.nodes-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(var(--color-grid) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-grid) 1px, var(--color-transparent) 1px),
    radial-gradient(ellipse at 50% 78%, var(--color-accent-mist), var(--color-transparent) 66%);
  background-size: 58px 58px, 58px 58px, auto;
  padding-top: 86px;
  padding-bottom: 60px;
}

.nodes-hero-decor {
  position: absolute;
  top: 18%;
  left: 50%;
  width: min(880px, 86vw);
  height: 440px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  opacity: 0.38;
  transform: translateX(-50%);
}

.nodes-hero-decor::before,
.nodes-hero-decor::after {
  position: absolute;
  top: 50%;
  width: 20%;
  height: 1px;
  background: var(--color-border);
  content: "";
}

.nodes-hero-decor::before {
  left: -8%;
}

.nodes-hero-decor::after {
  right: -8%;
}

.nodes-hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.nodes-hero .badge {
  margin-bottom: 20px;
}

.nodes-hero h1 {
  max-width: 880px;
  margin-inline: auto;
}

.nodes-hero-lead {
  max-width: 760px;
  margin: 0 auto 24px;
  font-size: 18px;
}

.nodes-fact-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 26px;
}

.nodes-hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
}

.route-schematic {
  display: grid;
  grid-template-columns: minmax(92px, 0.35fr) minmax(240px, 1fr) minmax(92px, 0.35fr);
  align-items: center;
  max-width: 820px;
  margin: 58px auto 0;
}

.route-bank {
  display: grid;
  min-height: 74px;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--color-edge-highlight);
}

.route-bank span {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.route-channel {
  position: relative;
  display: flex;
  height: 34px;
  align-items: center;
  justify-content: space-around;
  border-top: 1px solid var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
  background: linear-gradient(90deg, var(--color-accent-water-deep), var(--color-accent-water-soft), var(--color-accent-water-deep));
}

.route-node {
  position: relative;
  z-index: 2;
  width: 11px;
  height: 11px;
  flex: none;
  border: 2px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 18px var(--color-accent-glow);
}

.route-flow {
  position: absolute;
  top: 50%;
  right: 8%;
  left: 8%;
  height: 1px;
  background: var(--color-line-strong);
  opacity: 0.46;
}

.nodes-flow {
  padding-top: 46px;
  padding-bottom: 24px;
}

.nodes-flow > .toc-tabs {
  margin-bottom: 24px;
}

.nodes-section {
  padding-top: 80px;
  padding-bottom: 80px;
}

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

.nodes-table-note {
  margin-bottom: 22px;
}

.nodes-after-table {
  max-width: 880px;
  margin: 24px 0 0;
}

.route-type-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.route-type-card {
  display: flex;
  flex-direction: column;
}

.route-type-card:nth-child(2) {
  transform: translateY(24px);
}

.route-type-code {
  margin-bottom: 22px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.route-type-card h3 {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.route-type-card p:last-child {
  margin-bottom: 0;
}

.route-principle {
  display: grid;
  grid-template-columns: minmax(220px, 0.6fr) minmax(0, 1fr);
  gap: 34px;
  margin-top: 56px;
  padding: 24px 28px;
}

.route-principle div {
  display: grid;
  gap: 7px;
}

.route-principle span {
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.route-principle p {
  margin-bottom: 0;
}

.selection-board {
  border-top: 1px solid var(--color-border);
}

.selection-row {
  display: grid;
  grid-template-columns: minmax(190px, 0.42fr) minmax(0, 1fr);
  gap: 42px;
  border-bottom: 1px solid var(--color-border);
  padding-top: 30px;
  padding-bottom: 30px;
}

.selection-label {
  border-left: 2px solid var(--color-border);
  padding-left: 18px;
}

.selection-row:hover .selection-label {
  border-left-color: var(--color-accent);
}

.selection-label .mono {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.selection-label h3 {
  margin-bottom: 0;
  font-size: 22px;
}

.selection-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.selection-copy p {
  margin-bottom: 0;
}

.switch-list {
  display: grid;
  margin: 0 0 30px;
  padding: 0;
  counter-reset: switch-step;
  list-style: none;
}

.switch-list > li {
  position: relative;
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  border-bottom: 1px solid var(--color-border);
  padding-top: 24px;
  padding-bottom: 24px;
  counter-increment: switch-step;
}

.switch-list > li::before {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-accent);
  content: counter(switch-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
}

.switch-copy h3 {
  margin-bottom: 7px;
  font-size: 21px;
}

.switch-copy p {
  max-width: 860px;
  margin-bottom: 0;
}

.coverage-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.62fr) minmax(0, 1.38fr);
  gap: 48px;
  align-items: start;
}

.coverage-facts {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  align-items: center;
  padding: 34px 24px;
}

.coverage-divider {
  width: 1px;
  height: 76px;
  background: var(--color-border);
}

.coverage-fact {
  display: grid;
  justify-items: center;
  gap: 7px;
  text-align: center;
}

.coverage-fact strong {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 36px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.coverage-fact span {
  color: var(--color-text-muted);
  font-size: 13px;
}

.coverage-copy h3 {
  margin-bottom: 16px;
}

.region-badge-wall {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 42px;
}

.region-badge-wall span {
  display: grid;
  min-height: 48px;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--color-edge-highlight);
  color: var(--color-text-muted);
  font-size: 13px;
}

.region-badge-wall span:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.nodes-promo {
  margin-top: 64px;
}

@media (max-width: 980px) {
  .route-type-grid {
    grid-template-columns: 1fr;
  }

  .route-type-card:nth-child(2) {
    transform: none;
  }

  .selection-copy {
    grid-template-columns: 1fr;
    gap: 8px;
  }

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

  .region-badge-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .nodes-hero {
    padding-top: 66px;
    padding-bottom: 46px;
  }

  .nodes-hero-decor {
    display: none;
  }

  .nodes-hero-lead {
    font-size: 16px;
  }

  .nodes-hero-actions {
    align-items: center;
    flex-direction: column;
  }

  .route-schematic {
    grid-template-columns: 72px minmax(140px, 1fr) 72px;
    margin-top: 44px;
  }

  .route-bank {
    min-height: 62px;
  }

  .route-bank span {
    font-size: 9px;
  }

  .nodes-flow {
    padding-top: 32px;
  }

  .nodes-section {
    padding-top: 66px;
    padding-bottom: 66px;
  }

  .route-principle {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .selection-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .coverage-layout {
    gap: 30px;
  }
}

@media (max-width: 640px) {
  .nodes-hero-actions {
    width: 100%;
  }

  .nodes-fact-row {
    align-items: stretch;
    flex-direction: column;
  }

  .nodes-fact-row .chip {
    justify-content: center;
  }

  .route-schematic {
    grid-template-columns: 58px minmax(120px, 1fr) 58px;
  }

  .route-bank span {
    overflow: hidden;
    max-width: 46px;
    text-overflow: ellipsis;
  }

  .route-channel {
    height: 28px;
  }

  .route-node {
    width: 9px;
    height: 9px;
  }

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

  .route-principle {
    padding: 21px;
  }

  .switch-list > li {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .switch-list > li::before {
    width: 38px;
    height: 38px;
  }

  .coverage-facts {
    padding: 26px 16px;
  }

  .coverage-fact strong {
    font-size: 29px;
  }

  .region-badge-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 390px) {
  .route-schematic {
    grid-template-columns: 48px minmax(110px, 1fr) 48px;
  }

  .route-bank span {
    display: none;
  }

  .coverage-facts {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .coverage-divider {
    width: 100%;
    height: 1px;
  }
}