main .sub-heading{
  text-align: center;
  font-size: 300%;
}

main .caution-block{
  max-width: 950px;
  margin: auto;
  margin-top: 1rem;
}

/* 【検索ボックス・表示切り替え】==================== */
main .filter-container {
  margin-top: 2rem;
}

.filter-container .ttl{
  font-size: 150%;
}

.filter-container .from-wrapper{
  margin-top: .5rem;
}
.filter-container .input-field{
  border: 1px solid var(--color-dark);
}

.filter-container .btn-submit{
  display: inline-block;
  padding: .2rem .5rem .3rem;
  background-color: var(--color-dark);
  color: var(--color-white);
  font-size: 85%;
}

.filter-container .btn-showall{
  display: block;
  width: 100%;
  padding: .2rem 0 .3rem;
  margin-top: .5rem;
  background-color: var(--color-dark);
  color: var(--color-white);
  text-align: center;
}

/* デフォルトで全て表示 */
.music-list li {
  display: block;
}

/* 非表示用 */
.music-list .hidden {
  display: none!important;
}

/* 絞り込み結果なしメッセージ */
.filter-container .nothing {
  display: none;
  color: var(--color-red);
  margin-top: 2rem;
  font-weight: bold;
}


/* 【楽曲リスト】==================== */
main .music-list{
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.music-list li{
  position: relative;
  width: calc((100% - 3rem)/3);
  max-width: 400px;
  min-width: 300px;
  padding-bottom: 7.5rem;
  border: 1px solid var(--color-dark);
  background-color: var(--color-white);
  box-shadow: .25rem .25rem .25rem var(--color-middle);
}

.music-list .m-number{
  position: absolute;
  bottom: .5rem;
  right: 1rem;
  font-size: 85%;
}

.music-list .movie-block{
  width: 100%;
  margin: 0 auto;
  aspect-ratio: 16/9;
  position: relative;
}

.music-list .movie-block iframe{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.music-list .text-block{
  padding: 1rem;
}

.music-list .ttl{
  padding-left: .5rem;
  border-left: .5rem solid var(--color-middle);
  border-bottom: 1px solid var(--color-middle);
  font-size: 120%;
}

.music-list .time{
  text-align: right;
}

.music-list .type{
  display: inline-block;
  padding: 0 .5em;
  margin-right: .25rem;
  border-radius: 100vmax;
  background-color: var(--color-middle);
}

.music-list .desc{
  margin-top: .5rem;
  font-size: 85%;
}

.music-list .btn-download-wrapper{
  position: absolute;
  left: 50%;
  bottom: 2.5rem;
  transform: translate(-50%,0);
  width: 100%;
  text-align: center;
}

.music-list .btn-download{
  display: flex;
  justify-content: center;
  width: 80%;
  margin: auto;
  margin-top: .5rem;
  padding: .3em 0;
  border-radius: .25rem;
  border: 2px solid var(--color-dark);
  background-color: var(--color-dark);
  color: var(--color-white);
}

.music-list .btn-download:hover{
  background-color: var(--color-white);
  color: var(--color-dark);
}

.music-list .btn-download span{
  display: flex;
  gap: .5rem;
  align-items: center;
}

.music-list .btn-download span::before{
  content: "";
  display: inline-block;
  background: url(../assets/img/ico-download.svg) no-repeat center / cover;
  width: 1.5rem;
  height: 1.5rem; 
}

.music-list .btn-download span::after{
  content: "ダウンロードする";
  display: inline-block;
}

.music-list .btn-download:hover span::before {
  filter: brightness(0) saturate(100%) invert(20%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(50%) contrast(80%);
}

.music-list .date{
  position: absolute;
  bottom: .5rem;
  left: 1rem;
  font-size: 85%;
}

.music-list audio{
  width: 80%;
  height: 2rem;
}

/* 【広告リスト】==================== */
main .ad-list{
  container-type: inline-size;
  container-name: ad-container;
  display: flex;
  justify-content: center;
  gap: .5rem;
  flex-wrap: wrap;
  max-width: calc((468px * 3) + 1rem);
  margin: auto;
  padding: 1rem .5rem 2rem;
}

main .ad-list li{
  width: 400px;
}

main .ad-list li a{
  display: block;
  width: 100%;
  height: 100%;
}

@container ad-container (max-width: calc(400px * 2 + 0.5rem - 1px)) {
  .ad-list li:nth-child(n + 4){
    display: none;
  }
}