@charset "utf-8";
@media print, screen and (min-width:781px) {
  .cross_talk-main{
    background-image: url("../img/main_pc.jpg");
  }
}
@media screen and (max-width: 780px) {
  .cross_talk-main{
    background-image: url("../img/main_sp.jpg");
  }
}


@media print, screen and (min-width:781px) {
  #cross_talk-section1 .talk-heading-block{
    background-image: url("../img/phase01_main_pc.jpg");
  }
  #cross_talk-section2 .talk-heading-block{
    background-image: url("../img/phase02_main_pc.jpg");
  }
  #cross_talk-section3 .talk-heading-block{
    background-image: url("../img/phase03_main_pc.jpg");
  }
  #cross_talk-section4 .talk-heading-block{
    background-image: url("../img/phase04_main_pc.jpg");
  }
}
@media screen and (max-width: 780px) {
  #cross_talk-section1 .talk-heading-block:before{
    background-image: url("../img/phase01_main_sp.jpg");
  }
  #cross_talk-section2 .talk-heading-block:before{
    background-image: url("../img/phase02_main_sp.jpg");
  }
  #cross_talk-section3 .talk-heading-block:before{
    background-image: url("../img/phase03_main_sp.jpg");
  }
  #cross_talk-section4 .talk-heading-block:before{
    background-image: url("../img/phase04_main_sp.jpg");
  }
}