@charset "UTF-8";

:root {
  color-scheme: dark;
  --bg: #080808;
  --surface: #141414;
  --text: #f2f2f2;
  --muted: #a1a1a1;
  --line: #292929;
  --white: #efefef;
  --ease: cubic-bezier(.22, 1, .36, 1);
  font-family: Inter, "SF Pro Display", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 112px; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, select { font: inherit; color: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
img, video, svg { display: block; }
img, video { max-width: 100%; }
h1, h2, h3, p, figure { margin: 0; }
[hidden] { display: none !important; }
::selection { background: #ddd; color: #080808; }
:focus-visible { outline: 2px solid #fff; outline-offset: 5px; border-radius: 5px; }
.skip-link { position: fixed; left: 20px; top: -100px; padding: 12px 20px; background: #fff; color: #000; z-index: 20; }
.skip-link:focus { top: 10px; }
.section-shell { width: calc(100% - 96px); max-width: 1160px; margin-inline: auto; }

/* Shared navigation and controls */
.site-header { height: 88px; width: 100%; padding: 0 max(48px, calc((100vw - 1248px) / 2)); margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 32px; position: sticky; top: 0; z-index: 30; background: var(--bg); }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.brand img { width: 34px; height: auto; }
.brand > span { font-size: 25px; font-weight: 820; font-style: italic; letter-spacing: -1.2px; line-height: 1; }
.header-actions { display: flex; align-items: center; gap: 24px; }
.social-link { display: flex; align-items: center; justify-content: center; width: 28px; height: 28px; flex: none; }
.social-link svg { width: 18px; height: 18px; fill: currentColor; }
.button { min-height: 52px; padding: 0 24px; display: inline-flex; align-items: center; justify-content: center; gap: 18px; border: 1px solid transparent; border-radius: 8px; background: var(--white); color: #111; font-size: 15px; font-weight: 550; line-height: 1.3; white-space: nowrap; transition: background .22s, box-shadow .22s, transform .22s; }
.button:hover { background: #fff; box-shadow: 0 0 30px #ffffff12; transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.button .play-icon { width: 16px; height: 16px; fill: currentColor; stroke: none; }
.button .github-icon { width: 18px; height: 18px; fill: currentColor; stroke: none; }
.button-small { min-height: 37px; font-size: 14px; padding-inline: 15px; gap: 15px; border-radius: 6px; }
.community-trigger img { width: 18px; height: 18px; }
.community-dialog { width: min(410px, calc(100% - 32px)); max-height: calc(100dvh - 32px); margin: auto; padding: 0; overflow: auto; border: 1px solid #ffffff2e; border-radius: 16px; background: #151515; color: var(--text); box-shadow: 0 32px 100px #000c; }
.community-dialog::backdrop { background: #000c; backdrop-filter: blur(7px); }
.community-dialog-inner { position: relative; padding: 28px; text-align: center; }
.community-dialog h2 { padding-inline: 28px; font-size: 24px; font-weight: 600; letter-spacing: -.035em; line-height: 1.3; }
.community-dialog p { margin-top: 9px; color: var(--muted); font-size: 14px; }
.community-qr { width: 100%; height: auto; margin-top: 24px; padding: 10px; border-radius: 8px; background: #fff; }
.community-close { position: absolute; top: 20px; right: 20px; width: 32px; height: 32px; display: grid; place-items: center; padding: 0; border: 0; border-radius: 50%; background: #ffffff12; color: #e9e9e9; }
.community-close:hover { background: #ffffff26; }
.community-close svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; }
.button-ghost { color: #ddd; background: #ffffff04; border-color: #ffffff2a; }
.button-ghost:hover { background: #ffffff0c; box-shadow: none; }
.back-link, .text-link { color: #ccc; font-size: 14px; transition: color .2s; }
.back-link span { margin-left: 10px; }
.back-link:hover, .text-link:hover { color: #fff; }

/* The atmospheric layers stay mounted; only transforms and opacity animate. */
.hero { position: relative; isolation: isolate; overflow: hidden; }
.hero-atmosphere { position: absolute; inset: 0 0 auto; height: 740px; overflow: hidden; z-index: -1; pointer-events: none; mask-image: linear-gradient(#000 68%, transparent); }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(#ffffff06 1px, transparent 1px), linear-gradient(90deg, #ffffff06 1px, transparent 1px); background-size: 88px 88px; mask-image: radial-gradient(ellipse at 50% 34%, #000, transparent 65%); }
.hero-light { position: absolute; width: 870px; height: 280px; top: 92px; border-radius: 50%; background: radial-gradient(ellipse, #ffffff12 0%, #ffffff05 38%, transparent 70%); filter: blur(24px); will-change: transform; }
.light-left { right: 35%; animation: light-drift 12s ease-in-out infinite; }
.light-right { left: 36%; top: 70px; opacity: .65; animation: light-drift 12s -6s ease-in-out infinite reverse; }
.hero-orbit { position: absolute; width: 1420px; height: 680px; left: calc(50% - 710px); top: 105px; border: 1px solid #ffffff14; border-radius: 50%; box-shadow: 0 -12px 70px #ffffff03, inset 0 1px 2px #ffffff12; mask-image: linear-gradient(transparent 0%, #000 30%, #000 75%, transparent); animation: orbit-drift 12s ease-in-out infinite; }
.orbit-two { width: 1640px; height: 730px; left: calc(50% - 820px); top: 57px; opacity: .42; animation-delay: -6s; animation-direction: reverse; }
.hero-content { position: relative; text-align: center; padding: 104px 24px 82px; }
.hero h1 { display: flex; flex-wrap: wrap; justify-content: center; font-size: clamp(54px, 7.1vw, 102px); line-height: 1.2; letter-spacing: -.055em; font-weight: 600; }
.hero h1 > span { white-space: nowrap; }
.headline-accent { background: linear-gradient(160deg, #f0f0f0 8%, #b8b8b8 57%, #767676); background-clip: text; -webkit-background-clip: text; color: transparent; }
.hero-description { display: flex; flex-wrap: wrap; justify-content: center; margin-top: 28px; color: #aaa; font-size: 17px; line-height: 1.9; }
.hero-description > span { white-space: nowrap; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 32px; }
.product-stage { width: calc(100% - 96px); max-width: 1160px; margin: 0 auto; padding-bottom: 5px; }
.demo-player { position: relative; overflow: hidden; isolation: isolate; border-radius: 14px; background: #111; box-shadow: 0 0 0 1px #ffffff22, 0 28px 90px #0009; scroll-margin-block: 32px; }
.demo-player video { width: 100%; height: auto; aspect-ratio: 1280 / 718; object-fit: contain; background: #111; }
.video-start { display: none; }
.js .video-start { position: absolute; inset: 0; display: grid; place-items: center; padding: 0; background: linear-gradient(transparent, #0000000a); border: 0; transition: opacity .25s, visibility .25s; }
.play-circle { width: 68px; height: 68px; display: grid; place-items: center; color: #fff; border: 1px solid #ffffff55; border-radius: 50%; background: #0a0a0a99; backdrop-filter: blur(10px); transition: transform .25s, background .25s, color .25s; }
.play-circle svg { width: 22px; height: 22px; fill: currentColor; margin-left: 2px; }
.video-start:hover .play-circle { transform: scale(1.08); background: #eee; color: #111; }
.video-start:focus-visible { outline-offset: -6px; }
.js .demo-player:not([data-state=idle]) .video-start { opacity: 0; visibility: hidden; pointer-events: none; }
.video-loading { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); padding: 20px; pointer-events: none; opacity: 0; visibility: hidden; transition: opacity .2s, visibility .2s; }
.video-loading > span { display: block; width: 30px; height: 30px; border: 2px solid #ffffff33; border-top-color: #fff; border-radius: 50%; animation: spinner 1s linear infinite; }
.demo-player[data-state=loading] .video-loading { opacity: 1; visibility: visible; transition-delay: .25s; }
.video-error { position: absolute; left: 20px; right: 20px; bottom: 65px; padding: 14px 18px; border-radius: 8px; color: #eee; background: #101010e8; font-size: 14px; }
.video-error a { text-decoration: underline; text-underline-offset: 4px; margin-left: 8px; }

/* Product information */
.workflow { padding-block: 108px 82px; }
.section-title-wrap { margin-bottom: 52px; text-align: center; }
.section-title { font-size: clamp(36px, 5vw, 56px); line-height: 1.3; letter-spacing: -.05em; font-weight: 600; text-align: center; text-wrap: balance; }
.section-title > span { display: inline-block; white-space: nowrap; }
.section-title > span:last-child { color: #a0a0a0; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.feature-icon { width: 34px; height: 34px; fill: none; stroke: #bbb; stroke-width: 1.15; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 24px; }
.feature h3 { font-size: 21px; font-weight: 550; letter-spacing: -.035em; margin-bottom: 12px; }
.feature p { color: var(--muted); font-size: 16px; line-height: 1.85; max-width: 310px; text-wrap: pretty; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; padding-block: 44px 74px; }
.principles article { padding-top: 29px; border-top: 1px solid var(--line); }
.principles h2 { font-size: 17px; font-weight: 500; margin-bottom: 9px; }
.principles p { color: var(--muted); font-size: 15px; text-wrap: pretty; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 102px; color: #969696; font-size: 13px; }
.site-footer .brand { color: #ddd; gap: 8px; }
.site-footer .brand img { width: 28px; }
.site-footer .brand > span { font-size: 21px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 26px; }
.site-footer nav a { transition: color .2s; }
.contributors { padding-block: 84px 88px; }
.contributors > .section-title { margin-bottom: 36px; }
.contributor-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; max-width: 620px; margin-inline: auto; }
.contributor-card { display: flex; flex-direction: column; align-items: center; min-height: 250px; padding: 27px 20px 24px; border: 1px solid #252525; border-radius: 14px; background: #111; text-align: center; }
.contributor-avatar { width: 90px; height: 90px; object-fit: cover; border-radius: 50%; }
.contributor-card h3 { margin-top: 16px; font-size: 19px; font-weight: 550; letter-spacing: -.025em; }
.contributor-links { display: flex; align-items: center; gap: 12px; margin-top: 11px; }
.contributor-links a { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; color: #a7a7a7; transition: color .2s, background .2s; }
.contributor-links a:hover { color: #fff; background: #ffffff14; }
.contributor-links svg { width: 19px; height: 19px; fill: currentColor; }

/* Downloads retain version selection, file sizes and essential installation guidance. */
.download-main { padding: 76px 0 32px; scroll-margin-top: 24px; }
.release-bar { display: flex; align-items: center; gap: 20px; margin-bottom: 24px; }
.version-control { display: flex; align-items: center; gap: 14px; color: var(--muted); font-size: 14px; }
.version-control select { background: #141414; color: #eee; border: 1px solid #363636; border-radius: 6px; padding: 8px 30px 8px 12px; font-size: 14px; min-height: 41px; cursor: pointer; }
.version-control select:disabled { opacity: .65; cursor: default; }
.release-date { color: #969696; font-size: 13px; }
.release-bar > .text-link { margin-left: auto; }
.release-feedback:not(.has-error) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.release-feedback.has-error { margin: -5px 0 18px; font-size: 14px; color: #ccc; }
.download-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.download-card { padding: 30px; background: linear-gradient(135deg, #1b1b1b, #121212); border-radius: 12px; box-shadow: inset 0 1px 0 #ffffff0b; }
.os-heading { min-height: 34px; margin-bottom: 24px; }
.os-icon { width: 34px; height: 34px; fill: #eee; }
.windows-icon { width: 30px; height: 30px; }
.download-card h3 { font-size: 26px; font-weight: 550; letter-spacing: -.03em; }
.architecture { font-size: 15px; color: #d0d0d0; margin-top: 4px; white-space: nowrap; }
.architecture > span { color: #969696; font-size: 13px; }
.architecture > span::before { content: "  ·  "; white-space: pre; color: #777; }
.package-download { min-height: 46px; width: 100%; justify-content: space-between; padding-inline: 17px; margin-top: 32px; font-size: 14px; background: #e6e6e6; }
.package-unavailable { padding-block: 12px; font-size: 14px; color: var(--muted); }
.chip-help { display: flex; justify-content: space-between; gap: 20px; margin-top: 24px; color: var(--muted); font-size: 13px; }
.chip-help a { color: #ccc; white-space: nowrap; }
.chip-help a:hover { color: #fff; }
.install-section { margin-top: 70px; }
.install-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px; list-style: none; padding: 0; margin: 0; }
.step-number { display: block; font-size: 13px; color: #888; margin-bottom: 11px; }
.install-steps h3 { font-size: 18px; font-weight: 500; margin-bottom: 9px; }
.install-steps p { font-size: 15px; line-height: 1.85; color: var(--muted); overflow-wrap: anywhere; }
.download-faq { margin-top: 44px; border-block: 1px solid var(--line); }
.download-faq summary { display: flex; justify-content: space-between; gap: 18px; list-style: none; padding: 20px 0; font-size: 14px; cursor: pointer; }
.download-faq summary::-webkit-details-marker { display: none; }
.download-faq summary > span { color: #aaa; font-size: 20px; line-height: 1; }
.download-faq[open] summary > span { transform: rotate(45deg); }
.download-faq > div { max-width: 800px; padding-bottom: 22px; font-size: 14px; color: var(--muted); }
.download-faq .text-link { display: inline-block; margin-top: 12px; text-decoration: underline; text-underline-offset: 4px; }
.noscript-note { margin-top: 20px; font-size: 14px; }
.noscript-note a { text-decoration: underline; }

.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.feature:nth-child(2) { transition-delay: .06s; }
.feature:nth-child(3) { transition-delay: .12s; }
@keyframes light-drift {
  0%, 100% { transform: translate(-35px, -35px) rotate(-22deg) scale(.92); opacity: .5; }
  50% { transform: translate(110px, 20px) rotate(-6deg) scale(1.13); opacity: 1; }
}
@keyframes orbit-drift {
  0%, 100% { transform: rotate(-13deg) translateY(0); }
  50% { transform: rotate(-6deg) translateY(-24px); }
}
@keyframes spinner { to { transform: rotate(360deg); } }

@media (max-width: 1000px) {
  .site-header { padding-inline: 32px; gap: 24px; }
  .header-actions { gap: 20px; }
  .section-shell, .product-stage { width: calc(100% - 64px); }
  .hero-content { padding-block: 85px 68px; }
  .hero h1 { font-size: clamp(52px, 7.1vw, 72px); }
  .feature-grid, .principles { gap: 32px; }
  .feature h3 { font-size: 19px; }
  .principles p { font-size: 14px; }
  .download-card { padding: 24px; }
  .download-grid { gap: 15px; }
  .install-steps { gap: 30px; }
}
@media (max-width: 680px) {
  html { scroll-padding-top: 100px; }
  .site-header { height: 76px; padding-inline: 22px; gap: 14px; }
  .brand { gap: 7px; }
  .brand img { width: 30px; }
  .brand > span { font-size: 23px; }
  .header-actions { gap: 18px; }
  .header-actions .button-small { min-height: 36px; padding-inline: 12px; font-size: 13px; gap: 10px; }
  .community-trigger img { width: 17px; height: 17px; }
  .community-dialog-inner { padding: 22px; }
  .community-dialog h2 { font-size: 21px; }
  .community-qr { margin-top: 20px; padding: 8px; }
  .social-link svg { width: 19px; height: 19px; }
  .section-shell, .product-stage { width: calc(100% - 40px); }
  .hero-content { padding: 64px 20px 54px; }
  .hero h1 { flex-direction: column; font-size: clamp(46px, 14vw, 72px); line-height: 1.22; }
  .hero-description { margin-top: 25px; font-size: 20px; line-height: 1.7; }
  .hero-description > span { max-width: 100%; }
  .hero-actions { margin-top: 27px; gap: 10px; }
  .button { min-height: 48px; padding-inline: 19px; font-size: 14px; gap: 13px; }
  .hero-atmosphere { height: 660px; }
  .hero-grid { background-size: 56px 56px; }
  .hero-light { width: 580px; height: 230px; }
  .hero-orbit { top: 150px; opacity: .65; }
  .orbit-two { top: 115px; opacity: .3; }
  .demo-player { border-radius: 10px; }
  .play-circle { width: 50px; height: 50px; }
  .play-circle svg { width: 18px; height: 18px; }
  .video-error { left: 10px; right: 10px; bottom: 48px; padding: 12px; font-size: 13px; }
  .workflow { padding-block: 70px 40px; }
  .section-title-wrap { margin-bottom: 33px; }
  .section-title > span { display: block; }
  .feature-grid { grid-template-columns: 1fr; gap: 33px; }
  .feature { display: grid; grid-template-columns: 34px 1fr; gap: 0 17px; }
  .feature-icon { grid-row: 1 / 3; width: 31px; height: 31px; margin: 3px 0 0; }
  .feature h3 { font-size: 19px; margin-bottom: 7px; }
  .feature p { grid-column: 2; max-width: none; font-size: 15px; }
  .principles { grid-template-columns: 1fr; gap: 21px; padding-block: 25px 49px; }
  .principles article { display: grid; grid-template-columns: 85px 1fr; gap: 0 12px; padding-top: 21px; }
  .principles h2 { font-size: 15px; margin: 0; }
  .principles p { font-size: 14px; }
  .site-footer { min-height: 0; padding-block: 26px; gap: 22px; flex-wrap: wrap; }
  .site-footer .brand > span { font-size: 20px; }
  .site-footer .brand img { width: 27px; }
  .site-footer nav { gap: 20px; font-size: 12px; }
  .contributors { padding-block: 70px 76px; }
  .contributors > .section-title { margin-bottom: 30px; }
  .contributor-grid { grid-template-columns: 1fr; gap: 14px; max-width: 320px; }
  .contributor-card { min-height: 0; padding-block: 27px 23px; }
  .download-main { padding: 48px 0 24px; }
  .back-link { font-size: 13px; }
  .release-bar { flex-wrap: wrap; gap: 12px 14px; margin-bottom: 22px; }
  .version-control { font-size: 13px; gap: 10px; }
  .version-control select { font-size: 13px; min-height: 39px; }
  .release-date { order: 3; flex-basis: 100%; font-size: 12px; }
  .release-bar > .text-link { font-size: 13px; }
  .download-grid { grid-template-columns: 1fr; gap: 15px; }
  .download-card { display: grid; grid-template-columns: 1fr auto; padding: 25px; column-gap: 10px; }
  .os-heading { grid-column: 2; grid-row: 1 / 3; margin: 3px 0 0; min-height: 0; }
  .os-icon { width: 31px; height: 31px; }
  .windows-icon { width: 28px; height: 28px; }
  .download-card h3 { grid-column: 1; font-size: 25px; }
  .architecture { grid-column: 1; font-size: 14px; }
  .architecture > span { font-size: 12px; }
  .package-download, .package-unavailable { grid-column: 1 / -1; }
  .package-download { margin-top: 24px; }
  .chip-help { display: block; font-size: 13px; line-height: 1.8; }
  .chip-help a { display: inline-block; margin-top: 10px; }
  .install-section { margin-top: 49px; }
  .install-steps { grid-template-columns: 1fr; gap: 26px; }
  .install-steps li { display: grid; grid-template-columns: 27px 1fr; gap: 0 13px; }
  .step-number { grid-row: 1 / 3; margin-top: 4px; }
  .install-steps h3 { font-size: 17px; margin-bottom: 7px; }
  .install-steps p { grid-column: 2; font-size: 14px; }
  .download-faq { margin-top: 34px; }
}
@media (max-width: 360px) {
  .site-header { padding-inline: 16px; }
  .site-header { gap: 8px; }
  .header-actions { gap: 10px; }
  .section-shell, .product-stage { width: calc(100% - 32px); }
  .hero-content { padding: 50px 16px 46px; }
  .hero-description { font-size: 18px; }
  .hero-actions .button { padding-inline: 16px; gap: 11px; }
  .principles article { grid-template-columns: 76px 1fr; gap: 8px; }
  .principles p { font-size: 13px; }
  .site-footer nav { gap: 17px; }
  .release-bar > .text-link { font-size: 12px; }
  .version-control select { padding-right: 22px; }
}
@media (max-width: 300px) {
  .site-header .brand > span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
  .hero-light { transform: rotate(-12deg); opacity: .6; }
  .hero-orbit { transform: rotate(-10deg); }
  .button:hover, .video-start:hover .play-circle { transform: none; }
}