:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
    "Helvetica Neue", sans-serif;
  --bg: #f5f5f7;
  --ink: rgba(0, 0, 0, .85);
  --muted: rgba(60, 60, 67, .64);
  --hairline: rgba(60, 60, 67, .16);
  --stroke: rgba(0, 0, 0, .12);
  --rim: rgba(0, 0, 0, .16);
  --surface: #ffffff;
  --surface-solid: #ffffff;
  --surface-hover: rgba(0, 0, 0, .05);
  --fill: rgba(118, 118, 128, .12);
  --accent: #007aff;
  --accent-ink: #fff;
  --switch-on: #34c759;
  --warning: #c93400;
  --hero-ink: rgba(255, 255, 255, .92);
  --hero-muted: rgba(235, 235, 245, .62);
  --max: 1080px;
  --radius: 12px;
  --card: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.45;
  letter-spacing: -.01em;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button, .btn { font: inherit; }

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  z-index: 20;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--accent-ink);
  background: var(--accent);
}
.skip:focus { top: 12px; }

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  color: var(--hero-ink);
  background:
    radial-gradient(ellipse at 28% 0%, #4f8b96 0%, transparent 42%),
    linear-gradient(165deg, #16343c, #0b1f28 58%, #142c38);
  color-scheme: dark;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 0 8px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font-weight: 650;
  letter-spacing: -.02em;
  text-decoration: none;
}
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.brand:hover { text-decoration: none; opacity: .88; }
.nav-links {
  display: flex;
  gap: 18px;
  margin-left: 8px;
  font-size: 13px;
  font-weight: 510;
}
.nav-links a { color: var(--hero-muted); text-decoration: none; }
.nav-links a:hover { color: var(--hero-ink); }
.nav-end {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.language-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 2px;
  border-radius: 9px;
  background: rgba(120, 120, 128, .32);
}
.language-row a {
  height: 28px;
  padding: 0 10px;
  border-radius: 7px;
  color: var(--hero-ink);
  background: transparent;
  font-size: 13px;
  font-weight: 500;
  line-height: 28px;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
}
.language-row a.selected {
  background: #3a3a3c;
  box-shadow: 0 0.5px 1px rgba(0, 0, 0, .28);
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  border: 0;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.02em;
  text-decoration: none;
  cursor: pointer;
  transition: filter 120ms ease, transform 120ms ease, background 180ms ease;
}
.btn:hover { text-decoration: none; filter: brightness(1.06); }
.btn:active { transform: translateY(0.5px); filter: brightness(.96); }
.btn-primary { color: var(--accent-ink); background: var(--accent); }
.btn-dark {
  color: #f5f5f7;
  background: #3a3a3c;
}
.btn-ghost {
  color: var(--hero-ink);
  background: rgba(255, 255, 255, .08);
  box-shadow: inset 0 0 0 0.5px rgba(255, 255, 255, .12);
}
.btn-lg { height: 44px; padding: 0 18px; border-radius: 10px; }

.hero-copy { padding: 48px 0 28px; text-align: center; }
.kicker {
  margin: 0 0 10px;
  color: #7ec8d4;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
html[lang="zh-Hans"] .kicker {
  letter-spacing: -.01em;
  text-transform: none;
}
.hero-copy h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.08;
  font-weight: 650;
  letter-spacing: -.028em;
}
.lede {
  max-width: 640px;
  margin: 14px auto 0;
  color: var(--hero-muted);
  font-size: 18px;
  line-height: 1.4;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}
.fine {
  max-width: 52rem;
  margin: 12px auto 0;
  color: var(--hero-muted);
  font-size: 13px;
}
.fine code, .get code, td code {
  overflow-wrap: anywhere;
}
.brand-name { white-space: nowrap; }

.hero-stage { padding: 8px 0 56px; }
.shots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
  max-width: 760px;
  margin: 0 auto;
}
.shot {
  margin: 0;
}
.shot img {
  width: 100%;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, .38));
}
.shot figcaption {
  margin-top: 10px;
  min-height: 2.7em;
  color: var(--hero-muted);
  font-size: 13px;
  line-height: 1.35;
  text-align: center;
}

.celestial {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin-top: 28px;
}
.coin {
  width: 88px;
  height: 88px;
  padding: 8px;
  border-radius: 50%;
}
.coin.sun {
  background: #ffffff;
  box-shadow:
    inset 0 0 0 0.5px rgba(60, 60, 67, .16),
    0 10px 24px rgba(0, 0, 0, .06);
}
.coin.moon {
  background: #2c2c2e;
  box-shadow:
    inset 0 0 0 0.5px rgba(84, 84, 88, .55),
    0 12px 28px rgba(0, 0, 0, .28);
}
.coin img { width: 100%; height: 100%; object-fit: contain; }

.section { padding: 72px 0; }
.section h2 {
  margin: 0 0 8px;
  font-size: 32px;
  line-height: 1.15;
  font-weight: 650;
  letter-spacing: -.028em;
  text-align: center;
}
.section-lead {
  max-width: 560px;
  margin: 0 auto 32px;
  color: var(--muted);
  text-align: center;
  font-size: 16px;
}

.quote {
  max-width: 720px;
  margin: 0 auto;
  padding: 22px 24px;
  border: 0.5px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 20px;
  font-weight: 590;
  letter-spacing: -.02em;
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card {
  overflow: hidden;
  border: 0.5px solid var(--hairline);
  border-radius: var(--card);
  background: var(--surface);
}
.index {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  color: #fff;
  background: var(--accent);
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.feature {
  padding: 18px 16px 16px;
}
.feature .index { margin-bottom: 10px; }
.feature h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -.02em;
}
.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  align-items: start;
}
.gallery figure {
  margin: 0;
  padding: 10px 10px 12px;
  border: 0.5px solid var(--hairline);
  border-radius: var(--card);
  background: var(--surface);
}
.gallery img { width: 100%; }
.gallery figcaption {
  margin-top: 8px;
  min-height: 2.6em;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.3;
  text-align: center;
}

.help-section {
  max-width: 640px;
  margin: 0 auto 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 590;
  letter-spacing: .04em;
  text-transform: uppercase;
}
html[lang="zh-Hans"] .help-section {
  font-size: 12px;
  font-weight: 510;
  letter-spacing: -.01em;
  text-transform: none;
}
.steps { max-width: 640px; margin: 0 auto 18px; }
.help-item {
  position: relative;
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
}
.help-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 48px;
  right: 0;
  bottom: 0;
  height: 0.5px;
  background: var(--hairline);
}
.help-item h3 { margin: 0 0 4px; font-size: 15px; font-weight: 650; }
.help-item p { margin: 0; color: var(--muted); font-size: 14px; }
kbd, .kbd {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 6px;
  background: var(--fill);
  font: inherit;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.cli {
  color: rgba(255, 255, 255, .92);
  background: #1c1c1e;
  color-scheme: dark;
}
.cli h2 { color: inherit; }
.cli .section-lead { color: rgba(235, 235, 245, .62); }
.terminal {
  max-width: 680px;
  margin: 0 auto;
  padding: 18px 20px;
  border: 0.5px solid rgba(255, 255, 255, .08);
  border-radius: var(--card);
  background: #2c2c2e;
  overflow-x: auto;
}
.terminal pre {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13.5px;
  line-height: 1.55;
}
.terminal .cmt { color: rgba(235, 235, 245, .46); }
.copy-row { display: flex; justify-content: center; margin-top: 14px; }

.table-wrap {
  overflow-x: auto;
  border: 0.5px solid var(--hairline);
  border-radius: var(--card);
  background: var(--surface);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
caption {
  padding: 12px 14px 0;
  color: var(--muted);
  font-size: 13px;
  text-align: left;
}
th, td {
  padding: 10px 14px;
  border-bottom: 0.5px solid var(--hairline);
  text-align: left;
  vertical-align: top;
}
th { font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td.yes { color: var(--switch-on); font-weight: 600; }
td.no { color: var(--muted); }

.faq { max-width: 720px; margin: 0 auto; }
details {
  border: 0.5px solid var(--hairline);
  border-bottom: 0;
  background: var(--surface);
}
details:first-child { border-radius: var(--card) var(--card) 0 0; }
details:last-child {
  border-bottom: 0.5px solid var(--hairline);
  border-radius: 0 0 var(--card) var(--card);
}
summary {
  padding: 14px 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
summary::-webkit-details-marker { display: none; }
details p {
  margin: 0;
  padding: 0 16px 14px;
  color: var(--muted);
  font-size: 14px;
}

.get {
  text-align: center;
}
.get .card-block {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 36px;
  border: 0.5px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
}
.get ol {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin: 20px auto 0;
  padding: 0 0.4em 0 1.7em;
  color: var(--muted);
  text-align: left;
}
.release-ver {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -.02em;
}
.release-ver a {
  color: inherit;
  text-decoration: none;
}
.release-ver a:hover { text-decoration: underline; }

.site-footer {
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 13px;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: space-between;
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--ink); }

.btn:focus-visible,
.language-row a:focus-visible,
.nav-links a:focus-visible,
.brand:focus-visible,
summary:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(0, 122, 255, .48);
  outline-offset: 2px;
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .grid { grid-template-columns: 1fr; }
  #uses .grid { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .shots { grid-template-columns: 1fr; max-width: 360px; }
}

@media (max-width: 560px) {
  .wrap { width: min(var(--max), calc(100% - 24px)); }
  .gallery { grid-template-columns: 1fr; }
  #uses .grid { grid-template-columns: 1fr; }
  .nav { gap: 8px; }
  .brand-name { display: none; }
  .language-row a { padding: 0 8px; font-size: 12px; }
  .nav-end .btn { height: 32px; padding: 0 10px; font-size: 13px; }
  .hero-copy { padding-top: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}