article {
  padding-top: 0;
  background-color: unset;
  padding: 0;
}
.content_wrap {
  background-color: rgba(255,255,255,0.9);
  padding: 60px 0 0;
}
#kv {
  display: flex;
  height: 100vh;
  width: 100vw;
  justify-content: center;
  align-items: center;
  margin-left: calc((100vw - 100%) / 2 * -1);
  overflow: hidden;
}
#kv img.pc {
  max-width: 80%;
}
#information {
  background-color: #ffb9ff;
  padding-top: 50px;
}
#index_nav, .talk_nav.talk_nav_bottom {
  margin-bottom: 0;
}
@media (min-width: 641px) {
  #kv {
    min-height: 680px;
  }
  #talk_wrap h2 {
    padding: 0 15%;
  }
  #talk_wrap h2 img {
    max-width: 100%;
  }
}
@media (max-width: 640px) {
  .content_wrap {
    padding: calc(50 / 640 * 100vw) 0;
  }
  #yodogawa, #talk_wrap {
    padding-left: 20px;
    padding-right: 20px;
  }
  #index_nav .title {
    padding: 0;
  }
  #index_nav .title img, #talk_wrap h2 img {
    width: 100vw;
    max-width: 100vw;
    margin-left: calc((100vw - 100%) / 2 * -1);
  }
  #information li .info_desc, #information_free li .info_desc {
    width: 360px;
    max-width: 90%;
  }
}