/*---------------------------------------------
  intro
---------------------------------------------*/
.concept-intro {
  background: #f7f7f7;
}
.concept-intro .intro-lead-title {
  font-weight: 400;
}

.concept-intro .danraku p {
  text-align: center;
}
@media (max-width: 540px) {
  .concept-intro .danraku p {
    text-align: left;
  }
}
@media (max-width: 540px) {
  .concept-intro .danraku p br {
    display: none;
  }
}

/*---------------------------------------------
  concept
---------------------------------------------*/
@media (max-width: 540px) {
  .concept-list .inner {
    width: 100%;
  }
}
.concept-list .inner .titleBox {
  margin-bottom: 20%;
}
@media (max-width: 540px) {
  .concept-list .inner .titleBox {
    margin-bottom: 40px;
  }
}

.item-list li {
  position: relative;
  margin-bottom: 210px;
}
@media (max-width: 960px) {
  .item-list li {
    margin-bottom: 130px;
  }
}
@media (max-width: 540px) {
  .item-list li {
    margin-bottom: 30px;
  }
}
.item-list li:last-child {
  margin-bottom: 100px;
}
@media (max-width: 960px) {
  .item-list li:last-child {
    margin-bottom: 80px;
  }
}
@media (max-width: 540px) {
  .item-list li:last-child {
    margin-bottom: 0;
  }
}

.item-list li .imgWrap {
  display: block;
  width: 53%;
  height: 395px;
  background-position: 50%;
  position: absolute;
  z-index: 1;
  background-size: cover;
  background-repeat: no-repeat;
  top: -100px;
}
@media (max-width: 960px) {
  .item-list li .imgWrap {
    height: 320px;
    top: -50px;
  }
}
@media (max-width: 540px) {
  .item-list li .imgWrap {
    position: relative;
    width: 100%;
    height: 270px;
    top: 0;
  }
}

.item-list li:nth-child(odd) > .imgWrap {
  left: 0;
}

.item-list li:nth-child(even) > .imgWrap {
  right: 0;
}

.item-list li .item-content {
  width: 53.5%;
  height: auto;
  min-height: 360px;
  padding: 70px 70px;
  background: rgba(247, 241, 241, 0.8);
  position: relative;
  z-index: 2;
  text-align: left;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  display: table;
}
@media (max-width: 960px) {
  .item-list li .item-content {
    padding: 50px 40px;
    min-height: 300px;
    width: 58%;
  }
}
@media (max-width: 540px) {
  .item-list li .item-content {
    width: 100%;
    padding: 35px 30px;
    min-height: 0;
    background: none;
  }
}

.item-list li .item-content .content-inner {
  display: table-cell;
  vertical-align: middle;
}

.item-list li:nth-child(odd) .item-content {
  margin-left: 42%;
}
@media (max-width: 540px) {
  .item-list li:nth-child(odd) .item-content {
    margin-left: 0;
  }
}

.item-title {
  font-weight: 400;
  margin-bottom: 20px;
  letter-spacing: 0.2rem;
}
@media (max-width: 960px) {
  .item-title {
    margin-bottom: 15px;
  }
}
@media (max-width: 540px) {
  .item-title {
    letter-spacing: 0.1rem;
  }
}