@charset "UTF-8";
.mv {
  /*  background: url("../../images/index/mv.jpg")no-repeat center center/cover;*/
  width: 100%;
  /*
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
*/
  height: 100vh;
  min-height: 600px;
  position: relative;
  overflow: hidden;
}
.mv video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: auto;
  width: auto;
  height: 100vh;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  z-index: 1;
}
/*
.mv::after {
  position: absolute;
  content: "";
  width: 100%;
  height: 6rem;
  background: linear-gradient(transparent 50%, #000 200%);
  left: 0;
  bottom: 0;
}
*/
/*
.mv_logo {
  max-width: 15rem;
  text-align: center;
  color: #000000;
}
*/
/**/
.topics .cont_ttl {
  color: #2846D8;
}
.topics_list .topics_list_inr {
  margin-bottom: 6rem;
}
.topics .topics_list_inr a {
  color: #fff;
}
.topics .topics_list_inr a .thum {
  overflow: hidden;
  border-radius: 10px;
  line-height: 1;
  margin-bottom: 1.2rem;
  position: relative;
  height: 22rem;
}
.topics .topics_list_inr a .thum img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  -webkit-transition: all 1s cubic-bezier(0.19, 1, 0.22, 1);
  transition: all 1s cubic-bezier(0.19, 1, 0.22, 1);
}
.topics .topics_list_inr a .cat_time {
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.topics .topics_list_inr a .cat {
  background-color: #fff;
  color: #000;
  padding: 0.6rem 1rem;
  line-height: 1;
}
/*
.topics .topics_list_inr a time {
  width: calc(100% - 100px);
  display: inline-block;
  text-align: right;
}
*/
.topics .topics_list_inr a .ttl {
  font-size: 1.8rem;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}
/**/
.readmore {
  height: 72px;
  position: relative;
  transition: all 1s;
  -webkit-transition: all 1s;
}
.readmore::after {
  position: absolute;
  content: "";
  width: 100%;
  height: 2px;
  background-color: #545454;
  left: 0;
  top: 19px;
}
.readmore .readmore_btn {
  position: absolute;
  width: 100px;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  text-align: center;
  height: 7.2rem;
  z-index: 10;
}
.readmore .readmore_btn .btn_txt {
  font-size: 1.6rem;
  border-bottom: 1px solid #555555;
  padding-bottom: 2px;
}
.readmore .readmore_btn .arrow {
  width: 4rem;
  height: 4rem;
  border-radius: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #000;
  border: 2px solid #545454;
  margin: 0 auto 0.5rem;
  box-shadow: 0 0 30px #000;
  transition: all 1s;
}
.readmore.active {
  opacity: 0;
}
/*
.readmore .readmore_btn.active .arrow {
  transform: rotate(-180deg);
}
*/
.readmore .readmore_btn .arrow img {
  width: 12px;
}
.topics_list {
  justify-content: flex-start;
  height: 1030px;
  overflow: hidden;
  transition: all 3s;
  -webkit-transition: all 3s;
}
.topics_list.active {
  height: auto;
  overflow: auto;
}
/*
.topics_list .topics_list_inr:nth-child(4), .topics_list .topics_list_inr:nth-child(5), .topics_list .topics_list_inr:nth-child(6) {
  display: none;
}
*/
.topics_list .topics_list_inr {
  width: 100%;
  padding: 0 1.5rem;
}
.featherlight .featherlight-content {
  width: 90%;
  padding: 5rem 3rem;
  color: #000;
  max-width: 80rem;
  border-radius: 1rem;
}
.featherlight .featherlight-content h3 {
  border-left: 4px solid #2846D8;
  padding-left: 1.5rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}
.featherlight .featherlight-content h4 {
  border-left: 2px dotted #2846D8;
  padding-left: 1.5rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}
.featherlight .featherlight-content img {
  margin-bottom: 3rem;
}
.featherlight .featherlight-content .ttl {
  font-size: 2rem;
  border-bottom: 2px solid #2846D8;
  margin-bottom: 2rem;
}
.featherlight .featherlight-close-icon {
  background-color: #666;
  color: #fff;
  height: 4rem;
  width: 4rem;
}
@media only screen and (min-width: 769px) {
  .mv {
    min-height: 768px;
  }
  .mv video {
    min-width: 100%;
    min-height: 100%;
  }
  .topics_list {
    height: 350px;
  }
  .topics_list .topics_list_inr {
    width: calc(100% / 3);
    padding: 0 1.5rem;
  }
  .topics .topics_list_inr a:hover .thum img {
    transform: translate(-50%, -50%)scale(1.08);
  }
  .featherlight .featherlight-content .ttl {
    font-size: 2.4rem;
    margin-bottom: 3rem;
  }
  .readmore .readmore_btn:hover .arrow {
    transform: scale(1.3)
  }
}
@media only screen and (min-width: 1367px) {
  .mv video {
    min-height: 120%;
  }
}