.certificate-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding-top: 50px;
  padding-bottom: 50px;
}

.certificate-image {
  width: 45%;
  margin: 10px;
}

.caption {
  width: 100%;
  text-align: center;
  font-size: 40px;
  margin-bottom: 20px;
}

@media (max-width: 767px) {
  .certificate-image {
    width: 43.5%; /* 在移动端显示2张图片每行 */
  }
}

@media (min-width: 768px) {
  .certificate-image {
    width: 21%; /* 在PC端显示4张图片每行 */
  }
}

.g_btn {
  color: #fff !important;
  font-weight: bold;
  background: #D32E44;
  border-color: #D32E44;
}