:root {
  --ink: #0c1726;
  --ink-soft: #506073;
  --night: #07111f;
  --night-2: #0a1729;
  --night-3: #0d2037;
  --surface: #f5f8fb;
  --white: #ffffff;
  --line: rgba(12, 32, 55, 0.12);
  --line-dark: rgba(137, 189, 220, 0.15);
  --cyan: #21d8c5;
  --cyan-deep: #0e9f9c;
  --blue: #539af8;
  --violet: #8f76ff;
  --amber: #f0aa56;
  --radius: 24px;
  --shadow: 0 28px 80px rgba(11, 28, 48, 0.12);
  --container: min(1180px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: 'Manrope', 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

button {
  font: inherit;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  transform: translateY(-160%);
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--cyan);
  color: var(--night);
  font-weight: 700;
  transition: transform 0.2s ease;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  width: 100%;
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  border-color: rgba(255, 255, 255, 0.08);
  background: rgba(5, 14, 25, 0.86);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  min-height: 82px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
}

.brand img {
  flex: 0 0 auto;
}

.official-mark {
  --mark-width: 51px;
  position: relative;
  display: inline-block;
  width: var(--mark-width);
  height: calc(var(--mark-width) * 0.6617);
  flex: 0 0 auto;
  overflow: hidden;
}

.official-mark img {
  position: absolute;
  top: 0;
  left: calc(var(--mark-width) * -0.3845);
  width: calc(var(--mark-width) * 1.769);
  max-width: none;
  height: auto;
}

.official-mark-core {
  --mark-width: 48px;
}

.official-mark-dialog {
  --mark-width: 72px;
  display: block;
  margin: 0 auto 20px;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-copy strong {
  font-size: 18px;
  letter-spacing: 0.12em;
}

.brand-copy span {
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.17em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 35px;
  margin-left: auto;
}

.desktop-nav a {
  position: relative;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 1px;
  transform: scaleX(0);
  background: var(--cyan);
  content: '';
  transition: transform 0.25s ease;
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible {
  color: var(--white);
}

.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  margin-left: 34px;
  padding: 11px 17px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-size: 13px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.header-cta:hover {
  border-color: rgba(33, 216, 197, 0.65);
  background: rgba(33, 216, 197, 0.08);
}

.menu-toggle,
.mobile-nav {
  display: none;
}

.hero {
  position: relative;
  min-height: 880px;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 76% 18%, rgba(36, 142, 184, 0.12), transparent 35%),
    linear-gradient(135deg, #07111f 0%, #09172a 55%, #06101d 100%);
}

.hero-grid,
.contact-grid {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  background-image:
    linear-gradient(rgba(122, 182, 212, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 182, 212, 0.12) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.hero-glow-a {
  top: 16%;
  right: 9%;
  width: 340px;
  height: 340px;
  background: rgba(33, 216, 197, 0.13);
}

.hero-glow-b {
  right: 34%;
  bottom: 6%;
  width: 260px;
  height: 260px;
  background: rgba(111, 92, 239, 0.1);
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(480px, 0.92fr) minmax(560px, 1.08fr);
  align-items: center;
  gap: 8px;
  min-height: 850px;
  padding-top: 90px;
}

.eyebrow,
.kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  color: var(--cyan-deep);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.eyebrow {
  color: rgba(147, 236, 229, 0.82);
}

.eyebrow span {
  width: 22px;
  height: 1px;
  background: var(--cyan);
}

.hero h1 {
  max-width: 650px;
  margin: 0;
  font-size: clamp(54px, 5vw, 76px);
  font-weight: 600;
  line-height: 1.13;
  letter-spacing: -0.055em;
}

.hero h1 span,
.section-heading h2 span,
.center-heading h2 span,
.about-copy h2 span,
.contact-inner h2 span {
  color: var(--cyan);
}

.hero-lead {
  max-width: 475px;
  margin: 29px 0 0;
  color: rgba(226, 238, 247, 0.7);
  font-size: 17px;
  line-height: 1.9;
}

.hero-actions,
.contact-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 35px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  min-height: 52px;
  padding: 0 25px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  background: var(--cyan);
  color: #031713;
  box-shadow: 0 16px 42px rgba(33, 216, 197, 0.2);
}

.button-primary:hover {
  box-shadow: 0 20px 52px rgba(33, 216, 197, 0.3);
}

.button-ghost {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.03);
  color: var(--white);
}

.button-ghost:hover {
  border-color: rgba(33, 216, 197, 0.55);
  background: rgba(33, 216, 197, 0.06);
}

.play-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(33, 216, 197, 0.12);
}

.hero-trust {
  display: flex;
  gap: 23px;
  margin-top: 40px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 12px;
}

.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-trust i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.hero-visual {
  position: relative;
  width: 730px;
  margin-left: -60px;
  transform-style: preserve-3d;
}

.hero-image-shell {
  position: relative;
  z-index: 2;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(135, 210, 229, 0.18);
  border-radius: 50% 50% 18% 18% / 45% 45% 20% 20%;
  background: #06111e;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.4), 0 0 80px rgba(42, 190, 218, 0.08);
  mask-image: linear-gradient(to bottom, black 0%, black 78%, transparent 99%);
}

.hero-image-shell::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(255, 255, 255, 0.06), transparent 24%, transparent 77%, rgba(67, 208, 224, 0.05));
  content: '';
  pointer-events: none;
}

.hero-image-shell img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  object-position: 68% center;
}

.hero-image-shell figcaption {
  position: absolute;
  top: 25px;
  right: 30px;
  color: rgba(255, 255, 255, 0.35);
  font-size: 9px;
  letter-spacing: 0.2em;
}

.visual-orbit {
  position: absolute;
  z-index: 1;
  border: 1px solid rgba(55, 207, 211, 0.16);
  border-radius: 50%;
}

.orbit-a {
  inset: -55px 25px -10px -15px;
  animation: orbitPulse 5s ease-in-out infinite;
}

.orbit-b {
  inset: -20px 75px 25px 30px;
  border-color: rgba(115, 111, 242, 0.14);
  animation: orbitPulse 5s 1.2s ease-in-out infinite;
}

.signal-card {
  position: absolute;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 220px;
  padding: 13px 15px;
  border: 1px solid rgba(116, 203, 219, 0.2);
  border-radius: 13px;
  background: rgba(8, 25, 42, 0.8);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(13px);
}

.signal-card-top {
  top: 72px;
  right: 30px;
}

.signal-card-bottom {
  bottom: 50px;
  left: 12px;
}

.signal-card div:not(.signal-icon) {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.signal-card small {
  color: rgba(255, 255, 255, 0.38);
  font-size: 8px;
  letter-spacing: 0.12em;
}

.signal-card strong {
  margin-top: 2px;
  font-size: 12px;
}

.signal-card b {
  color: var(--cyan);
  font-size: 8px;
  letter-spacing: 0.09em;
}

.signal-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(33, 216, 197, 0.1);
  animation: pulse 2s ease-in-out infinite;
}

.signal-icon {
  color: var(--cyan);
  font-size: 26px;
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: rgba(255, 255, 255, 0.3);
  font-size: 9px;
  letter-spacing: 0.2em;
  transform: translateX(-50%);
}

.hero-scroll span {
  position: relative;
  width: 1px;
  height: 36px;
  margin-bottom: 10px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
}

.hero-scroll span::after {
  position: absolute;
  top: -60%;
  left: 0;
  width: 100%;
  height: 55%;
  background: var(--cyan);
  content: '';
  animation: scrollLine 2s ease-in-out infinite;
}

.capability-rail {
  overflow: hidden;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  background: #f7fafc;
}

.rail-track {
  display: flex;
  width: max-content;
  align-items: center;
  gap: 35px;
  color: #596979;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  animation: ticker 35s linear infinite;
}

.rail-track i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan-deep);
}

.section {
  position: relative;
  overflow: hidden;
  padding: 128px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: end;
  gap: 80px;
  margin-bottom: 70px;
}

.section-heading h2,
.center-heading h2,
.about-copy h2,
.contact-inner h2 {
  margin: 0;
  font-size: clamp(38px, 4.25vw, 58px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.055em;
}

.section-heading h2 span,
.center-heading h2 span,
.about-copy h2 span {
  color: var(--cyan-deep);
}

.section-intro {
  margin: 0 0 5px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 2;
}

.section-shift {
  background: var(--white);
}

.shift-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.shift-card {
  position: relative;
  min-height: 355px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, #fff, #f8fbfd);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.shift-card::after {
  position: absolute;
  right: -70px;
  bottom: -80px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(20, 154, 153, 0.14);
  border-radius: 50%;
  content: '';
  transition: transform 0.4s ease;
}

.shift-card:hover {
  transform: translateY(-8px);
  border-color: rgba(14, 159, 156, 0.32);
  box-shadow: var(--shadow);
}

.shift-card:hover::after {
  transform: scale(1.15);
}

.card-index {
  position: absolute;
  top: 25px;
  right: 27px;
  color: #9aabba;
  font-size: 11px;
  font-weight: 700;
}

.line-icon {
  display: grid;
  width: 50px;
  height: 50px;
  place-items: center;
  border: 1px solid rgba(14, 159, 156, 0.2);
  color: var(--cyan-deep);
  font-size: 27px;
}

.shift-card h3 {
  margin: 70px 0 15px;
  font-size: 21px;
}

.shift-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.card-note {
  position: absolute;
  bottom: 27px;
  color: #9aabba;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.product-section {
  color: var(--white);
  background: var(--night);
}

.product-backdrop {
  position: absolute;
  inset: 0;
  opacity: 0.6;
  background:
    radial-gradient(circle at 70% 36%, rgba(30, 190, 183, 0.12), transparent 28%),
    linear-gradient(115deg, transparent 56%, rgba(80, 100, 220, 0.08));
}

.product-section::before {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  background-image: radial-gradient(rgba(94, 188, 209, 0.55) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: linear-gradient(100deg, transparent, black 60%, transparent);
  content: '';
}

.section-heading-light,
.product-stage {
  position: relative;
  z-index: 1;
}

.section-heading-light h2 span {
  color: var(--cyan);
}

.section-heading-light .section-intro {
  color: rgba(220, 235, 246, 0.65);
}

.product-badge {
  justify-self: end;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.product-badge small {
  color: rgba(255, 255, 255, 0.38);
  font-size: 10px;
  letter-spacing: 0.15em;
}

.product-badge strong {
  color: rgba(255, 255, 255, 0.12);
  font-size: 84px;
  line-height: 1;
  letter-spacing: -0.07em;
}

.product-stage {
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: rgba(9, 26, 45, 0.78);
}

.architecture-intro {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 60px;
  align-items: end;
  padding: 48px 52px 42px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.025), transparent);
}

.architecture-intro-copy {
  max-width: 520px;
}

.stage-label {
  color: var(--cyan);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.architecture-intro h3 {
  margin: 18px 0 14px;
  font-size: 42px;
}

.architecture-intro-copy > p {
  margin: 0;
  color: rgba(220, 235, 246, 0.65);
  font-size: 14px;
}

.architecture-principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(134, 202, 218, 0.13);
  background: rgba(134, 202, 218, 0.13);
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 19px;
  min-height: 92px;
  padding: 18px 20px;
  background: rgba(5, 18, 31, 0.82);
}

.feature-list li > span {
  color: var(--cyan);
  font-size: 10px;
}

.feature-list div {
  display: flex;
  flex-direction: column;
}

.feature-list strong {
  font-size: 14px;
}

.feature-list small {
  color: rgba(255, 255, 255, 0.42);
  font-size: 11px;
}

.operations-loopbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
  padding: 19px 26px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  background: rgba(4, 16, 29, 0.88);
}

.operations-loopbar small {
  color: rgba(140, 187, 207, 0.48);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.operations-loop-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
}

.operations-loop-steps span {
  color: rgba(235, 247, 250, 0.78);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.operations-loop-steps i {
  color: rgba(33, 216, 197, 0.45);
  font-style: normal;
  font-size: 13px;
}

.operations-loopbar b {
  padding: 5px 9px;
  border: 1px solid rgba(33, 216, 197, 0.22);
  color: var(--cyan);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.architecture-canvas {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #07111f;
}

.architecture-canvas::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(4, 13, 25, 0.44), transparent 32%, transparent 72%, rgba(4, 13, 25, 0.34)),
    linear-gradient(to bottom, rgba(4, 13, 25, 0.08), transparent 72%, rgba(4, 13, 25, 0.48));
  content: '';
  pointer-events: none;
}

.architecture-fabric-figure {
  position: absolute;
  inset: 0;
  margin: 0;
}

.architecture-fabric-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.9) brightness(0.82);
}

.architecture-fabric-figure figcaption {
  position: absolute;
  top: 18px;
  right: 22px;
  z-index: 2;
  color: rgba(215, 237, 244, 0.38);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.architecture-layer-labels {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.architecture-layer-tag {
  position: absolute;
  left: 24px;
  display: flex;
  width: min(380px, 32%);
  align-items: center;
  gap: 13px;
  padding: 11px 14px;
  border: 1px solid rgba(101, 174, 213, 0.19);
  border-left: 2px solid rgba(33, 216, 197, 0.62);
  background: rgba(3, 14, 27, 0.76);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(9px);
}

.architecture-layer-tag strong {
  flex: 0 0 auto;
  color: var(--white);
  font-size: 13px;
}

.architecture-layer-tag span {
  color: rgba(216, 235, 243, 0.53);
  font-size: 9px;
  line-height: 1.45;
}

.layer-interaction { top: 10%; }
.layer-application { top: 27%; }
.layer-intelligence { top: 46%; border-left-color: var(--cyan); background: rgba(3, 22, 34, 0.85); }
.layer-data { top: 67%; }
.layer-infrastructure { top: 85%; }

.architecture-side-notes {
  position: absolute;
  top: 31%;
  right: 22px;
  z-index: 3;
  display: flex;
  width: min(245px, 23%);
  flex-direction: column;
  gap: 10px;
}

.architecture-side-notes div {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid rgba(112, 92, 239, 0.2);
  border-right: 2px solid rgba(112, 92, 239, 0.72);
  background: rgba(8, 14, 35, 0.76);
  text-align: right;
  backdrop-filter: blur(9px);
}

.architecture-side-notes strong { color: rgba(244, 240, 255, 0.82); font-size: 12px; }
.architecture-side-notes span { color: rgba(220, 214, 255, 0.47); font-size: 9px; line-height: 1.5; }

.architecture-mobile-map { display: none; }

.architecture-governance-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-dark);
  background: rgba(4, 16, 29, 0.92);
}

.architecture-governance-strip span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 16px 12px;
  border-right: 1px solid var(--line-dark);
  color: rgba(231, 243, 247, 0.68);
  font-size: 9px;
}

.architecture-governance-strip span:last-child { border-right: 0; }
.architecture-governance-strip i { width: 4px; height: 4px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }

.loop-section {
  background: #f6f9fb;
}

.center-heading {
  max-width: 800px;
  margin: 0 auto 70px;
  text-align: center;
}

.center-heading .kicker {
  justify-content: center;
}

.center-heading p:last-child {
  margin: 22px auto 0;
  color: var(--ink-soft);
}

.loop-flow {
  display: grid;
  grid-template-columns: 1fr 46px 1fr 46px 1fr 46px 1fr 46px 1fr;
  align-items: center;
}

.loop-flow article {
  position: relative;
  min-height: 220px;
  padding: 28px 20px;
  border: 1px solid var(--line);
  background: var(--white);
  text-align: center;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.loop-flow article:hover {
  transform: translateY(-6px);
  border-color: rgba(14, 159, 156, 0.34);
}

.loop-flow article > span {
  position: absolute;
  top: 13px;
  left: 15px;
  color: #9bacba;
  font-size: 9px;
}

.flow-icon {
  display: grid;
  width: 50px;
  height: 50px;
  margin: 15px auto 21px;
  place-items: center;
  border-radius: 50%;
  background: rgba(14, 159, 156, 0.08);
  color: var(--cyan-deep);
  font-size: 22px;
}

.loop-flow h3 { margin: 0 0 9px; font-size: 16px; }
.loop-flow p { margin: 0; color: var(--ink-soft); font-size: 11px; line-height: 1.7; }

.loop-flow > i {
  position: relative;
  height: 1px;
  background: rgba(14, 159, 156, 0.25);
}

.loop-flow > i::after {
  position: absolute;
  top: -3px;
  right: 0;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--cyan-deep);
  border-right: 1px solid var(--cyan-deep);
  content: '';
  transform: rotate(45deg);
}

.principle-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 44px;
  border: 1px solid var(--line);
}

.principle-strip span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-right: 1px solid var(--line);
  font-size: 13px;
  font-weight: 700;
}

.principle-strip span:last-child { border-right: 0; }
.principle-strip small { color: #9aacb9; font-size: 8px; letter-spacing: 0.1em; }

.architecture-section {
  background: var(--white);
}

.architecture-board {
  padding: 25px;
  border: 1px solid var(--line);
  background: #f9fbfd;
  box-shadow: var(--shadow);
}

.arch-topline,
.arch-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #758694;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.arch-topline {
  margin-bottom: 21px;
}

.arch-topline b {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan-deep);
}

.arch-topline i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-deep);
  box-shadow: 0 0 8px rgba(14, 159, 156, 0.5);
}

.arch-layer {
  display: grid;
  grid-template-columns: 185px 1fr;
  border: 1px solid var(--line);
  background: var(--white);
}

.layer-title {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 21px;
  border-right: 1px solid var(--line);
}

.layer-title small,
.arch-columns small {
  color: var(--cyan-deep);
  font-size: 8px;
  font-weight: 700;
}

.layer-title strong,
.arch-columns strong {
  margin-top: 3px;
  font-size: 14px;
}

.layer-title span,
.arch-columns span {
  color: #8a9ba8;
  font-size: 8px;
  letter-spacing: 0.08em;
}

.layer-items {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  align-items: center;
  gap: 9px;
  padding: 16px;
}

.layer-items span {
  padding: 13px 8px;
  border: 1px solid rgba(14, 159, 156, 0.16);
  background: rgba(14, 159, 156, 0.035);
  text-align: center;
  font-size: 11px;
}

.arch-connector {
  display: flex;
  height: 30px;
  justify-content: space-around;
  padding-inline: 190px 40px;
}

.arch-connector i {
  width: 1px;
  height: 100%;
  background: linear-gradient(var(--cyan-deep), transparent);
}

.arch-connector.downward {
  padding-inline: 100px;
}

.arch-connector.downward i {
  background: linear-gradient(transparent, var(--cyan-deep));
}

.arch-core {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 23px 28px;
  border: 1px solid rgba(33, 216, 197, 0.26);
  background: linear-gradient(90deg, #092536, #0b3440 52%, #092536);
  color: var(--white);
}

.arch-core div {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.arch-core small { color: rgba(255, 255, 255, 0.4); font-size: 8px; letter-spacing: 0.12em; }
.arch-core strong { font-size: 17px; }
.arch-core > span { color: rgba(255, 255, 255, 0.4); font-size: 8px; letter-spacing: 0.1em; }

.arch-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.arch-columns > div {
  display: flex;
  min-height: 100px;
  flex-direction: column;
  justify-content: center;
  padding: 20px 24px;
  border: 1px solid var(--line);
  background: var(--white);
}

.arch-footer {
  justify-content: flex-start;
  gap: 35px;
  margin-top: 20px;
}

.arch-footer span::before {
  margin-right: 7px;
  color: var(--cyan-deep);
  content: '◆';
  font-size: 6px;
}

.interface-section {
  background: #eff4f7;
}

.interface-tabs {
  display: flex;
  justify-content: center;
  gap: 7px;
  margin-bottom: 28px;
}

.interface-tabs button {
  padding: 11px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  color: #6b7c8a;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
}

.interface-tabs button[aria-selected='true'] {
  border-color: var(--cyan-deep);
  background: var(--night);
  color: var(--white);
}

.screen-shell {
  overflow: hidden;
  border: 1px solid rgba(11, 33, 53, 0.16);
  border-radius: 18px;
  background: #07111f;
  box-shadow: 0 35px 90px rgba(18, 43, 63, 0.2);
}

.screen-chrome {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 44px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
}

.screen-chrome > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.screen-chrome > span:first-child { background: #dc786f; }
.screen-chrome > span:nth-child(2) { background: #d9b765; }
.screen-chrome > span:nth-child(3) { background: #5bbb83; }
.screen-chrome b { margin-left: 15px; font-size: 11px; }
.screen-chrome small { margin-left: auto; color: rgba(255, 255, 255, 0.27); font-size: 8px; letter-spacing: 0.12em; }
.screen-shell [role='tabpanel'] { background: #07111f; }
.screen-shell img { width: 100%; }

.screen-note {
  margin: 18px 0 0;
  color: #81919e;
  font-size: 11px;
  text-align: center;
}

.deployment-section {
  color: var(--white);
  background: linear-gradient(135deg, #07121f, #0b2034);
}

.deployment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--line-dark);
  background: var(--line-dark);
}

.deployment-grid article {
  position: relative;
  min-height: 310px;
  padding: 35px;
  background: #0a1929;
  transition: background 0.3s ease;
}

.deployment-grid article:hover { background: #0b2134; }
.deployment-grid article > span { position: absolute; top: 27px; right: 29px; color: rgba(255, 255, 255, 0.2); font-size: 10px; }
.deployment-icon { display: grid; width: 52px; height: 52px; place-items: center; border: 1px solid rgba(33, 216, 197, 0.25); color: var(--cyan); font-size: 23px; }
.deployment-grid h3 { margin: 70px 0 13px; font-size: 20px; }
.deployment-grid p { margin: 0; color: rgba(220, 235, 246, 0.58); font-size: 13px; }

.about-section {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 90px;
}

.about-copy p:not(.kicker) {
  max-width: 650px;
  margin: 27px 0 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.about-mark {
  position: relative;
  display: flex;
  min-height: 460px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 44%, rgba(33, 216, 197, 0.12), transparent 34%),
    linear-gradient(rgba(10, 31, 52, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 31, 52, 0.05) 1px, transparent 1px);
  background-size: auto, 35px 35px, 35px 35px;
}

.official-logo-stage {
  display: grid;
  width: min(76%, 354px);
  min-height: 270px;
  place-items: center;
}

.official-logo-stage img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 32px rgba(16, 92, 123, 0.12));
}

.about-mark > i { width: 45px; height: 1px; margin: 23px 0; background: rgba(14, 159, 156, 0.5); }
.about-mark > p { margin: 0; color: #8394a1; font-size: 9px; font-weight: 700; letter-spacing: 0.18em; }

.contact-section {
  position: relative;
  overflow: hidden;
  padding: 135px 0;
  color: var(--white);
  background:
    radial-gradient(circle at 50% 20%, rgba(33, 216, 197, 0.1), transparent 34%),
    var(--night);
}

.contact-grid {
  mask-image: radial-gradient(circle at center, black, transparent 70%);
}

.contact-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.contact-inner .kicker { justify-content: center; color: var(--cyan); }
.contact-inner h2 { font-size: clamp(45px, 5.3vw, 70px); }
.contact-inner > p:not(.kicker) { margin: 25px 0 0; color: rgba(255, 255, 255, 0.52); }
.contact-actions { justify-content: center; }

.site-footer {
  color: rgba(255, 255, 255, 0.6);
  background: #040b13;
}

.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 42px;
  padding-bottom: 32px;
}

.footer-main nav {
  display: flex;
  gap: 30px;
  font-size: 12px;
}

.footer-main nav a:hover { color: var(--cyan); }

.footer-bottom {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding-top: 18px;
  padding-bottom: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.3);
  font-size: 10px;
}

.footer-bottom a { color: rgba(255, 255, 255, 0.48); }
.footer-bottom a:hover { color: var(--cyan); }
.footer-bottom span:last-child { justify-self: end; letter-spacing: 0.12em; }

.demo-dialog {
  width: min(520px, calc(100vw - 32px));
  padding: 44px;
  border: 1px solid rgba(33, 216, 197, 0.25);
  border-radius: 20px;
  color: var(--white);
  background: #0a1929;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.55);
  text-align: center;
}

.demo-dialog::backdrop {
  background: rgba(3, 10, 17, 0.76);
  backdrop-filter: blur(6px);
}

.demo-dialog img { margin: 0 auto 20px; }
.demo-dialog .kicker { justify-content: center; color: var(--cyan); }
.demo-dialog h2 { margin: 0; font-size: 28px; }
.demo-dialog p:not(.kicker) { color: rgba(255, 255, 255, 0.62); font-size: 14px; }
.demo-dialog .button { margin-top: 12px; }

.dialog-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  font-size: 23px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

@keyframes pulse {
  0%, 100% { opacity: 0.6; box-shadow: 0 0 0 4px rgba(33, 216, 197, 0.08); }
  50% { opacity: 1; box-shadow: 0 0 0 8px rgba(33, 216, 197, 0.12); }
}

@keyframes orbitPulse {
  0%, 100% { opacity: 0.45; transform: scale(0.99); }
  50% { opacity: 0.9; transform: scale(1.015); }
}

@keyframes scrollLine {
  0% { transform: translateY(0); }
  100% { transform: translateY(290%); }
}

@keyframes ticker { to { transform: translateX(-50%); } }

@media (max-width: 1180px) {
  .hero-layout { grid-template-columns: 0.9fr 1.1fr; }
  .hero-visual { width: 650px; margin-left: -75px; }
  .desktop-nav { gap: 21px; }
  .header-cta { margin-left: 22px; }
  .loop-flow { grid-template-columns: repeat(5, 1fr); gap: 12px; }
  .loop-flow > i { display: none; }
}

@media (max-width: 960px) {
  :root { --container: min(100% - 36px, 760px); }
  .desktop-nav, .header-cta { display: none; }
  .menu-toggle {
    display: flex;
    width: 44px;
    height: 44px;
    margin-left: auto;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 50%;
    background: transparent;
  }
  .menu-toggle span { width: 18px; height: 1px; background: var(--white); transition: transform 0.2s ease; }
  .menu-toggle[aria-expanded='true'] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded='true'] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .mobile-nav {
    display: grid;
    max-height: 0;
    overflow: hidden;
    background: rgba(5, 14, 25, 0.98);
    transition: max-height 0.35s ease;
  }
  .mobile-nav.is-open { max-height: 440px; padding: 10px 18px 28px; }
  .mobile-nav a { padding: 13px 6px; border-bottom: 1px solid rgba(255,255,255,0.08); color: rgba(255,255,255,0.78); font-size: 14px; }
  .hero { min-height: auto; padding-bottom: 70px; }
  .hero-layout { grid-template-columns: 1fr; padding-top: 150px; }
  .hero-copy { max-width: 680px; }
  .hero h1 { font-size: clamp(52px, 8vw, 68px); }
  .hero-visual { width: 100%; margin: 50px 0 0; }
  .hero-scroll { display: none; }
  .section { padding: 95px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 25px; margin-bottom: 48px; }
  .product-badge { display: none; }
  .shift-grid { grid-template-columns: 1fr; }
  .shift-card { min-height: 285px; }
  .architecture-intro { grid-template-columns: 1fr; gap: 28px; }
  .architecture-side-notes { display: none; }
  .architecture-layer-tag { width: min(390px, 42%); }
  .loop-flow { grid-template-columns: repeat(2, 1fr); }
  .principle-strip { grid-template-columns: repeat(2, 1fr); }
  .principle-strip span:nth-child(2) { border-right: 0; }
  .principle-strip span:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .arch-layer { grid-template-columns: 1fr; }
  .layer-title { border-right: 0; border-bottom: 1px solid var(--line); }
  .layer-items { grid-template-columns: repeat(3, 1fr); }
  .arch-connector { padding-inline: 60px; }
  .arch-core > span { display: none; }
  .deployment-grid { grid-template-columns: 1fr; }
  .deployment-grid article { min-height: 260px; }
  .about-grid { grid-template-columns: 1fr; gap: 55px; }
  .about-mark { min-height: 390px; }
}

@media (max-width: 620px) {
  :root { --container: calc(100% - 32px); }
  .header-inner { min-height: 70px; }
  .official-mark-header { --mark-width: 45px; }
  .brand-copy strong { font-size: 16px; }
  .hero-layout { padding-top: 125px; }
  .hero h1 { font-size: clamp(42px, 12vw, 56px); }
  .hero-lead { font-size: 15px; }
  .hero-actions, .contact-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .hero-trust { flex-wrap: wrap; gap: 10px 18px; }
  .hero-visual { margin-top: 38px; }
  .hero-image-shell { border-radius: 30% 30% 10% 10% / 20% 20% 10% 10%; }
  .hero-image-shell img { height: 390px; object-position: 69% center; }
  .signal-card { min-width: 190px; }
  .signal-card-top { top: 25px; right: -5px; }
  .signal-card-bottom { bottom: 15px; left: -3px; }
  .section { padding: 78px 0; }
  .section-heading h2, .center-heading h2, .about-copy h2, .contact-inner h2 { font-size: 37px; }
  .product-section .section-heading h2 { font-size: 32px; line-height: 1.32; }
  .architecture-intro { gap: 24px; padding: 34px 24px 30px; }
  .architecture-intro h3 { font-size: 34px; }
  .architecture-principles { grid-template-columns: 1fr; }
  .feature-list li { min-height: 78px; padding: 15px 17px; }
  .operations-loopbar { grid-template-columns: 1fr; gap: 12px; padding: 18px; }
  .operations-loop-steps { flex-wrap: wrap; justify-content: flex-start; gap: 8px 12px; }
  .operations-loop-steps i { display: none; }
  .operations-loopbar b { justify-self: start; }
  .architecture-canvas { aspect-ratio: 1 / 1; }
  .architecture-fabric-figure img { object-position: center; }
  .architecture-fabric-figure figcaption { top: auto; right: 14px; bottom: 12px; left: 14px; font-size: 7px; text-align: center; }
  .architecture-layer-labels, .architecture-side-notes { display: none; }
  .architecture-mobile-map { display: grid; border-top: 1px solid var(--line-dark); background: rgba(4, 16, 29, 0.94); }
  .architecture-mobile-map article { display: flex; align-items: center; gap: 16px; padding: 16px 18px; border-bottom: 1px solid var(--line-dark); }
  .architecture-mobile-map article:last-child { border-bottom: 0; }
  .architecture-mobile-map article > span { color: var(--cyan); font-size: 9px; }
  .architecture-mobile-map article > div { display: flex; flex-direction: column; gap: 3px; }
  .architecture-mobile-map strong { font-size: 13px; }
  .architecture-mobile-map small { color: rgba(220, 235, 246, 0.45); font-size: 10px; }
  .architecture-governance-strip { grid-template-columns: repeat(2, 1fr); }
  .architecture-governance-strip span { min-height: 48px; border-bottom: 1px solid var(--line-dark); }
  .architecture-governance-strip span:nth-child(2) { border-right: 0; }
  .architecture-governance-strip span:nth-last-child(-n+2) { border-bottom: 0; }
  .loop-flow { grid-template-columns: 1fr; }
  .loop-flow article { min-height: 190px; }
  .principle-strip { grid-template-columns: 1fr; }
  .principle-strip span { border-right: 0; border-bottom: 1px solid var(--line); }
  .principle-strip span:last-child { border-bottom: 0; }
  .architecture-board { padding: 14px; overflow: hidden; }
  .layer-items { grid-template-columns: repeat(2, 1fr); }
  .arch-core { padding: 18px; }
  .arch-core img { width: 34px; }
  .arch-core strong { font-size: 13px; }
  .arch-columns { grid-template-columns: 1fr; }
  .arch-connector { height: 18px; }
  .arch-footer { flex-wrap: wrap; gap: 12px 20px; }
  .screen-chrome small { display: none; }
  .about-mark { min-height: 340px; }
  .official-logo-stage { width: min(78%, 300px); min-height: 220px; }
  .contact-section { padding: 95px 0; }
  .footer-main { align-items: flex-start; flex-direction: column; gap: 30px; }
  .footer-main nav { flex-wrap: wrap; gap: 15px 24px; }
  .footer-bottom { grid-template-columns: 1fr; gap: 9px; }
  .footer-bottom span:last-child { justify-self: start; }
  .demo-dialog { padding: 38px 24px 28px; }
}

@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 { opacity: 1; transform: none; }
}