.grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}
.brand-green {
  background-color: #008040;
}
.brand-green-text {
  color: #008040;
}
.bg-brand-green {
  background-color: #008C45;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 40px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.section-title p {
    font-size: 18px;
    color: #7f8c8d;
}

/* 响应式设计 */
@media (min-width: 768px) {
  .grid-layout {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .grid-layout {
    grid-template-columns: repeat(3, 1fr);
  }
}