#index.sdgs .c-page-title {
    /* 字面の左右余白を揃える。理由は sp/common.css の .c-page-title を参照 */
    --page-title-heading-padding-end: 0.11rem;
  --page-title-main-lsb: 0.142em; /* 1文字目 S の左サイドベアリング */
    --page-title-notch-x: 1.25rem;
    --page-title-main-top: -0.01rem;
    --page-title-divider-margin-start: 0.08rem;
    --page-title-divider-margin-end: 0.08rem;
  }

  #index.sdgs .section {
    padding: 0.24rem 0;
    overflow-x: clip;
    background: var(--color-primary);
  }

  #index.sdgs .c-edge-frame {
    --edge-frame-gap: 0.11rem;
    --edge-frame-cut: 0.03rem;
  }

  #index.sdgs .panel {
    --beveled-cut: 0.03rem;
    flex: 0 0 auto;
    width: 3.29rem;
    padding: 0.24rem 0.23rem;
    background: var(--color-white);
  }

  #index.sdgs .grid {
    display: flex;
    grid-template-columns: repeat(3, 2.92rem);
    align-items: start;
    column-gap: 0.52rem;
    row-gap: 0.4rem;
    flex-direction: column;
    gap: 0.04rem;
  }

  #index.sdgs .card {
    --beveled-cut: 0.03rem;
    min-width: 0;
    color: var(--color-primary);
    display: block;
    width: 100%;
    overflow: hidden;
    background: var(--color-surface-light);
    clip-path: polygon(var(--beveled-cut) 0, calc(100% - var(--beveled-cut)) 0, 100% var(--beveled-cut), 100% calc(100% - var(--beveled-cut)), calc(100% - var(--beveled-cut)) 100%, var(--beveled-cut) 100%, 0 calc(100% - var(--beveled-cut)), 0 var(--beveled-cut));
  }

  #index.sdgs .card__summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 0.64rem;
    margin: 0;
    padding: 0.12rem 0.18rem;
    cursor: pointer;
  }

  #index.sdgs .card__summary::-webkit-details-marker {
    display: none;
  }

  #index.sdgs .card__title {
    display: block;
    font-family: var(--font-family-base);
    font-size: 0.16rem;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: 0.02em;
    padding-right: 0.12rem;
  }

  #index.sdgs .card__chevron {
    display: block;
    flex-shrink: 0;
    width: 0.09rem;
    height: 0.09rem;
    margin-right: 0.01rem;
    border-right: 0.02rem solid var(--color-primary);
    border-bottom: 0.02rem solid var(--color-primary);
    transform: rotate(45deg) translate(-0.02rem, -0.02rem);
    transition: transform 0.2s ease;
  }

  #index.sdgs .card__content {
    display: block;
    overflow: hidden;
    padding-bottom: 0.02rem;
  }

  #index.sdgs .card__media {
    --beveled-cut: 0.03rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: calc(100% - 0.16rem);
    height: auto;
    overflow: hidden;
    background: var(--color-surface-form);
    clip-path: polygon(
    var(--beveled-cut) 0,
    calc(100% - var(--beveled-cut)) 0,
    100% var(--beveled-cut),
    100% calc(100% - var(--beveled-cut)),
    calc(100% - var(--beveled-cut)) 100%,
    var(--beveled-cut) 100%,
    0 calc(100% - var(--beveled-cut)),
    0 var(--beveled-cut)
  );
    aspect-ratio: 4 / 3; /* 支給画像 584×438（4:3）の比率 */
    margin: 0 0.08rem;
  }

  #index.sdgs .card__heading {
    margin: 0.2rem 0 0;
    font-family: var(--font-family-base);
    font-size: 0.19rem;
    font-weight: 600;
    line-height: 1.55;
    letter-spacing: 0.02em;
    display: none;
  }

  #index.sdgs .card__media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  #index.sdgs .card__desc {
    margin: 0;
    font-family: var(--font-family-base);
    font-size: 0.15rem;
    line-height: 1.85;
    letter-spacing: 0.08em;
    padding: 0.16rem 0.18rem 0.18rem;
  }

  #index.sdgs .card[open]:not(.is-closing) .card__chevron {
    transform: rotate(225deg) translate(-0.01rem, -0.01rem);
  }

  #index.sdgs .main + .c-site-footer {
    margin-top: 0.24rem;
  }