:root {
  color-scheme: light;
  --ink: var(--site-heading);
  --muted: var(--site-body);
  --blue: var(--site-blue);
  --line: var(--site-border);
  font-family: var(--site-font);
  color: var(--ink);
  background: #fff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; line-height: 1.9; }
a { color: var(--blue); text-underline-offset: .23em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--blue); outline-offset: 5px; }
img { display: block; max-width: 100%; height: auto; }
figure { margin: 0; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.5; letter-spacing: 0; font-weight: 800; }
.skip-link { position: fixed; left: 16px; top: -100px; z-index: 4000; padding: 10px 20px; background: white; }
.skip-link:focus { top: 10px; }
.guide-site-header { position: sticky; top: 0; z-index: 3000; border-bottom: 1px solid rgba(29, 29, 31, 0.08); background: rgba(251, 251, 253, 0.78); -webkit-backdrop-filter: blur(18px) saturate(1.2); backdrop-filter: blur(18px) saturate(1.2); }
.header-inner { max-width: 2172px; min-height: 60px; padding: clamp(7px, 1.3vw, 10px) clamp(24px, 5vw, 68px); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.guide-site-header .site-primary-nav { margin-right: 0; }
.wide { width: min(1104px, calc(100% - 64px)); margin-inline: auto; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 28px 0 36px; list-style: none; font-size: 12px; color: var(--muted); }
.breadcrumb li + li::before { content: "/"; margin-right: 8px; color: #a7aeb8; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
h1 { font-size: clamp(28px, 3vw, 36px); font-weight: 800; margin-bottom: 18px; }
.lead { max-width: 780px; color: var(--muted); font-size: 16px; font-weight: 600; line-height: 1.75; margin-bottom: 24px; }
.section-label { color: var(--blue); font-size: 13px; font-weight: 700; margin-bottom: 12px; }
.meta { display: flex; gap: 6px 20px; flex-wrap: wrap; font-size: 12px; color: var(--muted); margin-bottom: 24px; }
.index-heading { margin-bottom: 38px; }
.index-heading h1 { font-size: 36px; }
.guide-feature { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 64px; border-block: 1px solid var(--line); padding: 36px 0 40px; }
.guide-feature__body { align-self: center; }
.guide-feature h2 { font-size: 26px; margin: 0 0 16px; }
.guide-feature h2 a { color: var(--ink); text-decoration: none; }
.guide-feature h2 a:hover { text-decoration: underline; }
.guide-feature__body > p:not(.section-label) { font-size: 15px; color: var(--muted); margin-bottom: 18px; max-width: 620px; }
.text-link { display: inline-flex; align-items: center; gap: 24px; font-size: 15px; font-weight: 600; text-decoration: none; min-height: 44px; }
.guide-feature__visual { display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--site-surface); border-radius: 8px; padding: 24px; }
.guide-feature__visual img { width: 260px; }
.guide-feature__visual figcaption { color: var(--muted); font-size: 11px; margin-top: 12px; }
.guide-shortcuts { margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line); }
.guide-shortcuts p { font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.guide-shortcuts a { display: flex; justify-content: space-between; align-items: center; min-height: 42px; color: var(--ink); text-decoration: none; font-size: 14px; }
.guide-shortcuts a:hover { color: var(--blue); }
.guide-shortcuts a span { color: var(--muted); }
.related-pages { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 40px; }
.related-pages > a { display: flex; flex-direction: column; text-decoration: none; border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.related-pages > a > span { font-size: 12px; color: var(--muted); }
.related-pages strong { display: flex; justify-content: space-between; align-items: center; font-size: 17px; font-weight: 600; margin-top: 4px; }
.article-heading { max-width: 820px; padding-bottom: 18px; }
.article-heading h1 span { display: inline-block; }
.article-grid { display: grid; grid-template-columns: 224px minmax(0, 740px); gap: 64px; align-items: start; border-top: 1px solid var(--line); padding-top: 32px; }
.toc { position: sticky; top: 88px; font-size: 13px; }
.toc p { font-weight: 600; margin-bottom: 14px; }
.toc ol { padding-left: 1.4em; margin: 0; color: var(--muted); }
.toc li { padding-left: 3px; margin: 10px 0; }
.toc a { display: inline-block; padding: 4px 0; color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--blue); }
.article-body { min-width: 0; font-size: 16px; }
.article-body section { margin-bottom: 56px; }
.article-body h2 { font-size: 25px; margin-bottom: 20px; }
.article-body h3 { font-size: 19px; margin: 30px 0 12px; }
.article-body p { margin-bottom: 20px; }
.article-body li { margin: 10px 0; }
.article-body ul, .article-body ol { padding-left: 1.5em; }
.requirements { margin: 24px 0; border-block: 1px solid var(--line); }
.requirements div { display: grid; grid-template-columns: 100px 1fr; gap: 16px; padding: 16px 0; }
.requirements div + div { border-top: 1px solid var(--line); }
.requirements dt { font-weight: 600; }
.requirements dd { margin: 0; color: var(--muted); }
.note { border-left: 2px solid var(--blue); padding: 4px 0 4px 20px; margin: 26px 0; color: var(--muted); font-size: 14px; }
.note p:last-child { margin-bottom: 0; }
.step-heading { display: flex; gap: 12px; align-items: baseline; }
.step-number { color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; letter-spacing: 0; }
kbd { display: inline-block; font: inherit; font-size: .85em; line-height: 1.45; border: 1px solid #cdd2d9; border-bottom-width: 2px; border-radius: 4px; padding: 1px 6px; background: var(--site-surface); }
.app-figure { margin: 26px 0 14px; }
.app-figure img { width: 100%; border: 1px solid var(--line); }
.app-figure figcaption { font-size: 12px; color: var(--muted); margin-top: 10px; }
.video-link { font-size: 13px; }
.example { padding: 20px 24px; background: var(--site-surface); }
.example p { margin-bottom: 8px; font-size: 13px; font-weight: 600; }
.example ul { margin: 0; color: var(--muted); }
.troubleshooting { margin: 0; }
.troubleshooting div { padding: 20px 0; border-top: 1px solid var(--line); }
.troubleshooting dt { font-weight: 600; margin-bottom: 8px; }
.troubleshooting dd { margin: 0; color: var(--muted); font-size: 15px; }
.download-panel { border-top: 1px solid var(--line); padding-top: 32px; }
.download-panel p { font-size: 15px; color: var(--muted); }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; padding: 10px 20px; border-radius: 999px; background: var(--blue); color: white; text-decoration: none; font-weight: 700; font-size: 14px; line-height: 1.6; }
.button:hover { background: #0077ed; text-decoration: none; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; }
.actions > a:not(.button) { font-size: 14px; }
.download-panel .fine-print { font-size: 12px; margin: 16px 0 0; }
.article-end { border-top: 1px solid var(--line); padding-top: 24px; font-size: 13px; color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); background: var(--site-surface); padding: 32px 0 44px; margin-top: 64px; color: var(--site-muted); font-size: 12px; }
.footer-inner { display: flex; gap: 20px 32px; align-items: center; flex-wrap: wrap; }
.footer-brand { color: var(--ink); font-size: 16px; font-weight: 600; text-decoration: none; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 20px; }
.footer-links a { color: #424245; font-weight: 600; text-decoration: none; }
.footer-inner small { margin-left: auto; }
@media (max-width: 899px) {
  html { scroll-padding-top: 120px; }
  .article-grid { grid-template-columns: 1fr; gap: 36px; padding-top: 24px; }
  .toc { position: static; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
  .toc ol { columns: 2; column-gap: 32px; }
  .toc li { break-inside: avoid; margin: 0 0 8px; }
  .guide-feature { grid-template-columns: minmax(0, 1fr) 240px; gap: 32px; }
  .guide-feature__visual { padding: 16px; }
  .desktop-break { display: none; }
}
@media (max-width: 700px) {
  .wide { width: calc(100% - 40px); }
  .header-inner { padding-inline: 20px; }
  .breadcrumb { margin: 22px 0 28px; font-size: 11px; }
  .index-heading { margin-bottom: 28px; }
  .index-heading h1 { font-size: 28px; }
  .lead { font-size: 15px; }
  .guide-feature { grid-template-columns: 1fr; gap: 28px; padding: 28px 0; }
  .guide-feature h2 { font-size: 23px; }
  .guide-feature__visual img { width: 180px; }
  .guide-feature__visual { padding: 20px; }
  .related-pages { grid-template-columns: 1fr; gap: 24px; margin-top: 28px; }
  .article-heading h1 { font-size: 27px; }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 22px; }
  .article-body h3 { font-size: 18px; }
  .requirements div { grid-template-columns: 78px 1fr; gap: 12px; }
  .toc ol { columns: 1; }
  .toc a { min-height: 36px; }
  .meta { margin-bottom: 20px; }
  .site-footer { margin-top: 44px; }
}
@media (max-width: 360px) { .article-heading h1 { font-size: 24px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }