.nodes-hero {
  position: relative;
  padding-top: clamp(72px, 8vw, 112px);
  padding-bottom: clamp(64px, 8vw, 104px);
}

.nodes-hero-grid {
  display: grid;
  min-height: 610px;
  grid-template-columns: minmax(390px, 0.88fr) minmax(520px, 1.12fr);
  align-items: center;
  gap: clamp(38px, 6vw, 86px);
}

.nodes-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 620px;
}

.nodes-hero-copy h1 {
  margin-top: 22px;
  margin-bottom: 24px;
}

.nodes-hero-description {
  max-width: 590px;
  margin-bottom: 24px;
  color: var(--color-text-muted);
  font-size: 17px;
  line-height: 1.8;
}

.nodes-hero-description strong {
  color: var(--color-text);
}

.nodes-hero-actions {
  display: flex;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.nodes-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nodes-facts .fact-pill {
  color: var(--color-text);
  background: var(--color-panel);
}

.nodes-signup-note {
  margin-top: 16px;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 13px;
}

.route-atlas {
  position: relative;
  min-height: 570px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-window);
  color: var(--color-accent);
  background:
    radial-gradient(circle at 68% 38%, var(--color-accent-soft), var(--color-transparent) 34%),
    var(--color-panel);
  box-shadow: var(--shadow-window), inset 0 1px 0 var(--color-white-medium);
}

.route-atlas::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.46;
  background-image:
    linear-gradient(var(--color-border-soft) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-border-soft) 1px, var(--color-transparent) 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(var(--color-transparent), var(--color-bg) 20%, var(--color-bg) 82%, var(--color-transparent));
  pointer-events: none;
}

.atlas-bar {
  position: relative;
  z-index: 3;
  display: flex;
  min-height: 66px;
  padding: 0 22px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-overlay);
}

.atlas-title,
.atlas-state,
.atlas-label,
.atlas-caption {
  font-family: var(--font-mono);
}

.atlas-title {
  color: var(--color-text);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: 0.12em;
}

.atlas-state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 10px;
}

.atlas-state span {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  box-shadow: 0 0 0 5px var(--color-success-soft);
}

.atlas-graphic {
  position: absolute;
  top: 70px;
  right: 0;
  left: 0;
  width: 100%;
  height: calc(100% - 112px);
}

.atlas-orbit,
.atlas-route,
.atlas-plane {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.atlas-orbit {
  stroke: var(--color-border);
  stroke-width: 1.4;
}

.orbit-wide {
  stroke-dasharray: 5 11;
}

.orbit-inner {
  opacity: 0.7;
  stroke-dasharray: 2 9;
}

.atlas-route {
  stroke-width: 3;
  stroke-dasharray: 8 10;
  animation: atlas-flow 10s linear infinite;
}

.atlas-route-secondary {
  color: var(--color-success);
  opacity: 0.74;
  animation-direction: reverse;
  animation-duration: 12s;
}

.atlas-node {
  fill: var(--color-panel);
  stroke: var(--color-accent);
  stroke-width: 3;
}

.atlas-node-main {
  fill: var(--color-accent);
  stroke: var(--color-panel);
  stroke-width: 6;
}

.atlas-plane {
  fill: var(--color-accent);
  stroke-width: 2;
  animation: atlas-plane 3.2s ease-in-out infinite;
  transform-origin: center;
}

.atlas-label {
  position: absolute;
  z-index: 4;
  display: inline-flex;
  min-height: 32px;
  padding: 0 11px;
  align-items: center;
  border: 1px solid var(--color-accent-glow);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  background: var(--color-panel-soft);
  box-shadow: var(--shadow-bubble);
  font-size: 10px;
  font-weight: 700;
}

.atlas-label-asia {
  top: 28%;
  left: 15%;
}

.atlas-label-america {
  top: 47%;
  right: 11%;
}

.atlas-label-europe {
  right: 34%;
  bottom: 24%;
}

.atlas-label-other {
  bottom: 19%;
  left: 11%;
}

.atlas-caption {
  position: absolute;
  right: 22px;
  bottom: 18px;
  left: 22px;
  z-index: 4;
  padding-top: 14px;
  border-top: 1px solid var(--color-border-soft);
  color: var(--color-text-muted);
  font-size: 10px;
  text-align: center;
}

.table-note {
  max-width: 880px;
  margin: 22px auto 0;
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
}

.section-type,
.section-switching {
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-white-soft);
}

.feature-thread-summary h3 {
  margin-top: 16px;
}

.feature-thread-panel p:last-child {
  margin-bottom: 0;
}

.use-case-list {
  display: grid;
  border-top: 1px solid var(--color-border-soft);
}

.use-case {
  display: grid;
  padding-top: 34px;
  padding-bottom: 34px;
  grid-template-columns: minmax(230px, 0.58fr) minmax(0, 1.42fr);
  gap: clamp(28px, 6vw, 72px);
  border-bottom: 1px solid var(--color-border-soft);
}

.use-case-heading {
  display: grid;
  align-content: start;
  justify-items: start;
}

.use-case-heading h3 {
  margin-top: 15px;
  margin-bottom: 0;
}

.use-case-mark {
  display: inline-flex;
  min-height: 30px;
  padding: 0 10px;
  align-items: center;
  border: 1px solid var(--color-accent-glow);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  background: var(--color-accent-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.08em;
}

.use-case-copy {
  color: var(--color-text-muted);
}

.use-case-copy p:last-child {
  margin-bottom: 0;
}

.switching-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  align-items: start;
  gap: clamp(30px, 6vw, 72px);
}

.switching-steps ol {
  display: grid;
  gap: 26px;
}

.switching-steps li {
  padding-bottom: 26px;
  border-bottom: 1px solid var(--color-border-soft);
}

.switching-steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.switching-steps h3 {
  padding-top: 0;
  margin-bottom: 9px;
  font-size: 22px;
}

.switching-steps p {
  margin-bottom: 0;
}

.selection-board {
  position: sticky;
  top: var(--toc-offset);
  padding: 28px;
  border: 1px solid var(--color-accent-glow);
  border-radius: var(--radius-large);
  background:
    radial-gradient(circle at 100% 0, var(--color-accent-soft), var(--color-transparent) 38%),
    var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.selection-board h3 {
  margin-top: 18px;
}

.selection-board ul {
  display: grid;
  margin: 0 0 24px;
  padding: 20px 0 0;
  gap: 13px;
  border-top: 1px solid var(--color-border-soft);
  list-style: none;
}

.selection-board li {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 13px;
}

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

.coverage-panel {
  display: grid;
  padding: clamp(28px, 5vw, 52px);
  grid-template-columns: minmax(0, 1.22fr) minmax(330px, 0.78fr);
  gap: clamp(34px, 7vw, 82px);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-window);
  background:
    radial-gradient(circle at 84% 20%, var(--color-accent-soft), var(--color-transparent) 28%),
    var(--color-panel);
  box-shadow: var(--shadow-window);
}

.coverage-copy p {
  color: var(--color-text-muted);
}

.coverage-copy p:last-child {
  margin-bottom: 0;
}

.coverage-regions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: center;
  gap: 12px;
}

.region-badge {
  min-height: 156px;
  padding: 19px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-medium);
  background: var(--color-white-soft);
}

.region-badge-mark {
  display: block;
  margin-bottom: 16px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.08em;
}

.region-badge strong {
  display: block;
  margin-bottom: 7px;
  color: var(--color-text);
}

.region-badge p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.6;
}

.coverage-notice {
  max-width: 960px;
  margin: 30px auto 0;
}

@keyframes atlas-flow {
  to {
    stroke-dashoffset: -144;
  }
}

@keyframes atlas-plane {
  50% {
    opacity: 0.72;
    transform: translate(5px, -5px);
  }
}

@media (max-width: 980px) {
  .nodes-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
  }

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

  .route-atlas {
    min-height: 560px;
  }

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

  .selection-board {
    position: static;
  }

  .coverage-regions {
    max-width: 680px;
  }
}

@media (max-width: 800px) {
  .use-case {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

@media (max-width: 640px) {
  .nodes-hero {
    padding-top: 48px;
    padding-bottom: 64px;
  }

  .nodes-hero-grid {
    gap: 42px;
  }

  .nodes-hero-description {
    font-size: 15px;
  }

  .nodes-hero-actions .button {
    min-width: min(150px, calc(50% - 6px));
    flex: 1 1 140px;
  }

  .nodes-facts {
    gap: 7px;
  }

  .route-atlas {
    min-height: 440px;
    border-radius: var(--radius-large);
  }

  .atlas-bar {
    min-height: 58px;
    padding-inline: 15px;
  }

  .atlas-graphic {
    top: 58px;
    height: calc(100% - 92px);
  }

  .atlas-label {
    min-height: 28px;
    padding-inline: 9px;
    font-size: 9px;
  }

  .atlas-label-asia {
    left: 8%;
  }

  .atlas-label-america {
    right: 6%;
  }

  .atlas-label-europe {
    right: 26%;
  }

  .atlas-label-other {
    left: 7%;
  }

  .atlas-caption {
    right: 14px;
    bottom: 12px;
    left: 14px;
  }

  .use-case {
    padding-top: 28px;
    padding-bottom: 28px;
  }

  .switching-steps h3 {
    font-size: 20px;
  }

  .selection-board {
    padding: 22px;
  }

  .coverage-panel {
    padding: 22px;
    border-radius: var(--radius-large);
  }

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

  .region-badge {
    min-height: auto;
  }
}

@media (max-width: 380px) {
  .atlas-state {
    display: none;
  }

  .atlas-label-europe {
    right: 16%;
  }

  .atlas-label-other {
    bottom: 22%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .atlas-route,
  .atlas-plane {
    animation: none;
  }
}