:root {
  color-scheme: dark;
  --bg: #081422;
  --surface: #0d1d2e;
  --surface-strong: #12263a;
  --surface-soft: #102236;
  --text: #eef3f8;
  --muted: #aab8c6;
  --line: rgba(226, 235, 244, 0.16);
  --accent: #dda534;
  --accent-deep: #b97816;
  --accent-text: #141006;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(2, 10, 19, 0.42);
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 86% 6%, rgba(221, 165, 52, 0.08), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 12px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-text);
}

.skip-link:focus {
  top: 12px;
}

.section-shell {
  width: min(var(--max-width), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 20, 34, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav-shell {
  width: min(var(--max-width), calc(100% - 48px));
  height: 72px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 18px;
  font-weight: 850;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--text);
}

.nav-cta {
  padding: 9px 15px;
  border-radius: 12px;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
}

.hero {
  min-height: calc(100dvh - 72px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: clamp(36px, 6vw, 84px);
  padding-block: 56px;
}

.hero-copy {
  max-width: 560px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 720;
  letter-spacing: 0.12em;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(42px, 4.8vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.hero-summary,
.story-copy p,
.section-heading p,
.closing p {
  max-width: 65ch;
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 20px);
}

.hero-summary {
  max-width: 35rem;
  margin-bottom: 30px;
}

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

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 760;
  white-space: nowrap;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

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

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

.button-primary {
  background: var(--accent);
  color: var(--accent-text);
}

.button-primary:hover {
  background: #e9b64d;
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.button-secondary:hover {
  border-color: rgba(221, 165, 52, 0.55);
  background: rgba(221, 165, 52, 0.08);
}

.hero-media,
.story-media,
.product-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-media {
  position: relative;
  aspect-ratio: 16 / 10;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.hero-media img,
.story-media img,
.product-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-media picture,
.story-media picture,
.product-frame picture,
.capability-visual picture {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-media img {
  object-position: 62% center;
}

.story,
.capabilities,
.product,
.workflow,
.boundary,
.closing {
  padding-block: clamp(82px, 10vw, 138px);
}

.story {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  align-items: end;
  gap: clamp(30px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

.story-copy {
  padding-bottom: 12px;
}

.story-media {
  aspect-ratio: 3 / 1;
}

.capabilities > h2 {
  max-width: 720px;
  margin-bottom: 42px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.capability {
  min-height: 250px;
  padding: clamp(24px, 3.4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}

.capability p {
  max-width: 38rem;
  margin-bottom: 0;
  color: var(--muted);
}

.capability-wide {
  grid-column: span 7;
}

.capability-compact {
  grid-column: span 5;
}

.capability-accent {
  background:
    linear-gradient(145deg, rgba(221, 165, 52, 0.2), transparent 66%),
    var(--surface-strong);
}

.capability-pattern {
  background:
    repeating-linear-gradient(135deg, transparent 0 22px, rgba(221, 165, 52, 0.06) 22px 23px),
    var(--surface-soft);
}

.capability-label {
  display: block;
  margin-bottom: 42px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 720;
}

.capability-visual {
  position: relative;
  grid-column: 1 / -1;
  min-height: 430px;
  padding: 0;
}

.capability-visual picture,
.capability-visual img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
  object-position: top center;
}

.capability-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 20, 34, 0.92), transparent 56%);
  pointer-events: none;
}

.capability-visual-copy {
  position: absolute;
  z-index: 1;
  left: clamp(24px, 4vw, 48px);
  bottom: clamp(22px, 3vw, 38px);
}

.capability-visual-copy .capability-label {
  margin-bottom: 8px;
}

.capability-visual-copy h3 {
  margin-bottom: 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 44px;
}

.product-frame {
  background: #edf2f5;
}

.product-frame img {
  aspect-ratio: 16 / 9;
  object-position: top center;
}

.product-frame figcaption {
  padding: 15px 20px;
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
}

.workflow {
  border-top: 1px solid var(--line);
}

.workflow > h2 {
  max-width: 650px;
  margin-bottom: 44px;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}

.workflow-grid article {
  padding-top: 22px;
  border-top: 3px solid var(--accent);
}

.workflow-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.boundary-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 5vw, 70px);
}

.boundary-columns article {
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.boundary-columns ul {
  margin: 26px 0 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.boundary-columns li + li {
  margin-top: 12px;
}

.boundary-columns li::marker {
  color: var(--accent);
}

.closing {
  margin-bottom: clamp(56px, 8vw, 96px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 32px;
  padding-inline: clamp(26px, 5vw, 58px);
  border: 1px solid rgba(221, 165, 52, 0.36);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(221, 165, 52, 0.14), transparent 58%),
    var(--surface-strong);
}

.closing h2 {
  margin-bottom: 12px;
}

.closing p {
  margin-bottom: 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-inner {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 14px;
}

.footer-inner p {
  margin-bottom: 0;
}

.footer-inner a:hover {
  color: var(--text);
}

.reveal {
  transition: opacity 620ms cubic-bezier(0.16, 1, 0.3, 1), transform 620ms cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.reveal-pending {
  opacity: 0;
  transform: translateY(24px);
}

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

@media (max-width: 900px) {
  .hero,
  .story {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-block: 68px 82px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .story-media {
    aspect-ratio: 3 / 1;
  }

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

  .closing {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

@media (max-width: 700px) {
  .section-shell,
  .nav-shell {
    width: min(100% - 32px, var(--max-width));
  }

  .nav-shell {
    height: 64px;
  }

  .nav-links > a:not(.nav-cta) {
    display: none;
  }

  .hero {
    min-height: calc(100dvh - 64px);
    align-content: center;
    gap: 34px;
    padding-block: 42px 56px;
  }

  h1 {
    font-size: clamp(39px, 12vw, 56px);
  }

  .hero-media {
    aspect-ratio: 4 / 3;
  }

  .story,
  .capabilities,
  .product,
  .workflow,
  .boundary,
  .closing {
    padding-block: 74px;
  }

  .story-media {
    aspect-ratio: 16 / 9;
  }

  .story-media img {
    object-position: 100% center;
  }

  .capability-grid,
  .workflow-grid,
  .boundary-columns {
    grid-template-columns: 1fr;
  }

  .capability-wide,
  .capability-compact,
  .capability-visual {
    grid-column: 1;
  }

  .capability {
    min-height: 220px;
  }

  .capability-visual,
  .capability-visual picture,
  .capability-visual img {
    min-height: 300px;
  }

  .product-frame figcaption {
    font-size: 13px;
  }

  .closing {
    width: calc(100% - 32px);
    padding-inline: 24px;
  }

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

  .closing-actions .button,
  .hero-actions .button {
    flex: 1 1 auto;
  }

  .footer-inner {
    min-height: 118px;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
  }
}

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

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

  .reveal,
  .reveal.reveal-pending,
  .reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header {
    background: var(--bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}