.nodes-hero {
  border-bottom: 1px solid var(--color-border);
}

.nodes-hero .hero-grid {
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
}

.nodes-hero .hero-title {
  max-width: 10ch;
}

.nodes-hero-note {
  max-width: 58ch;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 13px;
}

.route-symbol {
  display: inline-flex;
  width: 27px;
  height: 20px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 4px;
  font-size: 17px;
  line-height: 1;
}

.region-overview {
  padding-top: clamp(54px, 7vw, 82px);
  padding-bottom: clamp(54px, 7vw, 82px);
}

.region-overview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: center;
  gap: clamp(34px, 7vw, 84px);
}

.region-route-art {
  display: flex;
  min-height: 210px;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--gradient-panel);
  box-shadow: var(--shadow-raised);
}

.region-route-art .route-decoration {
  color: var(--color-accent);
}

.region-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.region-ribbon span {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 7px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel-raised);
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 700;
}

.nodes-section-heading {
  max-width: 820px;
  margin-bottom: 38px;
}

.line-label {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 11px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel-raised);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.line-label-premium {
  border-color: var(--color-accent-dark);
  background: var(--color-client-pill);
  color: var(--color-client-ink);
}

.line-label-direct {
  border-color: var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

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

.route-type-item {
  display: grid;
  grid-template-columns: minmax(130px, 0.34fr) minmax(0, 1.66fr);
  overflow: clip;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--gradient-panel);
  box-shadow: var(--shadow-raised);
}

.route-type-marker {
  display: flex;
  min-height: 100%;
  align-items: center;
  justify-content: center;
  padding: 30px 20px;
  border-right: 1px solid var(--color-border);
  background: var(--color-panel-raised);
}

.route-type-marker span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: clamp(18px, 3vw, 28px);
  font-weight: 800;
  letter-spacing: 0.08em;
  writing-mode: vertical-rl;
}

.route-type-content {
  padding: clamp(26px, 4vw, 44px);
}

.route-type-content h3 {
  margin-bottom: 18px;
}

.route-type-content > p {
  color: var(--color-text-muted);
}

.route-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 0;
  padding-top: 10px;
}

.route-facts div {
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.route-facts dt {
  margin-bottom: 6px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.route-facts dd {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 13px;
  line-height: 1.65;
}

.usage-guide {
  border-top: 1px solid var(--color-border);
}

.usage-item {
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(0, 1.58fr);
  gap: clamp(26px, 6vw, 76px);
  padding-top: clamp(32px, 5vw, 54px);
  padding-bottom: clamp(32px, 5vw, 54px);
  border-bottom: 1px solid var(--color-border);
}

.usage-heading {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 16px;
}

.usage-heading h3 {
  margin-bottom: 0;
}

.usage-symbol {
  display: inline-flex;
  min-width: 74px;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-sm);
  background: var(--color-client-pill);
  color: var(--color-client-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.usage-item > div:last-child {
  color: var(--color-text-muted);
}

.usage-item > div:last-child > :last-child {
  margin-bottom: 0;
}

.switching-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: clamp(40px, 8vw, 100px);
}

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

.switching-steps li {
  position: relative;
  padding: 0 0 32px 62px;
  counter-increment: route-step;
}

.switching-steps li:not(:last-child)::after {
  position: absolute;
  top: 42px;
  bottom: 5px;
  left: 20px;
  width: 1px;
  background: var(--color-border);
  content: '';
}

.switching-steps li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent-dark);
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-ink);
  content: counter(route-step);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
}

.switching-steps h3 {
  margin-bottom: 8px;
  font-size: 21px;
}

.switching-steps p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.nodes-final-actions {
  margin-top: 36px;
  padding-top: 30px;
  border-top: 1px solid var(--color-border);
}

@media (max-width: 1080px) {
  .nodes-hero .hero-grid {
    grid-template-columns: 1fr;
  }

  .nodes-hero .hero-title {
    max-width: 10ch;
  }
}

@media (max-width: 880px) {
  .region-overview-grid,
  .switching-layout {
    grid-template-columns: 1fr;
  }

  .region-route-art {
    min-height: 170px;
  }

  .route-type-item {
    grid-template-columns: 1fr;
  }

  .route-type-marker {
    min-height: auto;
    justify-content: flex-start;
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .route-type-marker span {
    writing-mode: horizontal-tb;
  }

  .route-facts {
    grid-template-columns: 1fr;
  }

  .usage-item {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .usage-heading {
    align-items: center;
    flex-direction: row;
  }
}

@media (max-width: 640px) {
  .nodes-hero .hero-title {
    max-width: none;
  }

  .region-route-art {
    display: none;
  }

  .region-ribbon {
    gap: 8px;
  }

  .region-ribbon span {
    min-height: 34px;
    padding-inline: 13px;
    font-size: 13px;
  }

  .route-type-marker,
  .route-type-content {
    padding: 22px;
  }

  .route-type-marker span {
    font-size: 17px;
  }

  .usage-item {
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .switching-steps li {
    padding-left: 54px;
  }

  .switching-steps li::before {
    width: 38px;
    height: 38px;
  }

  .switching-steps li:not(:last-child)::after {
    top: 38px;
    left: 18px;
  }
}

@media (max-width: 420px) {
  .usage-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 11px;
  }

  .nodes-final-actions .button {
    width: 100%;
  }
}