:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  font-size: 100%;
  font-synthesis: none;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  color: #1d1d1f;
  background: #fff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --blue: #0071e3;
  --line: #dedee2;
  --page: 1280px;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 90px; }
body { margin: 0; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, summary:focus-visible, video:focus-visible { outline: 3px solid #0067cf; outline-offset: 6px; }
button { font: inherit; }
img, video { display: block; max-width: 100%; }
figure { margin: 0; }
p { margin: 0; line-height: 1.55; }
h1, h2, h3 { margin: 0; font-weight: 600; text-wrap: balance; }
h1, h2, h3, p { overflow-wrap: break-word; }
h2 { font-size: clamp(2.5rem, 5.2vw, 4.75rem); line-height: 1.04; letter-spacing: -.055em; }
h2 span { color: var(--muted); }
h3 { font-size: 1.45rem; line-height: 1.2; letter-spacing: -.025em; }
.page-width { width: min(100% - 96px, var(--page)); margin-inline: auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: fixed; top: -100px; left: 24px; z-index: 100; padding: 14px 20px; background: white; border-radius: 12px; }
.skip-link:focus { top: 12px; }
.navigation { position: sticky; top: 0; z-index: 30; background: rgba(255,255,255,.82); backdrop-filter: blur(22px) saturate(160%); -webkit-backdrop-filter: blur(22px) saturate(160%); }
.nav-content { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 16px; }
.wordmark { color: var(--text); display: inline-flex; align-items: center; gap: 10px; font-size: 1.1875rem; font-weight: 600; letter-spacing: -.03em; white-space: nowrap; }
.wordmark:hover { text-decoration: none; }
.wordmark img { border-radius: 8px; flex: 0 0 auto; }
.nav-links { display: flex; align-items: center; gap: 30px; font-size: .875rem; }
.nav-links a { color: #454549; }
.nav-links .nav-download { color: #fff; background: var(--text); padding: 8px 17px; border-radius: 30px; white-space: nowrap; }
.nav-download:hover { background: #333336; text-decoration: none; }
.home-language-bar { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-block: 13px; font-size: .8125rem; }
.home-language-bar nav { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; }
.home-language-bar nav a { color: var(--muted); padding-block: 6px; }
.home-language-bar nav a[aria-current="page"] { color: var(--text); font-weight: 600; text-decoration: underline; text-underline-offset: .3em; }
.home-language-bar .journal-link { white-space: nowrap; }
html[lang="zh-Hans"] h1 { letter-spacing: -.035em; line-height: 1.12; }
html[lang="zh-Hans"] h2 { letter-spacing: -.025em; line-height: 1.15; }
html[lang="zh-Hans"] .answer { line-height: 1.85; }
.eyebrow { color: var(--muted); font-size: 1.0625rem; line-height: 1.4; font-weight: 500; letter-spacing: -.015em; margin-bottom: 21px; }
.hero { text-align: center; padding-top: clamp(56px, 7.3vw, 112px); padding-bottom: 22px; }
.hero .eyebrow { color: #424247; margin-bottom: 22px; }
h1 { max-width: 1200px; margin-inline: auto; font-size: clamp(3.5rem, 8.5vw, 7.65rem); line-height: .99; letter-spacing: -.07em; }
h1 span { color: #76797f; }
.hero-description { margin: 30px auto 28px; font-size: clamp(1.125rem, 1.7vw, 1.45rem); line-height: 1.42; letter-spacing: -.024em; color: #5b5b63; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 30px; flex-wrap: wrap; }
.button, .download { display: inline-flex; align-items: center; justify-content: center; gap: 20px; padding: 14px 23px; border-radius: 40px; font-size: 1rem; line-height: 1.35; max-width: 100%; text-align: center; }
.primary, .download { background: var(--blue); color: white; }
.primary:hover, .download:hover { background: #0077ed; text-decoration: none; }
.button:active, .download:active, .nav-download:active { transform: scale(.97); }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-size: 1.0625rem; line-height: 1.5; }
.text-link span { flex: 0 0 auto; }
.hero-note { margin-top: 18px; color: #77777e; font-size: .8125rem; }

/* The static presentation is the baseline. Scroll composition is opt-in. */
.product-story { padding-block: 40px 80px; }
.scene-track { position: relative; }
.scene-sticky { position: relative; }
.scene-panels { width: min(100% - 96px, 1120px); margin-inline: auto; display: flex; flex-direction: column; gap: 90px; }
.product-panel { min-width: 0; position: relative; }
.panel-profiles { order: -1; }
.screen-glass { overflow: hidden; border-radius: 24px; padding: 6px; background: rgba(255,255,255,.72); border: 1px solid rgba(138,150,166,.22); box-shadow: 0 34px 80px -38px rgba(24,36,58,.32), inset 0 1px 0 rgba(255,255,255,.95); }
.screen-glass img { width: 100%; height: auto; border-radius: 18px; background: #f5f5f7; }
.screen-preview { position: relative; display: block; padding: 0; border: 0; width: 100%; background: transparent; border-radius: inherit; cursor: zoom-in; }
.screen-preview:focus-visible { outline-offset: -4px; }
.screen-expand { position: absolute; right: 14px; bottom: 14px; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,.9); color: #454549; font-size: 1.3rem; box-shadow: 0 3px 15px rgba(24,36,58,.12); opacity: 0; transition: opacity 140ms ease; }
.screen-preview:hover .screen-expand, .screen-preview:focus-visible .screen-expand { opacity: 1; }
@media (hover: none) { .screen-expand { opacity: 1; width: 32px; height: 32px; right: 8px; bottom: 8px; } }
.product-panel figcaption { text-align: center; padding: 28px 20px 0; }
.panel-category { display: block; color: #7b7b82; font-size: .8125rem; letter-spacing: .015em; margin-bottom: 8px; }
.product-panel h3 { font-size: 1.65rem; margin-bottom: 8px; }
.product-panel p { max-width: 36rem; margin-inline: auto; color: var(--muted); font-size: 1.0625rem; }
.scene-hint { display: none; }
.image-note { padding-top: 25px; text-align: center; font-size: .8125rem; color: #86868b; }
@media (min-width: 821px) and (min-height: 640px) and (prefers-reduced-motion: no-preference) {
  .scene-track.is-enhanced { height: 205vh; height: 205svh; }
  .is-enhanced .scene-sticky { position: sticky; top: 74px; height: calc(100vh - 74px); height: calc(100svh - 74px); min-height: 560px; overflow: clip; }
  .is-enhanced .scene-panels { position: absolute; inset: 0; width: 100%; perspective: 2000px; display: block; }
  .is-enhanced .product-panel { position: absolute; top: 45%; left: 50%; width: min(78vw, 1000px); margin: 0; transform-origin: center center; }
  .is-enhanced .panel-profiles { z-index: 3; }
  .is-enhanced .panel-settings { z-index: 1; }
  .is-enhanced .panel-notes { z-index: 2; }
  .is-enhanced.is-active .product-panel { will-change: transform, opacity; }
  .is-enhanced .screen-glass { border-radius: 26px; }
  .is-enhanced .scene-hint { position: absolute; display: flex; gap: 12px; align-items: center; justify-content: center; inset: auto 20px 32px; color: #86868b; font-size: .8125rem; }
  .is-enhanced .product-panel figcaption { padding-top: 26px; }
  .is-enhanced .panel-settings figcaption, .is-enhanced .panel-notes figcaption { visibility: hidden; }
  .is-enhanced .product-panel h3 { font-size: 2.15rem; }
  .is-enhanced .product-panel p { font-size: 1.2rem; max-width: 32rem; }
  .is-enhanced .panel-category { font-size: 1rem; }
}

.film-section { padding-top: 65px; padding-bottom: 132px; }
.section-heading { margin-bottom: 54px; }
.section-heading > p:last-child { margin-top: 25px; font-size: 1.2rem; color: var(--muted); letter-spacing: -.02em; }
.film-frame video { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #f1f2f4; border-radius: 30px; border: 1px solid #e5e7eb; }
.film-frame figcaption { text-align: center; padding-top: 18px; color: #86868b; font-size: .8125rem; }
.environment-section { padding-block: 0 125px; }
.environment-section .section-heading { margin-bottom: 66px; }
.environment-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 58px; }
.environment-index { display: block; border-top: 1px solid var(--line); padding-top: 18px; margin-bottom: 27px; font-size: .8125rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.environment-grid h3 { margin-bottom: 17px; font-size: 1.65rem; }
.environment-grid p { color: var(--muted); font-size: 1.0625rem; }
.environment-grid .text-link { margin-top: 23px; font-size: .9375rem; }
.environment-note { margin-top: 42px; max-width: 750px; color: var(--muted); font-size: .8125rem; }
.fingerprint-preview { margin: 64px auto 0; max-width: 620px; }
.fingerprint-preview figcaption { text-align: center; padding: 26px 16px 0; }
.fingerprint-preview h3 { margin-bottom: 9px; font-size: 1.5rem; }
.fingerprint-preview p { color: var(--muted); font-size: 1rem; }
.work-section { padding-block: 125px; background: #f5f5f7; }
.work-layout { display: grid; grid-template-columns: 1.08fr 1fr; gap: 110px; }
.work-heading { position: sticky; align-self: start; top: 120px; }
.work-copy { display: grid; gap: 45px; padding-top: 4px; }
.work-copy h3 { font-size: 1.4rem; margin-bottom: 13px; }
.work-copy p { font-size: 1.125rem; color: var(--muted); letter-spacing: -.012em; max-width: 44rem; }
.work-copy .text-link { justify-self: start; }
.download-section { padding-block: 130px; }
.download-panel { display: grid; grid-template-columns: 1.2fr 1fr; gap: 90px; padding: 64px; border-radius: 40px; background: linear-gradient(135deg, #f3f5f8, #fafbfc 70%); border: 1px solid #e5e8ed; box-shadow: inset 0 1px 0 white; }
.download-icon { margin-bottom: 25px; border-radius: 20px; }
.download-copy .eyebrow { margin-bottom: 18px; }
.download-copy h2 { font-size: clamp(2.5rem, 4.2vw, 3.7rem); }
.download-row { display: flex; flex-direction: column; align-items: flex-start; gap: 15px; margin-top: 32px; }
.download-access { max-width: 30rem; font-size: .875rem; line-height: 1.5; color: var(--text); }
.download-unavailable { display: inline-block; padding: 14px 22px; font-size: 1rem; color: #606069; background: #e6e9ef; border-radius: 40px; }
.release-meta { color: var(--muted); font-size: .875rem; line-height: 1.55; max-width: 30rem; }
.requirements { font-size: .8125rem; color: var(--muted); margin-top: 18px; line-height: 1.65; }
.requirements a { display: block; margin-top: 4px; }
.installation { align-self: center; }
.installation h3 { font-size: 1.4rem; margin-bottom: 28px; }
.installation ol { list-style: none; counter-reset: installation; padding: 0; margin: 0 0 30px; }
.installation li { counter-increment: installation; padding-left: 35px; position: relative; margin-bottom: 27px; }
.installation li::before { content: counter(installation); position: absolute; left: 0; top: 0; width: 24px; height: 24px; border-radius: 50%; border: 1px solid #cbd0da; color: #717781; text-align: center; line-height: 23px; font-size: .8125rem; }
.installation strong { font-size: 1.0625rem; font-weight: 500; line-height: 1.4; }
.installation li p { font-size: 1rem; color: var(--muted); margin-top: 7px; }
.installation .secondary { color: var(--muted); font-size: .9375rem; margin-bottom: 19px; }
.installation .text-link { font-size: .9375rem; }
.faq-section { display: grid; grid-template-columns: 1fr 1.5fr; gap: 100px; padding-bottom: 135px; }
.faq-heading h2 { font-size: clamp(2.5rem, 4vw, 3.5rem); }
.faq-list { min-width: 0; }
details { border-bottom: 1px solid var(--line); padding-block: 24px; scroll-margin-top: 100px; }
details:first-child { border-top: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; position: relative; padding-right: 34px; font-size: 1.0625rem; font-weight: 500; line-height: 1.4; letter-spacing: -.015em; overflow-wrap: anywhere; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: -2px; font-size: 1.5rem; font-weight: 300; color: #86868b; }
details[open] summary::after { content: "−"; }
.answer { padding-top: 20px; font-size: 1rem; line-height: 1.6; color: var(--muted); overflow-wrap: anywhere; }
.answer p + p { margin-top: 15px; }
.answer ol { padding-left: 20px; line-height: 1.65; }
.answer li { margin-bottom: 10px; }
.answer code { display: block; margin-top: 18px; padding: 14px 18px; font: .8125rem/1.7 ui-monospace, SFMono-Regular, Menlo, monospace; overflow-wrap: anywhere; background: #f5f5f7; border-radius: 12px; }
footer { background: #f5f5f7; }
.footer-content { min-height: 110px; display: flex; align-items: center; gap: 30px; padding-block: 28px; color: var(--muted); font-size: .875rem; }
.footer-content .wordmark { font-size: 1rem; }
.footer-content > a:last-child { margin-left: auto; color: var(--muted); }

.product-viewer { position: fixed; inset: 0; padding: 22px 32px; width: 100%; height: 100%; height: 100svh; max-width: none; max-height: none; margin: 0; border: 0; background: #f5f6f8; color: var(--text); overscroll-behavior: contain; }
.product-viewer::backdrop { background: rgba(25,30,40,.35); }
.product-viewer[open] { display: flex; flex-direction: column; align-items: stretch; }
body:has(.product-viewer[open]) { overflow: hidden; }
.viewer-toolbar { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1600px; margin-inline: auto; gap: 20px; flex-shrink: 0; }
.viewer-toolbar h2 { font-size: 1.25rem; line-height: 1.25; letter-spacing: -.025em; }
.viewer-icon-button { width: 48px; height: 48px; display: inline-grid; place-items: center; flex: 0 0 auto; border: 1px solid #dddfe5; background: rgba(255,255,255,.9); border-radius: 50%; color: #454549; font-size: 1.45rem; line-height: 1; cursor: pointer; }
.viewer-icon-button:hover { background: #fff; border-color: #c1c5cd; }
.viewer-icon-button:active { background: #e9ecf1; }
.viewer-figure { min-height: 0; flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 17px; padding-block: 20px; }
.viewer-figure img { min-height: 0; flex: 0 1 auto; width: auto; height: auto; max-width: 100%; max-height: calc(100svh - 230px); border-radius: 16px; box-shadow: 0 15px 50px -22px rgba(24,36,58,.32); object-fit: contain; }
.viewer-figure figcaption { flex-shrink: 0; max-width: 48rem; text-align: center; color: var(--muted); font-size: 1rem; line-height: 1.45; }
.viewer-navigation { display: flex; align-items: center; justify-content: center; gap: 25px; flex-shrink: 0; }
.viewer-navigation > span { min-width: 3rem; text-align: center; font-size: .875rem; font-variant-numeric: tabular-nums; color: var(--muted); }

@media (max-width: 1100px) {
  .page-width { width: calc(100% - 64px); }
  .work-layout { gap: 60px; }
  .download-panel { padding: 44px; gap: 45px; }
  .faq-section { gap: 60px; }
}
@media (max-width: 820px) {
  .hero { padding-top: 65px; padding-bottom: 40px; }
  h1 { font-size: clamp(3.4rem, 8.9vw, 5rem); }
  .hero-description { font-size: 1.2rem; }
  .product-story { padding-block: 20px 40px; }
  .scene-panels { width: calc(100% - 64px); gap: 75px; }
  .screen-glass { border-radius: 18px; padding: 4px; }
  .screen-glass img { border-radius: 14px; }
  .product-panel figcaption { padding-top: 25px; }
  .product-panel h3 { font-size: 1.7rem; }
  .film-section { padding-block: 55px 90px; }
  .environment-section { padding-bottom: 85px; }
  .environment-section .section-heading { margin-bottom: 40px; }
  .environment-grid { grid-template-columns: 1fr; gap: 33px; }
  .environment-index { margin-bottom: 17px; }
  .environment-grid h3 { margin-bottom: 12px; }
  .environment-grid .text-link { margin-top: 16px; }
  .work-section { padding-block: 85px; }
  .work-layout { grid-template-columns: 1fr; gap: 45px; }
  .work-heading { position: static; }
  .work-copy { gap: 33px; }
  .work-copy p { font-size: 1.0625rem; }
  .download-section { padding-block: 85px; }
  .download-panel { grid-template-columns: 1fr; gap: 45px; padding: 40px; }
  .installation { padding-top: 36px; border-top: 1px solid #d9dde5; }
  .faq-section { grid-template-columns: 1fr; gap: 40px; padding-bottom: 90px; }
  .film-frame video { border-radius: 22px; }
}
@media (max-width: 540px) {
  .page-width { width: calc(100% - 40px); }
  .nav-content { min-height: 66px; gap: 12px; padding-block: 14px; flex-wrap: wrap; }
  .wordmark { font-size: 1.02rem; gap: 7px; }
  .wordmark img { width: 26px; height: 26px; }
  .nav-links { gap: 15px; font-size: .875rem; flex-wrap: wrap; }
  .nav-links > a:first-child, .nav-links > a:nth-child(2) { display: none; }
  .nav-links .nav-download { padding: 7px 13px; }
  .home-language-bar { gap: 12px; padding-block: 8px; font-size: .75rem; }
  .home-language-bar nav { gap: 14px; }
  .hero { padding-top: 50px; }
  .eyebrow { font-size: 1rem; }
  h1 { font-size: clamp(3rem, 11.9vw, 4rem); letter-spacing: -.065em; }
  .hero-description { margin-top: 25px; font-size: 1.125rem; }
  .hero-actions { gap: 20px; flex-direction: column; }
  .hero-note { margin-top: 20px; }
  h2 { font-size: 2.6rem; }
  .scene-panels { width: calc(100% - 32px); gap: 60px; }
  .screen-glass { border-radius: 12px; padding: 3px; }
  .screen-glass img { border-radius: 9px; }
  .product-panel figcaption { padding: 23px 10px 0; }
  .product-panel p { font-size: 1rem; max-width: 22rem; }
  .section-heading { margin-bottom: 33px; }
  .section-heading > p:last-child { font-size: 1.0625rem; margin-top: 20px; }
  .film-frame video { border-radius: 16px; }
  .film-frame figcaption { font-size: .8125rem; }
  .environment-section { padding-bottom: 64px; }
  .environment-grid h3 { font-size: 1.4rem; }
  .environment-grid p { font-size: 1rem; }
  .environment-note { margin-top: 30px; }
  .product-viewer { padding: 16px; }
  .viewer-toolbar h2 { font-size: 1.125rem; }
  .viewer-figure { gap: 22px; }
  .viewer-figure img { border-radius: 8px; }
  .viewer-figure figcaption { font-size: .9375rem; }
  .work-section { padding-block: 64px; }
  .download-panel { padding: 30px 24px; border-radius: 26px; }
  .download-icon { width: 64px; height: 64px; border-radius: 16px; }
  .download-copy h2 { font-size: 2.6rem; }
  .download-unavailable { padding-inline: 17px; }
  .installation h3 { font-size: 1.3rem; }
  summary { font-size: 1rem; }
  details { padding-block: 21px; }
  .footer-content { gap: 15px; flex-wrap: wrap; }
  .footer-content span { flex-basis: calc(100% - 120px); }
  .footer-content > a:last-child { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button:active, .download:active, .nav-download:active { transform: none; }
  .screen-expand { transition: none; }
}
@media (prefers-reduced-transparency: reduce) {
  .navigation { background: #fff; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .screen-glass { background: #fff; }
}
@media (prefers-contrast: more) {
  :root { --muted: #49494f; --line: #787880; }
  .navigation, .screen-glass { background: #fff; border: 1px solid #787880; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .hero-note, .panel-category, .image-note, .film-frame figcaption { color: #49494f; }
}