.main {
  padding-top: 13.3rem;
  overflow: visible;
}

.maintitle_wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 15rem;
}

.title {
  width: 58.1rem;
  text-align: center;
  height: 46.6rem;
  font-size: 5rem;
  font-weight: bold;
  letter-spacing: 0.5rem;
  padding-top: 19.2rem;
  color: #2B4A7F;
}

.mainvisual {
  width: 69.9rem;
  height: 46.6rem;
}

.date {
  position: relative;
  padding-bottom: 12rem;
}

/* 装飾ロゴ画像が右にはみ出して横スクロールが出るのを防ぐクリップ用ラッパー
   （.date 自体に overflow を付けるとサイドバーの position:sticky が壊れるため、装飾だけを囲って切り取る） */
.date_decoration {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.date_text {
  font-size: 2.3rem;
  font-weight: bold;
  margin-bottom: 9rem;
  margin-left: 6.3rem;
  color: #0282C1;
}

.date_top_img,
.date_center_img,
.date_bottom_img {
  width: 66rem;
  height: 66rem;
  position: absolute;
  right: -22.3rem;
  pointer-events: none;
}

.date_top_img {
  top: -3rem;
}

.date_center_img {
  top: 205.4rem;
}

.date_bottom_img {
  bottom: 3.5rem;
}

.pc_only {
  display: block;
}

.sp_only {
  display: none;
}

.disclosure_layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 48rem 53.8rem;
  column-gap: 13.4rem;
  align-items: start;
  padding: 0 6.4rem;
}

.disclosure_sidebar {
  position: sticky;
  top: 11rem;
  display: flex;
  flex-direction: column;
  width: 48rem;
  /* デザイン上の高さ(57.3rem)を上限にしつつ、画面高さからはみ出さないようにする。
     広い画面(フルHD等)では rem が拡大するため、ビューポート基準でクランプして見切れを防ぐ。 */
  height: min(57.3rem, calc(100vh - 13rem));
  min-height: 0;
  padding: 4rem;
  background: #fff;
  border: 0.1rem solid #0282C1;
  border-radius: 2rem;
  align-self: start;
  box-sizing: border-box;
}

.disclosure_sidebar nav {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.disclosure_sidebar_list {
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between; /* 余白を均等配分し、高さに応じて自動で詰める/広げる */
  gap: 0;
  width: 100%;
}

.disclosure_sidebar_link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40rem;
  height: 3.7rem;
  color: #09112C;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: normal;
  letter-spacing: 0;
  background: transparent;
  border-radius: 4.2rem;
  transition: color 0.2s ease, background 0.2s ease;
}

.disclosure_sidebar_link.is_active,
.disclosure_sidebar_link:hover {
  color: #fff;
  background: linear-gradient(90deg, #0282C1 0%, #99D0E5 100%);
}

.disclosure_main {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  width: 53.8rem;
}

.disclosure_section {
  width: 53.8rem;
  padding: 4rem;
  background: #fff;
  border: 0.1rem solid #0282C1;
  border-radius: 1.6rem;
  scroll-margin-top: 12rem;
}

.disclosure_section_header {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  min-height: 5rem;
  margin-bottom: 2.8rem;
}

.disclosure_section_no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 5rem;
  height: 5rem;
  color: #fff;
  background: #0282C1;
  border-radius: 1rem;
  font-size: 3.4rem;
  font-weight: 700;
  line-height: 1;
}

.disclosure_section_title {
  color: #0282C1;
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0;
}

.disclosure_cards {
  display: flex;
  flex-direction: column;
  gap: 2.4rem;
  width: 45.1rem;
}

.disclosure_doc_card,
.disclosure_accordion {
  width: 45.1rem;
}

.disclosure_doc_card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 11.4rem;
  padding: 1.6rem 2.4rem;
  color: #2B4A7F;
  background: #D1F4FF;
  border-radius: 1.6rem;
}

.disclosure_doc_card_link {
  cursor: pointer;
}

.disclosure_doc_head {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  width: 40.3rem;
  min-height: 4.4rem;
}

.disclosure_doc_title,
.disclosure_accordion_title {
  color: #2B4A7F;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  text-wrap: nowrap;
}

.disclosure_doc_rule {
  display: block;
  width: 40.3rem;
  height: 0.1rem;
  margin: 0.3rem 0;
  background: rgba(43, 74, 127, 0.55);
}

.disclosure_open_text {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  width: 40.3rem;
  min-height: 3.2rem;
  color: #2B4A7F;
  font-size: 1.6rem;
  font-weight: 700;
}

.disclosure_open_label {
  display: inline-flex;
  align-items: center;
  width: 5.8839rem;
  height: 1.9rem;
  line-height: normal;
}

.disclosure_chevron {
  display: inline-block;
  flex: 0 0 3.2rem;
  width: 3.2rem;
  height: 3.2rem;
  background: url("../img/disclosure_img/fe-arrow-down.svg") center / contain no-repeat;
  transform: rotate(-90deg);
}

.disclosure_summary_chevron {
  display: inline-block;
  width: 1.4rem;
  height: 1.4rem;
  border-right: 0.35rem solid #0282C1;
  border-bottom: 0.35rem solid #0282C1;
}

.disclosure_summary_chevron {
  flex: 0 0 auto;
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.disclosure_accordion.is-open > .disclosure_accordion_summary .disclosure_summary_chevron,
.disclosure_inner_accordion.is-open > .disclosure_inner_summary .disclosure_summary_chevron,
.disclosure_sp_nav.is_open .disclosure_sp_nav_button .disclosure_summary_chevron {
  transform: rotate(225deg);
}

.disclosure_accordion {
  overflow: hidden;
  background: #fff;
  border: 0.1rem solid #D1F4FF;
  border-radius: 1.6rem;
}

.disclosure_accordion_summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 11.3rem;
  padding: 1.6rem 2.4rem;
  color: #2B4A7F;
  background: #D1F4FF;
  border: 0;
  font-family: inherit;
  text-align: left;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.disclosure_accordion_summary::-webkit-details-marker,
.disclosure_inner_summary::-webkit-details-marker {
  display: none;
}

.disclosure_accordion_summary::marker,
.disclosure_inner_summary::marker {
  content: "";
}

/* アコーディオン開閉アニメーション。
   中身は *_inner（overflow:hidden）に入れ、余白も *_inner に持たせる。
   閉じている間は高さ・上下余白を 0 にする（JS無効でも閉じて見える）。
   開閉時の高さ/余白アニメーションは JS（Web Animations）が担当する。 */
.disclosure_accordion_panel_inner,
.disclosure_inner_panel_inner {
  overflow: hidden;
}

.disclosure_accordion_panel_inner {
  padding: 1.6rem 2.4rem 2.7rem;
}

.disclosure_inner_panel_inner {
  padding: 1.6rem 0 1.6rem;
}

.disclosure_accordion:not(.is-open) > .disclosure_accordion_panel > .disclosure_accordion_panel_inner,
.disclosure_inner_accordion:not(.is-open) > .disclosure_inner_panel > .disclosure_inner_panel_inner {
  height: 0;
  padding-top: 0;
  padding-bottom: 0;
}

.disclosure_pdf_list,
.disclosure_inner_panel_inner {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.disclosure_pdf_row {
  display: flex;
  align-items: flex-start;
  gap: 1.6rem;
  width: 40.3rem;
  min-height: 5.1rem;
  padding-bottom: 1.6rem;
  color: #2B4A7F;
  border-bottom: 0.1rem solid #E2E2E2;
}

.disclosure_pdf_row:last-child {
  border-bottom: 0;
}

.disclosure_pdf_label {
  display: block;
  padding-top: 0.55rem;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  text-wrap: nowrap;
}

.disclosure_inner_accordion {
  width: 40.3rem;
  border-bottom: 0.1rem solid #E2E2E2;
}

.disclosure_inner_accordion:last-child {
  border-bottom: 0;
}

.disclosure_inner_summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 4rem;
  color: #2B4A7F;
  font-size: 1.6rem;
  font-weight: 700;
  background: transparent;
  border: 0;
  font-family: inherit;
  text-align: left;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.disclosure_inner_panel .disclosure_pdf_row {
  min-height: 5.344rem;
  padding: 0.5rem 1rem;
  background: rgba(209, 244, 255, 0.45);
  border-bottom: 0;
  border-radius: 0.4rem;
}

.disclosure_inner_panel .disclosure_pdf_label {
  padding-top: 1.2rem;
  font-size: 1.6rem;
}

.disclosure_inner_panel .disclosure_pdf_icon {
  width: 3.792rem;
  height: 4.344rem;
}

.disclosure_pdf_icon {
  flex: 0 0 auto;
  display: block;
  width: 3.8rem;
  height: 4.4rem;
  object-fit: fill;
}

.is_disabled {
  opacity: 0.55;
  cursor: default;
}

.disclosure_sp_nav {
  display: none;
}

.disclosure_layout :where(a, summary, button):focus-visible,
.disclosure_sp_nav :where(a, button):focus-visible {
  outline: 0.3rem solid #FFB000;
  outline-offset: 0.35rem;
}

@media screen and (max-width:699.98px) {
  .pc_only {
    display: none;
  }

  .sp_only {
    display: block;
  }

  .main {
    padding-top: 14.3rem;
  }

  .mainvisual {
    display: none;
  }

  .title {
    width: auto;
    height: auto;
    padding-top: 0;
    margin-bottom: 7rem;
    font-size: 3.2rem;
    letter-spacing: 0;
  }

  .maintitle_wrap {
    display: block;
    margin-bottom: 0;
  }

  .date {
    padding-bottom: 12rem;
  }

  .date_text {
    margin-bottom: 3rem;
    margin-left: 1rem;
    color: #0282C1;
    font-size: 1.6rem;
    letter-spacing: 0.14rem;
  }

  .date_top_img,
  .date_center_img,
  .date_bottom_img {
    display: none;
  }

  .disclosure_layout {
    display: block;
    padding: 0 1rem 7rem;
  }

  .disclosure_sidebar {
    display: none;
  }

  .disclosure_main {
    width: 100%;
    gap: 2rem;
  }

  .disclosure_section {
    width: 100%;
    padding: 2.4rem;
    border-radius: 0.8rem;
    scroll-margin-top: 9rem;
  }

  .disclosure_section_header {
    gap: 1.2rem;
    min-height: 3.4rem;
    margin-bottom: 1.8rem;
  }

  .disclosure_section_no {
    width: 3.2rem;
    height: 3.2rem;
    border-radius: 0.6rem;
    font-size: 2.2rem;
  }

  .disclosure_section_title {
    font-size: 1.8rem;
  }

  .disclosure_cards,
  .disclosure_doc_card,
  .disclosure_accordion {
    width: 100%;
  }

  .disclosure_cards {
    gap: 1.6rem;
  }

  .disclosure_doc_card {
    min-height: 7.4rem;
    padding: 1.2rem 1.6rem;
    border-radius: 0.9rem;
  }

  .disclosure_doc_head {
    width: 100%;
    min-height: 3.4rem;
    gap: 1.2rem;
  }

  .disclosure_doc_title,
  .disclosure_accordion_title,
  .disclosure_pdf_label {
    font-size: 1.4rem;
  }

  .disclosure_doc_rule {
    width: 100%;
    margin: 0.2rem 0;
  }

  .disclosure_open_text {
    width: 100%;
    min-height: 2.2rem;
    font-size: 1.2rem;
  }

  .disclosure_open_label {
    width: 4rem;
    height: 1.6rem;
  }

  .disclosure_pdf_icon {
    width: 2rem;
    height: 2.4rem;
  }

  .disclosure_accordion {
    border-radius: 0.9rem;
  }

  .disclosure_accordion_summary {
    min-height: 7.4rem;
    padding: 1.6rem;
    border-radius: 0.9rem;
  }

  .disclosure_accordion.is-open > .disclosure_accordion_summary {
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
  }

  .disclosure_accordion_panel_inner {
    padding: 1.2rem 1.6rem;
  }

  .disclosure_pdf_list,
  .disclosure_inner_panel_inner {
    gap: 1.1rem;
  }

  .disclosure_pdf_row,
  .disclosure_inner_accordion {
    width: 100%;
  }

  .disclosure_pdf_row {
    min-height: 4.4rem;
    gap: 1.2rem;
    padding-bottom: 1.1rem;
  }

  .disclosure_pdf_label {
    padding-top: 0.3rem;
  }

  .disclosure_inner_summary {
    min-height: 3.8rem;
    font-size: 1.3rem;
  }

  .disclosure_inner_panel_inner {
    padding: 1rem 0;
  }

  .disclosure_inner_panel .disclosure_pdf_row {
    min-height: 4rem;
    padding: 0.8rem;
  }

  .disclosure_inner_panel .disclosure_pdf_icon {
    width: 2rem;
    height: 2.4rem;
  }

  .disclosure_inner_panel .disclosure_pdf_label {
    padding-top: 0.3rem;
    font-size: 1.2rem;
  }

  .disclosure_summary_chevron {
    width: 1rem;
    height: 1rem;
    border-right-width: 0.25rem;
    border-bottom-width: 0.25rem;
  }

  .disclosure_chevron {
    flex-basis: 2.2rem;
    width: 2.2rem;
    height: 2.2rem;
  }

  .disclosure_sp_nav {
    position: fixed;
    z-index: 1000;
    right: 1rem;
    bottom: 1rem;
    left: 1rem;
    display: block;
    overflow: hidden;
    background: #fff;
    border: 0.1rem solid #0282C1;
    border-radius: 1.2rem;
    box-shadow: 0 0.6rem 2rem rgba(9, 17, 44, 0.16);
  }

  .disclosure_sp_nav_button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 5.2rem;
    padding: 0 1.8rem;
    color: #fff;
    background: #0282C1;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: left;
  }

  .disclosure_sp_nav_button .disclosure_summary_chevron {
    border-color: #fff;
  }

  .disclosure_sp_nav_panel {
    max-height: 45vh;
    overflow-y: auto;
    padding: 0.8rem;
  }

  .disclosure_sp_nav_link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    min-height: 4.2rem;
    padding: 0 1rem;
    color: #2B4A7F;
    font-size: 1.3rem;
    font-weight: 700;
    border-radius: 0.8rem;
  }

  .disclosure_sp_nav_link span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.6rem;
    height: 2.6rem;
    color: #fff;
    background: #0282C1;
    border-radius: 0.5rem;
    font-size: 1.3rem;
  }

  .disclosure_sp_nav_link.is_active {
    background: #D1F4FF;
  }
}