.main-footer {
  background: #f8f9fa;
  border-top: 1px solid #e9ecef;
  padding: 60px 0 20px 0;
  margin-top: 80px;
  font-family: 'Source Han Sans SC VF', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
}

.main-footer * {
  font-family: 'Source Han Sans SC VF', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.5fr 1.5fr 1fr;
  gap: 60px;
  align-items: start;
}

.footer-section {
  display: flex;
  flex-direction: column;
}

.company-info .company-description p {
  margin: 0 0 16px 0;
  font-size: 16px;
  line-height: 1.6;
  color: #495057;
  font-weight: 400;
  text-align: justify;
  text-justify: inter-word;
}

.company-addresses {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.address-item h4 {
  margin: 0 0 12px 0;
  font-size: 18px;
  font-weight: 600;
  color: #282C36;
}

.address-item p {
  margin: 0 0 8px 0;
  font-size: 14px;
  line-height: 1.5;
  color: #495057;
}

.contact-info h4 {
  margin: 0 0 20px 0;
  font-size: 18px;
  font-weight: 600;
  color: #282C36;
}

.contact-item {
  margin-bottom: 24px;
}

.email-link {
  color: #007bff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  transition: color 0.2s ease;
}

.email-link:hover {
  color: #0056b3;
  text-decoration: underline;
}

.qr-code-section {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.qr-code-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qr-code {
  width: 120px;
  height: 120px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  filter: brightness(0.9) contrast(1.1);
  transition: transform 0.2s ease;
}

.qr-code:hover {
  transform: scale(1.05);
}

.qr-code-container.highlighted {
  animation: qrHighlight 2s ease-in-out;
}

@keyframes qrHighlight {
  0% {
    transform: scale(1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(0, 123, 255, 0.3);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
}

.qr-label {
  margin: 0;
  font-size: 14px;
  color: #6c757d;
  font-weight: 500;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 32px 0 32px;
  border-top: 1px solid #e9ecef;
  margin-top: 40px;
}

.copyright {
  margin: 0;
  text-align: center;
  font-size: 14px;
  color: #6c757d;
  font-weight: 400;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  
  .company-info {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .main-footer {
    padding: 40px 0 20px 0;
    margin-top: 60px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 24px;
  }
  
  .company-addresses {
    gap: 24px;
  }
  
  .qr-code {
    width: 100px;
    height: 100px;
  }
  
  .footer-bottom {
    padding: 20px 24px 0 24px;
  }
}

@media (max-width: 480px) {
  .main-footer {
    padding: 32px 0 16px 0;
    margin-top: 40px;
  }
  
  .footer-content {
    padding: 0 16px;
    gap: 24px;
  }
  
  .company-info .company-description p {
    font-size: 15px;
  }
  
  .address-item h4,
  .contact-info h4 {
    font-size: 16px;
  }
  
  .address-item p {
    font-size: 13px;
  }
  
  .qr-code {
    width: 80px;
    height: 80px;
  }
  
  .footer-bottom {
    padding: 16px 16px 0 16px;
  }
  
  .copyright {
    font-size: 13px;
  }
}