@layer pages {

   /* ===== 共通 ===== */
   /* section */
   #arch,
   #info {
      padding-bottom: 130px;
   }

   /* section title */
   .build2-head {
      margin-bottom: 80px;
   }

   .build2-head__ttl {
      font-family: var(--font-family-mincho);
      font-weight: var(--font-weight-semibold);
      font-size: 2.4rem;
      display: flex;
      align-items: flex-end;
      gap: 24px;
      padding-bottom: 20px;
      border-bottom: 1px solid var(--color-mgray);
      position: relative;

      &::after {
         content: "";
         display: inline-block;
         height: 2px;
         width: 77px;
         background: var(--color-main);
         position: absolute;
         bottom: 0;
         left: 0;
      }

      img {
         width: 77px;
      }
   }

   .build2-head__lead {
      margin-top: 2em;

      p {
         line-height: 2;
      }
   }

   /* card */
   .build2-card {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
   }

   .build2-card__item {
      padding: 0 40px;
      position: relative;

      &:not(:nth-child(3n + 1)) {
         border-left: 1px solid var(--color-mgray);
      }

      &:nth-child(n + 4) {
         margin-top: 80px;

         &::after {
            content: "";
            display: inline-block;
            border-top: 1px solid var(--color-mgray);
            position: absolute;
            top: -40px;
            left: 40px;
            right: 40px;
         }
      }
   }

   .build2-card__thumb {
      margin-bottom: 24px;

      img {
         width: 100%;
      }
   }

   .build2-card__ttl {
      font-family: var(--font-family-mincho);
      font-weight: var(--font-weight-semibold);
      font-size: 1.8rem;
      display: flex;
      align-items: center;
      gap: 10px;

      &::before {
         content: "";
         flex-shrink: 0;
         width: 10px;
         height: 10px;
         background: var(--color-main);
      }
   }

   .build2-card__txt {
      margin-top: 20px;

      p {
         margin-bottom: 0;
      }
   }


   @media (max-width: 768px) {

      #arch,
      #info {
         padding-bottom: 20px;
      }

      .build2-head {
         margin-bottom: 40px;
      }

      .build2-head__ttl {
         font-size: 1.8rem;
         padding-bottom: 15px;
         gap: 15px;

         &::after {
            width: 40px;
         }

         img {
            width: 40px;
         }
      }

      /* card */
      .build2-card {
         grid-template-columns: 1fr;
         width: 90%;
         margin: 0 auto;
      }

      .build2-card__item {
         padding-left: 0;
         padding-right: 0;

         &:not(:nth-child(3n + 1)) {
            border-left: none;
         }

         &:nth-child(n + 4) {
            margin-top: 0;

            &::after {
               display: none;
            }
         }

         &:not(:first-child) {
            border-top: 1px solid var(--color-mgray);
            margin-top: 40px;
            padding-top: 40px;
         }
      }

      .build2-card__ttl {
         font-size: 1.6rem;
      }

      .build2-card__thumb {
         margin-bottom: 15px;
      }

      .build2-card__txt {
         margin-top: 12px;
      }
   }


   /* ===== メインビジュアル ===== */
   .build2-fv {
      position: relative;
      background: url("/assets/img/pages/build2/main.webp") no-repeat center/cover;
      aspect-ratio: 2/1;
      padding: 30px 0;
      margin-top: 80px;
      container-type: inline-size;
   }

   .build2-fv__inner {
      width: 90%;
      margin: 0 auto;
   }

   .build2-fv__ttl {
      color: #fff;
      font-family: var(--font-family-mincho);
      font-weight: var(--font-weight-medium);
      font-size: clamp(34px, 5cqw, 64px);

      small {
         font-size: 0.5em;
      }
   }


   /* リード文 */
   .build2-lead {
      padding-bottom: 120px;
   }

   .build2-lead__txt {
      max-width: 620px;
      margin: 0 auto;
      text-align: justify;

      p {
         line-height: 2.4;
         letter-spacing: .07em;
      }
   }

   /* アンカーリンク */
   .build2-anchor {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0 40px;
      margin-top: 80px;
   }

   .build2-anchor__link {
      color: var(--color-text);
      font-family: var(--font-family-mincho);
      font-weight: var(--font-weight-semibold);
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      padding: 20px 0;
      border-bottom: 1px solid var(--color-mgray);

      &::after {
         content: "";
         display: inline-block;
         width: 8px;
         height: 8px;
         border-right: 2px solid var(--color-text);
         border-bottom: 2px solid var(--color-text);
         transform: translate(-50%, -50%) rotate(45deg);
         transition: transform 0.2s;
      }

      &:hover {
         background: #e9edf5;

         .build2__icon::before {
            transform: translate(-50%, -50%) rotate(45deg) translate(2px, 2px);
         }
      }
   }

   @media (max-width: 768px) {
      .build2-fv {
         background-image: url("/assets/img/pages/build2/main-sp.webp");
         aspect-ratio: 1/1;
         padding: 10px 0;
         margin-top: 60px;
      }

      .build2-anchor {
         max-width: 300px;
         grid-template-columns: 1fr;
         margin: 40px auto 0;
      }

      .build2-lead {
         padding-bottom: 60px;
      }
   }


   /* ===== 共用フロア ===== */
   .build2-common__inner {
      background: #f2ece7;
      padding: 110px 0 160px;
   }

   /* タイトル */
   .build2-common__head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 7%;
      padding-bottom: 22px;
      border-bottom: 1px solid var(--color-mgray);
      position: relative;

      &::after {
         content: "";
         position: absolute;
         left: 0;
         bottom: -1px;
         width: 176px;
         height: 3px;
         background: var(--color-main);
      }
   }

   .build2-common__floor {
      font-family: var(--font-family-mincho);
      display: flex;
      align-items: flex-end;
      gap: 24px;
      flex-shrink: 0;
      margin: 0;

      img {
         width: 176px;
         height: auto;
      }
   }

   .build2-common__label {
      font-size: 2.4rem;
      font-weight: var(--font-weight-semibold);
   }

   .build2-common__desc {
      flex: 1;
      font-size: 1.5rem;
      max-width: 500px;

      p {
         line-height: 2.1;
         margin: 0;
      }
   }

   /* 施設紹介 */
   .build2-common__body {
      flex: 1;
      text-align: justify;
      padding: 0 70px;
   }

   .build2-common__thumb {
      width: 55%;

      figcaption {
         text-align: center;
         font-size: 1.4rem;
         margin-top: 1em;
         line-height: 1.5;
      }
   }

   .build2-common__name {
      font-family: var(--font-family-mincho);
      font-size: 4rem;
      margin-bottom: .8em;

      h3 {
         letter-spacing: .1em;
         display: inline-block;
         padding-bottom: 12px;
         border-bottom: 1px solid var(--color-mgray);
         font-weight: var(--font-weight-medium);
         margin-bottom: 0;
      }
   }

   .build2-common__content {
      display: flex;
      align-items: center;
      margin-top: 60px;
      row-gap: 60px;

      &:last-of-type {
         flex-direction: row-reverse;
         margin-top: 30px;

         .build2-common__desc {
            margin-left: auto;
         }
      }
   }


   /* 画像 */
   .build2-common__imgs {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 36px 70px;
      margin-top: 80px;

      img:first-child {
         margin-top: 100px;
      }
   }

   .build2-common__bottom {
      padding: 50px 0 130px;
   }

   @media (max-width: 768px) {
      .build2-common__head {
         flex-direction: column;
         align-items: flex-start;
         gap: 28px;
         padding-bottom: 0;
         border-bottom: none;

         &::after {
            width: 100px;
            top: 47px;
         }
      }

      .build2-common__floor {
         width: 100%;
         padding-bottom: 15px;
         border-bottom: 1px solid var(--color-mgray);

         img {
            width: 100px;
         }
      }

      .build2-common__label {
         font-size: 1.8rem;
      }

      .build2-common__inner {
         padding: 60px 0;
      }

      .build2-common__content {
         flex-direction: column;

         &:last-of-type {
            flex-direction: column-reverse;
            margin-top: 60px;

            .build2-common__thumb {
               width: 90%;
               margin: 0 auto;
            }
         }
      }

      .build2-common__thumb {
         width: 95%;
         margin-right: auto;

         figcaption {
            text-align: left;
         }
      }

      .build2-common__body {
         width: 90%;
         margin: 0 auto;
         padding: 0;
      }

      .build2-common__name {
         font-size: 2.4rem;
      }

      .build2-common__imgs {
         grid-template-columns: 1fr;
         margin-top: 60px;

         img:first-child {
            width: 90%;
            margin-top: 0;
            order: 2;
         }

         img:last-child {
            width: 90%;
            order: 1;
            margin-left: auto;
         }
      }

      .build2-common__bottom {
         padding: 30px 0 20px;
      }
   }


   /* ===== 生物科学科フロア ===== */
   .build2-bio {
      .build2-head__ttl {
         img {
            width: 177px;
         }

         &::after {
            width: 177px;
         }
      }
   }

   .build2-bio__ttl {
      font-size: 2.4rem;
      margin-bottom: 40px;

      h3 {
         letter-spacing: .1em;
         display: inline-block;
         padding-bottom: 12px;
         border-bottom: 1px solid var(--color-mgray);
         margin-bottom: 0;
      }
   }

   /* ギャラリー */
   .build2-bio__gallery {
      display: grid;
      grid-template-columns: 60% auto;
      gap: 3px;
      margin-bottom: 70px;
   }

   .build2-bio__img {
      img {
         width: 100%;
         height: 100%;
         object-fit: cover;
      }

      &:first-child {
         grid-row: span 2;
      }
   }

   /* 専門研究室 */
   .build2-bio__lab {
      .build2-card__item:last-child {
         border-right: 1px solid var(--color-mgray);
      }
   }

   /* その他施設 */
   .build2-bio__else {
      margin: 130px 0 160px;

      .build2-card__item:last-child {
         grid-column: span 2;

         .build2-card__thumb {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 3px;
            width: calc(100% - 77px);
         }
      }
   }

   @media (max-width: 768px) {
      .build2-bio {
         .build2-head__ttl {
            img {
               width: 100px;
            }

            &::after {
               width: 100px;
            }
         }
      }

      .build2-bio__ttl {
         font-size: 1.6rem;
         margin-bottom: 20px;
      }

      .build2-bio__gallery {
         grid-template-columns: repeat(2, 1fr);
         margin-bottom: 40px;
      }

      .build2-bio__img {


         &:first-child {
            grid-row: span 1;
            grid-column: span 2;
         }
      }

      .build2-bio__lab {
         .build2-card__item:last-child {
            border-right: none;
         }
      }

      .build2-bio__else {
         margin: 60px 0 100px;

         .build2-card__item:last-child {
            .build2-card__thumb {
               width: 100%;
               grid-template-columns: 1fr;
            }
         }
      }
   }
}