html, body {
    overflow-x: hidden;
    position: relative;
    width: 100%;
}

h1 {
  font-family: 'Sawarabi Mincho', 'Shippori Mincho B1', 'BIZ UDPMincho', serif;
  font-size: 1.6rem !important;
  color: #fff;
}
h2 {
  font-family: 'Sawarabi Mincho', 'Shippori Mincho B1', 'BIZ UDPMincho', serif;
  font-size: 2.0rem !important;
  font-weight: 800!important;
 
}
h3 {
  font-family: 'Sawarabi Mincho', 'Shippori Mincho B1', 'BIZ UDPMincho', serif;
  font-size: 2.0rem !important;
  margin: 20px auto;
}
p{
  font-weight: 800!important;
}
.gx-5 {
  margin-bottom: 30px;
}
.mb-10 {
  margin-bottom: 20px !important;
}
/*
.px-5 {
  margin: 30px auto!important;
}
*/
.margin40 {
  margin: 40px auto;
  text-align: left;
}
.info {
  width: 100%;
}

.tw-icon {
  max-width: 18px !important;
  margin-left: 10px;
}
.fb-icon {
  max-width: 100% !important;
  color: #fff;
}

@media screen and (min-width: 992px) {
  .container {
    width: 960px;
  }
}

.mainImg {
  width: 100%;
}
.lead {
  font-size: .9rem !important;
  font-weight: 800 !important;
  color: #000 !important;
}
.bg-gradient-primary-to-secondary {
  background: #DEDEDE !important;
}

/* ========================================================
   ピックアップ書籍レイアウト：Bootstrapのグリッドに最適化
   ======================================================== */
.bookList {
  overflow: hidden;
  list-style: none;
  margin: 0 auto;
  /* 古い手動flexは削除（Bootstrapの row が自動で3段組みを作ります） */
}

.bookList li {
  text-align: center;
}

.jkt, .numTitle, .ttl, .dl-btn, .spec {
  font-family: Verdana, Roboto, "ヒラギノ角ゴ ProN W6", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, sans-serif;
  width: 100%;
  text-align: left;
  margin: 5px 0px 10px;
}
.spec {
  width: 100%;
  text-align: left;
  font-size: .8em;
  word-break: break-all;
  overflow-wrap: break-word;
}
.cap {
  color: #000;
  font-family: Verdana, Roboto, "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, sans-serif;
  font-size: .9em;
  font-weight: 300;
  margin-top: 10px;
  text-align: center;
}
.cap2 {
  color: #000;
  font-family: Verdana, Roboto, "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, sans-serif;
  font-size: .8em;
  font-weight: 300!important;
  margin-bottom: 20px;
  text-align: left;
}
.numTitle {
  width: 100% !important;
  text-align: left;
}
.itemImg {
  height: 100%;
}
.audioList {
  overflow: hidden;
  max-width: 860px;
}
.audioList dl {
  display: flex;
  align-items: center;
  border-bottom: dotted 1px #666;
  margin-top: 0px;
}
.audioList dd {
  width: 80%;
  text-align: left;
  margin-bottom: 20px;
}
.audioList dt {
  /*font-family: helvetica;*/
  font-weight: 400;
  font-size: 1.1em;
  width: 20%;
  margin-bottom: 20px;
  line-height: 1.4em;
  padding-right: 10px;
}
.amz {
  display: block;
  margin-top: 10px;
  font-size: 0.9em;
}
.bg-black {
  background-color: #333;
}

/* ========================================================
   タブレットサイズ（1024px以下）の設定
   ======================================================== */
@media screen and (max-width: 1024px) {
  .px-5 {
    padding-right: 1rem !important;
    padding-left: 1rem !important;
  }
  .spec, .ttl {
    width: 100%;
    font-size: .8em;
    margin: 10px 0;
  }
}

/* ========================================================
   スマホサイズ（720px以下）の設定
   ======================================================== */
@media screen and (max-width: 720px) {
  iframe {
    max-width: 100% !important;
  }
  p{
    font-size: .9em;
  }
  #mainNav .navbar-brand {
    white-space: normal;
    font-size: 1.1rem !important;
    max-width: 90%;
  }
  .container {
    width: 100%;
  }
  .gx-5 {
    margin-bottom: 10px;
  }
  .px-5 {
    padding-right: 1rem !important;
    padding-left: 1rem !important;
  }
  h1 {
    font-size: 1.4rem !important;
    font-weight: 600;
  }
  h2 {
    font-size: 1.4rem !important;
    font-weight: 600!important;
  }
  h3 {
    font-size: 1.2rem !important;
    margin: 10px auto;
  }
  .text-white {
    font-size: .9em;
    font-weight: 300;
    margin-bottom:30px;
  }
  .mainImg {
    margin: 80px auto 0px;
    width: 100%;
  }
  .audioList dd {
    width: 70%;
  }
  .audioList dt {
    width: 30%;
  }
  .mb-3 {
    margin-bottom: 2rem !important;
  }
  .audioList {
    font-size: .8em;
  }
  .tw-icon {
  max-width: 18px!important;
  margin-left: 5px;
  }
  /* スマホの時だけ強制縦並びと余白を制御 */
  .bookList li {
    width: 80% !important;
    margin: 40px auto;
  }
  .jkt {
    max-width: 80%;
    margin: 0 auto;
    display: block;
  }
  .ttl {
    width: 100%; 
    box-sizing: border-box;
    margin: 10px 0 0;
    font-size: 1.1em;
  }
    .spec {
    width: 100%; 
    box-sizing: border-box;
    margin: 10px 0 0;
    font-size: .8em;
  }
}