*{box-sizing:border-box;margin:0;padding:0}
html{color-scheme:dark;scroll-behavior:smooth;scroll-padding-top:90px}
body{overflow-x:clip}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;color:inherit;-webkit-tap-highlight-color:transparent}
button,a{touch-action:manipulation}
button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:1px solid #b8b8b8;outline-offset:6px}
html[lang="zh-CN"] [data-locale="en"],html[lang="en"] [data-locale="zh"]{display:none}
.skip-link{position:fixed;left:22px;top:-80px;z-index:20;background:#eee;color:#080808;padding:12px 20px;border-radius:24px}.skip-link:focus{top:12px}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-size:16px;font-weight:600;letter-spacing:-.03em}
.intro-navigation{position:relative;display:flex;align-items:flex-start}
.intro-back{position:absolute;left:0;top:calc(100% + 10px);display:inline-flex;align-items:center;gap:5px;white-space:nowrap;color:#929292;font-size:12px;line-height:20px}
.language-toggle{border:1px solid #343434;border-radius:20px;background:transparent;color:#666;padding:8px 12px;font-size:10px;cursor:pointer}
html[lang="zh-CN"] .language-zh,html[lang="en"] .language-en{color:var(--text)}
.intro-wrap{width:min(calc(100% - 12vw),var(--page-width));margin-inline:auto}
.product-nav{position:sticky;top:0;z-index:5;margin-top:18px;background:#050505df;border-block:1px solid #232323;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.product-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:58px}
.product-nav-name{font-size:18px;font-weight:550;letter-spacing:-.025em;white-space:nowrap}
.product-nav-links{display:flex;gap:26px;font-size:11px;color:#aaa;white-space:nowrap}
.product-nav-links a:hover,.intro-back:hover{color:#f3f3f3}
.intro-hero{text-align:center;padding-top:72px;scroll-margin-top:80px}
.eyebrow{color:#828282;font-size:11px;line-height:1.5;letter-spacing:.14em;font-weight:500}
.product-wordmark{margin-top:27px;color:#ddd;font-size:25px;line-height:1.3;letter-spacing:-.04em}
h1{margin-top:22px;font-size:clamp(52px,7.5vw,102px);font-weight:600;line-height:1.08;letter-spacing:-.065em;text-wrap:balance}
.hero-description{margin:29px auto 0;max-width:650px;color:#a2a2a2;font-size:18px;line-height:1.8;text-wrap:balance}
.text-link{display:inline-flex;align-items:center;gap:10px;color:#ddd;font-size:13px;line-height:1.5;transition:color .18s ease}
.text-link:hover{color:#fff}.text-link:hover>span:last-child{transform:translateX(3px)}.text-link>span:last-child{transition:transform .18s ease}
.hero-link{margin-top:23px}
.hero-visual{margin-top:42px}.hero-visual figcaption{margin-top:18px;color:#717171;font-size:11px;line-height:1.7}
.image-open{display:block;background:transparent;text-align:left;cursor:zoom-in}
.hero-image{position:relative;width:100%;border-radius:24px;overflow:hidden}
.hero-image img{display:block;width:100%;height:auto;aspect-ratio:8/5;object-fit:contain}
.image-expand{position:absolute;right:18px;bottom:18px;display:grid;place-items:center;width:32px;height:32px;border:1px solid #ffffff26;border-radius:50%;color:#ddd;background:#111a;font-size:22px;font-weight:300;line-height:1}
.story-section{padding-top:160px;padding-bottom:132px;max-width:900px}
h2{margin-top:20px;font-size:clamp(34px,4.5vw,62px);font-weight:550;line-height:1.18;letter-spacing:-.055em;text-wrap:balance}
.story-copy{max-width:760px;margin-top:32px;color:#929292;font-size:clamp(18px,2vw,25px);line-height:1.85;letter-spacing:-.02em}
.feature-section{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);align-items:center;gap:65px;padding-bottom:155px}
.feature-visual{overflow:hidden;border-radius:28px;background:#111}.feature-visual img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain}
.feature-copy h2{font-size:clamp(32px,3.5vw,48px)}
.feature-copy>p:not(.eyebrow){margin-top:25px;color:#929292;font-size:15px;line-height:1.9}
.feature-copy>.illustration-note{font-size:11px!important;color:#686868!important;margin-top:19px!important}
.gallery-section{padding-block:88px;background:#0d0d0d}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:35px}.section-heading h2{font-size:clamp(32px,4vw,50px)}
.gallery-hint{flex-shrink:0;color:#777;font-size:11px;line-height:1.7;padding-bottom:5px}
.gallery-shell{margin-top:44px}.gallery-track{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 40px)/3);gap:20px;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:#444 transparent;padding-bottom:16px;touch-action:pan-x pan-y pinch-zoom}
.gallery-track::-webkit-scrollbar{height:4px}.gallery-track::-webkit-scrollbar-thumb{background:#444;border-radius:4px}
.gallery-card{min-width:0;scroll-snap-align:start}.gallery-image{position:relative;display:block;overflow:hidden;border-radius:22px;background:#141414}.gallery-image img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain}
.gallery-caption{display:block;padding:20px 3px 8px;font-size:18px;font-weight:500;line-height:1.5}.caption-note{display:block;margin-top:6px;font-size:12px;font-weight:400;color:#858585}
.gallery-controls{display:flex;justify-content:flex-end;gap:10px;margin-top:16px}
.circle-button{display:inline-flex;justify-content:center;align-items:center;width:40px;height:40px;flex-shrink:0;border:1px solid #3a3a3a;border-radius:50%;background:transparent;font-size:20px;line-height:1;color:#ccc;cursor:pointer;transition:background .18s ease,color .18s ease}
.circle-button:hover{background:#242424;color:#fff}.circle-button:disabled{opacity:.25;cursor:default}
.platform-section{display:grid;grid-template-columns:1fr 1.1fr;gap:90px;padding-top:150px;padding-bottom:145px}.platform-copy>p{color:#929292;font-size:17px;line-height:1.9}
.intro-facts{display:grid;grid-template-columns:1fr 1fr;gap:26px 32px;margin-top:37px;padding-top:30px;border-top:1px solid #292929}
.intro-facts dt{font-size:11px;color:#727272;line-height:1.5}.intro-facts dd{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:16px;line-height:1.5;color:#ddd}
.status-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:#c9823b}.platform-copy>.text-link{margin-top:37px}
.closing-section{text-align:center;padding-top:90px;padding-bottom:100px;border-top:1px solid #252525}.closing-section h2{font-size:clamp(40px,5vw,68px)}.closing-section>p:not(.eyebrow){max-width:550px;margin:26px auto 0;font-size:15px;line-height:1.9;color:#888}.closing-section .text-link{margin-top:26px}
body[data-site-page="intro"] .site-footer{display:flex;justify-content:space-between;gap:22px;margin-top:0;padding-block:28px;border-top:1px solid #252525;font-size:10px;letter-spacing:.04em;color:#686868}
[data-reveal]{opacity:1;transform:none}.reveal-pending{opacity:0;transform:translateX(20px);transition:opacity .7s ease,transform .7s cubic-bezier(.16,1,.3,1)}.reveal-pending.is-visible{opacity:1;transform:none}
.image-dialog{width:min(1280px,calc(100vw - 40px));max-height:calc(100svh - 40px);margin:auto;padding:22px;border:1px solid #333;border-radius:20px;background:#101010;color:#eee;overflow:auto}
.image-dialog::backdrop{background:#000e;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.dialog-top,.dialog-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px}.dialog-top p{color:#aaa;font-size:12px;line-height:1.6}.dialog-image-wrap{display:flex;align-items:center;justify-content:center;margin-block:18px;overflow:hidden;min-height:100px}
.dialog-image{display:block;max-width:100%;max-height:calc(100svh - 235px);width:auto;height:auto;object-fit:contain;border-radius:8px}
.dialog-counter{font-size:11px;color:#858585;font-variant-numeric:tabular-nums}.dialog-bottom{justify-content:center}
@media(max-width:900px){.feature-section{gap:35px}.platform-section{gap:45px}.story-section{padding-top:115px}.gallery-hint{max-width:120px}}
@media(max-width:767px){html{scroll-padding-top:70px}.intro-wrap{width:calc(100% - 44px)}.product-nav{margin-top:20px}.product-nav-inner{min-height:54px;gap:15px}.product-nav-name{font-size:16px}.product-nav-links{gap:17px;font-size:10px}.intro-hero{padding-top:52px}.eyebrow{font-size:10px}.product-wordmark{margin-top:23px;font-size:22px}h1{font-size:clamp(46px,11.8vw,72px);margin-top:22px;letter-spacing:-.055em}.hero-description{font-size:15px;line-height:1.85;margin-top:25px}.hero-link{font-size:12px}.hero-visual{margin-top:35px}.hero-image{border-radius:17px}.hero-visual figcaption{font-size:10px;margin-inline:10px}.image-expand{width:28px;height:28px;right:12px;bottom:12px;font-size:20px}.story-section{padding-top:95px;padding-bottom:75px}h2{font-size:35px}.story-copy{font-size:18px;line-height:1.85;margin-top:27px}.feature-section{grid-template-columns:1fr;gap:32px;padding-bottom:90px}.feature-visual{border-radius:20px}.feature-copy{max-width:500px}.feature-copy h2{font-size:35px}.feature-copy>p:not(.eyebrow){font-size:14px;margin-top:22px}.gallery-section{padding-block:65px}.section-heading{display:block}.section-heading h2{font-size:33px}.gallery-hint{max-width:none;margin-top:20px;font-size:10px}.gallery-shell{width:100%;margin-top:28px}.gallery-track{grid-auto-columns:80%;gap:16px;padding-inline:22px;scroll-padding-inline:22px}.gallery-caption{font-size:17px;padding-top:17px}.caption-note{font-size:11px}.gallery-controls{margin-right:22px}.circle-button{width:44px;height:44px}.platform-section{grid-template-columns:1fr;gap:30px;padding-block:90px}.platform-copy>p{font-size:15px}.intro-facts{gap:25px;margin-top:28px}.intro-facts dd{font-size:15px}.platform-copy>.text-link{margin-top:30px}.closing-section{padding-block:70px}.closing-section h2{font-size:42px}.closing-section>p:not(.eyebrow){font-size:14px}body[data-site-page="intro"] .site-footer{font-size:9px;padding-block:25px}.image-dialog{width:calc(100vw - 22px);max-height:calc(100svh - 22px);padding:15px;border-radius:16px}.dialog-top{gap:12px}.dialog-top p{font-size:11px}.dialog-image{max-height:calc(100svh - 225px)}}
@media(max-width:360px){.product-nav-links{gap:12px}.product-nav-name{font-size:15px}.section-heading h2{font-size:29px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.reveal-pending{opacity:1;transform:none}}

/* The introduction opens with its own neutral-to-smile face. Homepage effects stay untouched. */
.intro-hero{min-height:calc(100svh - 90px);display:flex;flex-direction:column;align-items:center;justify-content:center;padding-block:18px 44px}
.intro-face{display:block;flex-shrink:0;width:min(720px,100%);aspect-ratio:20/9;background:transparent;cursor:pointer}
.intro-face canvas{display:block;width:100%;height:100%}
.intro-hero>.eyebrow{margin-top:8px}.intro-hero h1{font-size:clamp(48px,5.8vw,76px);line-height:1.12;margin-top:17px}.intro-hero .hero-description{font-size:16px;margin-top:22px}.intro-hero .hero-link{margin-top:22px}
.product-nav{margin-top:0}.feature-visual img,.gallery-image img{aspect-ratio:36/25;object-fit:cover}.feature-visual{border:1px solid #222}
@media(max-width:767px){.intro-hero{min-height:calc(100svh - 70px);padding-block:12px 40px}.intro-face{width:100%;max-width:500px}.intro-hero h1{font-size:clamp(43px,11vw,66px)}.intro-hero .hero-description{font-size:14px}.intro-hero>.eyebrow{margin-top:18px}.feature-visual img{aspect-ratio:36/25;object-fit:contain}.gallery-track{grid-auto-columns:88%}.gallery-image img{aspect-ratio:36/25;object-fit:contain}}

.feature-visual img,.gallery-image img{aspect-ratio:1099/662;object-fit:contain}