.custom-faq details {
  border-bottom: 1px solid #ddd;
  padding: 18px 0;
}

.custom-faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  list-style: none;
  position: relative;
  padding-right: 35px;
}

.custom-faq summary::-webkit-details-marker {
  display: none;
}

.custom-faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-size: 26px;
  line-height: 1;
}

.custom-faq details[open] summary::after {
  content: "−";
}

.custom-faq p {
  margin: 14px 0 0;
}