.about-main {
  max-width: 1280px;
  margin: 3rem auto;
  padding: 0 1rem;
}

.about-section {
  background: white;
  border-radius: 0.75rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  padding: 2rem;
  margin-bottom: 2rem;
}

.section-heading {
  font-size: 1.5rem;
  font-weight: 600;
  color: #2D3748;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #2B6CB0;
}

/* 历史内容 */
.history-content {
  line-height: 1.8;
  color: #4A5568;
  max-width: 800px;
}

/* 营业时间 */
.hours-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.hours-item {
  display: flex;
  gap: 2rem;
  padding: 0.75rem;
  background: #4A5568;;
  border-radius: 0.5rem;
}

.hours-day {
  font-weight: 500;
  min-width: 120px;
}

/* 联系表单 */
.contact-form {
  display: grid;
  gap: 1.5rem;
  max-width: 600px;
}

.form-group {
  display: grid;
  gap: 0.5rem;
}

.form-label {
  font-weight: 500;
  color: #2D3748;
}

.form-input {
  padding: 0.75rem;
  border: 1px solid #CBD5E0;
  border-radius: 0.5rem;
  transition: border-color 0.3s;
}

.form-input:focus {
  outline: none;
  border-color: #2B6CB0;
  box-shadow: 0 0 0 1px #2B6CB0;
}

.submit-btn {
  background: #2B6CB0;
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.3s;
  justify-self: start;
}

.submit-btn:hover {
  background: #2C5282;
}

@media (max-width: 768px) {
  .hours-item {
      flex-direction: column;
      gap: 0.5rem;
  }
}