:root {
  --ink: #142c3b;
  --ink-deep: #0d2230;
  --paper: #f4f7f8;
  --white: #ffffff;
  --line: #cad8de;
  --muted: #637a87;
  --mint: #9fe4c0;
  --mint-deep: #287b62;
  --sky: #b8d9ef;
  --amber: #f0be68;
  --coral: #ee8e76;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
img { display: block; max-width: 100%; }

.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; background: var(--white); padding: 10px 16px; }
.skip-link:focus { top: 16px; }

.site-header {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,.16);
  position: relative;
  z-index: 10;
  color: white;
}
.brand { display: flex; gap: 13px; align-items: center; text-decoration: none; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 10px 10px 10px 3px;
  color: var(--ink-deep);
  background: var(--mint);
  font-size: 23px;
  font-weight: 800;
}
.brand strong { display: block; font-size: 13px; letter-spacing: .08em; }
.brand small { display: block; opacity: .6; font-size: 11px; margin-top: 1px; }
nav { display: flex; align-items: center; gap: 30px; font-size: 14px; }
nav a { text-decoration: none; }
.nav-cta { border: 1px solid rgba(255,255,255,.35); padding: 8px 15px; border-radius: 6px; }

main { margin-top: -92px; }
.hero {
  min-height: 760px;
  color: var(--white);
  background:
    radial-gradient(circle at 72% 43%, rgba(159,228,192,.12), transparent 23%),
    linear-gradient(120deg, var(--ink-deep), #153747 72%, #1d4651);
  padding: 190px max(24px, calc((100vw - var(--max)) / 2)) 100px;
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 70px;
  align-items: center;
  overflow: hidden;
}
.kicker { color: var(--mint); font-weight: 700; margin: 0 0 22px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(44px, 5.5vw, 72px); line-height: 1.14; letter-spacing: -.045em; margin-bottom: 28px; }
.intro { max-width: 620px; color: #c7d7dd; font-size: 18px; }
.hero-actions, .bench-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 13px; margin-top: 34px; }
.button { min-height: 46px; border-radius: 6px; padding: 11px 19px; border: 0; text-decoration: none; cursor: pointer; font-weight: 700; }
.button.primary { background: var(--mint); color: var(--ink-deep); }
.button.quiet { color: white; border: 1px solid rgba(255,255,255,.3); }
.button:hover { filter: brightness(.96); }
.button:focus-visible, a:focus-visible, button:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }

.system-map { height: 440px; position: relative; }
.system-map::before, .system-map::after {
  content: "";
  position: absolute;
  inset: 50%;
  width: 330px;
  height: 330px;
  translate: -50% -50%;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
}
.system-map::after { width: 190px; height: 190px; border-style: dashed; }
.map-core { position: absolute; left: 50%; top: 50%; translate: -50% -50%; width: 98px; height: 98px; display: grid; place-items: center; align-content: center; background: var(--mint); color: var(--ink-deep); border-radius: 50%; z-index: 2; box-shadow: 0 0 0 14px rgba(159,228,192,.06); }
.map-core span { font-size: 39px; line-height: 1; font-weight: 800; }
.map-core small { font-size: 9px; letter-spacing: .18em; }
.map-node { position: absolute; width: 174px; padding: 16px 18px; text-decoration: none; border: 1px solid rgba(255,255,255,.18); background: rgba(12,32,44,.72); backdrop-filter: blur(8px); }
.map-node b, .map-node span { display: block; }
.map-node b { font-size: 15px; }
.map-node span { color: #a9c0ca; font-size: 12px; }
.node-video { left: 4%; top: 7%; border-left: 4px solid var(--mint); }
.node-shipping { right: 1%; top: 20%; border-left: 4px solid var(--sky); }
.node-jarvis { left: 2%; bottom: 10%; border-left: 4px solid var(--amber); }
.node-fund { right: 8%; bottom: 3%; border-left: 4px solid var(--coral); }

.bench-section { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: 112px 0; }
.section-heading { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: end; margin-bottom: 54px; }
h2 { font-size: clamp(34px, 4vw, 52px); line-height: 1.18; letter-spacing: -.035em; margin-bottom: 0; }
.section-heading p { color: var(--muted); max-width: 520px; margin-bottom: 4px; }
.bench { display: grid; grid-template-columns: .83fr 1.17fr; min-height: 510px; margin-bottom: 34px; background: var(--white); border: 1px solid var(--line); }
.bench.reverse { grid-template-columns: 1.17fr .83fr; }
.bench.reverse .bench-copy { order: 2; }
.bench-copy { padding: 56px 46px; align-self: center; }
.bench h3, .compact-bench h3 { font-size: 30px; line-height: 1.25; letter-spacing: -.025em; margin: 18px 0; }
.bench-lead { font-size: 17px; }
.bench ul { padding-left: 20px; color: var(--muted); }
.status { display: inline-flex; align-items: center; gap: 8px; color: var(--mint-deep); font-size: 13px; font-weight: 700; }
.status i { width: 9px; height: 9px; border-radius: 50%; background: #42b983; box-shadow: 0 0 0 5px rgba(66,185,131,.11); }
.status-safe { color: #37718e; }
.status-safe i { background: #61a6ca; box-shadow: 0 0 0 5px rgba(97,166,202,.11); }
.status-building { color: #886124; }
.status-building i { background: var(--amber); box-shadow: 0 0 0 5px rgba(240,190,104,.15); }
.bench-actions { margin-top: 30px; }
.bench-actions span { color: var(--muted); font-size: 12px; }
.bench-screen { margin: 0; padding: 27px; background: #dce7eb; display: grid; align-content: center; min-width: 0; }
.bench-screen img { width: 100%; border: 1px solid #adc0c9; box-shadow: 0 16px 40px rgba(13,34,48,.16); }
.bench-screen figcaption { color: #59717d; font-size: 11px; margin-top: 12px; }

.bench-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
.compact-bench { border: 1px solid var(--line); background: white; }
.compact-visual { height: 240px; position: relative; overflow: hidden; background: var(--ink); color: white; }
.compact-copy { padding: 36px 38px 40px; }
.compact-copy p { color: var(--muted); min-height: 55px; }
.text-action { border: 0; border-bottom: 1px solid var(--ink); background: transparent; padding: 0 0 4px; color: var(--ink); font-weight: 700; cursor: pointer; }
.jarvis-visual { padding: 50px; display: flex; flex-direction: column; justify-content: center; }
.jarvis-visual span { display: block; width: fit-content; padding: 10px 15px; border-radius: 15px 15px 15px 3px; }
.jarvis-visual .prompt { background: rgba(255,255,255,.11); }
.jarvis-visual .reply { background: var(--mint); color: var(--ink-deep); margin: 15px 0 0 70px; }
.pulse { position: absolute; right: 50px; top: 42px; width: 10px; height: 10px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 10px rgba(159,228,192,.08), 0 0 0 24px rgba(159,228,192,.04); }
.fund-visual { padding: 34px 32px; background: #173644; }
.fund-visual svg { width: 100%; height: 150px; overflow: visible; }
.grid-line { fill: none; stroke: rgba(255,255,255,.1); }
.chart-line { fill: none; stroke: var(--amber); stroke-width: 3; }
.fund-visual span { color: #bdd0d8; font-size: 12px; }

.method { background: #d9e5e9; padding: 100px max(24px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }
.method ol { list-style: none; padding: 0; margin: 0; counter-reset: method; }
.method li { counter-increment: method; display: grid; grid-template-columns: 42px 1fr; column-gap: 14px; padding: 19px 0; border-top: 1px solid #aebfc6; }
.method li::before { content: counter(method); grid-row: span 2; font-size: 12px; color: var(--muted); padding-top: 4px; }
.method li strong, .method li span { display: block; }
.method li span { color: var(--muted); font-size: 14px; }

.profile { padding: 100px max(24px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr .8fr; gap: 90px; align-items: center; background: var(--white); }
.profile-copy > p:last-child { max-width: 680px; margin: 26px 0 0; color: var(--muted); font-size: 17px; }
.kicker.dark { color: var(--mint-deep); margin-bottom: 16px; }
.contact-card { border-left: 5px solid var(--mint); padding: 30px 34px; background: var(--paper); }
.contact-card strong { font-size: 18px; }
.contact-card p { color: var(--muted); margin: 12px 0 24px; }
.contact-card .button { color: var(--ink); background: var(--white); border: 1px solid var(--line); }

footer { min-height: 150px; background: var(--ink-deep); color: white; padding: 45px max(24px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; justify-content: space-between; gap: 24px; font-size: 13px; }
footer div { display: flex; gap: 12px; align-items: center; }
footer p { margin: 0; color: #8fa9b4; }
.brand-mark.small { width: 34px; height: 34px; font-size: 18px; }
.notice { position: fixed; left: 50%; bottom: 24px; translate: -50%; z-index: 30; width: min(520px, calc(100% - 32px)); padding: 14px 18px; color: white; background: var(--ink-deep); border-left: 4px solid var(--mint); box-shadow: 0 10px 36px rgba(0,0,0,.25); }

@media (max-width: 900px) {
  .site-header { width: min(calc(100% - 32px), var(--max)); }
  nav a:not(.nav-cta) { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 150px; gap: 50px; }
  .system-map { height: 380px; }
  .bench-section { width: min(calc(100% - 32px), var(--max)); }
  .section-heading, .bench, .bench.reverse, .bench-pair, .method, .profile { grid-template-columns: 1fr; }
  .bench.reverse .bench-copy { order: initial; }
  .bench-screen { min-height: 380px; }
  .method { gap: 45px; }
  .profile { gap: 40px; }
}

@media (max-width: 560px) {
  .site-header { min-height: 76px; }
  .brand small { display: none; }
  .nav-cta { padding: 7px 10px; }
  main { margin-top: -76px; }
  .hero { min-height: 800px; padding-top: 125px; padding-bottom: 65px; }
  h1 { font-size: 42px; }
  .intro { font-size: 16px; }
  .system-map { height: 390px; }
  .system-map::before { width: 280px; height: 280px; }
  .system-map::after { width: 150px; height: 150px; }
  .map-core { width: 78px; height: 78px; }
  .map-node { width: 145px; padding: 12px 13px; }
  .node-video { left: 0; }
  .node-shipping { right: 0; }
  .node-jarvis { left: 0; }
  .node-fund { right: 0; }
  .bench-section { padding: 75px 0; }
  .section-heading { gap: 18px; margin-bottom: 36px; }
  .bench-copy, .compact-copy { padding: 36px 25px; }
  .bench-screen { padding: 14px; min-height: 250px; }
  .compact-visual { height: 210px; }
  .jarvis-visual { padding: 28px; }
  footer { flex-direction: column; align-items: flex-start; }
}

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