.sec_ecosystem {
  margin-top: 100px;
}

.role_list {
  width: 100%;
  margin: 0 auto;
}

.role_item {
  width: 100%;
  position: relative;
  top: 0;
  border-top: 1px solid #19274f;
}

.role_item:last-child {
  border-bottom: 1px solid #19274f;
}

.role_summary {
  position: relative;
  width: 100%;
  padding: 30px 50px 30px 30px;
  display: flex;
  align-items: flex-start;
  cursor: pointer;
}

.role_summary-head {
  margin-right: 0.5em;
  color: #19274f;
  font-size: 26px;
  line-height: 0.9;
}

.role_summary-body {
  color: #19274f;
  font-size: 18px;
  line-height: 1.4;
}

.role_summary .state {
  position: absolute;
  right: 10px;
  width: 20px;
  height: 20px;
}

.role_summary .state::before {
  content: '';
  width: 2px;
  height: 20px;
  background-color: #19274f;
  position: absolute;
  top: 0;
  left: 9px;
  transition: .2s;
}

.role_summary.active > .state::before  {
  transform: rotate(90deg);
}

.role_summary .state::after {
  content: '';
  width: 20px;
  height: 2px;
  position: absolute;
  background-color: #19274f;
  top: 9px;
  left: 0;
}

.role_item .role_detail_list {
  padding: 30px 60px;
  display: none;
  width: 100%;
  background-color: #f4f6fb;
}

.role_detail_item {
  list-style: none;
}

.role_detail_inner {
  display: flex;
  flex-direction: column;
}

.role_detail_item .main_text {
  letter-spacing: 0.037em;
  line-height: calc(25 / 16);
}

.main_text_answer {
  font-size: 26px;
  color: #19274f;
}

.main_text_pdf {
  margin-left: 8px;
}

.main_image {
  margin-top: 1em;
  width: 100%;
  height: auto;
}

.main_image_sp {
  margin-top: 1em;
  width: 100%;
  height: auto;
  display: none;
}

.role_detail_item .main_text_link {
  position: relative;
  color: #19274f;
  text-decoration: underline;
}

.main_text_link_icon {
  display: inline-block;
  width: 18px;
  height: 13px;
  margin-right: 8px;
  margin-left: 8px;
  vertical-align: middle;
  position: relative;
}

.main_text_link_icon::before,
.main_text_link_icon::after {
  display: block;
  width: 13px;
  height: 8px;
  border: 2px solid #595757;
  content: '';
  position: absolute;
}

.main_text_link_icon::before {
  border-top: none;
  border-right: none;
  bottom: 1px;
  right: 5px;
}

.main_text_link_icon::after {
  top: 0;
  right: 1px;
}

.main_text_sublink_wrapper {
  margin-top: 0.5em;
  font-size: 16px;
}

.main_text_sublink-sub {
  color: #595757;
  font-size: 12px;
}

.role_detail_item .main_text_sublink {
  padding-left: 0.3em;
  color: #19274f;
  letter-spacing: 0.037em;
  text-decoration: underline;
  position: relative;
}

.role_detail_item:first-child {
  margin-top: 0;
}

.role_detail_item:last-child {
  margin-bottom: 0;
}

.sub {
  margin: 60px 0 110px;
  font-size: 18px;
  letter-spacing: 0.037em;
}

.sec_ecosystem .sub_link {
  color: #19274f;
  font-size: 18px;
  letter-spacing: 0.037em;
  text-decoration: underline;
}