.faq .icon-fold-main {
  width: 20px;
  height: 20px;
  display: flex;
  position: relative;
  justify-content: center;
  align-items: center;
}
.faq .icon-fold-main .icon-fold {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  cursor: pointer;
}
.faq .icon-first {
  display: none;
  width: 15px;
  height: 2px;
  background-color: #000;
}
.faq .box-fold {
  transition: all 0.3s;
  overflow: hidden;
}
.faq .box-fold_header {
  border-bottom: 1px solid #ddd;
}