310px;margin-top:9px;color:var(--text-secondary);font-size:14px;line-height:1.7}
.eng-manifesto{margin:clamp(58px,8vw,100px) 0 0;text-align:center;font-size:clamp(42px,7.4vw,100px);line-height:.94;letter-spacing:-.08em}
.eng-manifesto em{font-family:var(--serif);font-weight:400;color:#a30e1b;letter-spacing:-.04em}

.eng-architecture{padding-block:100px 86px;background:var(--eng-deep);color:var(--text-light)}
.eng-section-heading--light .eng-intro-copy .eng-lead,.eng-section-heading--light .eng-lead{color:#eeeeee}
.eng-section-heading--light .eng-intro-copy>p:not(.eng-lead),.eng-section-heading--light>p{color:rgba(255,255,255,.68)}
.eng-architecture-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(250px,.65fr);gap:27px;align-items:stretch}
.eng-architecture-visual{position:relative;min-height:425px;padding:48px 30px 40px;overflow:hidden;background:#212121;border:1px solid var(--eng-line-dark)}
.eng-diagram-disclosure{display:block;color:#c81020;font-size:7px;font-weight:700;letter-spacing:.13em;line-height:1.5}
.eng-system-svg{display:block;width:100%;height:auto;max-height:345px;margin:16px auto 0;overflow:visible}
.eng-system-svg path,.eng-system-svg rect,.eng-system-svg circle{vector-effect:non-scaling-stroke}
.sys-body{fill:rgba(255,255,255,.025);stroke:rgba(255,255,255,.56);stroke-width:1.7}
.sys-chassis{fill:none;stroke:rgba(255,255,255,.22);stroke-width:1.1;stroke-dasharray:5 5}
.sys-cockpit{fill:rgba(200,16,32,.08);stroke:rgba(200,16,32,.74);stroke-width:1.3}
.sys-wheel{fill:#151515;stroke:rgba(255,255,255,.5);stroke-width:1.2}
.sys-wire{fill:none;stroke:rgba(200,16,32,.68);stroke-width:1.5;stroke-dasharray:4 5}
.sys-battery{fill:rgba(200,16,32,.25);stroke:var(--eng-accent-light);stroke-width:1.7}
.sys-motor{fill:rgba(255,255,255,.12);stroke:#f1f1f1;stroke-width:1.5}
.sys-steer,.sys-brake{fill:none;stroke:#d4d4d4;stroke-width:1.5}
.sys-driver{fill:rgba(255,255,255,.23);stroke:#f5f5f5;stroke-width:1.3}
.eng-system-svg text,.eng-electrical-visual svg text,.eng-weight-visual svg text{fill:rgba(255,255,255,.78);font-family:var(--sans);font-size:10px;font-weight:600;letter-spacing:1.1px}
.eng-map-point{position:absolute;display:grid;width:33px;height:33px;place-items:center;padding:0;border:1px solid rgba(255,255,255,.72);border-radius:50%;background:#1a1a1a;color:#fff;font:600 11px var(--sans);cursor:pointer;transition:background .2s,border-color .2s,transform .2s}
.eng-map-point:hover,.eng-map-point[aria-pressed=true]{border-color:var(--eng-accent);background:var(--eng-accent);color:#ffffff;transform:scale(1.06)}
.eng-map-point--driver{top:38%;left:48.5%}.eng-map-point--chassis{top:53%;left:43%}.eng-map-point--steering{top:45%;left:24%}.eng-map-point--battery{top:51%;left:58%}.eng-map-point--drive{top:55%;left:72%}
.eng-illustration-note{position:absolute;right:20px;bottom:14px;left:20px;color:rgba(255,255,255,.51);font-size:8px;line-height:1.5}
.eng-architecture-copy{display:flex;flex-direction:column;min-width:0;border:1px solid var(--eng-line-dark);background:rgba(255,255,255,.025)}
.eng-system-selector{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));padding:16px;gap:7px;border-bottom:1px solid var(--eng-line-dark)}
.eng-system-selector button{min-height:40px;padding:9px 10px;border:1px solid rgba(255,255,255,.17);background:transparent;color:rgba(255,255,255,.77);font:600 14px var(--sans);text-align:left;cursor:pointer}
.eng-system-selector button:hover,.eng-system-selector button[aria-pressed=true]{border-color:var(--eng-accent);color:#fff}
.eng-system-detail{margin:auto 0;padding:26px 23px 30px}
.eng-system-detail .eng-kicker,.eng-suspension-board .eng-kicker{color:#c81020;font-size:11px;font-weight:700;letter-spacing:.13em}
.eng-kicker{color:#a30e1b;font-size:11px;font-weight:700;letter-spacing:.13em}
.eng-system-detail h3{margin-top:14px;font-size:22px;line-height:1.15;letter-spacing:-.04em}
.eng-system-detail>p:last-child{margin-top:11px;color:rgba(255,255,255,.69);font-size:14px;line-height:1.72}
.eng-tradeoffs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:18px;border:1px solid var(--eng-line-dark)}
.eng-tradeoffs article{min-height:154px;padding:19px 18px;border-right:1px solid var(--eng-line-dark)}
.eng-tradeoffs article:last-child{border-right:0}
.eng-tradeoffs article>span{color:#c81020}
.eng-tradeoffs h3{margin-top:18px;font-size:18px;font-weight:500;letter-spacing:-.035em}
.eng-tradeoffs p{margin-top:8px;color:rgba(255,255,255,.64);font-size:14px;line-height:1.65}

.eng-step-nav{position:sticky;z-index:80;top:82px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--eng-line);box-shadow:0 8px 24px rgba(21,21,21,.045);backdrop-filter:blur(12px)}
.eng-step-nav-inner{min-height:55px;display:flex;align-items:center;gap:24px}
.eng-step-label{flex:0 0 auto;color:#666666;font-size:11px;font-weight:700;letter-spacing:.13em}
.eng-step-links{display:flex;align-items:center;justify-content:space-between;gap:5px;width:100%;overflow-x:auto;scrollbar-width:none}
.eng-step-links::-webkit-scrollbar{display:none}
.eng-step-links a{position:relative;flex:0 0 auto;padding:19px 11px 17px;color:#616161;font-size:11px;font-weight:600;white-space:nowrap}
.eng-step-links a:after{position:absolute;right:10px;bottom:0;left:10px;height:2px;background:var(--eng-accent);content:"";transform:scaleX(0);transform-origin:left;transition:transform .2s}
.eng-step-links a:hover,.eng-step-links a.is-active{color:var(--eng-ink)}
.eng-step-links a.is-active:after{transform:scaleX(1)}

.eng-detail{padding-block:94px;background:var(--eng-paper)}
.eng-two-column{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.83fr);align-items:center;gap:clamp(55px,8vw,120px)}
.eng-two-column--reverse{grid-template-columns:minmax(360px,.83fr) minmax(0,1fr)}
.eng-detail-copy{max-width:620px}
.eng-detail-copy h2{margin-top:21px}
.eng-detail-copy>p:not(.eyebrow):not(.eng-lead){margin-top:13px;color:var(--text-secondary);font-size:14px;line-height:1.82}
.eng-detail-copy .eng-lead{margin-top:20px}
.eng-detail-copy .text-link{margin-top:20px}
.eng-evidence-card{position:relative;min-width:0;aspect-ratio:1.38;margin:0;overflow:hidden;background:#ffffff;border:1px solid rgba(24,24,24,.14)}
.eng-evidence-card img{transition:transform .45s ease}
.eng-evidence-card:hover img{transform:scale(1.015)}
.eng-evidence-card--chassis{aspect-ratio:1.25}
.eng-photo-tag{position:absolute;top:15px;left:15px;padding:8px 10px;background:rgba(24,24,24,.92);color:#f5f5f5;font-size:11px;font-weight:700;letter-spacing:.1em}
.eng-evidence-card figcaption{position:absolute;right:0;bottom:0;left:0;display:grid;gap:4px;padding:14px 15px;background:rgba(24,24,24,.91);color:#fff}
.eng-evidence-card figcaption b{font-size:11px;font-weight:600}
.eng-evidence-card figcaption span{color:rgba(255,255,255,.67);font-size:11px;line-height:1.5}
.eng-fact-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:21px}
.eng-fact-row span{padding:7px 9px;border:1px solid var(--eng-line);color:#606060;font-size:11px;font-weight:700;letter-spacing:.09em}
.eng-hotspot-panel{display:grid;grid-template-columns:.72fr 1.35fr 1fr;align-items:center;gap:25px;margin-top:30px;padding:20px 22px;background:#ffffff;border-top:2px solid var(--eng-accent)}
.eng-hotspot-intro>span,.eng-hotspot-detail>span{color:#a30e1b;font-size:11px;font-weight:700;letter-spacing:.12em}
.eng-hotspot-intro p,.eng-hotspot-detail p{margin-top:8px;color:#616161;font-size:14px;line-height:1.6}
.eng-hotspot-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
.eng-hotspot-list button{min-height:37px;padding:6px 8px;border:1px solid #d2d2d2;background:transparent;color:#515151;font:500 11px var(--sans);text-align:left;cursor:pointer}
.eng-hotspot-list button span{margin-right:5px;color:#a30e1b;font-size:11px;font-weight:700}
.eng-hotspot-list button:hover,.eng-hotspot-list button[aria-expanded=true]{border-color:#c81020;background:#ffffff;color:#212121}
.eng-hotspot-detail{min-height:74px;padding-left:18px;border-left:1px solid #cfcfcf}

.eng-geometry{padding-block:100px;background:#ffffff}
.eng-geometry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}
.eng-geometry-figure{min-width:0;margin:0;background:var(--eng-paper);border:1px solid rgba(24,24,24,.11)}
.eng-geometry-figure svg{display:block;width:100%;height:auto;padding:15px 14px 0}
.geom-body{fill:#e5e5e5;stroke:#3a3a3a;stroke-width:1.5}.geom-cabin{fill:rgba(200,16,32,.12);stroke:#a30e1b;stroke-width:1.1}.geom-window{fill:#d8d8d8;stroke:#434343;stroke-width:1}.geom-wheel{fill:#252525;stroke:#717171;stroke-width:1}.geom-tire{fill:#272727;stroke:#7a7a7a;stroke-width:1}.geom-measure{fill:none;stroke:#c81020;stroke-width:1.4;stroke-dasharray:4 4}.eng-geometry-figure svg text{fill:#686868;font-family:var(--sans);font-size:8px;font-weight:700;letter-spacing:.9px}
.eng-geometry-figure figcaption{display:grid;gap:5px;padding:13px 15px 15px;border-top:1px solid #dfdfdf}
.eng-geometry-figure figcaption>span{color:#a30e1b;font-size:11px;font-weight:700;letter-spacing:.12em}
.eng-geometry-figure figcaption b{font-size:13px;letter-spacing:-.025em}
.eng-geometry-figure figcaption small{color:#606060;font-size:11px;line-height:1.5}
.eng-geometry-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:17px;border-top:1px solid #cecece;border-bottom:1px solid #cecece}
.eng-geometry-notes article{padding:18px 19px 20px 0}
.eng-geometry-notes article+article{padding-left:20px;border-left:1px solid #cecece}
.eng-geometry-notes b{font-size:12px}
.eng-geometry-notes p{margin-top:7px;color:var(--text-secondary);font-size:14px;line-height:1.65}

.eng-steering{padding-block:96px 75px;background:#ffffff}
.eng-steering-concepts{display:grid;grid-template-columns:1fr 30px 1fr 30px 1fr;align-items:center;margin-top:45px;padding-block:21px;border-top:1px solid var(--eng-line);border-bottom:1px solid var(--eng-line)}
.eng-steering-concepts article{display:grid;gap:7px}
.eng-steering-concepts article span{color:#a30e1b;font-size:11px;font-weight:700;letter-spacing:.12em}
.eng-steering-concepts article b{font-size:14px}
.eng-steering-concepts article small{color:#686868;font-size:11px;line-height:1.5}
.eng-steering-concepts>i{text-align:center;color:#c81020;font-style:normal}

.eng-suspension{padding-block:96px;background:#ffffff}
.eng-suspension-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(380px,.94fr);align-items:center;gap:clamp(48px,7vw,100px)}
.eng-suspension-grid h2{margin-top:21px}
.eng-verify-note{margin-top:19px!important;padding:12px 13px;border-left:2px solid var(--eng-accent);background:#ffffff;color:#525252!important;font-size:11px!important;line-height:1.6}
.eng-suspension-board{padding:22px;background:#232323;color:#fff}
.eng-suspension-options{display:grid;grid-template-columns:1fr 1fr;margin-top:17px;border:1px solid var(--eng-line-dark)}
.eng-suspension-options article{min-height:190px;padding:18px 16px}
.eng-suspension-options article+article{border-left:1px solid var(--eng-line-dark)}
.eng-suspension-options article>span{color:#c81020;font-size:11px;font-weight:700;letter-spacing:.11em}
.eng-suspension-options h3{margin-top:20px;font-size:17px;letter-spacing:-.035em}
.eng-suspension-options p{margin-top:8px;color:rgba(255,255,255,.67);font-size:14px;line-height:1.65}
.eng-suspension-rule{display:flex;align-items:center;gap:12px;margin-top:14px;padding:13px;border:1px solid var(--eng-line-dark)}
.eng-suspension-rule>span{color:var(--eng-accent-light);font-size:11px;font-weight:700}
.eng-suspension-rule p{color:rgba(255,255,255,.8);font-size:14px;line-height:1.5}

.eng-braking{padding-block:96px;background:var(--eng-paper)}
.eng-braking .eng-two-column{grid-template-columns:minmax(0,1fr) minmax(400px,.85fr)}
.eng-powertrain{padding-block:100px 86px;background:#1b1b1b;color:#f5f5f5}
.eng-powertrain .eng-section-heading h2{font-size:clamp(46px,5.4vw,76px)}
.eng-power-flow{display:grid;grid-template-columns:1fr 30px 1fr 30px 1fr 30px 1fr;align-items:stretch;margin-top:58px}
.eng-power-flow article{min-height:137px;padding:17px 16px;border:1px solid var(--eng-line-dark);background:rgba(255,255,255,.025)}
.eng-power-flow article span{color:#c81020;font-size:11px;font-weight:700;letter-spacing:.12em}
.eng-power-flow article b{display:block;margin-top:23px;font-size:17px;font-weight:500;letter-spacing:-.03em}
.eng-power-flow article small{display:block;margin-top:7px;color:rgba(255,255,255,.62);font-size:11px;line-height:1.5}
.eng-power-flow>i{align-self:center;text-align:center;color:var(--eng-accent);font-style:normal}
.eng-diagram-disclosure+.eng-power-flow{margin-top:21px}
.eng-diagram-disclosure{color:#c81020}
.eng-driver-diagram>.eng-diagram-disclosure,.eng-dimensions-card>.eng-diagram-disclosure{color:#a30e1b}
.eng-power-footer{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-top:38px;padding-top:27px;border-top:1px solid var(--eng-line-dark)}
.eng-power-footer .eng-manifesto{margin:0;text-align:left;font-size:clamp(36px,5.8vw,68px)}
.eng-manifesto--light em{color:var(--eng-accent-light)}
.eng-battery{padding-block:96px 67px;background:#ffffff}
.eng-battery-effects{display:grid;grid-template-columns:.4fr 1.6fr;align-items:center;gap:20px;margin-top:49px;padding:18px 0;border-top:1px solid var(--eng-line);border-bottom:1px solid var(--eng-line)}
.eng-battery-effects>div{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
.eng-battery-effects b{color:#575757;font-size:11px;font-weight:600}

.eng-controller{padding-block:96px;background:#ffffff}
.eng-controller-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(350px,.78fr);align-items:center;gap:clamp(48px,7vw,94px)}
.eng-controller h2{font-size:clamp(40px,4.6vw,64px)}
.eng-controller-layout>div:first-child>p:not(.eyebrow):not(.eng-lead){margin-top:12px;color:var(--text-secondary);font-size:14px;line-height:1.8}
.eng-application-tabs{padding:22px;background:#ffffff;border:1px solid var(--eng-line)}
.eng-tab-list{display:flex;gap:6px;margin-top:15px;border-bottom:1px solid var(--eng-line)}
.eng-tab-list button{position:relative;min-height:41px;padding:10px 12px;border:0;background:none;color:#656565;font:600 11px var(--sans);cursor:pointer}
.eng-tab-list button:after{position:absolute;right:8px;bottom:-1px;left:8px;height:2px;background:var(--eng-accent);content:"";transform:scaleX(0)}
.eng-tab-list button[aria-selected=true]{color:#1f1f1f}
.eng-tab-list button[aria-selected=true]:after{transform:scaleX(1)}
.eng-tab-panel{min-height:145px;padding-top:20px}
.eng-tab-panel h3{font-size:18px;letter-spacing:-.035em}
.eng-tab-panel p{margin-top:8px;color:var(--text-secondary);font-size:14px;line-height:1.7}
.eng-small-note{padding-top:11px;border-top:1px solid #dfdfdf;color:#6f6f6f;font-size:11px;line-height:1.5}

.eng-electrical{padding-block:96px;background:#212121;color:#f6f6f6}
.eng-electrical-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(390px,.9fr);align-items:center;gap:clamp(46px,7vw,90px)}
.eng-electrical h2{font-size:clamp(40px,4.8vw,66px)}
.eng-electrical>div>div:first-child>p:not(.eyebrow):not(.eng-lead){margin-top:12px;color:rgba(255,255,255,.69);font-size:14px;line-height:1.8}
.eng-electrical .eng-lead{color:#ededed}
.eng-electrical .eng-verify-note{background:rgba(255,255,255,.045);color:rgba(255,255,255,.75)!important}
.eng-electrical-visual{position:relative;min-width:0;margin:0;padding:24px;background:#181818;border:1px solid var(--eng-line-dark)}
.eng-electrical-visual svg{display:block;width:100%;height:auto;margin-top:18px}
.elec-box{fill:#262626;stroke:rgba(255,255,255,.42);stroke-width:1.2;vector-effect:non-scaling-stroke}
.elec-box--accent{fill:rgba(200,16,32,.13);stroke:var(--eng-accent-light)}
.elec-line{fill:none;stroke:rgba(200,16,32,.74);stroke-width:1.5;stroke-dasharray:5 5;vector-effect:non-scaling-stroke}
.elec-node{fill:var(--eng-accent-light)}
.eng-electrical-visual figcaption{padding-top:14px;border-top:1px solid var(--eng-line-dark);color:rgba(255,255,255,.58);font-size:11px;line-height:1.5}

.eng-ergonomics{padding-block:100px;background:var(--eng-paper)}
.eng-driver-layout{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(300px,.78fr);gap:clamp(45px,7vw,96px);align-items:center}
.eng-driver-diagram{padding:24px;background:#ffffff;border:1px solid var(--eng-line)}
.eng-driver-diagram svg{display:block;width:100%;height:auto;margin-top:15px}
.driver-seat{fill:#3c3c3c;stroke:#252525;stroke-width:1.5;vector-effect:non-scaling-stroke}.driver-seat-back{fill:#c8c8c8;stroke:#363636;stroke-width:1.5;vector-effect:non-scaling-stroke}.driver-wheel{fill:#272727;stroke:#383838;stroke-width:4;vector-effect:non-scaling-stroke}.driver-wheel-spoke{stroke:#e0e0e0;stroke-width:2;vector-effect:non-scaling-stroke}.driver-pedals{fill:#c81020;stroke:#a30e1b;stroke-width:1;vector-effect:non-scaling-stroke}.driver-line{fill:none;stroke:#a30e1b;stroke-width:1.5;stroke-dasharray:5 4;vector-effect:non-scaling-stroke}.driver-node{fill:#c81020;stroke:#fff;stroke-width:1;vector-effect:non-scaling-stroke}.eng-driver-diagram svg text{fill:#636363;font-family:var(--sans);font-size:9px;font-weight:700;letter-spacing:1px}
.eng-driver-copy article{display:grid;grid-template-columns:130px 1fr;gap:14px;padding-block:14px;border-bottom:1px solid var(--eng-line)}
.eng-driver-copy article:first-child{border-top:1px solid var(--eng-line)}
.eng-driver-copy article span{color:#a30e1b;font-size:11px;font-weight:700;letter-spacing:.1em}
.eng-driver-copy article p,.eng-driver-copy>p{color:var(--text-secondary);font-size:14px;line-height:1.65}
.eng-driver-copy>p{margin-top:17px}
.eng-inline-links{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px}
.eng-inline-links a{color:#252525;font-size:11px;font-weight:700}
.eng-inline-links a span{padding-left:5px;color:#a30e1b}

.eng-packaging{padding-block:97px;background:#ffffff}
.eng-packaging-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(380px,.88fr);align-items:center;gap:clamp(45px,7vw,92px)}
.eng-packaging-layout>div:first-child>p:not(.eyebrow){margin-top:14px;color:var(--text-secondary);font-size:14px;line-height:1.8}
.eng-dimensions-card{padding:22px;background:#ffffff;border:1px solid var(--eng-line)}
.eng-dimension-lines{position:relative;min-height:275px;margin-top:13px;background:linear-gradient(90deg,transparent 49.9%,rgba(47,47,47,.045) 50%,transparent 50.1%),linear-gradient(0deg,transparent 49.9%,rgba(47,47,47,.045) 50%,transparent 50.1%)}
.eng-dimension-lines:before{position:absolute;top:33%;left:23%;width:54%;height:34%;border:1.5px solid #444444;border-radius:38% 26% 24% 25%;content:""}
.eng-dimension-lines:after{position:absolute;top:39%;left:34%;width:34%;height:20%;border:1px solid #a30e1b;background:rgba(200,16,32,.1);content:""}
.eng-dimension-lines span{position:absolute;color:#787878;font-size:11px;font-weight:700;letter-spacing:.08em}
.eng-dim-length{top:17%;left:37%}.eng-dim-width{top:47%;right:7%;transform:rotate(90deg)}.eng-dim-height{top:38%;left:5%;transform:rotate(-90deg)}.eng-dim-cockpit{top:64%;left:35%}.eng-dim-wheelbase{top:80%;left:42%}
.eng-dim-length:after,.eng-dim-wheelbase:after{position:absolute;top:14px;left:-35px;width:170px;border-top:1px dashed #c81020;content:""}
.eng-dim-width:after,.eng-dim-height:after{position:absolute;top:50%;left:-25px;width:60px;border-top:1px dashed #c81020;content:""}
.eng-dim-cockpit:after{position:absolute;top:14px;left:0;width:100%;border-top:1px dashed #c81020;content:""}
.eng-dimensions-card>p{margin-top:8px;color:#696969;font-size:14px;line-height:1.5}

.eng-balance{padding-block:96px;background:#ffffff}
.eng-balance-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(390px,.92fr);align-items:center;gap:clamp(45px,7vw,88px)}
.eng-balance-layout>div:first-child>p:not(.eyebrow):not(.eng-lead){margin-top:13px;color:var(--text-secondary);font-size:14px;line-height:1.8}
.eng-weight-visual{position:relative;margin:0;padding:24px;background:#212121;border:1px solid #383838}
.eng-weight-visual svg{display:block;width:100%;height:auto;margin-top:14px}
.weight-body{fill:rgba(255,255,255,.025);stroke:rgba(255,255,255,.5);stroke-width:1.5;vector-effect:non-scaling-stroke}.weight-platform{fill:none;stroke:rgba(255,255,255,.19);stroke-width:1;stroke-dasharray:5 5;vector-effect:non-scaling-stroke}.weight-axle{fill:none;stroke:#b0b0b0;stroke-width:1;stroke-dasharray:5 4;vector-effect:non-scaling-stroke}.weight-driver{fill:rgba(255,255,255,.16);stroke:#e1e1e1;stroke-width:1.3;vector-effect:non-scaling-stroke}.weight-battery{fill:rgba(200,16,32,.22);stroke:#c81020;stroke-width:1.5;vector-effect:non-scaling-stroke}.weight-motor{fill:#323232;stroke:#f1f1f1;stroke-width:1.3;vector-effect:non-scaling-stroke}
.eng-weight-visual figcaption{padding-top:14px;border-top:1px solid var(--eng-line-dark);color:rgba(255,255,255,.58);font-size:11px;line-height:1.5}

.eng-drift{padding-block:94px;background:#1c1c1c;color:#f4f4f4}
.eng-drift-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.55fr);align-items:center;gap:clamp(55px,9vw,120px)}
.eng-drift h2{font-size:clamp(43px,5.2vw,72px)}
.eng-drift .eng-lead{margin-top:22px;color:#f0f0f0}
.eng-drift-layout>div:first-child>p:not(.eyebrow):not(.eng-lead){margin-top:13px;color:rgba(255,255,255,.68);font-size:14px;line-height:1.8}
.eng-drift .button{margin-top:22px;min-height:48px;font-size:11px}
.eng-drift-flow{display:flex;flex-direction:column;align-items:stretch;padding:24px;border:1px solid var(--eng-line-dark);background:rgba(255,255,255,.025)}
.eng-drift-flow>span{padding:17px;border:1px solid rgba(255,255,255,.17);color:#f0f0f0;font-size:11px;font-weight:700;letter-spacing:.11em;text-align:center}
.eng-drift-flow>i{padding:6px;color:var(--eng-accent-light);font-style:normal;text-align:center}
.eng-drift-flow small{margin-top:12px;color:rgba(255,255,255,.52);font-size:11px;line-height:1.5;text-align:center}

.eng-venue{padding-block:98px;background:#ffffff}
.eng-venue .eng-section-heading{margin-bottom:37px}
.eng-venue-priorities{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid #cecece;border-bottom:1px solid #cecece}
.eng-venue-priorities article{display:grid;grid-template-columns:27px 1fr;gap:9px;padding:21px 15px 21px 0}
.eng-venue-priorities article+article{padding-left:15px;border-left:1px solid #cecece}
.eng-venue-priorities article>span{color:#a30e1b;font-size:11px;font-weight:700}
.eng-venue-priorities b{font-size:12px}
.eng-venue-priorities small{grid-column:2;color:#606060;font-size:11px;line-height:1.5}

.eng-custom{padding-block:96px;background:#ffffff}
.eng-custom-levels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--eng-line)}
.eng-custom-levels article{min-height:240px;padding:22px 21px}
.eng-custom-levels article+article{border-left:1px solid var(--eng-line)}
.eng-custom-levels h3{margin-top:25px;font-size:22px;letter-spacing:-.045em}
.eng-custom-levels p{min-height:80px;margin-top:10px;color:var(--text-secondary);font-size:14px;line-height:1.72}
.eng-custom-levels small{display:block;margin-top:14px;padding-top:11px;border-top:1px solid #e0e0e0;color:#666666;font-size:11px;line-height:1.5}
.eng-custom>.container>.eng-inline-links{margin-top:20px}

.eng-development{padding-block:96px 90px;background:#212121;color:#fff}
.eng-development .eng-section-heading{margin-bottom:40px}
.eng-development .eng-intro-copy .eng-lead,.eng-development .eng-lead{color:#f0f0f0}
.eng-development .eng-intro-copy>p:not(.eng-lead){color:rgba(255,255,255,.68)}
.eng-development-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:0;padding:0;list-style:none;border-top:1px solid var(--eng-line-dark);border-left:1px solid var(--eng-line-dark)}
.eng-development-steps li{min-height:145px;padding:17px;border-right:1px solid var(--eng-line-dark);border-bottom:1px solid var(--eng-line-dark)}
.eng-development-steps li>span{color:#c81020;font-size:11px;font-weight:700}
.eng-development-steps b{display:block;margin-top:26px;font-size:15px;font-weight:500}
.eng-development-steps small{display:block;margin-top:6px;color:rgba(255,255,255,.61);font-size:11px;line-height:1.55}

.eng-validation{padding-block:98px;background:var(--eng-paper)}
.eng-validation-compare{display:grid;grid-template-columns:1fr 62px 1fr;align-items:stretch;margin-top:35px}
.eng-validation-compare article{padding:23px 24px 22px;border:1px solid var(--eng-line);background:#ffffff}
.eng-validation-compare article>span{color:#a30e1b;font-size:11px;font-weight:700;letter-spacing:.12em}
.eng-validation-compare h3{max-width:390px;margin-top:19px;font-size:clamp(19px,2.2vw,27px);letter-spacing:-.04em}
.eng-validation-compare ul{display:grid;gap:9px;margin:20px 0 0;padding:16px 0 0;border-top:1px solid var(--eng-line);list-style:none}
.eng-validation-compare li{position:relative;padding-left:15px;color:#5c5c5c;font-size:11px;line-height:1.55}
.eng-validation-compare li:before{position:absolute;top:6px;left:0;width:5px;height:5px;background:var(--eng-accent);content:"";transform:rotate(45deg)}
.eng-compare-divider{display:grid;place-items:center;color:#c81020;font-size:19px}
.eng-validation-note{margin-top:18px;color:#686868;font-size:11px;line-height:1.6}
.eng-validation>.container>.text-link{margin-top:12px}

.eng-video{padding-block:76px;background:#ffffff}
.eng-video-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(270px,.7fr);align-items:center;gap:clamp(35px,6vw,76px)}
.eng-video-poster{position:relative;min-width:0;aspect-ratio:16/9;margin:0;overflow:hidden;background:#232323;border:1px solid rgba(24,24,24,.14)}
.eng-video-poster img{display:block;width:100%;height:100%;object-fit:cover}
.eng-video-mark{position:absolute;top:50%;left:50%;display:grid;width:58px;height:58px;place-items:center;border:1px solid rgba(255,255,255,.79);border-radius:50%;background:rgba(24,24,24,.7);color:#fff;font-size:16px;transform:translate(-50%,-50%)}
.eng-video-poster figcaption{position:absolute;right:0;bottom:0;left:0;padding:11px;background:rgba(18,18,18,.9);color:rgba(255,255,255,.79);font-size:11px;font-weight:700;letter-spacing:.1em}
.eng-video-layout h2{margin-top:18px;font-size:clamp(36px,4vw,55px);line-height:1;letter-spacing:-.07em}
.eng-video-layout h2 em{font-family:var(--serif);font-weight:400}
.eng-video-layout p:not(.eyebrow){margin-top:14px;color:var(--text-secondary);font-size:14px;line-height:1.75}

.eng-gallery{padding-block:96px 83px;background:#181818;color:#f6f6f6}
.eng-gallery .eng-section-heading{margin-bottom:31px}
.eng-gallery-filters{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:18px}
.eng-gallery-filters button{min-height:34px;padding:8px 11px;border:1px solid rgba(255,255,255,.21);background:transparent;color:rgba(255,255,255,.76);font:600 11px var(--sans);cursor:pointer}
.eng-gallery-filters button:hover,.eng-gallery-filters button[aria-pressed=true]{border-color:var(--eng-accent);background:var(--eng-accent);color:#ffffff}
.eng-gallery-filters #engineering-gallery-status{margin-left:auto;color:rgba(255,255,255,.56);font-size:11px}
.eng-gallery-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:minmax(175px,auto);gap:9px}
.eng-gallery-card{position:relative;min-width:0;min-height:175px;padding:0;overflow:hidden;border:1px solid rgba(255,255,255,.14);background:#2b2b2b;color:#fff;text-align:left;cursor:pointer}
.eng-gallery-card img{position:absolute;inset:0;transition:transform .4s ease}
.eng-gallery-card:hover img{transform:scale(1.035)}
.eng-gallery-card:after{position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,18,18,.08),rgba(18,18,18,.1) 43%,rgba(18,18,18,.85));content:""}
.eng-gallery-card--wide{grid-column:span 2;grid-row:span 2;min-height:359px}
.eng-gallery-stamp{position:absolute;z-index:1;top:10px;left:10px;color:#373737;font-size:11px;font-weight:700;letter-spacing:.11em}
.eng-gallery-card strong{position:absolute;z-index:2;right:34px;bottom:15px;left:13px;font-size:11px;font-weight:600;line-height:1.35}
.eng-gallery-card>i{position:absolute;z-index:2;right:13px;bottom:14px;color:var(--eng-accent-light);font-size:12px;font-style:normal}
.eng-gallery-card[hidden]{display:none}
.eng-gallery-note{max-width:850px;margin-top:17px;color:rgba(255,255,255,.55);font-size:11px;line-height:1.65}
.eng-lightbox{position:fixed;inset:0;width:min(900px,calc(100% - 28px));max-width:none;max-height:calc(100% - 28px);margin:auto;padding:0;overflow:visible;border:1px solid rgba(255,255,255,.2);background:#1a1a1a;color:#f6f6f6}
.eng-lightbox::backdrop{background:rgba(11,11,11,.88);backdrop-filter:blur(5px)}
.eng-lightbox-toolbar{position:absolute;top:0;right:0;left:0;z-index:3;display:flex;justify-content:space-between;align-items:center;padding:12px 15px;background:rgba(18,18,18,.88);font-size:11px;font-weight:700;letter-spacing:.1em}
.eng-lightbox-toolbar button{min-height:34px;padding:6px 10px;border:1px solid rgba(255,255,255,.25);background:none;color:#fff;font:600 11px var(--sans);cursor:pointer}
.eng-lightbox figure{margin:0}
.eng-lightbox figure img{display:block;width:100%;max-height:72vh;object-fit:contain;background:#282828}
.eng-lightbox figcaption{display:grid;gap:6px;padding:16px 18px}
.eng-lightbox figcaption strong{font-size:14px}
.eng-lightbox figcaption span{color:rgba(255,255,255,.67);font-size:11px;line-height:1.55}
.eng-lightbox-arrow{position:absolute;z-index:4;top:50%;display:grid;width:41px;height:41px;place-items:center;border:1px solid rgba(255,255,255,.35);border-radius:50%;background:rgba(18,18,18,.8);color:#fff;font-size:17px;cursor:pointer;transform:translateY(-50%)}
.eng-lightbox-arrow--prev{left:-19px}.eng-lightbox-arrow--next{right:-19px}
.eng-lightbox-arrow:disabled{opacity:.4;cursor:not-allowed}

.eng-value{padding-block:99px;background:#ffffff}
.eng-value-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid #d5d5d5;border-left:1px solid #d5d5d5}
.eng-value-grid article{min-height:169px;padding:19px;border-right:1px solid #d5d5d5;border-bottom:1px solid #d5d5d5}
.eng-value-grid h3{margin-top:22px;font-size:17px;letter-spacing:-.04em}
.eng-value-grid p{max-width:300px;margin-top:7px;color:var(--text-secondary);font-size:14px;line-height:1.65}

.eng-related{padding-block:94px;background:#202020;color:#f4f4f4}
.eng-related .eng-section-heading>p{color:rgba(255,255,255,.68)}
.eng-related-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--eng-line-dark)}
.eng-related-grid>a{position:relative;min-height:196px;padding:20px 18px}
.eng-related-grid>a+a{border-left:1px solid var(--eng-line-dark)}
.eng-related-grid>a>span{color:#c81020;font-size:11px;font-weight:700;letter-spacing:.12em}
.eng-related-grid h3{margin-top:36px;font-size:17px;letter-spacing:-.035em}
.eng-related-grid p{max-width:210px;margin-top:8px;color:rgba(255,255,255,.65);font-size:14px;line-height:1.6}
.eng-related-grid>a>i{position:absolute;right:17px;bottom:16px;color:var(--eng-accent-light);font-size:14px;font-style:normal}
.eng-related-grid>a:hover{background:rgba(255,255,255,.04)}
.eng-model-links{display:flex;flex-wrap:wrap;align-items:center;gap:10px 17px;margin-top:20px;padding-top:17px;border-top:1px solid var(--eng-line-dark)}
.eng-model-links>span{flex-basis:100%;color:rgba(255,255,255,.65);font-size:11px;font-weight:700;letter-spacing:.12em}
.eng-model-links a{color:rgba(255,255,255,.78);font-size:11px}
.eng-model-links a:hover{color:#fff}

.eng-faq{padding-block:102px;background:var(--eng-paper)}
.eng-faq-grid{display:grid;grid-template-columns:minmax(255px,.6fr) minmax(0,1.25fr);gap:clamp(45px,8vw,116px)}
.eng-faq-intro{align-self:start;position:sticky;top:170px}
.eng-faq-intro h2{margin-top:22px;font-size:clamp(42px,4.7vw,63px);line-height:.98;letter-spacing:-.07em}
.eng-faq-intro h2 em{font-family:var(--serif);font-weight:400}
.eng-faq-intro>p:not(.eyebrow){margin-top:17px;color:var(--text-secondary);font-size:14px;line-height:1.75}
.eng-faq-intro .text-link{margin-top:17px}
.eng-faq-list details{border-top:1px solid var(--eng-line)}
.eng-faq-list details:last-child{border-bottom:1px solid var(--eng-line)}
.eng-faq-list summary{display:grid;grid-template-columns:32px 1fr 20px;align-items:center;gap:13px;min-height:63px;list-style:none;cursor:pointer}
.eng-faq-list summary::-webkit-details-marker{display:none}
.eng-faq-list summary>span{color:#a30e1b;font-size:14px;font-weight:700}
.eng-faq-list summary strong{font-size:14px;font-weight:600;line-height:1.45}
.eng-faq-list summary i{position:relative;width:18px;height:18px;border:1px solid #cecece;border-radius:50%}
.eng-faq-list summary i:before,.eng-faq-list summary i:after{position:absolute;top:8px;left:4px;width:8px;height:1px;background:#4f4f4f;content:""}
.eng-faq-list summary i:after{transform:rotate(90deg);transition:transform .2s}
.eng-faq-list details[open] summary i:after{transform:rotate(0)}
.eng-faq-list details>div{padding:0 32px 18px 45px}
.eng-faq-list details>div p{color:var(--text-secondary);font-size:14px;line-height:1.75}

.eng-final-cta{padding-block:85px 34px;background:#191919;color:#f5f5f5}
.eng-final-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,.45fr);align-items:center;gap:60px;padding-bottom:56px}
.eng-final-grid h2{max-width:780px;margin-top:19px;font-size:clamp(45px,6.4vw,84px);line-height:.93;letter-spacing:-.075em}
.eng-final-grid h2 em{font-family:var(--serif);font-weight:400;color:var(--eng-accent-light)}
.eng-final-grid>div:first-child>p:last-child{max-width:680px;margin-top:17px;color:rgba(255,255,255,.7);font-size:14px;line-height:1.75}
.eng-final-actions{display:flex;flex-direction:column;align-items:stretch;gap:10px}
.eng-final-actions .button{min-height:47px;justify-content:space-between;font-size:11px}
.eng-oem-link{padding:9px 2px;color:rgba(255,255,255,.76);font-size:11px;text-align:center}
.eng-final-note{padding-top:15px;border-top:1px solid var(--eng-line-dark);color:rgba(255,255,255,.48);font-size:11px;line-height:1.5}
.engineering-page .footer-column>a{display:flex;min-height:26px;align-items:center}

@media(max-width:1080px){
  .eng-hero-grid{grid-template-columns:minmax(0,1fr) minmax(350px,.92fr);column-gap:45px}
  .eng-hero-copy h1{font-size:clamp(56px,7.2vw,79px)}
  .eng-architecture-layout{grid-template-columns:minmax(0,1.3fr) minmax(230px,.7fr);gap:15px}
  .eng-architecture-visual{padding-inline:20px}
  .eng-tradeoffs article{padding-inline:14px}
  .eng-two-column,.eng-two-column--reverse{gap:42px}
  .eng-braking .eng-two-column{grid-template-columns:minmax(0,1fr) minmax(340px,.85fr)}
  .eng-power-flow{grid-template-columns:1fr 20px 1fr 20px 1fr 20px 1fr}
  .eng-power-flow article{padding:14px 11px}
  .eng-suspension-grid{grid-template-columns:minmax(0,1fr) minmax(330px,.95fr);gap:40px}
  .eng-driver-copy article{grid-template-columns:110px 1fr}
}
@media(max-width:820px){
  .eng-hero{min-height:0}
  .eng-hero-grid{grid-template-columns:minmax(0,1fr) minmax(300px,.9fr);column-gap:32px}
  .eng-hero-copy h1{font-size:clamp(52px,7.5vw,65px)}
  .eng-hero-strap{font-size:25px}
  .eng-architecture-layout,.eng-controller-layout,.eng-electrical-grid,.eng-suspension-grid,.eng-packaging-layout,.eng-balance-layout,.eng-drift-layout,.eng-video-layout{grid-template-columns:minmax(0,1fr)}
  .eng-architecture-visual{min-height:390px}
  .eng-architecture-copy{display:grid;grid-template-columns:.85fr 1.15fr}
  .eng-system-selector{grid-template-columns:1fr 1fr;align-content:start;border-right:1px solid var(--eng-line-dark);border-bottom:0}
  .eng-system-detail{margin:0}
  .eng-two-column,.eng-two-column--reverse,.eng-braking .eng-two-column,.eng-driver-layout{grid-template-columns:1fr 1fr;gap:30px}
  .eng-detail-copy h2,.eng-suspension h2,.eng-controller h2,.eng-electrical h2,.eng-packaging h2,.eng-balance h2,.eng-drift h2{font-size:clamp(38px,5.5vw,54px)}
  .eng-hotspot-panel{grid-template-columns:1fr 1.5fr;gap:15px}
  .eng-hotspot-detail{grid-column:1/-1;min-height:0;padding:12px 0 0;border-top:1px solid #cfcfcf;border-left:0}
  .eng-power-flow{grid-template-columns:1fr 20px 1fr;gap:8px 0}
  .eng-power-flow>i:nth-of-type(2){display:none}
  .eng-power-flow article:nth-of-type(3){grid-column:1}
  .eng-power-flow article:nth-of-type(4){grid-column:3}
  .eng-power-flow>i:nth-of-type(3){grid-column:2;grid-row:2;transform:rotate(90deg)}
  .eng-power-flow article:nth-of-type(3){grid-row:2}
  .eng-power-flow article:nth-of-type(4){grid-row:2}
  .eng-power-footer{align-items:flex-end}
  .eng-venue-priorities{grid-template-columns:repeat(2,minmax(0,1fr))}
  .eng-venue-priorities article:nth-child(3){border-left:0}
  .eng-custom-levels{grid-template-columns:minmax(0,1fr)}
  .eng-custom-levels article{min-height:0}
  .eng-custom-levels article+article{border-top:1px solid var(--eng-line);border-left:0}
  .eng-custom-levels p{min-height:0}
  .eng-related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .eng-related-grid>a:nth-child(3){border-left:0}
  .eng-related-grid>a:nth-child(n+3){border-top:1px solid var(--eng-line-dark)}
  .eng-faq-grid{grid-template-columns:minmax(210px,.6fr) minmax(0,1.2fr);gap:34px}
  .eng-faq-intro{position:static}
  .eng-final-grid{grid-template-columns:1fr minmax(195px,.43fr);gap:32px}
}
@media(max-width:760px){
  .engineering-page :where(section[id]){scroll-margin-top:122px}
  .eng-hero{padding-top:68px}
  .eng-hero-grid{grid-template-columns:minmax(0,1fr);grid-template-areas:"crumb" "copy" "media";row-gap:18px;padding-top:18px;padding-bottom:87px}
  .eng-hero-copy{padding:0}
  .eng-hero-copy h1{max-width:640px;margin-top:19px;font-size:clamp(50px,11vw,76px)}
  .eng-hero-strap{margin-top:14px;font-size:clamp(23px,5.6vw,31px)}
  .eng-hero-description{margin-top:11px;font-size:11px}
  .eng-hero-actions{margin-top:18px}
  .eng-hero-actions .button{min-height:46px}
  .eng-preview-note{font-size:11px}
  .eng-hero-media{width:100%;max-height:none;aspect-ratio:1.38}
  .eng-hero-rail>.container{min-height:49px;justify-content:flex-start;overflow-x:auto;scrollbar-width:none;font-size:11px}
  .eng-hero-rail>.container::-webkit-scrollbar{display:none}
  .eng-section-heading{grid-template-columns:minmax(0,1fr);gap:19px;margin-bottom:33px}
  .eng-section-heading h2,.eng-detail-copy h2,.eng-suspension h2,.eng-controller h2,.eng-electrical h2,.eng-packaging h2,.eng-balance h2,.eng-drift h2{margin-top:17px;font-size:clamp(39px,9.2vw,60px)}
  .eng-intro-copy .eng-lead,.eng-lead{font-size:18px}
  .eng-philosophy,.eng-architecture,.eng-geometry,.eng-detail,.eng-suspension,.eng-powertrain,.eng-battery,.eng-controller,.eng-electrical,.eng-ergonomics,.eng-packaging,.eng-balance,.eng-drift,.eng-venue,.eng-custom,.eng-development,.eng-validation,.eng-gallery,.eng-value,.eng-related,.eng-faq{padding-block:66px}
  .eng-principles{grid-template-columns:minmax(0,1fr)}
  .eng-principles article{min-height:0;padding:18px 0}
  .eng-principles article+article{padding-left:0;border-top:1px solid var(--eng-line);border-left:0}
  .eng-principles h3{margin-top:12px}
  .eng-principles p{max-width:550px}
  .eng-manifesto{margin-top:57px;font-size:clamp(39px,9vw,61px);text-align:left}
  .eng-architecture-layout{gap:10px}
  .eng-architecture-visual{min-height:0;padding:20px 13px 39px}
  .eng-system-svg{margin-top:15px}
  .eng-map-point{width:28px;height:28px;font-size:11px}
  .eng-map-point--driver{top:37%;left:48.5%}.eng-map-point--chassis{top:54%;left:43%}.eng-map-point--steering{top:47%;left:22%}.eng-map-point--battery{top:51%;left:58%}.eng-map-point--drive{top:56%;left:72%}
  .eng-illustration-note{right:12px;bottom:11px;left:12px;font-size:7px}
  .eng-architecture-copy{grid-template-columns:minmax(0,1fr)}
  .eng-system-selector{grid-template-columns:repeat(5,minmax(0,1fr));padding:9px;gap:5px;border-right:0;border-bottom:1px solid var(--eng-line-dark)}
  .eng-system-selector button{min-height:36px;padding:6px 4px;font-size:14px;text-align:center}
  .eng-system-detail{padding:18px}
  .eng-tradeoffs{grid-template-columns:1fr 1fr}
  .eng-tradeoffs article{min-height:0;padding:15px}
  .eng-tradeoffs article:nth-child(2){border-right:0}
  .eng-tradeoffs article:nth-child(n+3){border-top:1px solid var(--eng-line-dark)}
  .eng-tradeoffs h3{margin-top:12px}
  .eng-tradeoffs p{font-size:14px}
  .eng-step-nav{top:68px}
  .eng-step-nav-inner{display:block;min-height:47px}
  .eng-step-label{display:none}
  .eng-step-links{justify-content:flex-start;margin-inline:-8px;width:calc(100% + 16px)}
  .eng-step-links a{padding:16px 12px 14px;font-size:11px}
  .eng-two-column,.eng-two-column--reverse,.eng-braking .eng-two-column,.eng-driver-layout{grid-template-columns:minmax(0,1fr);gap:25px}
  .eng-two-column--reverse .eng-evidence-card{order:2}
  .eng-detail-copy h2,.eng-suspension h2,.eng-controller h2,.eng-electrical h2,.eng-packaging h2,.eng-balance h2,.eng-drift h2{font-size:clamp(39px,9.2vw,59px)}
  .eng-evidence-card,.eng-evidence-card--chassis{aspect-ratio:1.32}
  .eng-hotspot-panel{grid-template-columns:minmax(0,1fr);gap:13px;margin-top:18px;padding:15px}
  .eng-hotspot-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .eng-hotspot-detail{grid-column:auto}
  .eng-geometry-grid{grid-template-columns:minmax(0,1fr);gap:9px}
  .eng-geometry-figure svg{max-height:260px}
  .eng-geometry-notes{grid-template-columns:minmax(0,1fr)}
  .eng-geometry-notes article{padding:14px 0}
  .eng-geometry-notes article+article{padding-left:0;border-top:1px solid #cecece;border-left:0}
  .eng-steering-concepts{grid-template-columns:minmax(0,1fr);gap:7px;margin-top:27px;padding-block:17px}
  .eng-steering-concepts>i{transform:rotate(90deg)}
  .eng-suspension-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .eng-suspension-board{padding:15px}
  .eng-suspension-options article{min-height:165px;padding:14px 11px}
  .eng-power-flow{grid-template-columns:1fr 18px 1fr;gap:7px 0;margin-top:30px}
  .eng-power-flow article{min-height:118px;padding:12px 9px}
  .eng-power-flow article b{margin-top:15px;font-size:14px}
  .eng-power-flow article small{font-size:11px}
  .eng-power-footer{align-items:flex-start;flex-direction:column;margin-top:25px;padding-top:20px}
  .eng-power-footer .eng-manifesto{text-align:left;font-size:clamp(37px,8.2vw,55px)}
  .eng-battery-effects{grid-template-columns:minmax(0,1fr);gap:12px;margin-top:28px}
  .eng-battery-effects>div{justify-content:flex-start;gap:9px 16px}
  .eng-controller-layout,.eng-electrical-grid,.eng-packaging-layout,.eng-balance-layout,.eng-drift-layout,.eng-video-layout{grid-template-columns:minmax(0,1fr);gap:27px}
  .eng-controller h2,.eng-electrical h2,.eng-packaging h2,.eng-balance h2,.eng-drift h2{font-size:clamp(39px,9.2vw,59px)}
  .eng-tab-list{gap:0}
  .eng-tab-list button{flex:1;padding-inline:6px;font-size:11px}
  .eng-tab-panel{min-height:130px}
  .eng-electrical-visual{padding:15px}
  .eng-driver-diagram{padding:15px}
  .eng-driver-copy article{grid-template-columns:110px 1fr}
  .eng-dimensions-card{padding:15px}
  .eng-dimension-lines{min-height:235px}
  .eng-dim-length:after,.eng-dim-wheelbase:after{width:125px}
  .eng-dim-width:after,.eng-dim-height:after{width:42px}
  .eng-weight-visual{padding:15px}
  .eng-drift-flow{padding:15px}
  .eng-drift-flow>span{padding:14px}
  .eng-venue .eng-section-heading{margin-bottom:24px}
  .eng-venue-priorities article{padding:14px 8px 14px 0}
  .eng-venue-priorities article+article{padding-left:9px}
  .eng-custom-levels article{padding:18px}
  .eng-custom-levels h3{margin-top:14px}
  .eng-development-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .eng-development-steps li{min-height:125px;padding:13px}
  .eng-development-steps b{margin-top:18px}
  .eng-validation-compare{grid-template-columns:minmax(0,1fr);margin-top:25px}
  .eng-validation-compare article{padding:18px}
  .eng-compare-divider{min-height:39px}
  .eng-compare-divider span{transform:rotate(90deg)}
  .eng-video{padding-block:53px}
  .eng-video-layout{gap:23px}
  .eng-video-layout h2{font-size:clamp(37px,8.6vw,55px)}
  .eng-gallery .eng-section-heading{margin-bottom:24px}
  .eng-gallery-filters{gap:5px}
  .eng-gallery-filters button{min-height:31px;padding:7px 9px;font-size:11px}
  .eng-gallery-filters #engineering-gallery-status{flex-basis:100%;margin:6px 0 0}
  .eng-gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:minmax(140px,auto);gap:7px}
  .eng-gallery-card{min-height:140px}
  .eng-gallery-card--wide{grid-column:span 2;grid-row:span 1;min-height:205px}
  .eng-gallery-stamp{font-size:11px}
  .eng-gallery-card strong{font-size:11px}
  .eng-lightbox-arrow{width:34px;height:34px}
  .eng-lightbox-arrow--prev{left:6px}.eng-lightbox-arrow--next{right:6px}
  .eng-value-grid{grid-template-columns:1fr 1fr}
  .eng-value-grid article{min-height:151px;padding:14px}
  .eng-value-grid h3{margin-top:15px;font-size:15px}
  .eng-related-grid>a{min-height:156px;padding:15px 13px}
  .eng-related-grid h3{margin-top:26px;font-size:15px}
  .eng-model-links{gap:9px 13px}
  .eng-faq-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .eng-faq-intro{max-width:560px}
  .eng-faq-intro h2{font-size:clamp(42px,9vw,58px)}
  .eng-faq-list summary{grid-template-columns:25px 1fr 18px;gap:8px;min-height:59px}
  .eng-faq-list summary strong{font-size:14px}
  .eng-faq-list details>div{padding:0 22px 16px 33px}
  .eng-final-cta{padding-block:64px 30px}
  .eng-final-grid{grid-template-columns:minmax(0,1fr);gap:24px;padding-bottom:33px}
  .eng-final-grid h2{font-size:clamp(45px,10vw,67px)}
  .eng-final-actions{max-width:400px}
  .engineering-page .footer-column>a{min-height:26px}
}
@media(max-width:430px){
  .eng-hero-grid,.eng-philosophy>.container,.eng-architecture>.container,.eng-geometry>.container,.eng-detail>.container,.eng-suspension>.container,.eng-powertrain>.container,.eng-battery>.container,.eng-controller>.container,.eng-electrical>.container,.eng-ergonomics>.container,.eng-packaging>.container,.eng-balance>.container,.eng-drift>.container,.eng-venue>.container,.eng-custom>.container,.eng-development>.container,.eng-validation>.container,.eng-gallery>.container,.eng-value>.container,.eng-related>.container,.eng-faq>.container,.eng-final-cta>.container{width:calc(100% - 34px)}
  .eng-hero-copy h1{font-size:clamp(48px,12vw,56px)}
  .eng-hero-actions{gap:7px}
  .eng-hero-actions .button{flex:1;justify-content:space-between;gap:9px;padding-inline:11px;font-size:11px}
  .eng-hero-media{aspect-ratio:1.23}
  .eng-architecture-visual{padding-inline:8px}
  .eng-map-point{width:25px;height:25px}
  .eng-map-point--driver{top:37%;left:48%}.eng-map-point--chassis{top:54%;left:43%}.eng-map-point--steering{top:46%;left:21%}.eng-map-point--battery{top:51%;left:58%}.eng-map-point--drive{top:56%;left:72%}
  .eng-tradeoffs article{padding:12px}
  .eng-tradeoffs article>span{font-size:11px}
  .eng-tradeoffs h3{font-size:15px}
  .eng-step-links a{padding-inline:10px}
  .eng-fact-row span{font-size:11px}
  .eng-hotspot-list button{font-size:11px}
  .eng-geometry-figure svg{padding-inline:4px}
  .eng-suspension-options article{min-height:185px}
  .eng-venue-priorities{grid-template-columns:minmax(0,1fr)}
  .eng-venue-priorities article+article{padding-left:0;border-top:1px solid #cecece;border-left:0}
  .eng-driver-copy article{grid-template-columns:92px 1fr;gap:8px}
  .eng-driver-copy article span{font-size:11px}
  .eng-dimension-lines{min-height:205px}
  .eng-dim-length:after,.eng-dim-wheelbase:after{width:100px}
  .eng-dim-width:after,.eng-dim-height:after{width:30px}
  .eng-gallery-grid{grid-auto-rows:minmax(122px,auto)}
  .eng-gallery-card{min-height:122px}
  .eng-gallery-card--wide{min-height:175px}
  .eng-value-grid article{min-height:164px;padding:11px}
  .eng-related-grid>a{min-height:145px}
  .eng-model-links a{font-size:11px}
  .eng-faq-list summary{grid-template-columns:22px 1fr 16px;gap:6px}
  .eng-faq-list summary strong{font-size:14px}
}
@media(prefers-reduced-motion:reduce){
  .engineering-page *, .engineering-page *:before, .engineering-page *:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* Usability fixes, 2026-10-07 */
@media(max-width:640px){.eng-system-selector{grid-template-columns:repeat(2,minmax(0,1fr))}.eng-system-selector button{min-height:44px;padding:9px;text-align:left}.eng-system-selector button:last-child{grid-column:1/-1}}
/* Keep the whole conceptual chassis visible on narrow screens. */
.eng-hero-media img[data-image-kind=concept],.eng-evidence-card--chassis img[data-image-kind=concept]{object-fit:contain;background:#252525}