/* custom properties */
:root {
  --color-primary: #009b94;
  --color-secondary: #004097;
  --color-link: #193342;
  --color-hover: #009b94;
  --color-white: #fff;
  --color-black: #000;
  --color-gray: #666;
  --color-lightgray: #999;
  --color-lightgray2: #ccc;
  --color-lightgray3: #e4e4e4;
  --color-maintext: #193342;
  --color-subtext: #333;
  --color-bg01: #F3F7FA;
  --color-bg02: #e4f2f2;
  --color-bg03: #BDE5E3;
  --color-bg04: #e8fffe;
  --font-family-sans-serif: YakuHanJPs, Arial, "Helvetica Neue", "Noto Sans JP", sans-serif;
  --font-family-font-awesome: "Font Awesome 5 Free"; }

.block_notice,
.block_topics {
  max-width: 74rem;
  margin: auto;
  font-size: clamp(1.4rem, 1.327rem + 0.36vw, 1.6rem); }

.block_notice {
  margin-bottom: 5em; }

.block_title {
  margin: 2rem 0 1rem;
  font-size: clamp(1.8rem, 1.727rem + 0.36vw, 2rem);
  font-weight: 700; }

.notice_message {
  margin: 2rem 0;
  font-weight: 700; }

.list_num {
  margin: 1em 0 0 1em; }
  .list_num > li {
    list-style: decimal; }

.note {
  font-size: clamp(1.2rem, 1.127rem + 0.36vw, 1.4rem); }
  .note dd {
    margin-bottom: 1rem; }

.dl_notice {
  margin: 2rem 0;
  padding: 2rem;
  border: 1px solid var(--color-lightgray2); }
  .dl_notice dt {
    margin-bottom: 1rem;
    font-weight: 700; }
    .dl_notice dt small {
      display: inline-block;
      font-weight: 400; }

.block_topics {
  max-width: 74rem;
  margin: auto; }
  .block_topics .topics_date {
    margin-bottom: 1rem;
    text-align: right; }
  .block_topics .dl_01 {
    display: flex;
    flex-wrap: wrap;
    margin: 2rem 0; }
    .block_topics .dl_01 dt {
      width: 12em;
      font-weight: 700; }
    .block_topics .dl_01 dd {
      width: calc(100% - 12em); }
  .block_topics .topics_main_img {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    margin: 2rem 0; }
    @media screen and (max-width: 767px) {
      .block_topics .topics_main_img {
        display: block; } }
    .block_topics .topics_main_img > li {
      width: calc((100% - 2rem) / 2); }
      @media screen and (max-width: 767px) {
        .block_topics .topics_main_img > li {
          width: 100%; } }
    .block_topics .topics_main_img.single {
      display: block; }
      .block_topics .topics_main_img.single > li {
        width: 100%; }
        @media screen and (max-width: 767px) {
          .block_topics .topics_main_img.single > li {
            width: 100%; } }
        .block_topics .topics_main_img.single > li img {
          width: auto;
          margin: auto; }
  .block_topics .topics_img_list {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin: 2rem 0; }
    .block_topics .topics_img_list > li {
      width: calc((100% - 6rem) / 4); }
      @media screen and (max-width: 767px) {
        .block_topics .topics_img_list > li {
          width: calc((100% - 2rem) / 2); } }
      .block_topics .topics_img_list > li img {
        border: 1px solid var(--color-lightgray2); }
  .block_topics .topics_detail {
    margin: 4rem 0; }
    .block_topics .topics_detail .topics_img {
      margin: 2rem 0; }
      .block_topics .topics_detail .topics_img img {
        width: auto;
        margin: auto; }
    .block_topics .topics_detail.columns {
      display: flex;
      justify-content: space-between;
      column-gap: 3rem; }
      @media screen and (max-width: 767px) {
        .block_topics .topics_detail.columns {
          display: block; } }
      .block_topics .topics_detail.columns .topics_txt {
        width: calc((100% - 40%) - 3rem); }
        @media screen and (max-width: 767px) {
          .block_topics .topics_detail.columns .topics_txt {
            width: 100%; } }
      .block_topics .topics_detail.columns .topics_img {
        width: 40%;
        margin: 0; }
        @media screen and (max-width: 767px) {
          .block_topics .topics_detail.columns .topics_img {
            width: 100%;
            margin-top: 2rem; } }
    .block_topics .topics_detail .topics_detail_title {
      margin: 2rem 0;
      font-size: clamp(2rem, 1.927rem + 0.36vw, 2.2rem);
      font-weight: 700; }
    .block_topics .topics_detail .topics_detail_2nd_title {
      margin: 2rem 0;
      font-weight: 700;
      text-align: center; }