main {
  row-gap: 0;
}

.back_btn {
  position: fixed;
  right: 4%;
  bottom: 6%;
  border: 1.5px solid #fff;
  border-radius: 50px;
  padding: 24px;
  cursor: pointer;
  transition: .3s;
  /*デフォルトで非表示にする*/
  opacity: 0;
  visibility: hidden;
}
@media screen and (max-width: 768px) {
  .back_btn {
    right: 6%;
    bottom: 12%;
  }
}
.back_btn::after { /* くの字の表示設定 */
  content: "";
  position: absolute;
  bottom: 15px;
  left: 18px;
  width: 12px;
  height: 12px;
  border-top: 1.5px solid #fff;
  border-right: 1.5px solid #fff;
  transform: rotate(315deg);
}
/*このクラスが付与されると表示する*/
.back_active {
  opacity: 1;
  visibility: visible;
}

.section {
  padding: 156px 40px 72px 190px;
  display: flex;
  flex-direction: column;
  gap: 56px;
}
@media screen and (max-width: 768px) {
  .section {
    padding: 96px 24px 48px 24px;
  }
}

.traial {
  padding: 100px 40px 100px 190px;
}
@media screen and (max-width: 768px) {
  .traial {
    padding: 100px 24px;
  }
}

.section .sectionHead {
  font-size: 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-bottom: 0;
}
@media screen and (max-width: 768px) {
  .section .sectionHead {
    font-size: 32px;
    gap: 8px;
  }
}

.section .sectionHead span {
  font-size: 16px;
  margin-top: 0;
}
@media screen and (max-width: 768px) {
  .section .sectionHead span {
    font-size: 14px;
  }
}

.section .section__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
@media screen and (max-width: 768px) {
  .section .section__features {
    gap: 8px;
  }
}

.section .section__features .section__features-btn {
  display: flex;
  width: 100%;
  align-items: flex-start;
  align-content: flex-start;
  gap: 24px 16px;
  flex-wrap: wrap;
}
@media screen and (max-width: 768px) {
  .section .section__features .section__features-btn {
    gap: 16px;
    flex-direction: column;
  }
}

@media screen and (max-width: 768px) {
  .section .section__features .section__features-btn li {
    width: 100%;
  }
}

.section .section__features .section__features-btn .section__features-btn--button {
  display: flex;
  width: 240px;
  padding: 12px 0px;
  justify-content: center;
  align-items: center;
  background: #555;
  font-weight: 700;
}
@media screen and (max-width: 768px) {
  .section .section__features .section__features-btn .section__features-btn--button {
    width: 100%;
  }
}

.section .section__features .section__features-btn .section__features-btn--button:hover {
  background: #C7A577;
}

.section .section__features .section__features-contents {
  display: flex;
  padding-top: 48px;
  flex-direction: column;
}

.section .section__features .section__features-contents .contents {
  padding-top: 32px;
}
@media screen and (max-width: 768px) {
  .section .section__features .section__features-contents .contents {
    padding-top: 24px;
  }
}

.section .section__features .section__features-contents .sectionHead {
  font-size: 24px;
  gap: 4px;
}
@media screen and (max-width: 768px) {
  .section .section__features .section__features-contents .sectionHead {
    gap: 2px;
  }
}

.section .section__features .section__features-contents .sectionHead span {
  font-size: 14px;
}

.section .backtotop {
  margin-top: 0;
}