.nx-seo-guide,
.nx-related-tools {
  margin: 1.25rem 0 2rem;
  padding: clamp(1rem, 2vw, 1.5rem);
  border: 1px solid #e2e8f0;
  border-radius: 1.1rem;
  background: #fff;
  box-shadow: 0 12px 34px rgba(15, 23, 42, .055);
}

.nx-seo-guide__head > span,
.nx-related-tools__head > span {
  display: inline-flex;
  margin-bottom: .35rem;
  color: #2563eb;
  font-size: .76rem;
  font-weight: 800;
}

.nx-seo-guide__head h2,
.nx-related-tools__head h2 {
  margin: 0;
  color: #0f172a;
  font-size: clamp(1rem, 2vw, 1.22rem);
  font-weight: 900;
}

.nx-seo-guide__head p {
  max-width: 920px;
  margin: .55rem 0 0;
  color: #64748b;
  font-size: .86rem;
  line-height: 2;
}

.nx-seo-guide__features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
  margin-top: 1rem;
}

.nx-seo-guide__features article {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: .9rem;
  border: 1px solid #e8eef7;
  border-radius: .9rem;
  background: #f8fafc;
}

.nx-seo-guide__features i {
  display: grid;
  flex: 0 0 2.1rem;
  width: 2.1rem;
  height: 2.1rem;
  place-items: center;
  border-radius: .7rem;
  background: #e0ecff;
  color: #1d4ed8;
  font-size: 1rem;
}

.nx-seo-guide__features h3 {
  margin: 0 0 .25rem;
  color: #172033;
  font-size: .86rem;
  font-weight: 900;
}

.nx-seo-guide__features p {
  margin: 0;
  color: #64748b;
  font-size: .76rem;
  line-height: 1.9;
}

.nx-seo-guide__faq {
  display: grid;
  gap: .55rem;
  margin-top: 1rem;
}

.nx-seo-guide__faq details {
  border: 1px solid #e5eaf2;
  border-radius: .8rem;
  background: #fff;
  overflow: hidden;
}

.nx-seo-guide__faq summary {
  padding: .78rem .9rem;
  color: #1e293b;
  cursor: pointer;
  font-size: .82rem;
  font-weight: 800;
}

.nx-seo-guide__faq p {
  margin: 0;
  padding: 0 .9rem .85rem;
  color: #64748b;
  font-size: .78rem;
  line-height: 2;
}

.nx-related-tools__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .7rem;
  margin-top: .9rem;
}

.nx-related-tools__grid a {
  display: flex;
  align-items: center;
  gap: .65rem;
  min-height: 72px;
  padding: .78rem;
  border: 1px solid #e5eaf2;
  border-radius: .85rem;
  color: inherit;
  text-decoration: none;
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.nx-related-tools__grid a:hover,
.nx-related-tools__grid a:focus-visible {
  border-color: #93b4f4;
  box-shadow: 0 10px 25px rgba(37, 99, 235, .09);
  transform: translateY(-2px);
}

.nx-related-tools__grid i {
  display: grid;
  flex: 0 0 2rem;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: .65rem;
  background: #eff6ff;
  color: #2563eb;
}

.nx-related-tools__grid span {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: .16rem;
}

.nx-related-tools__grid b {
  color: #172033;
  font-size: .8rem;
}

.nx-related-tools__grid small {
  color: #64748b;
  font-size: .69rem;
  line-height: 1.65;
}

@media (max-width: 991.98px) {
  .nx-seo-guide__features,
  .nx-related-tools__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 575.98px) {
  .nx-seo-guide__features,
  .nx-related-tools__grid { grid-template-columns: 1fr; }
}