:root {
  color-scheme: dark;
  --ink: #f3f4ff;
  --muted: #a7a9bd;
  --dim: #7c7f98;
  --night: #070815;
  --night-soft: #0d0f20;
  --line: rgba(255, 255, 255, 0.13);
  --line-strong: rgba(255, 255, 255, 0.24);
  --violet: #8d7dff;
  --cyan: #61d7ff;
  --accent: #a291ff;
  --page: min(1240px, calc(100vw - 64px));
  --ease: cubic-bezier(.2, .7, .2, 1);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; background: var(--night); }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--night); overflow-x: hidden; }
body::selection { color: #fff; background: #6758d6; }
a { color: inherit; }
button, summary { font: inherit; }
img { max-width: 100%; }

.skip-link { position: fixed; z-index: 100; left: 1rem; top: -5rem; padding: .75rem 1rem; color: #070815; background: #fff; border-radius: .4rem; }
.skip-link:focus { top: 1rem; }

.site-header {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  height: 76px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  padding: 0 max(24px, calc((100vw - 1460px) / 2));
  border-bottom: 1px solid transparent;
  transition: background .35s ease, border-color .35s ease, backdrop-filter .35s ease;
}
.site-header.is-scrolled, .site-header--compact { background: rgba(7, 8, 21, .76); border-color: var(--line); backdrop-filter: blur(20px) saturate(140%); }
.wordmark { justify-self: start; display: inline-flex; align-items: center; gap: .7rem; color: #fff; font-size: .92rem; font-weight: 650; letter-spacing: -.01em; text-decoration: none; }
.wordmark__mark { display: inline-grid; place-items: center; width: 27px; aspect-ratio: 1; border: 1px solid rgba(255, 255, 255, .35); border-radius: 7px; color: #d8d2ff; background: linear-gradient(145deg, rgba(141,125,255,.26), rgba(97,215,255,.07)); font-size: .78rem; }
.site-nav { display: flex; gap: 2.1rem; color: #c7c8d8; font-size: .76rem; font-weight: 550; letter-spacing: .02em; }
.site-nav a { text-decoration: none; transition: color .2s ease; }
.site-nav a:hover { color: #fff; }
.language-menu { position: relative; justify-self: end; }
.language-menu summary { display: flex; align-items: center; gap: .5rem; list-style: none; cursor: pointer; color: #c7c8d8; font-size: .76rem; }
.language-menu summary::-webkit-details-marker { display: none; }
.language-menu summary::after { content: "⌄"; font-size: .8rem; transition: transform .2s ease; }
.language-menu[open] summary::after { transform: rotate(180deg); }
.language-menu__panel { position: absolute; right: 0; top: calc(100% + 1rem); width: 190px; padding: .55rem; background: rgba(17, 19, 39, .98); border: 1px solid var(--line-strong); border-radius: .75rem; box-shadow: 0 22px 65px rgba(0,0,0,.42); }
.language-menu__panel a { display: block; padding: .58rem .7rem; border-radius: .45rem; color: #c6c8da; font-size: .78rem; text-decoration: none; }
.language-menu__panel a:hover, .language-menu__panel a[aria-current="true"] { color: #fff; background: rgba(255,255,255,.07); }

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(320px, .75fr) minmax(620px, 1.25fr);
  align-items: center;
  gap: clamp(2rem, 4vw, 6rem);
  padding: 110px max(24px, calc((100vw - 1460px) / 2)) 68px;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 34%, rgba(84, 73, 194, .18), transparent 34%),
    linear-gradient(180deg, #080916 0%, #070815 100%);
}
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0; opacity: .5; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(to bottom, #000, transparent 88%); }
.hero-glow { position: absolute; z-index: -1; width: 46vw; aspect-ratio: 1; left: 54%; top: 49%; translate: -50% -50%; border-radius: 50%; background: rgba(117, 96, 255, .2); filter: blur(110px); }
.hero-copy { position: relative; z-index: 2; min-width: 0; max-width: 620px; align-self: center; }
.eyebrow { margin: 0 0 1.6rem; color: #a9a3d5; font-size: .68rem; font-weight: 680; letter-spacing: .14em; line-height: 1.4; text-transform: uppercase; }
.hero-title { margin: 0; font-size: clamp(4.8rem, 8.2vw, 9.5rem); font-weight: 690; letter-spacing: -.075em; line-height: .74; }
.hero-title span { display: block; }
.hero-title span:last-child { color: transparent; -webkit-text-stroke: 1px rgba(236, 234, 255, .64); }
.hero-lead { margin: 2.7rem 0 .7rem; max-width: 520px; font-size: clamp(1.35rem, 2vw, 2rem); font-weight: 560; letter-spacing: -.035em; line-height: 1.18; }
.hero-body { margin: 0; max-width: 510px; color: var(--muted); font-size: .96rem; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 1.5rem; margin-top: 2rem; }
.button { min-height: 48px; display: inline-flex; justify-content: center; align-items: center; padding: .8rem 1.15rem; border-radius: .55rem; border: 1px solid transparent; font-size: .8rem; font-weight: 680; text-decoration: none; cursor: pointer; transition: translate .25s var(--ease), border-color .25s ease, background .25s ease, box-shadow .25s ease; }
.button:hover:not(:disabled) { translate: 0 -2px; }
.button--primary { color: #090916; background: #f2f1ff; box-shadow: 0 10px 35px rgba(134, 116, 255, .16); }
.button--primary:hover { background: #fff; box-shadow: 0 15px 42px rgba(134, 116, 255, .26); }
.text-link { display: inline-flex; gap: .55rem; align-items: center; color: #d5d3e6; font-size: .78rem; text-decoration: none; }
.text-link span { color: var(--cyan); }
.hero-status { display: flex; align-items: center; gap: .55rem; margin: 1.6rem 0 0; color: #8c8fa7; font-size: .7rem; }
.hero-status span { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 13px var(--cyan); }
.hero-visual { --tilt-x: 0deg; --tilt-y: 0deg; position: relative; z-index: 1; width: min(940px, 100%); margin: 0; transform: perspective(1500px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)); transform-origin: 60% 55%; transition: transform .35s var(--ease); }
.hero-visual img { position: relative; z-index: 1; display: block; width: 100%; height: auto; border: 1px solid rgba(255,255,255,.16); border-radius: 15px; box-shadow: 0 60px 130px rgba(0,0,0,.68), 0 0 0 1px rgba(124,111,255,.08); }
.hero-visual figcaption { margin-top: .8rem; color: #7c7f98; font-size: .66rem; letter-spacing: .04em; text-align: right; }
.screen-halo { position: absolute; inset: 8% 10%; background: rgba(108, 88, 255, .45); filter: blur(80px); }
.hero-disclaimer { position: absolute; z-index: 3; left: max(24px, calc((100vw - 1460px) / 2)); right: max(24px, calc((100vw - 1460px) / 2)); bottom: 18px; margin: 0; color: #80839a; font-size: .56rem; line-height: 1.45; }

.section { width: var(--page); margin: 0 auto; padding: clamp(7rem, 12vw, 12rem) 0; }
.section-intro { display: grid; grid-template-columns: 1fr 1.9fr; column-gap: 5vw; align-items: start; }
.section-intro .eyebrow { grid-column: 1; }
.section-intro h2 { grid-column: 2; grid-row: 1 / span 2; margin: 0; max-width: 850px; font-size: clamp(3rem, 6vw, 6.5rem); font-weight: 620; letter-spacing: -.065em; line-height: .95; }
.section-intro > p:last-child { grid-column: 2; max-width: 600px; margin: 2rem 0 0; color: var(--muted); font-size: 1rem; line-height: 1.7; }
.platform-section { border-bottom: 1px solid var(--line); }
.platform-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: clamp(4.5rem, 8vw, 7.5rem); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.platform-card { min-width: 0; min-height: 280px; display: flex; flex-direction: column; padding: 1.8rem 1.5rem 1.5rem; border-left: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.018), transparent); }
.platform-card:first-child { border-left: 0; }
.platform-card--compatibility { background: linear-gradient(180deg, rgba(141,125,255,.08), rgba(255,255,255,.012)); }
.platform-card__heading { display: grid; gap: 1rem; }
.platform-card__heading span { color: var(--cyan); font-size: .64rem; font-weight: 680; letter-spacing: .13em; text-transform: uppercase; }
.platform-card__heading strong { min-height: 3.2rem; color: #ececf5; font-size: clamp(1.15rem, 1.8vw, 1.55rem); font-weight: 570; letter-spacing: -.035em; line-height: 1.08; }
.platform-card > p { margin: 1.7rem 0 2.8rem; color: var(--muted); font-size: .78rem; line-height: 1.55; }
.platform-card__footer { display: grid; gap: .85rem; margin-top: auto; }
.platform-card__footer > span { color: var(--dim); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; }
.platform-card__footer button { min-height: 42px; padding: .65rem .8rem; color: #787b90; border: 1px solid var(--line); border-radius: .45rem; background: rgba(255,255,255,.025); font-size: .72rem; }
.platform-card__footer button:not(:disabled) { color: #080916; border-color: transparent; background: #f2f1ff; cursor: pointer; }
.windows-visual { position: relative; margin: clamp(5rem, 9vw, 8rem) 0 0; }
.windows-visual > div { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: .9rem; color: var(--dim); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; }
.windows-visual > div strong { color: #a9abc0; font-weight: 560; }
.windows-visual img { display: block; width: 100%; height: auto; border: 1px solid rgba(255,255,255,.15); border-radius: 14px; box-shadow: 0 45px 110px rgba(0,0,0,.55); }
.windows-visual figcaption { margin-top: .8rem; color: #7c7f98; font-size: .66rem; letter-spacing: .025em; text-align: right; }
.download-gate-note { max-width: 850px; margin: 2rem 0 0 auto; color: #777a91; font-size: .7rem; line-height: 1.65; text-align: right; }
.proof-list { margin: clamp(5rem, 9vw, 9rem) 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.proof-list li { display: grid; grid-template-columns: 1fr 1.35fr; align-items: start; gap: 3rem; min-height: 180px; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.proof-number, .open-details article > span { color: var(--dim); font-size: .66rem; letter-spacing: .12em; }
.proof-list li > div { display: grid; grid-template-columns: .85fr 1.15fr; gap: 3rem; }
.proof-list h3 { margin: 0; font-size: 1.35rem; font-weight: 560; letter-spacing: -.025em; }
.proof-list p { margin: 0; max-width: 460px; color: var(--muted); font-size: .9rem; line-height: 1.65; }
.spec-line { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 4rem 0 0; }
.spec-line > div { min-height: 104px; padding: 0 2rem; border-left: 1px solid var(--line); }
.spec-line > div:first-child { padding-left: 0; border-left: 0; }
.spec-line dt { margin-bottom: .8rem; color: var(--dim); font-size: .62rem; letter-spacing: .11em; text-transform: uppercase; }
.spec-line dd { margin: 0; color: #dadbe8; font-size: .82rem; line-height: 1.5; }

.open-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(4rem, 9vw, 9rem); align-items: start; }
.open-sticky { position: sticky; top: 130px; }
.open-sticky h2, .support-copy h2, .final-section h2 { margin: 0; font-size: clamp(3rem, 5vw, 5.7rem); font-weight: 610; letter-spacing: -.06em; line-height: .98; }
.open-sticky > p:not(.eyebrow), .support-copy > p:not(.eyebrow), .final-section > div > p:not(.eyebrow) { max-width: 570px; margin: 2rem 0 0; color: var(--muted); line-height: 1.7; }
.source-links { display: flex; flex-wrap: wrap; gap: 1.4rem; margin-top: 2.2rem; }
.source-links a { color: #d7d5e8; font-size: .76rem; text-underline-offset: .35rem; }
.source-links span { color: var(--cyan); }
.open-details { border-top: 1px solid var(--line); }
.open-details article { min-height: 235px; padding: 2rem 0 2.5rem; border-bottom: 1px solid var(--line); }
.open-details article h3 { margin: 3.3rem 0 .9rem; font-size: 1.5rem; font-weight: 560; letter-spacing: -.03em; }
.open-details article p { margin: 0; max-width: 540px; color: var(--muted); font-size: .9rem; line-height: 1.7; }
.legal-callout { margin: 2.2rem 0 0; color: #7c7f98; font-size: .68rem; line-height: 1.6; }

.support-section { position: relative; min-height: 720px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 8vw; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.support-copy, .support-action { position: relative; z-index: 2; }
.support-action { max-width: 460px; }
.button--support { width: 100%; min-height: 62px; color: #080916; background: linear-gradient(105deg, #e8e5ff, #b8efff); }
.button--support:disabled { color: #85879b; border-color: var(--line); background: rgba(255,255,255,.04); cursor: not-allowed; box-shadow: none; }
.support-status { margin: 1rem 0 0; color: #85889f; font-size: .7rem; text-align: center; }
.support-fine { margin: 2.3rem 0 0; color: #7c7f98; font-size: .69rem; line-height: 1.65; }
.support-orbit { position: absolute; width: 620px; aspect-ratio: 1; left: 18%; top: 50%; translate: -50% -50%; border: 1px solid rgba(144,126,255,.16); border-radius: 50%; }
.support-orbit::before, .support-orbit::after { content: ""; position: absolute; inset: 14%; border: 1px solid rgba(93,216,255,.1); border-radius: 50%; }
.support-orbit::after { inset: 35%; background: radial-gradient(circle, rgba(119,96,255,.19), transparent 70%); }
.support-orbit span { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 20px var(--cyan); }
.support-orbit span:first-child { left: 8%; top: 30%; }
.support-orbit span:last-child { right: 12%; bottom: 24%; background: var(--violet); box-shadow: 0 0 20px var(--violet); }

.final-section { min-height: 720px; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 5rem; }
.button--ghost { margin-top: 2.3rem; color: #e4e3ef; border-color: var(--line-strong); background: rgba(255,255,255,.025); }
.button--ghost:hover { border-color: rgba(255,255,255,.45); background: rgba(255,255,255,.06); }
.final-glyph { justify-self: end; display: grid; place-items: center; width: min(350px, 32vw); aspect-ratio: 1; color: rgba(226,222,255,.85); border: 1px solid rgba(255,255,255,.16); border-radius: 29%; background: radial-gradient(circle at 45% 40%, rgba(138,117,255,.2), transparent 60%); font-size: clamp(6rem, 13vw, 12rem); font-weight: 150; box-shadow: inset 0 0 80px rgba(107,86,255,.06); }

.site-footer { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; width: var(--page); margin: 0 auto; padding: 3rem 0; border-top: 1px solid var(--line); }
.footer-brand { display: flex; gap: 1rem; align-items: flex-start; }
.footer-brand strong { font-size: .82rem; }
.footer-brand p { margin: .35rem 0 0; color: #777a91; font-size: .7rem; }
.site-footer nav { justify-self: end; display: flex; gap: 1.5rem; }
.site-footer nav a { color: #aaacbd; font-size: .7rem; text-underline-offset: .25rem; }
.footer-legal { grid-column: 1 / -1; max-width: 980px; margin: .8rem 0 0; color: #7c7f98; font-size: .61rem; line-height: 1.6; }
.footer-meta { grid-column: 1 / -1; margin: 0; color: #7c7f98; font-size: .62rem; }
.footer-meta a { color: #777a91; }

.document-page { background: linear-gradient(145deg, #090a19, var(--night) 42%); }
.document-main { width: min(1020px, calc(100vw - 48px)); margin: 0 auto; padding: 170px 0 9rem; }
.document-hero { max-width: 790px; padding-bottom: 6rem; }
.document-hero h1 { margin: 0; font-size: clamp(4rem, 9vw, 8rem); font-weight: 630; letter-spacing: -.075em; line-height: .9; }
.document-hero > p:last-child { max-width: 600px; margin: 2rem 0 0; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }
.document-list { border-top: 1px solid var(--line); }
.document-list article { display: grid; grid-template-columns: 80px 1fr; gap: 2rem; padding: 2.5rem 0; border-bottom: 1px solid var(--line); }
.document-list article > span { color: var(--dim); font-size: .65rem; letter-spacing: .1em; }
.document-list h2 { margin: 0 0 .8rem; font-size: 1.35rem; font-weight: 560; letter-spacing: -.025em; }
.document-list p { max-width: 720px; margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.75; }
.document-contact { margin-top: 4rem; padding: 2rem 0; }
.document-contact p { max-width: 780px; color: #7c7f98; font-size: .7rem; line-height: 1.7; }
.document-contact a { display: inline-block; margin-top: .5rem; color: #d6d5e2; font-size: .8rem; }

.js .hero-stage { opacity: 0; transform: translateY(18px); }
.js .hero-stage--visual { transform: translateY(35px) scale(.985); }
.is-ready .hero-stage { opacity: 1; transform: none; transition: opacity .8s var(--ease), transform .9s var(--ease); }
.is-ready .hero-stage--1 { transition-delay: .05s; }
.is-ready .hero-stage--2 { transition-delay: .14s; }
.is-ready .hero-stage--3 { transition-delay: .26s; }
.is-ready .hero-stage--4 { transition-delay: .38s; }
.is-ready .hero-stage--visual { transform: perspective(1500px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)); transition-delay: .2s; }
.js [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .8s var(--ease); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }

@media (max-width: 1100px) {
  :root { --page: min(100% - 48px, 980px); }
  .hero { grid-template-columns: 1fr; align-content: start; padding-top: 130px; }
  .hero-copy { max-width: 720px; }
  .hero-title { font-size: clamp(5rem, 15vw, 9rem); }
  .hero-visual { justify-self: end; width: min(880px, 92vw); margin-top: -1rem; }
  .hero-disclaimer { position: static; grid-column: 1; margin-top: 1rem; }
  .section-intro { grid-template-columns: 1fr; }
  .section-intro .eyebrow, .section-intro h2, .section-intro > p:last-child { grid-column: 1; grid-row: auto; }
  .section-intro h2 { max-width: 900px; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .platform-card:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .platform-card:nth-child(4) { border-top: 1px solid var(--line); }
  .proof-list li { grid-template-columns: 80px 1fr; }
}

@media (max-width: 760px) {
  :root { --page: calc(100% - 36px); }
  .site-header { height: 66px; grid-template-columns: 1fr auto; padding: 0 18px; }
  .site-nav { display: none; }
  .wordmark { font-size: .8rem; }
  .hero { min-height: auto; grid-template-columns: minmax(0, 1fr); padding: 110px 18px 36px; gap: 3.4rem; }
  .hero-title { font-size: clamp(4.3rem, 23vw, 7rem); }
  .hero-title span:last-child { margin-top: .08em; font-size: .67em; line-height: .92; }
  .hero-lead { margin-top: 2.2rem; }
  .hero-lead, .hero-body { max-width: 100%; overflow-wrap: anywhere; line-break: strict; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 1rem; }
  .hero-visual { justify-self: center; width: 100%; max-width: 100%; overflow: hidden; }
  .hero-visual img { border-radius: 9px; }
  .hero-visual figcaption { padding-right: .5rem; }
  .hero-disclaimer { margin-top: 0; font-size: .54rem; }
  .section { padding: 6.5rem 0; }
  .section-intro h2, .open-sticky h2, .support-copy h2, .final-section h2 { font-size: clamp(2.8rem, 13vw, 4.2rem); }
  .platform-grid { grid-template-columns: 1fr; }
  .platform-card, .platform-card:first-child, .platform-card:nth-child(3), .platform-card:nth-child(4) { min-height: 230px; border-left: 0; border-top: 1px solid var(--line); }
  .platform-card:first-child { border-top: 0; }
  .windows-visual > div { align-items: flex-start; flex-direction: column; }
  .windows-visual img { border-radius: 8px; }
  .download-gate-note { text-align: left; }
  .proof-list { margin-top: 4.5rem; }
  .proof-list li { grid-template-columns: 38px 1fr; gap: 1rem; }
  .proof-list li > div { grid-template-columns: 1fr; gap: .8rem; }
  .proof-list h3 { font-size: 1.15rem; }
  .spec-line { grid-template-columns: 1fr; }
  .spec-line > div, .spec-line > div:first-child { min-height: auto; padding: 1.2rem 0; border-left: 0; border-top: 1px solid var(--line); }
  .open-section { grid-template-columns: 1fr; gap: 5rem; }
  .open-sticky { position: static; }
  .open-details article { min-height: 210px; }
  .support-section { min-height: 850px; grid-template-columns: 1fr; gap: 4rem; align-content: center; }
  .support-orbit { width: 550px; left: 8%; top: 35%; opacity: .7; }
  .support-action { max-width: none; }
  .final-section { min-height: 780px; grid-template-columns: 1fr; gap: 3rem; }
  .final-glyph { justify-self: start; width: 250px; }
  .site-footer { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .site-footer nav { justify-self: start; flex-wrap: wrap; max-width: 100%; gap: .8rem 1rem; }
  .footer-brand, .footer-brand > div { min-width: 0; }
  .footer-brand p, .footer-legal, .footer-meta { overflow-wrap: anywhere; }
  .footer-legal, .footer-meta { grid-column: 1; }
  .document-main { padding-top: 130px; }
  .document-hero { padding-bottom: 4rem; }
  .document-list article { grid-template-columns: 35px 1fr; gap: 1rem; }
}

@media (max-width: 760px) {
  :lang(ja) .hero-lead, :lang(ja) .hero-body,
  :lang(ko) .hero-lead, :lang(ko) .hero-body,
  :lang(zh-CN) .hero-lead, :lang(zh-CN) .hero-body { word-break: break-all; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .hero-stage, .js .hero-stage--visual, .js [data-reveal] { opacity: 1; transform: none; }
}