:root {
  color-scheme: light;
  --ink: #111817;
  --muted: #5f6f6a;
  --paper: #f4f6f3;
  --white: #ffffff;
  --line: #d9e2dd;
  --dark: #0f1716;
  --dark-2: #172220;
  --teal: #087b76;
  --teal-soft: #dff1ef;
  --amber: #b6782d;
  --blue: #254f73;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(20px, 5vw, 72px);
  color: #ffffff;
  background: rgba(15, 23, 22, 0.88);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.52);
  color: #ffffff;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.05;
}

.brand strong {
  font-size: 18px;
}

.brand small {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
}

.nav-links {
  display: flex;
  gap: clamp(16px, 2.4vw, 34px);
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
}

.nav-links a:hover {
  color: #ffffff;
}

.section-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.section {
  padding: clamp(76px, 9vw, 122px) 0;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #ffffff;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    var(--dark);
  background-size: 48px 48px, 48px 48px, auto;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 38%;
  background: linear-gradient(180deg, rgba(15, 23, 22, 0), var(--dark));
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 0.82fr);
  gap: clamp(44px, 7vw, 92px);
  align-items: center;
  padding-top: 130px;
  padding-bottom: 76px;
}

.hero-content {
  max-width: 780px;
}

.eyebrow,
.section-label {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #91ddd6;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 26px;
  font-size: clamp(44px, 6vw, 76px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 3.7vw, 48px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 19px;
  line-height: 1.28;
}

.hero-copy {
  max-width: 660px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.76;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 900;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

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

.button.primary {
  color: #ffffff;
  background: var(--teal);
}

.button.primary:hover {
  background: #056663;
}

.button.ghost {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.06);
}

.product-window {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(10px);
}

.window-top {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.window-top span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.38);
}

.window-top strong {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
}

.window-body {
  padding: 22px;
}

.metric-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 12px;
  margin-bottom: 16px;
}

.metric-row div,
.dataset-table,
.pipeline span {
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(255, 255, 255, 0.045);
}

.metric-row div {
  min-height: 94px;
  padding: 16px;
}

.metric-row small,
.panel-title span {
  display: block;
  margin-bottom: 8px;
  color: #91ddd6;
  font-size: 12px;
  font-weight: 900;
}

.metric-row strong {
  color: #ffffff;
  font-size: 18px;
  line-height: 1.35;
}

.dataset-table {
  overflow: hidden;
}

.dataset-table div {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr 0.9fr;
  min-height: 42px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dataset-table div:last-child {
  border-bottom: 0;
}

.dataset-table span {
  display: flex;
  align-items: center;
  padding: 0 12px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.dataset-table span:last-child {
  border-right: 0;
}

.dataset-table div:first-child span {
  color: rgba(255, 255, 255, 0.5);
  font-weight: 900;
  text-transform: uppercase;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.pipeline span {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  font-weight: 900;
  text-align: center;
}

.market-strip {
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.market-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.market-inner span {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: var(--white);
  color: #2b3735;
  font-size: 13px;
  font-weight: 900;
  text-align: center;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(180px, 0.32fr) minmax(0, 0.72fr) minmax(240px, 0.46fr);
  gap: clamp(28px, 5vw, 68px);
  align-items: end;
  margin-bottom: 38px;
}

.section-head.compact {
  display: block;
  margin-bottom: 0;
}

.section-head p:last-child,
.capability-grid p,
.timeline p,
.principle-grid p,
.contact-layout p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.72;
}

.platform {
  background: var(--paper);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.capability-grid article {
  min-height: 286px;
  padding: 28px;
  background: var(--white);
}

.capability-grid span {
  display: block;
  margin-bottom: 52px;
  color: var(--amber);
  font-size: 12px;
  font-weight: 900;
}

.method {
  color: #ffffff;
  background: var(--dark-2);
}

.method .section-label,
.governance .section-label {
  color: #91ddd6;
}

.method-layout {
  display: grid;
  grid-template-columns: minmax(230px, 0.34fr) minmax(0, 1fr);
  gap: clamp(34px, 6vw, 86px);
}

.timeline {
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.timeline article {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.timeline span {
  color: #91ddd6;
  font-size: 12px;
  font-weight: 900;
}

.timeline h3 {
  color: #ffffff;
}

.timeline p {
  color: rgba(255, 255, 255, 0.68);
}

.outputs {
  background: var(--white);
}

.output-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(0, 1fr);
  gap: clamp(34px, 6vw, 82px);
  align-items: start;
}

.output-panel {
  border: 1px solid var(--line);
  background: #f7faf8;
}

.panel-title {
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}

.panel-title strong {
  color: var(--ink);
  font-size: 22px;
  line-height: 1.3;
}

.index-list div {
  display: grid;
  grid-template-columns: minmax(120px, 0.46fr) minmax(0, 1fr);
  gap: 18px;
  min-height: 68px;
  padding: 0 24px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.index-list div:last-child {
  border-bottom: 0;
}

.index-list span {
  color: var(--muted);
  font-size: 13px;
}

.index-list strong {
  color: var(--ink);
  font-size: 15px;
}

.output-list {
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.output-list div {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  min-height: 72px;
  border-bottom: 1px solid var(--line);
}

.output-list span {
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
}

.output-list strong {
  font-size: clamp(18px, 2.4vw, 26px);
  line-height: 1.25;
}

.governance {
  background: var(--paper);
}

.governance-layout {
  display: grid;
  grid-template-columns: minmax(230px, 0.34fr) minmax(0, 1fr);
  gap: clamp(34px, 6vw, 86px);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.principle-grid article {
  min-height: 190px;
  padding: 28px;
  background: var(--white);
}

.contact {
  color: #ffffff;
  background: var(--dark);
}

.contact .section-label {
  color: #91ddd6;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 430px);
  gap: clamp(34px, 6vw, 80px);
  align-items: center;
}

.contact-layout p {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.7);
}

.contact-panel {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.055);
}

.contact-line {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  min-height: 68px;
  padding: 20px 22px;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.contact-line:last-child {
  border-bottom: 0;
}

.contact-line span {
  color: rgba(255, 255, 255, 0.62);
}

.contact-line strong {
  color: #ffffff;
  text-align: right;
}

.contact-line.featured strong {
  color: #91ddd6;
}

.site-footer {
  padding: 26px 0;
  background: #0a100f;
  color: rgba(255, 255, 255, 0.62);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
}

@media (max-width: 1040px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .section-head,
  .method-layout,
  .output-layout,
  .governance-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .site-header {
    height: 64px;
    padding: 0 18px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .hero {
    min-height: 82vh;
  }

  .hero-grid {
    padding-top: 104px;
    padding-bottom: 58px;
  }

  h1 {
    font-size: clamp(38px, 12vw, 54px);
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .product-window {
    display: none;
  }

  .market-inner,
  .capability-grid,
  .principle-grid,
  .metric-row,
  .pipeline {
    grid-template-columns: 1fr;
  }

  .market-inner span {
    min-height: 58px;
  }

  .section {
    padding: 66px 0;
  }

  .capability-grid article {
    min-height: auto;
  }

  .capability-grid span {
    margin-bottom: 28px;
  }

  .timeline article {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
  }

  .index-list div {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px 20px;
  }

  .output-list div {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .contact-line {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-line strong {
    text-align: left;
  }

  .footer-inner {
    flex-direction: column;
  }
}