#index section {
  position: relative;
  /*height: calc(100vh - 138px);*/
}

.kv0 {
  background: url(../images/index_kv0.png?t=2) center center no-repeat;
  background-size: cover;
  height: calc(1006 / 1920 * 100vw);
}

.kv {
  background: url(../images/index_kv1.jpg?t=1) center center no-repeat;
  background-size: cover;
  height: calc(1006 / 1920 * 100vw);
}

.sec1 {
  background: url(../images/index_s1.jpg) center center no-repeat;
  background-size: cover;
  height: calc(1127 / 1920 * 100vw);
}

.sec2 {
  background: url(../images/index_s2.jpg) center center no-repeat;
  background-size: cover;
  height: calc(1099 / 1920 * 100vw);
}
section a {
  width: 100%;
  height: 100%;
  display: block;
  position: relative;
}

#index section h3 {
  font-size: 3.0208vw;
  color: #fff;
  margin-bottom: 0.75em;
  font-weight: 500;
}

#index section p {
  font-size: 1.09375vw;
  color: #fff;
  line-height: 2em;
  margin-bottom: 0.5em;
}
#index section span {
  color: #fff;
  border: 1px solid #fff;
  padding: 0.25em 0.75em;
  display: inline-block;
  font-size: 1.1vw;
}
#index section span:hover {
  background: #fff;
  color: #000;
}
.sec1-txt {
  position: absolute;
  left: 62vw;
  top: 24.5vw;
}

.sec2-txt {
  position: absolute;
  left: 24vw;
  top: 14vw;
}

@media screen and (max-width: 999px) {
  #index section h3 {
    font-size: 6.8vw;
  }

  #index section p {
    font-size: 2.933vw;
  }
  #index section .sec1-txt h3,
  #index section .sec1-txt p,
  #index section .sec1-txt span {
    color: #221815;
    border-color: #221815;
  }
  #index section span {
    display: inline;
    font-size: 2.3vw;
    border: 1px solid #fff;
    padding: 0.2em 0.8em;
    text-align: center;
    line-height: 12.01px;
  }
  .sec1-txt,
  .sec2-txt {
    left: 6vw;
    top: 14vw;
  }

  .kv0 {
    background: url(../images/m_index_kv0.png) center center no-repeat;
    background-size: cover;
    height: calc(866 / 750 * 100vw);
  }

  .kv {
    background: url(../images/m_index_kv1.jpg) center center no-repeat;
    background-size: cover;
    height: calc(947 / 750 * 100vw);
  }

  .sec1 {
    background: url(../images/m_index_s1.jpg) center center no-repeat;
    background-size: cover;
    height: calc(944 / 750 * 100vw);
  }

  .sec2 {
    background: url(../images/m_index_s2.jpg) center center no-repeat;
    background-size: cover;
    height: calc(906 / 750 * 100vw);
  }

  .kv0 span {
    position: absolute;
    left: 78.4vw;
    top: 45.8vw;
    z-index: 1;
  }

  .kv span {
    position: absolute;
    left: 83vw;
    top: 60vw;
    z-index: 1;
  }
}