.problems-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 2.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  font-size: 1.05rem;
  line-height: 1.75;
}

.problems-card + .problems-card {
  margin-top: 1.5rem;
}

.problems-card h2 {
  font-size: 2rem;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.problems-card h3 {
  font-size: 1.4rem;
  line-height: 1.4;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.problems-card p {
  margin-bottom: 1.2rem;
}

.problems-card ul {
  margin: 1rem 0 1.2rem 0;
  padding-left: 1.4rem;
}

.problems-card li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.problems-section-title {
  display: inline-block;
  background: #c8f5ed;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1.15rem;
  color: #004b47;
  margin-bottom: 1.2rem;
}

.problems-subnote {
  margin-top: 1.2rem;
  color: #4b5563;
  font-size: 0.95rem;
  line-height: 1.6;
}

.problem-focus {
  margin-top: 1.2rem;
  padding: 1.2rem 1.4rem;
  border-left: 4px solid #2563eb;
  background: #f8fafc;
  border-radius: 12px;
  color: #374151;
  font-size: 1rem;
  line-height: 1.7;
}

footer {
  text-align: center;
  padding: 2.5rem 0;
  font-size: 1rem;
  color: #444;
}