:root {
  --navy-950: #061326;
  --navy-900: #07162a;
  --navy-850: #0b1d36;
  --navy-800: #102746;
  --ink: #09182d;
  --steel: #7d899b;
  --steel-light: #a8b2c1;
  --paper: #f3f6fa;
  --white: #ffffff;
  --signal: #f4b900;
  --line-dark: rgba(255, 255, 255, 0.18);
  --line-light: #cfd6df;
  --line-soft: #e2e7ed;
  --header-height: 78px;
  --shell: 1280px;
  --font-sans: "SF Pro Display", "Helvetica Neue", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  --font-mono: "SFMono-Regular", "Roboto Mono", "Liberation Mono",
    Menlo, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

h1,
h2,
h3,
p,
figure,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

button {
  font: inherit;
}

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

img {
  height: auto;
}

:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

.shell {
  width: min(100% - 64px, var(--shell));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 20px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--navy-950);
  background: var(--signal);
  font-weight: 700;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  color: var(--white);
  border-bottom: 1px solid var(--line-dark);
  background: rgba(6, 19, 38, 0.76);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: background-color 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(6, 19, 38, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 38px;
  height: 38px;
}

.brand-copy {
  display: grid;
  line-height: 1.15;
}

.brand-copy strong {
  font-size: 17px;
  letter-spacing: 0.035em;
}

.brand-copy small {
  margin-top: 5px;
  color: var(--steel-light);
  font-size: 10px;
  letter-spacing: 0.035em;
}

.site-nav {
  display: flex;
  align-items: stretch;
  align-self: stretch;
  gap: 0;
}

.site-nav a {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 92px;
  padding: 0 14px;
  color: #b8c1cf;
  border-left: 1px solid transparent;
  border-right: 1px solid transparent;
  font-size: 14px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.site-nav a::after {
  position: absolute;
  right: 14px;
  bottom: 0;
  left: 14px;
  height: 3px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ease);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--white);
  border-color: var(--line-dark);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--white);
  border: 1px solid var(--line-dark);
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 19px;
  height: 1px;
  margin: 0 auto;
  background: currentColor;
  transition: transform 0.25s ease;
}

.nav-toggle span + span {
  margin-top: 7px;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 900px;
  padding-top: var(--header-height);
  color: var(--white);
  background: var(--navy-950);
}

.hero-grid,
.closing-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(90deg, #000, transparent 72%);
  mask-image: linear-gradient(90deg, #000, transparent 72%);
}

.hero-layout {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 640px;
  border-right: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}

.hero-copy {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  justify-content: center;
  padding: 82px 48px 78px;
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(48px, 5vw, 72px);
  font-weight: 750;
  letter-spacing: -0.06em;
  line-height: 1.08;
}

.signal-rule {
  display: block;
  width: 48px;
  height: 6px;
  margin: 38px 0 32px;
  background: var(--signal);
}

.hero-copy > p {
  max-width: 600px;
  color: #c7cfda;
  font-size: 18px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: color 0.2s ease, background-color 0.2s ease,
    border-color 0.2s ease;
}

.button svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: square;
  stroke-linejoin: miter;
  transition: transform 0.25s var(--ease);
}

.button:hover svg {
  transform: translateX(4px);
}

.button--signal {
  color: var(--navy-950);
  background: var(--signal);
}

.button--signal:hover {
  background: #ffd33d;
}

.text-link {
  position: relative;
  color: var(--white);
  font-size: 14px;
}

.text-link::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: var(--steel);
  content: "";
  transition: background-color 0.2s ease;
}

.text-link:hover::after {
  background: var(--signal);
}

.hero-media {
  position: relative;
  overflow: hidden;
  min-height: 640px;
  border-left: 1px solid var(--line-dark);
  background: #050b12;
}

.hero-media picture,
.hero-media img {
  width: 100%;
  height: 100%;
}

.hero-media img {
  object-fit: cover;
  object-position: 53% center;
  animation: hero-image-in 1s var(--ease) both;
}

@keyframes hero-image-in {
  from {
    opacity: 0;
    transform: scale(1.035);
    clip-path: inset(0 0 0 100%);
  }
  to {
    opacity: 1;
    transform: scale(1);
    clip-path: inset(0);
  }
}

.hero-media figcaption,
.product-image figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: space-between;
  padding: 12px 16px;
  color: #d5dbe3;
  border-top: 1px solid var(--line-dark);
  background: rgba(5, 11, 18, 0.88);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.product-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line-dark);
  border-bottom: 0;
}

.product-rail a {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 22px;
  min-height: 156px;
  padding: 28px 34px;
  transition: background-color 0.25s ease;
}

.product-rail a + a {
  border-left: 1px solid var(--line-dark);
}

.product-rail a:hover {
  background: rgba(255, 255, 255, 0.055);
}

.rail-number {
  color: #68758a;
  font-family: var(--font-mono);
  font-size: 40px;
  line-height: 1;
}

.product-rail a > span:last-child {
  display: grid;
  gap: 6px;
}

.product-rail strong {
  font-size: 17px;
  letter-spacing: 0.02em;
}

.product-rail small {
  color: var(--steel-light);
  font-size: 12px;
}

.section {
  padding: 128px 0;
}

.company-intro {
  background: var(--paper);
}

.intro-grid {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  padding-bottom: 86px;
  border-bottom: 1px solid var(--line-light);
}

.section-index {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  justify-content: space-between;
  min-height: 310px;
  padding-right: 36px;
  border-right: 1px solid var(--line-light);
}

.section-index span {
  font-family: var(--font-mono);
  font-size: 82px;
  font-weight: 300;
  letter-spacing: -0.09em;
  line-height: 0.9;
}

.section-index small,
.section-code,
.focus-meta {
  color: #5f6c7f;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.intro-content {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 76px;
  padding-left: 72px;
}

.intro-content h2,
.section-heading h2,
.closing-layout h2 {
  max-width: 760px;
  font-size: clamp(40px, 4.15vw, 60px);
  font-weight: 720;
  letter-spacing: -0.055em;
  line-height: 1.12;
}

.intro-copy {
  align-self: end;
  color: #3e4a5c;
  font-size: 17px;
  line-height: 1.9;
}

.intro-copy p + p {
  margin-top: 22px;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding-top: 46px;
}

.principle-list article {
  padding: 12px 40px 8px 0;
}

.principle-list article + article {
  padding-left: 40px;
  border-left: 1px solid var(--line-light);
}

.principle-list span,
.focus-number {
  color: #758296;
  font-family: var(--font-mono);
  font-size: 13px;
}

.principle-list h3,
.focus-list h3,
.process-track h3 {
  margin-top: 30px;
  font-size: 21px;
  letter-spacing: -0.02em;
}

.principle-list p,
.focus-list p,
.process-track p {
  margin-top: 15px;
  color: #596679;
  line-height: 1.8;
}

.business-section {
  background: #e9eef4;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: end;
  gap: 72px;
  padding-bottom: 56px;
  border-bottom: 1px solid #aeb9c8;
}

.section-code {
  display: block;
  margin-bottom: 28px;
}

.section-heading > p {
  color: #536074;
  font-size: 17px;
  line-height: 1.85;
}

.focus-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid #aeb9c8;
}

.focus-list article {
  position: relative;
  min-height: 370px;
  padding: 42px 30px 40px 0;
}

.focus-list article + article {
  padding-left: 30px;
  border-left: 1px solid #aeb9c8;
}

.focus-list h3 {
  margin-top: 64px;
  font-size: 25px;
}

.focus-list p {
  max-width: 330px;
  font-size: 16px;
}

.focus-meta {
  position: absolute;
  right: 30px;
  bottom: 34px;
  left: 0;
}

.focus-list article + article .focus-meta {
  left: 30px;
}

.products-section {
  color: var(--white);
  background: var(--navy-950);
}

.section-heading--dark {
  border-color: var(--line-dark);
}

.section-heading--dark .section-code,
.section-heading--dark > p {
  color: var(--steel-light);
}

.product-story {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  align-items: stretch;
  min-height: 610px;
  border-bottom: 1px solid var(--line-dark);
}

.product-story--reverse {
  grid-template-columns: 1.15fr 0.85fr;
}

.product-story--reverse .product-copy {
  order: 2;
  border-right: 0;
  border-left: 1px solid var(--line-dark);
}

.product-story--reverse .product-image {
  order: 1;
}

.product-copy {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  justify-content: center;
  padding: 70px 62px 70px 0;
  border-right: 1px solid var(--line-dark);
}

.product-story--reverse .product-copy {
  padding-right: 0;
  padding-left: 62px;
}

.product-label {
  display: flex;
  align-items: baseline;
  gap: 20px;
  color: var(--steel-light);
  font-family: var(--font-mono);
}

.product-label span {
  color: var(--signal);
  font-size: 32px;
}

.product-label small {
  font-size: 10px;
  letter-spacing: 0.13em;
}

.product-name {
  margin-top: 44px;
  color: var(--signal);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.product-copy h3,
.transformation h3 {
  max-width: 560px;
  margin-top: 13px;
  font-size: clamp(32px, 3.2vw, 46px);
  letter-spacing: -0.045em;
  line-height: 1.18;
}

.product-description,
.transformation-copy > p:last-child {
  max-width: 580px;
  margin-top: 28px;
  color: #aeb8c6;
  font-size: 16px;
  line-height: 1.9;
}

.product-context {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: 100%;
  margin-top: 30px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.product-context > div {
  display: grid;
  gap: 7px;
  min-height: 92px;
  padding: 16px 18px 16px 0;
}

.product-context > div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line-dark);
}

.product-context span {
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.product-context strong {
  color: #d4dae2;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.65;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: 100%;
  margin-top: 28px;
  border-top: 1px solid var(--line-dark);
}

.feature-grid li {
  position: relative;
  padding: 13px 10px 13px 18px;
  color: #d4dae2;
  border-bottom: 1px solid var(--line-dark);
  font-size: 13px;
}

.feature-grid li:nth-child(odd) {
  border-right: 1px solid var(--line-dark);
}

.feature-grid li::before {
  position: absolute;
  top: 22px;
  left: 0;
  width: 5px;
  height: 5px;
  background: var(--signal);
  content: "";
}

.product-image {
  position: relative;
  overflow: hidden;
  min-height: 610px;
  background: #03070d;
}

.product-image picture,
.product-image img {
  width: 100%;
  height: 100%;
}

.product-image img {
  object-fit: cover;
  transition: transform 0.9s var(--ease);
}

.product-story:hover .product-image img {
  transform: scale(1.018);
}

.product-image figcaption {
  justify-content: flex-start;
}

.transformation {
  margin-top: 96px;
  padding: 70px;
  border: 1px solid var(--line-dark);
  background: var(--navy-850);
}

.transformation-copy {
  display: grid;
  grid-template-columns: 0.9fr 1.2fr;
  column-gap: 70px;
}

.transformation-copy .product-label {
  grid-column: 1;
}

.transformation-copy .product-name {
  grid-column: 1;
}

.transformation-copy h3 {
  grid-column: 1;
}

.transformation-copy > p:last-child {
  grid-column: 2;
  grid-row: 1 / span 3;
  align-self: end;
  margin-top: 0;
  padding-left: 50px;
  border-left: 1px solid var(--line-dark);
}

.system-flow {
  display: grid;
  grid-template-columns: 1fr 56px 1fr 56px 1fr 56px 1fr;
  align-items: center;
  gap: 12px;
  margin-top: 74px;
}

.system-flow > div {
  min-height: 144px;
  padding: 22px;
  border-top: 2px solid var(--signal);
  background: rgba(255, 255, 255, 0.035);
}

.system-flow span {
  display: block;
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.system-flow strong {
  display: block;
  margin-top: 25px;
  font-size: 18px;
}

.system-flow small {
  display: block;
  margin-top: 5px;
  color: var(--steel-light);
  font-size: 12px;
}

.system-flow > svg {
  width: 56px;
  fill: none;
  stroke: #69768a;
  stroke-width: 1.2;
}

.service-capabilities {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin-top: 46px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.service-capabilities li {
  padding: 18px 16px;
  color: #d9dee6;
  text-align: center;
  font-size: 13px;
}

.service-capabilities li + li {
  border-left: 1px solid var(--line-dark);
}

.advisory-service {
  margin-top: 30px;
  padding: 70px;
  border: 1px solid var(--line-dark);
  background: linear-gradient(145deg, #0c1e35 0%, #071426 68%, #091a2d 100%);
}

.advisory-head {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 72px;
  padding-bottom: 62px;
  border-bottom: 1px solid var(--line-dark);
}

.advisory-head h3 {
  max-width: 580px;
  margin-top: 13px;
  font-size: clamp(32px, 3.2vw, 46px);
  letter-spacing: -0.045em;
  line-height: 1.18;
}

.advisory-intro {
  align-self: end;
  padding-left: 50px;
  color: #b5bfcd;
  border-left: 1px solid var(--line-dark);
  font-size: 16px;
  line-height: 1.9;
}

.advisory-intro p + p {
  margin-top: 20px;
}

.advisory-scope {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line-dark);
}

.advisory-scope article {
  min-height: 245px;
  padding: 34px 32px 32px;
  border-top: 1px solid var(--line-dark);
  border-right: 1px solid var(--line-dark);
}

.advisory-scope article:nth-child(3n) {
  border-right: 0;
}

.advisory-scope span {
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.11em;
}

.advisory-scope h4 {
  margin-top: 38px;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.advisory-scope p {
  margin-top: 14px;
  color: #9eabba;
  font-size: 14px;
  line-height: 1.8;
}

.advisory-deliverables {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
  margin-top: 62px;
}

.advisory-deliverables h4 {
  max-width: 440px;
  font-size: 27px;
  letter-spacing: -0.03em;
  line-height: 1.35;
}

.advisory-deliverables ul {
  border-top: 1px solid var(--line-dark);
}

.advisory-deliverables li {
  position: relative;
  padding: 14px 10px 14px 22px;
  color: #d6dce5;
  border-bottom: 1px solid var(--line-dark);
  font-size: 14px;
}

.advisory-deliverables li::before {
  position: absolute;
  top: 23px;
  left: 0;
  width: 5px;
  height: 5px;
  background: var(--signal);
  content: "";
}

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

.process-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 0;
  border-bottom: 1px solid var(--line-light);
}

.process-track::before {
  position: absolute;
  top: 71px;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--ink);
  content: "";
}

.process-track li {
  position: relative;
  min-height: 320px;
  padding: 42px 42px 40px 0;
}

.process-track li + li {
  padding-left: 42px;
  border-left: 1px solid var(--line-light);
}

.process-track li::before {
  position: absolute;
  top: 65px;
  left: 0;
  width: 13px;
  height: 13px;
  border: 3px solid var(--white);
  background: var(--signal);
  box-shadow: 0 0 0 1px var(--ink);
  content: "";
}

.process-track li + li::before {
  left: 42px;
}

.process-track span {
  font-family: var(--font-mono);
  font-size: 14px;
}

.process-track h3 {
  margin-top: 76px;
}

.closing-section {
  position: relative;
  overflow: hidden;
  padding: 116px 0;
  color: var(--white);
  background: var(--navy-950);
}

.closing-layout {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: end;
  gap: 100px;
}

.closing-layout .section-code {
  color: var(--steel-light);
}

.closing-layout h2 {
  font-size: clamp(48px, 5.3vw, 76px);
}

.closing-layout > div > p {
  max-width: 620px;
  margin-top: 34px;
  color: #b8c2d0;
  font-size: 17px;
}

.company-info {
  border-top: 1px solid var(--line-dark);
}

.company-info > div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-dark);
}

.company-info dt {
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.company-info dd {
  color: #dbe1e8;
  font-size: 14px;
  line-height: 1.8;
}

.company-info address {
  font-style: normal;
}

.company-info a {
  color: #ffffff;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.company-info a:hover {
  color: var(--signal);
}

.site-footer {
  color: #8995a7;
  background: #030b17;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding-right: 76px;
  gap: 20px;
  font-size: 12px;
}

.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 80;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  color: var(--navy-950);
  border: 0;
  background: var(--signal);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.2s ease, transform 0.25s var(--ease),
    background-color 0.2s ease;
}

.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.to-top:hover {
  background: #ffd33d;
}

.to-top svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

@media (max-width: 1100px) {
  :root {
    --shell: 980px;
  }

  .site-nav a {
    min-width: auto;
    padding: 0 10px;
    font-size: 13px;
  }

  .hero-layout {
    grid-template-columns: 1fr 1fr;
  }

  .hero-copy {
    padding-right: 42px;
    padding-left: 36px;
  }

  .hero h1 {
    font-size: clamp(44px, 5.7vw, 64px);
  }

  .product-rail a {
    padding-right: 22px;
    padding-left: 22px;
  }

  .product-rail {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-rail a:nth-child(3) {
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .product-rail a:nth-child(4) {
    border-top: 1px solid var(--line-dark);
  }

  .rail-number {
    font-size: 32px;
  }

  .focus-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .focus-list article:nth-child(3) {
    padding-left: 0;
    border-top: 1px solid #aeb9c8;
    border-left: 0;
  }

  .focus-list article:nth-child(4) {
    border-top: 1px solid #aeb9c8;
  }

  .focus-list article:nth-child(3) .focus-meta {
    left: 0;
  }

  .intro-content {
    gap: 44px;
    padding-left: 50px;
  }

  .product-story,
  .product-story--reverse {
    grid-template-columns: 1fr 1fr;
  }

  .product-copy,
  .product-story--reverse .product-copy {
    padding: 54px 38px;
  }

  .transformation {
    padding: 52px 44px;
  }

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

  .system-flow > svg {
    display: none;
  }

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

  .service-capabilities li:nth-child(4) {
    border-left: 0;
    border-top: 1px solid var(--line-dark);
  }

  .service-capabilities li:nth-child(5) {
    border-top: 1px solid var(--line-dark);
  }

  .service-capabilities li:nth-child(6) {
    border-top: 1px solid var(--line-dark);
  }

  .advisory-service {
    padding: 52px 44px;
  }

  .advisory-head,
  .advisory-deliverables {
    gap: 44px;
  }

  .advisory-scope article {
    padding-right: 24px;
    padding-left: 24px;
  }
}

@media (max-width: 820px) {
  :root {
    --header-height: 68px;
  }

  .shell {
    width: min(100% - 40px, var(--shell));
  }

  .site-header {
    height: var(--header-height);
  }

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

  .brand-copy small {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-height) 0 auto;
    display: grid;
    align-content: start;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    border-bottom: 1px solid transparent;
    background: var(--navy-950);
    transition: max-height 0.35s var(--ease), border-color 0.2s ease;
  }

  .site-nav.is-open {
    max-height: calc(100vh - var(--header-height));
    border-color: var(--line-dark);
  }

  .site-nav a {
    display: flex;
    min-height: 60px;
    padding: 0 20px;
    border: 0;
    border-bottom: 1px solid var(--line-dark);
    font-size: 15px;
  }

  .site-nav a::after {
    top: 0;
    right: auto;
    bottom: 0;
    left: 0;
    width: 4px;
    height: auto;
    transform: scaleY(0);
    transform-origin: top;
  }

  .site-nav a:hover::after,
  .site-nav a[aria-current="page"]::after {
    transform: scaleY(1);
  }

  .hero {
    min-height: auto;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    border-right: 0;
    border-left: 0;
  }

  .hero-copy {
    min-height: 600px;
    padding: 90px 0 72px;
  }

  .hero h1 {
    font-size: clamp(46px, 10vw, 66px);
  }

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

  .hero-media {
    min-height: 520px;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .product-rail {
    grid-template-columns: 1fr;
    border-right: 0;
    border-left: 0;
  }

  .product-rail a {
    min-height: 112px;
  }

  .product-rail a + a {
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .product-rail a:nth-child(4) {
    border-left: 0;
  }

  .section {
    padding: 92px 0;
  }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 50px;
    padding-bottom: 64px;
  }

  .section-index {
    align-items: center;
    flex-direction: row;
    min-height: auto;
    padding: 0 0 24px;
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .section-index span {
    font-size: 58px;
  }

  .intro-content {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-left: 0;
  }

  .principle-list {
    grid-template-columns: 1fr;
  }

  .principle-list article,
  .principle-list article + article {
    padding: 32px 0;
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .principle-list h3 {
    margin-top: 18px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-heading > p {
    max-width: 650px;
  }

  .focus-list {
    grid-template-columns: 1fr;
  }

  .focus-list article,
  .focus-list article + article,
  .focus-list article:nth-child(3),
  .focus-list article:nth-child(4) {
    min-height: 260px;
    padding: 36px 0;
    border-top: 1px solid #aeb9c8;
    border-left: 0;
  }

  .focus-list h3 {
    margin-top: 40px;
  }

  .focus-meta,
  .focus-list article + article .focus-meta,
  .focus-list article:nth-child(3) .focus-meta {
    right: 0;
    bottom: 30px;
    left: 0;
  }

  .product-story,
  .product-story--reverse {
    grid-template-columns: 1fr;
  }

  .product-copy,
  .product-story--reverse .product-copy {
    order: 1;
    padding: 64px 0;
    border-right: 0;
    border-left: 0;
  }

  .product-image,
  .product-story--reverse .product-image {
    order: 2;
    min-height: 500px;
  }

  .transformation {
    margin-top: 72px;
    padding: 46px 30px;
  }

  .transformation-copy {
    grid-template-columns: 1fr;
  }

  .transformation-copy .product-label,
  .transformation-copy .product-name,
  .transformation-copy h3,
  .transformation-copy > p:last-child {
    grid-column: 1;
  }

  .transformation-copy > p:last-child {
    grid-row: auto;
    margin-top: 32px;
    padding: 30px 0 0;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .system-flow {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 52px;
  }

  .service-capabilities {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-capabilities li:nth-child(odd) {
    border-left: 0;
  }

  .service-capabilities li:nth-child(n + 3) {
    border-top: 1px solid var(--line-dark);
  }

  .advisory-service {
    margin-top: 24px;
    padding: 46px 30px;
  }

  .advisory-head,
  .advisory-deliverables {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .advisory-intro {
    padding: 30px 0 0;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .advisory-scope {
    grid-template-columns: repeat(2, 1fr);
  }

  .advisory-scope article:nth-child(3n) {
    border-right: 1px solid var(--line-dark);
  }

  .advisory-scope article:nth-child(2n) {
    border-right: 0;
  }

  .process-track {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-track::before {
    display: none;
  }

  .process-track li,
  .process-track li + li {
    min-height: 280px;
    padding: 36px 30px 36px 0;
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .process-track li:nth-child(even) {
    padding-right: 0;
    padding-left: 30px;
    border-left: 1px solid var(--line-light);
  }

  .process-track li::before,
  .process-track li + li::before {
    display: none;
  }

  .process-track h3 {
    margin-top: 40px;
  }

  .closing-layout {
    grid-template-columns: 1fr;
    gap: 72px;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 32px, var(--shell));
  }

  .brand-copy strong {
    font-size: 16px;
  }

  .hero-copy {
    min-height: 560px;
    padding: 72px 0 60px;
  }

  .hero h1 {
    font-size: clamp(42px, 13vw, 58px);
    letter-spacing: -0.07em;
  }

  .signal-rule {
    margin: 30px 0 24px;
  }

  .hero-copy > p {
    font-size: 16px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 24px;
  }

  .hero-media {
    min-height: 390px;
  }

  .hero-media img {
    object-position: 60% center;
  }

  .hero-media figcaption span:first-child {
    display: none;
  }

  .product-rail a {
    grid-template-columns: 56px 1fr;
    gap: 10px;
    padding: 24px 12px;
  }

  .rail-number {
    font-size: 26px;
  }

  .section {
    padding: 76px 0;
  }

  .intro-content h2,
  .section-heading h2,
  .closing-layout h2 {
    font-size: clamp(36px, 10.5vw, 48px);
  }

  .focus-list article,
  .focus-list article + article {
    min-height: 290px;
  }

  .product-copy h3,
  .transformation h3 {
    font-size: 34px;
  }

  .product-image,
  .product-story--reverse .product-image {
    min-height: 330px;
  }

  .product-image img {
    object-position: 60% center;
  }

  .product-context {
    grid-template-columns: 1fr;
  }

  .product-context > div,
  .product-context > div + div {
    min-height: auto;
    padding: 15px 0;
    border-left: 0;
  }

  .product-context > div + div {
    border-top: 1px solid var(--line-dark);
  }

  .transformation {
    margin-inline: -4px;
    padding: 40px 22px;
  }

  .system-flow {
    grid-template-columns: 1fr;
  }

  .system-flow > div {
    min-height: 120px;
  }

  .service-capabilities {
    grid-template-columns: 1fr;
  }

  .service-capabilities li,
  .service-capabilities li + li {
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .advisory-service {
    padding: 38px 22px;
  }

  .advisory-head h3 {
    font-size: 34px;
  }

  .advisory-scope {
    grid-template-columns: 1fr;
  }

  .advisory-scope article,
  .advisory-scope article:nth-child(2n),
  .advisory-scope article:nth-child(3n) {
    min-height: auto;
    padding: 30px 0;
    border-right: 0;
  }

  .advisory-scope h4 {
    margin-top: 24px;
  }

  .advisory-deliverables {
    margin-top: 48px;
  }

  .process-track {
    grid-template-columns: 1fr;
  }

  .process-track li,
  .process-track li + li,
  .process-track li:nth-child(even) {
    min-height: 240px;
    padding: 32px 0;
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .closing-section {
    padding: 88px 0;
  }

  .company-info > div {
    grid-template-columns: 68px 1fr;
    gap: 16px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    min-height: 104px;
    gap: 6px;
  }

  .to-top {
    right: 16px;
    bottom: 16px;
  }
}

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

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