:root {
  color-scheme: light;
  --ink: #142126;
  --brand-navy: #102c40;
  --ink-soft: #243238;
  --paper: #f2f0e8;
  --paper-bright: #fbfaf6;
  --lime: #d1e85a;
  --coral: #e85c40;
  --muted: #687274;
  --line: #d2d1c9;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --shell: 1272px;
  font-family: var(--sans);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; color: var(--ink); background: var(--paper); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: min(var(--shell), calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 20; top: 12px; left: 12px; padding: 12px 18px; color: var(--paper); background: var(--ink); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 10; top: 0; height: 88px; background: rgb(242 240 232 / 92%); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.header-inner { display: flex; height: 100%; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand-copy { display: grid; justify-items: center; gap: 5px; }
.brand-copy strong { color: var(--brand-navy); font-family: Arial, Helvetica, sans-serif; font-size: 24px; font-weight: 800; letter-spacing: -.025em; line-height: 1; }
.header-controls { display: flex; order: 3; align-items: center; gap: 16px; }
.language-switch { display: flex; align-items: center; gap: 8px; font-size: 11px; }
.language-switch a { padding: 10px 2px; color: var(--muted); }
.language-switch a[aria-current] { color: var(--ink); font-weight: 800; border-bottom: 1px solid var(--ink); }
.language-switch > span { color: var(--line); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--ink); outline-offset: 5px; }
.brand-copy small, .eyebrow, .section-kicker, .card-index, .art-topline, .art-caption, .contact-item > span, .site-footer small { font-family: var(--mono); letter-spacing: .12em; }
.brand-copy small { color: var(--muted); font-family: var(--sans); font-size: 10px; letter-spacing: 0; }
.primary-nav { order: 2; display: flex; align-items: center; gap: clamp(18px, 2.4vw, 36px); font-size: 13px; font-weight: 600; }
.primary-nav a:not(.nav-cta) { transition: color .2s ease; }
.primary-nav a:not(.nav-cta):hover, .text-link:hover { color: #647417; }
.nav-cta { display: inline-flex; align-items: center; gap: 16px; padding: 14px 18px; color: var(--paper-bright); background: var(--ink); border-radius: 30px; }
.nav-cta span, .button span { color: var(--lime); font-size: 17px; line-height: 1; }
.menu-toggle { display: none; }

.hero { display: grid; min-height: 674px; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; padding-block: 64px 70px; }
.hero-copy { padding-block: 8px; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 35px; color: var(--muted); font-size: 10px; }
.eyebrow-dot { width: 8px; height: 8px; background: var(--coral); border-radius: 50%; box-shadow: 0 0 0 5px rgb(232 92 64 / 14%); }
h1, h2, h3, p { margin-top: 0; }
.hero h1 { max-width: 740px; margin-bottom: 26px; font-size: clamp(46px, 5.3vw, 76px); font-weight: 800; letter-spacing: -.065em; line-height: 1.19; }
.hero-lede { max-width: 530px; margin-bottom: 30px; color: var(--muted); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 28px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 20px; padding: 0 20px; border-radius: 28px; font-size: 13px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgb(20 33 38 / 16%); }
.button-dark { color: var(--paper-bright); background: var(--ink); }
.text-link { display: inline-flex; align-items: center; gap: 12px; font-size: 12px; font-weight: 700; transition: color .2s ease; }
.text-link span { color: #78901b; font-size: 16px; }
.hero-note { margin: 45px 0 0; color: var(--muted); font-family: var(--sans); font-size: 12px; font-weight: 600; letter-spacing: .01em; }

.hero-art { position: relative; min-height: 520px; overflow: hidden; isolation: isolate; color: var(--paper); background: var(--ink); border-radius: 8px; }
.art-topline { position: absolute; z-index: 3; top: 28px; right: 30px; left: 30px; display: flex; justify-content: space-between; color: var(--lime); font-size: 9px; }
.art-grid { position: absolute; z-index: -1; inset: 0; opacity: .23; background-image: linear-gradient(rgb(242 240 232 / 10%) 1px, transparent 1px), linear-gradient(90deg, rgb(242 240 232 / 10%) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(120deg, transparent 4%, #000 54%, transparent 100%); }
.art-orbit { position: absolute; z-index: -1; left: 50%; top: 48%; border: 1px solid rgb(209 232 90 / 35%); border-radius: 50%; transform: translate(-50%, -50%) rotate(-28deg); }
.orbit-one { width: 74%; height: 53%; }
.orbit-two { width: 94%; height: 72%; border-color: rgb(242 240 232 / 20%); transform: translate(-50%, -50%) rotate(48deg); }
.art-core { position: absolute; left: 50%; top: 48%; display: grid; width: 190px; height: 190px; place-items: center; color: var(--ink); background: var(--lime); border-radius: 50%; box-shadow: 0 0 0 18px rgb(209 232 90 / 10%), 0 0 90px rgb(209 232 90 / 22%); transform: translate(-50%, -50%); }
.art-core span { font-size: 73px; font-weight: 800; letter-spacing: -.09em; }
.art-core i { position: absolute; top: 25px; right: 27px; width: 12px; height: 12px; background: var(--coral); border: 3px solid var(--ink); border-radius: 50%; }
.art-chip { position: absolute; display: flex; align-items: center; gap: 9px; padding: 11px 15px; color: var(--paper); background: #233238; border: 1px solid rgb(242 240 232 / 16%); border-radius: 24px; font-size: 11px; }
.chip-dot { width: 7px; height: 7px; background: var(--lime); border-radius: 50%; }
.chip-model { top: 28%; left: 13%; }
.chip-data { top: 37%; right: 10%; }
.chip-workflow { bottom: 25%; left: 28%; }
.art-caption { position: absolute; right: 30px; bottom: 27px; display: grid; gap: 5px; text-align: right; font-size: 8px; }
.art-caption span { color: var(--muted); }
.art-caption b { font-weight: 500; }

.signal-band { background: var(--lime); }
.signal-track { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 20px; font-size: 13px; font-weight: 800; }
.signal-track i, .approach-values i { display: block; width: 5px; height: 5px; background: var(--ink); border-radius: 50%; }

.section-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 10%; align-items: center; }
.about-section { min-height: 490px; padding-block: 88px; }
.section-kicker { margin-bottom: 25px; color: var(--muted); font-size: 9px; }
.section-kicker span { color: var(--coral); }
.section-intro h2, .approach-heading h2 { margin-bottom: 24px; font-size: clamp(32px, 3.4vw, 46px); font-weight: 800; letter-spacing: -.055em; line-height: 1.35; }
.section-intro > p:not(.section-kicker) { max-width: 580px; margin-bottom: 13px; color: var(--muted); font-size: 14px; line-height: 1.95; }
.section-intro .text-link { margin-top: 14px; }
.principle-card { position: relative; min-height: 290px; overflow: hidden; padding: 35px 40px; background: var(--paper-bright); border-left: 7px solid var(--coral); }
.card-index { color: var(--muted); font-size: 9px; }
.principle-card p { position: relative; z-index: 1; margin-top: 48px; font-size: 29px; font-weight: 800; letter-spacing: -.04em; line-height: 1.55; }
.principle-mark { position: absolute; right: 24px; bottom: 18px; color: rgb(20 33 38 / 12%); font-size: 24px; font-weight: 800; letter-spacing: -.025em; }

.capabilities-section { padding: 88px 0 78px; color: var(--paper); background: var(--ink); }
.capabilities-heading { display: flex; align-items: end; justify-content: space-between; gap: 48px; margin-bottom: 38px; }
.section-kicker-light { color: #a7b0ad; }
.capabilities-heading h2 { margin: 0; font-size: clamp(32px, 3.4vw, 44px); letter-spacing: -.055em; }
.capabilities-heading > p { max-width: 390px; margin: 0 0 5px; color: #a7b0ad; font-size: 13px; line-height: 1.8; }
.capability-list { border-top: 1px solid rgb(242 240 232 / 22%); }
.capability-card { display: grid; min-height: 132px; grid-template-columns: 80px 1fr 30px; gap: 24px; align-items: center; padding: 22px 20px; border-bottom: 1px solid rgb(242 240 232 / 18%); transition: background .25s ease, padding .25s ease; }
.capability-card:hover { padding-inline: 28px; background: rgb(255 255 255 / 4%); }
.capability-number { color: var(--lime); font-family: var(--mono); font-size: 11px; }
.capability-main { display: grid; grid-template-columns: minmax(200px, .8fr) 1.2fr; gap: 28px; align-items: center; }
.capability-main h3 { margin: 0; font-size: 19px; letter-spacing: -.03em; }
.capability-main p { max-width: 520px; margin: 0; color: #a7b0ad; font-size: 12px; line-height: 1.8; }
.capability-arrow { color: var(--lime); font-size: 22px; text-align: right; }
.capabilities-footnote { margin: 19px 0 0 104px; color: #8e9997; font-size: 10px; }

.approach-section { padding-block: 100px 86px; }
.approach-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; column-gap: 40px; }
.approach-heading .section-kicker { grid-column: 1 / -1; }
.approach-heading h2 { margin-bottom: 0; }
.approach-heading > p:last-child { max-width: 470px; margin: 0 0 8px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.approach-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 54px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.approach-steps li { position: relative; min-height: 188px; padding: 24px 30px 20px 0; }
.approach-steps li + li { padding-left: 30px; border-left: 1px solid var(--line); }
.step-index { display: grid; width: 32px; height: 32px; margin-bottom: 24px; place-items: center; color: var(--ink); background: var(--lime); border-radius: 50%; font-family: var(--mono); font-size: 9px; }
.approach-steps li:first-child .step-index { background: var(--coral); }
.approach-steps h3 { margin-bottom: 9px; font-size: 16px; }
.approach-steps p { max-width: 280px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.approach-values { display: flex; align-items: center; gap: 20px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 12px; font-weight: 700; }
.approach-values i { width: 4px; height: 4px; background: var(--coral); }

.contact-section { padding-top: 68px; background: var(--lime); }
.contact-inner { display: grid; grid-template-columns: 1.3fr .7fr; gap: 50px; align-items: center; padding-bottom: 70px; }
.contact-lead h2 { margin-bottom: 28px; font-size: clamp(32px, 4vw, 52px); font-weight: 800; letter-spacing: -.055em; line-height: 1.35; }
.contact-details { display: grid; gap: 20px; padding-left: 38px; border-left: 1px solid rgb(20 33 38 / 24%); font-style: normal; }
.contact-item { display: grid; gap: 7px; }
.contact-item > span { color: #4b5a35; font-size: 8px; }
.contact-item a, .contact-item p { margin: 0; font-size: 14px; font-weight: 700; line-height: 1.8; }
.contact-item a { width: fit-content; border-bottom: 1px solid transparent; }
.contact-item a:hover { border-color: var(--ink); }
.site-footer { display: grid; min-height: 76px; grid-template-columns: 1fr 1fr auto; gap: 20px; align-items: center; border-top: 1px solid rgb(20 33 38 / 24%); }
.footer-brand { font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.footer-brand span { margin-left: 9px; color: var(--muted); font-size: 9px; font-weight: 500; letter-spacing: 0; }
.site-footer p { margin: 0; font-size: 10px; text-align: center; }
.site-footer small { font-size: 7px; text-align: right; }

[data-reveal] { opacity: 1; transform: none; transition: opacity .65s ease, transform .65s cubic-bezier(.2,.7,.2,1); }
.reveal-pending { opacity: 0; transform: translateY(16px); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
.capability-card:nth-child(2), .approach-steps li:nth-child(2) { transition-delay: .08s; }
.capability-card:nth-child(3), .approach-steps li:nth-child(3) { transition-delay: .16s; }
.capability-card:nth-child(4) { transition-delay: .24s; }

@media (max-width: 900px) {
  .shell { width: min(100% - 44px, 680px); }
  .site-header { height: 76px; }
  .menu-toggle { display: grid; width: 42px; height: 42px; align-content: center; justify-items: center; gap: 7px; padding: 0; background: transparent; border: 0; cursor: pointer; }
  .menu-toggle span { display: block; width: 25px; height: 2px; background: var(--ink); transition: transform .2s ease; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4.5px) rotate(-45deg); }
  .primary-nav { position: absolute; top: 75px; right: 0; left: 0; display: none; align-items: stretch; gap: 0; padding: 8px 22px 20px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 16px 20px rgb(20 33 38 / 8%); }
  .primary-nav.is-open { display: grid; }
  .primary-nav > a:not(.nav-cta) { padding: 15px 2px; border-bottom: 1px solid var(--line); }
  .nav-cta { justify-content: space-between; margin-top: 14px; }
  .hero { min-height: 0; grid-template-columns: 1fr; gap: 42px; padding-block: 54px 48px; }
  .hero h1 { font-size: clamp(42px, 9vw, 66px); }
  .hero-art { min-height: min(500px, 92vw); }
  .art-core { width: 155px; height: 155px; }
  .art-core span { font-size: 60px; }
  .signal-track { min-height: 68px; justify-content: flex-start; overflow-x: auto; white-space: nowrap; scrollbar-width: none; font-size: 11px; }
  .signal-track::-webkit-scrollbar { display: none; }
  .section-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-section { min-height: 0; padding-block: 74px; }
  .principle-card { min-height: 220px; padding: 29px; }
  .principle-card p { margin-top: 30px; font-size: 25px; }
  .capabilities-section { padding-block: 70px 58px; }
  .capabilities-heading { display: block; }
  .capabilities-heading h2 { margin-bottom: 16px; font-size: 34px; }
  .capabilities-heading > p { max-width: 500px; }
  .capability-card { min-height: 0; grid-template-columns: 40px 1fr 18px; gap: 12px; padding: 22px 4px; }
  .capability-card:hover { padding-inline: 8px; }
  .capability-main { display: block; }
  .capability-main h3 { margin-bottom: 8px; font-size: 16px; }
  .capability-main p { font-size: 11px; }
  .capabilities-footnote { margin-left: 52px; line-height: 1.7; }
  .approach-section { padding-block: 72px 64px; }
  .approach-heading { display: block; }
  .approach-heading h2 { margin-bottom: 15px; font-size: 34px; }
  .approach-steps { margin-top: 34px; }
  .approach-steps li { min-height: 172px; padding-right: 16px; }
  .approach-steps li + li { padding-left: 18px; }
  .approach-steps p { font-size: 11px; }
  .contact-inner { grid-template-columns: 1fr; gap: 36px; padding-bottom: 48px; }
  .contact-lead h2 { font-size: 36px; }
  .contact-details { grid-template-columns: 1fr 1fr; gap: 24px; padding: 25px 0 0; border-top: 1px solid rgb(20 33 38 / 24%); border-left: 0; }
  .contact-item:last-child { grid-column: 1 / -1; }
  .site-footer { grid-template-columns: 1fr auto; padding-block: 17px; }
  .site-footer p { display: none; }
  .site-footer small { max-width: 150px; line-height: 1.6; }
}

@media (max-width: 520px) {
  .shell { width: calc(100% - 40px); }
  .header-inner { gap: 10px; }
  .header-controls { gap: 8px; }
  .brand-copy strong { font-size: 20px; }
  .brand-copy small { font-size: 8px; }
  .language-switch { gap: 5px; font-size: 10px; }
  .menu-toggle { width: 32px; }
  .hero { gap: 32px; padding-top: 43px; }
  .eyebrow { margin-bottom: 25px; font-size: 8px; }
  .hero h1 { margin-bottom: 17px; font-size: clamp(39px, 10.4vw, 54px); }
  .hero-lede { margin-bottom: 22px; font-size: 14px; line-height: 1.85; }
  .hero-actions { gap: 17px; }
  .button { min-height: 46px; padding-inline: 16px; font-size: 11px; }
  .text-link { gap: 7px; font-size: 10px; }
  .hero-note { margin-top: 28px; font-size: 10px; }
  .hero-art { min-height: 340px; }
  .art-topline { top: 20px; right: 18px; left: 18px; font-size: 7px; }
  .art-core { width: 124px; height: 124px; }
  .art-core span { font-size: 50px; }
  .art-chip { padding: 8px 11px; font-size: 9px; }
  .chip-model { top: 25%; left: 7%; }
  .chip-data { top: 36%; right: 5%; }
  .chip-workflow { bottom: 23%; left: 22%; }
  .art-caption { right: 17px; bottom: 16px; font-size: 6px; }
  .signal-track { width: 100%; gap: 15px; padding-inline: 20px; }
  .signal-track i { width: 4px; height: 4px; flex: 0 0 4px; }
  .section-intro h2, .approach-heading h2 { font-size: 31px; }
  .section-intro > p:not(.section-kicker) { font-size: 13px; }
  .principle-card { min-height: 194px; }
  .capabilities-heading h2 { font-size: 31px; }
  .capability-card { grid-template-columns: 30px 1fr 15px; gap: 9px; }
  .capability-number { font-size: 9px; }
  .capability-main h3 { font-size: 14px; }
  .capability-main p { font-size: 10px; line-height: 1.75; }
  .approach-steps { grid-template-columns: 1fr; border-top: 0; }
  .approach-steps li, .approach-steps li + li { display: grid; min-height: 0; grid-template-columns: 42px 1fr; column-gap: 15px; padding: 19px 0; border-top: 1px solid var(--line); border-left: 0; }
  .step-index { grid-row: span 2; margin: 0; }
  .approach-steps h3 { margin: 0 0 5px; font-size: 15px; }
  .approach-steps p { max-width: none; }
  .approach-values { flex-wrap: wrap; gap: 11px; font-size: 10px; }
  .contact-section { padding-top: 52px; }
  .contact-lead h2 { font-size: 31px; }
  .contact-details { gap: 20px 14px; }
  .contact-item a, .contact-item p { font-size: 12px; }
  .footer-brand { font-size: 11px; }
  .footer-brand span { display: block; margin: 4px 0 0; font-size: 8px; }
  .site-footer small { max-width: 130px; font-size: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

html[lang="en"] .hero h1 { font-size: clamp(42px, 4.5vw, 65px); letter-spacing: -.05em; line-height: 1.12; }
html[lang="en"] .hero-lede { font-size: 16px; line-height: 1.75; }
html[lang="en"] .brand-copy small { font-size: 8px; }
html[lang="en"] .capability-main h3 { overflow-wrap: anywhere; }
@media (max-width: 520px) {
  html[lang="en"] .hero h1 { font-size: clamp(34px, 9vw, 46px); }
  html[lang="en"] .brand-copy small { font-size: 7px; }
  html[lang="en"] .contact-lead h2 { font-size: 29px; }
}