:root{--paper:#f4f2e9;--ink:#20221f;--accent:#ef4926;--line:#cccfc4;--muted:#62665c}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:1rem;line-height:1.65}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:5px}button{border:0}img{display:block;width:100%;height:100%;object-fit:cover}figure,p,h1,h2,h3{margin:0}h1,h2,h3{line-height:1.2}h1,h2{letter-spacing:-.055em}h2{font-size:clamp(2.125rem,4vw,3.8125rem);font-weight:800}.wrap{width:min(1320px,calc(100% - 96px));margin-inline:auto}.orange{color:var(--accent)}.eyebrow{font-size:0.75rem;font-weight:700;letter-spacing:.13em}.section{padding-block:85px}.site-header{min-height:108px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:32px}.brand{font-family:Arial,sans-serif;font-size:1.875rem;font-weight:900;letter-spacing:-1.7px;white-space:nowrap;line-height:1}.brand span{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:0.875rem;letter-spacing:-.4px;display:inline-block;margin-left:9px;vertical-align:top;padding-top:3px}.site-header nav{display:flex;align-items:center;gap:37px;font-size:0.875rem}.site-header nav a{min-height:44px;display:flex;align-items:center}.site-header nav a:hover{color:var(--accent)}.site-header nav .nav-cta{border:1px solid var(--ink);padding:9px 19px;gap:22px}.menu-toggle{display:none}.hero{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding-top:38px;min-height:645px}.hero-copy{padding-top:47px;display:flex;align-items:flex-start;flex-direction:column}.tiny-dot{display:inline-block;width:7px;height:7px;background:var(--accent);border-radius:50%;margin-right:8px;vertical-align:1px}.hero h1{font-size:clamp(2.875rem,5.6vw,5.125rem);font-weight:900;line-height:1.22;margin-top:36px;white-space:nowrap}.hero-description{margin-top:25px;color:#63675e;line-height:1.95}.hero-actions{display:flex;align-items:center;gap:25px;margin-top:34px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;padding:16px 22px;font-size:0.875rem;font-weight:700;min-height:54px;transition:background .2s,color .2s}.button.dark{color:var(--paper);background:var(--ink)}.button.dark:hover{background:var(--accent)}.play{font-size:0.75rem}.text-link{display:inline-flex;align-items:center;gap:20px;border:0;border-bottom:1px solid currentColor;background:transparent;min-height:44px;font-size:0.875rem;padding:6px 0;font-weight:600}.text-link:hover{color:var(--accent)}.hero-note{display:flex;width:100%;justify-content:space-between;border-top:1px solid var(--line);font-size:0.75rem;padding-top:18px;margin-top:auto;margin-bottom:2px;color:var(--muted);gap:16px}.hero-note span:last-child{font-size:0.75rem;letter-spacing:.06em}.hero-image{position:relative;height:566px;overflow:hidden;background:#b3b7a9}.hero-image img{object-position:center 48%}.hero-image figcaption{position:absolute;bottom:0;background:linear-gradient(transparent,rgba(0,0,0,.4));color:white;display:flex;justify-content:space-between;gap:12px;align-items:end;width:100%;padding:40px 20px 17px;font-size:0.75rem}.hero-image figcaption span:last-child{font-size:0.75rem;letter-spacing:.08em}.photo-sticker{position:absolute;right:20px;top:22px;color:var(--ink);background:var(--paper);border-radius:50%;width:117px;height:117px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;transform:rotate(12deg);font-size:1.25rem;font-weight:900;line-height:.95;letter-spacing:-1px}.photo-sticker span{font-size:0.75rem;font-weight:500;letter-spacing:1px;margin-top:8px}.wordmark-band{padding-block:24px 33px;display:flex;align-items:center;gap:32px;border-bottom:1px solid var(--line)}.wordmark-band>span{font-family:Impact,"Arial Narrow",Arial,sans-serif;font-size:clamp(68px,13vw,190px);font-weight:900;letter-spacing:-.065em;line-height:1;flex:1}.wordmark-band p{font-weight:700;font-size:0.9375rem;white-space:nowrap;line-height:1.7}.section-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:42px}.section-note{font-size:0.75rem;letter-spacing:.12em;color:var(--muted)}.fold-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:8%}.fold-visual{background:#e8e9e1;position:relative;min-height:585px;display:flex;flex-direction:column}.image-label{display:flex;justify-content:space-between;padding:22px 24px;font-size:0.75rem;letter-spacing:.12em}.fold-visual>img{height:465px;object-fit:contain;mix-blend-mode:multiply;padding:0 25px 12px}.segmented{display:flex;margin:0 auto 22px;background:var(--paper);padding:4px;gap:4px;max-width:calc(100% - 32px)}.segmented button{padding:11px 18px;font-size:0.8125rem;background:transparent;min-height:44px;display:flex;align-items:center;gap:20px}.segmented button[aria-pressed=true]{background:var(--ink);color:white}.fold-copy{padding-top:29px}.body-copy{color:#666b60;line-height:1.95;margin-top:24px;font-size:0.9375rem;max-width:470px}.feature-row{display:flex;gap:20px;border-top:1px solid var(--line);padding:22px 0}.feature-row>span{color:var(--accent);font-family:monospace;font-size:0.75rem}.feature-row h3{font-size:1.0625rem;margin-bottom:8px}.feature-row p{font-size:0.875rem;color:#74786d;line-height:1.8}.fold-copy .feature-row:first-of-type{margin-top:29px}.fold-copy .text-link{margin-top:8px}.colors-section{background:#e9e9df}.colors-heading{display:flex;justify-content:space-between;align-items:end;gap:28px}.colors-heading>p,.roam-heading>p{font-size:0.875rem;color:#74786d;line-height:1.95}.color-stage{position:relative;display:grid;grid-template-columns:1fr 2.3fr;min-height:530px;margin-top:32px;border-top:1px solid #c6c9bd;border-bottom:1px solid #c6c9bd}.color-info{padding-top:42px;display:flex;flex-direction:column;align-items:flex-start;z-index:1}.color-index{font-size:0.75rem;font-family:monospace;color:var(--muted)}.color-info h3{font-size:2.625rem;margin-top:17px;letter-spacing:-2px}.color-info>p{font-size:0.875rem;margin-top:12px;color:var(--muted)}.color-model{margin-top:auto;margin-bottom:37px;font-size:0.75rem;font-weight:700;line-height:1.35;letter-spacing:.07em}.color-photo{height:530px;display:flex;justify-content:center;padding:14px 55px 14px 0}.color-photo img{object-fit:contain;mix-blend-mode:multiply}.vertical-label{position:absolute;right:0;top:40px;writing-mode:vertical-rl;font-size:0.75rem;letter-spacing:.14em}.color-controls{display:flex;justify-content:space-between;gap:12px;padding-top:26px}.color-controls button{display:flex;align-items:center;gap:12px;background:transparent;border-bottom:2px solid transparent;padding:10px 8px 15px;font-size:0.8125rem;min-height:54px}.color-controls button[aria-pressed=true]{border-color:var(--ink);font-weight:700}.swatch{width:24px;height:24px;border-radius:50%;display:inline-block;border:1px solid #0002;flex-shrink:0}.swatch.black{background:#27282a}.swatch.white{background:#f8f7f0}.swatch.blue{background:#91c3d1}.swatch.green{background:#2d7562}.swatch.red{background:#a72d31}.swatch.earth{background:#ab8b5e;box-shadow:inset -10px 0 #c6c69c}.color-footnote{font-size:0.75rem;color:var(--muted);margin-top:22px}.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:8%;align-items:center}.story-photo{height:700px;position:relative;background:#ddd}.story-photo img{object-position:center}.story-photo figcaption{position:absolute;bottom:22px;left:24px;font-size:0.75rem;background:var(--paper);padding:8px 15px}.story-copy h2{margin-top:23px}.story-copy .feature-row:first-of-type{margin-top:28px}.story-copy .feature-row{padding:19px 0}.roam-section{padding-top:20px}.roam-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:42px}.gallery{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}.gallery figure:nth-child(2){padding-top:70px}.gallery figure:nth-child(3){padding-top:25px}.gallery img{height:430px}.gallery figcaption{display:flex;justify-content:space-between;font-size:0.75rem;gap:12px;border-bottom:1px solid var(--line);padding:14px 0}.closing{background:var(--accent);padding:63px 0;color:var(--ink)}.closing h2{font-size:clamp(2.5rem,6.4vw,5.5rem);margin-top:23px;line-height:1.2}.closing h2>span{font-size:.9em;display:inline-block;margin-left:30px}.closing-bottom{display:flex;align-items:end;justify-content:space-between;margin-top:46px;gap:30px}.closing-bottom p{font-size:0.8125rem;line-height:1.9}.button.light{background:var(--paper)}.button.light:hover{background:var(--ink);color:white}.site-footer{display:flex;align-items:center;justify-content:space-between;padding-block:37px;gap:24px}.site-footer .brand{font-size:1.5rem}.site-footer .brand span{font-size:0.75rem}.site-footer p{font-size:0.75rem;color:var(--muted)}.site-footer .text-link{font-size:0.75rem}dialog{padding:0;border:0;background:var(--paper);color:var(--ink);width:min(850px,calc(100% - 32px));max-height:90vh}dialog::backdrop{background:#101510cf;backdrop-filter:blur(6px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 20px}.dialog-header h2{font-size:1rem;letter-spacing:0}.dialog-header button{background:none;font-size:1.875rem;width:44px;height:44px;flex-shrink:0}dialog video{display:block;width:100%;max-height:75vh;background:#141713}.skip-link{position:fixed;top:-70px;left:16px;z-index:100;background:var(--ink);color:white;padding:12px}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1450px){.hero h1{font-size:5.125rem}.hero-image{height:625px}.hero{min-height:703px}}@media(max-width:1050px){.wrap{width:calc(100% - 56px)}.site-header nav{gap:22px}.hero{gap:24px;min-height:590px}.hero-copy{padding-top:28px}.hero h1{font-size:clamp(2.625rem,5.6vw,3.875rem)}.hero-image{height:520px}.hero-actions{gap:16px}.hero-note{flex-direction:column;gap:4px}.section{padding-block:64px}.fold-grid,.story-grid{gap:5%}.fold-visual{min-height:540px}.fold-visual>img{height:420px}.fold-copy{padding-top:15px}.color-info h3{font-size:2.1875rem}.color-controls button{gap:8px;padding-inline:2px}.story-photo{height:680px}.gallery{gap:16px}.gallery img{height:330px}.roam-section{padding-top:10px}}
@media(max-width:760px){.wrap{width:calc(100% - 36px)}.site-header{min-height:83px;position:relative;gap:12px;flex-wrap:wrap}.brand{font-size:1.6875rem}.brand span{font-size:0.75rem}.menu-toggle{display:flex;align-items:center;gap:18px;background:none;font-size:0.8125rem;min-height:44px}.menu-toggle span{font-size:1.4375rem}.site-header nav{display:none;flex-basis:100%;padding:5px 0 22px;gap:4px;align-items:stretch;flex-direction:column}.site-header nav.is-open{display:flex}.site-header nav a{padding:10px 0}.site-header nav .nav-cta{padding:10px 15px;justify-content:space-between;margin-top:6px}.hero{grid-template-columns:1fr;gap:26px;padding-top:22px;min-height:0}.hero-copy{padding-top:12px}.hero .eyebrow{font-size:0.75rem}.hero h1{font-size:clamp(2.8125rem,9.5vw,4.5rem);margin-top:24px;white-space:normal}.hero-description{margin-top:22px;font-size:0.9375rem}.hero-actions{margin-top:24px;gap:22px}.hero-actions .button{padding:15px 16px;gap:12px}.hero-note{display:none}.hero-image{height:500px}.hero-image figcaption span:last-child{font-size:0.75rem}.photo-sticker{width:98px;height:98px;font-size:1.125rem}.wordmark-band{padding-block:23px;gap:15px}.wordmark-band>span{font-size:13vw;letter-spacing:-.07em}.wordmark-band p{font-size:0.75rem}.section{padding-block:47px}.section-heading{margin-bottom:28px}.section-note{font-size:0.75rem;text-align:right;max-width:42%}.section-heading .eyebrow{font-size:0.75rem}.fold-grid,.story-grid{grid-template-columns:1fr;gap:31px}.fold-visual{min-height:0}.fold-visual>img{height:420px}.fold-copy{padding-top:0}.fold-copy h2{font-size:2.375rem}.body-copy{font-size:0.9375rem}.feature-row{padding-block:18px}.colors-heading{display:block}.colors-heading h2{font-size:2.125rem}.colors-heading>p{margin-top:17px}.color-stage{grid-template-columns:1fr;min-height:0;margin-top:25px}.color-info{padding-top:20px;display:grid;grid-template-columns:1fr auto;width:100%;gap:8px 15px}.color-index{grid-column:2;grid-row:1;align-self:center}.color-info h3{grid-column:1;grid-row:1;font-size:1.875rem;letter-spacing:-1px;margin:0}.color-info>p{grid-row:2;grid-column:1;margin:0;font-size:0.75rem}.color-model{display:none}.color-photo{height:440px;padding:15px 20px}.vertical-label{display:none}.color-controls{display:grid;grid-template-columns:repeat(3,1fr);gap:6px 12px;padding-top:16px}.color-controls button{justify-content:center;font-size:0.75rem;gap:9px;padding:10px 4px}.swatch{width:22px;height:22px}.color-footnote{font-size:0.75rem;margin-top:16px}.story-photo{height:480px}.story-copy h2{margin-top:16px;font-size:2.375rem}.roam-section{padding-top:10px}.roam-heading{display:block;margin-bottom:27px}.roam-heading h2{font-size:2.375rem}.roam-heading>p{margin-top:20px}.gallery{gap:12px;grid-template-columns:1fr 1fr}.gallery figure:nth-child(2){padding-top:42px}.gallery figure:nth-child(3){padding-top:0;grid-column:1/-1}.gallery img{height:280px}.gallery figure:nth-child(3) img{height:400px;object-position:center 40%}.gallery figcaption{font-size:0.75rem;align-items:start}.closing{padding-block:43px}.closing h2{font-size:clamp(1.9375rem,6.9vw,3.3125rem);line-height:1.3;letter-spacing:-.05em}.closing h2>span{margin-left:10px}.closing-bottom{display:block;margin-top:26px}.closing-bottom .button{margin-top:24px}.site-footer{flex-wrap:wrap;padding-block:26px;gap:20px}.site-footer .brand{font-size:1.5rem}.site-footer p{order:3;flex-basis:100%;font-size:0.75rem}.site-footer .text-link{margin-left:auto}.dialog-header{padding-inline:14px}.dialog-header h2{font-size:0.875rem}}
@media(max-width:390px){.hero-image{height:430px}.hero-actions{gap:12px}.hero-actions .button{font-size:0.75rem;padding-inline:12px}.hero-actions .text-link{font-size:0.75rem;gap:8px}.fold-visual>img{height:350px}.color-photo{height:380px}.segmented button{font-size:0.75rem;padding-inline:12px}.story-photo{height:410px}.gallery img{height:230px}.gallery figure:nth-child(3) img{height:340px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

/* Readable Chinese body copy and responsive text enlargement. */
.body-copy,.hero-description,.feature-row p{font-size:1rem}.color-controls button,.segmented button,.menu-toggle{font-size:.875rem}.colors-heading>p,.roam-heading>p,.closing-bottom p{font-size:1rem}.hero-image figcaption{flex-wrap:wrap}.wordmark-band{min-width:0}.wordmark-band>span{min-width:0}.hero-copy,.fold-copy,.story-copy{min-width:0}

/* Label scale: labels 14px, metadata never below 12px, AA-contrast secondary text. */
.eyebrow{font-size:.875rem;letter-spacing:.1em}.image-label,.story-photo figcaption,.gallery figcaption,.hero-note span:first-child,.site-footer .text-link,.hero-actions .button,.hero-actions .text-link,.color-footnote{font-size:.875rem}.color-info>p{font-size:1rem}.site-footer p{font-size:.8125rem}.feature-row p,.colors-heading>p,.roam-heading>p{color:#5c6056}

/* Whole-product crops: frames follow the 2:3 portrait photos so faces and both wheels stay in view. */
.hero-image{height:auto;aspect-ratio:1/1;align-self:start}.hero-image img{position:absolute;inset:0;object-position:50% 80%}.gallery img,.gallery figure:nth-child(3) img{height:auto;aspect-ratio:4/5;object-position:50% 85%}

/* Text enlargement: let rows wrap instead of overflowing; sticker scales with its type. */
.site-header{flex-wrap:wrap;row-gap:0}.site-header nav{flex-wrap:wrap;row-gap:0}.brand{display:inline-block;padding-block:max(0px,calc((44px - 1em) / 2))}.wordmark-band{flex-wrap:wrap;row-gap:8px;overflow:clip}.wordmark-band>span{flex:1 1 auto}.color-controls,.segmented{flex-wrap:wrap}.photo-sticker{width:5.85em;height:5.85em}.menu-toggle{min-width:44px}

/* Focus: visible on every surface, including the vermilion closing band. */
:where(a,button,video,[tabindex]):focus-visible{outline:3px solid var(--accent);outline-offset:4px}.closing :focus-visible{outline-color:var(--ink)}.segmented button:focus-visible,.color-controls button:focus-visible{outline-offset:-3px}

@media(max-width:1050px){.hero-image{aspect-ratio:4/5}.hero-image img{object-position:50% 85%}}
@media(max-width:760px){.site-header nav{padding-top:8px}.site-header nav a{font-size:1.0625rem;min-height:52px;padding:12px 0;border-bottom:1px solid var(--line)}.site-header nav .nav-cta{border:1px solid var(--ink);margin-top:16px;padding:12px 16px}.wordmark-band>span{flex-basis:100%;font-size:15vw}.wordmark-band p{margin-left:auto;font-size:.9375rem}.photo-sticker{width:5.45em;height:5.45em}.color-info>p{font-size:1rem}.color-controls{grid-template-columns:repeat(auto-fit,minmax(min(100%,5.75rem),1fr))}.color-controls button{font-size:.875rem;gap:7px;padding-inline:2px;min-width:0}.gallery figcaption{font-size:.875rem}.site-footer p{font-size:.8125rem}}
@media(max-width:390px){.hero-actions .button,.hero-actions .text-link{font-size:.875rem}}

.section-note{min-width:0;overflow-wrap:anywhere}.section-heading>.eyebrow{min-width:0}.hero h1{white-space:normal}
/* Keep small accent text and closing copy readable on their surfaces. */
.feature-row>span,.eyebrow.orange,.text-link:hover,.site-header nav a:hover{color:#bc3518}.button.dark:hover{background:#bc3518}.closing{color:#151713}

/* Mobile pass: lock text inflation, notch-safe gutters (viewport-fit=cover), dynamic viewport units, swipeable gallery. */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}dialog{max-height:90dvh}dialog video{max-height:75dvh}
@media(max-width:1050px){.wrap{width:calc(100% - max(28px,env(safe-area-inset-left,0px)) - max(28px,env(safe-area-inset-right,0px)))}}
@media(max-width:760px){
 .wrap{width:calc(100% - max(18px,env(safe-area-inset-left,0px)) - max(18px,env(safe-area-inset-right,0px)))}
 input,select,textarea{font-size:max(16px,1em)}
 .gallery{display:flex;gap:12px;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x mandatory;margin-inline:calc((100vw - 100%)/-2);padding-inline:calc((100vw - 100%)/2);scroll-padding-inline:calc((100vw - 100%)/2);scrollbar-width:none;-webkit-overflow-scrolling:touch}
 .gallery::-webkit-scrollbar{display:none}
 .gallery figure,.gallery figure:nth-child(2),.gallery figure:nth-child(3){flex:0 0 min(78%,340px);padding-top:0;grid-column:auto;scroll-snap-align:start;min-width:0}
 .gallery img,.gallery figure:nth-child(3) img{height:auto;aspect-ratio:4/5;object-position:50% 85%}
 dialog{width:calc(100% - 24px);max-height:calc(100dvh - 24px - env(safe-area-inset-top,0px) - env(safe-area-inset-bottom,0px))}.dialog-header button{width:48px;height:48px}
}