:root {
  color-scheme: light dark;
  --bg: #fafafa; --surface: #fff; --soft: #f1f1f1;
  --ink: #222; --muted: #626262; --line: #dfdfdf;
  --accent: #242424; --accent-soft: #ececec; --on-accent: #fff;
  --shadow: 0 20px 55px -30px #0005, 0 1px 3px #0000000a;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-family: var(--font); font-size: 100%; font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 7rem; }
body { margin: 0; color: var(--ink); background: var(--bg); line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, summary { cursor: pointer; }
a, button, summary { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 5px; border-radius: 3px; }
::selection { background: var(--accent-soft); color: var(--ink); }
[hidden] { display: none !important; }
img { display: block; max-width: 100%; height: auto; }
figure { margin: 0; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
h1 { font-size: clamp(3rem, 5.6vw, 4.8rem); font-weight: 610; line-height: 1.18; letter-spacing: -.05em; }
h2 { font-size: clamp(1.9rem, 3vw, 2.6rem); font-weight: 590; line-height: 1.35; letter-spacing: -.035em; }
h3 { font-size: 1.125rem; font-weight: 600; line-height: 1.5; letter-spacing: -.015em; }
code { font-family: var(--mono); font-size: .88em; overflow-wrap: anywhere; }
kbd { display: inline-block; padding: .1rem .4rem; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; font: .8rem/1.5 var(--font); background: var(--surface); color: var(--ink); white-space: nowrap; }
.wrap { width: min(1120px, calc(100% - 5rem)); margin-inline: auto; }
.skip-link { position: fixed; top: .7rem; left: 1rem; padding: .6rem 1rem; background: var(--surface); z-index: 100; transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(18px); }
.header-inner { min-height: 5rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .65rem; font-size: 1.25rem; font-weight: 620; letter-spacing: -.025em; flex-shrink: 0; }
.brand-cn { color: var(--muted); margin-left: .25rem; font-size: .82rem; font-weight: 450; letter-spacing: .08em; }
.site-header nav { display: flex; gap: 1.8rem; align-items: center; font-size: .85rem; }
.site-header nav > a { display: inline-flex; align-items: center; gap: .4rem; min-height: 44px; }
.site-header nav > a:not(.nav-download) { color: var(--muted); }
.site-header nav > a:hover, .site-header nav > a[aria-current="page"] { color: var(--ink); }
.site-header .nav-download { background: var(--ink); color: var(--bg); border-radius: 8px; padding: .35rem 1rem; min-height: 38px; }
.eyebrow { color: var(--muted); font-size: .75rem; font-weight: 550; letter-spacing: .08em; margin-bottom: .85rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: .6rem; min-height: 48px; padding: .75rem 1.25rem; border-radius: 9px; font-size: .9rem; font-weight: 560; transition: background .18s, box-shadow .18s; }
.primary { background: var(--accent); color: var(--on-accent); }
.primary:hover { box-shadow: 0 3px 14px #0003; }
.secondary { border: 1px solid var(--line); background: var(--surface); }
.secondary:hover { background: var(--soft); }
.button svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.text-link { display: inline-flex; align-items: center; gap: .75rem; min-height: 44px; font-size: .875rem; font-weight: 500; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.hero { padding-block: 4.3rem 4.5rem; }
.hero-copy { text-align: center; }
.hero-description { margin: 1.4rem auto 0; max-width: 38rem; font-size: 1.12rem; line-height: 1.9; color: var(--muted); }
.hero-actions { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 1.6rem; margin-top: 1.9rem; }
.download-meta { margin-top: .9rem; color: var(--muted); font-size: .75rem; }
.download-meta span { margin-inline: .3rem; }
.input-recording { margin: 0; max-width: 760px; }
.input-recording img { width: 100%; height: auto; display: block; border-radius: 14px; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
.input-recording figcaption { margin-top: 1rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: .4rem 1rem; font-size: .75rem; color: var(--muted); }
.recording-details { max-width: 32rem; text-align: right; }
.recording-details summary { text-decoration: underline; text-underline-offset: 3px; }
.recording-details p { margin-top: .65rem; text-align: left; }
.section { padding-block: 5.5rem; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 3rem; margin-bottom: 2.75rem; }
.section-heading > p { color: var(--muted); max-width: 24rem; font-size: .95rem; }
.input-section, .extended-features { border-top: 1px solid var(--line); }
.input-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
.input-column { min-width: 0; display: flex; flex-direction: column; }
.input-copy { flex: 1; margin-bottom: 1.5rem; }
.input-copy h3 { font-size: 1.35rem; }
.input-copy p { margin-top: .8rem; color: var(--muted); }
.candidate-showcase { background: #fafafa; color: #222; border: 1px solid var(--line); border-radius: 13px; overflow: hidden; }
.candidate-showcase figcaption { padding: 1.5rem 1.5rem 0; }
.candidate-showcase h4 { font-size: .9rem; font-weight: 550; }
.candidate-showcase p { margin-top: .4rem; color: #626262; font-size: .85rem; }
.screenshot-stage { display: grid; align-items: center; min-height: 12.5rem; padding: 1.5rem; }
.screenshot-crop, .theme-crop { position: relative; overflow: hidden; width: 100%; }
.screenshot-crop img, .theme-crop img { position: absolute; max-width: none; height: auto; }
.reverse-crop { aspect-ratio: 590 / 186; }
.reverse-crop img { width: 230.50848%; left: -11.01695%; top: -152.68817%; }
.english-crop { aspect-ratio: 590 / 148; }
.english-crop img { width: 230.50848%; left: -122.71186%; top: -218.24324%; }
.gallery-source { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1rem; margin-top: 1rem; color: var(--muted); font-size: .75rem; }
.gallery-source a { text-decoration: underline; text-underline-offset: 4px; }
.learning-note { display: grid; grid-template-columns: 1fr 1.35fr; gap: 3rem; margin-top: 3rem; padding-top: 2.5rem; border-top: 1px solid var(--line); }
.learning-note h3 { max-width: 14em; font-size: 1.25rem; }
.learning-note p { color: var(--muted); }
.learning-note .text-link { margin-top: .7rem; color: var(--muted); }
.scheme-list { display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; list-style: none; margin: 1.25rem 0 0; }
.scheme-list li { background: var(--soft); border: 1px solid var(--line); padding: .25rem .65rem; border-radius: 6px; font-size: .75rem; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem 3rem; }
.feature-grid article { border-top: 1px solid var(--line); padding-top: 1.25rem; display: flex; flex-direction: column; align-items: flex-start; }
.feature-index { font: .7rem var(--mono); color: var(--muted); margin-bottom: .9rem; }
.feature-grid p { margin-top: .7rem; color: var(--muted); font-size: .95rem; flex: 1; }
.feature-grid a { display: inline-flex; gap: .7rem; align-items: center; min-height: 44px; margin-top: .8rem; font-size: .8rem; }
.feature-grid a:hover { text-decoration: underline; text-underline-offset: 4px; }
.appearance-section { background: var(--soft); }
.theme-controls { display: flex; overflow-x: auto; gap: .45rem; padding: .4rem .25rem .8rem; margin-bottom: 1.25rem; }
.theme-controls button { flex-shrink: 0; border: 1px solid transparent; background: transparent; color: var(--muted); border-radius: 8px; min-height: 44px; padding: .5rem .8rem; font-size: .8rem; }
.theme-controls button:hover { background: var(--accent-soft); }
.theme-controls button[aria-selected="true"] { background: var(--ink); color: var(--bg); }
.theme-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.theme-card { background: #fafafa; color: #222; border: 1px solid var(--line); border-radius: 13px; padding: 1.75rem; }
.theme-card figcaption { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: .4rem 1rem; margin-bottom: 1.5rem; }
.theme-card h3 { font-size: 1rem; }
.theme-card figcaption > span { color: #626262; font-size: .75rem; }
.theme-crop { aspect-ratio: 445 / 113; }
.theme-crop img { width: 305.61798%; left: var(--crop-left); top: var(--crop-top); }
.theme-gallery.is-interactive { display: block; }
.theme-gallery.is-interactive .theme-card { display: grid; grid-template-columns: 1fr minmax(0, 445px); gap: 2.5rem; align-items: center; padding: 2.5rem 3rem; }
.theme-gallery.is-interactive .theme-card figcaption { flex-direction: column; align-items: flex-start; gap: .5rem; margin: 0; }
.theme-gallery.is-interactive .theme-card h3 { font-size: 1.35rem; }
.theme-gallery.is-interactive .theme-crop { max-width: 445px; margin-inline: auto; }
.everyday { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4rem; }
.everyday article { padding: .5rem 0; }
.everyday h2 { font-size: 1.8rem; }
.everyday p { margin-top: 1rem; color: var(--muted); }
.everyday .text-link { margin-top: 1.1rem; }
.line-icon { display: block; width: 32px; height: 32px; fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 1.5rem; }
.guide-callout { display: flex; justify-content: space-between; align-items: center; gap: 2rem; background: var(--soft); padding: 2.5rem 3rem; border-radius: 14px; margin-bottom: 5.5rem; }
.guide-callout h2 { font-size: 1.7rem; }
.guide-callout p:not(.eyebrow) { margin-top: .65rem; color: var(--muted); font-size: .9rem; }
.guide-callout .button { flex-shrink: 0; }
.install-section { padding-block: 4.5rem 3rem; border-top: 1px solid var(--line); }
.install-heading { display: flex; flex-direction: column; align-items: center; text-align: center; }
.install-heading > img { width: 54px; margin-bottom: 1.3rem; }
.install-heading h2 { margin-bottom: .7rem; }
.install-heading > p { color: var(--muted); font-size: .875rem; }
.install-heading .button { margin-top: 1.5rem; }
.release-link { color: var(--muted); font-size: .8rem; padding: .75rem; }
.install-steps { list-style: none; padding: 0; margin: 3rem 0 2rem; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
.step-number { display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; width: 1.8rem; height: 1.8rem; font: .75rem var(--mono); margin-bottom: 1rem; }
.install-steps h3 { font-size: 1rem; }
.install-steps p { color: var(--muted); margin-top: .6rem; font-size: .875rem; }
.install-help { border-top: 1px solid var(--line); padding-top: 1.25rem; display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.verify-details { font-size: .85rem; color: var(--muted); }
.verify-details summary { padding-block: .7rem; }
.verify-details > p { margin-block: .7rem; }
.command-row { display: flex; align-items: center; flex-wrap: wrap; gap: .5rem 1rem; border: 1px solid var(--line); border-radius: 8px; padding: .65rem .9rem; background: var(--surface); }
.command-row code { color: var(--ink); font-size: .8rem; }
.command-row button { margin-left: auto; padding: .35rem .2rem; min-height: 38px; font-size: .75rem; border: 0; background: transparent; color: var(--ink); }
.copy-status { font-size: .75rem !important; margin-top: .5rem; }
.site-footer { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; padding-block: 2rem; border-top: 1px solid var(--line); }
.site-footer p { color: var(--muted); font-size: .75rem; margin-top: .6rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .5rem 1.4rem; color: var(--muted); font-size: .75rem; }
.footer-links > span { flex-basis: 100%; text-align: right; }
/* The guide uses the same type and materials, with a persistent reading index. */
.guide-layout { display: grid; grid-template-columns: 205px minmax(0, 1fr); gap: 5rem; }
.guide-sidebar { position: sticky; top: 6.5rem; align-self: start; padding-block: 1.8rem 1rem; max-height: calc(100dvh - 7.5rem); overflow-y: auto; }
.guide-navigation summary { display: flex; justify-content: space-between; align-items: center; font-size: .8rem; font-weight: 550; list-style: none; }
.guide-navigation summary::-webkit-details-marker, .guide-details summary::-webkit-details-marker { display: none; }
.guide-navigation summary { pointer-events: none; }
.guide-navigation summary .disclosure-icon, .nav-current-label { display: none; }
.guide-toc { margin-top: 1.3rem; }
.nav-group { margin: 1.5rem .65rem .4rem; color: var(--muted); font-size: .7rem; letter-spacing: .04em; }
.nav-group:first-child { margin-top: 0; }
.guide-toc a { display: flex; align-items: center; gap: .7rem; padding: .55rem .7rem; min-height: 40px; color: var(--muted); border-radius: 6px; font-size: .85rem; }
.guide-toc a > span { font: .65rem var(--mono); opacity: .75; }
.guide-toc a:hover { color: var(--ink); background: var(--soft); }
.guide-toc a[aria-current="location"] { color: var(--ink); background: var(--accent-soft); font-weight: 550; }
.sidebar-source { display: inline-flex; gap: 1rem; color: var(--muted); font-size: .75rem; margin: 2rem .65rem 0; padding-block: .5rem; }
.guide-content { min-width: 0; padding-bottom: 2rem; }
.guide-intro { padding-top: 3.5rem; padding-bottom: 3.5rem; }
.guide-intro h1 { font-size: clamp(2.4rem, 4vw, 3.4rem); letter-spacing: -.045em; }
.guide-lead { color: var(--muted); font-size: 1.05rem; margin-top: 1rem; }
.quick-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .6rem; margin-top: 2rem; }
.quick-links a { display: flex; justify-content: space-between; align-items: center; gap: .5rem; font-size: .75rem; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: .85rem; transition: background .18s; }
.quick-links a:hover { background: var(--soft); }
.quick-links a > span:last-child { color: var(--muted); }
.settings-entry { display: grid; grid-template-columns: 5rem 1fr; column-gap: 1rem; margin-top: 2rem; padding: 1.2rem 1.3rem; background: var(--soft); border-radius: 8px; }
.entry-label { font-size: .75rem; color: var(--muted); padding-top: .15rem; }
.settings-entry p { font-size: .875rem; }
.settings-entry p span { color: var(--muted); margin-inline: .5rem; }
.settings-entry small { grid-column: 2; color: var(--muted); font-size: .75rem; margin-top: .35rem; }
.guide-section { padding-block: 3rem; border-top: 1px solid var(--line); }
.chapter-heading { display: flex; align-items: baseline; gap: .85rem; margin-bottom: 1rem; }
.chapter-heading > span { color: var(--muted); font: .7rem var(--mono); }
.chapter-heading h2 { font-size: 1.7rem; }
.guide-section > p, .guide-section li p, .guide-section dd, .guide-details p { color: var(--muted); font-size: .9375rem; line-height: 1.85; }
.guide-section > p + p { margin-top: .7rem; }
.guide-section h3 { margin-top: 1.7rem; margin-bottom: .65rem; font-size: 1.05rem; }
.guide-section a:not(.text-link) { text-decoration: underline; text-underline-offset: 4px; }
.guide-section > .settings-path { display: inline-flex; flex-wrap: wrap; gap: .5rem; margin-bottom: .8rem; font-size: .75rem; color: var(--muted); }
.settings-path span { color: var(--muted); }
.steps { margin: 1.75rem 0; padding: 0; list-style: none; counter-reset: steps; }
.steps > li { position: relative; padding: 0 0 1.6rem 2.9rem; counter-increment: steps; }
.steps > li::before { content: counter(steps, decimal-leading-zero); position: absolute; top: .1rem; left: 0; font: .7rem var(--mono); color: var(--muted); padding-block: .35rem; }
.steps > li:not(:last-child)::after { content: ""; position: absolute; left: .55rem; top: 2rem; bottom: .4rem; width: 1px; background: var(--line); }
.steps h3 { margin: 0 0 .4rem; }
.steps > li:last-child { padding-bottom: 0; }
.compact-steps { padding-left: 1.25rem; margin: .6rem 0 1.5rem; font-size: .9375rem; color: var(--muted); }
.compact-steps li { padding-left: .4rem; margin-top: .5rem; }
.note { padding: 1.2rem 1.4rem; background: var(--soft); border-left: 2px solid var(--line); border-radius: 0 8px 8px 0; margin-block: 1.5rem; }
.note strong { font-size: .85rem; font-weight: 550; }
.note p { margin-top: .4rem; font-size: .85rem; color: var(--muted); line-height: 1.85; }
.guide-details { border-bottom: 1px solid var(--line); margin-top: 1rem; }
.guide-details summary { display: flex; justify-content: space-between; align-items: center; gap: 1rem; min-height: 48px; padding-block: .85rem; font-size: .85rem; list-style: none; }
.disclosure-icon { display: inline-block; font-size: 1.3rem; font-weight: 300; line-height: 1; flex-shrink: 0; transition: transform .18s; }
details[open] > summary .disclosure-icon { transform: rotate(45deg); }
.guide-details > div { padding-block: .25rem 1.5rem; }
.guide-details p + p, .guide-details p + a, .guide-details .command-row { margin-top: 1rem; }
.guide-details a { font-size: .85rem; display: inline-block; }
.option-list { margin: 1.3rem 0; }
.option-list > div { display: grid; grid-template-columns: 7rem 1fr; gap: 1.3rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.option-list dt { font-size: .85rem; font-weight: 550; }
.option-list dd { margin: 0; }
.guide-details .option-list { margin: 0; }
.guide-details .option-list > div:last-child { border: 0; }
.mode-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; margin-top: 1.7rem; }
.mode-cards article { padding: 1.25rem 1rem; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
.mode-badge { display: grid; place-items: center; width: 2.6rem; height: 2.6rem; border: 1px solid var(--line); border-radius: 8px; font-size: 1.25rem; }
.mode-cards h3 { font-size: .9rem; margin: 1rem 0 .5rem; }
.mode-cards p { font-size: .8rem; color: var(--muted); }
.input-example { padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; margin: 1.3rem 0; }
.input-example > div { display: flex; flex-direction: column; gap: .4rem; }
.input-example > div > span { font-size: .7rem; color: var(--muted); }
.input-example code { font-size: .95rem; }
.input-example strong { font-weight: 500; font-size: 1.05rem; overflow-wrap: anywhere; }
.example-arrow { display: block; color: var(--muted); margin-block: .55rem; font-size: .875rem; }
.guide-section .fine-print { font-size: .8rem; }
.guide-figure { margin-block: 1.5rem; }
.guide-figure .screenshot-stage { min-height: 0; padding: 2rem 1.5rem 1rem; }
.guide-figure figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; padding: .8rem 1.5rem 1.2rem; font-size: .7rem; color: #626262; }
.settings-figure { max-width: 680px; }
.settings-figure img { width: 100%; border: 1px solid var(--line); border-radius: 12px; }
.settings-figure figcaption { color: var(--muted); padding-inline: 0; }
.lookup-examples { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; padding-block: 1rem; margin-top: .7rem; }
.lookup-examples div { display: flex; flex-direction: column; gap: .4rem; }
.lookup-examples span { color: var(--muted); font-size: .7rem; }
.lookup-examples strong { font-size: .95rem; font-weight: 500; }
.guide-end { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; padding-block: 2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .8rem; }
.guide-end p a { text-decoration: underline; text-underline-offset: 4px; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #151515; --surface: #1d1d1d; --soft: #1d1d1d; --ink: #eee; --muted: #a8a8a8; --line: #343434; --accent: #eee; --accent-soft: #292929; --on-accent: #181818; --shadow: 0 20px 55px -30px #0009; }
  .brand img, .install-heading > img { filter: invert(1); }
}
@media (max-width: 1100px) {
  .site-header nav { gap: 1.2rem; }
  .guide-layout { gap: 3rem; grid-template-columns: 190px minmax(0, 1fr); }
  .quick-links { grid-template-columns: 1fr; }
  .feature-grid { gap: 2rem; }
}
@media (max-width: 999px) {
  .guide-layout { display: block; }
  .guide-content { max-width: 760px; margin-inline: auto; }
  .guide-sidebar { position: sticky; top: 5rem; padding: 0; max-height: none; overflow: visible; z-index: 25; background: var(--bg); border-bottom: 1px solid var(--line); }
  .guide-navigation summary { pointer-events: auto; gap: 1rem; min-height: 3.2rem; }
  .guide-navigation summary .disclosure-icon { display: inline; }
  .nav-current-label { display: inline; margin-left: auto; color: var(--muted); font-weight: 400; font-size: .75rem; }
  .guide-toc { margin: 0; max-height: 55vh; overflow-y: auto; padding-block: .7rem 1.25rem; }
  .sidebar-source { display: none; }
  .guide-content .guide-section, .guide-content h3[id] { scroll-margin-top: 3.5rem; }
  .guide-intro { padding-top: 2.5rem; }
  .quick-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 800px) {
  .wrap { width: calc(100% - 3rem); }
  .header-inner { min-height: 4.5rem; gap: 1.2rem; }
  .site-header .nav-github, .site-header .nav-appearance { display: none; }
  .hero { padding-block: 3.3rem 3.5rem; }
  .hero-description { font-size: 1rem; }
  .section { padding-block: 4rem; }
  .section-heading { gap: 2rem; }
  .section-heading > p { max-width: 20rem; }
  .input-columns { gap: 1.5rem; }
  .input-copy p { font-size: .9rem; }
  .screenshot-stage { padding: 1rem; min-height: 10rem; }
  .candidate-showcase figcaption { padding: 1.2rem 1.2rem 0; }
  .learning-note { gap: 2rem; }
  .everyday { gap: 2rem; }
  .everyday h2 { font-size: 1.6rem; }
  .guide-callout { padding: 2rem; margin-bottom: 4rem; }
  .install-steps { gap: 1.5rem; }
  .guide-sidebar { top: 4.5rem; }
}
@media (max-width: 600px) {
  .wrap { width: calc(100% - 2.5rem); }
  .brand { font-size: 1.15rem; gap: .4rem; }
  .brand img { width: 30px; }
  .brand-cn { font-size: .75rem; }
  .site-header nav { gap: .75rem; font-size: .8rem; }
  .site-header .nav-features, .guide-body .site-header nav > a[aria-current="page"] { display: none; }
  .site-header .nav-download { padding-inline: .75rem; }
  h1 { font-size: 3rem; }
  h2 { font-size: 1.85rem; }
  .hero { padding-top: 2.6rem; }
  .hero-description { font-size: .95rem; }
  .hero-actions { gap: 1rem; margin-top: 1.6rem; }
  .download-meta { font-size: .7rem; }
  .input-recording figcaption { font-size: .7rem; }
  .recording-details { text-align: left; }
  .section { padding-block: 3.3rem; }
  .section-heading { display: block; margin-bottom: 2rem; }
  .section-heading > p { margin-top: 1rem; max-width: none; }
  .section-heading > .text-link { margin-top: .7rem; }
  .input-columns { grid-template-columns: 1fr; gap: 2.5rem; }
  .input-copy { margin-bottom: 1.2rem; }
  .screenshot-stage { min-height: 10.5rem; padding: 1.2rem; }
  .learning-note { grid-template-columns: 1fr; gap: 1rem; margin-top: 2.5rem; padding-top: 2rem; }
  .learning-note h3 { max-width: none; }
  .learning-note .text-link { margin: .3rem 0 0; }
  .feature-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .feature-grid article { display: grid; grid-template-columns: 1.6rem 1fr; column-gap: .8rem; }
  .feature-index { grid-row: 1 / 4; margin-top: .45rem; }
  .feature-grid h3, .feature-grid p, .feature-grid a { grid-column: 2; }
  .feature-grid a { margin-top: .4rem; }
  .theme-gallery { grid-template-columns: 1fr; }
  .theme-gallery.is-interactive .theme-card { grid-template-columns: 1fr; gap: 1.5rem; padding: 1.5rem 1.2rem; }
  .theme-gallery.is-interactive .theme-card figcaption { flex-direction: row; align-items: baseline; }
  .theme-gallery.is-interactive .theme-card h3 { font-size: 1rem; }
  .theme-card figcaption { margin-bottom: 1.5rem; }
  .everyday { grid-template-columns: 1fr; gap: 2.5rem; }
  .guide-callout { flex-direction: column; align-items: flex-start; padding: 1.7rem; gap: 1.5rem; margin-bottom: 3.3rem; }
  .guide-callout h2 { font-size: 1.4rem; }
  .install-section { padding-block: 3.3rem 2rem; }
  .install-steps { grid-template-columns: 1fr; gap: 1.7rem; }
  .install-steps li { display: grid; grid-template-columns: 1.8rem 1fr; gap: .4rem .9rem; }
  .install-steps p { grid-column: 2; margin-top: 0; }
  .step-number { margin: 0; }
  .install-help { grid-template-columns: 1fr; gap: .4rem; }
  .site-footer { align-items: flex-start; flex-direction: column; gap: 1.3rem; }
  .footer-links { justify-content: flex-start; }
  .footer-links > span { text-align: left; }
  .guide-intro { padding-block: 2rem 2.5rem; }
  .guide-intro h1 { font-size: 2.55rem; }
  .guide-lead { font-size: .95rem; }
  .quick-links { grid-template-columns: 1fr; gap: .5rem; margin-top: 1.5rem; }
  .quick-links a { font-size: .8rem; }
  .settings-entry { grid-template-columns: 1fr; gap: .35rem; padding: 1.1rem; margin-top: 1.25rem; }
  .settings-entry small { grid-column: 1; }
  .guide-section { padding-block: 2.3rem; }
  .chapter-heading h2 { font-size: 1.55rem; }
  .steps > li { padding-left: 2.15rem; }
  .note { padding: 1rem 1.1rem; }
  .mode-cards { grid-template-columns: 1fr; gap: .75rem; }
  .mode-cards article { display: grid; grid-template-columns: 2.6rem 1fr; gap: .25rem 1rem; }
  .mode-badge { grid-row: 1 / 3; }
  .mode-cards h3 { margin: 0; }
  .mode-cards p { grid-column: 2; }
  .option-list > div { grid-template-columns: 1fr; gap: .5rem; }
  .guide-figure .screenshot-stage { padding: 1.25rem 1rem .5rem; }
  .guide-figure figcaption { padding: .75rem 1rem 1rem; }
  .settings-figure figcaption { padding-inline: 0; }
  .lookup-examples { gap: .65rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (prefers-reduced-transparency: reduce) { .site-header { background: var(--bg); backdrop-filter: none; } }
@media (prefers-contrast: more) { :root { --muted: var(--ink); --line: var(--ink); } .site-header { background: var(--bg); backdrop-filter: none; } }

.lexicon-section, .mixed-section { border-top: 1px solid var(--line); }
.lexicon-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem; }
.lexicon-grid p { color: var(--muted); font-size: .95rem; margin-top: .8rem; }
.lexicon-section > .gallery-source { margin-top: 2rem; }
.mixed-section .text-link { margin-top: 1.2rem; }
.gif-toggle { border: 0; background: none; padding: 0; color: var(--muted); font-size: .75rem; text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 600px) { .lexicon-grid { grid-template-columns: 1fr; gap: 1.7rem; } }