:root {
  color-scheme: dark;
  --ink: #11130f;
  --ink-raised: #171a16;
  --paper: #f3f5ec;
  --muted: #aab0a2;
  --signal: #d7ff3f;
  --line: rgba(243, 245, 236, 0.16);
  --line-strong: rgba(243, 245, 236, 0.34);
  --header-height: 72px;
  --page-pad: 48px;
  --max-width: 1500px;
  --sans: "Arial Narrow", "Roboto Condensed", "Noto Sans SC", "Microsoft YaHei UI", Arial, sans-serif;
  --mono: "Cascadia Mono", "Roboto Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
}

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 {
  color: inherit;
  font: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}

[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  background: var(--signal);
  color: var(--ink);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto minmax(120px, 1fr);
  align-items: center;
  min-height: var(--header-height);
  padding: 0 var(--page-pad);
  border-bottom: 1px solid var(--line);
  background: rgba(17, 19, 15, 0.78);
  backdrop-filter: blur(18px);
  transition: background-color 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(17, 19, 15, 0.96);
  border-color: var(--line-strong);
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--signal);
  color: var(--signal);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
}

.brand-copy {
  display: grid;
  line-height: 1.1;
}

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

.brand-copy small {
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  height: var(--header-height);
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 100%;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 160ms ease;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover {
  color: var(--paper);
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.language-switcher {
  display: flex;
  justify-self: end;
  align-items: center;
  gap: 7px;
  color: #70766a;
  font-family: var(--mono);
  font-size: 12px;
}

.lang-switch {
  padding: 6px 4px;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.lang-switch.is-active {
  color: var(--signal);
}

.menu-toggle {
  display: none;
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 84svh;
  padding: calc(var(--header-height) + 76px) var(--page-pad) 76px;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -3;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-shield {
  position: absolute;
  inset: 0 auto 0 0;
  z-index: -2;
  width: 63%;
  background: rgba(17, 19, 15, 0.68);
  clip-path: polygon(0 0, 84% 0, 100% 100%, 0 100%);
}

.hero-grid {
  position: absolute;
  inset: var(--header-height) 0 0;
  z-index: -1;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  margin: 0 var(--page-pad);
  pointer-events: none;
}

.hero-grid::before,
.hero-grid::after {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line);
  content: "";
}

.hero-grid::before {
  left: 31%;
}

.hero-grid::after {
  left: 68%;
}

.hero-content {
  width: min(840px, 66%);
  max-width: var(--max-width);
}

.eyebrow,
.section-index,
.item-code,
.image-label,
.hero-coordinate,
.contact-topline {
  font-family: var(--mono);
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0 0 28px;
  color: var(--signal);
  font-size: 12px;
}

.signal-dot {
  width: 7px;
  height: 7px;
  background: var(--signal);
  box-shadow: 0 0 0 5px rgba(215, 255, 63, 0.12);
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: 68px;
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero h1 > span {
  display: block;
}

html[lang="en"] .hero h1 {
  max-width: 1050px;
  font-size: 50px;
}

html[lang="en"] .hero h1 > span[data-lang="en"] {
  font-size: 50px;
  line-height: 1.04;
}

html[lang="en"] .hero-content {
  width: min(1050px, 76%);
}

.hero-lead {
  max-width: 640px;
  margin: 30px 0 0;
  color: #d8dbd0;
  font-size: 20px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-width: 166px;
  min-height: 48px;
  padding: 11px 15px 11px 18px;
  border-radius: 4px;
  font-weight: 700;
}

.button-primary {
  background: var(--signal);
  color: var(--ink);
}

.button-arrow {
  font-size: 20px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line-strong);
  color: var(--paper);
  font-weight: 600;
}

.hero-coordinate {
  position: absolute;
  right: var(--page-pad);
  bottom: 40px;
  display: grid;
  justify-items: end;
  color: var(--muted);
  font-size: 10px;
}

.hero-coordinate strong {
  margin-top: 3px;
  color: var(--paper);
  font-family: var(--sans);
  font-size: 13px;
}

.operations-rail {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(0, 2.4fr);
  min-height: 136px;
  border-bottom: 1px solid var(--line);
  background: var(--ink-raised);
}

.rail-heading {
  display: grid;
  align-content: center;
  padding: 26px var(--page-pad);
  border-right: 1px solid var(--line);
}

.rail-heading span {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 10px;
}

.rail-heading strong {
  margin-top: 7px;
  font-size: 16px;
}

.rail-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0;
  margin: 0;
  list-style: none;
}

.rail-steps li {
  display: grid;
  align-content: center;
  gap: 8px;
  min-width: 0;
  padding: 24px 28px;
  border-right: 1px solid var(--line);
}

.rail-steps li:last-child {
  border-right: 0;
}

.rail-steps span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
}

.rail-steps b {
  font-size: 17px;
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 150px var(--page-pad);
}

.section-index {
  margin: 0 0 20px;
  color: var(--signal);
  font-size: 11px;
  font-weight: 700;
}

.section-index.dark {
  color: #38400f;
}

.section h2,
.scope h2,
.contact h2 {
  margin: 0;
  font-size: 52px;
  line-height: 1.12;
  letter-spacing: 0;
  text-wrap: balance;
}

.capabilities {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(520px, 1.4fr);
  gap: 100px;
}

.section-intro {
  position: sticky;
  top: 120px;
  align-self: start;
}

.section-intro h2 {
  max-width: 520px;
}

.section-intro > p:last-child {
  max-width: 500px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.capability-list {
  border-top: 1px solid var(--line-strong);
}

.capability-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 130px;
  gap: 24px;
  align-items: start;
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
}

.item-number {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 12px;
}

.capability-item h3 {
  margin: 0;
  font-size: 25px;
}

.capability-item p {
  max-width: 630px;
  margin: 12px 0 0;
  color: var(--muted);
}

.item-code {
  justify-self: end;
  padding-top: 7px;
  color: #6d7467;
  font-size: 9px;
}

.process {
  max-width: none;
  padding-right: 0;
  padding-left: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-raised);
}

.process-header {
  display: grid;
  grid-template-columns: 1fr 2fr;
  align-items: end;
  gap: 40px;
  max-width: var(--max-width);
  padding: 0 var(--page-pad);
  margin: 0 auto 78px;
}

.process-header .section-index {
  margin: 0;
}

.process-header h2 {
  max-width: 770px;
}

.process-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  max-width: var(--max-width);
  padding: 0 var(--page-pad);
  margin: 0 auto;
  list-style: none;
}

.process-track li {
  position: relative;
  min-height: 280px;
  padding: 38px 28px 20px 0;
  border-top: 1px solid var(--line-strong);
}

.process-track li:not(:last-child)::after {
  position: absolute;
  top: -2px;
  right: 20px;
  left: 0;
  height: 3px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 600ms ease 160ms;
}

.process-track li.is-visible:not(:last-child)::after {
  transform: scaleX(1);
}

.process-node {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--signal);
  color: var(--signal);
  font-family: var(--mono);
  font-size: 10px;
}

.process-track h3 {
  margin: 40px 0 0;
  font-size: 21px;
}

.process-track p {
  max-width: 210px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.scope {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(440px, 0.95fr);
  min-height: 820px;
  border-bottom: 1px solid var(--line);
}

.scope-visual {
  position: relative;
  min-height: 720px;
  overflow: hidden;
}

.scope-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-label {
  position: absolute;
  right: 28px;
  bottom: 28px;
  padding: 9px 11px;
  background: var(--signal);
  color: var(--ink);
  font-size: 9px;
  font-weight: 700;
}

.scope-content {
  padding: 108px var(--page-pad) 90px;
  background: #20231e;
}

.scope-content h2 {
  max-width: 650px;
  font-size: 46px;
}

.scope-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 34px;
  margin-top: 70px;
  border-top: 1px solid var(--line-strong);
}

.scope-groups article {
  min-height: 210px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.scope-groups span {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 10px;
}

.scope-groups h3 {
  margin: 20px 0 0;
  font-size: 20px;
}

.scope-groups p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.company {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(520px, 1.25fr);
  gap: 100px;
}

.company-heading h2 {
  max-width: 560px;
}

.company-heading > p:last-child {
  max-width: 510px;
  margin: 28px 0 0;
  color: var(--muted);
}

.company-data {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.company-data > div {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 30px;
  padding: 23px 0;
  border-bottom: 1px solid var(--line);
}

.company-data dt {
  color: var(--muted);
  font-size: 13px;
}

.company-data dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 15px;
}

.company-data a {
  padding-bottom: 2px;
  border-bottom: 1px solid var(--signal);
}

.mono {
  font-family: var(--mono);
}

.contact {
  padding: 32px var(--page-pad) 82px;
  background: var(--signal);
  color: var(--ink);
}

.contact-topline {
  display: flex;
  justify-content: space-between;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(17, 19, 15, 0.34);
  font-size: 9px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(430px, 1.1fr);
  gap: 100px;
  max-width: var(--max-width);
  padding-top: 76px;
  margin: 0 auto;
}

.contact h2 {
  max-width: 700px;
  font-size: 66px;
}

.contact-actions {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 14px;
  padding-top: 12px;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 7px;
  border-bottom: 2px solid var(--ink);
  font-size: 32px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.contact-phone {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 700;
}

.contact-actions p {
  margin: 18px 0 0;
  color: #38400f;
  font-size: 13px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 36px var(--page-pad);
  border-top: 1px solid #34382f;
  background: var(--ink);
  color: var(--muted);
  font-size: 12px;
}

.site-footer > div {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.site-footer strong {
  color: var(--paper);
}

.site-footer > a {
  display: flex;
  gap: 10px;
  color: var(--paper);
}

.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (max-width: 1180px) {
  :root {
    --page-pad: 32px;
  }

  .hero h1 {
    font-size: 56px;
  }

  html[lang="en"] .hero h1 {
    font-size: 48px;
  }

  html[lang="en"] .hero h1 > span[data-lang="en"] {
    font-size: 48px;
  }

  .section h2,
  .scope h2 {
    font-size: 44px;
  }

  .capabilities,
  .company {
    gap: 64px;
  }

  .capability-item {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .item-code {
    display: none;
  }

  .process-track p {
    padding-right: 12px;
  }

  .contact-layout {
    gap: 60px;
  }
}

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: 1fr auto auto;
  }

  .menu-toggle {
    position: relative;
    z-index: 2;
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--line-strong);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
  }

  .menu-icon {
    display: grid;
    gap: 5px;
    width: 18px;
  }

  .menu-icon i {
    display: block;
    width: 100%;
    height: 1px;
    background: currentColor;
    transition: transform 180ms ease;
  }

  .menu-toggle[aria-expanded="true"] .menu-icon i:first-child {
    transform: translateY(3px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-icon i:last-child {
    transform: translateY(-3px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    inset: var(--header-height) 0 auto;
    display: grid;
    align-content: start;
    gap: 0;
    height: auto;
    padding: 12px var(--page-pad) 30px;
    border-bottom: 1px solid var(--line-strong);
    background: var(--ink);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    height: auto;
    padding: 15px 0;
    border-bottom: 1px solid var(--line);
    font-size: 18px;
  }

  .language-switcher {
    margin-right: 14px;
  }

  .hero {
    min-height: 82svh;
  }

  .hero-content {
    width: 78%;
  }

  html[lang="en"] .hero-content {
    width: 82%;
  }

  .hero h1 {
    font-size: 48px;
  }

  html[lang="en"] .hero h1 {
    font-size: 40px;
  }

  html[lang="en"] .hero h1 > span[data-lang="en"] {
    font-size: 40px;
  }

  .operations-rail {
    grid-template-columns: 1fr;
  }

  .rail-heading {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .section-intro {
    position: static;
  }

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

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

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

  .scope-visual {
    min-height: 520px;
  }

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

@media (max-width: 768px) {
  :root {
    --page-pad: 20px;
    --header-height: 64px;
  }

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

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .brand-copy strong {
    font-size: 14px;
  }

  .hero {
    align-items: end;
    min-height: 780px;
    padding-top: calc(var(--header-height) + 80px);
    padding-bottom: 88px;
  }

  .hero-media {
    object-position: 58% center;
  }

  .hero-shield {
    width: 100%;
    background: rgba(17, 19, 15, 0.72);
    clip-path: polygon(0 0, 76% 0, 100% 100%, 0 100%);
  }

  .hero-grid {
    margin: 0 var(--page-pad);
  }

  .hero-content {
    width: 100%;
  }

  html[lang="en"] .hero-content {
    width: 100%;
  }

  .eyebrow {
    margin-bottom: 20px;
  }

  .hero h1,
  html[lang="en"] .hero h1 {
    max-width: 570px;
    font-size: 42px;
    line-height: 1.1;
  }

  html[lang="en"] .hero h1 > span[data-lang="en"] {
    font-size: 42px;
    line-height: 1.1;
  }

  .hero-lead {
    margin-top: 22px;
    font-size: 17px;
  }

  .hero-actions {
    flex-wrap: wrap;
    margin-top: 28px;
  }

  .hero-coordinate {
    display: none;
  }

  .rail-steps {
    grid-template-columns: 1fr 1fr;
  }

  .rail-steps li:nth-child(2) {
    border-right: 0;
  }

  .rail-steps li:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .section {
    padding-top: 92px;
    padding-bottom: 92px;
  }

  .section h2,
  .scope h2 {
    font-size: 38px;
  }

  .capabilities,
  .company {
    gap: 60px;
  }

  .capability-item {
    gap: 15px;
    padding: 28px 0;
  }

  .capability-item h3 {
    font-size: 22px;
  }

  .process-header {
    margin-bottom: 50px;
  }

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

  .process-track li {
    min-height: 0;
    padding: 24px 0 32px 58px;
    border-top: 0;
    border-left: 1px solid var(--line-strong);
  }

  .process-track li:not(:last-child)::after {
    top: 0;
    bottom: 0;
    left: -2px;
    width: 3px;
    height: auto;
    transform: scaleY(0);
    transform-origin: top;
  }

  .process-track li.is-visible:not(:last-child)::after {
    transform: scaleY(1);
  }

  .process-node {
    position: absolute;
    top: 22px;
    left: 14px;
    width: 28px;
    height: 28px;
    background: var(--ink-raised);
  }

  .process-track h3 {
    margin-top: 0;
  }

  .process-track p {
    max-width: none;
  }

  .scope-visual {
    min-height: 420px;
  }

  .scope-content {
    padding-top: 76px;
    padding-bottom: 72px;
  }

  .scope-groups {
    grid-template-columns: 1fr;
    margin-top: 50px;
  }

  .scope-groups article {
    min-height: 0;
  }

  .company-data > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .contact {
    padding-bottom: 62px;
  }

  .contact-layout {
    gap: 48px;
    padding-top: 58px;
  }

  .contact h2 {
    font-size: 46px;
  }

  .contact-email {
    font-size: 24px;
  }

  .site-footer {
    align-items: flex-start;
  }

  .site-footer > div {
    display: grid;
  }
}

@media (max-width: 480px) {
  .brand-copy small {
    display: none;
  }

  .language-switcher {
    margin-right: 8px;
  }

  .hero {
    min-height: 760px;
  }

  .hero h1,
  html[lang="en"] .hero h1 {
    font-size: 36px;
  }

  html[lang="en"] .hero h1 > span[data-lang="en"] {
    font-size: 36px;
  }

  .hero-actions {
    align-items: flex-start;
    gap: 18px;
  }

  .button {
    min-width: 148px;
  }

  .rail-steps li {
    padding: 22px 20px;
  }

  .section h2,
  .scope h2 {
    font-size: 34px;
  }

  .contact h2 {
    font-size: 40px;
  }

  .contact-email {
    font-size: 21px;
  }

  .site-footer {
    display: grid;
  }
}

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

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

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}