:root {
  --paper: #ffffff;
  --paper-deep: #ffffff;
  --ink: #0c1c2e;
  --ink-soft: #40505c;
  --green: #0b7a68;
  --green-dark: #07594f;
  --green-pale: #cae2d8;
  --coral: #ef6a4e;
  --yellow: #e5b955;
  --line: rgba(12, 28, 46, 0.15);
  --display: "Arial Narrow", "Avenir Next Condensed", "Helvetica Neue", sans-serif;
  --heading: Arial, "Helvetica Neue", Helvetica, sans-serif;
  --body: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background: #ffffff;
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

.page-shell {
  overflow: hidden;
}

.wrap {
  width: min(1220px, calc(100% - 72px));
  margin-inline: auto;
}

.site-header {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand img {
  width: 31px;
  height: 31px;
}

.header-meta,
.closing-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header-end {
  display: flex;
  align-items: center;
  gap: 24px;
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
}

.language-switcher button {
  min-width: 42px;
  height: 28px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  color: var(--ink-soft);
  background: transparent;
  font: inherit;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.language-switcher button:hover {
  color: var(--green-dark);
}

.language-switcher button:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.language-switcher button.is-active {
  color: white;
  background: var(--green-dark);
  box-shadow: 0 3px 10px rgba(7, 89, 79, 0.18);
}

.header-meta i,
.closing-meta i {
  width: 4px;
  height: 4px;
  background: var(--coral);
  border-radius: 50%;
}

.hero {
  min-height: 720px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 56px;
  padding-block: 84px 96px;
}

.eyebrow {
  margin: 0 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--green-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow > span {
  width: 28px;
  height: 2px;
  background: var(--coral);
}

.hero h1,
.section-heading h2,
.carriers-intro h2,
.architecture-copy h2,
.closing-section h2 {
  margin: 0;
  font-family: var(--heading);
  letter-spacing: -0.028em;
  font-weight: 800;
  line-height: 0.98;
}

.hero h1 {
  max-width: 720px;
  font-size: clamp(52px, 3.9vw, 56px);
}

html[lang="zh-CN"] .hero h1,
html[lang="zh-CN"] .section-heading h2,
html[lang="zh-CN"] .carriers-intro h2,
html[lang="zh-CN"] .architecture-copy h2,
html[lang="zh-CN"] .closing-section h2,
html[lang="zh-CN"] .loop-grid h3,
html[lang="zh-CN"] .carrier-stack h3 {
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

html[lang="zh-CN"] .hero h1 {
  max-width: 690px;
  font-size: 62px;
}

@media (min-width: 761px) {
  html[lang="zh-CN"] .hero h1 em {
    white-space: nowrap;
  }
}

html[lang="zh-CN"] .section-heading h2,
html[lang="zh-CN"] .carriers-intro h2,
html[lang="zh-CN"] .architecture-copy h2 {
  font-size: clamp(46px, 4.4vw, 62px);
}

html[lang="zh-CN"] .closing-section h2 {
  font-size: clamp(54px, 5.8vw, 78px);
}

.hero h1 em {
  color: var(--green);
  font-style: normal;
}

.hero-lede {
  max-width: 590px;
  margin: 36px 0 30px;
  color: var(--ink-soft);
  font-size: 19px;
  line-height: 1.65;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.hero-tags span {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.38);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-orbit {
  position: relative;
  min-height: 540px;
  isolation: isolate;
}

.orbit-grid {
  position: absolute;
  inset: 2% 0;
  z-index: -3;
  opacity: 0.38;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle, black 15%, transparent 68%);
}

.orbit-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(11, 122, 104, 0.38);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-ring::before,
.orbit-ring::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  background: var(--coral);
  border: 5px solid var(--paper);
  border-radius: 50%;
}

.orbit-ring-large {
  width: 470px;
  height: 470px;
}

.orbit-ring-large::before {
  top: 54px;
  right: 48px;
}

.orbit-ring-large::after {
  bottom: 25px;
  left: 122px;
  background: var(--yellow);
}

.orbit-ring-small {
  width: 300px;
  height: 300px;
  border-style: dashed;
  opacity: 0.7;
}

.orbit-ring-small::before {
  top: 35px;
  left: 24px;
  background: var(--green);
}

.orbit-ring-small::after {
  bottom: 35px;
  right: 24px;
}

.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 168px;
  height: 168px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  color: white;
  background: var(--ink);
  box-shadow: 0 28px 80px rgba(12, 28, 46, 0.28);
  transform: translate(-50%, -50%);
}

.orbit-core img {
  width: 44px;
  filter: brightness(0) invert(1);
}

.orbit-core span {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.orbit-core small {
  color: rgba(255, 255, 255, 0.56);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.orbit-node {
  position: absolute;
  min-width: 172px;
  min-height: 78px;
  padding: 18px 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-content: center;
  gap: 4px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 32px rgba(12, 28, 46, 0.08);
  backdrop-filter: blur(8px);
}

.orbit-node b {
  grid-row: span 2;
  color: var(--coral);
  font-family: var(--display);
  font-size: 17px;
  line-height: 1;
}

.orbit-node span {
  font-size: 14px;
  font-weight: 850;
  letter-spacing: 0.1em;
}

.orbit-node small {
  color: var(--ink-soft);
  font-size: 12px;
}

.node-run { top: 32px; left: 46px; }
.node-capture { top: 80px; right: -8px; }
.node-evolve { right: 12px; bottom: 68px; }
.node-continue { bottom: 18px; left: 22px; }

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

.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.signal-grid article {
  min-height: 180px;
  padding: 46px 38px;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 20px;
  border-left: 1px solid rgba(255, 255, 255, 0.13);
}

.signal-grid article:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.13);
}

.signal-index {
  color: var(--coral);
  font-family: var(--display);
  font-size: 12px;
  font-weight: 850;
}

.signal-grid h2 {
  margin: 0 0 9px;
  font-family: var(--heading);
  font-size: 19px;
  letter-spacing: -0.015em;
}

.signal-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  line-height: 1.6;
}

.product-section,
.carriers-section,
.closing-section {
  padding-block: 140px;
}

.section-heading {
  margin-bottom: 58px;
  display: grid;
  grid-template-columns: 1fr minmax(320px, 460px);
  align-items: end;
  gap: 72px;
}

.section-heading h2,
.carriers-intro h2,
.architecture-copy h2 {
  font-size: clamp(44px, 3.9vw, 56px);
}

.section-heading > p,
.carriers-intro > p:last-child,
.architecture-copy > p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.7;
}

.product-frame {
  overflow: hidden;
  border: 1px solid rgba(12, 28, 46, 0.28);
  border-radius: 18px;
  background: #101010;
  box-shadow: 0 36px 90px rgba(12, 28, 46, 0.18);
}

.frame-bar {
  height: 54px;
  padding-inline: 22px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  color: rgba(255, 255, 255, 0.72);
  background: var(--ink);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.traffic-lights {
  display: flex;
  gap: 7px;
}

.traffic-lights i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--coral);
}

.traffic-lights i:nth-child(2) { background: var(--yellow); }
.traffic-lights i:nth-child(3) { background: var(--green); }

.frame-state {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
}

.frame-state i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #55d6ae;
  box-shadow: 0 0 0 4px rgba(85, 214, 174, 0.12);
}

.product-frame > img {
  width: 100%;
  height: auto;
  aspect-ratio: 2517 / 1385;
  object-fit: contain;
  object-position: center;
}

.product-caption {
  margin-top: 26px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.product-caption i {
  width: 26px;
  height: 1px;
  background: var(--coral);
}

.loop-section {
  padding-block: 140px;
  color: white;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    var(--green-dark);
  background-size: 64px 64px;
}

.light-heading .eyebrow,
.loop-section .eyebrow {
  color: #a7d7ca;
}

.light-heading > p {
  color: rgba(255, 255, 255, 0.64);
}

.loop-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.loop-grid article {
  min-height: 360px;
  padding: 32px 27px 30px;
  display: flex;
  flex-direction: column;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.loop-grid article:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.loop-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.loop-top span {
  color: var(--yellow);
  font-family: var(--display);
  font-size: 12px;
  font-weight: 850;
}

.loop-top i {
  width: 8px;
  height: 8px;
  border: 1px solid #a7d7ca;
  border-radius: 50%;
}

.loop-grid h3 {
  margin: 72px 0 18px;
  font-family: var(--heading);
  font-size: 36px;
  letter-spacing: -0.018em;
}

.loop-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
  line-height: 1.65;
}

.loop-grid small {
  margin-top: auto;
  color: #a7d7ca;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.carriers-section {
  display: grid;
  grid-template-columns: minmax(330px, 0.8fr) minmax(520px, 1.2fr);
  gap: 100px;
}

.carriers-intro {
  position: sticky;
  top: 48px;
  align-self: start;
}

.carriers-intro h2 {
  margin-bottom: 34px;
}

.carrier-stack {
  border-top: 1px solid var(--line);
}

.carrier-stack article {
  min-height: 250px;
  padding: 38px 0;
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: 34px;
  border-bottom: 1px solid var(--line);
}

.carrier-stack small {
  color: var(--green);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.15em;
}

.carrier-stack h3 {
  margin: 12px 0 12px;
  font-family: var(--heading);
  font-size: clamp(30px, 2.3vw, 36px);
  line-height: 1.12;
  letter-spacing: -0.015em;
}

.carrier-stack p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.65;
}

.carrier-mark {
  width: 124px;
  height: 124px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--paper-deep);
}

.memory-mark span {
  position: absolute;
  border: 2px solid var(--green);
  border-radius: 50%;
}

.memory-mark span:nth-child(1) { width: 78px; height: 78px; }
.memory-mark span:nth-child(2) { width: 48px; height: 48px; }
.memory-mark span:nth-child(3) { width: 12px; height: 12px; background: var(--coral); border: 0; }

.skill-mark {
  display: grid;
  grid-template-columns: repeat(2, 28px);
  gap: 6px;
}

.skill-mark i {
  width: 28px;
  height: 28px;
  background: var(--green);
}

.skill-mark i:nth-child(2),
.skill-mark i:nth-child(3) {
  background: var(--coral);
}

.system-mark {
  flex-direction: column;
  gap: 2px;
  color: var(--green);
  font-family: var(--display);
  font-size: 32px;
  font-weight: 400;
}

.system-mark span:nth-child(2) { margin-left: 26px; color: var(--coral); }

.architecture-section {
  padding-block: 124px;
  background: var(--paper-deep);
  border-block: 1px solid var(--line);
}

.architecture-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  align-items: center;
  gap: 100px;
}

.architecture-copy h2 {
  margin-bottom: 28px;
}

.architecture-map {
  display: grid;
  grid-template-columns: 1fr 150px 1fr;
  align-items: center;
}

.architecture-map article {
  min-height: 230px;
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.45);
}

.architecture-map article:last-child {
  color: white;
  background: var(--ink);
}

.architecture-map small {
  margin-bottom: auto;
  color: var(--green);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.architecture-map article:last-child small { color: #7dd0bc; }

.architecture-map h3 {
  margin: 0 0 10px;
  font-family: var(--heading);
  font-size: 24px;
  letter-spacing: -0.015em;
}

.architecture-map p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 12px;
}

.architecture-map article:last-child p { color: rgba(255, 255, 255, 0.56); }

.connection {
  display: flex;
  align-items: center;
}

.connection span {
  flex: 1;
  height: 1px;
  background: var(--green);
}

.connection b {
  padding: 8px;
  color: var(--green-dark);
  font-size: 7px;
  letter-spacing: 0.09em;
  white-space: nowrap;
}

.closing-section {
  text-align: center;
}

.closing-symbol {
  width: 92px;
  height: 92px;
  margin: 0 auto 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.closing-symbol img {
  width: 48px;
}

.closing-section > p {
  margin: 0 0 26px;
  color: var(--green);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.closing-section h2 {
  font-size: clamp(50px, 6vw, 82px);
}

.closing-meta {
  justify-content: center;
  margin-top: 50px;
}

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

.footer-inner {
  min-height: 138px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.footer-brand img { filter: brightness(0) invert(1); }

.footer-inner p {
  color: rgba(255, 255, 255, 0.56);
  font-size: 12px;
}

.footer-inner small {
  justify-self: end;
  color: rgba(255, 255, 255, 0.4);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media (max-width: 1040px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 72px;
  }

  .hero-copy { max-width: 780px; }
  .hero-orbit { width: min(590px, 100%); margin: 0 auto; }
  .section-heading { grid-template-columns: 1fr; gap: 28px; }
  .loop-grid { grid-template-columns: repeat(2, 1fr); }
  .loop-grid article:nth-child(2) { border-right: 1px solid rgba(255, 255, 255, 0.2); }
  .loop-grid article:nth-child(n + 3) { border-top: 1px solid rgba(255, 255, 255, 0.2); }
  .carriers-section { grid-template-columns: 1fr; gap: 72px; }
  .carriers-intro { position: static; max-width: 720px; }
  .architecture-grid { grid-template-columns: 1fr; gap: 64px; }
}

@media (max-width: 760px) {
  .wrap { width: min(100% - 36px, 620px); }
  .site-header { min-height: 78px; }
  .header-end { gap: 12px; }
  .header-meta { display: none; }
  .language-switcher button { min-width: 38px; padding-inline: 8px; }
  .hero { min-height: auto; padding-block: 64px 72px; gap: 40px; }
  .hero h1 { font-size: clamp(44px, 12vw, 52px); }
  html[lang="zh-CN"] .hero h1 {
    font-size: 45px;
    line-height: 1.08;
  }
  .hero-lede { font-size: 16px; }
  .hero-orbit { min-height: 410px; transform: scale(0.83); margin-block: -34px; }
  .orbit-node {
    min-width: 154px;
    min-height: 68px;
    padding: 14px 16px;
  }
  .orbit-node b { font-size: 15px; }
  .orbit-node span { font-size: 12px; }
  .orbit-node small { font-size: 10px; }
  .signal-grid { grid-template-columns: 1fr; }
  .signal-grid article { min-height: 140px; border-right: 1px solid rgba(255, 255, 255, 0.13); border-bottom: 1px solid rgba(255, 255, 255, 0.13); }
  .product-section, .carriers-section, .closing-section { padding-block: 96px; }
  .section-heading h2, .carriers-intro h2, .architecture-copy h2 { font-size: 42px; }
  html[lang="zh-CN"] .section-heading h2,
  html[lang="zh-CN"] .carriers-intro h2,
  html[lang="zh-CN"] .architecture-copy h2 {
    font-size: 41px;
    line-height: 1.12;
  }
  .product-frame { border-radius: 10px; }
  .frame-bar { grid-template-columns: 1fr auto; }
  .frame-bar > span:nth-child(2) { display: none; }
  .product-frame > img { height: auto; aspect-ratio: 2517 / 1385; object-fit: contain; object-position: center; }
  .product-caption { flex-wrap: wrap; line-height: 1.6; }
  .loop-section { padding-block: 96px; }
  .loop-grid { grid-template-columns: 1fr; }
  .loop-grid article { min-height: 300px; border-right: 1px solid rgba(255, 255, 255, 0.2); border-top: 1px solid rgba(255, 255, 255, 0.2); }
  .loop-grid article:first-child { border-top: 0; }
  .carrier-stack article { grid-template-columns: 92px 1fr; gap: 20px; }
  .carrier-mark { width: 82px; height: 82px; transform: scale(0.78); }
  .architecture-section { padding-block: 96px; }
  .architecture-map { grid-template-columns: 1fr; }
  .architecture-map article { min-height: 180px; }
  .connection { min-height: 100px; flex-direction: column; }
  .connection span { width: 1px; height: auto; }
  .closing-section h2 { font-size: 46px; }
  html[lang="zh-CN"] .closing-section h2 {
    font-size: 43px;
    line-height: 1.12;
  }
  .closing-meta { flex-wrap: wrap; }
  .footer-inner { min-height: 180px; grid-template-columns: 1fr; justify-items: start; padding-block: 36px; }
  .footer-inner p { margin: 0; }
  .footer-inner small { justify-self: start; }
}

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

/* Editorial pass: quieter, more product-led, and less presentation-like. */
.eyebrow {
  margin-bottom: 18px;
  gap: 0;
  font-size: 16px;
  letter-spacing: 0.055em;
  text-transform: none;
}

.eyebrow > span {
  display: none;
}

.hero {
  min-height: 650px;
  grid-template-columns: minmax(0, 1.04fr) minmax(430px, 0.96fr);
  gap: 80px;
  padding-block: 78px 88px;
}

.hero-lede {
  margin-block: 28px 26px;
  max-width: 570px;
  font-size: 17px;
}

.hero-tags {
  gap: 20px;
}

.hero-tags span {
  padding: 0;
  border: 0;
  border-radius: 0;
  color: var(--ink-soft);
  background: transparent;
  font-size: 11px;
  letter-spacing: 0.025em;
  text-transform: none;
}

.hero-tags span::before {
  content: "✓";
  margin-right: 7px;
  color: var(--green);
  font-weight: 800;
}

.hero-orbit {
  min-height: auto;
  padding: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  background: #fff;
  isolation: auto;
}

.orbit-grid,
.orbit-ring {
  display: none;
}

.orbit-core {
  position: static;
  width: auto;
  height: auto;
  grid-column: 1 / -1;
  padding: 0 0 24px;
  flex-direction: row;
  justify-content: flex-start;
  gap: 10px;
  border: 0;
  border-radius: 0;
  color: var(--ink);
  background: transparent;
  box-shadow: none;
  transform: none;
}

.orbit-core img {
  width: 28px;
  filter: none;
}

.orbit-core span {
  font-family: var(--body);
  font-size: 15px;
  letter-spacing: -0.02em;
}

.orbit-core small {
  margin-left: auto;
  color: var(--ink-soft);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: none;
}

.orbit-node {
  position: static;
  min-width: 0;
  min-height: 126px;
  padding: 22px 18px;
  align-content: start;
  grid-template-columns: 26px 1fr;
  gap: 6px 10px;
  border: 0;
  border-top: 1px solid var(--line);
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.orbit-node:nth-of-type(even) {
  border-left: 1px solid var(--line);
}

.orbit-node b {
  color: var(--green);
  font-family: var(--body);
  font-size: 13px;
}

.orbit-node span {
  font-size: 13px;
  letter-spacing: 0.035em;
}

.orbit-node small {
  grid-column: 2;
  font-size: 12px;
}

.signal-strip {
  color: var(--ink);
  background: #fff;
  border-block: 1px solid var(--line);
}

.signal-grid article {
  min-height: 150px;
  padding: 36px 32px;
  border-left-color: var(--line);
}

.signal-grid article:last-child {
  border-right-color: var(--line);
}

.signal-grid p {
  color: var(--ink-soft);
}

.product-section,
.carriers-section,
.closing-section {
  padding-block: 104px;
}

.section-heading {
  margin-bottom: 44px;
}

.product-frame {
  border-radius: 8px;
  box-shadow: 0 18px 55px rgba(12, 28, 46, 0.1);
}

.loop-section {
  padding-block: 104px;
  color: var(--ink);
  background: #fff;
  border-block: 1px solid var(--line);
}

.light-heading .eyebrow,
.loop-section .eyebrow {
  color: var(--green-dark);
}

.light-heading > p {
  color: var(--ink-soft);
}

.loop-grid {
  gap: 14px;
  border: 0;
}

.loop-grid article,
.loop-grid article:last-child {
  min-height: 290px;
  padding: 26px;
  border: 1px solid var(--line);
  background: #f7f9f8;
}

.loop-top span {
  color: var(--green);
  font-family: var(--body);
}

.loop-top i {
  display: none;
}

.loop-grid h3 {
  margin: 50px 0 14px;
  font-size: 30px;
}

.loop-grid p {
  color: var(--ink-soft);
}

.loop-grid small {
  color: var(--green-dark);
  letter-spacing: 0.08em;
}

.carriers-section {
  gap: 80px;
}

.carrier-mark {
  width: 104px;
  height: 104px;
  border-radius: 10px;
  background: #f7f9f8;
}

.architecture-section {
  padding-block: 104px;
  background: #fff;
}

.architecture-map article {
  min-height: 210px;
  background: #fff;
}

.closing-symbol {
  width: auto;
  height: auto;
  margin-bottom: 32px;
  border: 0;
  border-radius: 0;
}

.closing-symbol img {
  width: 42px;
}

.closing-section > p {
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: none;
}

.closing-section h2 {
  font-size: clamp(48px, 5vw, 68px);
}

@media (max-width: 1040px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-orbit {
    width: min(700px, 100%);
    margin: 0;
  }

  .loop-grid article:nth-child(2),
  .loop-grid article:nth-child(n + 3) {
    border: 1px solid var(--line);
  }
}

@media (max-width: 760px) {
  .hero {
    padding-block: 56px 70px;
  }

  .hero-tags {
    display: grid;
    gap: 9px;
  }

  .hero-orbit {
    padding: 20px;
    transform: none;
    margin-block: 0;
  }

  .orbit-node {
    min-height: 108px;
    padding: 18px 10px;
  }

  .signal-grid article {
    min-height: 128px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .product-section,
  .carriers-section,
  .closing-section,
  .loop-section,
  .architecture-section {
    padding-block: 80px;
  }

  .loop-grid {
    gap: 10px;
  }

  .loop-grid article,
  .loop-grid article:first-child,
  .loop-grid article:nth-child(2),
  .loop-grid article:nth-child(n + 3) {
    min-height: 250px;
    border: 1px solid var(--line);
  }

  .carrier-mark {
    width: 78px;
    height: 78px;
    transform: none;
  }
}

/* Keep the evolution cycle as the homepage's single expressive visual. */
.hero-orbit {
  position: relative;
  min-height: 540px;
  padding: 0;
  display: block;
  border: 0;
  background: transparent;
  isolation: isolate;
}

.orbit-grid {
  display: block;
}

.orbit-ring {
  display: block;
}

.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 168px;
  height: 168px;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  color: white;
  background: var(--ink);
  box-shadow: 0 22px 60px rgba(12, 28, 46, 0.2);
  transform: translate(-50%, -50%);
}

.orbit-core img {
  width: 44px;
  filter: brightness(0) invert(1);
}

.orbit-core span {
  font-family: var(--display);
  font-size: 20px;
  letter-spacing: -0.04em;
}

.orbit-core small {
  margin-left: 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.orbit-node {
  position: absolute;
  min-width: 172px;
  min-height: 78px;
  padding: 18px 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-content: center;
  gap: 4px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 10px 26px rgba(12, 28, 46, 0.07);
}

.orbit-node:nth-of-type(even) {
  border-left: 1px solid var(--line);
}

.orbit-node b {
  grid-row: span 2;
  color: var(--coral);
  font-family: var(--body);
  font-size: 16px;
}

.orbit-node span {
  font-size: 14px;
  letter-spacing: 0.08em;
}

.orbit-node small {
  grid-column: auto;
  font-size: 12px;
}

@media (max-width: 1040px) {
  .hero-orbit {
    width: min(590px, 100%);
    margin: 0 auto;
  }
}

@media (max-width: 760px) {
  .hero-orbit {
    min-height: 410px;
    padding: 0;
    transform: scale(0.83);
    margin-block: -34px;
  }

  .orbit-node {
    min-width: 154px;
    min-height: 68px;
    padding: 14px 16px;
  }

  .orbit-node b { font-size: 15px; }
  .orbit-node span { font-size: 12px; }
  .orbit-node small { font-size: 10px; }
}

.carrier-stack article {
  min-height: 280px;
}

.parameter-mark {
  flex-direction: column;
  gap: 8px;
}

.parameter-mark span {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: var(--green);
}

.parameter-mark span:nth-child(1) { width: 58px; opacity: 0.42; }
.parameter-mark span:nth-child(2) { width: 76px; }
.parameter-mark span:nth-child(3) { width: 44px; background: var(--coral); }

@media (max-width: 760px) {
  .carrier-stack article {
    min-height: 0;
    align-items: start;
  }

  .carrier-stack h3 {
    font-size: 27px;
  }
}

/* Content labels stand on their own; decorative ordering is intentionally omitted. */
.orbit-node {
  grid-template-columns: 1fr;
  gap: 5px;
}

.orbit-node span,
.orbit-node small {
  grid-column: 1;
}

.signal-grid article {
  grid-template-columns: 1fr;
  gap: 0;
}

.loop-grid h3 {
  margin-top: 24px;
}

/* The evolution loop and the EvoLab mark are one visual system. */
.hero-orbit {
  min-height: 560px;
}

.orbit-grid,
.orbit-ring {
  display: none;
}

.orbit-symbol {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 410px;
  height: 410px;
  transform: translate(-50%, -50%);
}

.orbit-symbol::before,
.orbit-symbol::after {
  content: "";
  position: absolute;
  z-index: 1;
  border-radius: 50%;
}

.orbit-symbol::before {
  top: 57px;
  left: 39px;
  width: 12px;
  height: 12px;
  background: var(--green);
  box-shadow: 0 0 0 7px #fff;
}

.orbit-symbol::after {
  right: 38px;
  bottom: 74px;
  width: 10px;
  height: 10px;
  background: var(--coral);
  box-shadow: 0 0 0 7px #fff;
}

.orbit-symbol img {
  width: 100%;
  height: 100%;
  opacity: 0.92;
}

.orbit-core {
  top: 50%;
  left: 42%;
  width: auto;
  height: auto;
  min-width: 172px;
  padding: 18px 22px;
  gap: 5px;
  border: 0;
  border-radius: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: none;
}

.orbit-core span {
  font-family: var(--heading);
  font-size: 28px;
  letter-spacing: -0.035em;
}

.orbit-core small {
  color: var(--green-dark);
  font-size: 9px;
  letter-spacing: 0.11em;
}

.orbit-node {
  min-width: 178px;
  min-height: 82px;
  padding: 18px 20px 16px;
  border: 1px solid rgba(12, 28, 46, 0.18);
  box-shadow: 0 12px 28px rgba(12, 28, 46, 0.08);
}

.orbit-node::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 42px;
  height: 3px;
  background: var(--green);
}

.node-run { top: 34px; left: 20px; }
.node-capture { top: 94px; right: -18px; }
.node-evolve { right: 2px; bottom: 62px; }
.node-continue { bottom: 20px; left: 0; }

@media (max-width: 760px) {
  .hero-orbit {
    min-height: 430px;
  }

  .orbit-symbol {
    width: 350px;
    height: 350px;
  }

  .orbit-core {
    left: 40%;
    min-width: 142px;
    padding: 14px 16px;
  }

  .orbit-core span { font-size: 23px; }

  .orbit-node {
    min-width: 148px;
    min-height: 68px;
  }

  .node-run { top: 30px; left: -18px; }
  .node-capture { top: 88px; right: -28px; }
  .node-evolve { right: -22px; bottom: 54px; }
  .node-continue { bottom: 24px; left: -28px; }
}

/* Quiet motion: guide attention without turning the page into a demo reel. */
.motion-enabled .orbit-node {
  top: 50%;
  left: 50%;
  right: auto;
  bottom: auto;
  z-index: 3;
  transform: translate(
    calc(-50% + var(--orbit-x, 0px)),
    calc(-50% + var(--orbit-y, 0px))
  );
  scale: 1;
  will-change: transform;
  transition:
    scale 420ms cubic-bezier(0.2, 0.75, 0.2, 1),
    border-color 320ms ease,
    box-shadow 420ms ease,
    background-color 320ms ease;
}

.orbit-symbol,
.orbit-core {
  transition: transform 700ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.hero-tags span,
.product-frame,
.carrier-stack article,
.carrier-mark,
.architecture-map article,
.closing-symbol,
.brand {
  transition:
    transform 480ms cubic-bezier(0.2, 0.75, 0.2, 1),
    border-color 320ms ease,
    box-shadow 480ms ease,
    color 320ms ease,
    background-color 320ms ease;
}

.motion-enabled .reveal-on-scroll {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 800ms ease,
    transform 900ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.motion-enabled .reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .hero-orbit:hover .orbit-symbol {
    transform: translate(-50%, -50%) scale(1.025);
  }

  .hero-orbit:hover .orbit-core {
    transform: translate(-50%, -50%) scale(1.035);
  }

  .motion-enabled .orbit-node:hover {
    z-index: 8;
    scale: 1.09;
    border-color: rgba(11, 122, 104, 0.45);
    background: #fff;
    box-shadow: 0 24px 50px rgba(12, 28, 46, 0.16);
  }

  .motion-enabled .orbit-node:hover::before {
    width: 72px;
  }

  .orbit-node::before {
    transition: width 420ms cubic-bezier(0.2, 0.75, 0.2, 1);
  }

  .hero-tags span:hover {
    color: var(--green-dark);
    transform: translateY(-2px);
  }

  .product-frame:hover {
    transform: translateY(-7px) scale(1.006);
    border-color: rgba(11, 122, 104, 0.42);
    box-shadow: 0 30px 75px rgba(12, 28, 46, 0.16);
  }

  .carrier-stack article:hover {
    transform: translateX(7px);
    background: linear-gradient(90deg, rgba(11, 122, 104, 0.045), transparent 72%);
  }

  .carrier-stack article:hover .carrier-mark {
    transform: translateY(-4px) scale(1.045);
    border-color: rgba(11, 122, 104, 0.38);
    box-shadow: 0 14px 32px rgba(12, 28, 46, 0.09);
  }

  .carrier-stack article:hover h3 {
    color: var(--green-dark);
  }

  .architecture-map article:hover {
    transform: translateY(-6px);
    border-color: rgba(11, 122, 104, 0.45);
    box-shadow: 0 20px 45px rgba(12, 28, 46, 0.11);
  }

  .closing-symbol:hover {
    transform: translateY(-4px) rotate(4deg) scale(1.05);
  }

  .brand:hover {
    transform: translateY(-2px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .motion-enabled .reveal-on-scroll,
  .motion-enabled .reveal-on-scroll.is-visible {
    opacity: 1;
    transform: none;
  }

  .orbit-symbol,
  .orbit-core,
  .orbit-node,
  .product-frame,
  .carrier-stack article,
  .carrier-mark,
  .architecture-map article,
  .closing-symbol,
  .brand {
    transition: none;
  }
}