:root {
  color-scheme: light;
  --paper: #eef3f7;
  --white: #f7fafc;
  --ink: #0b141c;
  --muted: #5a6876;
  --soft-muted: #7a8896;
  --line: #c8d3de;
  --soft-line: #d9e2ea;
  --panel: #e3ebf2;
  --charcoal: #081018;
  --charcoal-soft: #101a24;
  --dark-ink: #f2f7fb;
  --dark-line: #243140;
  --dark-muted: #9eb0c0;
  --accent: #0d8fa8;
  --accent-hover: #0a7a90;
  --signal: #2ec4b6;
  --green: #2f9e6d;
  --cta-bg: #0b141c;
  --cta-text: #f7fafc;
  --cta-hover: #00070d;
  --nav-text: #4d5c6b;
  --hero-copy: #425463;
  --section-copy: #4f5e6d;
  --section-label: #607080;
  --strong-line: #b7c4d1;
  --section-number: #708090;
  --section-text: #556574;
  --image-border: #b9c7d4;
  --image-surface: #e8eef4;
  --image-divider: #cdd8e3;
  --image-caption: #627282;
  --gallery-border: #b6c4d1;
  --gallery-surface: #edf2f6;
  --gallery-divider: #c7d3de;
  --gallery-header: #f3f7fa;
  --gallery-copy: #516170;
  --workflow-line: #b8c5d2;
  --workflow-number: #6d7e8e;
  --workflow-copy: #627282;
  --download-link: #455564;
  --download-asset: #5a6876;
  --download-hover: #e8eef4;
  --gallery-shadow: 0 28px 70px rgba(12, 32, 48, 0.12);
  --card-shadow: 0 24px 64px rgba(12, 32, 48, 0.1);
  --hero-field: #dce7f0;
  --hero-ink: #071018;
  --hero-muted: #4a5c6c;
  --hero-accent: #0d8fa8;
  --particle-teal: #168c89;
  --particle-blue: #3974b5;
  --particle-cyan: #148ba8;
  --hero-grid: rgba(13, 50, 72, 0.08);
  --hero-aurora-a: rgba(46, 196, 182, 0.28);
  --hero-aurora-b: rgba(13, 143, 168, 0.22);
  --hero-aurora-c: rgba(90, 140, 210, 0.16);
  --hero-window-border: rgba(255, 255, 255, 0.72);
  --hero-window-shadow: 0 40px 80px rgba(8, 30, 48, 0.22), 0 12px 28px rgba(8, 30, 48, 0.12);
  --hero-icon-shadow: 0 18px 36px rgba(13, 143, 168, 0.22);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --page-width: 1296px;
  --font-sans: "Segoe UI Variable", "Segoe UI", "Noto Sans SC", "Microsoft YaHei UI", sans-serif;
  --font-mono: "Cascadia Code", "Fira Code", Consolas, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #070c12;
  --white: #0e151d;
  --ink: #e8f0f6;
  --muted: #9aadb8;
  --soft-muted: #7a8f9d;
  --line: #243240;
  --soft-line: #1a2530;
  --panel: #0c131b;
  --charcoal: #05090e;
  --charcoal-soft: #0a1118;
  --dark-ink: #e8f0f6;
  --dark-line: #1e2c3a;
  --dark-muted: #8fa4b4;
  --accent: #3dcae0;
  --accent-hover: #5ad4e6;
  --signal: #5eead4;
  --green: #4db888;
  --cta-bg: #e8f0f6;
  --cta-text: #071018;
  --cta-hover: #ffffff;
  --nav-text: #a7bac8;
  --hero-copy: #b6c8d4;
  --section-copy: #a7bac8;
  --section-label: #7e93a3;
  --strong-line: #2a3a48;
  --section-number: #7e93a3;
  --section-text: #9aadb8;
  --image-border: #243240;
  --image-surface: #101820;
  --image-divider: #1e2c3a;
  --image-caption: #8fa4b4;
  --gallery-border: #243240;
  --gallery-surface: #101820;
  --gallery-divider: #243240;
  --gallery-header: #121b24;
  --gallery-copy: #a7bac8;
  --workflow-line: #2a3a48;
  --workflow-number: #7e93a3;
  --workflow-copy: #8fa4b4;
  --download-link: #b6c8d4;
  --download-asset: #9aadb8;
  --download-hover: #15202a;
  --gallery-shadow: 0 28px 70px rgba(0, 0, 0, 0.42);
  --card-shadow: 0 24px 64px rgba(0, 0, 0, 0.36);
  --hero-field: #050a10;
  --hero-ink: #eef5fa;
  --hero-muted: #a0b4c2;
  --hero-accent: #3dcae0;
  --particle-teal: #54e2ba;
  --particle-blue: #6d9fff;
  --particle-cyan: #72e4f5;
  --hero-grid: rgba(120, 190, 220, 0.07);
  --hero-aurora-a: rgba(46, 196, 182, 0.18);
  --hero-aurora-b: rgba(61, 202, 224, 0.14);
  --hero-aurora-c: rgba(80, 130, 190, 0.12);
  --hero-window-border: rgba(200, 230, 245, 0.14);
  --hero-window-shadow: 0 42px 90px rgba(0, 0, 0, 0.55), 0 14px 28px rgba(0, 0, 0, 0.35);
  --hero-icon-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
}

:root[data-theme="high-contrast"] {
  color-scheme: dark;
  --paper: #000000;
  --white: #000000;
  --ink: #ffffff;
  --muted: #ffffff;
  --soft-muted: #ffffff;
  --line: #ffffff;
  --soft-line: #ffffff;
  --panel: #000000;
  --charcoal: #000000;
  --charcoal-soft: #000000;
  --dark-ink: #ffffff;
  --dark-line: #ffffff;
  --dark-muted: #ffffff;
  --accent: #00ffff;
  --accent-hover: #ffff00;
  --signal: #ffff00;
  --green: #00ff00;
  --cta-bg: #ffffff;
  --cta-text: #000000;
  --cta-hover: #00ffff;
  --nav-text: #ffffff;
  --hero-copy: #ffffff;
  --section-copy: #ffffff;
  --section-label: #ffffff;
  --strong-line: #ffffff;
  --section-number: #ffffff;
  --section-text: #ffffff;
  --image-border: #ffffff;
  --image-surface: #000000;
  --image-divider: #ffffff;
  --image-caption: #ffffff;
  --gallery-border: #ffffff;
  --gallery-surface: #000000;
  --gallery-divider: #ffffff;
  --gallery-header: #000000;
  --gallery-copy: #ffffff;
  --workflow-line: #ffffff;
  --workflow-number: #ffffff;
  --workflow-copy: #ffffff;
  --download-link: #ffffff;
  --download-asset: #ffffff;
  --download-hover: #000000;
  --gallery-shadow: none;
  --card-shadow: none;
  --hero-field: #000000;
  --hero-ink: #ffffff;
  --hero-muted: #ffffff;
  --hero-accent: #00ffff;
  --hero-grid: rgba(255, 255, 255, 0.35);
  --hero-aurora-a: transparent;
  --hero-aurora-b: transparent;
  --hero-aurora-c: transparent;
  --hero-window-border: #ffffff;
  --hero-window-shadow: none;
  --hero-icon-shadow: none;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, color-mix(in srgb, var(--signal) 8%, transparent), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 50%),
    var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body,
button,
a {
  -webkit-tap-highlight-color: transparent;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
  font: inherit;
}

h1,
h2,
h3,
p,
figure,
dl,
dd,
ol {
  margin: 0;
}

h1,
h2,
h3 {
  font-weight: 620;
  letter-spacing: -0.045em;
}

::selection {
  color: var(--white);
  background: var(--accent);
}

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 42%, transparent);
  outline-offset: 3px;
}

.page-shell {
  width: min(var(--page-width), calc(100% - 64px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 700ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  backdrop-filter: blur(22px) saturate(140%);
}

.nav-shell {
  width: min(var(--page-width), calc(100% - 64px));
  min-height: 83px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 11px;
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.025em;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-cluster,
.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
}

.nav-cluster {
  justify-content: flex-end;
  gap: 34px;
}

.nav-links {
  gap: 28px;
}

.nav-links a {
  position: relative;
  color: var(--nav-text);
  font-size: 14px;
  font-weight: 520;
  white-space: nowrap;
  transition: color 160ms ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-actions {
  gap: 16px;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: color-mix(in srgb, var(--white) 52%, transparent);
}

.language-switch a {
  display: inline-grid;
  place-items: center;
  min-width: 32px;
  height: 28px;
  padding: 0 7px;
  border: 0;
  border-radius: 6px;
  color: var(--soft-muted);
  background: transparent;
  cursor: pointer;
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
}

.language-switch a[aria-current="page"] {
  color: var(--ink);
  background: var(--white);
  box-shadow: 0 1px 2px rgba(12, 32, 48, 0.08);
}

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--nav-text);
  background: color-mix(in srgb, var(--white) 52%, transparent);
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.theme-toggle:hover {
  color: var(--ink);
  border-color: color-mix(in srgb, var(--ink) 30%, var(--line));
  background: var(--white);
}

.theme-icon {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-icon-sun,
.theme-icon-contrast,
:root[data-theme="dark"] .theme-icon-moon {
  display: none;
}

:root[data-theme="dark"] .theme-icon-contrast,
:root[data-theme="high-contrast"] .theme-icon-sun {
  display: block;
}

:root[data-theme="high-contrast"] .theme-icon-moon,
:root[data-theme="high-contrast"] .theme-icon-contrast {
  display: none;
}

.theme-toggle:disabled {
  cursor: default;
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 14px;
  border: 1px solid var(--ink);
  border-radius: 9px;
  font-size: 13px;
  font-weight: 650;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

.github-link:hover {
  color: var(--cta-text);
  background: var(--ink);
  border-color: var(--ink);
}

.github-link svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

.menu-button {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--white);
}

.menu-button span {
  position: absolute;
  left: 11px;
  width: 16px;
  height: 1.5px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 160ms ease, top 160ms ease;
}

.menu-button span:first-child { top: 14px; }
.menu-button span:last-child { top: 23px; }

.section-index,
.showcase-label,
.pair-caption span,
.gallery-product-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ——— Hero: full-bleed atmospheric field ——— */

.hero {
  position: relative;
  overflow: clip;
  padding-top: 0;
  background: var(--hero-field);
}

.hero-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: -10%;
  background-image:
    linear-gradient(var(--hero-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 55% 40%, #000 20%, transparent 75%);
  opacity: 0.6;
}

.hero-aurora {
  position: absolute;
  inset: -20% -10%;
  background:
    radial-gradient(ellipse 42% 48% at 78% 18%, var(--hero-aurora-a), transparent 70%),
    radial-gradient(ellipse 38% 52% at 12% 78%, var(--hero-aurora-b), transparent 68%),
    radial-gradient(ellipse 30% 36% at 48% 92%, var(--hero-aurora-c), transparent 70%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  mask-image: linear-gradient(90deg, #0003, #0004 32%, #000 55%);
}

.hero[data-particle-state="hidden"] .hero-field {
  visibility: hidden;
}

.hero .hero-motion-controls {
  position: absolute;
  top: 22px;
  right: 32px;
  z-index: 2;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 16px;
  min-height: 44px;
  width: auto;
  margin: 0;
  color: var(--hero-muted);
  font-size: 12px;
}


.hero-motion-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--strong-line);
  border-radius: 6px;
  background: var(--hero-field);
  color: var(--hero-ink);
  font: inherit;
  cursor: pointer;
}

.hero-motion-toggle[hidden] { display: none; }
.hero-motion-toggle:hover { border-color: var(--hero-accent); }
.hero-motion-toggle:disabled {
  cursor: default;
  color: var(--hero-muted);
}
.hero-motion-toggle svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
}
.hero-motion-toggle[aria-pressed="true"] .motion-play,
.hero-motion-toggle[aria-pressed="false"] .motion-pause { display: none; }

@media (max-width: 600px) {
  .hero-particles { mask-image: linear-gradient(#0004 15%, #000 70%, #0000); }
  .hero .hero-motion-controls { top: 20px; right: 20px; }
}

.hero-field::before,
.hero-field::after {
  content: "";
  position: absolute;
  width: 28px;
  height: 28px;
  border-color: color-mix(in srgb, var(--hero-accent) 45%, transparent);
  border-style: solid;
  opacity: 0.7;
}

.hero-field::before {
  top: 28px;
  left: 28px;
  border-width: 1px 0 0 1px;
}

.hero-field::after {
  right: 28px;
  bottom: 28px;
  border-width: 0 1px 1px 0;
}

.hero-noise {
  position: absolute;
  inset: 0;
  opacity: 0.015;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

:root[data-theme="dark"] .hero-noise {
  opacity: 0.025;
  mix-blend-mode: screen;
}

.hero-stage {
  position: relative;
  z-index: 1;
  isolation: isolate;
  min-height: clamp(560px, 52vw, 680px);
  padding-top: 48px;
}

.hero-stage > * {
  position: relative;
}

.hero-message {
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 44%;
  min-height: inherit;
  padding: 56px 0 58px 0;
  color: var(--hero-ink);
  animation: hero-rise 900ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-app-icon {
  width: clamp(78px, 7vw, 96px);
  height: clamp(78px, 7vw, 96px);
  margin-bottom: 34px;
  border-radius: 24%;
  box-shadow: var(--hero-icon-shadow);
}

.hero h1 {
  max-width: none;
  font-size: clamp(68px, 6.2vw, 92px);
  font-weight: 650;
  line-height: 0.92;
  letter-spacing: -0.072em;
  color: var(--hero-ink);
}

.positioning-lead h2 {
  display: flex;
  flex-wrap: wrap;
  column-gap: 0.2em;
}

.positioning-lead h2 > span {
  display: inline-block;
  white-space: nowrap;
}

.section-heading h2,
.quick-start-copy h2,
.gallery-copy h2,
.ai-build-copy h2,
.download-copy h2 {
  text-wrap: balance;
}

.hero-tagline {
  max-width: 590px;
  margin-top: 28px;
  color: var(--hero-muted);
  font-size: clamp(22px, 2.05vw, 30px);
  font-weight: 430;
  line-height: 1.28;
  letter-spacing: -0.035em;
}

.hero-value-detail {
  max-width: 560px;
  margin-top: 16px;
  color: var(--hero-muted);
  font-size: clamp(14px, 1.2vw, 17px);
  line-height: 1.65;
}

.hero-techline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin-top: 21px;
  color: var(--hero-muted);
  font-size: clamp(15px, 1.35vw, 19px);
  line-height: 1.4;
}

.hero-techline strong {
  color: var(--hero-accent);
  font-weight: 650;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
}

.hero-action-note {
  margin-top: 12px;
  color: var(--hero-muted);
  font-size: 13px;
  font-weight: 570;
  letter-spacing: 0.015em;
}

.hero-python-callout {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  width: fit-content;
  max-width: 100%;
  gap: 8px 10px;
  margin-top: 18px;
  padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--hero-accent) 34%, transparent);
  border-radius: 10px;
  color: var(--hero-muted);
  background: color-mix(in srgb, var(--white) 42%, transparent);
  backdrop-filter: blur(8px);
  font-size: 12px;
  line-height: 1.45;
}

.hero-python-label {
  color: var(--hero-accent);
  font-weight: 700;
}

.hero-python-copy {
  flex-basis: 100%;
}

.hero-python-install,
.hero-python-gallery {
  color: var(--hero-ink);
  font-weight: 650;
}

.hero-python-install {
  padding: 4px 7px;
  border: 1px solid color-mix(in srgb, var(--hero-ink) 18%, transparent);
  border-radius: 6px;
  background: color-mix(in srgb, var(--white) 58%, transparent);
}

.hero-python-install code {
  font-family: var(--font-mono);
  font-size: 11px;
}

.hero-python-gallery {
  border-bottom: 1px solid color-mix(in srgb, var(--hero-ink) 36%, transparent);
}

.hero-python-install:hover,
.hero-python-gallery:hover {
  color: var(--hero-accent);
  border-color: var(--hero-accent);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 48px;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 650;
  line-height: 1;
  white-space: nowrap;
  transition: transform 160ms ease, color 160ms ease, background 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button svg,
.text-link svg,
.download-recommended svg,
.release-row svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button-primary {
  color: var(--cta-text);
  background: var(--cta-bg);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 0%, transparent);
}

.button-primary:hover {
  background: var(--cta-hover);
  box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 28%, transparent);
}

.button-quiet {
  border-color: color-mix(in srgb, var(--hero-ink) 22%, transparent);
  background: color-mix(in srgb, var(--white) 35%, transparent);
  backdrop-filter: blur(8px);
}

.button-quiet:hover {
  border-color: color-mix(in srgb, var(--hero-ink) 40%, transparent);
  background: color-mix(in srgb, var(--white) 70%, transparent);
}

.hero-product {
  position: absolute;
  z-index: 1;
  top: 50%;
  right: -1%;
  width: 56%;
  margin: 0;
  perspective: 1600px;
  transform: translateY(-49%);
  animation: hero-float-in 1100ms cubic-bezier(0.22, 1, 0.36, 1) 120ms both;
}

.hero-product::before {
  content: "";
  position: absolute;
  inset: 8% 6% -6% 10%;
  z-index: -1;
  border-radius: 50%;
  background: color-mix(in srgb, var(--hero-aurora-b) 50%, transparent);
  filter: blur(48px);
  opacity: 0.7;
}

.hero-window {
  position: relative;
  display: block;
  overflow: hidden;
  border: clamp(3px, 0.4vw, 5px) solid var(--hero-window-border);
  border-radius: clamp(14px, 1.6vw, 22px);
  background: var(--white);
  box-shadow: var(--hero-window-shadow);
  transform: rotateY(-5deg) rotateZ(0.6deg) translateZ(0);
  transform-origin: 88% 50%;
  transition: transform 520ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 520ms ease;
}

.hero-window img {
  width: 100%;
  height: auto;
  border-radius: calc(clamp(14px, 1.6vw, 22px) - 5px);
  filter: saturate(1.02) contrast(1.02);
}

.hero-window::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    125deg,
    rgba(255, 255, 255, 0.18),
    transparent 32%,
    transparent 68%,
    color-mix(in srgb, var(--accent) 8%, transparent)
  );
  pointer-events: none;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
}

@media (hover: hover) and (pointer: fine) {
  .hero:hover .hero-window {
    box-shadow: 0 48px 90px rgba(8, 30, 48, 0.28), 0 16px 32px rgba(8, 30, 48, 0.14);
    transform: translateY(-8px) rotateY(-2deg) rotateZ(0.2deg);
  }

  :root[data-theme="dark"] .hero:hover .hero-window {
    box-shadow: 0 48px 90px rgba(0, 0, 0, 0.6), 0 16px 32px rgba(0, 0, 0, 0.4);
  }
}

@keyframes hero-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes hero-float-in {
  from {
    opacity: 0;
    transform: translateY(calc(-49% + 28px));
  }
  to {
    opacity: 1;
    transform: translateY(-49%);
  }
}

.spec-strip {
  position: relative;
  z-index: 1;
  padding-block: 42px 88px;
}

.spec-strip dl {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid color-mix(in srgb, var(--hero-ink) 14%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--hero-ink) 14%, transparent);
}

.spec-strip dl > div {
  padding: 22px 24px 24px;
  border-left: 1px solid color-mix(in srgb, var(--hero-ink) 14%, transparent);
}

.spec-strip dl > div:first-child {
  border-left: 0;
  padding-left: 0;
}

.spec-strip dt {
  margin-bottom: 8px;
  color: var(--hero-muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spec-strip dd {
  color: var(--hero-ink);
  font-size: 17px;
  font-weight: 620;
  letter-spacing: -0.025em;
}

/* ——— Conversion paths: one clear next step per visitor ——— */

.path-section {
  padding-block: 78px;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.path-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.58fr);
  align-items: start;
  gap: 86px;
}

.path-heading h2 {
  max-width: 480px;
  font-size: clamp(34px, 3.3vw, 50px);
  line-height: 1.03;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.path-heading > p:last-child {
  max-width: 460px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.path-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.path-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 260px;
  flex-direction: column;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  background: var(--white);
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.path-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: transparent;
  transition: background 180ms ease;
}

.path-card-primary {
  background: color-mix(in srgb, var(--panel) 54%, var(--white));
}

.path-card-primary .path-number {
  color: var(--accent);
}

.path-card:hover,
.path-card:focus-visible {
  z-index: 1;
  color: var(--ink);
  background: color-mix(in srgb, var(--panel) 72%, var(--white));
  transform: translateY(-3px);
}

.path-card:hover::before,
.path-card:focus-visible::before,
.path-card-primary::before {
  background: var(--accent);
}

.path-number {
  color: var(--soft-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.path-card strong {
  margin-top: 42px;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.path-card p {
  margin-top: 13px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.path-action {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 28px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

/* ——— Build with AI: verified application outcome ——— */

.ai-build-section {
  position: relative;
  overflow: hidden;
  padding-block: 126px;
  color: var(--dark-ink);
  background:
    radial-gradient(ellipse 54% 64% at 88% 12%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 68%),
    radial-gradient(ellipse 42% 48% at 6% 92%, color-mix(in srgb, var(--signal) 10%, transparent), transparent 64%),
    var(--charcoal);
}

.ai-build-section::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--dark-line) 42%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--dark-line) 42%, transparent) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(110deg, transparent 8%, #000 48%, transparent 94%);
  opacity: 0.32;
  content: "";
  pointer-events: none;
}

.ai-build-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(330px, 0.74fr) minmax(0, 1.26fr);
  align-items: center;
  gap: 96px;
}

.ai-build-copy .section-index {
  color: #7ecfe0;
}

.ai-build-copy h2 {
  color: var(--dark-ink);
  font-size: clamp(44px, 4vw, 62px);
  line-height: 1.04;
}

.ai-build-points {
  margin-top: 34px;
  padding: 0;
  list-style: none;
}

.ai-build-points li {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-top: 1px solid var(--dark-line);
}

.ai-build-points li:last-child {
  border-bottom: 1px solid var(--dark-line);
}

.ai-build-points strong {
  color: #7ecfe0;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ai-build-points span {
  color: var(--dark-ink);
  font-size: 13px;
  line-height: 1.55;
}

.ai-build-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  margin-top: 34px;
}

.ai-build-guide {
  padding-bottom: 4px;
  border-bottom: 1px solid color-mix(in srgb, #7ecfe0 52%, transparent);
  color: #cdeef3;
  font-size: 14px;
  font-weight: 650;
  transition: color 160ms ease, border-color 160ms ease;
}

.ai-build-guide:hover {
  color: #ffffff;
  border-color: #ffffff;
}

.ai-build-case {
  overflow: hidden;
  margin: 0;
  border: 1px solid color-mix(in srgb, #7ecfe0 28%, var(--dark-line));
  border-radius: var(--radius-md);
  background: color-mix(in srgb, #111820 88%, transparent);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.34);
}

.ai-build-case-header {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--dark-line);
  background: color-mix(in srgb, #1a2731 82%, transparent);
}

.ai-build-case-header > div {
  display: grid;
  gap: 3px;
}

.ai-build-case-header span {
  color: #8fa4b4;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ai-build-case-header strong {
  color: #f3f8fb;
  font-size: 14px;
  font-weight: 650;
}

.ai-build-case-media {
  overflow: hidden;
  aspect-ratio: 1120 / 760;
  background: #e7e7e7;
}

.ai-build-case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.02);
  transition: transform 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

@media (hover: hover) and (pointer: fine) {
  .ai-build-case:hover .ai-build-case-media img {
    transform: scale(1.012);
  }
}

.ai-build-case figcaption {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 8px 28px;
  padding: 20px 22px 22px;
  border-top: 1px solid var(--dark-line);
}

.ai-build-case figcaption > p:first-child {
  max-width: 620px;
  color: #d8e3e9;
  font-size: 13px;
  line-height: 1.65;
}

.ai-build-disclaimer {
  grid-column: 1;
  color: #8fa4b4;
  font-size: 10px;
  line-height: 1.5;
}

.ai-build-case figcaption a {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding-bottom: 3px;
  border-bottom: 1px solid color-mix(in srgb, #7ecfe0 52%, transparent);
  color: #cdeef3;
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.ai-build-case figcaption a:hover {
  color: #ffffff;
  border-color: #ffffff;
}

.positioning-section {
  position: relative;
  padding-block: 126px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel) 0%, transparent), var(--panel) 12%),
    var(--panel);
  overflow: hidden;
}

.positioning-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.35;
}

.positioning-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 128px;
}

.section-index {
  margin-bottom: 30px;
  color: var(--section-label);
}

.positioning-lead h2,
.section-heading h2,
.quick-start-copy h2,
.gallery-copy h2,
.ai-build-copy h2,
.download-copy h2 {
  font-size: clamp(44px, 4vw, 62px);
  line-height: 1.04;
}

.positioning-lead > p:last-child {
  max-width: 520px;
  margin-top: 38px;
  color: var(--section-copy);
  font-size: 17px;
  line-height: 1.8;
}

.principle-list {
  list-style: none;
  padding: 0;
}

.principle-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 24px;
  padding: 30px 0 34px;
  border-top: 1px solid var(--strong-line);
  transition: border-color 200ms ease;
}

.principle-list li:hover {
  border-top-color: color-mix(in srgb, var(--accent) 45%, var(--strong-line));
}

.principle-list li:last-child {
  border-bottom: 1px solid var(--strong-line);
}

.principle-number {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.principle-list h3 {
  margin-bottom: 10px;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.principle-list p {
  max-width: 520px;
  color: var(--section-text);
  font-size: 15px;
  line-height: 1.75;
}

.component-section {
  position: relative;
  padding-block: 126px 120px;
  color: var(--dark-ink);
  background:
    radial-gradient(ellipse 50% 40% at 90% 10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%),
    radial-gradient(ellipse 40% 35% at 5% 80%, color-mix(in srgb, var(--signal) 8%, transparent), transparent 55%),
    var(--charcoal);
}

.component-section .section-index,
.component-section .showcase-label,
.component-section .pair-caption span {
  color: var(--dark-muted);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  align-items: end;
  gap: 96px;
}

.component-heading > p {
  padding-bottom: 5px;
  color: var(--dark-muted);
  font-size: 16px;
  line-height: 1.75;
}

.showcase-feature {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 0.9fr);
  gap: 64px;
  align-items: center;
  margin-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--dark-line);
}

.showcase-media {
  overflow: clip;
  aspect-ratio: 1194 / 774;
  border: 1px solid color-mix(in srgb, var(--dark-line) 80%, var(--accent));
  border-radius: var(--radius-md);
  background: #0c1218;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 8%, transparent);
}

.showcase-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

@media (hover: hover) and (pointer: fine) {
  .showcase-media:hover img {
    transform: scale(1.02);
  }
}

.showcase-copy {
  padding-right: 16px;
}

.showcase-number {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 54px;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, #5c5d58);
  border-radius: 50%;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.showcase-copy h3 {
  margin: 11px 0 18px;
  font-size: 46px;
}

.showcase-copy > p:not(.showcase-label) {
  color: var(--dark-muted);
  font-size: 15px;
  line-height: 1.75;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.tag-list span {
  padding: 6px 10px;
  border: 1px solid color-mix(in srgb, var(--accent) 25%, #555650);
  border-radius: 999px;
  color: #d6d8d1;
  font-size: 11px;
}

.showcase-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px;
  margin-top: 72px;
}

.pair-caption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-top: 18px;
}

.pair-caption strong {
  max-width: 72%;
  font-size: 21px;
  font-weight: 600;
  line-height: 1.35;
  text-align: right;
}

.family-line {
  display: flex;
  margin-top: 78px;
  padding-top: 28px;
  border-top: 1px solid var(--dark-line);
  color: var(--dark-muted);
  font-size: 13px;
}

.family-line > a {
  color: var(--dark-ink);
  font-weight: 650;
}

.component-directory {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  border-top: 1px solid var(--dark-line);
  border-left: 1px solid var(--dark-line);
}

.component-directory article {
  display: grid;
  align-content: space-between;
  min-height: 116px;
  gap: 18px;
  padding: 22px;
  border-right: 1px solid var(--dark-line);
  border-bottom: 1px solid var(--dark-line);
  background: color-mix(in srgb, var(--charcoal-soft) 78%, transparent);
}

.component-directory strong {
  color: var(--dark-ink);
  font-size: 15px;
  font-weight: 650;
}

.component-directory span {
  color: var(--dark-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
}

.quick-start-section {
  padding-block: 126px;
  background:
    radial-gradient(ellipse 45% 50% at 100% 50%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 60%),
    var(--white);
}

.quick-start-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(540px, 1.18fr);
  align-items: center;
  gap: 110px;
}

.quick-start-grid > * {
  min-width: 0;
}

.quick-start-copy > p:not(.section-index) {
  max-width: 480px;
  margin-top: 34px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.quick-start-checks {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  color: var(--ink);
  font-size: 13px;
  list-style: none;
}

.quick-start-checks li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: start;
  gap: 8px;
}

.quick-start-checks li > span:first-child {
  color: var(--green);
  font-weight: 750;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 650;
  transition: color 160ms ease, border-color 160ms ease;
}

.text-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.quick-start-links {
  display: grid;
  justify-items: start;
  gap: 16px;
  margin-top: 30px;
}

.quick-start-links .text-link {
  margin-top: 0;
}

.code-panel {
  overflow: clip;
  min-width: 0;
  max-width: 100%;
  border: 1px solid #0d151c;
  border-radius: var(--radius-md);
  color: #d8e4ec;
  background:
    linear-gradient(165deg, #152028 0%, #0d141c 100%);
  box-shadow:
    0 20px 54px rgba(8, 20, 32, 0.16),
    inset 0 1px 0 rgba(120, 200, 220, 0.08);
}

.code-panel header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 52px;
  padding: 0 16px;
  border-bottom: 1px solid #243240;
  color: #8fa4b4;
  font-family: var(--font-mono);
  font-size: 11px;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3a4a58;
}

.window-dots span:first-child { background: #e07070; }
.window-dots span:nth-child(2) { background: #d4a84a; }
.window-dots span:last-child { background: #4caf82; }

.copy-button {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 30px;
  padding: 0 9px;
  border: 1px solid #3a4a58;
  border-radius: 7px;
  color: #c5d4de;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 11px;
  transition: background 160ms ease, border-color 160ms ease;
}

.copy-button:hover {
  border-color: var(--accent);
  background: #1a2530;
}

.copy-button svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linejoin: round;
}

.code-panel pre {
  overflow-x: auto;
  min-height: 420px;
  padding: 34px 38px 38px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.78;
  tab-size: 2;
}

.code-panel code {
  font-family: inherit;
}

.code-comment { color: #6a7d8c; }
.code-keyword { color: #5ad4e6; }
.code-string { color: #d4b483; }
.code-accent { color: #5eead4; }

.copy-announcement {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.gallery-section {
  position: relative;
  padding-block: 126px;
  background: var(--panel);
  overflow: hidden;
}

.gallery-section::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -20%;
  width: 42%;
  height: 60%;
  background: radial-gradient(ellipse, color-mix(in srgb, var(--accent) 10%, transparent), transparent 70%);
  pointer-events: none;
}

.gallery-intro {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(520px, 1.22fr);
  align-items: end;
  gap: 110px;
  margin-bottom: 58px;
}

.gallery-intro .workflow-list {
  margin-top: 0;
}

.live-gallery-shell {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border: 1px solid var(--gallery-border);
  border-radius: var(--radius-md);
  background: var(--gallery-surface);
  box-shadow: var(--gallery-shadow);
}

.live-gallery-toolbar {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 9px 12px 9px 17px;
  border-bottom: 1px solid var(--gallery-divider);
  color: var(--ink);
  background: var(--gallery-header);
}

.live-gallery-brand,
.live-gallery-actions {
  display: flex;
  align-items: center;
}

.live-gallery-brand {
  min-width: 0;
  gap: 10px;
}

.live-gallery-brand strong {
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.live-gallery-status {
  padding: 4px 8px;
  border: 1px solid var(--gallery-divider);
  border-radius: 999px;
  color: var(--soft-muted);
  background: var(--gallery-surface);
  font-size: 9px;
  font-weight: 700;
}

.live-indicator {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #8998a6;
  box-shadow: 0 0 0 4px rgba(137, 152, 166, 0.14);
}

[data-gallery-state="loading"] .live-indicator,
[data-gallery-state="slow"] .live-indicator {
  background: #efad32;
  box-shadow: 0 0 0 4px rgba(239, 173, 50, 0.16);
  animation: gallery-pulse 1.3s ease-in-out infinite;
}

[data-gallery-state="ready"] .live-indicator {
  background: var(--green);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--green) 18%, transparent);
}

[data-gallery-state="error"] .live-indicator {
  background: #d04444;
  box-shadow: 0 0 0 4px rgba(208, 68, 68, 0.16);
}

.live-gallery-actions {
  flex: 0 0 auto;
  gap: 7px;
}

.live-toolbar-button,
.live-toolbar-link {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  padding: 0 11px;
  border: 1px solid var(--gallery-divider);
  border-radius: 9px;
  color: var(--ink);
  background: var(--gallery-surface);
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
}

.live-toolbar-button:disabled {
  display: none;
}

.live-gallery-viewport {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #e9eef3;
}

.live-gallery-poster,
.live-gallery-frame,
.live-gallery-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.live-gallery-poster {
  z-index: 0;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.78) contrast(0.94);
  transform: scale(1.01);
  transition: opacity 360ms ease, filter 360ms ease;
}

.live-gallery-frame {
  z-index: 1;
  border: 0;
  opacity: 0;
  background: #e9eef3;
  transition: opacity 300ms ease;
}

[data-gallery-state="ready"] .live-gallery-frame {
  opacity: 1;
}

[data-gallery-state="ready"] .live-gallery-poster {
  opacity: 0;
}

.live-gallery-overlay {
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 32px;
  color: #111820;
  text-align: center;
  background: radial-gradient(circle at 50% 44%, rgba(255, 255, 255, 0.97), rgba(239, 245, 249, 0.87) 48%, rgba(222, 231, 239, 0.72));
  backdrop-filter: blur(16px) saturate(0.82);
  transition: opacity 260ms ease, visibility 260ms ease;
}

:root[data-theme="dark"] .live-gallery-overlay {
  color: #f2f7fb;
  background: radial-gradient(circle at 50% 44%, rgba(25, 34, 43, 0.97), rgba(13, 20, 28, 0.9) 48%, rgba(5, 9, 14, 0.8));
}

[data-gallery-state="ready"] .live-gallery-overlay {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.live-gallery-overlay strong {
  margin-top: 18px;
  font-size: clamp(23px, 3vw, 36px);
  letter-spacing: -0.035em;
}

.live-gallery-overlay p {
  max-width: 580px;
  margin: 10px auto 0;
  color: #596978;
  font-size: 13px;
}

:root[data-theme="dark"] .live-gallery-overlay p {
  color: #a8b7c3;
}

.live-gallery-overlay-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

[data-gallery-state="loading"] .live-gallery-overlay-actions,
[data-gallery-state="slow"] .live-gallery-overlay-actions {
  display: none;
}

.gallery-loader {
  display: none;
  width: 34px;
  height: 34px;
  border: 3px solid rgba(13, 143, 168, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: gallery-spin 0.8s linear infinite;
}

[data-gallery-state="loading"] .gallery-loader,
[data-gallery-state="slow"] .gallery-loader {
  display: block;
}

[data-gallery-state="error"] .gallery-loader {
  display: grid;
  place-items: center;
  border: 0;
  color: #d04444;
  animation: none;
}

[data-gallery-state="error"] .gallery-loader::before {
  font-size: 30px;
  font-weight: 800;
  content: "!";
}

.noscript-note {
  margin: 0;
  padding: 12px 18px;
  color: var(--gallery-copy);
  text-align: center;
}

@keyframes gallery-spin {
  to { transform: rotate(360deg); }
}

@keyframes gallery-pulse {
  50% { opacity: 0.5; transform: scale(0.86); }
}

.gallery-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(360px, 0.78fr);
  align-items: center;
  gap: 100px;
}

.gallery-product {
  overflow: clip;
  border: 1px solid var(--gallery-border);
  border-radius: var(--radius-md);
  background: var(--gallery-surface);
  box-shadow: var(--gallery-shadow);
}

.gallery-product-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
  padding: 0 17px;
  border-bottom: 1px solid var(--gallery-divider);
  color: var(--section-label);
  background: var(--gallery-header);
}

.gallery-product img {
  width: 100%;
  height: auto;
  aspect-ratio: 1194 / 774;
  object-fit: contain;
}

.gallery-copy > p:not(.section-index) {
  margin-top: 30px;
  color: var(--gallery-copy);
  line-height: 1.8;
}

.workflow-list {
  margin-top: 40px;
  list-style: none;
  padding: 0;
}

.workflow-list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-top: 1px solid var(--workflow-line);
}

.workflow-list li:last-child {
  border-bottom: 1px solid var(--workflow-line);
}

.gallery-web-link {
  margin-top: 28px;
}

.workflow-list > li > span {
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
}

.workflow-list strong {
  font-size: 15px;
  font-weight: 650;
}

.workflow-list p {
  margin-top: 3px;
  color: var(--workflow-copy);
  font-size: 13px;
  line-height: 1.6;
}

.download-section {
  padding-block: 126px;
  background:
    radial-gradient(ellipse 50% 40% at 0% 100%, color-mix(in srgb, var(--signal) 7%, transparent), transparent 55%),
    var(--paper);
}

.download-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(500px, 1.15fr);
  gap: 128px;
  align-items: start;
}

.download-copy > p:not(.section-index) {
  max-width: 500px;
  margin-top: 34px;
  color: var(--muted);
  line-height: 1.8;
}

.download-panel {
  overflow: clip;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--card-shadow);
}

.download-recommended {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 32px;
  color: var(--cta-text);
  background:
    linear-gradient(135deg, var(--cta-bg) 0%, color-mix(in srgb, var(--cta-bg) 88%, var(--accent)) 100%);
  transition: background 160ms ease, filter 160ms ease;
}

.download-recommended:hover {
  filter: brightness(1.06);
}

.download-recommended > span {
  display: grid;
}

.download-recommended small,
.release-row small {
  color: color-mix(in srgb, currentColor 62%, transparent);
  font-size: 11px;
  font-style: normal;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.download-recommended strong {
  margin-top: 7px;
  font-size: 24px;
  font-weight: 620;
  letter-spacing: -0.035em;
}

.download-recommended em {
  margin-top: 4px;
  color: color-mix(in srgb, currentColor 72%, transparent);
  font-size: 12px;
  font-style: normal;
}

.download-recommended svg {
  width: 26px;
  height: 26px;
}

.release-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 24px 30px;
  border-bottom: 1px solid var(--soft-line);
}

.release-row > span {
  display: grid;
}

.release-row small {
  color: var(--soft-muted);
}

.release-row strong {
  margin-top: 4px;
  font-size: 17px;
}

.release-row a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--download-link);
  font-size: 13px;
  font-weight: 600;
  transition: color 160ms ease;
}

.release-row a:hover {
  color: var(--accent);
}

.asset-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 12px 20px 20px;
}

.asset-links a {
  padding: 10px;
  border-radius: 7px;
  color: var(--download-asset);
  font-size: 12px;
  transition: color 160ms ease, background 160ms ease;
}

.asset-links a:hover {
  color: var(--ink);
  background: var(--download-hover);
}

.python-release-row {
  border-top: 1px solid var(--soft-line);
  background: color-mix(in srgb, var(--panel) 42%, var(--white));
}

.python-release-row code {
  max-width: 100%;
  overflow-x: auto;
  padding: 7px 10px;
  border: 1px solid var(--soft-line);
  border-radius: 7px;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
}

.site-footer {
  position: relative;
  padding-block: 72px 28px;
  color: var(--dark-ink);
  background:
    radial-gradient(ellipse 40% 50% at 0% 100%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%),
    var(--charcoal);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  padding-bottom: 70px;
}

.brand-inverse {
  color: var(--dark-ink);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 150px);
  gap: 52px;
}

.footer-links > div {
  display: grid;
  align-content: start;
  gap: 11px;
}

.footer-links span {
  margin-bottom: 8px;
  color: #7a8f9d;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-links a {
  color: #c5d4de;
  font-size: 13px;
  transition: color 160ms ease;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--dark-line);
  color: #6d8292;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

html:not([data-site-language="zh"]) [data-lang-zh],
html[data-site-language="zh"] [data-lang-en] {
  display: none;
}

.error-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(ellipse 50% 40% at 50% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%),
    var(--panel);
}

.error-card {
  width: min(680px, 100%);
  padding: 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--card-shadow);
}

.error-card h1 {
  margin-top: 12px;
  font-size: clamp(42px, 7vw, 68px);
  line-height: 1;
}

.error-card > p:not(.section-index) {
  margin: 24px 0 32px;
  color: var(--muted);
}

@media (max-width: 1080px) {
  .nav-shell,
  .page-shell {
    width: min(var(--page-width), calc(100% - 48px));
  }

  .nav-cluster { gap: 22px; }
  .nav-links { gap: 12px; }
  .github-link span { display: none; }

  .hero-stage {
    min-height: 540px;
  }

  .hero-message {
    width: 45%;
  }

  .hero h1 { font-size: clamp(60px, 6.1vw, 78px); }

  .hero-app-icon {
    width: 74px;
    height: 74px;
    margin-bottom: 27px;
  }

  .hero-tagline {
    margin-top: 22px;
    font-size: clamp(19px, 2vw, 24px);
  }

  .hero-value-detail {
    font-size: 13px;
  }

  .hero-techline {
    margin-top: 20px;
    font-size: 14px;
  }

  .hero-product {
    right: -1%;
    width: 53%;
  }

  .hero-actions { gap: 10px; }
  .hero-actions .button {
    gap: 10px;
    padding-inline: 14px;
  }

  .positioning-grid,
  .ai-build-grid,
  .download-grid {
    gap: 72px;
  }

  .section-heading {
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 54px;
  }

  .showcase-feature { gap: 40px; }
  .showcase-pair { gap: 36px; }

  .quick-start-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(470px, 1.2fr);
    gap: 64px;
  }

  .gallery-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(330px, 0.7fr);
    gap: 56px;
  }

  .gallery-intro { gap: 56px; }

  .path-layout { gap: 52px; }
  .path-card { min-height: 250px; padding: 20px; }
}

@media (max-width: 900px) {
  html { scroll-padding-top: 86px; }

  .site-header { backdrop-filter: blur(16px); }

  .nav-shell {
    min-height: 72px;
  }

  .menu-button {
    position: relative;
    display: block;
    cursor: pointer;
  }

  .site-header[data-menu-open="true"] .menu-button span:first-child {
    top: 19px;
    transform: rotate(45deg);
  }

  .site-header[data-menu-open="true"] .menu-button span:last-child {
    top: 19px;
    transform: rotate(-45deg);
  }

  .nav-cluster {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    display: grid;
    justify-content: stretch;
    gap: 24px;
    padding: 0 24px;
    border-bottom: 1px solid transparent;
    background: var(--paper);
    opacity: 0;
    visibility: hidden;
    transition: max-height 220ms ease, padding 220ms ease, opacity 160ms ease, visibility 160ms ease;
  }

  .site-header[data-menu-open="true"] .nav-cluster {
    max-height: 520px;
    padding-block: 22px 26px;
    border-color: var(--line);
    opacity: 1;
    visibility: visible;
  }

  .nav-links {
    display: grid;
    width: 100%;
    gap: 0;
  }

  .nav-links a {
    padding: 12px 0;
    border-bottom: 1px solid var(--soft-line);
    font-size: 15px;
  }

  .nav-links a::after { display: none; }

  .nav-actions {
    width: 100%;
    justify-content: space-between;
  }

  .github-link span { display: inline; }

  .positioning-grid,
  .ai-build-grid,
  .section-heading,
  .quick-start-grid,
  .gallery-grid,
  .download-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .path-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 42px;
  }

  .path-heading > p:last-child {
    max-width: 620px;
  }

  .gallery-intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .gallery-intro .workflow-list {
    max-width: 720px;
  }

  .component-directory {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .live-gallery-viewport {
    min-height: 520px;
    aspect-ratio: 4 / 3;
  }

  .hero-stage {
    min-height: 0;
    padding: 52px 0 40px;
  }

  .hero-message {
    width: 76%;
    min-height: 0;
    padding: 0;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(62px, 10vw, 78px);
  }

  .hero-tagline {
    max-width: 520px;
    font-size: 24px;
  }

  .hero-techline {
    font-size: 16px;
  }

  .hero-product {
    position: relative;
    top: auto;
    right: auto;
    width: 108%;
    margin: 54px -18% 0 12%;
    transform: none;
    animation: hero-rise 900ms cubic-bezier(0.22, 1, 0.36, 1) 80ms both;
  }

  .hero-window {
    transform: rotateY(-2.8deg) rotateZ(0.45deg);
  }

  .spec-strip { padding-bottom: 72px; }

  .path-section,
  .positioning-section,
  .component-section,
  .quick-start-section,
  .gallery-section,
  .ai-build-section,
  .download-section {
    padding-block: 96px;
  }

  .positioning-grid,
  .ai-build-grid,
  .section-heading,
  .quick-start-grid,
  .gallery-grid,
  .download-grid {
    gap: 58px;
  }

  .principle-list { max-width: none; }

  .component-heading > p { max-width: 620px; }

  .showcase-feature {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .showcase-copy {
    display: grid;
    grid-template-columns: 42px 1fr;
    column-gap: 24px;
  }

  .showcase-number {
    grid-row: 1 / span 4;
    margin: 0;
  }

  .showcase-copy h3 { margin-top: 8px; }
  .tag-list { grid-column: 2; }

  .quick-start-copy > p:not(.section-index),
  .download-copy > p:not(.section-index) {
    max-width: 620px;
  }

  .code-panel { max-width: 720px; }

  .gallery-product { order: 2; }
  .gallery-grid .gallery-copy { order: 1; }
  .gallery-copy > p:not(.section-index) { max-width: 620px; }

  .download-panel { max-width: 720px; }
}

@media (max-width: 620px) {
  .page-shell,
  .nav-shell {
    width: calc(100% - 40px);
  }

  .nav-shell { min-height: 68px; }
  .brand { font-size: 17px; }

  .hero-stage {
    padding: 36px 0 24px;
  }

  .hero-message {
    width: 100%;
  }

  .hero-app-icon {
    width: 68px;
    height: 68px;
    margin-bottom: 27px;
  }

  .positioning-lead h2,
  .section-heading h2,
  .quick-start-copy h2,
  .gallery-copy h2,
  .ai-build-copy h2,
  .download-copy h2 {
    font-size: clamp(37px, 10.2vw, 42px);
    letter-spacing: -0.055em;
  }

  .hero h1 {
    font-size: clamp(50px, 14.4vw, 59px);
    line-height: 0.94;
    letter-spacing: -0.068em;
  }

  .hero-tagline {
    margin-top: 22px;
    font-size: 20px;
    line-height: 1.35;
  }

  .hero-value-detail {
    max-width: 520px;
    font-size: 15px;
  }

  .hero-techline {
    gap: 5px;
    margin-top: 18px;
    font-size: 13px;
  }

  .hero-action-note {
    max-width: 420px;
    line-height: 1.55;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    margin-top: 30px;
  }

  .button { width: 100%; }

  .hero-product {
    width: 129%;
    margin: 44px -34% -2px 8%;
  }

  .hero-window {
    border-width: 3px;
    border-radius: 14px;
    transform: rotateY(-1.4deg) rotateZ(0.35deg);
  }

  .gallery-product,
  .showcase-media {
    border-radius: 12px;
  }

  .spec-strip { padding-block: 28px 56px; }

  .spec-strip dl {
    grid-template-columns: repeat(2, 1fr);
  }

  .spec-strip dl > div {
    padding: 18px 12px;
    border-bottom: 1px solid color-mix(in srgb, var(--hero-ink) 14%, transparent);
  }

  .spec-strip dl > div:nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }

  .spec-strip dl > div:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .spec-strip dd { font-size: 14px; }

  .path-section,
  .positioning-section,
  .component-section,
  .quick-start-section,
  .gallery-section,
  .ai-build-section,
  .download-section {
    padding-block: 76px;
  }

  .positioning-grid,
  .ai-build-grid,
  .section-heading,
  .quick-start-grid,
  .gallery-grid,
  .download-grid {
    gap: 44px;
  }

  .section-index {
    margin-bottom: 21px;
    font-size: 10px;
  }

  .path-heading h2 {
    font-size: clamp(34px, 9vw, 42px);
  }

  .path-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .path-card {
    min-height: 196px;
    padding: 22px;
  }

  .path-card strong {
    margin-top: 28px;
  }

  .positioning-lead > p:last-child,
  .quick-start-copy > p:not(.section-index),
  .download-copy > p:not(.section-index) {
    margin-top: 25px;
    font-size: 15px;
  }

  .principle-list li {
    grid-template-columns: 30px 1fr;
    gap: 14px;
    padding: 24px 0;
  }

  .principle-list h3 { font-size: 19px; }

  .component-heading > p { font-size: 15px; }
  .showcase-feature { margin-top: 44px; padding-bottom: 48px; }

  .showcase-copy {
    display: block;
  }

  .showcase-number {
    width: 36px;
    height: 36px;
    margin-bottom: 28px;
  }

  .showcase-copy h3 { font-size: 36px; }
  .tag-list { margin-top: 22px; }

  .showcase-pair {
    grid-template-columns: 1fr;
    gap: 44px;
    margin-top: 48px;
  }

  .pair-caption strong { font-size: 18px; }

  .family-line {
    grid-template-columns: 1fr;
    gap: 11px;
    margin-top: 54px;
  }

  .component-directory {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 28px;
  }

  .component-directory article {
    min-height: 98px;
    padding: 18px;
  }

  .code-panel { border-radius: 12px; }

  .code-panel header {
    grid-template-columns: 1fr auto;
    padding-inline: 13px;
  }

  .window-dots { display: none; }

  .code-panel pre {
    min-height: 0;
    padding: 25px 20px 29px;
    font-size: 11px;
    line-height: 1.72;
  }

  .gallery-copy > p:not(.section-index) { margin-top: 24px; }
  .workflow-list { margin-top: 30px; }

  .ai-build-points li {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 12px;
  }

  .ai-build-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .ai-build-guide { align-self: flex-start; }

  .ai-build-case-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .ai-build-case figcaption {
    grid-template-columns: minmax(0, 1fr);
  }

  .ai-build-case figcaption a {
    grid-column: 1;
    grid-row: auto;
    justify-self: start;
    margin-top: 8px;
  }

  .gallery-intro {
    margin-bottom: 38px;
  }

  .live-gallery-shell {
    border-radius: 12px;
  }

  .live-gallery-toolbar {
    min-height: 52px;
    padding: 8px 9px;
  }

  .live-gallery-status,
  .live-toolbar-button {
    display: none;
  }

  .live-toolbar-link {
    min-height: 32px;
    padding-inline: 9px;
  }

  .live-gallery-viewport {
    height: min(620px, 78vh);
    min-height: 500px;
    aspect-ratio: auto;
  }

  .live-gallery-overlay {
    padding: 22px;
  }

  .live-gallery-overlay-actions {
    width: 100%;
    flex-direction: column;
  }

  .download-recommended { padding: 25px 22px; }
  .download-recommended strong { font-size: 20px; }
  .release-row { align-items: flex-start; flex-direction: column; padding: 21px; }
  .asset-links { grid-template-columns: 1fr; padding: 10px 12px 16px; }

  .site-footer { padding-top: 58px; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-bottom: 48px;
  }

  .footer-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
  }

  .footer-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .error-card { padding: 42px 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .hero-grid,
  .hero-aurora,
  .hero-message,
  .hero-product {
    animation: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}