:root {
  --ink: #071b18;
  --ink-soft: #17332f;
  --paper: #f2f0e8;
  --paper-deep: #e7e3d7;
  --signal: #b9f227;
  --signal-deep: #8ac411;
  --mint: #d9f7a7;
  --white: #ffffff;
  --line: rgba(7, 27, 24, 0.16);
  --sans: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --display: "Avenir Next", "DIN Alternate", "Source Han Sans SC", "PingFang SC", sans-serif;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.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;
  left: 16px;
  top: -60px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--signal);
  color: var(--ink);
  transition: top .2s;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  transition: background .25s, height .25s, box-shadow .25s;
}
.site-header.is-scrolled {
  height: 66px;
  color: var(--ink);
  background: rgba(242, 240, 232, .94);
  border-color: var(--line);
  box-shadow: 0 10px 30px rgba(7, 27, 24, .07);
  backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand img { border-radius: 11px; }
.brand-copy { display: flex; flex-direction: column; gap: 1px; }
.brand-copy strong { font-size: 15px; letter-spacing: .08em; }
.brand-copy small { font: 500 9px/1 var(--display); letter-spacing: .15em; opacity: .58; }
.site-nav { display: flex; align-items: center; gap: 34px; font-size: 14px; }
.site-nav > a { position: relative; }
.site-nav > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -9px;
  width: 100%;
  height: 1px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s;
}
.site-nav > a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { padding: 10px 16px; border: 1px solid currentColor; border-radius: 999px; }
.menu-button { display: none; }

.hero {
  position: relative;
  min-height: 810px;
  height: 100svh;
  max-height: 960px;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(440px, .9fr);
  grid-template-rows: 1fr auto;
  align-items: center;
  gap: 24px 70px;
  padding: 120px max(24px, calc((100vw - var(--max)) / 2)) 38px;
  color: var(--white);
  background:
    radial-gradient(circle at 73% 42%, rgba(70, 129, 83, .26), transparent 36%),
    linear-gradient(135deg, #09241f 0%, #061612 76%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: .28;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, transparent 2%, #000 45%, #000 100%);
}
.hero-glow {
  position: absolute;
  width: 560px;
  height: 560px;
  right: -160px;
  top: -240px;
  border-radius: 50%;
  background: rgba(185, 242, 39, .08);
  filter: blur(3px);
}
.hero-copy, .hero-system, .hero-meta { position: relative; z-index: 2; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0 0 26px;
  font: 600 11px/1 var(--display);
  letter-spacing: .24em;
  color: rgba(255,255,255,.6);
}
.eyebrow span { width: 24px; height: 1px; background: var(--signal); }
.eyebrow.dark { color: rgba(7,27,24,.5); }
.hero h1 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(54px, 5.25vw, 82px);
  line-height: 1.06;
  letter-spacing: -.055em;
  font-weight: 700;
}
.hero h1 span { color: var(--signal); }
.hero-lead {
  max-width: 610px;
  margin: 28px 0 0;
  color: rgba(255,255,255,.66);
  font-size: 17px;
  line-height: 1.9;
}
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 38px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  min-height: 54px;
  padding: 0 22px;
  font-size: 14px;
  font-weight: 700;
}
.button-primary {
  color: var(--ink);
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(185, 242, 39, .25);
  transition: transform .25s, box-shadow .25s, background .25s;
}
.button-primary:hover { transform: translateY(-3px); background: #c7ff35; box-shadow: 0 12px 40px rgba(185,242,39,.18); }
.text-link { color: rgba(255,255,255,.8); font-size: 14px; }
.text-link span { margin-left: 8px; transition: margin .2s; }
.text-link:hover span { margin-left: 13px; }

.hero-system { width: min(100%, 490px); aspect-ratio: 1; justify-self: end; }
.system-core {
  position: absolute;
  z-index: 4;
  left: 50%;
  top: 50%;
  width: 162px;
  height: 162px;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(185,242,39,.62);
  border-radius: 50%;
  background: rgba(8,29,25,.84);
  box-shadow: 0 0 70px rgba(185,242,39,.1), inset 0 0 30px rgba(185,242,39,.06);
}
.system-core img { width: 62px; margin-bottom: 10px; }
.system-core strong { font: 700 12px/1 var(--display); letter-spacing: .2em; }
.system-core small { margin-top: 6px; font: 500 7px/1 var(--display); letter-spacing: .17em; opacity: .42; }
.system-orbit { position: absolute; inset: 12%; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; }
.system-orbit::before, .system-orbit::after {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 16px var(--signal);
}
.system-orbit::before { top: 10%; left: 22%; }
.system-orbit::after { right: 8%; bottom: 29%; }
.orbit-one { animation: orbit 20s linear infinite; }
.orbit-two { inset: 25%; border-style: dashed; animation: orbit 13s linear infinite reverse; }
.system-node {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  color: rgba(255,255,255,.68);
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  font-size: 11px;
  backdrop-filter: blur(8px);
}
.system-node i { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); }
.node-ai { left: 0; top: 25%; }
.node-data { right: 1%; top: 20%; }
.node-service { right: 2%; bottom: 20%; }
.system-scan {
  position: absolute;
  left: 18%;
  right: 18%;
  top: 50%;
  z-index: 2;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--signal), transparent);
  box-shadow: 0 0 14px rgba(185,242,39,.55);
  animation: scan 3.6s ease-in-out infinite;
}
@keyframes orbit { to { transform: rotate(360deg); } }
@keyframes scan { 0%,100% { transform: translateY(-105px); opacity: 0; } 15%,85% { opacity: .85; } 50% { transform: translateY(105px); } }

.hero-meta {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(600px, 100%);
  gap: 18px;
}
.hero-meta div { display: flex; gap: 14px; padding-top: 17px; border-top: 1px solid rgba(255,255,255,.2); }
.hero-meta span { color: var(--signal); font: 600 10px/1.3 var(--display); }
.hero-meta p { margin: 0; color: rgba(255,255,255,.54); font-size: 12px; line-height: 1.55; }

.marquee { overflow: hidden; padding: 17px 0; color: var(--ink); background: var(--signal); }
.marquee-track { width: max-content; display: flex; align-items: center; gap: 34px; animation: marquee 28s linear infinite; }
.marquee-track span { font: 700 12px/1 var(--sans); letter-spacing: .12em; }
.marquee-track i { width: 5px; height: 5px; transform: rotate(45deg); background: var(--ink); }
@keyframes marquee { to { transform: translateX(-50%); } }

.section { padding: 132px max(24px, calc((100vw - var(--max)) / 2)); }
.section-heading { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 80px; margin-bottom: 62px; }
.section-heading h2, .about-copy h2, .approach-intro h2, .company-heading h2 {
  margin: 0;
  font-size: clamp(38px, 4vw, 58px);
  line-height: 1.16;
  letter-spacing: -.045em;
}
.section-heading > p { max-width: 430px; margin: 0 0 4px; color: rgba(7,27,24,.63); line-height: 1.9; }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.capability-card {
  position: relative;
  min-height: 430px;
  padding: 36px 34px 32px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background .3s, transform .3s;
}
.capability-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--signal-deep);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}
.capability-card:hover { background: rgba(255,255,255,.48); transform: translateY(-5px); }
.capability-card:hover::after { transform: scaleX(1); }
.card-featured { color: var(--white); background: var(--ink); }
.card-featured:hover { background: #0c2a25; }
.card-number { position: absolute; right: 30px; top: 27px; color: currentColor; opacity: .35; font: 600 11px/1 var(--display); }
.card-icon { width: 54px; height: 54px; display: grid; place-items: center; margin-bottom: 56px; border: 1px solid currentColor; border-radius: 50%; opacity: .72; }
.card-icon svg { width: 28px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.capability-card h3 { margin: 0 0 16px; font-size: 23px; letter-spacing: -.025em; }
.capability-card p { margin: 0; min-height: 72px; color: currentColor; opacity: .62; font-size: 14px; line-height: 1.8; }
.capability-card ul { margin: 24px 0 0; padding: 18px 0 0; border-top: 1px solid currentColor; border-color: rgba(127,127,127,.25); list-style: none; }
.capability-card li { position: relative; padding-left: 14px; margin: 8px 0; font-size: 12px; opacity: .76; }
.capability-card li::before { content: ""; position: absolute; left: 0; top: .7em; width: 5px; height: 1px; background: var(--signal-deep); }
.scope-note { display: flex; gap: 20px; margin: 30px 0 0; padding: 18px 22px; color: rgba(7,27,24,.55); background: rgba(255,255,255,.34); border-left: 3px solid var(--signal-deep); font-size: 12px; line-height: 1.8; }
.scope-note span { flex: 0 0 auto; color: var(--ink); font-weight: 700; }

.approach {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 100px;
  color: var(--white);
  background: var(--ink);
}
.approach-intro { position: sticky; top: 130px; align-self: start; }
.approach-intro > p:last-child { max-width: 480px; margin: 30px 0 0; color: rgba(255,255,255,.58); line-height: 1.9; }
.approach-steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.14); }
.approach-steps li { display: grid; grid-template-columns: 70px 1fr; gap: 24px; padding: 42px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.approach-steps > li > span { color: var(--signal); font: 600 11px/1.4 var(--display); }
.approach-steps h3 { margin: 0 0 14px; font-size: 25px; }
.approach-steps p { margin: 0; color: rgba(255,255,255,.5); font-size: 14px; line-height: 1.8; }

.about { display: grid; grid-template-columns: .9fr 1.1fr; gap: 110px; align-items: center; }
.about-visual { position: relative; aspect-ratio: 4/4.6; overflow: hidden; color: var(--white); background: var(--ink); }
.about-monogram { position: absolute; left: -4%; bottom: -2%; font-size: clamp(100px, 14vw, 210px); line-height: .82; font-weight: 800; letter-spacing: -.12em; color: rgba(255,255,255,.06); white-space: nowrap; }
.about-year { position: absolute; left: 11%; top: 13%; display: flex; flex-direction: column; }
.about-year span { color: var(--signal); font: 600 10px/1 var(--display); letter-spacing: .22em; }
.about-year strong { margin-top: 8px; font: 700 clamp(60px, 7vw, 94px)/1 var(--display); letter-spacing: -.06em; }
.about-lines {
  position: absolute;
  width: 72%;
  aspect-ratio: 1;
  right: -19%;
  bottom: -6%;
  border: 1px solid rgba(185,242,39,.32);
  border-radius: 50%;
}
.about-lines::before, .about-lines::after { content:""; position:absolute; inset: 16%; border: 1px solid rgba(185,242,39,.2); border-radius: 50%; }
.about-lines::after { inset: 32%; }
.about-copy { max-width: 630px; }
.about-lead { margin: 34px 0 18px; font-size: 20px; line-height: 1.75; }
.about-copy > p:not(.eyebrow):not(.about-lead) { color: rgba(7,27,24,.6); line-height: 1.9; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 52px; padding-top: 26px; border-top: 1px solid var(--line); }
.about-stats div { display: flex; flex-direction: column; gap: 7px; }
.about-stats strong { font: 700 28px/1 var(--display); }
.about-stats strong span { font-family: var(--sans); font-size: 13px; margin-left: 3px; }
.about-stats div > span { color: rgba(7,27,24,.48); font-size: 11px; }

.company { padding: 110px max(24px, calc((100vw - var(--max)) / 2)); color: var(--white); background: #102b26; }
.company-inner { display: grid; grid-template-columns: .68fr 1.32fr; gap: 90px; }
.company-heading > p:last-child { color: rgba(255,255,255,.5); line-height: 1.8; }
.company-details { margin: 0; border-top: 1px solid rgba(255,255,255,.16); }
.company-details div { display: grid; grid-template-columns: 180px 1fr; gap: 30px; padding: 21px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.company-details dt { color: rgba(255,255,255,.42); font-size: 12px; }
.company-details dd { margin: 0; font-size: 14px; }

.site-footer { padding: 56px max(24px, calc((100vw - var(--max)) / 2)) 24px; color: var(--white); background: #061612; }
.footer-top { display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 40px; padding-bottom: 52px; }
.brand-footer img { background: var(--signal); }
.footer-top > p { margin: 0; color: rgba(255,255,255,.45); font-size: 13px; }
.back-top { padding: 10px 0; color: rgba(255,255,255,.72); font-size: 12px; }
.back-top span { display: inline-grid; place-items: center; width: 30px; height: 30px; margin-left: 9px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.38); font-size: 11px; }
.footer-bottom p { margin: 0; }
.filing-links { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.filing-links a { transition: color .2s; }
.filing-links a:hover { color: var(--signal); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.capability-grid .reveal:nth-child(2), .approach-steps .reveal:nth-child(2) { transition-delay: .08s; }
.capability-grid .reveal:nth-child(3), .approach-steps .reveal:nth-child(3) { transition-delay: .16s; }

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr .78fr; gap: 30px; }
  .hero-system { transform: scale(.85); transform-origin: right center; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .approach { grid-template-columns: 1fr 1.15fr; gap: 60px; }
  .about { gap: 65px; }
  .company-inner { gap: 60px; }
}

@media (max-width: 760px) {
  .site-header { height: 68px; padding-inline: 20px; }
  .menu-button {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
    width: 42px;
    height: 42px;
    padding: 0 10px;
    color: currentColor;
    background: transparent;
    border: 1px solid currentColor;
    border-radius: 50%;
  }
  .menu-button span:not(.sr-only) { width: 100%; height: 1px; background: currentColor; transition: transform .2s; }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
  .site-nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    display: grid;
    gap: 0;
    padding: 8px 20px 20px;
    color: var(--ink);
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 30px rgba(7,27,24,.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: .2s ease;
  }
  .site-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .site-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); }
  .nav-cta { border: 0; border-radius: 0; }

  .hero {
    min-height: 820px;
    height: auto;
    max-height: none;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    align-items: start;
    gap: 10px;
    padding: 125px 20px 30px;
  }
  .hero h1 { font-size: clamp(45px, 13vw, 64px); }
  .hero h1 span { display: block; }
  .hero-lead { font-size: 15px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 22px; }
  .hero-system { width: min(100%, 380px); justify-self: center; margin: 10px 0; transform: none; }
  .hero-meta { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .hero-meta div { flex-direction: column; gap: 6px; }
  .system-node { font-size: 9px; }

  .section { padding: 86px 20px; }
  .section-heading { grid-template-columns: 1fr; gap: 26px; margin-bottom: 42px; }
  .section-heading h2, .about-copy h2, .approach-intro h2, .company-heading h2 { font-size: 38px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: auto; padding: 30px 26px; }
  .card-icon { margin-bottom: 38px; }
  .capability-card p { min-height: auto; }
  .scope-note { flex-direction: column; gap: 8px; }
  .approach { grid-template-columns: 1fr; gap: 55px; }
  .approach-intro { position: static; }
  .approach-steps li { grid-template-columns: 45px 1fr; }
  .about { grid-template-columns: 1fr; gap: 50px; }
  .about-visual { aspect-ratio: 4/3.6; }
  .about-stats { gap: 10px; }
  .about-stats strong { font-size: 24px; }
  .company { padding: 80px 20px; }
  .company-inner { grid-template-columns: 1fr; gap: 45px; }
  .company-details div { grid-template-columns: 1fr; gap: 7px; }
  .footer-top { grid-template-columns: 1fr auto; }
  .footer-top > p { grid-column: 1 / -1; grid-row: 2; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
}

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