:root {
  --bg: #071314;
  --surface: #0d2021;
  --surface-2: #122b2a;
  --surface-3: #173534;
  --fg: #f4f4f4;
  --muted: #c6c6c6;
  --subtle: #8d8d8d;
  --border: #244442;
  --accent: #d98a24;
  --accent-strong: #f1b04d;
  --blue: #78a9ff;
  --green: #24a148;
  --container: 1440px;
  --gutter: 32px;
  --nav-h: 56px;
  --font-display: "IBM Plex Sans", "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 72% 8%, color-mix(in oklch, var(--green) 15%, transparent) 0 18rem, transparent 34rem),
    radial-gradient(circle at 14% 28%, color-mix(in oklch, var(--blue) 10%, transparent) 0 16rem, transparent 32rem),
    linear-gradient(180deg, color-mix(in oklch, var(--surface-2) 42%, var(--bg)), var(--bg) 48rem);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
p, h1, h2, h3 { margin: 0; }
p { text-wrap: pretty; }
h1, h2, h3 { font-family: var(--font-display); text-wrap: balance; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.topnav {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--nav-h);
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  height: var(--nav-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 176px;
  font-weight: 600;
  letter-spacing: 0;
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.brand-mark span { background: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  overflow: hidden;
  white-space: nowrap;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0;
}

.nav-links a:hover,
.nav-links a.active { color: var(--fg); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 14px 18px 14px 16px;
  border: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--fg);
  font-size: 14px;
  letter-spacing: 0;
  white-space: nowrap;
}

.btn::after { content: "→"; margin-left: 32px; }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-secondary { border-color: var(--border); background: color-mix(in oklch, var(--surface) 72%, transparent); }
.btn-ghost { color: var(--accent-strong); padding-inline: 0; }

.section {
  padding: 88px 0;
  border-top: 1px solid var(--border);
}

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(280px, 0.52fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 40px;
}

.eyebrow {
  margin-bottom: 16px;
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 920px;
  font-size: clamp(46px, 5.1vw, 76px);
  line-height: 1.08;
  font-weight: 300;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(34px, 3.2vw, 54px);
  line-height: 1.15;
  font-weight: 300;
  letter-spacing: 0;
}

h3 {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
}

.lead {
  color: var(--muted);
  font-size: 18px;
  line-height: 30px;
  max-width: 820px;
}

.meta {
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--surface-2) 88%, transparent);
  color: var(--muted);
  font-size: 13px;
}

.tag.hot {
  border-color: color-mix(in oklch, var(--accent) 46%, var(--border));
  color: var(--accent-strong);
  background: color-mix(in oklch, var(--accent) 10%, var(--surface));
}

.hero {
  min-height: calc(100vh - var(--nav-h));
  padding: 80px 0 96px;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(560px, 0.92fr);
  gap: 56px;
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.hero-statement {
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  background: color-mix(in oklch, var(--surface-2) 82%, transparent);
  color: var(--fg);
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.28;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.warehouse-screen {
  min-height: 720px;
  border: 1px solid var(--border);
  background:
    linear-gradient(90deg, color-mix(in oklch, var(--border) 38%, transparent) 1px, transparent 1px),
    linear-gradient(180deg, color-mix(in oklch, var(--border) 32%, transparent) 1px, transparent 1px),
    color-mix(in oklch, var(--surface) 88%, transparent);
  background-size: 50px 50px, 50px 50px, auto;
  padding: 16px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 16px;
}

.screen-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  min-height: 44px;
  color: var(--muted);
}

.screen-top i {
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 8px color-mix(in oklch, var(--green) 18%, transparent);
  vertical-align: -2px;
}

.source-strip,
.alert-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.source-strip div,
.alert-strip div {
  min-height: 82px;
  padding: 16px;
  background: color-mix(in oklch, var(--surface-2) 88%, transparent);
}

.source-strip span,
.alert-strip span {
  display: block;
  margin-bottom: 8px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
}

.alert-strip {
  grid-template-columns: repeat(3, 1fr);
}

.screen-grid {
  display: grid;
  grid-template-columns: 1fr 0.55fr;
  gap: 16px;
}

.mini-table {
  display: grid;
  align-content: start;
  gap: 8px;
}

.mini-head,
.mini-row {
  display: grid;
  grid-template-columns: 0.7fr 1fr 0.9fr 0.55fr 1fr;
  gap: 8px;
}

.mini-head {
  padding: 12px;
  border: 1px solid var(--border);
  color: var(--subtle);
  font-size: 12px;
}

.mini-row > * {
  min-height: 52px;
  padding: 12px;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--surface-2) 78%, transparent);
  color: var(--muted);
  font-style: normal;
  font-size: 13px;
}

.mini-row strong { color: var(--fg); }
.mini-row em { color: var(--accent-strong); }
.mini-row em.low { color: var(--green); }

.agent-summary,
.warehouse-layer {
  padding: 20px;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--surface-2) 76%, transparent);
}

.agent-summary h3,
.warehouse-layer h3 {
  margin: 20px 0 12px;
  color: var(--accent-strong);
}

.agent-summary p:not(.meta),
.warehouse-layer p:not(.meta) {
  color: var(--muted);
}

.warehouse-layer { align-self: end; }

.data-warehouse {
  padding: 12px;
  border: 1px solid var(--border);
  background:
    linear-gradient(90deg, color-mix(in oklch, var(--border) 36%, transparent) 1px, transparent 1px),
    linear-gradient(180deg, color-mix(in oklch, var(--border) 28%, transparent) 1px, transparent 1px),
    color-mix(in oklch, var(--surface) 86%, transparent);
  background-size: 42px 42px, 42px 42px, auto;
}

.data-row,
.data-row-head {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr 1fr 0.9fr 1.1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.data-row-head {
  padding: 14px;
  border: 1px solid var(--border);
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 12px;
}

.data-cell {
  min-height: 70px;
  padding: 18px;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--surface-2) 82%, transparent);
  color: var(--muted);
}

.data-cell.primary {
  color: var(--fg);
  font-size: 20px;
  font-weight: 700;
}

.data-cell.agent {
  color: var(--green);
}

.chain-flow,
.four-grid,
.three-grid,
.question-grid,
.timeline {
  display: grid;
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
}

.chain-flow { grid-template-columns: repeat(9, 1fr); }
.four-grid { grid-template-columns: repeat(4, 1fr); }
.three-grid { grid-template-columns: repeat(3, 1fr); }
.question-grid { grid-template-columns: repeat(4, 1fr); }
.timeline { grid-template-columns: repeat(5, 1fr); }

.flow-node,
.tile,
.question-card,
.time-card {
  min-height: 200px;
  padding: 22px;
  background: var(--surface);
}

.flow-node {
  position: relative;
}

.flow-node:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -14px;
  top: 50%;
  z-index: 2;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  background: var(--blue);
  color: var(--bg);
}

.flow-node h3,
.tile h3 {
  margin-top: 28px;
}

.flow-node p,
.tile p,
.time-card p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  line-height: 22px;
}

.tile.large {
  min-height: 260px;
}

.tile .index {
  display: block;
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 12px;
}

.question-card {
  min-height: 150px;
  color: var(--muted);
}

.question-card::before {
  content: "Q";
  display: block;
  margin-bottom: 24px;
  color: var(--blue);
  font-family: var(--font-mono);
}

.time-card span {
  display: block;
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 12px;
}

.time-card span::after {
  content: "";
  display: block;
  height: 3px;
  margin: 24px 0 28px;
  background: var(--blue);
}

.ecosystem {
  display: grid;
  grid-template-columns: 0.74fr 1fr;
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
}

.ecosystem-copy,
.ecosystem-map {
  background: var(--surface);
  padding: 32px;
}

.ecosystem-copy .lead { margin-top: 24px; }

.ecosystem-map {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  background:
    linear-gradient(90deg, color-mix(in oklch, var(--border) 40%, transparent) 1px, transparent 1px),
    linear-gradient(180deg, color-mix(in oklch, var(--border) 34%, transparent) 1px, transparent 1px),
    var(--surface);
  background-size: 42px 42px;
}

.ecosystem-map::before,
.ecosystem-map::after {
  content: "";
  position: absolute;
  inset: 12% 16%;
  border: 1px solid color-mix(in oklch, var(--blue) 40%, var(--border));
  transform: rotate(18deg);
}

.ecosystem-map::after {
  inset: 18% 10%;
  border-color: color-mix(in oklch, var(--green) 44%, var(--border));
  transform: rotate(-14deg);
}

.eco-center,
.eco-node {
  position: absolute;
  z-index: 2;
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--surface-2) 90%, transparent);
  color: var(--muted);
}

.eco-center {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  min-width: 170px;
  text-align: center;
  color: var(--accent-strong);
  border-color: color-mix(in oklch, var(--accent) 48%, var(--border));
}

.e1 { left: 8%; top: 14%; }
.e2 { right: 12%; top: 18%; }
.e3 { right: 8%; top: 42%; }
.e4 { left: 12%; bottom: 16%; }
.e5 { left: 44%; top: 8%; }
.e6 { left: 10%; top: 42%; }
.e7 { right: 16%; bottom: 14%; }
.e8 { left: 42%; bottom: 8%; }
.e9 { right: 36%; top: 28%; }
.e10 { left: 30%; bottom: 26%; }

.cta {
  background: color-mix(in oklch, var(--surface-2) 72%, var(--bg));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cta-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 48px 0;
}

footer {
  padding: 48px 0 40px;
  color: var(--muted);
  background: var(--bg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 0.6fr);
  gap: 32px;
}

footer h3 {
  margin-bottom: 14px;
  color: var(--fg);
  font-size: 16px;
}

footer a,
footer p {
  display: block;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 1180px) {
  .nav-links { display: none; }
  .hero-grid,
  .screen-grid,
  .ecosystem,
  .section-header { grid-template-columns: 1fr; }
  .chain-flow { grid-template-columns: repeat(3, 1fr); }
  .four-grid,
  .three-grid,
  .question-grid,
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .source-strip { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 820px) {
  :root { --gutter: 20px; }
  .section { padding: 56px 0; }
  .hero { padding: 48px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; }
  .warehouse-screen { min-height: auto; }
  .source-strip,
  .alert-strip,
  .data-row,
  .chain-flow,
  .four-grid,
  .three-grid,
  .question-grid,
  .timeline,
  .cta-box,
  .footer-grid { grid-template-columns: 1fr; }
  .mini-head { display: none; }
  .mini-row { grid-template-columns: 1fr; }
  .data-row-head { display: none; }
  .data-cell { min-height: auto; }
  .flow-node:not(:last-child)::after { display: none; }
  .ecosystem-map { min-height: 650px; }
  .eco-node {
    position: relative;
    inset: auto;
    display: inline-block;
    margin: 6px;
  }
  .eco-center {
    position: relative;
    inset: auto;
    transform: none;
    margin: 0 0 18px;
  }
}