*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  width:100%;
  min-height:100%;
  font-family:"Noto Sans JP", sans-serif;
}

.page{
  position:relative;
  width:100%;
  min-height:100svh;
  padding:24px 36px;
  overflow:hidden;
}

@media (max-width:480px){

  .page{
    padding:16px;
  }

}

.bg-image{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:-1;
}

/* ロゴ */
.logo{
  width:100%;
  max-width:600px;
  margin:0 auto;
}  

.logo img{
  width:250px;
  display:block;
}

@media (max-width:480px){

  .logo{
    max-width:100%;
  }

  .logo img{
    width:120px;
  }

}

/* 配信先リスト */
.section-streaming{
  width:100%;
  max-width:600px;
  margin:60px auto;
}

.section-streaming img{
  width:60%;
  display:block;
  margin:16px auto;
}

.stream-button{
  position:relative;
  display:block;
  width:100%;
  max-width:600px;
  margin:0 auto 16px;
  text-decoration:none;
  transition:transform .12s ease;
  transform-origin:center center;
}

.stream-button:active{
  transform:scale(.97);
}

.btn-bg{
  width:100%;
  display:block;
}

.stream-button > span{
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%, -50%);
  color:#fff;
  white-space:nowrap;
}

.stream-label{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  width:90%;
  text-align:center;
}

.stream-label .line1{
  display:flex;
  align-items:baseline;
  justify-content:center;
  gap:8px;
}

.stream-label .platform{
  font-size:22px;
  font-weight:700;
  line-height:1;
}

.stream-label .subplatform{
  font-size:16px;
  font-weight:500;
  line-height:1;
}

.stream-label .region{
  margin-top:4px;
  font-size:14px;
  font-weight:500;
  line-height:1.5;
}

@media (max-width:480px){
  .section-streaming{
    margin:16px auto 24px;
  }

  .section-streaming img{
    margin:24px auto 0;
  }

  .stream-label{
    width:96%;
  }

  .stream-label .line1{
    gap:4px;
  }

  .stream-label .platform{
    font-size:16px;
  }

  .stream-label .subplatform{
    font-size:14px;
  }

  .stream-label .region{
    font-size:12px;
  }
}

/* アコーディオン対応 */
.region-accordion{
  width:100%;
  max-width:600px;
  margin:0 auto 16px;
  display:none;
}

.region-accordion.has-item{
  display:block;
}

.accordion-head{
  width:100%;
  padding:0;
  border:0;
  background:none;
  cursor:pointer;
  display:block;
}

.accordion-frame{
  width:100%;
  display:block;
}

.accordion-middle{
  background:#000;
  min-height:56px;
  padding:0 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

.accordion-title,
.accordion-icon{
  color:#fff;
  font-size:28px;
  font-weight:700;
  line-height:1.8;
}


.accordion-icon{
  font-size:36px;
}

.accordion-body{
  display:none;
  background:none;
  padding:0;
}

.region-accordion.is-open .accordion-body{
  display:block;
}

.accordion-content{
  background:#000;
  padding:16px 48px 16px;
}

.accordion-content .stream-button:last-child{
  margin-bottom:0;
}

.accordion-link .btn-bg{
  display:none;
}


.accordion-link .stream-label{
  display:block;
  width:100%;
  text-align:left;
}

.accordion-link .line1{
  display:block;
}

.accordion-link .platform,
.accordion-link .subplatform,
.accordion-link > span{
  position:static;
  transform:none;
  color:#fff;
  font-size:18px;
  font-weight:700;
  line-height:1.4;
  text-decoration:underline;
  white-space:normal;
}

@media (max-width:480px){
  .accordion-middle{
    min-height:24px;
    padding:0 32px;
  }

  .accordion-title{
    font-size:22px;
  }

  .accordion-icon{
    font-size:28px;
  }

  .accordion-content{
    padding:16px 32px 16px;
  }
  
  .accordion-link .platform,
  .accordion-link .subplatform,
  .accordion-link > span{
    font-size:16px;
  }

}

/* backボタン */
.back-button{
  position:fixed;
  bottom:20px;
  left:24px;
  z-index:100;
  left:max(24px, calc((100vw - 600px) / 2));
}

.back-button img{
  width:200px;
  display:block;
  transition:transform .12s ease, opacity .12s ease;
  will-change:transform;
}

.back-button:active img{
  transform:translateY(2px) scale(.97);
  opacity:.85;
}

@media (max-width:480px){

  .back-button{
    max-width:100%;
  }

  .back-button img{
    width:120px;
  }

}


/* コピーライト */
.copyright{
  width:100%;
  max-width:600px;
  margin:24px auto;
  text-align:center;
  font-size:10px;
  line-height:1.5;
  color:#fff;
}

@media (max-width:480px){

  .copyright{
    margin:16px auto;
  }
}