#key .photo {
   background: url("../img/index/key-img.jpg") no-repeat center top/cover;
}

@media only screen and (max-width: 767px) {
   #key .photo {
      width: 78vw;
      height: 163.5vw;
      margin-left: auto;
   }

   #key h2 {
      width: 14.4vw;
      height: 163.5vw;
      font-weight: 500;
      font-size: 7.2vw;
      letter-spacing: 0.22em;
      line-height: 2;
      text-align: center;
      position: absolute;
      top: 10vw;
      left: 14.5vw;
   }
}

@media only screen and (min-width: 768px) {
   #key {
      display: flex;
      justify-content: flex-end;
      align-self: flex-start;
   }

   #key .title {
      width: 43%;
      margin-left: auto;
   }

   #key h2 {
      width: 80px;
      height: 620px;
      font-weight: 500;
      font-size: 39px;
      line-height: 80px;
      letter-spacing: 0.22em;
      margin: 0 auto;
      padding: 196px 0 294px;
      position: relative;
   }

   #key h2:after {
      content: '';
      width: 0;
      height: 270px;
      border-left: 1px solid #222;
      position: absolute;
      bottom: 0;
      left: 50%;
   }

   #key .photo {
      width: 50%;
      height: 1040px;
   }
}

/* -- -- */
#read {
   position: relative;
}

@media only screen and (max-width: 767px) {
   #read {
      padding: 20vw 0 0;
   }

   #read h2 {
      font-weight: 500;
      font-size: 16vw;
      line-height: 1;
      letter-spacing: 0.04em;
      position: relative;
      z-index: 1;
   }

   #read h2 span {
      display: block;
   }

   #read h2 span:last-child {
      text-align: right;
   }

   #read h2 img {
      display: block;
      max-width: 48vw;
      margin: 0 6.4vw 0 auto;
   }

   #read .txt {
      font-size: 4vw;
      line-height: 2.7;
      letter-spacing: 0.3em;
      padding: 45vw 0 0;
   }

   #read .txt span {
      display: block;
      text-align: right;
   }

   #read .photo-1 {
      width: 50vw;
      height: 117vw;
      position: absolute;
      top: 15vw;
      left: 0;
   }

   #read .photo-2 {
      width: 50vw;
      margin: 8vw -6.6vw 0 auto;
      position: relative;
   }

   #read .photo-2:before {
      content: '';
      width: 12vw;
      height: 12vw;
      background-color: #7f9ec5;
      position: absolute;
      bottom: -6vw;
      left: -6vw;
   }
}

@media only screen and (min-width: 768px) {
   #read .wrap {
      padding-bottom: 233px;
   }

   #read h2 {
      font-weight: 500;
      font-size: 94px;
      line-height: 94px;
      letter-spacing: 0.04em;
      position: relative;
      z-index: 1;
      padding: 216px 0 0 288px;
   }

   #read h2 span {
      display: inline-block;
   }

   #read h2 img {
      max-width: 280px;
      position: absolute;
      top: 285px;
      left: 502px;
   }

   #read h2 span:last-child {
      padding: 193px 0 0 283px;
   }

   #read .txt {
      width: 472px;
      font-size: 21px;
      letter-spacing: 0.3em;
      line-height: 61px;
      margin-left: auto;
      padding-top: 68px;
   }

   #read .photo-1 {
      width: 504px;
      position: absolute;
      top: 0;
      left: -165px;
   }

   #read .photo-2 {
      width: 405px;
      position: absolute;
      bottom: 0;
      left: 66px;
   }

   #read .photo-2:before {
      content: '';
      width: 87px;
      height: 87px;
      background-color: #7f9ec5;
      position: absolute;
      bottom: -44px;
      left: -44px;
   }
}

/* -- -- */
#concept {
   position: relative;
}

@media only screen and (max-width: 767px) {
   #concept h2 {
      width: 7vw;
      font-weight: 400;
      font-size: 7vw;
      line-height: 7vw;
      letter-spacing: 0.18em;
      padding-top: 24vw;
      position: absolute;
      top: 0;
      left: 2.6vw;
      z-index: 1;
   }

   #concept h2:before {
      content: '';
      width: 0;
      height: 22vw;
      border-left: 1px solid #222;
      position: absolute;
      top: 0;
      left: 50%;
   }

   #concept .box-1 {
      position: relative;
      padding: 34vw 0 25vw;
   }

   #concept .box-1 .txt {
      padding-top: 8vw;
   }

   #concept .box-1 .txt br.pc {
      display: block;
   }

   #concept .box-2 {
      display: flex;
      align-items: flex-end;
      flex-wrap: wrap;
      gap: 0 3.2vw;
      position: relative;
      padding: 0 0 8vw 16vw;
   }

   #concept .box-2:before {
      content: '';
      width: 14.6vw;
      background-color: #e9e7e2;
      position: absolute;
      top: 20vw;
      bottom: 0;
      left: -6.6vw;
   }

   #concept .box-2 figure {
      width: 27vw;
   }

   #concept .box-2 h3 {
      width: 27vw;
      font-weight: 700;
      font-size: 4.8vw;
      letter-spacing: 0.1em;
      line-height: 7vw;
      border-bottom: 1px solid #222;
      text-align: right;
      margin-bottom: 6vw;
      padding-right: 3.2vw;
      box-sizing: border-box;
   }

   #concept .box-2 .txt {
      width: 100%;
      padding: 10vw 0 0;
      box-sizing: border-box;
   }

   #concept .box-2 .txt br {
      display: block;
   }
}

@media only screen and (min-width: 768px) {
   #concept {
      padding-bottom: 244px;
   }

   #concept h2 {
      width: 53px;
      font-weight: 400;
      font-size: 40px;
      line-height: 53px;
      letter-spacing: 0.18em;
      margin-left: 150px;
      padding-top: 185px;
      position: relative;
   }

   #concept h2:before {
      content: '';
      width: 0;
      height: 165px;
      border-left: 1px solid #222;
      position: absolute;
      top: 0;
      left: 50%;
   }

   #concept .box-1 {
      position: relative;
      padding-bottom: 103px;
   }

   #concept .box-1 figure {
      width: 700px;
      position: absolute;
      top: 210px;
      right: -167px;
   }

   #concept .box-1 .txt {
      width: 390px;
      padding-top: 70px;
   }

   #concept .box-2 {
      position: relative;
      z-index: 1;
      padding: 16px 0 0 282px;
   }

   #concept .box-2 figure {
      width: 200px;
      position: absolute;
      top: 0;
      left: 120px;
   }

   #concept .box-2 h3 {
      width: 296px;
      font-weight: 700;
      font-size: 22px;
      letter-spacing: 0.1em;
      line-height: 53px;
      border-bottom: 1px solid #222;
      text-align: right;
      padding-right: 55px;
      box-sizing: border-box;
   }

   #concept .box-2 .txt {
      width: 400px;
      padding: 28px 0 0 183px;
   }
}

/* -- -- */
#story {
   position: relative;
}

@media only screen and (max-width: 767px) {
   #story {
      padding-bottom: 46vw;
   }

   #story:before {
      content: '';
      width: 14.6vw;
      background-color: #e9e7e2;
      position: absolute;
      top: 0;
      bottom: 0;
      left: 0;
   }

   #story .wrap {
      padding-top: 34vw;
   }

   #story h2 {
      width: 73.3vw;
      margin-left: -2.5vw;
      position: relative;
      z-index: 1;
   }

   #story .photo-1 {
      height: 72vw;
      margin: 0 -6.6vw;
   }

   #story .photo-2 {
      width: 38vw;
      height: 68vw;
      position: absolute;
      top: 0;
      right: 0;
   }

   #story .txt {
      padding: 8vw 0 0 16vw;
   }
}

@media only screen and (min-width: 768px) {
   #story {
      padding-bottom: 363px;
   }

   #story:before {
      content: '';
      width: calc(50% - 325px);
      background-color: #e9e7e2;
      position: absolute;
      top: -370px;
      bottom: 0;
      left: 0;
   }

   #story h2 {
      width: 544px;
      position: absolute;
      top: 0;
      right: 20px;
      z-index: 1;
   }

   #story .photo-1 {
      width: 1200px;
      margin: 0 -100px;
      padding-top: 96px;
   }

   #story .photo-2 {
      width: 340px;
      position: absolute;
      top: 460px;
      right: -165px;
   }

   #story .txt {
      text-align: center;
      padding-top: 64px;
   }
}

/* -- -- */
#items {
   position: relative;
}

@media only screen and (max-width: 767px) {
   #items {
      padding-bottom: 32vw;
   }

   #items .photo_sp {
      width: 100%;
      height: 86.6vw;
   }

   #items .col {
      padding: 12vw 0 20vw;
   }

   #items h2 {
      font-weight: 500;
      font-size: 16vw;
      line-height: 1;
      letter-spacing: 0.04em;
      text-align: center;
   }

   #items .txt {
      text-align: center;
      padding-top: 10vw;
   }

   #items .txt br {
      display: block;
   }

   #items .button {
      padding-top: 24vw;
   }
}

@media only screen and (min-width: 768px) {
   #items {
      padding-bottom: 220px;
   }

   #items .row {
      display: grid;
      grid-template-columns: 40% 1fr;
      align-items: flex-start;
      position: relative;
   }

   #items .row .col {
      padding: 110px 0 200px;
      position: sticky;
      top: 0;
   }

   #items h2 {
      font-weight: 500;
      font-size: 94px;
      line-height: 94px;
      letter-spacing: 0.04em;
   }

   #items .txt {
      padding-top: 50px;
   }

   #items .button {
      width: 40%;
      position: absolute;
      bottom: 110px;
      left: 0;
   }

   #items .photo figure+figure {
      padding-top: 103px;
   }

   #items .photo img {
      width: 100%;
      max-width: inherit;
   }
}