.nodes-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.nodes-hero::before {
  position: absolute;
  top: 8%;
  right: -10%;
  width: 48%;
  height: 84%;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, var(--color-accent-glow-soft), transparent 68%);
  content: "";
  opacity: .7;
  pointer-events: none;
}

.nodes-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 620px;
  grid-template-columns: minmax(0, .82fr) minmax(520px, 1.18fr);
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}

.nodes-hero-copy {
  max-width: 600px;
}

.nodes-hero-copy h1 {
  max-width: 590px;
  margin-top: 22px;
}

.nodes-hero-lead {
  max-width: 570px;
  margin-bottom: 28px;
  font-size: 17px;
  line-height: 1.82;
}

.nodes-fact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 24px;
}

.route-atlas {
  position: relative;
  min-height: 470px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.route-atlas::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 52px 52px;
  content: "";
  opacity: .16;
  pointer-events: none;
}

.route-atlas::after {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='noise'><feTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='2'/></filter><rect width='120' height='120' filter='url(%23noise)' opacity='.05'/></svg>");
  content: "";
  pointer-events: none;
}

.route-atlas-head {
  position: absolute;
  top: 18px;
  right: 22px;
  left: 22px;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
}

.route-atlas-lines {
  position: absolute;
  inset: 28px 0 22px;
  z-index: 1;
  width: 100%;
  height: calc(100% - 50px);
}

.atlas-path {
  fill: none;
  stroke: var(--color-arc);
  stroke-width: 2;
}

.atlas-path-accent {
  fill: none;
  stroke: var(--color-accent-strong);
  stroke-dasharray: 8 14;
  stroke-width: 2;
  opacity: .55;
}

.atlas-terminal {
  fill: var(--color-panel-raised);
  stroke: var(--color-accent-strong);
  stroke-width: 2;
}

.atlas-core-ring {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.5;
  opacity: .45;
}

.atlas-core {
  fill: var(--color-accent);
  filter: drop-shadow(0 0 9px var(--color-accent-glow));
}

.atlas-label {
  position: absolute;
  z-index: 4;
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-panel-raised);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 700;
}

.atlas-label b {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
}

.atlas-hk {
  top: 88px;
  left: 26px;
}

.atlas-tokyo {
  top: 98px;
  right: 24px;
}

.atlas-lax {
  right: 26px;
  bottom: 100px;
}

.atlas-london {
  bottom: 88px;
  left: 28px;
}

.atlas-region-row {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  z-index: 4;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.atlas-region-row span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 4px 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.nodes-document {
  position: relative;
}

.nodes-section {
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--color-border);
}

.nodes-section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.nodes-section .section-heading {
  max-width: 820px;
}

.nodes-section .section-heading p {
  font-size: 17px;
  line-height: 1.82;
}

.route-type-mark,
.support-mark {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
}

.route-type-mark {
  border: 1px solid var(--color-border);
  background: var(--color-panel-raised);
  color: var(--color-text);
}

.support-mark {
  border: 1px solid var(--color-accent-strong);
  color: var(--color-success);
}

.route-explain-list {
  display: grid;
  gap: 22px;
}

.route-explain {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: clamp(24px, 5vw, 68px);
  padding: clamp(26px, 4vw, 46px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.route-explain:nth-child(even) {
  background: var(--color-panel-raised);
}

.route-explain-index {
  align-self: start;
  padding-top: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: .04em;
}

.route-explain p {
  max-width: 860px;
  font-size: 16px;
  line-height: 1.82;
}

.route-summary {
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.route-summary li {
  position: relative;
  margin: 0;
  padding-left: 23px;
  color: var(--color-text-muted);
}

.route-summary li::before {
  position: absolute;
  top: .72em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 9px var(--color-accent-glow-soft);
  content: "";
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.use-case-card {
  position: relative;
  min-height: 100%;
  padding: clamp(24px, 3vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.use-case-card:nth-child(3n) {
  background: var(--color-panel-raised);
}

.use-case-card:last-child {
  grid-column: 1 / -1;
}

.use-case-card h3 {
  margin-top: 18px;
}

.use-case-card p {
  margin-bottom: 0;
  line-height: 1.82;
}

.use-case-tag {
  display: inline-flex;
  min-height: 27px;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--color-accent-strong);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
}

.check-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

.check-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: route-check;
}

.check-steps li {
  position: relative;
  padding: 0 0 36px 64px;
  counter-increment: route-check;
}

.check-steps li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--color-accent-strong);
  border-radius: 50%;
  background: var(--color-panel);
  color: var(--color-accent);
  content: counter(route-check);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.check-steps li::after {
  position: absolute;
  top: 47px;
  bottom: 8px;
  left: 20px;
  width: 1px;
  background: var(--color-border);
  content: "";
}

.check-steps li:last-child::after {
  display: none;
}

.check-steps h3 {
  font-size: 21px;
}

.check-steps p {
  margin-bottom: 0;
  line-height: 1.82;
}

.selection-note {
  position: sticky;
  top: calc(var(--header-height) + 28px);
}

.selection-note h3 {
  font-size: 25px;
}

.selection-facts {
  display: grid;
  gap: 0;
  margin: 26px 0 0;
}

.selection-facts div {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--color-border);
}

.selection-facts dt {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
}

.selection-facts dd {
  margin: 0;
  color: var(--color-text-muted);
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.scope-card {
  padding: clamp(24px, 3vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.scope-card:nth-child(2),
.scope-card:nth-child(3) {
  background: var(--color-panel-raised);
}

.scope-label {
  display: block;
  margin-bottom: 22px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
}

.scope-card strong {
  display: block;
  margin-bottom: 13px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.25;
}

.scope-card p {
  margin-bottom: 0;
  line-height: 1.75;
}

@media (max-width: 1120px) {
  .nodes-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .nodes-hero-copy {
    max-width: 760px;
  }

  .route-atlas {
    width: 100%;
    min-height: 440px;
  }

  .check-layout {
    grid-template-columns: 1fr;
  }

  .selection-note {
    position: static;
  }
}

@media (max-width: 768px) {
  .nodes-hero::before {
    top: 0;
    right: -28%;
    width: 90%;
    height: 58%;
  }

  .nodes-hero-grid {
    gap: 34px;
    padding-top: 42px;
    padding-bottom: 42px;
  }

  .nodes-hero-lead,
  .nodes-section .section-heading p {
    font-size: 16px;
  }

  .route-atlas {
    display: none;
  }

  .nodes-section {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .route-explain {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .route-explain-index {
    font-size: 18px;
  }

  .use-case-grid,
  .scope-grid {
    grid-template-columns: 1fr;
  }

  .use-case-card:last-child {
    grid-column: auto;
  }
}

@media (max-width: 520px) {
  .nodes-fact-row {
    align-items: stretch;
    flex-direction: column;
  }

  .nodes-fact-row .fact-chip {
    width: fit-content;
  }

  .check-steps li {
    padding-left: 52px;
  }

  .check-steps li::before {
    width: 34px;
    height: 34px;
  }

  .check-steps li::after {
    top: 41px;
    left: 17px;
  }

  .selection-facts div {
    grid-template-columns: 1fr;
    gap: 5px;
  }
}