/*------------------------------------------------------------------------------------
clearfix
------------------------------------------------------------------------------------*/
body {
  min-width: 1000px;
}

.main-block {
  background: url(../img/history/main_img.jpg) center center no-repeat;
  background-size: cover;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  height: 600px;
  font-family: 'Noto Serif JP', serif;
  font-size: 20px;
  font-size: 2.0rem;
  line-height: 2.0;
  color: #FFF;
  text-align: center;
}
.main-block p {
  margin-top: 45px;
}
.main-block br.sp {
  display: none;
}

.page-content > div {
  padding: 80px 20px;
  background-repeat: no-repeat;
}
.page-content > div:nth-child(2n) {
  background-image: url(../img/history/bg.png);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: #FFF;
}
.page-content > div:nth-child(2n) .content-wrap {
  padding-right: 60px;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: reverse;
      -ms-flex-direction: row-reverse;
          flex-direction: row-reverse;
}
.page-content > div:nth-child(2n) .chapter-ttl {
  color: #FFF;
}
.page-content > div:nth-child(1) .content-wrap {
  min-height: 860px;
}
.page-content > div:nth-child(1) .chapter-text {
  width: 38.6%;
  padding: 8% 0 0 60px;
}
.page-content > div:nth-child(1) .chapter-img {
  width: 655px;
  top: 0;
  left: 50%;
}
.page-content > div:nth-child(1) .chapter-img .text01 {
  top: 57.1%;
  right: 6.3%;
  width: 24.5%;
}
.page-content > div:nth-child(1) .chapter-img .text02 {
  top: 82.4%;
  left: 26.0%;
  width: 24.5%;
}
.page-content > div:nth-child(1) .chapter-img .text03 {
  top: 97.6%;
  left: 67.7%;
  width: 33.6%;
}
.page-content > div:nth-child(2) .content-wrap {
  min-height: 850px;
}
.page-content > div:nth-child(2) .chapter-text {
  padding: 0;
  width: 40%;
}
.page-content > div:nth-child(2) .chapter-img {
  width: 670px;
  top: 0;
  right: 50%;
}
.page-content > div:nth-child(2) .chapter-img .text01 {
  top: 44.5%;
  left: 70%;
  width: 32%;
}
.page-content > div:nth-child(2) .chapter-img .text02 {
  top: 86%;
  left: 9%;
  width: 37%;
}
.page-content > div:nth-child(2) .chapter-img .text03 {
  top: 97.4%;
  left: 60%;
  width: 42.5%;
}
.page-content > div:nth-child(3) .content-wrap {
  min-height: 800px;
}
.page-content > div:nth-child(3) .chapter-text {
  padding: 0 0 0 60px;
}
.page-content > div:nth-child(3) .chapter-img {
  width: 700px;
  top: 0;
  left: 50%;
}
.page-content > div:nth-child(3) .chapter-img .text01 {
  top: 58.5%;
  left: 32.0%;
  width: 28.6%;
}
.page-content > div:nth-child(3) .chapter-img .text02 {
  top: 97.8%;
  left: 59%;
  width: 28.6%;
}
.page-content > div:nth-child(4) .content-wrap {
  min-height: 820px;
}
.page-content > div:nth-child(4) .chapter-text {
  padding: 0;
  width: 40%;
}
.page-content > div:nth-child(4) .chapter-img {
  width: 599px;
  top: 0;
  right: 50%;
}
.page-content > div:nth-child(4) .chapter-img .text01 {
  top: 40.4%;
  left: 78.3%;
  width: 23.3%;
}
.page-content > div:nth-child(4) .chapter-img .text02 {
  top: 53.3%;
  left: 25.3%;
  width: 23.3%;
}
.page-content > div:nth-child(4) .chapter-img .text03 {
  top: 76.2%;
  left: 76.7%;
  width: 23.3%;
}
.page-content > div:nth-child(4) .chapter-img .text04 {
  top: 97.2%;
  left: 47.3%;
  width: 20%;
}
.page-content > div:nth-child(5) .content-wrap {
  min-height: 620px;
}
.page-content > div:nth-child(5) .chapter-text {
  padding: 0 0 0 60px;
}
.page-content > div:nth-child(5) .chapter-img {
  width: 648px;
  top: 0;
  left: 50%;
}
.page-content > div:nth-child(5) .chapter-img .text01 {
  top: 97%;
  left: 44.5%;
  width: 30.9%;
}
.page-content > div:nth-child(6) .content-wrap {
  min-height: 840px;
}
.page-content > div:nth-child(6) .chapter-text {
  padding: 0;
  width: 40%;
}
.page-content > div:nth-child(6) .chapter-img {
  width: 581px;
  top: 0;
  right: 50%;
}
.page-content > div:nth-child(7) .content-wrap {
  min-height: 700px;
}
.page-content > div:nth-child(7) .chapter-text {
  padding: 0 0 0 60px;
}
.page-content > div:nth-child(7) .chapter-img {
  width: 600px;
  top: 0;
  left: 50%;
}
.page-content > div:nth-child(7) .chapter-img .text01 {
  top: 36%;
  left: 52.2%;
  width: 16.7%;
}
.page-content > div:nth-child(7) .chapter-img .text02 {
  top: 97.5%;
  left: 51.8%;
  width: 50%;
}

.content-wrap {
  max-width: 1200px;
  margin: 0 auto;
  font-size: 18px;
  font-size: 1.8rem;
  line-height: 1.9;
  box-sizing: border-box;
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.content-wrap > div:nth-child(1) {
  width: 38.6%;
}
.chapter-num img {
  width: auto;
  max-height: 100%;
  vertical-align: top;
}

.chapter-ttl {
  font-size: 36px;
  font-size: 3.6rem;
  line-height: 1.6;
  font-weight: bold;
  margin-top: 35px;
  color: #222222;
}

.chapter-lead {
  font-size: 20px;
  font-size: 2.0rem;
  margin: 0 0 50px;
}

.chapter-img {
  position: absolute;
}
.chapter-img p {
  display: block;
  position: absolute;
  line-height: 1.0;
}
.chapter-img img {
  vertical-align: top;
  width: 100%;
  height: auto;
}
@media only screen and (max-width: 767px) {
  body {
    min-width: initial;
    min-width: auto;
  }
  .page-content > div {
    padding: 0 20px;
  }
  .page-content > div:nth-child(2n+1) .content-wrap {
    padding: 30px 0;
  }
  .page-content > div:nth-child(2n) .content-wrap {
    padding: 30px 0;
  }
  .page-content > div:nth-child(1) .content-wrap {
    min-height: initial;
  }
  .page-content > div:nth-child(1) .chapter-text {
    padding: 0;
    width: auto;
  }
  .page-content > div:nth-child(1) .chapter-img {
    width: auto;
    left: 0;
  }
  .page-content > div:nth-child(2) .content-wrap {
    min-height: initial;
  }
  .page-content > div:nth-child(2) .chapter-text {
    padding: 0;
    width: auto;
  }
  .page-content > div:nth-child(2) .chapter-img {
    width: auto;
    left: 0;
  }
  .page-content > div:nth-child(3) .content-wrap {
    min-height: initial;
  }
  .page-content > div:nth-child(3) .chapter-text {
    padding: 0;
  }
  .page-content > div:nth-child(3) .chapter-img {
    width: auto;
    left: 0;
  }
  .page-content > div:nth-child(4) .content-wrap {
    min-height: initial;
  }
  .page-content > div:nth-child(4) .chapter-text {
    padding: 0;
    width: auto;
  }
  .page-content > div:nth-child(4) .chapter-img {
    width: auto;
    left: 0;
  }
  .page-content > div:nth-child(5) .content-wrap {
    min-height: initial;
  }
  .page-content > div:nth-child(5) .chapter-text {
    padding: 0;
  }
  .page-content > div:nth-child(5) .chapter-img {
    width: auto;
    left: 0;
  }
  .page-content > div:nth-child(6) .content-wrap {
    min-height: initial;
  }
  .page-content > div:nth-child(6) .chapter-text {
    padding: 0;
    width: auto;
  }
  .page-content > div:nth-child(6) .chapter-img {
    width: auto;
    left: 0;
  }
  .page-content > div:nth-child(7) .content-wrap {
    min-height: initial;
  }
  .page-content > div:nth-child(7) .chapter-text {
    padding: 0;
  }
  .page-content > div:nth-child(7) .chapter-img {
    width: auto;
    left: 0;
  }
  .content-wrap {
    width: auto;
    font-size: 1.4rem;
    display: block;
  }
  .content-wrap > div:nth-child(1) {
    width: auto;
  }
  .chapter-lead {
    margin: 0 0 30px;
  }
  .chapter-img {
    position: relative;
    margin-top: 30px;
  }
}
@media only screen and (min-width: 641px) and (max-width: 767px) {
  .main-block {
    font-size: 1.8rem;
  }
}
@media only screen and (max-width: 640px) {
  .main-block {
    height: 400px;
    font-size: 1.4rem;
  }
  .main-block h1 {
    width: 280px;
  }
  .main-block p {
    margin-top: 30px;
  }
  .main-block br.sp {
    display: inherit;
  }
  .chapter-num {
    height: 22px;
  }
  .chapter-ttl {
    font-size: 2.4rem;
    line-height: 1.6;
    margin-top: 10px;
  }
  .chapter-lead {
    font-size: 1.6rem;
  }
}
@media only screen and (min-width: 769px) and (max-width: 1320px) {
  .page-content > div:nth-child(1) .chapter-img {
    width: 50%;
  }
}
@media only screen and (min-width: 769px) and (max-width: 1350px) {
  .page-content > div:nth-child(2) .chapter-img {
    width: 50%;
  }
}
@media only screen and (min-width: 769px) and (max-width: 1318px) {
  .page-content > div:nth-child(3) .chapter-img {
    width: 50%;
  }
}
@media only screen and (min-width: 769px) and (max-width: 1210px) {
  .page-content > div:nth-child(4) .chapter-img {
    width: 50%;
  }
}
@media only screen and (min-width: 769px) and (max-width: 1310px) {
  .page-content > div:nth-child(5) .chapter-img {
    width: 50%;
  }
}
@media only screen and (min-width: 769px) and (max-width: 1170px) {
  .page-content > div:nth-child(6) .chapter-img {
    width: 50%;
  }
}
@media only screen and (min-width: 769px) and (max-width: 1234px) {
  .page-content > div:nth-child(7) .chapter-img {
    width: 50%;
  }
}
@media only screen and (min-width: 768px) and (max-width: 1200px) {
  .content-wrap > div:nth-child(2) .chapter-img {
    width: 50%;
  }
}