.section-group {
  margin-bottom: 2.5rem;
}

.section-group:last-child {
  margin-bottom: 0;
}

.about-jmooc-sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
}

#jmooc-courses,
#jmooc-activities,
#jmooc-organization {
  background: transparent;
}

.content-subblock {
  background: #fff;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 12px 24px rgba(31, 35, 40, 0.08);
  margin-bottom: 1.5rem;
}

.content-subblock:last-child {
  margin-bottom: 0;
}

#jmooc-organization .section-title {
  margin-top: 0;
  margin-bottom: 1.5rem;
}

#about-jmooc-message:empty {
  display: none;
}

.content-subblock + .content-subblock {
  margin-top: 2.5rem;
}

#jmooc-courses .section-title,
#jmooc-activities .section-title,
#jmooc-organization .section-title {
  text-align: center;
  margin-bottom: 1.25rem;
}

.content-subtitle {
  font-size: 1.35rem;
  font-weight: 700;
  color: #1f2328;
  text-align: left;
  margin-bottom: 1.5rem;
}

.service-block {
  max-width: none;
  margin: 0;
}

.service-section + .service-section {
  margin-top: 1.75rem;
}

.member-type-grid {
  margin-top: 0.5rem;
}

.jmooc-intro-block + .jmooc-intro-block {
  margin-top: 1.5rem;
}

.jmooc-intro-image-frame {
  margin: 1.5rem 0;
}

.jmooc-intro-image {
  width: 100%;
  max-width: 100%;
  display: block;
}

.service-heading {
  font-size: 1.05rem;
  font-weight: 700;
  color: #1f2328;
  margin-bottom: 0.75rem;
}

.service-section p,
.service-list,
.service-sublist {
  color: #333;
  line-height: 1.8;
}

.service-list,
.service-sublist {
  padding-left: 1.5rem;
  margin-bottom: 0;
}

.service-sublist {
  margin-top: 0.5rem;
}

.service-link-wrap {
  margin-top: 2rem;
  text-align: center;
}

.quality-members-image {
  width: 50%;
}

.stats-graph-image {
  max-width: 700px;
  width: 100%;
  height: auto;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 1rem;
}

.platform-card {
  background: #f8f9fb;
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  height: 100%;
}

.platform-card img {
  width: 100%;
  max-height: 80px;
  object-fit: contain;
}

.platform-highlight {
  margin-top: 12px;
  font-size: 1rem;
  line-height: 1.4;
  color: #1f2328;
  text-align: left;
  font-weight: 700;
}

.platform-description {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(31, 35, 40, 0.08);
  text-align: left;
}

.platform-description p {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #555;
}

.platform-description p:last-child {
  margin-bottom: 0;
}

.platform-subhighlight {
  font-weight: 700;
  color: #555;
  font-size: 0.95rem;
}

.menu-secondary-links {
  margin-top: 1rem;
}

.side-cta-menu {
  margin-top: 1rem;
}

.about-jmooc-sidebar .institutions-menu {
  position: static;
  top: auto;
}

.institutions-menu .menu-cta-link {
  font-weight: 700;
  color: #d08a5a;
}

.service-cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 260px;
  min-height: 52px;
  padding: 0.875rem 1.75rem;
  border-radius: 999px;
  background: #d08a5a;
  border: 1px solid #d08a5a;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
}

.service-cta-button:hover,
.service-cta-button:focus {
  background: #bd7b4f;
  border-color: #bd7b4f;
  color: #fff;
}

@media (max-width: 991.98px) {
  .about-jmooc-sidebar {
    position: static;
    top: auto;
  }
}

@media (max-width: 575.98px) {
  .platform-grid {
    grid-template-columns: 1fr;
  }
}