:root {
  color-scheme: light;
  --background: #f7f8fa;
  --ink: #181d28;
  --muted: #727e94;
  --accent: #3864f8;
  --line: #dce2ec;
  --green: #218653;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--ink);
  background: var(--background);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 36px; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 6px; border-radius: 3px; }
::selection { background: #cdd9ff; }
.shell { width: min(1240px, calc(100% - 128px)); margin-inline: auto; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 20px; height: 20px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.skip-link { position: fixed; left: 24px; top: -100px; z-index: 10; padding: 14px 22px; background: var(--ink); color: white; }
.skip-link:focus { top: 16px; }
.site-header { display: flex; align-items: center; gap: 40px; min-height: 96px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 18px; font-weight: 650; letter-spacing: -.6px; white-space: nowrap; }
.brand img { object-fit: contain; }
.site-header nav { margin-left: auto; display: flex; align-items: center; gap: 34px; font-size: 14px; font-weight: 500; }
.site-header nav a { padding-block: 12px; }
.site-header nav a:hover, .site-footer a:hover { color: var(--accent); }
.language-switch { display: flex; align-items: center; gap: 1px; font-size: 13px; }
.language-switch a { padding: 9px 11px; color: #59677f; border-radius: 5px; }
.language-switch a[aria-current='page'] { color: var(--accent); background: #e8eeff; font-weight: 600; }
.hero { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 64px; padding: 82px 0 138px; }
h1 { margin: 0; font-size: clamp(44px, 6.8vw, 92px); font-weight: 750; line-height: 1.19; letter-spacing: -4px; }
h1 span { display: block; white-space: nowrap; }
h1 span + span { color: var(--accent); }
html[lang='en'] h1 { font-size: clamp(42px, 5.1vw, 72px); letter-spacing: -3.8px; }
.hero-description { max-width: 480px; margin: 27px 0 30px; font-size: 18px; line-height: 1.7; color: #49556d; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 34px; }
.button { min-height: 54px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 14px 25px; border: 1px solid transparent; border-radius: 7px; font-size: 15px; font-weight: 550; line-height: 1.4; transition: background .18s, border-color .18s, transform .18s; }
.button-primary { color: white; background: var(--accent); }
.button-primary:hover { background: #2550e3; transform: translateY(-2px); }
.text-link { display: inline-flex; align-items: center; gap: 9px; font-size: 14px; }
.hero-actions .text-link { color: var(--accent); font-weight: 550; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.platform-note { margin: 17px 0 0; color: #5c6980; font-size: 13px; }
.port-demo { position: relative; isolation: isolate; padding: 34px 30px 0; min-width: 0; }
.port-grid { position: absolute; z-index: -1; inset: 0 0 70px; background-image: linear-gradient(#e4e9f1 1px, transparent 1px), linear-gradient(90deg, #e4e9f1 1px, transparent 1px); background-size: 32px 32px; mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent); }
.port-grid::before, .port-grid::after { content: ''; position: absolute; background: #b7c2d5; }
.port-grid::before { width: 1px; height: 100%; left: 50%; }
.port-grid::after { height: 1px; width: 100%; top: 49%; }
.port-message { font: 12px/1.5 var(--mono); margin-left: 17px; min-height: 18px; transition: color .2s; }
.port-number { margin: 18px -5px 36px; font: 500 clamp(82px, 9.7vw, 140px)/1.05 var(--mono); letter-spacing: -9px; white-space: nowrap; transition: color .3s; }
.port-status { display: flex; align-items: center; gap: 11px; margin-left: 15px; font: 12px/1.6 var(--mono); }
.status-dot { width: 10px; height: 10px; background: #a86d15; border-radius: 50%; transition: background .3s; }
.button-demo { display: flex; margin: 32px 0 0 auto; min-height: 46px; padding: 11px 17px; background: var(--background); border-color: var(--ink); font-size: 13px; }
.button-demo:hover { background: #e9edf4; }
.demo-note { margin: 12px 0 0; font-size: 11px; text-align: right; color: #657188; }
.port-demo[data-state='available'] .status-dot { background: var(--green); }
.port-demo[data-state='available'] .port-number, .port-demo[data-state='available'] .port-message { color: var(--accent); }
.section-heading { text-align: center; margin: 0 auto 38px; }
h2 { margin: 0; font-size: clamp(29px, 3.1vw, 42px); line-height: 1.35; letter-spacing: -1.6px; font-weight: 700; }
.section-heading p { color: #5d6a81; font-size: 16px; line-height: 1.65; margin: 14px 0 0; }
.product-preview { margin: 0 auto; max-width: 1100px; }
.product-preview img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 12px; background: white; box-shadow: 0 16px 44px -18px #25385535; }
figcaption { margin-top: 22px; color: #627088; font-size: 12px; line-height: 1.6; text-align: center; }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: 94px 0 80px; }
.feature-list article { padding: 0 48px; border-left: 1px solid #ccd4e2; }
.feature-list article:first-child { padding-left: 0; border-left: 0; }
.feature-list article:last-child { padding-right: 0; }
.feature-number { color: #61718c; font: 14px/1.5 var(--mono); }
h3 { font-size: 23px; line-height: 1.4; letter-spacing: -.6px; margin: 17px 0 10px; }
.feature-list p { color: #5d6a81; font-size: 15px; line-height: 1.8; margin: 0; max-width: 310px; }
.download-section { border-top: 1px solid var(--line); padding: 77px 0 58px; }
.download-section .section-heading { margin-bottom: 30px; }
.download-options { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 800px; margin: 0 auto; }
.platform-download { display: flex; align-items: center; gap: 20px; padding: 20px 24px; border: 1px solid #818da2; border-radius: 7px; transition: border-color .2s, background .2s, transform .2s; }
.platform-download:hover { border-color: var(--accent); background: #eaf0ff; transform: translateY(-2px); }
.platform-download .icon { margin-left: auto; }
.platform-icon { width: 25px; height: 25px; flex-shrink: 0; }
.platform-download strong { display: block; font-size: 15px; line-height: 1.5; font-weight: 550; }
.platform-download small { display: block; font-size: 11px; color: #5e6b80; margin-top: 5px; line-height: 1.5; }
.release-links { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 18px; margin: 24px 0 45px; font-size: 12px; color: #5d6a81; }
.release-links .text-link { font-size: 12px; color: var(--ink); }
.release-links .icon { width: 16px; height: 16px; }
.install-notes { border: 1px solid var(--line); border-radius: 7px; }
.install-notes summary { display: flex; align-items: center; gap: 12px; padding: 20px 24px; cursor: pointer; list-style: none; font-size: 13px; font-weight: 550; }
.install-notes summary::-webkit-details-marker { display: none; }
.install-notes summary .icon { transition: transform .2s; }
.install-notes[open] summary .icon { transform: rotate(180deg); }
.install-notes > div { padding: 0 56px 26px; color: #536078; font-size: 13px; line-height: 1.8; }
.install-notes p { margin-top: 0; }
.install-notes .text-link { font-size: 13px; color: var(--accent); }
.site-footer { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; padding: 30px 0 38px; border-top: 1px solid var(--line); font-size: 11px; color: #5f6c83; }
.footer-brand { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; }
.footer-brand .brand { color: var(--ink); font-size: 14px; gap: 9px; letter-spacing: -.3px; }
@media (min-width: 1500px) { .hero { gap: 90px; } }
@media (max-width: 1100px) {
  .shell { width: calc(100% - 80px); }
  .hero { gap: 36px; padding-top: 70px; padding-bottom: 100px; }
  h1 { font-size: 6.8vw; letter-spacing: -2.8px; }
  .hero-description { font-size: 16px; }
  .hero-actions { gap: 20px; }
  .port-demo { padding-inline: 18px; }
  .port-number { font-size: 10vw; letter-spacing: -7px; }
  .feature-list article { padding-inline: 30px; }
}
@media (max-width: 760px) {
  .shell { width: calc(100% - 40px); }
  .site-header { min-height: 80px; gap: 14px; flex-wrap: wrap; }
  .brand { font-size: 16px; gap: 8px; }
  .brand img { width: 28px; height: 28px; }
  .site-header nav { gap: 17px; font-size: 12px; order: 3; flex-basis: 100%; margin: -6px 0 0; padding-bottom: 6px; }
  .language-switch { margin-left: auto; font-size: 12px; }
  .language-switch a { padding: 9px; }
  .hero { grid-template-columns: 1fr; gap: 44px; padding: 48px 0 68px; }
  h1 { font-size: clamp(35px, 8.9vw, 62px); letter-spacing: -2px; }
  html[lang='en'] h1 { font-size: clamp(35px, 8.7vw, 62px); letter-spacing: -2.1px; }
  .hero-description { margin-top: 23px; max-width: 440px; }
  .hero-actions { gap: 25px; }
  .button { min-height: 50px; padding: 13px 21px; font-size: 14px; }
  .hero-actions .text-link { font-size: 13px; }
  .port-demo { width: 100%; max-width: 480px; justify-self: center; padding: 25px 22px 0; }
  .port-number { font-size: clamp(86px, 24vw, 140px); text-align: center; margin: 24px -7px 27px; letter-spacing: -7px; }
  .port-message, .port-status { margin-left: 7px; }
  .button-demo { min-height: 43px; margin-top: 23px; font-size: 12px; padding: 10px 14px; }
  .section-heading { margin-bottom: 26px; }
  h2 { font-size: 28px; letter-spacing: -1px; }
  .section-heading p { font-size: 14px; }
  .product-preview img { border-radius: 7px; }
  figcaption { font-size: 11px; margin-top: 15px; }
  .feature-list { grid-template-columns: 1fr; margin: 42px 0 45px; }
  .feature-list article, .feature-list article:first-child, .feature-list article:last-child { display: grid; grid-template-columns: 35px 1fr; column-gap: 16px; padding: 25px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .feature-list article:last-child { border-bottom: 0; padding-bottom: 0; }
  .feature-number { grid-row: span 2; padding-top: 3px; }
  h3 { font-size: 20px; margin: 0 0 8px; }
  .feature-list p { font-size: 14px; max-width: none; }
  .download-section { padding: 45px 0 38px; }
  .download-options { grid-template-columns: 1fr; gap: 12px; max-width: 480px; }
  .platform-download { padding: 17px 20px; }
  .release-links { gap: 12px; margin-bottom: 28px; }
  .install-notes summary { padding: 18px; }
  .install-notes > div { padding: 0 20px 20px; font-size: 12px; }
  .site-footer { padding-top: 24px; padding-bottom: 30px; }
  .footer-brand { gap: 15px; }
}
@media (max-width: 350px) {
  .shell { width: calc(100% - 32px); }
  .hero-actions { gap: 16px; }
  h1 { font-size: 32px; }
  html[lang='en'] h1 { font-size: 32px; }
  .brand { font-size: 14px; }
  .language-switch a { padding-inline: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}