.site_main_wrapper {
  width: 100%;
}
.question_items {
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.question_item_box {
  display: flex;
  flex-direction: column;
  background-color: #fff;
}
.wrapper_question {
  margin: 20px 0 0;

}
.question_item_box_title {
  display: flex;
  align-items: center;
  gap: 20px;
}
.question_item_box_title h4 {
  margin: 0;
  font-size: 14px;
  color: #848484;
}
.question_item_box_content {
  padding: 0 37px;
  color: #848484;
  font-size: 15px;
  max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease;
}
.question_item_box_title h4:hover {
  color: #800000;
  cursor: pointer;
}
.icon_question_toggle.icon_plus::after {
  content: '';
  position: absolute;
  display: inline-flex;
  width: 2px;
  height: 12px;
  background-color: #848484;
  left: 50%;
  transform: translate(-50, 0);
}
.icon_question_toggle.icon_plus::before {
  content: '';
  position: absolute;
  display: inline-flex;
  width: 12px;
  height: 2px;
  background-color: #848484;
  top: 50%;
  transform: translate(0, -50%);
}
.question_item_box.active .question_item_box_content {
 display: flex;
  flex-direction: column;
   margin: 10px 0 21px;
    max-height: 2000px; /* заведомо больше реальной высоты */
    opacity: 1;
}
.question_item_box.active h4 {
  color: #800000;
}