:root {
  color-scheme: dark;
  --ink: #f3f0e8;
  --muted: #a9aaa5;
  --dim: #747873;
  --canvas: #0c0e0f;
  --surface: #131617;
  --raised: #1a1e1f;
  --line: #303536;
  --acid: #c8ff3d;
  --acid-ink: #111507;
  --blue: #88b7ff;
  --radius: 18px;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 8%, rgba(136, 183, 255, 0.09), transparent 28rem),
    var(--canvas);
  font-family: var(--sans);
  line-height: 1.5;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  color: var(--acid-ink);
  background: var(--acid);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

.site-header, main, footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.site-header {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 750; }
.brand img { border-radius: 10px; }
.site-header nav { display: flex; align-items: center; gap: 28px; }
.site-header nav a, footer a { color: var(--muted); text-decoration: none; }
.site-header nav a { display: inline-flex; min-height: 44px; align-items: center; }
.site-header nav a:hover, footer a:hover { color: var(--ink); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(480px, 1.1fr);
  gap: clamp(40px, 6vw, 84px);
  align-items: center;
  min-height: 680px;
  padding-block: 72px;
}
.eyebrow {
  margin: 0 0 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}
.eyebrow span { display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 5px rgba(200, 255, 61, 0.1); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 24px; font-size: clamp(3.1rem, 6vw, 5.7rem); line-height: 0.95; letter-spacing: -0.065em; }
h1 em { color: var(--acid); font-style: normal; }
.lede { max-width: 610px; margin-bottom: 10px; color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.2rem); }
.lede-zh { margin-bottom: 28px; color: var(--dim); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button, .copy-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 20px;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}
.button.primary { border-color: var(--acid); color: var(--acid-ink); background: var(--acid); }
.button.secondary { background: var(--surface); }
.button:hover, .copy-button:hover { filter: brightness(1.08); }
.trust-list { display: flex; flex-wrap: wrap; gap: 22px; margin: 28px 0 0; padding: 0; color: var(--dim); font-family: var(--mono); font-size: 0.72rem; list-style: none; }
.trust-list li::before { content: "✓"; margin-right: 7px; color: var(--acid); }

.desktop-preview {
  position: relative;
  min-height: 470px;
  border: 1px solid #3d4344;
  border-radius: 26px;
  overflow: hidden;
  background: linear-gradient(145deg, #182325, #0d1112 64%);
  box-shadow: 0 36px 80px rgba(0, 0, 0, 0.38);
}
.desktop-preview::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 44px 44px; }
.preview-bar { position: relative; z-index: 2; display: flex; height: 48px; align-items: center; gap: 10px; border-bottom: 1px solid var(--line); padding: 0 16px; color: var(--muted); font-size: 0.72rem; }
.preview-mark { width: 8px; height: 8px; border-radius: 50%; background: var(--acid); }
.preview-time { margin-left: auto; font-family: var(--mono); }
.preview-grid { position: absolute; z-index: 1; top: 76px; left: 20px; display: grid; grid-template-columns: repeat(3, 82px); gap: 22px 12px; }
.preview-app { display: grid; justify-items: center; gap: 7px; color: #b8bcba; font-size: 0.63rem; }
.preview-app i { display: grid; width: 48px; height: 48px; place-items: center; border: 1px solid #465052; border-radius: 14px; color: var(--ink); font-family: var(--mono); font-size: 0.72rem; font-style: normal; background: rgba(28, 36, 38, .88); }
.preview-app.weather i { color: var(--acid-ink); background: var(--acid); }
.preview-window { position: absolute; z-index: 2; right: 20px; bottom: 72px; width: min(340px, 58%); min-height: 224px; border: 1px solid #464c4d; border-radius: var(--radius); padding: 24px; background: rgba(20, 24, 25, .94); box-shadow: 0 24px 40px rgba(0,0,0,.34); }
.preview-window > span { color: var(--acid); font-family: var(--mono); font-size: .62rem; letter-spacing: .12em; }
.preview-window > strong { display: block; margin: 38px 0 22px; font-size: 1.35rem; line-height: 1.1; }
.preview-window div { display: grid; grid-template-columns: 1fr .7fr .45fr; gap: 7px; }
.preview-window b { height: 8px; border-radius: 999px; background: #3b4142; }
.preview-dock { position: absolute; z-index: 3; right: 50%; bottom: 18px; display: flex; gap: 8px; border: 1px solid #3a4041; border-radius: 15px; padding: 8px; background: rgba(8,10,11,.82); transform: translateX(50%); }
.preview-dock i { width: 28px; height: 28px; border-radius: 8px; background: #323839; }
.preview-dock i:first-child { background: var(--acid); }

.facts { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.facts div { display: grid; gap: 3px; padding: 28px 26px; }
.facts div + div { border-left: 1px solid var(--line); }
.facts strong { color: var(--acid); font-family: var(--mono); font-size: 1.8rem; }
.facts span { color: var(--muted); font-size: .78rem; }

.feature-section { padding-block: 112px; }
.section-heading { display: grid; grid-template-columns: .7fr 1.3fr; gap: 40px; align-items: start; margin-bottom: 54px; }
h2 { max-width: 780px; margin-bottom: 0; font-size: clamp(2.2rem, 5vw, 4.4rem); line-height: 1; letter-spacing: -.055em; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature-grid article { min-height: 260px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 32px; background: linear-gradient(145deg, rgba(255,255,255,.018), transparent); }
.feature-number { color: var(--acid); font-family: var(--mono); font-size: .68rem; }
.feature-grid h3 { margin: 72px 0 10px; font-size: 1.35rem; }
.feature-grid p { max-width: 52ch; margin-bottom: 0; color: var(--muted); }
code { font-family: var(--mono); }

.install-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; border-radius: 28px; padding: clamp(30px, 6vw, 72px); background: var(--acid); color: var(--acid-ink); }
.install-section .eyebrow { color: #3c4919; }
.install-section > div > p:last-child { max-width: 54ch; margin: 24px 0 0; color: #354019; }
.command-card { min-width: 0; border: 1px solid #3d481f; border-radius: var(--radius); overflow: hidden; color: var(--ink); background: #0e1112; box-shadow: 0 28px 55px rgba(47, 57, 17, .24); }
.command-header { display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); padding: 13px 18px; color: var(--dim); font-family: var(--mono); font-size: .67rem; }
.command-card pre { margin: 0; padding: 28px 20px; overflow-x: auto; color: #e5eadc; font-size: .78rem; line-height: 1.7; white-space: pre-wrap; overflow-wrap: anywhere; }
.copy-button { margin: 0 18px 18px; color: var(--acid-ink); background: var(--acid); }
.copy-status { min-height: 1.5em; margin: -6px 18px 14px; color: var(--muted); font-size: .74rem; }

.boundary { display: grid; justify-items: center; padding-block: 120px; text-align: center; }
.boundary h2 { max-width: 900px; }
.boundary > a { display: inline-flex; min-height: 48px; align-items: center; gap: 8px; margin-top: 32px; color: var(--acid); text-underline-offset: 5px; }
footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; border-top: 1px solid var(--line); padding-block: 34px; color: var(--muted); font-size: .78rem; }
footer p { margin: 0; text-align: center; }
footer > div:last-child { display: flex; justify-content: flex-end; gap: 22px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .desktop-preview { min-height: 430px; }
  .facts { grid-template-columns: repeat(2, 1fr); }
  .facts div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .facts div:nth-child(4) { border-top: 1px solid var(--line); }
  .section-heading, .install-section { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; justify-items: center; }
  footer > div:last-child { justify-content: center; }
}

@media (max-width: 620px) {
  .site-header, main, footer { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 72px; }
  .site-header nav { gap: 14px; }
  .site-header nav a:first-child { display: none; }
  .hero { gap: 42px; padding-block: 52px; }
  h1 { font-size: clamp(2.8rem, 15vw, 4.2rem); }
  .hero-actions { display: grid; }
  .button { width: 100%; }
  .desktop-preview { min-height: 390px; border-radius: 20px; }
  .preview-grid { grid-template-columns: repeat(2, 72px); }
  .preview-window { right: 14px; bottom: 67px; width: 62%; padding: 18px; }
  .facts div { padding: 22px 18px; }
  .facts div:nth-child(odd) { border-left: 0; }
  .feature-section { padding-block: 80px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article { min-height: 230px; padding: 26px; }
  .install-section { gap: 38px; border-radius: 20px; }
  .boundary { padding-block: 84px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}