@charset "utf-8";

.accordion  {
  margin-inline: 0;
  border:2px solid #a9a9a9;
}

.accordion_title {
  position: relative;
  border: none;
  display: block;
  list-style: none;
  width: 100%;
  cursor: pointer;
  padding: 1.4em 2em 1.4em 1.4em;
  line-height: 1.6em;
  overflow:auto;
}

.accordion_title .accordion_title_caption{
  font-weight: bold;
}
.accordion_title .accordion_title_info{
  font-size: 1rem;
}
.accordion_title .accordion_next{
  font-size: 1rem;
  font-weight: bold;
}


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

.accordion::details-content {
  opacity: 0;
  block-size: 0;
  transition: .3s;
  transition-property: display, opacity, block-size, padding;
  transition-behavior: allow-discrete;
  line-height: 1.6em;
}

.accordion .accordion_content {
  padding: 0 2em 0 3em;
}

.accordion .accordion_content > *:first-of-type {
  margin-top: 0;
}

.accordion .accordion_content > *:last-of-type {
  margin-bottom: 0;
}

.accordion[open]::details-content {
  opacity: 1;
  block-size: auto;
  block-size: calc-size(auto, size);
}

.accordion[open] .accordion_content {
  padding: 0px 25px 25px 25px;
}

.accordion[open] .accordion_content .accordion_content_title {
  margin-top: 10px;
  padding: 0.5em;/*文字周りの余白*/
  color: #494949;/*文字色*/
  background: #fffaf4;/*背景色*/
  border-left: solid 5px #ffaf58;/*左線（実線 太さ 色）*/
  font-weight: bold;
}

.accordion[open] .accordion_content .accordion_content_text {
  font-size: 1rem;
}