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

.nodes-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: 52px;
  min-height: 620px;
  padding-top: 70px;
  padding-bottom: 70px;
}

.nodes-hero__copy {
  max-width: 660px;
}

.nodes-hero__copy h1 {
  margin-top: 18px;
}

.nodes-hero__copy .lead {
  margin-bottom: 26px;
}

.nodes-hero__copy .button-row {
  margin-top: 26px;
}

.nodes-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.nodes-hero__facts span {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  background: var(--color-page);
  color: var(--color-text-soft);
  font-size: 13px;
}

.route-diagram {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-panel-alt);
  box-shadow: var(--shadow-card);
}

.route-diagram__bank {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 18%;
  background: var(--color-panel);
}

.route-diagram__bank--start {
  left: 0;
  border-right: 1px solid var(--color-line);
}

.route-diagram__bank--end {
  right: 0;
  border-left: 1px solid var(--color-line);
}

.route-diagram__label {
  position: absolute;
  bottom: 22px;
  left: 50%;
  color: var(--color-text-soft);
  font-family: var(--font-code);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  transform: translateX(-50%);
}

.route-diagram__water {
  position: absolute;
  inset: 0 18%;
  background: linear-gradient(135deg, var(--color-water-a), var(--color-water-b));
}

.route-diagram__water::before,
.route-diagram__water::after {
  position: absolute;
  left: 8%;
  width: 84%;
  height: 84px;
  border: 1px solid var(--color-panel);
  border-radius: var(--radius-pill);
  content: '';
  opacity: 0.45;
}

.route-diagram__water::before {
  top: 60px;
  transform: rotate(-8deg);
}

.route-diagram__water::after {
  bottom: 58px;
  transform: rotate(9deg);
}

.route-diagram__line {
  position: absolute;
  top: 50%;
  left: 4%;
  width: 92%;
  border-top: 3px dashed var(--color-warning);
  transform: rotate(-22deg);
  transform-origin: center;
}

.route-diagram__stone {
  position: absolute;
  z-index: 2;
  display: grid;
  width: 76px;
  height: 58px;
  place-items: center;
  border: 2px solid var(--color-brand);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  font-family: var(--font-code);
  font-size: 14px;
  font-weight: 800;
}

.route-diagram__stone--one {
  bottom: 42px;
  left: 3%;
}

.route-diagram__stone--two {
  bottom: 100px;
  left: 23%;
}

.route-diagram__stone--three {
  top: 44%;
  left: 44%;
  border-color: var(--color-warning);
  color: var(--color-warning);
}

.route-diagram__stone--four {
  top: 92px;
  right: 20%;
}

.route-diagram__stone--five {
  top: 36px;
  right: 2%;
}

.nodes-table {
  margin-top: 24px;
}

.nodes-table__note {
  max-width: 920px;
  margin-top: 18px;
  margin-bottom: 0;
  color: var(--color-text-soft);
  font-size: 14px;
}

.route-kind {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  padding: 3px 9px;
  background: var(--color-panel);
  color: var(--color-text-soft);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.route-kind--priority {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

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

.type-card {
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 26px;
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.type-card__code,
.use-card__mark,
.region-badge__code,
.switch-step__code {
  display: inline-flex;
  margin-bottom: 18px;
  border: 1px solid var(--color-brand);
  border-radius: var(--radius-xs);
  padding: 4px 8px;
  color: var(--color-brand);
  font-family: var(--font-code);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.type-card p,
.use-card p,
.region-badge p,
.coverage-note p,
.switch-step p {
  color: var(--color-text-soft);
}

.type-card p:last-child,
.use-card p:last-child,
.region-badge p:last-child,
.coverage-note p:last-child,
.switch-step p:last-child {
  margin-bottom: 0;
}

.types-callout {
  margin-top: 30px;
}

.use-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
}

.use-card {
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 24px;
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.use-card:nth-child(1),
.use-card:nth-child(2) {
  grid-column: span 3;
}

.use-card:nth-child(3),
.use-card:nth-child(4),
.use-card:nth-child(5) {
  grid-column: span 2;
}

.selection-procedure {
  margin-top: 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 28px;
  background: var(--color-panel-alt);
}

.selection-procedure h3 {
  margin-bottom: 18px;
}

.selection-procedure ol {
  display: grid;
  gap: 12px;
  margin-bottom: 0;
  padding-left: 1.4rem;
}

.selection-procedure li {
  color: var(--color-text-soft);
}

.selection-procedure strong {
  color: var(--color-text);
}

.region-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.region-badge {
  position: relative;
  min-width: 0;
  border: 1px solid var(--color-line);
  border-top: 4px solid var(--color-brand);
  border-radius: var(--radius-md);
  padding: 24px;
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.coverage-notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.coverage-note {
  min-width: 0;
  border-left: 3px solid var(--color-warning);
  padding: 8px 0 8px 20px;
}

.coverage-note h3 {
  font-size: 20px;
}

.switching-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1.3fr);
  gap: 48px;
}

.switching-layout .section-head {
  margin-bottom: 0;
}

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

.switch-step {
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 22px;
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.switching-layout .callout {
  grid-column: 2;
}

@media (max-width: 1050px) {
  .nodes-hero__inner {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .nodes-hero__copy {
    max-width: 760px;
  }

  .route-diagram {
    width: 100%;
  }

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

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

  .switching-layout .callout {
    grid-column: auto;
  }
}

@media (max-width: 768px) {
  .nodes-hero__inner {
    gap: 34px;
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .route-diagram {
    min-height: 320px;
  }

  .route-diagram__stone {
    width: 62px;
    height: 50px;
    font-size: 12px;
  }

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

  .use-card:nth-child(1),
  .use-card:nth-child(2),
  .use-card:nth-child(3),
  .use-card:nth-child(4),
  .use-card:nth-child(5) {
    grid-column: auto;
  }

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

@media (max-width: 640px) {
  .nodes-hero__facts {
    display: grid;
    grid-template-columns: 1fr;
  }

  .nodes-hero__facts span {
    justify-content: center;
  }

  .route-diagram {
    min-height: 270px;
  }

  .route-diagram__bank {
    width: 14%;
  }

  .route-diagram__water {
    inset-right: 14%;
    inset-left: 14%;
  }

  .route-diagram__label {
    display: none;
  }

  .route-diagram__stone {
    width: 52px;
    height: 44px;
    font-size: 11px;
  }

  .route-diagram__stone--one {
    bottom: 28px;
    left: 1%;
  }

  .route-diagram__stone--two {
    bottom: 78px;
    left: 21%;
  }

  .route-diagram__stone--three {
    left: 42%;
  }

  .route-diagram__stone--four {
    top: 65px;
    right: 18%;
  }

  .route-diagram__stone--five {
    top: 22px;
    right: 0;
  }

  .type-grid,
  .region-wall,
  .switching-grid {
    grid-template-columns: 1fr;
  }

  .type-card,
  .use-card,
  .region-badge,
  .selection-procedure,
  .switch-step {
    padding: 20px;
  }
}