.sub-hero-strip {
  background: var(--secondary);
  padding: 40px 20px;
  border-bottom: 3px solid var(--accent);
}

.sub-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.sub-hero-strip h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.sub-hero-strip p {
  color: rgba(243, 232, 255, 0.85);
  max-width: 700px;
  font-size: 1.05rem;
}

.sub-article {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.sub-grid-rail {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.sub-prose h2 {
  font-size: 1.25rem;
  color: var(--primary);
  margin: 32px 0 12px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sub-prose h3 {
  font-size: 1.05rem;
  color: var(--accent);
  margin: 24px 0 10px;
}

.sub-prose p {
  margin-bottom: 16px;
  color: rgba(243, 232, 255, 0.88);
  line-height: 1.65;
}

.sub-prose ul {
  margin: 0 0 16px 20px;
  color: rgba(243, 232, 255, 0.88);
}

.sub-prose li {
  margin-bottom: 8px;
}

.sub-image-rail {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 100px;
}

.sub-image-rail img {
  max-width: 100%;
  max-height: 320px;
  object-fit: cover;
  border: 2px solid var(--border);
}

.sub-callout {
  padding: 20px;
  background: rgba(45, 212, 191, 0.1);
  border-left: 4px solid var(--accent);
  margin: 24px 0;
  font-size: 0.95rem;
}

.sub-callout strong {
  color: var(--accent);
  font-family: var(--font-mono);
}

@media (max-width: 768px) {
  .sub-grid-rail {
    grid-template-columns: 1fr;
  }

  .sub-image-rail {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    max-width: 100%;
    overflow: hidden;
  }

  .sub-image-rail img {
    max-width: 100%;
    width: 100%;
    flex: 1 1 100%;
    object-fit: contain;
  }
}