/* アコーディオン */
.accordion-item {
  width: 93%;
  max-width: 1100px;
  margin: 0 auto;
  overflow: hidden;
  gap: 0;
}

.accordion-trigger {
  width: 100%;
  padding: 28px 0;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  text-align: left;
  gap: 15px;
  border-bottom: 1px solid #cccccc;
}

.accordion-trigger h3,
.accordion-trigger h4,
.accordion-trigger p {
  margin: 0;
  flex-grow: 1;
  padding-right: 33px;
  transition: all 0.1s ease;
}

/* クリック後出現*/
.accordion-content {
  width: 100%;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.1s ease-out, padding 0.1s ease-out;
  padding: 0;
}

.is-open > .accordion-content {
  max-height: 5000px;
  padding: 0px;
  transition: max-height 0.3s ease-in, padding 0.3s ease-in;
}

.accordion-content .accordion-content-item {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.1s ease, padding 0.1s ease;
  padding: 0 30px;
}

.is-open .accordion-content .accordion-content-item {
  max-height: 3000px;
  transition: max-height 0.3s ease-in, padding 0.3s ease-in;
  padding: 20px 30px;
}

.accordion-content .accordion-content-item p {
  margin: 0;
}

.is-open .accordion-content .accordion-content-item:hover {
  opacity: 0.5;
}

.accordion-content .accordion-content-item p a {
  display: block;
}

.is-open .accordion-content .accordion-content-item a {
  text-decoration: underline !important;
}

/* 丸背景 */
.accordion-trigger::before {
  content: "";
  position: absolute;
  top: 50%;
  right: 0px;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #002b5c;
}

/* 横棒*/
.accordion-trigger::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 8px;
  width: 16px;
  height: 2px;
  background-color: #fff;
  transform: translateY(-50%);
}

.accordion-trigger span.plus-vertical {
  content: "";
  position: absolute;
  top: 50%;
  right: 15px;
  width: 2px;
  height: 16px;
  background-color: #fff;
  transform: translateY(-50%);
  transition: opacity 0.3s ease;
}

.is-open > .accordion-trigger span.plus-vertical {
  transform: translateY(-50%) rotate(90deg);
}

.accordion-trigger h2 {
  padding-right: 35px;
}

.is-sub-accordion {
  width: 100%;
}

.is-sub-accordion .accordion-trigger .accordion-content-item {
  padding: 10px 15px;
}

.is-sub-accordion .accordion-trigger .plus-icon-wrapper::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 11px;
  transform: translateY(-50%) rotate(0deg);
  width: 10px;
  height: 6px;
  background-image: url("../../img/dpblue-arrow-down.png");
  background-size: contain;
  background-repeat: no-repeat;
  transition: transform 0.3s ease;
  display: block;
  z-index: 550;
}

.is-sub-accordion .student-list-bottom {
  padding: 0 15px 20px 15px;
  border-bottom: none;
  border-top: none;
}

.is-sub-accordion .student-list-bottom .student-list-bottom-box {
  padding: 2px 20px;
}

.is-sub-accordion .accordion-trigger {
  border-bottom: #cccccc 1px dashed;
  padding: 10px 20px;
}

.open-tg.is-sub-accordion .accordion-trigger {
  border: none;
  background-color: #edf7fc;
}

.is-sub-accordion > .accordion-trigger::before,
.is-sub-accordion > .accordion-trigger::after {
  display: none !important;
}

.is-sub-accordion > .accordion-trigger span.plus-vertical {
  display: none !important;
}

.open-tg.is-sub-accordion .accordion-trigger .plus-icon-wrapper::after {
  transform: translateY(-50%) rotate(180deg);
}

.open-tg > .accordion-content {
  max-height: 3000px;
  transition: max-height 0.3s ease-in;
  background-color: #edf7fc;
  border-radius: 0 0 100px 0;
  margin-bottom: 5px;
}

@media screen and (max-width: 550px) {
  .is-sub-accordion .accordion-trigger {
    padding: 10px 20px 10px 0;
  }

  .is-sub-accordion .student-list-bottom {
    padding: 0 0 20px 0;
  }


.is-sub-accordion .student-list-bottom .student-list-bottom-box {
    padding: 0 15px;
  }

}