:root {
  --ink: #17191b;
  --muted: #696c70;
  --paper: #ffffff;
  --white: #fff;
  --accent: #f36b21;
  --line: #d8d6d0;
  --max: 1200px;
  --header: 78px
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header)
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  -webkit-font-smoothing: antialiased
}

body.menu-open {
  overflow: hidden
}

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

button {
  font: inherit
}

img {
  display: block
}

.container {
  width: min(var(--max), calc(100% - 80px));
  margin: auto
}

.section {
  padding: 120px 0
}

.skip-link {
  position: fixed;
  z-index: 200;
  left: 20px;
  top: -100px;
  background: var(--accent);
  color: white;
  padding: 12px 18px
}

.skip-link:focus {
  top: 20px
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header);
  color: white;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
  transition: .3s
}

.site-header.scrolled {
  background: rgba(23, 25, 27, .96);
  backdrop-filter: blur(14px)
}

.nav-wrap {
  height: 100%;
  width: min(1400px, calc(100% - 48px));
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between
}

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

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 10px
}

.brand span {
  display: grid;
  gap: 3px
}

.brand b {
  font-size: 18px;
  line-height: 1;
  letter-spacing: .08em
}

.brand small {
  font-size: 9px;
  letter-spacing: .18em;
  color: #aaa
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px
}

.main-nav a {
  font-size: 14px;
  position: relative
}

.main-nav a:after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -10px;
  height: 2px;
  background: var(--accent);
  transition: .25s
}

.main-nav a:hover:after,
.main-nav a.active:after {
  right: 0
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 18px
}

.lang-toggle {
  border: 0;
  background: none;
  color: white;
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font-size: 11px;
  padding: 8px
}

.lang-toggle span {
  opacity: .45
}

.lang-toggle span.active {
  opacity: 1
}

.lang-toggle i {
  width: 1px;
  height: 11px;
  background: #777
}

.menu-toggle {
  display: none;
  border: 0;
  background: none;
  width: 38px;
  height: 38px;
  padding: 10px;
  cursor: pointer
}

.menu-toggle span {
  display: block;
  height: 1px;
  background: #fff;
  margin: 6px 0;
  transition: .25s
}

.hero {
  height: max(720px, 100vh);
  min-height: 680px;
  position: relative;
  color: white;
  display: flex;
  align-items: center;
  overflow: hidden
}

.hero-media {
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: scale(1.02)
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 12, 13, .9) 0%, rgba(10, 12, 13, .64) 48%, rgba(10, 12, 13, .2) 100%), linear-gradient(0deg, rgba(0, 0, 0, .35), transparent 45%)
}

.hero-content {
  position: relative;
  padding-top: 60px
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 30px;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--muted)
}

.eyebrow>span:first-child {
  display: block;
  width: 34px;
  height: 2px;
  background: var(--accent)
}

.eyebrow.light {
  color: #c6c6c3
}

.hero h1,
.section h2 {
  margin: 0;
  font-size: clamp(45px, 6.3vw, 86px);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -.05em
}

.hero h1 {
  max-width: 860px
}

.hero-lead {
  max-width: 660px;
  color: #d5d5d2;
  font-size: 17px;
  line-height: 1.9;
  margin: 30px 0 38px
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 34px
}

.button {
  height: 54px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  font-size: 13px;
  font-weight: 600
}

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

.button b {
  font-size: 19px
}

.text-link {
  font-size: 13px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, .45);
  padding: 10px 0
}

.hero-index {
  position: absolute;
  right: 48px;
  bottom: 38px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px
}

.hero-index span {
  display: block;
  width: 80px;
  height: 1px;
  background: #777
}

.hero-index span:before {
  content: "";
  display: block;
  width: 20%;
  height: 1px;
  background: var(--accent)
}

.hero-index small {
  color: #aaa
}

.split-heading {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px
}

.section h2 {
  font-size: clamp(40px, 4.7vw, 68px)
}

.intro-copy {
  padding-top: 36px
}

.intro-copy p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9
}

.intro-copy .lead {
  font-size: 20px;
  color: var(--ink);
  line-height: 1.75;
  margin-top: 0
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  margin-top: 90px
}

.stats>div {
  padding: 38px 0 0;
  border-right: 1px solid var(--line);
  display: grid;
  gap: 10px
}

.stats>div:not(:first-child) {
  padding-left: 38px
}

.stats>div:last-child {
  border-right: 0
}

.stats strong {
  font-size: 43px;
  letter-spacing: -.04em
}

.stats strong:after {
  content: "";
  display: block;
  width: 23px;
  height: 3px;
  background: var(--accent);
  margin-top: 18px
}

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

.dark {
  background: var(--ink);
  color: white
}

.section-heading.horizontal {
  display: grid;
  grid-template-columns: 2fr 1fr;
  align-items: end;
  gap: 80px;
  margin-bottom: 64px
}

.section-heading.horizontal>p {
  font-size: 14px;
  line-height: 1.8;
  color: #9c9d9c;
  margin: 0
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: #383a3b;
  border: 1px solid #383a3b
}

.product-card {
  background: var(--ink);
  min-height: 305px;
  padding: 38px;
  position: relative;
  overflow: hidden
}

.product-card>span,
.card-content>span {
  color: var(--accent);
  font-size: 10px;
  letter-spacing: .18em
}

.product-card h3 {
  font-size: 25px;
  margin: 56px 0 14px
}

.product-card p {
  max-width: 430px;
  color: #aeb0af;
  font-size: 14px;
  line-height: 1.8;
  margin: 0
}

.product-card.featured {
  grid-row: span 2;
  min-height: 611px;
  padding: 0;
  display: flex;
  align-items: flex-end
}

.product-photo {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover
}

.photo-lift {
  background: var(--ink)
}

.card-content {
  position: relative;
  padding: 42px
}

.card-content h3 {
  margin-top: 20px
}

.card-icon {
  position: absolute;
  right: 35px;
  top: 40px;
  color: #555;
  font-weight: 300;
  font-size: 42px
}

.service-layout {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 120px
}

.service-sticky {
  align-self: start;
  position: sticky;
  top: 130px
}

.service-sticky>p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.8;
  max-width: 420px;
  margin: 28px 0
}

.dark-link {
  display: inline-block;
  border-color: #777
}

.service-list article {
  display: grid;
  grid-template-columns: 55px 1fr;
  gap: 24px;
  padding: 42px 0;
  border-top: 1px solid var(--line)
}

.service-list article:last-child {
  border-bottom: 1px solid var(--line)
}

.service-list article>span {
  font-size: 11px;
  color: var(--accent);
  font-weight: 700
}

.service-list h3 {
  font-size: 24px;
  margin: 0 0 16px
}

.service-list p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
  max-width: 560px
}

.cases {
  padding: 0;
  min-height: 700px;
  display: grid;
  grid-template-columns: 1.08fr .92fr
}

.case-image {
  background: var(--ink)
}

.case-panel {
  background: #292c2e;
  color: white;
  padding: 100px clamp(50px, 7vw, 110px);
  display: flex;
  flex-direction: column;
  justify-content: center
}

.case-panel h2 {
  font-size: clamp(38px, 4.2vw, 60px)
}

.case-panel>p:last-child {
  color: #b6b7b6;
  line-height: 1.9;
  font-size: 14px
}

.capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 38px 0
}

.capability-tags span {
  border: 1px solid #56595a;
  padding: 9px 12px;
  font-size: 11px;
  color: #ddd
}

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

.process-steps li {
  position: relative;
  border-top: 2px solid var(--line);
  padding: 28px 10px 0 0;
  display: grid;
  gap: 10px
}

.process-steps li:before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent)
}

.process-steps b {
  font-size: 10px;
  color: var(--accent)
}

.process-steps span {
  font-size: 20px;
  font-weight: 600
}

.process-steps small {
  color: var(--muted)
}

.contact {
  padding: 105px 0
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 110px
}

.contact-info {
  padding-top: 50px
}

.contact-info>p {
  color: #acafae;
  line-height: 1.8;
  max-width: 520px
}

.contact-info>a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: clamp(24px, 3vw, 38px);
  border-bottom: 1px solid #555;
  padding: 25px 0
}

.contact-info>a b {
  color: var(--accent)
}

.contact-meta {
  display: flex;
  justify-content: space-between;
  color: #888;
  font-size: 11px;
  margin-top: 24px;
  text-transform: uppercase;
  letter-spacing: .12em
}

footer {
  background: #101112;
  color: white;
  padding: 36px 0
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px
}

.footer-brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px
}

.footer-brand b {
  font-size: 15px
}

.footer-grid>p {
  color: #787a7a;
  font-size: 11px
}

.footer-grid>small {
  text-align: right;
  color: #666;
  font-size: 9px
}

.back-top {
  position: fixed;
  z-index: 50;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  border: 0;
  background: var(--accent);
  color: white;
  cursor: pointer;
  opacity: 0;
  transform: translateY(15px);
  pointer-events: none;
  transition: .25s
}

.back-top.show {
  opacity: 1;
  transform: none;
  pointer-events: auto
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s, transform .7s
}

[data-reveal].visible {
  opacity: 1;
  transform: none
}

@media(max-width:900px) {
  :root {
    --header: 70px
  }

  .container {
    width: min(100% - 40px, var(--max))
  }

  .section {
    padding: 85px 0
  }

  .main-nav {
    position: fixed;
    inset: var(--header) 0 0;
    background: var(--ink);
    padding: 50px 30px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    transform: translateX(100%);
    transition: .3s
  }

  .main-nav.open {
    transform: none
  }

  .main-nav a {
    font-size: 30px;
    width: 100%;
    padding: 18px 0;
    border-bottom: 1px solid #333
  }

  .menu-toggle {
    display: block
  }

  .menu-toggle.open span:first-child {
    transform: translateY(3.5px) rotate(45deg)
  }

  .menu-toggle.open span:last-child {
    transform: translateY(-3.5px) rotate(-45deg)
  }

  .split-heading,
  .service-layout,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px
  }

  .intro-copy {
    padding: 0
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 60px
  }

  .stats>div {
    padding: 30px 0;
    border-bottom: 1px solid var(--line)
  }

  .stats>div:nth-child(odd) {
    border-right: 1px solid var(--line)
  }

  .stats>div:nth-child(even) {
    border-right: 0;
    padding-left: 28px
  }

  .section-heading.horizontal {
    grid-template-columns: 1fr;
    gap: 24px
  }

  .service-sticky {
    position: static
  }

  .cases {
    grid-template-columns: 1fr
  }

  .case-image {
    min-height: 480px
  }

  .case-panel {
    padding: 70px 40px
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr
  }

  .footer-grid>p {
    display: none
  }
}

@media(max-width:640px) {
  .nav-wrap {
    width: calc(100% - 28px)
  }

  .brand img {
    width: 38px;
    height: 38px
  }

  .brand b {
    font-size: 15px
  }

  .brand small {
    font-size: 8px
  }

  .hero {
    min-height: 690px
  }

  .hero-shade {
    background: linear-gradient(90deg, rgba(10, 12, 13, .87), rgba(10, 12, 13, .45)), linear-gradient(0deg, rgba(0, 0, 0, .55), transparent)
  }

  .hero h1 {
    font-size: 47px
  }

  .hero-lead {
    font-size: 15px;
    line-height: 1.75
  }

  .hero-cta {
    align-items: flex-start;
    flex-direction: column;
    gap: 15px
  }

  .hero-index {
    right: 20px;
    bottom: 24px
  }

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

  .product-card.featured {
    grid-row: auto;
    min-height: 500px
  }

  .product-card {
    min-height: 280px;
    padding: 30px
  }

  .card-content {
    padding: 30px
  }

  .product-card h3 {
    margin-top: 50px
  }

  .stats strong {
    font-size: 35px
  }

  .stats>div {
    min-height: 145px
  }

  .cases .case-image {
    min-height: 360px
  }

  .case-panel {
    padding: 65px 20px
  }

  .process-steps {
    grid-template-columns: 1fr 1fr;
    row-gap: 40px
  }

  .contact-grid {
    gap: 30px
  }

  .contact-info {
    padding-top: 0
  }

  .contact-info>a {
    font-size: 21px
  }

  .footer-grid {
    grid-template-columns: 1fr
  }

  .footer-grid>small {
    text-align: left
  }

  .footer-grid .brand small {
    font-size: 7px
  }

  .lang-toggle {
    padding: 4px
  }

  .section-heading.horizontal {
    margin-bottom: 45px
  }
}

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

  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important
  }

  [data-reveal] {
    opacity: 1;
    transform: none
  }
}