@charset "utf-8";

.kv_area {
  height: auto;
}
.kv_area .mv_title {
  color: #fff;
}
.kv_area .mv_image.sp {
  display: none;
}
@media screen and (max-width: 750px) {
  .kv_area .mv_title {
    font-size: 6.12vw;
    width: 100%;
  }
  .kv_area .mv_image.sp {
    display: block;
  }
  .kv_area .mv_image.sp img {
    width: 100%;
  }
  .kv_area .mv_image.pc {
    display: none;
  }
  .kv_area .mv_title span {
    font-size: 3.456vw;
    padding-top: 2vw;
  }
}

.research-development p {
  font-size: 1.6em;
}

.research-development__heading {
  color: #002e66;
  font-size: 4em;
  font-weight: bold;
  margin-bottom: 1em;
  text-align: center;
}
@media screen and (max-width: 750px) {
  .research-development__heading {
    font-size: 2.25em;
  }
}

.research-development__section1 {
  display: flex;
  justify-content: space-between;
  margin: 0 auto 64px;
  max-width: 1000px;
  width: 94%;
}
@media screen and (max-width: 750px) {
  .research-development__section1 {
    flex-direction: column;
    width: 86.66%;
  }
}
.research-development__section1__col1 {
  width: 50%;
}
@media screen and (max-width: 750px) {
  .research-development__section1__col1 {
    margin-bottom: 24px;
    width: 100%;
  }
}
.research-development__section1__col1 p {
  margin-bottom: 1em;
}
.research-development__section1__col2 {
  text-align: right;
  width: 46.5%;
}
@media screen and (max-width: 750px) {
  .research-development__section1__col2 {
    text-align: center;
    width: 100%;
  }
}

.research-development__section2__header {
  background: url("../images/bg_section2.png") 50% 0% no-repeat;
  background-size: 100% auto;
  padding: 4.92vw 0 96px;
}
@media screen and (max-width: 750px) {
  .research-development__section2__header {
    background-image: url("../images/bg_section2_sp.png");
    padding: 15vw 0 48px;
  }
}
.research-development__section2__header nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  margin: 3.5rem auto 0;
  max-width: 1000px;
  width: 94%;
  align-items: flex-end;
  column-gap: 1.9vw;
}
@media screen and (max-width: 750px) {
  .research-development__section2__header nav ul {
    width: 80%;
    justify-content:space-between;
  }
}
.research-development__section2__header nav li {
  width: 22.2%;
  margin-bottom: 8.5rem;
}
@media screen and (max-width: 750px) {
  .research-development__section2__header nav li {
    width: 41.7%;
    margin-bottom: 2.5rem;
  }
}
.research-development__section2__heading {
  color: #fff;
  font-size: 3.6em;
  font-weight: bold;
  margin-bottom: 0;
  text-align: center;
}
@media screen and (max-width: 750px) {
  .research-development__section2__heading {
    font-size: 2em;
  }
}

.research-development__section3 {
  margin: 0 auto 64px;
  max-width: 1000px;
  width: 94%;
}
@media screen and (max-width: 750px) {
  .research-development__section3 {
    width: 86.66%;
  }
}
.research-development__section3__heading1 {
  font-size: 2.6em;
  font-weight: bold;
  margin-bottom: 24px;
  line-height: 1.15;
  padding-bottom: 10px;
  border-bottom: 1px dotted #bfbfbf;
}
@media screen and (max-width: 750px) {
  .research-development__section3__heading1 {
    font-size: 1.75em;
  }
}
.research-development__section3__heading1 span {
  border-left: 4px solid #002e66;
  display: block;
  padding-left: 24px;
}
@media screen and (max-width: 750px) {
  .research-development__section3__heading1 span {
    padding-left: 12px;
  }
}
.research-development__section3__heading2 {
  font-size: 2.2em;
  font-weight: bold;
  margin-bottom: 16px;
}
@media screen and (max-width: 750px) {
  .research-development__section3__heading2 {
    font-size: 1.66em;
  }
}
.research-development__section3__heading3 {
  color: #32b3ed;
  font-size: 2.2em;
  font-weight: bold;
  margin: 60px 0 16px;
  position: relative;
}
@media screen and (max-width: 750px) {
  .research-development__section3__heading3 {
    font-size: 1.66em;
  }
}
.research-development__section3__heading3::before {
  background: #32b3ed;
  content: "";
  height: 2px;
  left: 0;
  margin-top: -1px;
  position: absolute;
  top: 50%;
  width: 100%;
  z-index: -1;
}
.research-development__section3__heading3 span {
  background: #fff;
  display: inline-block;
  padding-right: 20px;
}
.research-development__section3__heading4 {
  font-size: 1.6em;
  font-weight: bold;
}
p + .research-development__section3__heading4 {
  margin-top: 1em;
}
.research-development__section3__header {
  margin-bottom: 24px;
}
.research-development__section3__cols1 {
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
}
@media screen and (max-width: 750px) {
  .research-development__section3__cols1 {
    align-items: center;
    flex-direction: column;
  }
}
.research-development__section3__cols1__col1 {
  width: 62.5%;
}
@media screen and (max-width: 750px) {
  .research-development__section3__cols1__col1 {
    margin-bottom: 24px;
    width: 100%;
  }
}
.research-development__section3__cols1__col1 span {
  color: #666;
  font-size: 1.4rem;
}
.research-development__section3__cols1__col2 {
  width: 34%;
}
@media screen and (max-width: 750px) {
  .research-development__section3__cols1__col2 {
    text-align: center;
    width: 84%;
  }
  .research-development__section3__cols1__col2 div {
    display: inline-block;
    text-align: left;
  }
}
.research-development__section3__cols1__col2 img {
  box-shadow: 0 0 0 1px #ededed;
}
.research-development__section3__cols1__col2 div + div {
  margin-top: 25px;
}
.research-development__section3__cols1__col2 figcaption {
  font-size: 1.4em;
  padding-top: 4px;
}
.research-development__section3__cols2 {
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
}
@media screen and (max-width: 750px) {
  .research-development__section3__cols2 {
    align-items: center;
    flex-direction: column;
  }
}
.research-development__section3__cols2__col1 {
  width: 50%;
}
@media screen and (max-width: 750px) {
  .research-development__section3__cols2__col1 {
    margin-bottom: 24px;
    width: 100%;
  }
}
.research-development__section3__cols2__col1 span {
  color: #666;
  font-size: 1.4rem;
}
.research-development__section3__cols2__col2 {
  width: 45%;
}
@media screen and (max-width: 750px) {
  .research-development__section3__cols2__col2 {
    text-align: center;
    width: 84%;
  }
  .research-development__section3__cols2__col2 div {
    display: inline-block;
    text-align: left;
  }
}
.research-development__section3__cols2__col2 figure {
  display: flex;
  justify-content: space-between;
}
.research-development__section3__cols2__col2 figure figure {
  width: 220px;
}
@media screen and (max-width: 1000px) {
  .research-development__section3__cols2__col2 figure figure {
    width: 20vw;
  }
}
@media screen and (max-width: 750px) {
  .research-development__section3__cols2__col2 figure figure {
    width: 48%;
  }
}
.research-development__section3__cols2__col2 img {
  box-shadow: 0 0 0 1px #ededed;
}
.research-development__section3__cols2__col2 figcaption {
  font-size: 1.4em;
  padding-top: 4px;
}

.research-development__staff {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
@media screen and (max-width: 750px) {
  .research-development__staff {
    flex-direction: column;
  }
}
.research-development__staff__item {
  display: flex;
  margin-bottom: 4%;
  position: relative;
  width: 48%;
}
@media screen and (max-width: 750px) {
  .research-development__staff__item {
    margin-bottom: 24px;
    width: 100%;
  }
}
.research-development__staff__item figure {
  left: 0;
  position: absolute;
  top: 0;
  width: 132px;
  z-index: 2;
}
.research-development__staff__item figure img {
  width: 100%;
}
@media screen and (max-width: 1000px) {
  .research-development__staff__item figure {
    width: 13.2vw;
  }
}
@media screen and (max-width: 750px) {
  .research-development__staff__item figure {
    width: 29vw;
  }
}
.research-development__staff__item figure::after {
  border: 2px solid #ededed;
  box-sizing: border-box;
  content: "";
  display: block;
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
}
.research-development__staff__item figure img {
  display: block;
}
.research-development__staff__item__content {
  background: #f7f7f7;
  margin: 10px 0 0 auto;
  padding: 16px 32px 24px 104px;
  width: 91.66%;
  z-index: 1;
}
@media screen and (max-width: 1000px) {
  .research-development__staff__item__content {
    margin: 1vw 0 0 auto;
    padding: 1.6vw 3.2vw 2.4vw 10.4vw;
  }
}
@media screen and (max-width: 750px) {
  .research-development__staff__item__content {
    margin: 6vw 0 0 auto;
    padding: 10vw 4vw 4vw 4vw;
    width: 93%;
  }
}
.research-development__staff__item__text1 {
  font-size: 1.4em;
  line-height: 1.2;
  margin-bottom: 8px;
}
@media screen and (max-width: 750px) {
  .research-development__staff__item__text1 {
    font-size: 3.5vw;
    margin-bottom: 2vw;
    padding-left: 26vw;
  }
}
.research-development__staff__item__text2 {
  font-size: 1.8em;
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 8px;
}
@media screen and (max-width: 750px) {
  .research-development__staff__item__text2 {
    font-size: 4.5vw;
    margin-bottom: 8vw;
    padding-left: 26vw;
  }
}
.research-development__staff__item__text3 {
  font-size: 1.4em;
}
@media screen and (max-width: 750px) {
  .research-development__staff__item__text3 {
    font-size: 3.5vw;
  }
}


.other-list .ttl {
  text-align: center;
  margin-bottom: 3.5rem;
  margin-top: 8.0rem;
}
.other-list .ttl span {
  display: block;
}
.other-list .slick {
  padding: 0 6.0rem;
}
.slick .slider__item {
  padding: 0 .5rem;
}
.slick img {
  width: 100%;
}
.slick .slick-prev {
  left: 0;
}
.slick .slick-next {
  right: 0;
}
.slick-next {
  background: url("../images/next.png") no-repeat 0 0;
}
.slick-prev {
  background: url("../images/prev.png") no-repeat 0 0;
}

.slick-next::before, .slick-prev::before {
  content: "";
}

.slick-prev:hover {
  background: url("../images/prev.png") no-repeat 0 0;
}
.slick-next:hover {
  background: url("../images/next.png") no-repeat 0 0;
}
@media screen and (max-width: 750px) {
  .other-list .ttl {
    margin-bottom: 2.5rem;
    margin-top: 3.0rem;
  }
  .other-list .slick {
    padding: 0 3.0rem;
  }

  .slick-next, 
  .slick-prev {
    width: 2.0rem;
    height: 3.0rem;
    background-size: 2.0rem;
  }
  .slick .slider__item {
    padding: 0 .4rem;
  }
}
.research-development__section3__cols1__col1 span.research-development__section3__remark {
  text-indent: -1.4rem;
  display: block;
  padding-left: 1.4rem;

}

.mt-25 {
  margin-top: 25px;
}