:root { --brand: #d74727; --brand-deep: #ad2f18; --gold: #e5a02a; --forest: #31594e; --ink: #20211f; --muted: #666761; --paper: #f4f3f0; --line: #d9d9d4; --dark: #1a1d1b; --header-height: 78px; --shell: 1240px; --ease: cubic-bezier(.22,1,.36,1); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 20px); scrollbar-gutter: stable; }
body { margin: 0; color: var(--ink); background: #fff; font-family: "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.7; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
html.qr-open { overflow: hidden; padding-right: var(--dialog-scrollbar,0px); }
html.qr-open .site-header { padding-right: var(--dialog-scrollbar,0px); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; letter-spacing: 0; }
button { cursor: pointer; }
[hidden] { display: none !important; }
h1, h2, h3, p, figure, blockquote, dl, dd { margin: 0; }
h1, h2, h3, blockquote { font-family: "Songti SC", "STSong", "Noto Serif SC", serif; font-weight: 600; letter-spacing: 0; text-wrap: balance; }
h2 { font-size: 48px; line-height: 1.3; }
p { text-wrap: pretty; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 6px; }
.section-shell { width: min(var(--shell), calc(100% - 80px)); margin-inline: auto; }
.section-index { margin-bottom: 20px; color: var(--brand); font-size: 14px; font-weight: 600; }
.skip-link { position: fixed; z-index: 200; left: 16px; top: 12px; padding: 10px 16px; color: #fff; background: var(--brand); transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.site-header { position: fixed; z-index: 100; inset: 0 0 auto; height: var(--header-height); color: #fff; border-bottom: 1px solid rgba(255,255,255,.2); transition: background-color .3s, color .3s; }
.site-header.scrolled { color: var(--ink); background: rgba(255,255,255,.98); border-bottom-color: var(--line); }
.header-inner { width: min(1400px, calc(100% - 64px)); height: 100%; display: flex; align-items: center; gap: 28px; margin-inline: auto; }
.brand { position: relative; width: 140px; height: 54px; flex: 0 0 auto; overflow: hidden; }
.brand-logo { position: absolute; top: 50%; left: 0; width: 138px; height: auto; transform: translateY(-50%); transition: opacity .25s; }
.brand-logo-color { opacity: 0; }
.site-header.scrolled .brand-logo-light { opacity: 0; }
.site-header.scrolled .brand-logo-color { opacity: 1; }
.desktop-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.desktop-nav a { position: relative; padding: 8px 0; font-size: 14px; font-weight: 600; white-space: nowrap; }
.desktop-nav a::after { content: ""; position: absolute; inset: auto 0 0; height: 2px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after, .desktop-nav a[aria-current]::after { transform: scaleX(1); }
.header-action { min-height: 42px; display: inline-flex; align-items: center; gap: 10px; padding: 0 18px; color: #fff; background: var(--brand); font-size: 14px; font-weight: 600; white-space: nowrap; transition: background .2s; }
.header-action:hover { background: var(--brand-deep); }
.header-action span, .text-link span { display: inline-block; transition: transform .3s var(--ease); }
.header-action:hover span { transform: translate(3px,-3px); }
.menu-button, .mobile-nav { display: none; }
.hero { position: relative; min-height: 100svh; overflow: hidden; color: #fff; background: var(--dark); }
.hero-image { position: absolute; inset: -5% 0; width: 100%; height: 110%; object-fit: cover; object-position: center; transform: translate3d(0,var(--hero-offset,0px),0) scale(1.02); animation: hero-arrive 2.2s var(--ease) backwards; }
.hero-shade { position: absolute; inset: 0; background: rgba(15,17,15,.34); }
.hero-inner { position: relative; z-index: 2; width: min(var(--shell), calc(100% - 80px)); min-height: 100svh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; margin-inline: auto; padding: 120px 0 56px; }
.hero h1 { font-size: 100px; line-height: 1.1; text-shadow: 0 2px 24px rgba(0,0,0,.16); animation: content-in 1s .08s var(--ease) backwards; }
.hero-tagline { margin-top: 24px; font-family: "Songti SC", "STSong", serif; font-size: 48px; font-weight: 600; line-height: 1.4; animation: content-in 1s .18s var(--ease) backwards; }
.hero-tagline span { display: inline-block; }
.hero-copy { margin-top: 22px; font-size: 18px; font-weight: 500; animation: content-in 1s .28s var(--ease) backwards; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 38px; animation: content-in 1s .38s var(--ease) backwards; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; padding: 0 26px; border: 1px solid transparent; font-weight: 600; transition: background .2s, transform .3s var(--ease); }
.button-primary { color: #fff; background: var(--brand); }
.button-primary:hover { background: var(--brand-deep); transform: translateY(-2px); }
.text-link { display: inline-flex; align-items: center; gap: 16px; min-height: 44px; padding: 8px 0; border-bottom: 1px solid currentColor; font-size: 15px; font-weight: 600; }
.text-link:hover span { transform: translateX(5px); }
.text-link-light { color: #fff; }
.scroll-cue { position: absolute; z-index: 3; left: max(40px, calc((100% - var(--shell))/2)); bottom: 30px; display: flex; align-items: center; gap: 18px; font-size: 12px; color: rgba(255,255,255,.9); }
.scroll-cue i { display: block; width: 60px; height: 1px; background: currentColor; transform-origin: left; animation: scroll-line 2s ease-in-out 2; }
@keyframes content-in { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes hero-arrive { from { scale: 1.035; } to { scale: 1; } }
@keyframes scroll-line { 0%,100% { transform: scaleX(.6); opacity: .5; } 50% { transform: scaleX(1); opacity: 1; } }
.brand-section { padding: 112px 0; }
.brand-intro { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: center; }
.brand-copy .lead { max-width: 430px; margin-top: 26px; color: var(--muted); font-size: 17px; line-height: 1.9; }
.brand-more { margin-top: 32px; color: var(--forest); }
.brand-visual { min-width: 0; }
.brand-image { overflow: hidden; }
.brand-image img { width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; transition: transform 1.2s var(--ease); }
.brand-visual figcaption { display: flex; justify-content: space-between; gap: 16px; margin-top: 14px; font-size: 14px; }
.brand-visual figcaption span { color: var(--muted); font-size: 12px; }
.ecosystem-section { padding: 88px 0 0; background: var(--paper); }
.ecosystem-heading { display: flex; justify-content: space-between; gap: 48px; align-items: end; padding-bottom: 48px; }
.ecosystem-heading h2 { font-size: 42px; }
.ecosystem-heading > p { color: var(--muted); font-size: 16px; }
.ecosystem-stage { display: grid; grid-template-columns: minmax(260px,30%) minmax(0,1fr); max-width: 1440px; margin-inline: auto; border-top: 1px solid var(--line); }
.ecosystem-tabs { display: grid; }
.ecosystem-tabs button { position: relative; display: grid; grid-template-columns: 30px 1fr; grid-template-rows: auto auto; gap: 4px 16px; align-content: center; padding: 30px 36px; text-align: left; color: var(--muted); border: 0; border-bottom: 1px solid var(--line); background: transparent; transition: background .4s, color .3s; }
.ecosystem-tabs button::after { content: ""; position: absolute; inset: 0 auto 0 0; width: 3px; background: var(--brand); transform: scaleY(0); transition: transform .4s var(--ease); }
.ecosystem-tabs button[aria-selected="true"] { color: var(--ink); background: #fff; }
.ecosystem-tabs button[aria-selected="true"]::after { transform: scaleY(1); }
.ecosystem-tabs button:last-child { border-bottom: 0; }
.ecosystem-tabs span { grid-row: 1/3; padding-top: 9px; color: var(--brand); font-size: 12px; }
.ecosystem-tabs strong { font-family: "Songti SC", "STSong", serif; font-size: 36px; font-weight: 600; }
.ecosystem-tabs small { font-size: 14px; }
.ecosystem-panels { min-width: 0; background: #fff; }
.ecosystem-panel { position: relative; height: 570px; display: grid; grid-template-rows: minmax(0,1fr) 108px; overflow: hidden; }
.ecosystem-panel > img { width: 100%; height: 100%; min-height: 0; object-fit: cover; }
#ecosystemPanel2 > img { object-position: center 25%; }
.panel-copy { display: flex; flex-direction: column; justify-content: center; gap: 8px; padding: 18px 32px; background: #fff; }
.panel-copy strong { font-size: 20px; font-weight: 600; }
.panel-copy span { color: var(--muted); font-size: 14px; }
.enablement-section { background: #fff; }
.enablement-inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: 96px; align-items: center; padding: 104px 0; }
.enablement-heading h2 { font-size: 40px; }
.enablement-heading > p:last-child { margin-top: 24px; color: var(--muted); font-size: 16px; }
.capability-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); margin: 0; padding: 0; list-style: none; gap: 0 32px; }
.capability-list li { min-height: 82px; display: grid; grid-template-columns: 32px 1fr; gap: 14px; align-items: center; border-bottom: 1px solid var(--line); }
.capability-list li:nth-child(-n+2) { border-top: 1px solid var(--line); }
.capability-list span { color: var(--brand); font-size: 12px; }
.capability-list strong { font-size: 18px; font-weight: 500; }
.trace-section { padding: 88px 0 56px; overflow: hidden; background: var(--paper); }
.trace-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; }
.trace-note { margin-top: 14px; color: var(--muted); font-size: 13px; }
.trace-controls { display: flex; align-items: center; gap: 8px; }
.trace-count { min-width: 66px; margin-right: 12px; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.trace-controls button { width: 46px; height: 46px; display: grid; place-items: center; color: var(--ink); background: transparent; border: 1px solid #b9bab5; transition: color .2s, background .2s, border-color .2s; }
.trace-controls button:hover { color: #fff; background: var(--forest); border-color: var(--forest); }
.trace-carousel { width: min(1440px,calc(100% - 80px)); margin: 44px auto 0; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scrollbar-width: none; }
.trace-carousel::-webkit-scrollbar { display: none; }
.trace-track { display: flex; gap: 24px; }
.trace-track::after { content: ""; flex: 0 0 calc(100% - min(66vw,860px) - 24px); }
.trace-slide { flex: 0 0 min(66vw,860px); min-width: 0; scroll-snap-align: start; }
.trace-image { height: 460px; overflow: hidden; background: #fff; }
.trace-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.trace-slide-products img { object-fit: contain; padding: 24px; }
.trace-slide figcaption { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 18px 0; }
.trace-slide figcaption strong { font-family: "Songti SC", "STSong", serif; font-size: 25px; font-weight: 600; }
.trace-slide figcaption small { font-size: 13px; color: var(--muted); }
.trace-progress { display: flex; gap: 10px; margin-top: 8px; }
.trace-progress button { position: relative; width: 48px; height: 44px; padding: 0; background: transparent; border: 0; }
.trace-progress button::before, .trace-progress button::after { content: ""; position: absolute; left: 0; right: 0; top: 21px; height: 2px; background: #bbbeb7; }
.trace-progress button::after { background: var(--brand); transform: scaleX(0); transform-origin: left; }
.trace-progress button[aria-current="true"]::after { transform: scaleX(1); }
.trace-progress.is-playing button[aria-current="true"]::after { animation: gallery-progress 6s linear; }
@keyframes gallery-progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.vision-section { background: var(--paper); }
.vision-copy { display: grid; grid-template-columns: 200px 1fr; gap: 32px; padding: 48px 0 80px; border-top: 1px solid var(--line); }
.vision-copy .section-index { padding-top: 10px; margin-bottom: 0; }
.vision-copy blockquote { max-width: 840px; font-size: 36px; line-height: 1.55; color: var(--forest); }
.cooperation-section { padding: 104px 0; }
.cooperation-heading { display: flex; justify-content: space-between; gap: 48px; align-items: end; }
.cooperation-heading > p { color: var(--muted); font-size: 16px; }
.partner-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); margin-top: 48px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.partner-card { min-width: 0; margin: 30px 0; padding: 4px 32px; border-right: 1px solid var(--line); }
.partner-card:first-child { padding-left: 0; }
.partner-card:last-child { padding-right: 0; border-right: 0; }
.partner-card h3 { font-size: 28px; }
.partner-card > p { margin-top: 10px; color: var(--muted); font-size: 14px; }
.partner-contact { display: grid; grid-template-columns: 132px minmax(0,1fr); gap: 20px; align-items: center; margin-top: 28px; }
.qr-trigger { --qr-size: 132px; display: block; width: var(--qr-size); height: var(--qr-size); flex: none; cursor: zoom-in; background: #fff; transition: box-shadow .2s; }
.qr-trigger:hover { box-shadow: 0 0 0 2px var(--brand); }
.qr-trigger img { width: var(--qr-size); height: var(--qr-size); object-fit: contain; }
.partner-contact span, .partner-contact strong, .partner-contact small { display: block; }
.partner-contact span, .partner-contact small { color: var(--muted); font-size: 12px; }
.partner-contact strong { margin: 4px 0; font-size: 20px; font-weight: 500; }
.news-section { display: grid; gap: 32px; width: min(var(--shell),calc(100% - 80px)); margin: 0 auto; padding: 0 0 104px; }
.news-visual { min-width: 0; }
.news-visual img { width: 100%; height: auto; }
.news-visual span { display: block; margin-top: 12px; font-size: 12px; color: var(--muted); }
.news-copy { display: grid; grid-template-columns: .8fr 1.2fr; grid-template-rows: min-content min-content 1fr; gap: 0 64px; align-items: start; }
.news-copy > .section-index, .news-copy > h2, .news-copy > .news-date { grid-column: 1; }
.news-copy > .news-list { grid-column: 2; grid-row: 1/4; }
.news-copy h2 { font-size: 38px; }
.news-date { margin: 16px 0 22px; color: var(--muted); font-size: 14px; }
.news-list { border-top: 1px solid var(--line); }
.news-list a { position: relative; display: grid; gap: 6px; padding: 20px 30px 20px 0; border-bottom: 1px solid var(--line); }
.news-list span { color: var(--muted); font-size: 12px; }
.news-meta { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 16px; color: var(--muted); font-size: 12px; }
.news-meta time { white-space: nowrap; font-variant-numeric: tabular-nums; }
.news-list strong { font-size: 15px; font-weight: 500; line-height: 1.7; transition: color .2s; }
.news-list i { position: absolute; right: 2px; top: 50%; font-style: normal; transition: transform .3s var(--ease); }
.news-list a:hover strong { color: var(--brand); }
.news-list a:hover i { transform: translate(3px,-3px); }
.site-footer { padding: 48px 0 20px; color: #c8ccc7; background: #191c19; }
.footer-inner, .footer-legal { width: min(var(--shell),calc(100% - 80px)); margin-inline: auto; }
.footer-inner { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,1fr) 264px; gap: 40px; align-items: start; }
.footer-heading { display: flex; align-items: center; gap: 20px; min-height: 44px; margin-bottom: 16px; }
.footer-heading, .footer-heading h2 { color: #f4f5f3; font-family: inherit; font-size: 15px; font-weight: 600; line-height: 1.6; text-wrap: wrap; }
.footer-heading img { width: 104px; height: auto; flex: none; }
.footer-about > p { max-width: 440px; color: #b1b7b1; font-size: 13px; line-height: 1.85; }
.footer-connect { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.footer-follow-body { display: grid; gap: 12px; align-content: start; }
.footer-follow .qr-trigger { --qr-size: 104px; }
.footer-follow-body span { color: #b1b7b1; font-size: 12px; }
.footer-qr-copy { display: grid; justify-items: start; }
.footer-download-link { display: inline-flex; gap: 8px; align-items: center; min-height: 44px; color: #f4f5f3; font-size: 13px; }
.footer-download-link span { color: inherit; }
.footer-download-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-contact dl { display: grid; gap: 12px; }
.footer-contact dl > div { display: grid; grid-template-columns: 52px minmax(0,1fr); gap: 12px; align-items: baseline; }
.footer-contact dt { color: #acb3ac; font-size: 12px; }
.footer-contact dd { color: #c8ccc7; font-size: 13px; overflow-wrap: anywhere; }
.footer-contact a { color: #e1e4e1; }
.footer-contact a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-legal { margin-top: 32px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.15); }
.footer-registry, .credential-queries { display: flex; flex-wrap: wrap; gap: 4px 24px; font-size: 12px; }
.footer-registry { margin-bottom: 16px; }
.footer-registry a, .credential-queries a { padding-block: 4px; }
.footer-registry a:hover, .credential-queries a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.footer-credentials { display: grid; grid-template-columns: 104px minmax(0,1fr); gap: 24px; align-items: baseline; color: #b1b7b1; font-size: 12px; }
.footer-credentials h2 { color: #dce0dc; font-family: inherit; font-size: 13px; line-height: 1.7; }
.credential-list { display: grid; grid-template-columns: repeat(2,max-content); gap: 8px 40px; }
.credential-list > div { display: flex; align-items: baseline; gap: 12px; }
.credential-list dt { flex: none; color: #a4aca4; }
.credential-list dd { color: #dce0dc; overflow-wrap: anywhere; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px; margin-top: 24px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.1); }
.footer-bottom > p { color: #a4aca4; font-size: 11px; }
.credential-queries { color: #acb3ac; }
.back-top { position: fixed; z-index: 80; right: 22px; bottom: 22px; width: 46px; height: 46px; color: #fff; background: var(--brand); border: 0; opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity .2s, transform .3s var(--ease), background .2s; }
.back-top.visible { opacity: 1; pointer-events: auto; transform: none; }
.back-top:hover { background: var(--brand-deep); }
.qr-dialog { position: fixed; inset: 0; width: min(448px,calc(100% - 32px)); max-width: none; max-height: calc(100vh - 32px); max-height: calc(100svh - 32px); margin: auto; padding: 24px; overflow-y: auto; color: var(--ink); background: #fff; border: 0; border-radius: 8px; box-shadow: 0 20px 70px rgba(0,0,0,.2); }
.qr-dialog:not([open]) { display: none; }
.qr-dialog[open] { display: grid; gap: 20px; }
.qr-dialog::backdrop { background: rgba(15,17,15,.65); }
.qr-dialog-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.qr-dialog-header > div { min-width: 0; }
.qr-dialog h2 { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 20px; line-height: 1.5; text-wrap: wrap; }
.qr-dialog-header p { margin-top: 4px; color: var(--muted); font-size: 13px; }
.dialog-icon { flex: 0 0 40px; width: 40px; height: 40px; display: grid; place-items: center; padding: 0; color: var(--ink); background: transparent; border: 1px solid var(--line); border-radius: 4px; }
.dialog-icon:hover { background: var(--paper); border-color: var(--muted); }
.qr-dialog-media { position: relative; width: min(320px,100%,calc(100svh - 228px)); min-width: 120px; max-width: 100%; aspect-ratio: 1; margin-inline: auto; background: #fff; }
.qr-dialog-media img { width: 100%; height: auto; object-fit: contain; -webkit-touch-callout: default; }
.qr-dialog-media p { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; color: var(--muted); background: var(--paper); font-size: 14px; }
.qr-dialog-actions { display: flex; justify-content: flex-end; gap: 8px; }
@media (hover: hover) and (pointer: fine) {
  .brand-visual:hover img, .trace-slide:hover img { transform: scale(1.035); }
  .ecosystem-tabs button:hover { color: var(--ink); background: #fff; }
}
@media (max-width: 1180px) {
  .desktop-nav { gap: 18px; }
  .desktop-nav a { font-size: 13px; }
  .header-action { display: none; }
  .brand-intro, .enablement-inner { gap: 48px; }
  .ecosystem-heading h2 { font-size: 34px; }
  .ecosystem-tabs button { padding: 26px; }
  .partner-card { padding-inline: 20px; }
  .partner-contact { grid-template-columns: 124px minmax(0,1fr); gap: 16px; }
  .partner-contact .qr-trigger { --qr-size: 124px; }
  .footer-inner { grid-template-columns: minmax(0,1fr) minmax(0,1fr) 252px; gap: 32px; }
  .credential-list { column-gap: 24px; }
}
@media (max-width: 900px) {
  :root { --header-height: 68px; }
  .section-shell, .news-section, .footer-inner, .footer-legal { width: calc(100% - 48px); }
  .footer-inner { grid-template-columns: minmax(0,1fr) 264px; gap: 24px 40px; }
  .footer-about { grid-column: 1/-1; }
  .footer-about > p { max-width: 620px; }
  .footer-credentials { grid-template-columns: 1fr; gap: 12px; }
  .credential-list { grid-template-columns: minmax(0,1fr); }
  .header-inner { width: calc(100% - 40px); }
  .desktop-nav { display: none; }
  .menu-button { width: 44px; height: 44px; display: grid; place-content: center; gap: 5px; margin-left: auto; padding: 0; color: currentColor; background: transparent; border: 0; }
  .menu-button span { width: 23px; height: 2px; background: currentColor; transition: transform .25s, opacity .2s; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .mobile-nav { position: fixed; inset: var(--header-height) 0 0; display: grid; align-content: start; padding: 20px 24px; overflow-y: auto; color: var(--ink); background: #fff; visibility: hidden; opacity: 0; pointer-events: none; transform: translateY(-12px); transition: opacity .25s, transform .3s var(--ease), visibility .3s; }
  .mobile-nav.open { visibility: visible; opacity: 1; pointer-events: auto; transform: none; }
  .mobile-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-weight: 500; }
  .site-header.menu-open { color: var(--ink); background: #fff; }
  .site-header.menu-open .brand-logo-light { opacity: 0; }
  .site-header.menu-open .brand-logo-color { opacity: 1; }
  .hero-inner { width: calc(100% - 64px); }
  .hero h1 { font-size: 80px; }
  .hero-tagline { font-size: 40px; }
  h2 { font-size: 40px; }
  .brand-intro { grid-template-columns: 1fr; gap: 40px; }
  .brand-copy .lead { max-width: 620px; }
  .brand-visual { max-width: 660px; width: 100%; margin-left: auto; }
  .ecosystem-heading { display: block; }
  .ecosystem-heading > p { margin-top: 20px; }
  .ecosystem-stage { grid-template-columns: 1fr; }
  .ecosystem-tabs { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .ecosystem-tabs button { grid-template-columns: 1fr; gap: 4px; padding: 24px; border-right: 1px solid var(--line); border-bottom: 0; }
  .ecosystem-tabs button::after { inset: auto 0 0; width: auto; height: 3px; transform: scaleX(0); }
  .ecosystem-tabs button[aria-selected="true"]::after { transform: scaleX(1); }
  .ecosystem-tabs button:last-child { border-right: 0; }
  .ecosystem-tabs span { grid-row: auto; padding: 0; }
  .ecosystem-tabs strong { font-size: 30px; }
  .ecosystem-tabs small { font-size: 13px; }
  .enablement-inner { grid-template-columns: 1fr; gap: 40px; }
  .trace-image { height: 370px; }
  .vision-copy { grid-template-columns: 1fr; gap: 20px; }
  .vision-copy blockquote { font-size: 32px; }
  .cooperation-heading { display: block; }
  .cooperation-heading > p { margin-top: 20px; }
  .partner-grid { grid-template-columns: 1fr; }
  .partner-card, .partner-card:first-child, .partner-card:last-child { display: grid; grid-template-columns: 1fr 250px; gap: 8px 28px; margin: 0; padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .partner-card:last-child { border-bottom: 0; }
  .partner-card h3 { align-self: end; }
  .partner-card > p { margin-top: 0; }
  .partner-contact { grid-row: 1/3; grid-column: 2; margin-top: 0; }
  .news-section { gap: 40px; grid-template-columns: 1fr; }
  .news-copy { gap: 0 32px; }
}
@media (max-width: 620px) {
  .section-shell, .news-section, .footer-inner, .footer-legal { width: calc(100% - 40px); }
  .brand { width: 112px; height: 48px; }
  .brand-logo { width: 110px; }
  h2 { font-size: 32px; }
  .section-index { margin-bottom: 16px; font-size: 13px; }
  .hero-inner { width: calc(100% - 48px); justify-content: flex-end; padding: 110px 0 96px; }
  .hero-image { object-position: 60% center; }
  .hero-shade { background: rgba(15,17,15,.43); }
  .hero h1 { font-size: 64px; }
  .hero-tagline { margin-top: 16px; font-size: 28px; }
  .hero-copy { margin-top: 16px; font-size: 16px; }
  .hero-actions { margin-top: 28px; gap: 24px; }
  .button { padding: 0 22px; font-size: 14px; }
  .text-link { font-size: 14px; gap: 12px; }
  .scroll-cue { left: 24px; bottom: 30px; }
  .brand-section { padding: 72px 0; }
  .brand-copy .lead { font-size: 16px; margin-top: 20px; }
  .brand-more { margin-top: 24px; }
  .brand-visual figcaption { font-size: 12px; gap: 10px; }
  .ecosystem-section { padding-top: 64px; }
  .ecosystem-heading { padding-bottom: 32px; }
  .ecosystem-heading h2 { font-size: 30px; }
  .ecosystem-tabs button { padding: 18px 12px; }
  .ecosystem-tabs strong { font-size: 26px; }
  .ecosystem-tabs small { display: none; }
  .ecosystem-panel { height: 456px; grid-template-rows: minmax(0,1fr) 116px; }
  #ecosystemPanel2 > img { object-fit: contain; object-position: center; }
  .panel-copy { padding: 16px 20px; gap: 6px; }
  .panel-copy strong { font-size: 18px; }
  .panel-copy span { font-size: 13px; }
  .enablement-inner { padding: 72px 0; gap: 32px; }
  .enablement-heading h2 { font-size: 32px; }
  .capability-list { gap: 0 20px; }
  .capability-list li { min-height: 72px; grid-template-columns: 24px minmax(0,1fr); gap: 6px; }
  .capability-list strong { font-size: 16px; }
  .trace-section { padding-top: 64px; padding-bottom: 32px; }
  .trace-heading { display: block; }
  .trace-controls { margin-top: 24px; }
  .trace-count { margin-right: auto; }
  .trace-carousel { width: calc(100% - 20px); margin: 28px 0 0 20px; }
  .trace-track { gap: 16px; }
  .trace-track::after { flex-basis: 16px; }
  .trace-slide { flex-basis: calc(100% - 32px); }
  .trace-image { height: 280px; }
  .trace-slide-products img { padding: 12px; }
  .trace-slide figcaption { align-items: start; flex-direction: column; gap: 4px; padding: 16px 0 4px; }
  .trace-slide figcaption strong { font-size: 23px; }
  .trace-progress { margin-top: 12px; }
  .vision-copy { padding: 32px 0 56px; }
  .vision-copy blockquote { font-size: 27px; line-height: 1.65; }
  .cooperation-section { padding: 72px 0; }
  .partner-grid { margin-top: 32px; }
  .partner-card, .partner-card:first-child, .partner-card:last-child { display: block; padding: 28px 0; }
  .partner-card h3 { font-size: 26px; }
  .partner-card > p { margin-top: 8px; font-size: 14px; }
  .partner-contact { grid-template-columns: 124px 1fr; margin-top: 20px; gap: 24px; }
  .partner-contact .qr-trigger { --qr-size: 124px; }
  .news-section { gap: 32px; padding-bottom: 64px; }
  .news-copy { display: block; }
  .news-copy h2 { font-size: 32px; }
  .news-list strong { font-size: 16px; }
  .site-footer { padding: 32px 0 20px; }
  .footer-inner { grid-template-columns: minmax(0,1fr); gap: 24px; }
  .footer-about { grid-column: auto; }
  .footer-heading { min-height: 24px; margin-bottom: 12px; }
  .footer-about .footer-heading { min-height: 44px; }
  .footer-connect { padding-top: 24px; border-top: 1px solid rgba(255,255,255,.15); }
  .credential-list { grid-template-columns: minmax(0,1fr); gap: 12px; }
  .credential-list > div { flex-wrap: wrap; gap: 2px 12px; }
  .footer-legal { margin-top: 24px; padding-top: 20px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; margin-top: 20px; padding-right: 48px; }
  .credential-queries { gap: 2px 16px; }
  .back-top { right: 12px; bottom: 12px; width: 44px; height: 44px; }
  .qr-dialog { padding: 20px; gap: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html, *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
  .hero-image { transform: none; }
}