.mv {
  position: relative;
  padding: 3rem 0 0 12.3rem;
  height: 40.6rem;
  color: #fff;
}

@media (max-width: 768px) {
  .mv {
    position: relative;
    padding: 2rem 0 0 2.4rem;
    height: 28.8rem;
  }
}

.mv__background--1 {
  position: absolute;
  top: 0;
  left: 0;
  width: 86.4rem;
}

@media (max-width: 768px) {
  .mv__background--1 {
    height: 17.5rem;
    width: 100%;
    background: linear-gradient(to bottom right, #0b7ad9, #35bede);
  }
}

.mv__background--2 {
  position: absolute;
  top: 5.2rem;
  right: 0;
  width: 79.5rem;
}

@media (max-width: 768px) {
  .mv__background--2 {
    top: 14.7rem;
    width: 36.6rem;
  }
}

.mv__breadcrumb {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.4rem;
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .mv__breadcrumb {
    font-size: 1.2rem;
  }
}

.mv__box {
  position: relative;
  margin: 8rem 0 0 0;
  font-weight: 700;
}

@media (max-width: 768px) {
  .mv__box {
    position: relative;
    margin: 2.9rem 0 0 0;
  }
}

.mv__box-subtitle {
  font-family: "Roboto";
  font-size: 3.4rem;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .mv__box-subtitle {
    font-size: 2rem;
  }
}

.mv__box-title {
  margin: 4.5rem 0 0;
  font-weight: 700;
  font-size: 4rem;
  letter-spacing: 0;
}

@media (max-width: 768px) {
  .mv__box-title {
    margin: 1.7rem 0 0;
    font-size: 2.4rem;
  }
}

.box-1 {
  margin: 9rem 0 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
}

@media (max-width: 768px) {
  .box-1 {
    margin: 6.4rem 0 0;
    flex-direction: column;
    gap: 0;
    justify-content: start;
  }
}

.box-1__text-box {
  padding: 3.3rem 0 4.6rem 11.3rem;
  width: 62.5rem;
}

@media (max-width: 768px) {
  .box-1__text-box {
    margin: 0 auto;
    padding: 0;
    width: 34.2rem;
  }
}

.box-1__title {
  font-weight: 700;
  font-size: 3.6rem;
  line-height: 1.5em;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .box-1__title {
    font-size: 2.4rem;
  }
}

.box-1__text {
  margin: 4rem 0 0;
  line-height: 2em;
}

@media (max-width: 768px) {
  .box-1__text {
    margin: 2.6rem 0 0;
    font-size: 1.4rem;
    line-height: 1.57em;
  }
}

.box-1__image {
  width: 68.2rem;
}

@media (max-width: 768px) {
  .box-1__image {
    margin: 0 0 0 auto;
    width: 32.6rem;
  }
}

.business-image {
  margin: 1rem auto 0;
  width: 100rem;
}

@media (max-width: 768px) {
  .business-image {
    margin: 3.6rem 0 0;
    width: 100%;
  }
}

.introduction__list {
  margin: 0 auto 14.9rem;
  width: 112rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (max-width: 768px) {
  .introduction__list {
    margin: 6.4rem auto 7.9rem;
    width: 34.2rem;
    gap: 2.4rem;
  }
}

.introduction__item {
  display: flex;
}

@media (max-width: 768px) {
  .introduction__item {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .introduction__item--reverse {
    flex-direction: column-reverse;
  }
}

.introduction__text-box {
  position: relative;
  background: #e7f2fa;
  padding: 6.1rem 5rem 3.9rem 4.5rem;
  width: 46.6rem;
}

@media (max-width: 768px) {
  .introduction__text-box {
    padding: 2.9rem 2.4rem 4.4rem 3.4rem;
    width: 100%;
  }
}
.introduction__text-box--chemical {
  padding: 5rem 5rem 2.9rem 4.5rem;
}
@media (max-width: 768px) {
  .introduction__text-box--chemical {
    padding: 2.9rem 2.4rem 4.4rem 3.4rem;
  }
}

.introduction__text-box-image {
  position: absolute;
}

.introduction__text-box-image--drum {
  top: 2.6rem;
  right: 3.7rem;
  width: 7.4rem;
}

@media (max-width: 768px) {
  .introduction__text-box-image--drum {
    top: 2rem;
    right: 2.4rem;
    width: 5.7rem;
  }
}

.introduction__text-box-title {
  color: #0075cb;
  font-weight: 700;
  font-size: 2.4rem;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .introduction__text-box-title {
    font-size: 2rem;
  }
}

.introduction__text-box-text {
  margin: 2rem 0 0;
  letter-spacing: 0;
  line-height: 1.625;
}

@media (max-width: 768px) {
  .introduction__text-box-text {
    font-size: 1.4rem;
  }
}

@media (min-width: 769px) {
  .introduction__text-box-text--pc-kaigyou {
    white-space: nowrap;
  }
}

.introduction__text-box-link {
  margin: 3.3rem 0 0;
  display: flex;
  align-items: center;
  gap: 1.8rem;
}
.introduction__text-box-link--chemical {
  margin: 1.3rem 0 0;
}
@media (max-width: 768px) {
  .introduction__text-box-link--chemical {
    margin: 3.3rem 0 0;
  }
}

.introduction__text-box-link-text {
  font-weight: 500;
  letter-spacing: 0;
}

@media (max-width: 768px) {
  .introduction__text-box-link-text {
    font-size: 1.4rem;
  }
}
.introduction__text-box-link-text:hover {
  color: #0075cb;
}

.introduction__text-box-link-icon {
  margin: -0.1rem 0 0;
  width: 1rem;
}

.introduction__image {
  width: 65.4rem;
}

@media (max-width: 768px) {
  .introduction__image {
    width: 100%;
  }
}

.introduction__text-box-image--wheel {
  top: 1.6rem;
  right: 2.2rem;
  width: 12.2rem;
}

@media (max-width: 768px) {
  .introduction__text-box-image--wheel {
    top: 1.7rem;
    right: 1rem;
    width: 7.1rem;
  }
}

.introduction__text-box-image--flask {
  top: 2rem;
  right: 4rem;
  width: 8.6rem;
}

@media (max-width: 768px) {
  .introduction__text-box-image--flask {
    top: 2.2rem;
    right: 2rem;
    width: 5.5rem;
  }
}

@media (max-width: 768px) {
  .introduction__item:last-child {
    flex-direction: column-reverse;
  }
}