@charset "UTF-8";
/*--------------------- .inner ---------------------*/
.inner {
  margin: 0 auto;
  padding-bottom: 70px;
  width: 1200px;
}

/*--------------------- .img ---------------------*/
img.img {
  width: 100%;
}

#sec.arena {
  padding: 160px 0 0;
}

/*--------------------- .arena_mv ---------------------*/
.arena_mv {
  background: url(../img/arena/mv.jpg) center bottom no-repeat;
  background-size: cover;
  margin-bottom: 75px;
  overflow: hidden;
  padding-bottom: 50%;
  position: relative;
}

/*--------------------- .arena_ttl ---------------------*/
.arena_ttl01 {
  font-size: 30px;
  font-weight: normal;
  line-height: 1.8;
  margin-bottom: 40px;
  text-align: center;
}
.arena_ttl02 {
  color: #fff;
  font-size: 22px;
  font-weight: normal;
  padding: 10px 0 20px;
}

/*--------------------- .tx ---------------------*/
.tx.center {
  font-size: 16px;
  line-height: 1.8;
  text-align: center;
}
.tx.right {
  font-size: 16px;
  margin: 10px 0 20px;
  text-align: right;
}
.bg_black {
  background-color: #000;
}
.box_inr {
  
}

/*--------------------- .arena_list ---------------------*/
.arena_list {
  display: flex;
  justify-content: space-between;
}
.list_inr {
  width: 29%;
}
.list_inr > div {
  text-align: center;
}
.list_inr > div + div {
  padding-top: 20px;
}
.arena_caption {
  color: #fff;
  display: block;
  margin-bottom: 10px;
}


.arena_logo_img {
  margin: 0 auto;
  padding-top: 100px;
  width: 400px;
}



@media only screen and (max-width: 1200px) {
  /*--------------------- .inner ---------------------*/
  .inner {
    padding: 0 10px 50px;
    width: 100%;
  }
}
@media only screen and (max-width: 800px) {
  .arena_mv {
    margin-bottom: 60px;
  }
  #sec.arena {
    padding: 65px 0 0;
  }
  .arena_ttl01 {
    font-size: 22px;
    line-height: 1.6;
    margin-bottom: 30px;
    padding: 0 10px;
  }
  .arena_ttl02 {
    font-size: 18px;
    text-align: center;
  }
  .tx.center {
    font-size: 14px;
    line-height: 1.6;
  }
  .arena_list {
    flex-wrap: wrap;
  }
  .list_inr {
    width: 100%;
  }
  .list_inr + li {
    margin-top: 40px;
  }
  .arena_logo_img {
    padding-top: 80px;
    width: 100%;
  }
}