.c-rd-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #018087;
  height: 40px;
}
@media screen and (max-width: 750px) {
  .c-rd-button {
    height: 50px;
  }
}
.c-rd-button__label {
  color: #018087;
}
.c-rd-button__icon {
  position: absolute;
  right: 5px;
  top: 0;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.c-rd-button__icon--pdf {
  margin-left: 0.4em;
  width: 21px;
  height: 24px;
}
.c-rd-button__icon--pdf svg {
  width: 100%;
  height: 100%;
}
.c-rd-button__icon--arrow::after {
  content: "";
  width: 4px;
  height: 4px;
  border-bottom: 1px solid #018087;
  border-right: 1px solid #018087;
  transform: rotate(-45deg);
}
.c-rd-button__icon--blank::after {
  content: "";
  width: 9px;
  height: 8px;
  background-image: url("../images/company/rd/icon_rd_blank.png");
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
@media (hover) {
  .c-rd-button {
    transition: opacity 0.4s ease;
  }
  .c-rd-button:hover {
    opacity: 0.6;
  }
}

.rd-top__intro {
  margin-bottom: 40px;
  font-size: 18px;
  line-height: 1.75;
}
@media screen and (max-width: 750px) {
  .rd-top__intro {
    margin-bottom: 20px;
  }
}
.rd-top__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 270px 155px;
  grid-column-gap: 44px;
  grid-row-gap: 30px;
}
@media screen and (max-width: 750px) {
  .rd-top__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, 1fr);
    grid-row-gap: 24px;
    grid-column-gap: 12px;
  }
}
.rd-top__item {
  position: relative;
  overflow: hidden;
}
.rd-top__item::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: calc(100% - 4px);
  height: calc(100% - 4px);
  border: 2px solid transparent;
  transition: border-color 0.4s ease;
}
@media (hover: hover) {
  .rd-top__item:hover .rd-top__item-image {
    transform: scale(1.05);
    opacity: 0.6;
  }
  .rd-top__item:hover::after {
    border-color: #008086;
  }
}
.rd-top__item-image {
  display: block;
  width: auto;
  height: 100%;
  transition: opacity transform 0.2s ease-out;
}
@media screen and (max-width: 750px) {
  .rd-top__item-image {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
  }
}
.rd-top__item:not(:first-child) .rd-top__item-title {
  position: absolute;
  bottom: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 55px;
  background-color: rgba(7, 94, 99, 0.6);
  padding-left: 24px;
  padding-right: 24px;
}
@media screen and (max-width: 750px) {
  .rd-top__item:not(:first-child) .rd-top__item-title {
    padding-left: 8px;
    padding-right: 8px;
    height: 34px;
  }
}
.rd-top__item-label {
  color: #fff;
  font-weight: 700;
  line-height: 1.4;
}
@media screen and (max-width: 750px) {
  .rd-top__item-label {
    font-size: 10px;
  }
}
.rd-top__item-arrow {
  width: 8px;
  height: 8px;
  border-bottom: 1px solid #fff;
  border-right: 1px solid #fff;
  transform: rotate(-45deg);
  flex-shrink: 0;
}
@media screen and (max-width: 750px) {
  .rd-top__item-arrow {
    width: 4px;
    height: 4px;
  }
}
@media screen and (max-width: 750px) {
  .rd-top__item:nth-child(2) {
    grid-area: 2/1/3/2;
  }
}
@media screen and (max-width: 750px) {
  .rd-top__item:nth-child(3) {
    grid-area: 2/2/3/3;
  }
}
@media screen and (max-width: 750px) {
  .rd-top__item:nth-child(4) {
    grid-area: 3/1/4/2;
  }
}
@media screen and (max-width: 750px) {
  .rd-top__item:nth-child(5) {
    grid-area: 3/2/4/3;
  }
}
.rd-top__item:first-child {
  grid-column: 1/3;
  display: flex;
}
@media screen and (max-width: 750px) {
  .rd-top__item:first-child {
    grid-area: 1/1/2/3;
  }
}
@media screen and (max-width: 750px) {
  .rd-top__item:first-child .rd-top__item-image {
    width: 170px;
  }
}
.rd-top__item:first-child .rd-top__item-wrapper {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-grow: 1;
  background-image: url("../images/company/rd/top_message_bg.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  padding-left: 24px;
  padding-right: 10px;
  color: #fff;
}
@media screen and (max-width: 750px) {
  .rd-top__item:first-child .rd-top__item-text {
    padding: 10px 0;
  }
}
.rd-top__item:first-child .rd-top__item-title {
  margin-bottom: 44px;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0;
  line-height: 1;
}
@media screen and (max-width: 750px) {
  .rd-top__item:first-child .rd-top__item-title {
    margin-bottom: 20px;
    font-size: 20px;
  }
}
.rd-top__item:first-child .rd-top__item-arrow {
  width: 14px;
  height: 14px;
  border-width: 0 2px 2px 0;
  flex-shrink: 0;
}
@media screen and (max-width: 750px) {
  .rd-top__item:first-child .rd-top__item-arrow {
    width: 8px;
    height: 8px;
  }
}
@media screen and (max-width: 750px) {
  .rd-top__item:first-child .rd-top__item-desc {
    font-size: 12px;
  }
}
.rd-top__item:first-child .rd-top__item-name {
  display: block;
  margin-top: 0.4em;
  font-size: 20px;
}
@media screen and (max-width: 750px) {
  .rd-top__item:first-child .rd-top__item-name {
    font-size: 16px;
  }
}

.rd-policy__flow {
  box-shadow: 0 3px 6px 0 rgba(54, 88, 106, 0.08);
}
.rd-policy__flow-scroll {
  max-width: 100%;
  overflow: auto;
}
.rd-policy__flow-image {
  min-width: 500px;
}

.rd-message__top {
  display: flex;
  margin-bottom: 40px;
}
@media screen and (max-width: 750px) {
  .rd-message__top {
    margin-bottom: 24px;
  }
}
.rd-message__top-image {
  width: 342px;
  height: auto;
  flex-shrink: 0;
}
@media screen and (max-width: 750px) {
  .rd-message__top-image {
    width: 114px;
    -o-object-fit: cover;
       object-fit: cover;
  }
}
.rd-message__top-wrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex-grow: 1;
  padding-left: 64px;
  padding-right: 64px;
  background-image: url("../images/company/rd/message_bg.jpg");
  color: #fff;
  overflow: hidden;
}
@media screen and (max-width: 750px) {
  .rd-message__top-wrap {
    padding: 20px 15px;
  }
}
.rd-message__top-title {
  margin-bottom: 24px;
  font-size: 4rem;
  font-weight: 700;
}
@media screen and (max-width: 750px) {
  .rd-message__top-title {
    margin-bottom: 16px;
    font-size: 2rem;
    letter-spacing: -0.02em;
  }
}
.rd-message__top-desc {
  font-size: 1.8rem;
}
@media screen and (max-width: 750px) {
  .rd-message__top-desc {
    font-size: 1.3rem;
  }
}
.rd-message__top-name {
  font-size: 2.4rem;
}
@media screen and (max-width: 750px) {
  .rd-message__top-name {
    font-size: 1.5rem;
  }
}
.rd-message__text {
  font-size: 1.6rem;
  line-height: 1.75;
}
@media screen and (max-width: 750px) {
  .rd-message__text {
    font-size: 1.4rem;
  }
}

.rd-innovation__intro {
  margin-bottom: 48px;
  font-size: 1.6rem;
}
@media screen and (max-width: 750px) {
  .rd-innovation__intro {
    margin-bottom: 1em;
  }
}
.rd-innovation__box {
  margin-bottom: 48px;
  background-color: #fff;
  box-shadow: 0 3px 6px 0 rgba(54, 88, 106, 0.08);
  padding: 40px 50px;
}
@media screen and (max-width: 750px) {
  .rd-innovation__box {
    padding: 25px 15px;
  }
}
.rd-innovation__item {
  display: grid;
  grid-column-gap: 48px;
  grid-template-columns: 1fr auto;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #dfdfdf;
  padding-bottom: 14px;
  padding-right: 20px;
  padding-left: 20px;
}
@media screen and (max-width: 750px) {
  .rd-innovation__item {
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 20px;
    grid-row-gap: 15px;
    grid-template-columns: 100%;
  }
}
.rd-innovation__item:not(:last-child) {
  margin-bottom: 14px;
}
@media screen and (max-width: 750px) {
  .rd-innovation__item:not(:last-child) {
    margin-bottom: 20px;
  }
}
.rd-innovation__item-category {
  color: #919191;
  font-size: 1.4rem;
  border: 1px solid #919191;
  padding: 0.2em 0.4em;
  line-height: 1;
  margin-right: 16px;
  text-align: center;
}
@media screen and (max-width: 750px) {
  .rd-innovation__item-category {
    display: inline-block;
    margin-right: 12px;
  }
}
.rd-innovation__item-date {
  color: #919191;
  font-size: 1.5rem;
  letter-spacing: 0.01em;
}
.rd-innovation__item-title {
  margin-top: 1em;
  font-size: 1.5rem;
  color: #333;
  width: 100%;
  line-height: 1.5;
}
.rd-innovation__item-link {
  width: 145px;
}
@media screen and (max-width: 750px) {
  .rd-innovation__item-link {
    width: 100%;
    font-size: 1.4rem;
  }
}

.rd-case__intro {
  font-size: 1.6rem;
  margin-bottom: 30px;
}
.rd-case__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-column-gap: 40px;
}
@media screen and (max-width: 750px) {
  .rd-case__list {
    grid-template-columns: 100%;
    grid-row-gap: 45px;
  }
}
.rd-case__item-image {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 24px;
}
.rd-case__item-title {
  margin-bottom: 24px;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  border-left: 4px solid #008086;
  padding-left: 16px;
}
.rd-case__item-text {
  margin-bottom: 30px;
  font-size: 1.6rem;
  line-height: 1.75;
}
.rd-case__item-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-column-gap: 20px;
}
@media screen and (max-width: 750px) {
  .rd-case__item-links {
    grid-template-columns: 100%;
    grid-row-gap: 20px;
  }
}
.rd-case__item-link {
  max-width: 260px;
  width: 100%;
  height: 60px;
}
@media screen and (max-width: 750px) {
  .rd-case__item-link {
    max-width: 268px;
    margin-right: auto;
    margin-left: auto;
  }
}

.rd-case-detail__col2 {
  display: grid;
  grid-template-columns: 1fr 460px;
  grid-column-gap: 48px;
}
@media screen and (max-width: 750px) {
  .rd-case-detail__col2 {
    grid-template-columns: 100%;
    grid-row-gap: 40px;
  }
}
.rd-case-detail__text {
  line-height: 1.8;
}
@media screen and (max-width: 750px) {
  .rd-case-detail__image {
    grid-row: 1/2;
  }
}
.rd-case-detail__bottom {
  display: grid;
  grid-template-columns: repeat(2, minmax(240px, auto));
  justify-content: center;
  grid-column-gap: 40px;
}
@media screen and (max-width: 750px) {
  .rd-case-detail__bottom {
    grid-template-columns: 100%;
    grid-row-gap: 20px;
  }
}
.rd-case-detail__button {
  width: 100%;
  height: 60px;
  margin-right: auto;
  margin-left: auto;
}