.spDb {
  display: none
}
@media screen and (max-width: 768px) {
  .spDb {
    display: block;
  }
}
.pcDb {
  display: block;
}
@media screen and (max-width: 768px) {
  .pcDb {
    display: none;
  }
}

.un_bm_strengths .ly_main { margin-top: 147px; }
@media screen and (max-width: 768px) {
  .un_bm_strengths .ly_main { margin-top: 72px; }
}


/* FV */
.strengths_fv {
    width: 100%;
    height: 390px;
    background: url(/images/building-materials/strengths/fv.jpg) no-repeat center center / cover;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  @media screen and (max-width: 768px) {
    .strengths_fv {
      background: url(/images/building-materials/strengths/fvSp.jpg) no-repeat center center / cover;
    }
}
.strengths_fv_ttl {
    color: #fff;
    font-size: 46px;
    letter-spacing: 0.04em;
}
@media screen and (max-width: 768px) {
  .strengths_fv_ttl {
    font-size: 30px;
  }
}


/* strengths_summary */
.strengths_summary {
    padding: 100px 20px 86px;
}
.strengths_inner {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
}
.strengths_summary_head {
    color: #858585;
    font-size: 16px;
    letter-spacing: 0.04em;
    text-align: center;
    margin-bottom: 47px;
}

.strengths_summary_ttl {
    font-size: 38px;
    font-weight: 500;
    letter-spacing: 0.04em;
    line-height: 1.35;
    text-align: center;
    margin-bottom: 30px;
}

.strengths_summary_txt {
  font-size: 20px;
  letter-spacing: 0.04em;
  line-height: 2.2;
  text-align: center;
}

.strengths_development {
  background: #e4f7ff;
  text-align: center;
  padding: 105px 20px 40px;
}
.strengths_development_ttl {
  font-size: 30px;
  font-weight: 500;
  display: inline-block;
  border: 2px solid #000;
  border-radius: 50px;
  padding: 18px 63px;
  letter-spacing: 0.04em;
}
.strengths_development_fig {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
}

.strengths_process {
  padding: 80px 20px 105px;
  /* 方眼紙模様に必須のスタイル */
  /* background-image: linear-gradient(0deg, transparent calc(100% - 1px), #f0f0f0 calc(100% - 1px)),
                    linear-gradient(90deg, transparent calc(100% - 1px), #f0f0f0 calc(100% - 1px)); */
  background-size: 16px 16px;
  background-repeat: repeat;
  background-position: center center;
}
.strengths_process_ttl {
  font-size: 38px;
  font-weight: 500;
  text-align: center;
  letter-spacing: 0.04em;
}
.strengths_process_fig {
  margin: 89px auto 0;
  width: 100%;
  max-width: 1090px;
}

/* strengths_list */
.strengths_list {

}
.strengths_list_item:nth-child(odd) {
  background: #fbf6f6;
}
.strengths_list_item_inner {
  display: flex;
  width: 100%;
  max-width: 1415px;
  padding: 124px 20px 100px;
  margin: 0 auto;
  gap: 8.7%;
}
.strengths_list_item:nth-child(odd) .strengths_list_item_inner {
  flex-direction: row-reverse;
}
.strengths_list_item:nth-child(4) .strengths_list_item_inner {
  align-items: center;
}
.strengths_list_item:nth-child(5) .strengths_list_item_inner {
  padding-bottom: 60px;
}
.strengths_list_item_inner.figlist {
  gap: 26px;
  flex-direction: row !important;
  padding: 0 20px 100px !important;
}
.strengths_list_item_fig_list {
  width: calc((100% -52px) / 3);
}
.strengths_list_item_content {
  width: 38.3%;
  padding-top: 0;
}
.strengths_list_item_num {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  background: #288acb;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding-bottom: 4px;
}
.strengths_list_item_ttl {
  margin-top: 17px;
  font-size: 38px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.strengths_list_item_subttl {
  margin-top: 45px;
  font-weight: 500;
  letter-spacing: 0.04em;
  font-size: 30px;
}
.strengths_list_item_txt {
  margin-top: 24px;
  font-size: 20px;
  line-height: 2;
  letter-spacing: 0.04em;
}
.strengths_list_item_fig {
  width: 53%;
}
.strengths_list_item_fig_content {
  width: 53%;
  display: flex;
  align-items: center;
}
.strengths_list_item_fig_content.strengths_list_item_fig_content--col {
  display: block;
}
.strengths_list_item_fig_content .strengths_list_item_fig {
  width: 100%;
}
.strengths_list_item_fig_content .strengths_list_item_fig:nth-child(2) {
  margin-top: 35px;
}
.strengths_list_item_fig_cap {
  margin-top: 9px;
  font-size: 16px;
  font-weight: 500;
  color: #757575;
  letter-spacing: 0.04em;
}

/*  building_catalog  */
.building_catalog {
  background-color: #EDEDED;
  padding: 80px 0;
}
.building_catalog.spDb {
  display: none;
}
@media screen and (max-width: 768px) {
  .building_catalog {
    background-color: #EDEDED;
    padding: 45px 0 60px;
  }
  .building_catalog.pdDb {
    display: none;
  }
  .building_catalog.spDb {
    display: block;
  }
}
.building_catalog_inner {
  margin: 0 auto;
  max-width: 736px;
}
@media screen and (max-width: 768px) {
  .building_catalog_inner {
    padding: 0 20px;
    max-width: none;
  }
}
.building_catalog_block {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media screen and (max-width: 768px) {
  .building_catalog_block {
    display: block;
  }
}
.building_catalog_image {
  width: 190px;
}
@media screen and (max-width: 768px) {
  .building_catalog_image {
    margin: 0 auto;
  }
}
.design_catalog_writing {

}
.design_catalog_ttl-en {
  color: #282828;
  opacity: 0.6;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 2.3;
}

@media screen and (max-width: 768px) {
  .design_catalog_ttl-en {
    font-size: 14px;
    text-align: center;
  }
}

.design_catalog_ttl-jp {
  font-size: 38px;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: 58px;
}
@media screen and (max-width: 768px) {
  .design_catalog_ttl-jp {
    font-size: 26px;
    text-align: center;
    margin-bottom: 30px;
  }
}
.design_catalog_ttl-jp span {
  font-size: 30px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.building_catalog .chemicals-linkArea {
  margin-top: 58px;
  font-weight: 500;
  font-size: 24px;
}

/* -----------------------------------------------
   Responsive — 768px (SP)
----------------------------------------------- */
@media screen and (max-width: 768px) {
  .design_catalog_ttl-jp span {
    font-size: 16px;
  }
  .building_catalog .chemicals-linkArea {
    margin-top: 50px;
    font-size: 18px;
  }
  .building_category_block.building_category_block02.spDb {
    margin-bottom: 0;
  }
  .strengths_summary {
    padding: 63px 20px 75px;
    font-size: 12px;
  }
  .strengths_summary_ttl {
    font-size: 22px;
    margin-bottom: 40px;
    line-height: 1.5;
  }
  .strengths_summary_txt {
    font-size: 16px;
    padding: 0 10px;
    line-height: 2;
  }
  .strengths_development {
    padding: 60px 20px 75px;
  }
  .strengths_development_ttl {
    font-size: 20px;
    padding: 13px 53px;
  }
  .strengths_process {
    padding: 60px 20px 30px;
    background-image: none;
  }
  .strengths_process_ttl {
    font-size: 26px;
  }
  .strengths_process_fig {
    margin-top: 25px;
  }
  .strengths_list_item_inner {
    padding: 45px 20px 60px;
    display: block;
  }
  .strengths_list_item_content {
    width: 100%;
    padding-top: 0;
  }
  .strengths_list_item_num {
    margin: auto;
  }
  .strengths_list_item_ttl {
    margin-top: 27px;
    font-size: 22px;
    text-align: center;
  }
  .strengths_list_item_subttl {
    font-size: 18px;
    margin-top: 33px;
    line-height: 1.56;
  }
  .strengths_list_item_subttl.margin {
    margin-left: -5px;
    margin-right: -5px;
    letter-spacing: 0.01em;
  }
  .strengths_list_item_txt {
    font-size: 14px;
    margin-top: 13px;
  }
  .strengths_list_item_fig {
    width: 100%;
    margin-top: 25px;
  }
  .strengths_list_item_fig_content {
    width: 100%;
  }
  .strengths_list_item_fig {
    margin-top: 25px;
  }
  .strengths_list_item_fig_cap {
    font-size: 14px;
    margin-top: 12px;
    text-align: center;
    margin-right: -5px;
    margin-left: -5px;
  }
  .strengths_list_item_fig_content .strengths_list_item_fig:nth-child(2) {
    margin-top: 31px;
  }
  .strengths_list_item_inner.figlist {
    padding-bottom: 60px !important;
  }
  .strengths_list_item_fig_list {
    margin-top: 28px;
  }
  .strengths_fv {
    height: 400px;
  }
  .strengths_summary_head {
    font-size: 12px;
    margin-bottom: 14px;
  }
  .strengths_development_fig {
    margin-top: 39px;
  }
  .strengths_list_item:nth-child(5) .strengths_list_item_inner {
    padding-bottom: 0;
  }
}