.about-index .index-ttl {
  font-size: 60px;
  line-height: 1.7;
  letter-spacing: 0.05em;
  position: relative;
  text-align: center;
  width: -moz-fit-content;
  width: fit-content;
  margin: 0 auto;
  font-weight: 500;
  padding: 0 60px;
}
@media screen and (max-width: 767px) {
  .about-index .index-ttl {
    font-size: 45px;
    padding: 0 40px;
  }
}
.about-index .index-ttl:before {
  content: "";
  display: inline-block;
  width: 30px;
  height: 30px;
  border-top: 1px solid #000;
  border-left: 1px solid #000;
  position: absolute;
  top: 0;
  left: 0;
}
.about-index .index-ttl:after {
  content: "";
  display: inline-block;
  width: 30px;
  height: 30px;
  border-bottom: 1px solid #000;
  border-right: 1px solid #000;
  position: absolute;
  bottom: 0;
  right: 0;
}
.about-index h3 {
  text-align: center;
  font-size: 26px;
  letter-spacing: 0.05em;
  font-weight: 500;
}
@media screen and (max-width: 767px) {
  .about-index h3 {
    width: -moz-fit-content;
    width: fit-content;
    margin: 16px auto 0;
    font-size: 20px;
    line-height: 2;
  }
}
.about-index .txt-area {
  max-width: 880px;
  width: 100%;
  margin: 40px auto;
  /*margin-bottom: 0;*/
}
@media screen and (max-width: 767px) {
  .about-index .txt-area {
    padding: 0 30px;
  }
}
.about-index .txt-area p {
  /*font-size: 14px;*/
  font-size: 15px;
  line-height: 2;
  display: inline;
  margin-bottom: 0;
}
@media screen and (max-width: 767px) {
  .about-index .txt-area p {
    display: block;
    letter-spacing: 0.025em;
  }
  .about-index .txt-area p:not(:first-child) {
    margin-top: 24px;
  }
}
.about-index .slider-about {
  margin-top: 44px;
  width: 100%;
  display: flex;
  gap: 16px;
}
@media screen and (max-width: 767px) {
  .about-index .slider-about {
    margin-top: 40px;
  }
}
.about-index .slider-about li {
  width: calc((100% - 48px) / 4);
}
@media screen and (max-width: 767px) {
  .about-index .slider-about li {
    width: initial;
    padding: 0 6px;
  }
}
.about-index .slider-about li img {
  width: 100%;
}
@media screen and (max-width: 767px) {
  .about-index .slider-about li img {
    width: initial;
  }
}

.about-ttl {
  text-align: center;
  font-size: 26px;
  letter-spacing: 0.05em;
  margin-bottom: 32px;
  margin-top: 0;
  font-weight:500;
}
@media screen and (max-width: 767px) {
  .about-ttl {
    margin-bottom: 22px;
  }
}

.about-wrapper {
  margin-top: 108px;
}
@media screen and (max-width: 767px) {
  .about-wrapper {
    margin-top: 75px;
  }
}
.about-wrapper figure {
  margin: 0;
}
.about-wrapper .about-contents-wapper {
  display: flex;
  flex-direction: column;
  gap: 133px;
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper {
    gap: 56px;
  }
}
.about-wrapper .about-contents-wapper .about-contents-box {
  display: flex;
  position: relative;
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper .about-contents-box {
    display: block;
    margin-left: -30px;
    margin-right: -30px;
  }
}
.about-wrapper .about-contents-wapper .about-contents-box figure {
  width: 580px;
}
.about-wrapper .about-contents-wapper .about-contents-box figure img {
  width: 100%;
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper .about-contents-box figure {
    width: 100%;
  }
}
.about-wrapper .about-contents-wapper .about-contents-box .txt-area {
  width: 530px;
  background: #fff;
  right: 0;
  bottom: 0;
  position: absolute;
  z-index: 1;
  padding: 32px 0 10px 35px;
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper .about-contents-box .txt-area {
    position: static;
    width: 100%;
    padding: 20px 30px 0;
  }
}
.about-wrapper .about-contents-wapper .about-contents-box .txt-area h3 {
  font-size: 30px;
  line-height: 1.6666666667;
  letter-spacing: 0.05em;
  position: relative;
  margin: 0;
  font-weight:500;
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper .about-contents-box .txt-area h3 {
    font-size: 22px;
    line-height: 1.6363636364;
  }
}
.about-wrapper .about-contents-wapper .about-contents-box .txt-area h3:after {
  font-size: 90px;
  line-height: 1;
  color: #000;
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto 0;
  opacity: 0.1;
  font-weight: 400;
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper .about-contents-box .txt-area h3:after {
    right: -30px;
    margin: 0;
    top: -15px;
  }
}
.about-wrapper .about-contents-wapper .about-contents-box .txt-area > div {
  margin-top: 24px;
}
.about-wrapper .about-contents-wapper .about-contents-box .txt-area > div p {
  font-size: 14px;
  line-height: 2;
  margin-bottom: 0;
  display: inline;
}
.about-wrapper .about-contents-wapper .about-contents-box .txt-area > div p br {
  display: none;
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper .about-contents-box .txt-area > div p br {
    display: block;
  }
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper .about-contents-box .txt-area > div p {
    display: block;
  }
  .about-wrapper .about-contents-wapper .about-contents-box .txt-area > div p:not(:first-child) {
    margin-top: 24px;
  }
}
.about-wrapper .about-contents-wapper .about-contents-box:nth-child(1) h3:after {
  content: "01";
}
.about-wrapper .about-contents-wapper .about-contents-box:nth-child(2) h3:after {
  content: "02";
}
.about-wrapper .about-contents-wapper .about-contents-box:nth-child(3) h3:after {
  content: "03";
}
.about-wrapper .about-contents-wapper .about-contents-box:nth-child(even) {
  flex-direction: row-reverse;
}
.about-wrapper .about-contents-wapper .about-contents-box:nth-child(even) .txt-area {
  left: 0;
  padding: 32px 35px 10px 0;
}
@media screen and (max-width: 767px) {
  .about-wrapper .about-contents-wapper .about-contents-box:nth-child(even) .txt-area {
    width: 100%;
    padding: 20px 30px 0;
  }
}

.about-info {
  margin-top: 180px;
  margin-bottom: 150px;
}
@media screen and (max-width: 767px) {
  .about-info {
    margin-top: 100px;
    margin-bottom: 90px;
    margin-left: -10px;
    margin-right: -10px;
  }
}
.about-info .about-list {
  display: flex;
  flex-direction: column;
}
.about-info .about-list div {
  display: flex;
  gap: 0;
  border-bottom: 1px solid #c1c1c1;
  padding: 20px 0;
}
@media screen and (max-width: 767px) {
  .about-info .about-list div {
    flex-direction: column;
    padding: 8px 0;
    gap: 4px;
  }
}
.about-info .about-list div:nth-child(1) {
  border-top: 1px solid #c1c1c1;
}
.about-info .about-list div dt,
.about-info .about-list div dd {
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.05em;
  font-weight: 500;
}
.about-info .about-list div dt {
  width: 105px;
  padding-left: 10px;
}
.about-info .about-list div dd {
  flex: 1;
  padding-left: 10px;
  margin-left: 0;
}
@media screen and (max-width: 767px) {
  .about-info .about-list div dd {
    font-size: 14px;
  }
}