.hero_about {
  position: relative;
  background-color: #8aa4b7;
}
.hero_about img {
  width: 100%;
  height: auto;
  opacity: 0.4;
}
.hero_content-about {
  position: absolute;
  top: 25%;
  left: 15%;
  color: #ffffff;
  font-size: 2rem;
  font-weight: 500;
}
.hero_content-about h2 {
  font-size: 11rem;
  font-family: "Special Gothic Condensed One";
  font-weight: 400;
}
.hero_content-about p:nth-of-type(2) {
  font-size: 2.5em;
  font-weight: 300;
}

.index {
  margin: 8rem auto;
  font-size: 1.5rem;
  letter-spacing: 1px;
  font-weight: 600;
}
.index_text {
  display: flex;
  width: 43%;
  margin: 0 auto;
  flex-direction: column;
  flex-wrap: wrap;
  margin-bottom: 5rem;
  line-height: 1.5;
}
.index_text p {
  padding-bottom: 3rem;
}

.toc {
  display: flex;
  background-color: #e3e4e6;
  width: 52%;
  justify-content: space-around;
  margin: 0 auto;
  padding: 2em;
}
.toc_icon {
  width: 5%;
  padding-top: 0.3rem;
}
.toc_list {
  width: 95%;
  padding-left: 5rem;
}
.toc_list li {
  list-style: decimal !important;
  padding-bottom: 1rem;
}
.toc_list li::marker {
  color: #8aa4b7;
}

.icon {
  padding-right: 1.5em;
  overflow-wrap: break-word;
  background-image: url(../img/arrow-icon.svg);
  background-position: right 1px center;
  background-repeat: no-repeat;
  background-size: 1.3rem;
}

.section_wrapper {
  display: flex;
  width: 100%;
  height: 100%;
  padding-top: 5rem;
  padding-bottom: 18rem;
  letter-spacing: 1px;
}
.section_title {
  font-family: "Noto Sans JP";
  font-weight: 900;
  width: 38%;
  padding-left: 15%;
  padding-right: 4%;
  border-right: 2px solid #49505b;
}
.section_title h3 {
  position: sticky;
  top: 0;
  right: 0;
  font-size: 5rem;
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: flex-start;
}
.section_title h3.center {
  align-items: center;
}
.section_detail {
  width: 62%;
  padding-left: 4%;
  margin-bottom: 5em;
}

.feature_section {
  width: 80%;
  font-weight: 600;
}
.feature_section h5 {
  font-weight: bold;
  font-size: 3rem;
  padding-bottom: 2rem;
  letter-spacing: 4px;
}
.feature_section p {
  padding: 1.2em 0 5.5em;
  font-size: 1.5rem;
  letter-spacing: 2px;
}
.feature_img img {
  width: 100%;
  height: auto;
}
.feature_template {
  margin-bottom: 13rem;
  margin-top: 3%;
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
  align-items: center;
}
.feature_template a {
  display: inline-block;
  width: 30%;
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
  border-radius: 15px;
}
.feature_template a img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  display: block;
}

.point_section {
  width: 80%;
}
.point_section p {
  font-family: "Special Gothic Condensed One";
  font-weight: 400;
  font-size: 3.7rem;
  color: #fff988;
  text-align: center;
  position: relative;
  padding: 0.2em;
  background: #49505b;
  border-radius: 15px;
}
.point_section p:after {
  position: absolute;
  content: "";
  top: 100%;
  left: 49%;
  border: 12px solid transparent;
  border-top: 24px solid #49505b;
  width: 0;
  height: 0;
}
.point_pair {
  font-weight: 600;
  background-color: #e3e4e6;
  margin-top: 50px;
  margin-bottom: 5rem;
  text-align: center;
  height: 13em;
  padding-top: 1.5em;
}
.point_pair.first {
  margin-bottom: 8rem;
}
.point_tab {
  display: inline-block;
  background-color: #ffffff;
  border: 1px solid #49505b;
  border-radius: 30px;
  padding: 0.2em 1.5em;
  font-size: 1.4rem;
  margin: 0.4em 0.3em;
}
.point_tab:nth-child(3) {
  display: block;
  margin: 0.4em 15em;
}
.point_text {
  background-color: #ffffff;
  border: 1px solid #49505b;
  padding: 5% 0;
  display: flex;
  width: 77%;
  margin: 15px auto;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
}
.point_text img {
  width: 7%;
}
.point_text span {
  text-align: left;
  width: 63%;
  margin-left: 3%;
  font-size: 1.6rem;
}
.point-text {
  font-weight: bold;
}

.secondSection-text:nth-of-type(1) {
  font-weight: bold;
  font-size: 2.4rem;
  padding: 4% 0;
}
.secondSection-text:nth-of-type(2) {
  padding: 0;
}
.secondSection-text:nth-of-type(3) {
  padding: 2em 0;
}
.secondSection-btn {
  margin-bottom: 13%;
}
.secondSection-btn a {
  width: 36%;
  font-size: 1.5rem;
  padding: 1.8% 0;
}
.secondSection-btn a:hover {
  background-color: #e3e4e6;
}
.secondSection-btn a .button_text {
  justify-content: center;
}
.secondSection-btn a .button_text p:nth-of-type(2) {
  padding-left: 0.3em;
  font-size: 1.2rem;
}

.thirdSection_subText {
  padding: 0 10% 2rem 0 !important;
}
.thirdSection_Text {
  padding: 3rem 10% 4rem 0 !important;
}

.fourthSection {
  margin-bottom: 8rem;
}
.detail_video {
  width: 80%;
  position: relative;
  padding-top: 45%;
}
.detail_video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 15px;
}

.about-marker .js-marker {
  padding: 0;
  margin-left: 0;
}
.about-marker .js-marker::before {
  height: 1em;
}

@media (max-width: 1024px) {
  .icon {
    padding-right: 2.5em;
  }
  .point_section p:after {
    left: 48.4%;
    border: 6px solid transparent;
    border-top: 12px solid #49505b;
  }
  .point_pair {
    height: 14em;
  }
}
@media (max-width: 767px) {
  .hero_content-about {
    font-size: 3.2rem;
    line-height: 0.9;
  }
  .hero_content-about h2 {
    font-size: 15rem;
  }
  .index {
    font-size: 3rem;
  }
  .index_text {
    width: 80%;
  }
  .toc {
    width: 80%;
  }
  .toc_icon {
    width: 8%;
    padding-top: 0.3rem;
  }
  .toc_list {
    width: 92%;
    padding-left: 10rem;
  }
  .toc_list li {
    font-size: 3rem;
  }
  .icon {
    background-size: 3rem;
  }
  .section_wrapper {
    flex-direction: column;
    text-align: center;
  }
  .section_title {
    width: 100%;
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 3rem;
    border-right: 0px;
    border-bottom: 2px solid #49505b;
  }
  .section_title h3 {
    display: inline-block;
    font-size: 8rem;
  }
  .section_detail {
    width: 100%;
    padding-left: 0;
    padding-top: 5rem;
    margin-bottom: 5em;
  }
  .feature_section {
    margin: 0 auto;
  }
  .feature_section h5 {
    font-size: 6rem;
  }
  .feature_section p {
    padding: 1.2em 0 4em;
    font-size: 3.7rem;
  }
  .point_section {
    margin: 0 auto;
  }
  .point_section p {
    font-size: 6rem;
  }
  .point_section p:after {
    border: 4px solid transparent;
    border-top: 7px solid #49505b;
  }
  .point_pair {
    height: 26em;
    padding-top: 3em;
  }
  .point_pair.first {
    margin-bottom: 17rem;
  }
  .point_tab {
    font-size: 3rem;
    margin: 0.3em 0.3em 0.2em;
  }
  .point_tab:nth-child(3) {
    margin: 0.4em 9em;
  }
  .point_text {
    margin: 20px auto;
    width: 85%;
  }
  .point_text img {
    width: 6%;
  }
  .point_text span {
    font-size: 3rem;
  }
  .secondSection-btn a {
    width: 80%;
    font-size: 4rem;
    margin: 0 auto;
  }
  .secondSection-btn a .button_text p:nth-of-type(2) {
    font-size: 4rem;
  }
  .detail_video {
    margin: 0 auto;
  }
}