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

.nodes-hero__layout {
  display: grid;
  min-height: calc(100svh - var(--header-height));
  grid-template-columns: minmax(0, 0.92fr) minmax(480px, 1.08fr);
  gap: clamp(48px, 7vw, 96px);
  align-items: center;
  padding-top: 64px;
  padding-bottom: 64px;
}

.nodes-hero__copy {
  min-width: 0;
}

.nodes-hero__copy h1 {
  margin-top: 22px;
}

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

.nodes-hero__copy .lead strong {
  color: var(--color-ink);
  font-weight: 650;
}

.nodes-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
  margin-bottom: 24px;
}

.nodes-diagram {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-canvas);
}

.nodes-diagram__head {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-inline: 18px;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-ink-muted);
  background: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.nodes-diagram__figure {
  width: 100%;
  height: auto;
  color: var(--color-ink-muted);
}

.nodes-diagram__ring {
  fill: none;
  stroke: var(--color-line);
  stroke-width: 1.5;
}

.nodes-diagram__ring--outer {
  stroke: var(--color-ink-muted);
  stroke-dasharray: 4 7;
}

.nodes-diagram__ring--inner {
  stroke: var(--color-ink);
}

.nodes-diagram__core,
.nodes-diagram__point {
  fill: var(--color-signal);
}

.nodes-diagram__route,
.nodes-diagram__annotation {
  fill: none;
  stroke: var(--color-ink-muted);
  stroke-width: 1;
}

.nodes-diagram__annotation {
  stroke: var(--color-line);
}

.nodes-diagram__label,
.nodes-diagram__note {
  fill: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.nodes-diagram__label--end {
  text-anchor: end;
}

.nodes-diagram__note {
  fill: var(--color-ink-muted);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.nodes-diagram__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding: 16px 18px;
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-muted);
  background: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 10px;
}

.nodes-diagram__legend span {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 7px;
}

.nodes-diagram__legend i {
  display: inline-block;
  flex-shrink: 0;
}

.nodes-diagram__legend-core,
.nodes-diagram__legend-point {
  width: 7px;
  height: 7px;
  background: var(--color-signal);
}

.nodes-diagram__legend-point {
  border-radius: var(--radius-pill);
}

.nodes-diagram__legend-line {
  width: 18px;
  height: 1px;
  background: var(--color-ink-muted);
}

.nodes-fact-strip {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.nodes-fact-strip__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 0.7fr) minmax(0, 1.6fr);
}

.nodes-fact-strip__inner > div {
  display: grid;
  min-width: 0;
  gap: 5px;
  padding: 24px 28px;
  border-right: 1px solid var(--color-line);
}

.nodes-fact-strip__inner > div:first-child {
  padding-left: 0;
}

.nodes-fact-strip__inner > div:last-child {
  border-right: 0;
}

.nodes-fact-strip__key {
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.nodes-fact-strip strong {
  overflow-wrap: anywhere;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 650;
}

.nodes-section-head {
  display: grid;
  max-width: 850px;
  gap: 18px;
  margin-bottom: 48px;
}

.nodes-section-head > p:last-child {
  color: var(--color-ink-muted);
  font-size: 16px;
  line-height: 1.85;
}

.nodes-table-note {
  margin-top: 28px;
}

.nodes-types {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.nodes-type-list {
  border-top: 1px solid var(--color-line);
}

.nodes-type {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  border-bottom: 1px solid var(--color-line);
}

.nodes-type__mark {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 32px;
  padding: 42px 42px 42px 0;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.nodes-type__mark svg {
  width: 88px;
  height: 88px;
  color: var(--color-ink);
  stroke-width: 1.25;
}

.nodes-type__copy {
  display: grid;
  gap: 15px;
  padding: 42px 0 42px 54px;
  border-left: 1px solid var(--color-line);
}

.nodes-type__copy h3 {
  margin-bottom: 8px;
}

.nodes-type__copy p {
  max-width: 78ch;
  color: var(--color-ink-muted);
  line-height: 1.9;
}

.nodes-use-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.nodes-use {
  display: grid;
  min-width: 0;
  align-content: start;
  grid-column: span 2;
  gap: 16px;
  padding: 30px;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

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

.nodes-use__code {
  color: var(--color-signal);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.nodes-use h3 {
  font-size: 28px;
}

.nodes-use p {
  color: var(--color-ink-muted);
  font-size: 14px;
  line-height: 1.85;
}

.nodes-method {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel-strong);
}

.nodes-method__layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(48px, 8vw, 112px);
}

.nodes-method__intro {
  align-self: start;
}

.nodes-method__intro h2 {
  margin-top: 18px;
}

.nodes-method__intro > p:last-child {
  margin-top: 22px;
  color: var(--color-ink-muted);
  line-height: 1.85;
}

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

.nodes-method__steps article {
  position: relative;
  display: grid;
  grid-template-columns: 140px minmax(180px, 0.72fr) minmax(0, 1.28fr);
  gap: 26px;
  align-items: start;
  padding-top: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-line);
}

.nodes-method__steps article::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 44px;
  height: 2px;
  content: "";
  background: var(--color-signal);
}

.nodes-method__steps span {
  color: var(--color-signal);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nodes-method__steps h3 {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 650;
}

.nodes-method__steps p {
  color: var(--color-ink-muted);
  font-size: 14px;
  line-height: 1.8;
}

.nodes-closing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 42px;
  align-items: center;
  margin-top: 72px;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-medium);
  padding: clamp(30px, 5vw, 58px);
  color: var(--color-canvas);
  background: var(--color-ink);
}

.nodes-closing__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.nodes-closing h2 {
  margin-top: 12px;
}

.nodes-closing p {
  max-width: 62ch;
  margin-top: 14px;
  color: var(--color-line);
}

.nodes-closing__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.nodes-closing .btn-sub {
  color: var(--color-canvas);
  border-color: var(--color-ink-muted);
  background: var(--color-ink);
}

.nodes-closing .btn-sub:hover {
  border-color: var(--color-canvas);
}

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

  .nodes-diagram {
    width: 100%;
    max-width: 680px;
    margin-inline: auto;
  }

  .nodes-method__layout {
    grid-template-columns: 1fr;
  }

  .nodes-use {
    grid-column: span 3;
  }

  .nodes-use:nth-child(5) {
    grid-column: 2 / span 4;
  }
}

@media (max-width: 820px) {
  .nodes-fact-strip__inner {
    grid-template-columns: 1fr;
  }

  .nodes-fact-strip__inner > div,
  .nodes-fact-strip__inner > div:first-child {
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .nodes-fact-strip__inner > div:last-child {
    border-bottom: 0;
  }

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

  .nodes-type__mark {
    grid-template-columns: auto auto;
    align-items: center;
    justify-content: space-between;
    padding: 30px 0 20px;
  }

  .nodes-type__mark svg {
    width: 68px;
    height: 68px;
  }

  .nodes-type__copy {
    padding: 0 0 34px;
    border-left: 0;
  }

  .nodes-method__steps article {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .nodes-closing {
    grid-template-columns: 1fr;
  }

  .nodes-closing__actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .nodes-hero__layout {
    gap: 40px;
    padding-top: 44px;
    padding-bottom: 48px;
  }

  .nodes-hero__copy h1 {
    margin-top: 17px;
  }

  .nodes-hero__copy .lead {
    margin-top: 20px;
    font-size: 15px;
  }

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

  .nodes-hero__actions .btn-main,
  .nodes-hero__actions .btn-sub {
    flex: 1 1 140px;
  }

  .nodes-diagram__head {
    padding-inline: 12px;
    font-size: 9px;
  }

  .nodes-diagram__legend {
    gap: 11px;
    padding-inline: 12px;
  }

  .nodes-diagram__label {
    font-size: 9px;
  }

  .nodes-diagram__note {
    display: none;
  }

  .nodes-section-head {
    margin-bottom: 34px;
  }

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

  .nodes-use,
  .nodes-use:nth-child(4),
  .nodes-use:nth-child(5) {
    grid-column: auto;
  }

  .nodes-use {
    padding: 24px;
  }

  .nodes-type__copy p {
    font-size: 15px;
  }

  .nodes-closing {
    margin-top: 52px;
  }

  .nodes-closing__actions {
    display: grid;
    grid-template-columns: 1fr;
  }
}