.coal-box {
  background-color: var(--accent3);
  border-radius: 2rem;
  padding: 4rem 7.7rem 6rem 8.5rem;
  color: #fff;
}
@media (max-width: 767px) {
  .coal-box {
    padding: 1.7rem 2rem 4rem 3.4rem;
  }
}
.coal-box__title {
  font-size: 3.6rem;
  line-height: 2;
  margin-bottom: 0.5em;
}
@media (max-width: 767px) {
  .coal-box__title {
    font-size: 2.4rem;
  }
}
.coal-box__items {
  display: grid;
  grid-template-columns: repeat(4, 25%);
}
@media (max-width: 767px) {
  .coal-box__items {
    display: block;
    position: relative;
  }
  .coal-box__items::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.7rem;
    width: 1px;
    height: calc(100% - 0.7rem);
    background-color: var(--accent1);
  }
}
.coal-box__item {
  color: #fff;
}
@media (max-width: 767px) {
  .coal-box__item + .coal-box__item {
    margin-top: 2rem;
  }
}
.coal-box__item p {
  line-height: 1.6;
}
@media (max-width: 767px) {
  .coal-box__item p {
    font-size: 1.6rem;
    padding-left: 2rem;
  }
}
.coal-box__item-title {
  font-size: 2.4rem;
  font-weight: bold;
  padding-bottom: 0.75em;
  margin-bottom: 0.75em;
  border-bottom: 1px solid var(--accent1);
  position: relative;
}
@media (max-width: 767px) {
  .coal-box__item-title {
    border-bottom: 0;
    font-size: 1.6rem;
    margin-bottom: 0;
    padding-left: 2rem;
  }
}
.coal-box__item-title::after {
  content: "";
  width: 1rem;
  height: 1rem;
  border-radius: 100%;
  background-color: var(--accent1);
  position: absolute;
  inset: auto auto -0.5rem 2.4rem;
}
@media (max-width: 767px) {
  .coal-box__item-title::after {
    inset: 0.7rem auto auto -0.5rem;
  }
}

.coal-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4rem;
}
@media (max-width: 767px) {
  .coal-cards {
    grid-template-columns: 1fr;
    gap: 9rem;
  }
}

.coal-card {
  position: relative;
}
.coal-card__image {
  position: relative;
  margin-bottom: 3.5rem;
}
@media (max-width: 767px) {
  .coal-card__image {
    margin-bottom: 2rem;
  }
}
.coal-card__image > img {
  border-radius: 2rem;
}
.coal-card__no {
  position: absolute;
  inset: -11rem auto auto -2.5rem;
  z-index: 1;
}
@media (max-width: 767px) {
  .coal-card__no {
    top: -10rem;
  }
}
.coal-card__title {
  font-size: 2.8rem;
  letter-spacing: 0.05em;
  font-weight: bold;
  color: var(--accent1);
  margin-bottom: 1rem;
}
@media (max-width: 767px) {
  .coal-card__title {
    font-size: 2.4rem;
  }
}
.coal-card p {
  letter-spacing: 0.05em;
}
@media (max-width: 767px) {
  .coal-card p {
    font-size: 1.6rem;
  }
}

.coal-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6rem;
}

.coal-column {
  background-color: #fff;
  border-radius: 2rem;
  padding: 3rem 3.5rem 6rem;
}
.coal-column__icon img {
  margin-left: auto;
  margin-right: auto;
}
.coal-column__title {
  text-align: center;
  color: var(--accent1);
  font-size: 3.6rem;
  margin-bottom: 0.5em;
}