:root {
  color-scheme: dark;
  --ink-950: oklch(10% 0.018 225);
  --ink-900: oklch(13% 0.022 225);
  --ink-850: oklch(16% 0.026 225);
  --ink-800: oklch(20% 0.03 225);
  --ink-700: oklch(27% 0.035 225);
  --line: oklch(32% 0.04 225);
  --line-strong: oklch(45% 0.08 205);
  --paper: oklch(92% 0.015 215);
  --muted: oklch(74% 0.035 220);
  --soft: oklch(61% 0.04 220);
  --aqua: oklch(78% 0.18 205);
  --aqua-deep: oklch(58% 0.16 210);
  --violet: oklch(65% 0.19 303);
  --coral: oklch(67% 0.2 8);
  --gold: oklch(78% 0.13 88);
  --good: oklch(72% 0.16 160);
  --bad: oklch(66% 0.18 20);
  --surface-1: oklch(14% 0.025 225);
  --surface-2: oklch(18% 0.03 225);
  --surface-3: oklch(22% 0.036 225);
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-lift: 0 24px 80px oklch(5% 0.02 225 / 42%);
  --font-body: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-display: "Noto Serif SC", "Songti SC", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink-950);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(90deg, oklch(100% 0 0 / 0.025) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(0deg, oklch(100% 0 0 / 0.02) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(135deg, var(--ink-950) 0%, oklch(12% 0.035 245) 46%, oklch(13% 0.028 205) 100%);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 350;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  font-kerning: normal;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(120deg, transparent 0 41%, oklch(75% 0.13 205 / 0.065) 41.1% 41.3%, transparent 41.4%),
    linear-gradient(300deg, transparent 0 68%, oklch(69% 0.16 303 / 0.06) 68.1% 68.3%, transparent 68.4%);
}

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

img {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-shell {
  width: min(100%, 1680px);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: max(var(--space-md), env(safe-area-inset-top)) clamp(var(--space-md), 4vw, var(--space-3xl)) var(--space-md);
  background: oklch(11% 0.02 225 / 0.82);
  border-bottom: 1px solid oklch(100% 0 0 / 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--paper);
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, oklch(22% 0.06 205), oklch(17% 0.04 303));
  color: var(--aqua);
  font-size: 0.76rem;
  font-weight: 900;
  font-variant-caps: all-small-caps;
}

.site-nav {
  display: none;
  align-items: center;
  gap: var(--space-xs);
}

.site-nav a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.92rem;
  transition: color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  background: oklch(100% 0 0 / 0.06);
  color: var(--paper);
}

.site-nav .nav-cta {
  border: 1px solid oklch(78% 0.18 205 / 0.42);
  color: var(--aqua);
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--paper);
  cursor: pointer;
}

.menu-toggle span {
  width: 18px;
  height: 1px;
  background: currentColor;
}

.section-band {
  padding: clamp(var(--space-3xl), 10vw, 160px) clamp(var(--space-md), 5vw, var(--space-4xl));
  border-bottom: 1px solid oklch(100% 0 0 / 0.08);
}

.hero {
  min-height: calc(100svh - 74px);
  display: grid;
  align-items: center;
  gap: var(--space-3xl);
}

.hero-copy,
.hero-visual,
.signal-board,
.section-heading,
.source-copy {
  min-width: 0;
}

.hero .reveal {
  opacity: 1;
  transform: none;
}

.eyebrow {
  margin: 0 0 var(--space-md);
  color: var(--aqua);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  max-width: 10ch;
  margin-bottom: var(--space-lg);
  font-size: clamp(3.2rem, 9vw, 8.6rem);
  overflow-wrap: anywhere;
}

h2 {
  max-width: 13ch;
  margin-bottom: var(--space-lg);
  font-size: clamp(2.15rem, 5.4vw, 5.3rem);
}

h3 {
  margin-bottom: var(--space-sm);
  color: var(--paper);
  font-size: 1.18rem;
  line-height: 1.35;
}

.hero-lede {
  max-width: 58ch;
  margin-bottom: var(--space-xl);
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  overflow-wrap: anywhere;
}

.hero-actions,
.keyword-row,
.cta-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-sm);
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button.primary {
  background: var(--aqua);
  color: var(--ink-950);
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--paper);
  background: oklch(100% 0 0 / 0.035);
}

.button:hover {
  transform: translateY(-2px);
}

.signal-board,
.architecture,
.finance-console,
.deck-preview {
  border: 1px solid oklch(100% 0 0 / 0.12);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, oklch(100% 0 0 / 0.06), transparent 32%),
    linear-gradient(180deg, var(--surface-2), var(--surface-1));
  box-shadow: var(--shadow-lift);
}

.signal-board {
  position: relative;
  overflow: hidden;
  padding: clamp(var(--space-lg), 4vw, var(--space-2xl));
}

.signal-board::after {
  position: absolute;
  inset: auto 0 0;
  height: 5px;
  content: "";
  background: linear-gradient(90deg, var(--aqua), var(--violet), var(--coral));
}

.signal-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  color: var(--soft);
  font-size: 0.82rem;
}

.signal-topline strong {
  color: var(--aqua);
  font-variant-numeric: tabular-nums;
}

.hero-metrics {
  display: grid;
  gap: var(--space-sm);
}

.hero-metrics article,
.radar-grid div,
.insight-card,
.product-card,
.moat-list article,
.reason-card,
.capital-rhythm article,
.fund-bars article,
.team-row article,
.timeline article {
  border: 1px solid oklch(100% 0 0 / 0.1);
  border-radius: var(--radius-md);
  background: oklch(100% 0 0 / 0.045);
}

.hero-metrics article {
  padding: var(--space-lg);
}

.hero-metrics span,
.market-scale span,
.console-metrics span,
.finance-highlights span,
.team-row span,
.team-row small,
.product-card small,
.product-label {
  color: var(--soft);
}

.hero-metrics strong,
.market-scale strong,
.finance-highlights strong {
  display: block;
  color: var(--aqua);
  font-size: clamp(1.45rem, 4vw, 2.6rem);
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.model-map {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: var(--space-sm);
  margin: var(--space-xl) 0;
}

.model-map span {
  min-height: 72px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: oklch(100% 0 0 / 0.06);
  color: var(--paper);
  text-align: center;
  font-weight: 700;
}

.model-map i,
.flywheel i {
  width: 36px;
  height: 1px;
  background: var(--line-strong);
}

.radar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.radar-grid div {
  padding: var(--space-md);
}

.radar-grid span,
.radar-grid small {
  display: block;
  color: var(--soft);
}

.radar-grid strong {
  color: var(--paper);
  font-size: 1.25rem;
}

.thesis {
  display: grid;
  justify-items: center;
  text-align: center;
}

.thesis p {
  max-width: 780px;
  margin-bottom: var(--space-xl);
  font-family: var(--font-display);
  color: var(--paper);
  font-size: clamp(1.55rem, 3.8vw, 3.2rem);
  line-height: 1.42;
}

.keyword-row span,
.cta-metrics span {
  border: 1px solid oklch(78% 0.18 205 / 0.24);
  border-radius: 999px;
  padding: var(--space-xs) var(--space-md);
  background: oklch(78% 0.18 205 / 0.08);
  color: var(--aqua);
  font-size: 0.85rem;
}

.section-heading {
  display: grid;
  gap: var(--space-xs);
  margin-bottom: var(--space-2xl);
}

.section-heading h2 {
  margin-bottom: 0;
}

.insight-grid,
.product-grid,
.reason-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}

.insight-card,
.reason-card {
  padding: var(--space-lg);
}

.card-index,
.reason-card span {
  display: inline-flex;
  margin-bottom: var(--space-lg);
  color: var(--aqua);
  font-size: 0.8rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.insight-card p,
.reason-card p,
.product-card p,
.moat-list p,
.architecture p,
.source-copy p,
.capital-rhythm p,
.timeline p {
  margin-bottom: 0;
  color: var(--muted);
}

.market-scale {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
}

.market-scale article {
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--line-strong);
}

.callout {
  margin: var(--space-xl) 0 0;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid oklch(78% 0.18 205 / 0.22);
  border-radius: var(--radius-sm);
  background: oklch(78% 0.18 205 / 0.09);
  color: var(--paper);
}

.product-card {
  display: grid;
  gap: var(--space-md);
  padding: var(--space-xl);
}

.product-card.featured {
  border-color: oklch(65% 0.19 303 / 0.46);
  background: linear-gradient(180deg, oklch(25% 0.08 303 / 0.42), oklch(100% 0 0 / 0.045));
}

.product-card ul {
  display: grid;
  gap: var(--space-xs);
  margin: 0;
  padding-left: 1.1em;
  color: var(--muted);
}

.product-card strong {
  color: var(--aqua);
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
}

.product-card:nth-child(3) strong {
  color: var(--coral);
}

.tech-layout,
.funding-layout,
.source-section {
  display: grid;
  gap: var(--space-xl);
}

.architecture {
  padding: var(--space-xl);
}

.architecture h3,
.capital-rhythm h3,
.finance-console h3,
.risk-strip h3 {
  margin-bottom: var(--space-lg);
}

.arch-layer {
  padding: var(--space-md) 0;
  border-top: 1px solid oklch(100% 0 0 / 0.08);
}

.arch-layer span,
.capital-rhythm span {
  color: var(--aqua);
  font-weight: 800;
}

.moat-list {
  display: grid;
  gap: var(--space-md);
}

.moat-list article {
  padding: var(--space-lg);
}

.flywheel {
  display: grid;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.flywheel article {
  min-height: 132px;
  display: grid;
  align-content: center;
  gap: var(--space-xs);
  padding: var(--space-lg);
  border: 1px solid oklch(100% 0 0 / 0.1);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, oklch(78% 0.18 205 / 0.18), oklch(65% 0.19 303 / 0.13));
}

.flywheel article span {
  color: var(--aqua);
  font-size: 0.78rem;
  font-weight: 900;
}

.flywheel small {
  color: var(--muted);
}

.data-table-wrap {
  overflow-x: auto;
  border: 1px solid oklch(100% 0 0 / 0.1);
  border-radius: var(--radius-md);
}

.data-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid oklch(100% 0 0 / 0.08);
  text-align: left;
}

.data-table th {
  background: oklch(78% 0.18 205 / 0.16);
  color: var(--aqua);
  font-size: 0.86rem;
}

.data-table tr:last-child td {
  border-bottom: 0;
}

.team-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: var(--space-md);
}

.team-row article {
  min-height: 148px;
  display: grid;
  align-content: center;
  gap: var(--space-xs);
  padding: var(--space-lg);
  text-align: center;
}

.team-row strong {
  color: var(--paper);
  font-size: 1.45rem;
}

.team-row small {
  line-height: 1.45;
}

.timeline {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.timeline article {
  padding: var(--space-lg);
}

.timeline span {
  display: inline-flex;
  margin-bottom: var(--space-md);
  color: var(--aqua);
  font-weight: 900;
}

.fund-bars {
  display: grid;
  gap: var(--space-md);
}

.fund-bars article {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-sm) var(--space-md);
  padding: var(--space-lg);
}

.fund-bars span {
  font-weight: 800;
}

.fund-bars strong {
  color: var(--aqua);
  font-size: 1.35rem;
}

.fund-bars i {
  grid-column: 1 / -1;
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: oklch(100% 0 0 / 0.1);
}

.fund-bars i::before {
  display: block;
  width: var(--bar);
  height: 100%;
  content: "";
  background: linear-gradient(90deg, var(--aqua), var(--violet), var(--coral));
}

.capital-rhythm {
  display: grid;
  gap: var(--space-sm);
}

.capital-rhythm article {
  padding: var(--space-md) var(--space-lg);
}

.finance-console {
  margin-top: var(--space-xl);
  padding: var(--space-xl);
}

.console-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.year-tabs {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs);
  border: 1px solid oklch(100% 0 0 / 0.1);
  border-radius: var(--radius-sm);
  background: oklch(100% 0 0 / 0.04);
}

.year-tabs button {
  min-height: 36px;
  border: 0;
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-md);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.year-tabs button.is-active {
  background: var(--aqua);
  color: var(--ink-950);
  font-weight: 900;
}

.console-metrics,
.finance-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
}

.console-metrics article {
  padding: var(--space-md);
  border-bottom: 1px solid oklch(100% 0 0 / 0.1);
}

.console-metrics strong {
  display: block;
  color: var(--paper);
  font-size: 1.45rem;
  font-variant-numeric: tabular-nums;
}

.console-metrics strong.negative {
  color: var(--bad);
}

.finance-highlights {
  margin-top: var(--space-xl);
}

.finance-highlights article {
  padding-top: var(--space-md);
  border-top: 1px solid var(--line-strong);
}

.risk-strip {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  border: 1px solid oklch(100% 0 0 / 0.12);
  border-radius: var(--radius-md);
  background: oklch(100% 0 0 / 0.04);
}

.risk-strip div {
  display: grid;
  gap: var(--space-sm);
}

.risk-strip span {
  color: var(--muted);
}

.source-section {
  align-items: center;
}

.source-copy p {
  max-width: 58ch;
  color: var(--muted);
}

.deck-preview {
  max-height: 620px;
  overflow: hidden;
  margin: 0;
}

.deck-preview img {
  width: 100%;
  height: 100%;
  max-height: 620px;
  object-fit: cover;
  object-position: top;
  opacity: 0.82;
  filter: saturate(0.78) contrast(1.08);
}

.final-cta {
  min-height: 80svh;
  display: grid;
  place-items: center;
  text-align: center;
}

.final-cta h2 {
  max-width: 12ch;
  margin-inline: auto;
}

.final-cta p {
  max-width: 680px;
  margin-inline: auto;
  color: var(--muted);
  font-size: 1.18rem;
}

.final-cta .button {
  margin-top: var(--space-xl);
}

.cta-metrics {
  justify-content: center;
  margin-top: var(--space-xl);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms cubic-bezier(0.16, 1, 0.3, 1), transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 767px) {
  body {
    overflow-x: hidden;
  }

  h1 {
    max-width: 8ch;
    font-size: clamp(2.85rem, 14vw, 3.7rem);
  }

  .hero {
    min-height: auto;
    padding-top: var(--space-3xl);
    gap: var(--space-xl);
  }

  .hero-actions .button {
    width: min(100%, 21rem);
    flex: 0 1 21rem;
    padding-inline: var(--space-md);
  }

  .hero-lede {
    width: min(100%, 19.5rem);
    max-width: 19.5rem;
    font-size: 1rem;
    line-break: anywhere;
    word-break: break-word;
  }

  .signal-board {
    padding: var(--space-lg);
  }

  .site-header.is-open .site-nav {
    position: absolute;
    inset: calc(100% - 1px) var(--space-md) auto;
    display: grid;
    gap: var(--space-xs);
    padding: var(--space-md);
    border: 1px solid oklch(100% 0 0 / 0.12);
    border-radius: var(--radius-md);
    background: var(--surface-2);
    box-shadow: var(--shadow-lift);
  }

  .site-header.is-open .site-nav a {
    justify-content: space-between;
  }

  .model-map,
  .radar-grid {
    grid-template-columns: 1fr;
  }

  .model-map i {
    width: 1px;
    height: 24px;
    justify-self: center;
  }
}

@media (min-width: 768px) {
  .site-nav {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .hero {
    grid-template-columns: minmax(0, 1.04fr) minmax(380px, 0.86fr);
  }

  .section-heading {
    grid-template-columns: minmax(220px, 0.35fr) minmax(0, 1fr);
    align-items: end;
  }

  .section-heading .eyebrow {
    margin-bottom: 0;
  }

  .flywheel {
    grid-template-columns: 1fr auto 1fr auto 1fr;
  }

  .timeline {
    grid-template-columns: repeat(4, 1fr);
  }

  .tech-layout,
  .funding-layout,
  .source-section {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .section-band {
    padding-inline: clamp(var(--space-3xl), 8vw, 132px);
  }
}

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

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}