.support-mast {
  position: relative;
  overflow-x: clip;
  padding-top: var(--space-9);
  padding-bottom: var(--space-9);
  border-bottom: var(--border-thin) solid var(--color-soft-line);
}

.support-mast::before {
  position: absolute;
  top: var(--space-6);
  right: -12rem;
  width: 34rem;
  height: 34rem;
  content: "";
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--radius-xlarge);
  background:
    linear-gradient(var(--color-transparent), var(--color-soft-accent)),
    repeating-linear-gradient(
      118deg,
      var(--color-transparent),
      var(--color-transparent) var(--space-5),
      var(--color-soft-line) var(--space-5),
      var(--color-soft-line) calc(var(--space-5) + var(--border-thin))
    );
  opacity: 0.48;
  transform: rotate(24deg);
  pointer-events: none;
}

.support-mast-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(20rem, 0.88fr);
  align-items: center;
  gap: var(--space-9);
}

.support-intro {
  min-width: 0;
  max-width: 48rem;
}

.support-intro h1 {
  max-width: 46rem;
  margin-top: var(--space-4);
}

.support-lead {
  max-width: 43rem;
  margin: var(--space-5) 0 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-lead);
}

.support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.support-route {
  position: relative;
  min-width: 0;
  padding: var(--space-7);
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--radius-xlarge);
  background:
    radial-gradient(circle at top right, var(--color-soft-accent-strong), var(--color-transparent) 42%),
    var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.support-route::before {
  position: absolute;
  top: var(--space-8);
  bottom: var(--space-8);
  left: calc(var(--space-7) + 0.38rem);
  width: var(--border-strong);
  content: "";
  border-radius: var(--radius-pill);
  background: linear-gradient(var(--color-accent), var(--color-border), var(--color-accent-dark));
  box-shadow: 0 0 1rem var(--color-glow-soft);
}

.support-route-label {
  display: inline-flex;
  margin-bottom: var(--space-5);
  padding: var(--space-2) var(--space-3);
  border: var(--border-thin) solid var(--color-accent-dark);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  background: var(--color-soft-accent);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
}

.support-route-item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-4);
}

.support-route-item + .support-route-item {
  margin-top: var(--space-5);
}

.support-route-node {
  z-index: 1;
  width: 0.875rem;
  height: 0.875rem;
  margin-top: var(--space-2);
  flex-shrink: 0;
  border: var(--border-strong) solid var(--color-bg);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 1rem var(--color-glow);
}

.support-route-item strong {
  color: var(--color-text);
}

.support-route-item p {
  margin: var(--space-1) 0 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: var(--line-body);
}

.support-nav-wrap {
  position: relative;
  z-index: 12;
  margin-top: calc(var(--space-5) * -1);
}

.support-category {
  display: grid;
  grid-template-columns: minmax(15rem, 0.5fr) minmax(0, 1.5fr);
  align-items: start;
  gap: var(--space-8);
}

.support-category-heading {
  position: sticky;
  top: var(--space-8);
  min-width: 0;
  padding: var(--space-6);
  border-left: var(--border-strong) solid var(--color-accent);
  border-radius: 0 var(--radius-large) var(--radius-large) 0;
  background: linear-gradient(100deg, var(--color-soft-accent), var(--color-transparent));
}

.support-category-heading-offset {
  transform: translateY(var(--space-6));
}

.support-category-heading h2 {
  margin-top: var(--space-3);
  font-size: clamp(1.8rem, 3.4vw, 3rem);
}

.support-category-heading p {
  margin: var(--space-4) 0 0;
  color: var(--color-text-muted);
}

.support-category-mark {
  display: block;
  margin-bottom: var(--space-5);
  color: var(--color-border);
  font-family: var(--font-mono);
  font-size: clamp(2.75rem, 5vw, 5rem);
  font-weight: var(--weight-bold);
  letter-spacing: -0.08em;
  line-height: var(--line-tight);
  writing-mode: vertical-rl;
}

.support-section-alt {
  border-top: var(--border-thin) solid var(--color-soft-line);
  border-bottom: var(--border-thin) solid var(--color-soft-line);
  background:
    linear-gradient(135deg, var(--color-soft-text), var(--color-transparent)),
    var(--color-panel);
}

.support-section-alt .faq-item {
  background: var(--color-bg);
}

.support-section-alt .faq-item[open] {
  background: var(--color-panel-strong);
}

.support-next {
  grid-column: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-6);
  margin-top: var(--space-7);
  padding: var(--space-7);
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--radius-xlarge);
  background:
    radial-gradient(circle at right center, var(--color-glow-soft), var(--color-transparent) 46%),
    var(--color-panel-strong);
}

.support-next h2 {
  margin-top: var(--space-3);
  font-size: clamp(1.7rem, 3vw, 2.6rem);
}

.support-next p {
  max-width: 42rem;
  margin: var(--space-3) 0 0;
  color: var(--color-text-muted);
}

.support-next .button {
  white-space: nowrap;
}

@media (max-width: 64rem) {
  .support-mast-grid,
  .support-category {
    grid-template-columns: 1fr;
  }

  .support-mast-grid {
    gap: var(--space-7);
  }

  .support-route {
    max-width: 44rem;
  }

  .support-category-heading {
    position: relative;
    top: auto;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-5);
  }

  .support-category-heading-offset {
    transform: none;
  }

  .support-category-mark {
    margin: 0;
    writing-mode: horizontal-tb;
  }

  .support-next {
    grid-column: auto;
  }
}

@media (max-width: 40rem) {
  .support-mast {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .support-mast::before {
    right: -22rem;
  }

  .support-actions .button {
    flex: 1 1 9rem;
  }

  .support-route {
    padding: var(--space-5);
    border-radius: var(--radius-large);
  }

  .support-route::before {
    top: var(--space-7);
    bottom: var(--space-7);
    left: calc(var(--space-5) + 0.38rem);
  }

  .support-category {
    gap: var(--space-6);
  }

  .support-category-heading {
    grid-template-columns: 1fr;
    padding: var(--space-5);
    border-radius: 0 var(--radius-medium) var(--radius-medium) 0;
  }

  .support-category-mark {
    font-size: 2.6rem;
  }

  .support-next {
    grid-template-columns: 1fr;
    padding: var(--space-5);
    border-radius: var(--radius-large);
  }

  .support-next .button {
    width: 100%;
  }
}