@charset "UTF-8";

html {
  font-size: 62.5%;
}

body {
  background-size: cover;
  color: #000;
  font-size: 1.4rem;
  font-family: "游明朝", YuMincho, "ヒラギノ明朝 ProN W3", "Hiragino Mincho ProN", "HG明朝E", "ＭＳ Ｐ明朝", "ＭＳ 明朝", serif;
  margin: 0;
  position: relative;
}

.pc-hide {
  display: none;
}


header .top {
  width: 100vw;
  height: 100vh;
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
}
header .bg_photo {
  background-image: url(http://oshika-hanto.com/images/oshika_top.png);
  background-size: cover;
  background-position: center;
}
header .top .top_logo {
  width: 27%;
}
/*
header .top {
  position: relative;
  line-height: 0;
}
header .oshika_top {
  width: 100%;
}
header .top_logo {
  position: absolute;
  top: 320px;
  width: 27%;
  left: 35.6%;
}
header .copy {
  position: absolute;
  top: 430px;
  width: 9%;
  left: 59%;
}
*/

.movie_img video {
  width: 100%;
}

.main_explain {
  margin: 130px auto;
  width: 83%;
  overflow: hidden;
  margin-left: 9.5%;
}
.main_explain .first {
  width: 62%;
  float: left;
  margin-right: -3%;
  margin-left: 0px;
}
.main_explain .second {
  width: 41%;
  float: left;
  margin-right: 0px;
  margin-top: 30px;
}
.main_explain .second img {
  width: 100%;
}
.main_explain .first .main_title {
  font-size: 3.9rem;
  letter-spacing: 7.8px;
  line-height: 2.2;
  font-weight: normal;
  margin-top: 0;
  margin-bottom: 0;
}
.main_explain .first .main_txt {
  font-size: 1.9rem;
  letter-spacing: 2.3px;
  font-weight: normal;
  line-height: 2.4;
  margin-top: 35px;
  margin-left: 7px;
}

.two_img {
  position: relative;
  line-height: 0;
}
.two_img .up_img {
  width: 100%;
}
.two_img .down_img {
  width: 100%;
}
.two_img .left_logo {
  width: 27%;
  position: absolute;
  top: 39%;
  left: 15%;
}
.two_img .right_logo {
  width: 27%;
  position: absolute;
  top: 39%;
  right: 15%;
}

.simple_explain {
  margin: 130px auto 145px;
  width: 882px;
}
.simple_explain .h2_title {
  font-size: 3.9rem;
  letter-spacing: 6px;
  line-height: 2.2;
  font-weight: normal;
  margin-top: 0;
  margin-bottom: 0;
}
.simple_explain .main_txt {
  font-size: 1.9rem;
  letter-spacing: 1.5px;
  font-weight: normal;
  line-height: 2.4;
  margin-top: 40px;
}

.composer {
  margin: 105px auto 100px;
  text-align: center;
}
.composer .participant {
  font-size: 1.8rem;
  letter-spacing: 3.2px;
  line-height: 2.1;
}
.composer .participant h3 {
  font-weight: normal;
  margin-bottom: 5px;
}
.composer .participant p {
  margin-top: 0;
}
.composer .party {
  margin-top: 50px;
  margin-bottom: 50px;
  font-size: 1.2rem;
  line-height: 1;
  letter-spacing: 0.5px;
}
.composer .inquiry {
  font-size: 2rem;
  letter-spacing: 2.8px;
  line-height: 2.1;
}
.composer .inquiry span a {
  text-decoration: none;
  border-bottom: 1px solid #fff;
  color: #000;
}

.composer .inquiry a {
  position: relative;
  display: inline-block;
  transition: .3s;
}
.composer .inquiry a::before,
.composer .inquiry a::after {
  position: absolute;
  left: 0;
  content: '';
  width: 0;
  height: 1px;
  background-color: #000;
  transition: .3s;
}
.composer .inquiry a::before {
  top: 0;
}
.composer .inquiry a::after {
  bottom: 0;
}

.composer .inquiry a:hover::after {
  width: 100%;
}



footer {
  text-align: center;
  margin: 95px auto 100px;
}
footer img {
  width: 140px;
  margin-left: 6px;
}
footer p {
  margin-top: 29px;
  font-size: 1.2rem;
  letter-spacing: 0.9px;
}

#pageTop {
  position: fixed;
  bottom: 50px;
  right: 32px;
}

#pageTop img {
  width: 90px;
}

/* 640pixel start */
@media screen and ( max-width : 640px ){

  .sp-hide {
    display: none;
  }

  .pc-hide {
    display: block;
  }

  header .top .top_logo {
    width: 40%;
  }

/*
  header .top {
    position: relative;
    line-height: 0;
  }
  header .oshika_top {
    width: 100%;
  }
  header .top_logo {
    position: absolute;
    top: 181px;
    width: 40%;
    left: 30%;
  }
  header .copy {
    position: absolute;
    top: 290px;
    width: 25%;
    left: 56%;
  }
*/
  .main_explain {
    margin: 50px auto;
    width: 100%;
    overflow: hidden;
  }
  .main_explain .first {
    width: 90%;
    clear: both;
    margin-right: 0;
    margin-left: 0;
    padding-left: 5%;
  }
  .main_explain .second {
    width: 90%;
    clear: both;
    padding-left: 5%;
    margin-top: 20px;
  }
  .main_explain .second img {
    width: 100%;
  }
  .main_explain .first .main_title {
    font-size: 2.3rem;
    letter-spacing: 2.1px;
    line-height: 2.2;
    font-weight: normal;
    margin-top: 0;
    margin-bottom: 0;
  }
  .main_explain .first .main_txt {
    font-size: 1.3rem;
    letter-spacing: 0.9px;
    font-weight: normal;
    line-height: 2.2;
  }

  .two_img {
    position: relative;
    line-height: 0;
  }
  .two_img .up_img {
    width: 100%;
  }
  .two_img .down_img {
    width: 100%;
  }
  .two_img .left_logo {
    width: 30%;
    position: absolute;
    top: 41%;
    left: 15%;
  }
  .two_img .right_logo {
    width: 30%;
    position: absolute;
    top: 41%;
    right: 15%;
  }

  .simple_explain {
    margin: 50px auto;
    width: 90%;
    padding-left: 5%;
  }
  .simple_explain .h2_title {
    font-size: 2.3rem;
    letter-spacing: 2.1px;
    line-height: 2.2;
    font-weight: normal;
    margin-top: 0;
    margin-bottom: 0;
  }
  .simple_explain .main_txt {
    font-size: 1.3rem;
    letter-spacing: 0.9px;
    font-weight: normal;
    line-height: 2.2;
  }


  .composer {
    margin: 50px auto;
    text-align: center;
  }
  .composer .participant {
    font-size: 1.8rem;
    letter-spacing: 3.2px;
    line-height: 2.1;
  }
  .composer .participant h3 {
    font-weight: normal;
    margin-bottom: 5px;
  }
  .composer .participant p {
    margin-top: 0;
  }
  .composer .party {
    margin-top: 50px;
    margin-bottom: 50px;
    font-size: 1.2rem;
    line-height: 1;
    letter-spacing: 0.1px;
  }
  .composer .inquiry {
    font-size: 1.8rem;
    letter-spacing: 3.2px;
    line-height: 2.1;
  }
  .composer .inquiry span a {
    text-decoration: none;
    border-bottom: 1px solid #fff;
    color: #000;
  }
  .composer .inquiry a:hover {
    border-bottom: 1px solid #ccc;
  }


  footer img {
    width: 90px;
  }

  #pageTop img {
    width: 70px;
  }
}