:root { color-scheme: light; --ink: #202326; --muted: #686e75; --line: #dde1e5; --paper: #f7f8fa; --brand: #e83818; --green: #28654b; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; color: var(--ink); background: #fff; font: 15px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: 0; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
button { font: inherit; cursor: pointer; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 5px; }
.shell { width: min(1120px, calc(100% - 80px)); margin-inline: auto; }
.skip { position: absolute; left: 20px; top: -100px; z-index: 20; padding: 10px 16px; background: white; }
.skip:focus { top: 10px; }
.header { position: sticky; z-index: 5; top: 0; background: #fff; border-bottom: 1px solid var(--line); }
.navigation { height: 76px; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 650; font-size: 20px; white-space: nowrap; }
.brand img { display: block; border-radius: 6px; flex: none; }
nav { display: flex; gap: 28px; margin-left: auto; }
nav a, .studio { text-decoration: none; font-size: 13px; }
nav a { color: var(--muted); }
nav a:hover, .studio:hover { color: var(--brand); }
.studio { border-left: 1px solid var(--line); padding-left: 32px; }
.hero { background: var(--paper); border-bottom: 1px solid var(--line); }
.hero-content { text-align: center; padding-block: 62px 64px; }
.hero-mark { display: block; margin: 0 auto 26px; height: 112px; width: 112px; }
.eyebrow { font-size: 12px; font-weight: 600; margin: 0 0 14px; color: var(--muted); }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { font-size: 72px; font-weight: 650; line-height: 1.12; margin: 0; }
.hero-summary { font-size: 27px; font-weight: 500; line-height: 1.5; margin: 16px 0; }
.hero-description { color: var(--muted); margin: 0 auto 27px; max-width: 580px; }
.actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.button { display: inline-flex; min-height: 44px; justify-content: center; align-items: center; padding: 10px 24px; border: 1px solid transparent; border-radius: 6px; text-decoration: none; font-size: 14px; font-weight: 550; transition: background-color 180ms, border-color 180ms; }
.primary { background: var(--ink); color: #fff; }
.primary:hover { background: #3b4148; }
.secondary { background: transparent; border-color: #c8cdd2; }
.secondary:hover { background: #fff; border-color: #9ba3ab; }
.platforms { color: var(--muted); font-size: 12px; margin: 21px 0 0; }
.platforms span { margin-inline: 10px; color: #a8afb5; }
.section { padding-block: 76px; scroll-margin-top: 20px; }
.section-heading { max-width: 640px; }
.section-heading h2, .download-layout h2, .faq h2 { font-size: 32px; line-height: 1.4; font-weight: 600; margin: 0 0 20px; }
.section-heading > p:not(.eyebrow) { color: var(--muted); margin: 0 0 20px; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 38px; margin-top: 48px; }
.steps article { border-top: 1px solid var(--line); padding-top: 20px; }
.step-number { color: var(--brand); font-variant-numeric: tabular-nums; font-size: 12px; }
h3 { font-size: 18px; font-weight: 600; line-height: 1.5; margin: 12px 0; }
.steps p, .features p { font-size: 14px; color: var(--muted); margin: 0; }
.library-band { background: #f0f4f2; border-block: 1px solid #dde5e0; }
.library-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); gap: 100px; align-items: start; }
.library-layout .eyebrow { color: var(--green); }
.section-heading .muted { font-size: 12px; }
.text-button { color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid #969f98; padding: 0 0 2px; font-size: 13px; }
.text-button:hover { color: var(--green); }
.status { min-height: 24px; color: var(--green); font-size: 12px; }
.catalog-summary { padding-top: 7px; min-width: 0; }
.catalog-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding-bottom: 13px; border-bottom: 1px solid #becdc3; font-size: 13px; }
#catalog-state { color: var(--muted); font-size: 11px; }
.brand-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 20px; padding: 14px 0; border-bottom: 1px solid #d8e2dc; align-items: center; }
.brand-row strong { font-size: 15px; font-weight: 550; }
.brand-row small { display: block; font-size: 11px; color: var(--muted); }
.brand-row span { font-size: 12px; color: var(--green); white-space: nowrap; }
.catalog-note, .catalog-message { color: var(--muted); font-size: 12px; margin-top: 16px; }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 38px; margin-top: 36px; }
.features article { padding-top: 17px; border-top: 1px solid var(--line); }
.version-note { color: var(--green); font-size: 11px; display: inline-block; margin-top: 15px; }
.download-band { background: #262a2e; color: white; }
.download-layout { display: flex; justify-content: space-between; align-items: center; gap: 64px; }
.download-layout > div { max-width: 650px; }
.download-layout p { color: #c6cbcf; font-size: 14px; }
.download-layout .eyebrow { color: #abb3ba; font-size: 12px; }
.download-layout .release-note { color: #abb3ba; font-size: 12px; }
.download-layout .primary { flex: none; background: white; color: var(--ink); }
.download-layout .primary:hover { background: #e8ebee; }
.download-options { flex: 0 1 340px; min-width: 240px; }
.download-options .download-release { font-size: 12px; margin: 0 0 12px; }
.installer-list { display: grid; gap: 12px; }
.installer { display: grid; gap: 5px; }
.installer .button { width: 100%; }
.installer small { color: #b9c1c7; font-size: 11px; overflow-wrap: anywhere; }
.github-download { display: inline-block; margin-top: 17px; font-size: 12px; color: #d7dce0; }
.faq { display: grid; grid-template-columns: 1fr 2fr; gap: 72px; }
details { border-bottom: 1px solid var(--line); padding: 17px 0; }
details:first-child { padding-top: 0; }
summary { cursor: pointer; font-size: 15px; }
details p { color: var(--muted); font-size: 13px; margin: 14px 0 2px; }
.footer { border-top: 1px solid var(--line); padding-block: 34px; background: var(--paper); }
.footer-content { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer .brand { font-size: 16px; }
.footer p { font-size: 11px; color: var(--muted); margin: 8px 0 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 24px; font-size: 11px; color: var(--muted); }
@media (min-width: 1500px) { .hero-content { padding-block: 72px; } }
@media (max-width: 900px) {
  .shell { width: calc(100% - 48px); }
  .navigation { gap: 20px; }
  .studio { padding-left: 20px; }
  nav { gap: 20px; }
  .library-layout { gap: 48px; }
  .steps, .features { gap: 24px; }
  .faq { gap: 36px; }
}
@media (max-width: 600px) {
  .shell { width: calc(100% - 36px); }
  .navigation { height: auto; min-height: 72px; flex-wrap: wrap; justify-content: space-between; padding-block: 13px; gap: 12px; }
  .navigation .brand { font-size: 18px; }
  .studio { border: 0; padding-left: 0; font-size: 12px; }
  nav { order: 3; width: 100%; margin-left: 0; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 9px; }
  nav a { font-size: 12px; }
  .hero-content { padding-block: 35px 40px; }
  .hero-mark { width: 80px; height: 80px; margin-bottom: 20px; }
  h1 { font-size: 48px; }
  .hero-summary { font-size: 22px; margin: 14px 0; }
  .hero-description { font-size: 13px; }
  .button { padding: 10px 20px; }
  .section { padding-block: 48px; }
  .section-heading h2, .download-layout h2, .faq h2 { font-size: 26px; }
  .section-heading > p:not(.eyebrow) { font-size: 14px; }
  .steps, .features, .library-layout, .faq { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .steps { margin-top: 30px; }
  .features { margin-top: 24px; }
  .steps article, .features article { padding-top: 16px; }
  .download-layout, .footer-content { align-items: flex-start; flex-direction: column; gap: 24px; }
  .download-layout .button { width: 100%; }
  .download-options { flex: auto; min-width: 0; width: 100%; }
  .footer-links { gap: 12px 20px; }
}
@media (max-height: 760px) {
  .hero-content { padding-block: 24px; }
  .hero-mark { width: 56px; height: 56px; margin-bottom: 12px; }
  .hero .eyebrow { margin-bottom: 8px; }
  h1 { font-size: 56px; }
  .hero-summary { font-size: 24px; margin-block: 10px; }
  .hero-description { font-size: 13px; line-height: 1.7; margin-bottom: 16px; }
  .hero .button { min-height: 40px; padding-block: 8px; }
  .platforms { margin-top: 10px; }
  .workflow { padding-top: 32px; }
}
@media (max-height: 620px) {
  .hero-content { padding-block: 16px; }
  .hero-mark { width: 40px; height: 40px; margin-bottom: 8px; }
  .hero .eyebrow, .hero .platforms { display: none; }
  h1 { font-size: 40px; }
  .hero-summary { font-size: 20px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }