:root {
  --blue: #0575f4;
  --blue-dark: #062a55;
  --ink: #111417;
  --muted: #5f666d;
  --line: #c9ced3;
  --paper: #f5f4f1;
  --white: #fff;
  --soft-blue: #e5edf4;
  --max: 1360px;
  --gutter: clamp(20px, 4.4vw, 68px);
  --sans: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  --sans-zh: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.lang-zh { font-family: var(--sans-zh); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.no-break { white-space: nowrap; }

.shell {
  width: min(calc(100% - 2 * var(--gutter)), var(--max));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  color: var(--white);
  background: var(--blue-dark);
  transform: translateY(-160%);
}
.skip-link:focus { transform: none; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; }

.site-header {
  position: sticky;
  z-index: 40;
  top: 0;
  background: rgba(245, 244, 241, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.header-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  min-height: 84px;
  gap: clamp(18px, 3vw, 48px);
}
.brand { display: inline-flex; align-items: center; width: max-content; }
.brand img { width: 124px; height: 54px; object-fit: contain; }
.brand-copy { display: grid; margin-left: 14px; line-height: 1.05; }
.brand-copy strong { font-size: 15px; font-weight: 650; }
.brand-copy small {
  margin-top: 6px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.site-nav { display: flex; align-items: center; gap: clamp(18px, 2.8vw, 40px); }
.site-nav a {
  color: #30363b;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: .04em;
}
.site-nav a:hover { color: var(--blue); }
.site-nav a[aria-current="page"] { color: var(--blue-dark); }
.language-switch {
  padding-left: clamp(14px, 2vw, 24px);
  border-left: 1px solid var(--line);
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
}
.menu-toggle span { display: block; width: 20px; height: 1px; margin: 5px auto; background: currentColor; }

.hero {
  position: relative;
  min-height: min(820px, calc(100svh - 84px));
  background:
    linear-gradient(180deg, rgba(255,255,255,.16), transparent 32%),
    #dfe2e3;
  overflow: hidden;
}
.hero-accent {
  position: absolute;
  inset: 0 0 0 auto;
  width: 40.5%;
  background: var(--blue);
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%);
}
.hero-accent::before,
.hero-accent::after {
  position: absolute;
  content: "";
  background: rgba(255,255,255,.2);
}
.hero-accent::before { top: 22%; right: 0; width: 68%; height: 1px; }
.hero-accent::after { right: 16%; bottom: 20%; width: 1px; height: 26%; }
.hero-panel-detail {
  position: absolute;
  z-index: 1;
  top: 118px;
  right: clamp(24px, 4.4vw, 68px);
  display: flex;
  gap: 7px;
}
.hero-panel-detail span { width: 22px; height: 3px; background: rgba(255,255,255,.32); }
.hero-panel-detail span:nth-child(2) { width: 8px; }
.hero-panel-detail span:nth-child(3) { width: 4px; background: rgba(185,242,39,.85); }
.hero-micro-label {
  position: absolute;
  z-index: 2;
  right: 25px;
  top: 50%;
  color: rgba(255,255,255,.68);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .16em;
  writing-mode: vertical-rl;
  transform: translateY(-50%);
}
.hero-micro-label b { color: #b9f227; font-weight: 400; }
.hero::after {
  position: absolute;
  z-index: 1;
  right: 8%;
  bottom: 105px;
  width: 46%;
  height: 38px;
  background: radial-gradient(ellipse, rgba(6,42,85,.36), rgba(6,42,85,0) 68%);
  filter: blur(8px);
  content: "";
}
.hero-inner {
  position: relative;
  display: grid;
  z-index: 3;
  grid-template-columns: minmax(0, 5.25fr) minmax(480px, 6.75fr);
  min-height: min(736px, calc(100svh - 84px));
  align-items: center;
  gap: clamp(10px, 1.4vw, 28px);
  padding-top: clamp(62px, 7vh, 92px);
  padding-bottom: 72px;
}
.hero-copy { position: relative; z-index: 5; max-width: 640px; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 30px;
  color: #3e474e;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  line-height: 1.3;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--blue); }
h1, h2, h3, p { margin-top: 0; }
.business-heading h2 > .no-break,
.closing h2 > .no-break { display: block; }
h1 {
  max-width: 760px;
  margin-bottom: 32px;
  font-size: clamp(4rem, 5.25vw, 5.15rem);
  font-weight: 560;
  letter-spacing: -.075em;
  line-height: .94;
}
h1 span { display: block; }
.hero-lede {
  max-width: 510px;
  margin-bottom: 24px;
  color: #3f474d;
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  line-height: 1.5;
}
.hero-scope {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 0;
  margin: 0 0 30px;
  padding: 14px 0;
  list-style: none;
  border-top: 1px solid rgba(17,20,23,.26);
  border-bottom: 1px solid rgba(17,20,23,.16);
}
.hero-scope li {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 30%;
  padding-right: 16px;
  color: #30383f;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .055em;
  text-transform: uppercase;
}
.hero-scope li + li { padding-left: 16px; border-left: 1px solid rgba(17,20,23,.2); }
.hero-scope li > span:last-child { white-space: nowrap; }
.scope-mark { width: 5px; height: 5px; background: var(--blue); }
.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-height: 48px;
  padding: 0 18px;
  color: var(--white);
  background: var(--ink);
  font-size: 13px;
  font-weight: 650;
}
.hero-link span { color: var(--blue); font-size: 20px; line-height: 0; }
.hero-link:hover { background: var(--blue-dark); }
.hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-left: 24px;
  color: #30363b;
  font-size: 13px;
  font-weight: 650;
  border-bottom: 1px solid #737b82;
}
.hero-secondary:hover { color: var(--blue-dark); border-color: var(--blue-dark); }
.hero-visual {
  position: relative;
  z-index: 4;
  width: min(118%, 850px);
  justify-self: end;
  margin: 0;
  align-self: end;
  transform: translate(7%, 28px);
}
.hero-visual::before {
  position: absolute;
  z-index: 0;
  right: 9%;
  bottom: 1%;
  width: 68%;
  height: 20px;
  background: rgba(6, 42, 85, .34);
  border-radius: 50%;
  filter: blur(12px);
  content: "";
}
.hero-visual::after {
  position: absolute;
  z-index: 0;
  right: 12%;
  bottom: 0;
  width: 64%;
  height: 12px;
  background:
    radial-gradient(ellipse at 27% 50%, rgba(6,42,85,.28), transparent 42%),
    radial-gradient(ellipse at 76% 50%, rgba(6,42,85,.28), transparent 42%);
  filter: blur(4px);
  content: "";
}
.hero-visual picture { position: relative; z-index: 1; display: block; }
.hero-visual img { position: relative; z-index: 1; display: block; width: 100%; height: auto; object-fit: contain; }
.hero-rail {
  position: absolute;
  z-index: 7;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  min-height: 78px;
  color: #313940;
  border-top: 1px solid rgba(17,20,23,.28);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .085em;
  text-transform: uppercase;
}
.rail-route { display: grid; grid-template-columns: auto minmax(80px, 240px) auto; align-items: center; gap: 14px; width: max-content; }
.rail-route > span { white-space: nowrap; }
.rail-route i { position: relative; height: 1px; background: rgba(17,20,23,.38); }
.rail-route i::after {
  position: absolute;
  right: 0;
  top: -3px;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--blue);
  border-right: 1px solid var(--blue);
  transform: rotate(45deg);
  content: "";
}
.rail-scope { justify-self: end; color: rgba(255,255,255,.82); white-space: nowrap; }
.hero-note {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin: 16px 0 0;
  color: #687078;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero-note strong { color: var(--ink); font-weight: 500; }

.section { padding: clamp(88px, 11vw, 170px) 0; }
.section-white { background: var(--white); }
.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(240px, 5fr);
  gap: clamp(24px, 6vw, 110px);
  align-items: end;
  margin-bottom: clamp(52px, 7vw, 96px);
}
.section-heading h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2.4rem, 5.2vw, 5.8rem);
  font-weight: 520;
  letter-spacing: -.065em;
  line-height: .96;
}
.section-heading > p { max-width: 360px; margin-bottom: 4px; color: var(--muted); }

.models-layout {
  display: grid;
  grid-template-columns: minmax(210px, 3fr) minmax(0, 9fr);
  gap: clamp(36px, 7vw, 120px);
  align-items: start;
}
.model-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.model-list li { border-bottom: 1px solid var(--line); }
.model-list a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  min-height: 66px;
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  font-weight: 600;
  letter-spacing: -.025em;
}
.model-list a::after { color: var(--blue); content: "↗"; font-size: 20px; font-weight: 400; }
.model-list a:hover { color: var(--blue-dark); padding-left: 8px; }
.models-art {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(190px, .75fr);
  gap: 18px;
}
.art-main, .art-side { display: grid; gap: 18px; }
.art-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.art-main figure, .art-side figure { position: relative; margin: 0; background: var(--white); overflow: hidden; }
.art-main figure { min-height: 490px; }
.art-side figure:first-child { min-height: 230px; }
.art-side figure:last-child { min-height: 242px; background: var(--white); }
.models-art img { width: 100%; height: 100%; object-fit: contain; background: var(--white); }
.art-main img { min-height: 490px; }
.art-side img { min-height: 230px; }
.models-art figcaption {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 7px 10px;
  color: #111418;
  background: rgba(236, 238, 240, .72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(17, 20, 23, .14);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .04em;
}

.business {
  position: relative;
  color: var(--white);
  background: var(--blue-dark);
  overflow: hidden;
}
.business::before {
  position: absolute;
  top: -120px;
  right: -80px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 50%;
  content: "";
}
.business .eyebrow { color: #c7d5e4; }
.business .eyebrow::before { background: #b9f227; }
.business-heading {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(250px, 5fr);
  gap: clamp(30px, 8vw, 150px);
  align-items: end;
  margin-bottom: 76px;
}
.business h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2.6rem, 5.6vw, 6rem);
  font-weight: 520;
  letter-spacing: -.07em;
  line-height: .95;
}
.business-heading > p { max-width: 380px; margin-bottom: 4px; color: #c7d5e4; }
.business-flow { border-top: 1px solid rgba(255,255,255,.42); }
.business-flow article {
  display: grid;
  grid-template-columns: minmax(140px, 2.2fr) minmax(0, 7fr) minmax(110px, 2.8fr);
  gap: 24px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255,255,255,.22);
}
.business-flow h3 { margin: 0; color: #b9f227; font-size: 1.18rem; font-weight: 600; }
.business-flow p { max-width: 610px; margin: 0; color: #e8eef5; }
.flow-note { justify-self: end; color: #a9bacb; font-family: var(--mono); font-size: 10px; letter-spacing: .09em; text-transform: uppercase; }

.closing { background: var(--paper); }
.closing-inner {
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(220px, 4fr);
  gap: 36px;
  align-items: end;
  padding-block: clamp(78px, 10vw, 150px);
}
.closing h2 {
  max-width: 850px;
  margin-bottom: 20px;
  font-size: clamp(3rem, 7vw, 7.4rem);
  font-weight: 540;
  letter-spacing: -.08em;
  line-height: .9;
}
.closing p { max-width: 470px; margin-bottom: 0; color: var(--muted); }
.closing-action {
  display: inline-flex;
  justify-self: end;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  padding: 0 20px;
  color: var(--white);
  background: var(--blue);
  font-size: 13px;
  font-weight: 700;
}
.closing-action span { font-size: 21px; font-weight: 400; }
.closing-action:hover { background: var(--blue-dark); }

.site-footer { color: #d9e4ee; background: #101b27; }
.footer-inner { padding-block: 52px 28px; }
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 42px;
  border-bottom: 1px solid rgba(255,255,255,.24);
}
.footer-brand { display: inline-flex; align-items: center; width: max-content; }
.footer-brand img { width: 132px; height: 58px; object-fit: contain; }
.footer-description { max-width: 270px; margin: 20px 0 0; color: #9fb0c0; font-size: 13px; }
.footer-heading { margin: 4px 0 14px; color: #f5f8fb; font-family: var(--mono); font-size: 10px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; }
.footer-links, .footer-contact { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; color: #afbdca; font-size: 13px; }
.footer-links a:hover, .footer-contact a:hover { color: #b9f227; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; color: #8fa1b1; font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.footer-bottom p { margin: 0; }
.footer-bottom a:hover { color: var(--white); }

.lang-zh h1, .lang-zh h2 { letter-spacing: -.08em; }
.lang-zh h1 { line-height: 1.02; }
.lang-zh .brand-copy small, .lang-zh .footer-heading { letter-spacing: .05em; }
.lang-zh .eyebrow { letter-spacing: .04em; }
.lang-zh .hero-lede, .lang-zh .section-heading > p, .lang-zh .business-heading > p, .lang-zh .closing p, .lang-zh .business-flow p { line-height: 1.8; }
.lang-zh .flow-note { letter-spacing: .03em; }

@media (min-width: 981px) {
  h1 span { white-space: nowrap; }
}

@media (max-width: 980px) {
  .header-inner { min-height: 76px; }
  .brand-copy { display: none; }
  .menu-toggle { display: block; justify-self: end; }
  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: var(--gutter);
    left: var(--gutter);
    display: none;
    padding: 18px;
    background: var(--paper);
    border: 1px solid var(--line);
    box-shadow: 10px 10px 0 rgba(6,42,85,.1);
  }
  body.menu-open .site-nav { display: grid; gap: 0; }
  .site-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .site-nav a:last-child { border-bottom: 0; }
  .language-switch { padding-left: 0; border-left: 0; }
  .hero { min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; min-height: auto; padding-top: 76px; padding-bottom: 164px; }
  .hero-accent { width: 68%; height: 34%; inset: auto 0 0 auto; clip-path: polygon(17% 0, 100% 0, 100% 100%, 0 100%); }
  .hero-accent::before { top: 28%; width: 72%; }
  .hero-accent::after { right: 12%; bottom: 17%; height: 40%; }
  .hero-panel-detail { top: auto; right: 24px; bottom: 132px; }
  .hero-micro-label { display: none; }
  .hero::after { right: 4%; bottom: 110px; width: 78%; }
  .hero-visual { width: min(106%, 700px); margin-top: 92px; justify-self: center; transform: translateX(2%); }
  .hero-rail { bottom: 0; min-height: 96px; }
  .rail-route { grid-template-columns: auto minmax(60px, 180px) auto; }
  .section-heading, .business-heading { grid-template-columns: 1fr; gap: 24px; }
  .models-layout { grid-template-columns: 1fr; gap: 48px; }
  .model-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .model-list li:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 18px; }
  .model-list li:nth-child(even) { padding-left: 18px; }
  .business-flow article { grid-template-columns: minmax(140px, 2fr) minmax(0, 7fr); }
  .flow-note { grid-column: 2; justify-self: start; }
  .closing-inner { grid-template-columns: 1fr; align-items: start; }
  .closing-action { justify-self: start; }
  .footer-top { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-top > :last-child { grid-column: 2 / -1; }
}

@media (max-width: 640px) {
  :root { --gutter: 20px; }
  .hero-inner { padding-top: 58px; padding-bottom: 90px; }
  .eyebrow { margin-bottom: 22px; }
  h1 { margin-bottom: 24px; font-size: clamp(3.3rem, 16vw, 5.5rem); }
  .lang-en h1 { font-size: clamp(1.9rem, 8.6vw, 2.65rem); line-height: .96; }
  .lang-en h1 span { white-space: nowrap; }
  .lang-zh h1 { font-size: clamp(2.55rem, 11.6vw, 2.85rem); line-height: 1.04; }
  .lang-zh h1 span { white-space: nowrap; }
  .hero-lede { margin-bottom: 20px; font-size: 1rem; }
  .hero-scope { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: 26px; padding-block: 12px; }
  .hero-scope li { min-width: 0; padding: 0 8px; gap: 6px; font-size: 9px; line-height: 1.3; }
  .hero-scope li:first-child { padding-left: 0; }
  .hero-scope li + li { padding-left: 8px; }
  .hero-link { min-height: 50px; }
  .hero-link, .hero-secondary { display: flex; width: max-content; }
  .hero-secondary { margin-top: 16px; margin-left: 0; }
  .hero-accent { width: 72%; height: 30%; }
  .hero-panel-detail { bottom: 104px; }
  .hero::after { bottom: 92px; height: 24px; }
  .lang-en .hero-visual { margin-top: 60px; }
  .hero-visual { width: 102%; margin-top: 90px; transform: translateX(0); }
  .hero-rail {
    grid-template-columns: 1fr;
    gap: 7px;
    align-content: center;
    min-height: 88px;
    padding: 14px 4px;
    background: rgba(245,244,241,.9);
    backdrop-filter: blur(8px);
    font-size: 9px;
    letter-spacing: .045em;
  }
  .rail-route { grid-template-columns: auto minmax(28px, 1fr) auto; gap: 7px; width: 100%; }
  .rail-scope { justify-self: start; color: #46535d; font-size: 8.6px; }
  .hero-note { font-size: 9px; }
  .section { padding-block: 76px; }
  .section-heading { margin-bottom: 48px; }
  .section-heading h2, .business h2 { font-size: clamp(2.5rem, 12vw, 4.3rem); }
  .model-list { display: block; }
  .model-list li:nth-child(odd) { border-right: 0; padding-right: 0; }
  .model-list li:nth-child(even) { padding-left: 0; }
  .models-art { grid-template-columns: 1fr; }
  .art-side { grid-template-columns: 1fr 1fr; }
  .art-main figure, .art-main img { min-height: 0; aspect-ratio: 1.25; }
  .art-side figure:first-child, .art-side figure:last-child, .art-side img { min-height: 0; aspect-ratio: 1 / 1; }
  .business { padding-bottom: 10px; }
  .business-heading { margin-bottom: 52px; }
  .business-flow article { grid-template-columns: 1fr; gap: 8px; padding-block: 22px; }
  .flow-note { grid-column: auto; }
  .closing h2 { font-size: clamp(3.2rem, 15vw, 5.8rem); }
  .closing-action { width: 100%; justify-content: space-between; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 34px 22px; }
  .footer-top > :last-child { grid-column: auto; }
  .footer-bottom { display: grid; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

html[data-ark-theme="corporate"] {
  --ark-rule: rgba(17, 20, 23, .2);
  --ark-rule-soft: rgba(17, 20, 23, .11);
  --ark-signal: var(--blue);
  --ark-dark-signal: #8bc7ff;
}
html[data-ark-depth="moderate"] {
  --ark-stage-opacity: .46;
}
.stage-section { position: relative; isolation: isolate; }
.stage-content { position: relative; z-index: 2; }
.hero-engineering,
.section-instrumentation {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
  color: rgba(17, 20, 23, .24);
  opacity: var(--ark-stage-opacity);
  mix-blend-mode: multiply;
}
.hero-engineering path,
.hero-engineering circle,
.section-instrumentation path,
.section-instrumentation circle {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}
.hero-engineering circle,
.section-instrumentation circle { fill: currentColor; stroke: none; }
.hero-engineering { z-index: 2; opacity: .42; }
.hero-engineering path:nth-of-type(2),
.section-instrumentation path:nth-of-type(2) { opacity: .62; }
.hero-engineering path:nth-of-type(3),
.section-instrumentation path:nth-of-type(3) { opacity: .72; }
.hero-panel-detail::before {
  position: absolute;
  top: -7px;
  left: -16px;
  width: 8px;
  height: 8px;
  border-top: 1px solid rgba(255,255,255,.7);
  border-left: 1px solid rgba(255,255,255,.7);
  content: "";
}
.site-header::after {
  position: absolute;
  right: var(--gutter);
  bottom: -1px;
  width: 42px;
  height: 2px;
  background: var(--blue);
  content: "";
}
.hero-link,
.closing-action {
  position: relative;
  border-radius: 0;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 100%, 0 100%);
}
.hero-link::before,
.closing-action::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--blue);
  content: "";
}
.hero-link:hover,
.closing-action:hover { transform: translateY(-1px); }
.hero-link:active,
.closing-action:active { transform: translateY(1px); }
.model-list { counter-reset: model-line; }
.model-list li { position: relative; }
.model-list a {
  grid-template-columns: 34px 1fr auto;
  gap: 12px;
}
.model-list a::before {
  counter-increment: model-line;
  color: var(--blue);
  content: counter(model-line, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .08em;
}
.models-art figure { border: 1px solid rgba(17,20,23,.08); }
.models-art figure::before,
.models-art figure::after {
  position: absolute;
  z-index: 2;
  pointer-events: none;
  content: "";
}
.models-art figure::before {
  top: 12px;
  left: 12px;
  width: 22px;
  height: 22px;
  border-top: 1px solid rgba(17,20,23,.42);
  border-left: 1px solid rgba(17,20,23,.42);
}
.models-art figure::after {
  right: 14px;
  bottom: 14px;
  width: 14px;
  height: 14px;
  background:
    linear-gradient(90deg, transparent 46%, rgba(5,117,244,.7) 46%, rgba(5,117,244,.7) 54%, transparent 54%),
    linear-gradient(0deg, transparent 46%, rgba(5,117,244,.7) 46%, rgba(5,117,244,.7) 54%, transparent 54%);
  opacity: .54;
}
.models-art figcaption { border-radius: 0; }
.business-flow { counter-reset: business-line; }
.business-flow article { position: relative; }
.business-flow article::before {
  counter-increment: business-line;
  align-self: start;
  color: var(--ark-dark-signal);
  content: counter(business-line, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .1em;
}
.business-flow article {
  grid-template-columns: 34px minmax(140px, 2.2fr) minmax(0, 6.6fr) minmax(110px, 2.8fr);
}
.business-flow h3 { position: relative; }
.business-flow h3::before {
  position: absolute;
  top: .56em;
  left: -12px;
  width: 4px;
  height: 4px;
  background: currentColor;
  content: "";
}
.closing,
.site-footer { position: relative; overflow: hidden; }
.closing-instrumentation,
.footer-instrumentation {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  opacity: .5;
}
.closing-instrumentation::before,
.footer-instrumentation::before {
  position: absolute;
  top: 28%;
  right: var(--gutter);
  width: min(42vw, 560px);
  height: 1px;
  background: currentColor;
  opacity: .2;
  content: "";
}
.closing-instrumentation::after,
.footer-instrumentation::after {
  position: absolute;
  top: calc(28% - 8px);
  right: calc(var(--gutter) + min(42vw, 560px));
  width: 16px;
  height: 16px;
  border-top: 1px solid currentColor;
  border-left: 1px solid currentColor;
  opacity: .32;
  content: "";
}
.closing-instrumentation span,
.footer-instrumentation span {
  position: absolute;
  top: calc(28% - 3px);
  right: var(--gutter);
  width: 6px;
  height: 6px;
  background: var(--blue);
}
.closing-instrumentation i,
.footer-instrumentation i {
  position: absolute;
  top: 28%;
  right: calc(var(--gutter) + min(15.12vw, 201.6px));
  width: 1px;
  height: 84px;
  background: currentColor;
  opacity: .18;
}
.closing-instrumentation b,
.footer-instrumentation b {
  position: absolute;
  top: calc(28% + 80px);
  right: calc(var(--gutter) + min(15.12vw, 201.6px) - 3px);
  width: 7px;
  height: 7px;
  border: 1px solid var(--blue);
  transform: rotate(45deg);
}
.footer-instrumentation { color: #d9e4ee; opacity: .64; }
.footer-instrumentation::before { opacity: .22; }
.footer-instrumentation::after { opacity: .34; }
.footer-instrumentation i { opacity: .25; }
[data-reveal] {
  transition: opacity .65s cubic-bezier(.22,.8,.2,1), transform .65s cubic-bezier(.22,.8,.2,1);
}
.js [data-reveal] { opacity: 0; transform: translateY(12px); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .hero-engineering { opacity: .24; }
  .section-instrumentation { opacity: .28; }
  .business-flow article { grid-template-columns: 28px minmax(140px, 2fr) minmax(0, 7fr); }
  .business-flow article::before { grid-column: 1; grid-row: 1; }
  .business-flow article h3 { grid-column: 2; }
  .business-flow article p { grid-column: 3; }
  .business-flow article .flow-note { grid-column: 3; }
}

@media (max-width: 640px) {
  .site-header::after { right: 20px; width: 28px; }
  .hero-engineering { inset: 0; height: 62%; opacity: .14; }
  .section-instrumentation { height: 55%; opacity: .16; }
  .model-list a { grid-template-columns: 28px 1fr auto; }
  .business-flow article { grid-template-columns: 26px 1fr; }
  .business-flow article::before { grid-column: 1; grid-row: 1; }
  .business-flow article h3 { grid-column: 2; }
  .business-flow article p { grid-column: 2; }
  .business-flow article .flow-note { grid-column: 2; }
  .closing-instrumentation::before,
  .footer-instrumentation::before { right: 20px; width: 58vw; }
  .closing-instrumentation::after,
  .footer-instrumentation::after { right: calc(20px + 58vw); }
  .closing-instrumentation span,
  .footer-instrumentation span { right: 20px; }
  .closing-instrumentation i,
  .footer-instrumentation i { right: calc(20px + 20.88vw); }
  .closing-instrumentation b,
  .footer-instrumentation b { right: calc(20px + 20.88vw - 3px); }
  .closing-instrumentation { opacity: .34; }
  .footer-instrumentation { opacity: .42; }
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  .js [data-reveal],
  .js [data-reveal].is-visible { opacity: 1; transform: none; }
}