@-webkit-keyframes arrow_anim {
  0% {
    left: 0;
    opacity: 0;
  }
  30% {
    left: calc(50% - 2.5px);
    opacity: 1;
  }
  100% {
    left: calc(50% - 2.5px);
    opacity: 1;
  }
}
@keyframes arrow_anim {
  0% {
    left: 0;
    opacity: 0;
  }
  30% {
    left: calc(50% - 2.5px);
    opacity: 1;
  }
  100% {
    left: calc(50% - 2.5px);
    opacity: 1;
  }
}
@media screen and (min-width: 768px) {
  .gnav_cases a::before {
    content: "";
  }
}
#cases {
  counter-reset: num 0;
}
@media all and (max-width: 767px) {
  #cases .contents .b_kv {
    background-image: url("../../assets/img/cases/cases_img_01_sp.jpg");
    height: 262px;
    margin-right: 0;
  }
  #cases .contents .b_kv.has_angle .__angle_tr {
    border-top-color: transparent;
    border-right-color: transparent;
  }
  #cases .contents .b_kv.has_angle .__angle_br {
    border-bottom-color: transparent;
    border-right-color: transparent;
  }
}
@media screen and (max-width: 374px) {
  #cases .contents .b_kv {
    margin-bottom: 53.3333333333vw;
  }
}
@media screen and (min-width: 768px) {
  #cases .contents .b_kv {
    margin-bottom: 150px;
    background-image: url("../../assets/img/cases/cases_img_01.jpg");
  }
}
#cases .contents .contact_box .cbox_title {
  width: 100%;
  background-color: #043871;
  color: #fff;
  text-align: center;
  height: 54px;
  line-height: 54px;
  margin-bottom: 0;
}
#cases .contents .contact_box .cbox_txt {
  color: #3b648f;
  font-weight: 500;
  line-height: 26px;
  font-size: 18px;
}
#cases .contents .contact_box .cbox_txt span {
  font-weight: 700;
}
#cases .contents .contact_box .cbox_btn {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin: 27px auto;
}
#cases .contents .contact_box .cbox_btn a {
  width: 180px;
  text-align: center;
  font-weight: 500;
  font-size: 18px;
  border-radius: 5px;
}
@media all and (max-width: 767px) {
  #cases .contents .pc {
    display: none;
  }
  #cases .contents .contact_box {
    border: 1px solid #1f4166;
    margin: 97px auto 0;
    width: 90%;
  }
  #cases .contents .contact_box .cbox_txt {
    font-size: 16px;
    padding: 22px 8px 0px;
  }
  #cases .contents .contact_box .cbox_title {
    font-weight: 700;
    font-size: 16px;
  }
  #cases .contents .cbox_img {
    width: 265px;
    height: 161px;
    margin: 40px auto 25px;
    overflow: hidden;
  }
  #cases .contents .cbox_img img {
    display: block;
    width: 100%;
    height: auto;
    -o-object-fit: cover;
       object-fit: cover;
    -o-object-position: center;
       object-position: center;
  }
}
@media screen and (min-width: 768px) {
  #cases .contents .sp {
    display: none;
  }
  #cases .contents .contact_wrap {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: stretch;
        -ms-flex-align: stretch;
            align-items: stretch;
    gap: 50px;
    margin: 190px 85px 190px 74px;
  }
  #cases .contents .contact_wrap .contact_box {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    border: 1px solid #1f4166;
    min-height: 0;
  }
  #cases .contents .contact_wrap .contact_box .cbox_title {
    font-weight: 700;
    font-size: 20px;
  }
  #cases .contents .contact_wrap .contact_box .cbox_txt {
    font-size: 16px;
    padding: 30px 30px 0px;
  }
  #cases .contents .contact_wrap .contact_box .cbox_txt span {
    font-size: 18px;
  }
  #cases .contents .contact_wrap .contact_box .contact_btn {
    margin: 34px auto 24px;
  }
  #cases .contents .contact_wrap .cbox_img {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    max-width: 438px;
    overflow: hidden;
    min-height: 0;
  }
  #cases .contents .contact_wrap .cbox_img img {
    display: block;
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
    -o-object-position: 15% center;
       object-position: 15% center;
  }
  #cases .contents .contact_wrap .cbox_img.sp {
    display: none;
  }
}
#cases .contents .cases_item .cases_img {
  -webkit-box-flex: 0;
      -ms-flex: 0 0 auto;
          flex: 0 0 auto;
  max-width: 499px;
  max-height: 316px;
  aspect-ratio: 499/316;
  overflow: hidden;
  margin-right: 54px;
}
#cases .contents .cases_item .cases_img img {
  display: block;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  -o-object-position: center;
     object-position: center;
}
#cases .contents .cases_item.b_section_01 {
  padding: 0;
}
#cases .contents .cases_item h3 {
  font-size: 14px;
  margin-bottom: 30px;
}
#cases .contents .cases_item .cases_block {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  margin-top: 8px;
  color: #3b648f;
}
#cases .contents .cases_item .cases_block h2 {
  font-weight: 600;
  margin-bottom: 45px;
  letter-spacing: 0;
}
#cases .contents .cases_item .cases_block h2 i {
  display: block;
  font-size: 34px;
  line-height: 1;
  margin-bottom: 13px;
}
#cases .contents .cases_item .cases_block h2 em {
  display: block;
  border-left: 1px solid #AAB6CB;
  padding-left: 1em;
}
#cases .contents .cases_item .cases_block h3 {
  margin-bottom: 40px;
  font-size: 16px;
  font-weight: 600;
  line-height: 2;
}
#cases .contents .cases_item .cases_block_case {
  line-height: 2.2;
}
#cases .contents .cases_item .cases_block_case h4 {
  font-weight: 600;
  line-height: inherit;
}
#cases .contents .cases_item .cases_block h3 {
  font-size: 13px;
}
@media all and (max-width: 767px) {
  #cases .contents .cases_item {
    margin: 97px auto;
    width: 89%;
  }
  #cases .contents .cases_item .cases_img {
    max-width: 100%;
    margin: auto;
    overflow: hidden;
  }
  #cases .contents .cases_item .cases_block {
    color: #3b648f;
    font-weight: 500;
    font-size: 14px;
    line-height: 23px;
  }
  #cases .contents .cases_item .cases_block h2 {
    margin-bottom: 36px;
  }
  #cases .contents .cases_item .cases_block h2 i {
    font-weight: 700;
    font-size: 20px;
    line-height: 24px;
    letter-spacing: 0%;
    margin-top: 36px;
  }
  #cases .contents .cases_item .cases_block h2 em {
    display: block;
    border-left: 1px solid #AAB6CB;
    padding-left: 1em;
  }
  #cases .contents .cases_item .cases_block h3 {
    margin-bottom: 40px;
    font-weight: 700;
    font-size: 16px;
    line-height: 19.2px;
  }
}
@media screen and (min-width: 768px) {
  #cases .contents .cases_item {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
    margin: 190px 85px 190px 74px;
  }
  #cases .contents .cases_item.b_section_01 {
    padding: 0;
  }
  #cases .contents .cases_item h2 {
    margin-bottom: 35px;
  }
  #cases .contents .cases_item h2::before {
    font-size: 20px;
    margin-bottom: 15px;
  }
  #cases .contents .cases_item h2 i {
    font-size: 24px;
    margin-bottom: 10px;
  }
  #cases .contents .cases_item h2 em {
    font-size: 13px;
  }
  #cases .contents .cases_item h3 {
    margin-bottom: 40px;
    font-weight: 700;
    font-size: 18px;
    line-height: 21.6px;
    letter-spacing: 0%;
  }
  #cases .contents .cases_item .cases_block {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    margin-top: 8px;
    color: #3b648f;
  }
  #cases .contents .cases_item .cases_block h2 {
    font-weight: 600;
    margin-bottom: 45px;
    letter-spacing: 0;
  }
  #cases .contents .cases_item .cases_block h2 i {
    display: block;
    font-size: 20px;
    line-height: 1;
    margin-bottom: 13px;
  }
  #cases .contents .cases_item .cases_block h2 em {
    display: block;
    border-left: 1px solid #AAB6CB;
    padding-left: 1em;
  }
  #cases .contents .cases_item .cases_block h3 {
    margin-bottom: 40px;
    font-size: 16px;
    font-weight: 600;
    line-height: 2;
  }
}