@charset "UTF-8";
@-ms-viewport {
  width: device-width;
}
/*--------------------------------------------------------------------------
CSS　カスタム設定(style.css)ver.1 2022.10.05
--------------------------------------------------------------------------*/
/*■■■■■■ 基本設定 ■■■■■■■*/
/*青緑*/
/*濃い青緑*/
/*濃いブルー*/
/*赤*/
/*■■■■■■ fadein ■■■■■■■*/
.fade-in {
  opacity: 0;
  -webkit-transition-duration: 1000ms;
          transition-duration: 1000ms;
}

.fade-in {
  opacity: 0;
  -webkit-transform: translateY(20px);
          transform: translateY(20px);
  -webkit-transition: opacity 1s ease-out, -webkit-transform 1s ease-out;
  transition: opacity 1s ease-out, -webkit-transform 1s ease-out;
  transition: opacity 1s ease-out, transform 1s ease-out;
  transition: opacity 1s ease-out, transform 1s ease-out, -webkit-transform 1s ease-out;
}

.fade-in.show {
  opacity: 1;
  -webkit-transform: translateY(0);
          transform: translateY(0);
}

.fade-in-up {
  -webkit-transform: translate(0, 60px);
          transform: translate(0, 60px);
}

.fade-in-down {
  -webkit-transform: translate(0, -60px);
          transform: translate(0, -60px);
}

.fade-in-left {
  -webkit-transform: translate(-60px, 0);
          transform: translate(-60px, 0);
}

.fade-in-right {
  -webkit-transform: translate(60px, 0);
          transform: translate(60px, 0);
}

.scroll-in {
  opacity: 1;
  -webkit-transform: translate(0, 0);
          transform: translate(0, 0);
}

/*■■■■■■ 主要タグ設定 ■■■■■■■*/
a:link, a:visited {
  color: #066468;
  -webkit-transition: 0.2s;
  transition: 0.2s;
}

a:hover, a:active {
  color: #24A2A7;
  -webkit-transition: 0.2s;
  transition: 0.2s;
}

/*■■■■■■ CONTENTS MAIN ■■■■■■■*/
.main-container {
  -webkit-box-flex: 1;
      -ms-flex: 1 1 auto;
          flex: 1 1 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  background: url(../images/bg-img-main.jpg) bottom center no-repeat;
  background-size: cover;
  position: relative;
  text-align: center;
}

.main-img-container {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  gap: 60px;
}

/* 画像コンテナ（任意） */
.main-image {
  margin: auto;
  display: inline-block;
  position: relative;
}

/* 1pxの白い線 + 四方に均等な白い光彩 */
.main-image img.book-img {
  margin: 20px;
  display: block;
  width: 100%;
  height: auto;
  max-width: 300px;
  border: 1px solid #fff; /* ← 1pxの白い線 */
  /* 均等な光彩（重ねがけで柔らかく広げる） */
  -webkit-filter: drop-shadow(0 0 6px rgba(0, 0, 0, 0.9));
          filter: drop-shadow(0 0 6px rgba(0, 0, 0, 0.9));
}

.icon-best-seller {
  position: absolute;
  bottom: -15px;
  left: -15px;
}
.icon-best-seller img {
  width: 130px;
  height: auto;
}

.main-head {
  margin: auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  gap: 20px;
}

.publication-date {
  color: #FFF;
  font-size: 2.4rem;
}

.main-title {
  margin: 5px 0;
  border-top: 2px solid #FFF;
  border-bottom: 2px solid #FFF;
}
.main-title img {
  margin: 5px auto;
  width: 100%;
  height: auto;
  max-width: 740px;
}

.main-autho-box {
  margin: 0 0 20px;
  text-align: right;
}

.main-author {
  font-size: 1.8rem;
  color: #FFF;
}

.main-read {
  font-size: 1.6rem;
  line-height: 1.8;
  font-weight: 500;
  color: #FFF;
  width: 100%;
  height: auto;
  max-width: 740px;
  text-align: left;
}

/* リード部分のブロック */
.sub-read-container {
  -ms-flex-negative: 0;
      flex-shrink: 0; /* 縮小せずそのままの高さを確保 */
  padding: 10px 0 20px;
  text-align: center;
  background-image: -webkit-gradient(linear, left top, right top, color-stop(20%, #066468), to(#24A2A7));
  background-image: linear-gradient(90deg, #066468 20%, #24A2A7);
}

.sub-read-box {
  display: inline-block;
  position: relative;
}
.sub-read-box h1 {
  color: #FFF;
  font-weight: 700;
  /* 光彩のような効果（4方向＋ぼかし） */
  text-shadow: 0 0 6px #066468, 0 0 12px #066468, 0 0 18px #066468, 0 0 24px #066468;
}
.sub-read-box h1 {
  margin: 0 auto 10px;
  display: inline-block;
  padding: 5px 10px;
  font-size: 4.4rem;
  font-family: "Noto Serif JP", serif;
  border-bottom: 1px solid #fff;
}
.sub-read-box h1 span {
  font-size: 3.8rem;
}
.sub-read-box p {
  margin: 5px 0;
  font-size: 2.4rem;
  line-height: 1.2;
  text-align: left;
  font-weight: 700;
  color: #FFDD00;
}
.sub-read-box p span {
  margin: 0 10px 0 0;
  display: inline-block;
  padding: 6px 12px;
  background-color: #FFF;
  border: 2px solid #FF0000;
  color: #333;
}

.campaign-bn {
  position: absolute;
  bottom: 5px;
  right: 0;
}
.campaign-bn img {
  width: 386px;
  height: 46px;
}

/*■■■■■■ コンテンツ共通 ■■■■■■■*/
.contents-block {
  margin: 100px 0;
  padding: 0;
}

.contents-in-block {
  margin: 0;
  padding: 40px 0;
}

.text-title {
  margin: 0 auto 40px;
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 3.8rem;
  text-align: center;
  color: #204E77;
  position: relative;
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  gap: 10px;
}
.text-title span {
  border-top: 1px solid #204E77;
  border-bottom: 1px solid #204E77;
}
.text-title:before {
  content: "";
  display: block;
  width: 100px;
  height: 100px;
  background: url(../images/dot-title-ai.png);
}

.text-read {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 2.2rem;
  color: #204E77;
}

.bg-ami {
  background-color: #DDE4EB;
}

/*購入ボタン*/
a.purchase-btn {
  margin: 100px auto 0;
  padding: 0 60px 0 40px;
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  width: auto;
  height: 100px;
  border-radius: 50px;
  background-color: #204E77; /* 通常 */
  color: #FFF000;
  font-size: 2.8rem;
  font-weight: 700;
  text-decoration: none;
  position: relative;
  -webkit-transition: background 0.3s ease;
  transition: background 0.3s ease;
  -webkit-box-shadow: 0 3px 10px #999;
          box-shadow: 0 3px 10px #999;
}
a.purchase-btn:hover {
  -webkit-transition: background 0.3s ease;
  transition: background 0.3s ease;
  background-color: #24A2A7;
}
a.purchase-btn::after {
  content: "";
  display: block;
  width: 21px;
  height: 18px;
  background: url(../images/dot-arrow.png) center center no-repeat;
  position: absolute;
  right: 30px;
  top: 50%;
  -webkit-transition: -webkit-transform 0.3s ease;
  transition: -webkit-transform 0.3s ease;
  transition: transform 0.3s ease;
  transition: transform 0.3s ease, -webkit-transform 0.3s ease;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
}

/*■■■■■■ ベクター調整 ■■■■■■■*/
.background-decoration {
  width: 100%;
  height: 80px;
  overflow: hidden;
  position: relative;
}

.background-decoration svg {
  width: 100%;
  height: 100%;
  display: block;
}

.radius-top {
  position: relative;
  z-index: 0;
}
.radius-top svg {
  position: absolute;
  top: -1px;
}

.radius-bottom {
  position: relative;
  z-index: 0;
  -webkit-transform: rotate(180deg);
          transform: rotate(180deg);
}
.radius-bottom svg {
  position: absolute;
  bottom: 1px;
}

/* 三角上ベクター設定 */
.svg-wrap {
  font-size: 16px; /* currentColor の参照になるための例 */
  color: #FFF; /* SVGの色をここで変えられます */
  width: 100%;
}

.svg-wrap svg {
  margin: -1px 0 60px;
  display: block;
  width: 100%;
  height: auto;
}

/*■■■■■■ #1 著者紹介 ■■■■■■■*/
.flex-box {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  gap: 40px;
}

.cercle-img-box {
  width: 240px;
  height: 240px;
  border-radius: 50%; /* 丸くする */
  overflow: hidden; /* はみ出した部分を隠す */
  display: inline-block; /* 必要に応じて block / inline-block */
  background: #eee; /* 画像読み込み前のプレースホルダ色 */
  vertical-align: middle;
}

.bg-takeya {
  margin: 0 0 auto;
  background: url(../images/takeya.webp) center center no-repeat;
  background-size: cover;
}

.about-author {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 30px;
  max-width: 560px;
}

.author-name {
  font-size: 2.4rem;
  font-weight: 500;
}
.author-name small {
  font-size: 1.6rem;
}

.publication-title {
  font-size: 2rem;
  font-weight: 700;
  font-family: "Noto Serif JP", serif;
}

.publication {
  padding-left: 1.5em; /* インデント調整 */
  list-style-type: disc;
}
.publication li {
  display: list-item; /* ← flex をやめる */
  list-style-position: outside; /* デフォルトでOK、insideにするとテキストに食い込む */
}

/*■■■■■■ #2 テーマとメッセージ ■■■■■■■*/
.message-box {
  margin: 20px auto;
  padding: 30px 40px;
  display: inline-block;
  border: 3px dotted #24A2A7;
  border-radius: 24px;
}

.message {
  display: inline-block;
}
.message li {
  margin: 4px 0;
  font-size: 2.2rem;
  font-weight: 500;
  text-align: left;
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
  gap: 10px;
}
.message li:before {
  content: "";
  display: block;
  width: 16px;
  height: 16px;
  border-radius: 8px;
  background-color: #24A2A7;
}

/*■■■■■■ #3 本の紹介 ■■■■■■■*/
.mokuji-flex-box {
  margin: 60px 0 0;
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 40px;
}

.mokuji {
  padding: 0 0 0 20px;
  text-align: left;
  border-left: 10px solid #24A2A7;
}
.mokuji dt {
  padding: 0 0 5px;
  font-size: 2.3rem;
  font-weight: 700;
  color: #204E77;
  border-bottom: 1px solid #204E77;
}

ul.mokuji-list {
  margin: 10px 0 5px;
  padding-left: 1.5em; /* インデント調整 */
}
ul.mokuji-list li {
  font-size: 2rem;
  line-height: 1.8;
  display: list-item; /* ← flex をやめる */
  list-style-position: outside; /* デフォルトでOK、insideにするとテキストに食い込む */
}

ul.list-dot {
  margin: 10px 0 5px;
  padding-left: 1.5em; /* インデント調整 */
  list-style-type: disc;
}
ul.list-dot li {
  font-size: 1.6rem;
  display: list-item; /* ← flex をやめる */
  list-style-position: outside; /* デフォルトでOK、insideにするとテキストに食い込む */
}

/*■■■■■■ #4 過去の書籍 ■■■■■■■*/
.book-list-box {
  margin: 60px auto 0;
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  gap: 30px;
}
.book-list-box ul {
  text-align: left;
}
.book-list-box ul li {
  font-weight: bold;
  font-size: 1.8rem;
  line-height: 1.8;
}

.book-list-ti {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  width: 160px;
  height: 160px;
  color: #FFF;
  font-weight: 700;
  background-color: #204E77;
}

.img-thumbs img {
  width: auto;
  height: 160px;
  border: 1px solid #666;
}

/*■■■■■■ #5 今後の展開（キャンペーン）■■■■■■■*/
.bg-campaign {
  padding: 0 0 20px;
  background-color: #DEF1F2;
}

.campaign-list {
  margin: 30px auto 0;
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 20px;
}
.campaign-list li {
  display: block;
  margin: 0;
  padding: 10px 50px;
  border-radius: 6px;
  background-color: #FFF;
  border: 2px solid #24A2A7;
  font-size: 2.4rem;
  font-weight: 700;
  /*font-family: "Noto Serif JP", serif;*/
  position: relative;
  -webkit-filter: drop-shadow(#24A2A7 0 0 0.3rem);
          filter: drop-shadow(#24A2A7 0 0 0.3rem);
}

/*===============================
■■　スマホ用　■■
===============================*/
/*------------(XS)------------*/
@media (min-width: 320px) and (max-width: 566px) {
  /*■■■■■■ CONTENTS MAIN (XS) ■■■■■■■*/
  .main-container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    background: url(../images/bg-img-main_sp.jpg) bottom center no-repeat;
    background-size: cover;
    position: relative;
    text-align: center;
  }
  .main-img-container {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .main-image img {
    margin: 40px auto 10px;
    max-width: 240px;
  }
  .main-head {
    margin: 0 15px;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 10px;
  }
  .book-dot-box {
    font-size: 2.4rem;
  }
  .publication-date {
    color: #FFF;
    font-size: 1.8rem;
  }
  .main-title {
    margin: 10px 15px;
    padding: 0;
  }
  .main-title img {
    margin: 10px auto;
    width: 100%;
    height: auto;
    max-width: 740px;
  }
  .main-autho-box {
    margin: 0 0 20px;
    text-align: center;
  }
  .main-author {
    font-size: 1.8rem;
    color: #FFF;
  }
  .main-read {
    padding: 0 15px 20px;
    font-size: 1.5rem;
  }
  /* リード部分のブロック */
  .sub-read-box h1 {
    margin: 0 auto 10px;
    display: inline-block;
    padding: 5px 10px;
    font-size: 3.4rem;
    font-family: "Noto Serif JP", serif;
    border-bottom: 1px solid #fff;
  }
  .sub-read-box h1 span {
    font-size: 2.8rem;
  }
  .sub-read-box h1 br {
    line-height: 0;
  }
  .sub-read-box p {
    margin: 5px 0;
    font-size: 2.4rem;
    line-height: 1.2;
    text-align: center;
    font-weight: 700;
    color: #FFDD00;
  }
  .sub-read-box p span {
    margin: 0 10px 0 0;
    display: inline-block;
    padding: 6px 12px;
    background-color: #FFF;
    border: 2px solid #FF0000;
    color: #333;
  }
  .campaign-bn {
    margin: 30px 0 0;
    position: static;
    display: block;
    width: 100%;
    text-align: center;
  }
  .campaign-bn a {
    display: inline-block;
  }
  .campaign-bn img {
    width: 340px;
    height: auto;
  }
  /*■■■■■■ ベクター調整 (XS) ■■■■■■■*/
  .background-decoration {
    width: 100%;
    height: 40px;
    overflow: hidden;
    position: relative;
  }
  .radius-top {
    margin-bottom: 40px;
  }
  /*■■■■■■ コンテンツ共通 ■■■■■■■*/
  .contents-block {
    margin: 60px 0;
  }
  .text-title {
    margin: 0 0 40px;
    font-size: 3rem;
  }
  .text-read {
    font-family: "Noto Serif JP", serif;
    font-weight: 500;
    font-size: 2rem;
  }
  .bg-ami {
    background-color: #E5F1FE;
  }
  /*購入ボタン*/
  a.purchase-btn {
    margin: 60px auto 0;
    padding: 0 60px 0 40px;
    height: 90px;
    border-radius: 45px;
    font-size: 2.4rem;
  }
  /*■■■■■■ #1 著者紹介 (XS) ■■■■■■■*/
  .flex-box {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    gap: 40px;
  }
  .about-author {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .author-name {
    font-size: 2.4rem;
    text-align: center;
  }
  .author-name small {
    font-size: 1.6rem;
  }
  /*■■■■■■ #2 テーマとメッセージ(XS) ■■■■■■■*/
  .message-box {
    margin: 20px auto;
    padding: 10px 15px;
    display: inline-block;
    border: 3px dotted #24A2A7;
    border-radius: 24px;
  }
  .message {
    display: inline-block;
  }
  .message li {
    margin: 10px 0;
    font-size: 1.8rem;
    font-weight: 500;
    text-align: left;
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: start;
        -ms-flex-pack: start;
            justify-content: flex-start;
    gap: 10px;
  }
  .message li:before {
    margin: 9px 0 auto;
    content: "";
    display: block;
    width: 16px;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    background-color: #24A2A7;
  }
  /*■■■■■■ #3 本の紹介(XS) ■■■■■■■*/
  .mokuji-flex-box {
    margin: 60px 0 0;
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 40px;
  }
  .mokuji {
    padding: 0 0 0 15px;
    text-align: left;
    border-left: 8px solid #24A2A7;
  }
  .mokuji dt {
    font-size: 2rem;
  }
  ul.mokuji-list {
    margin: 10px 0 5px;
    padding-left: 1em; /* インデント調整 */
  }
  ul.mokuji-list li {
    padding: 5px 0;
    font-size: 1.6rem;
    line-height: 1.4;
    display: list-item; /* ← flex をやめる */
    list-style-position: outside; /* デフォルトでOK、insideにするとテキストに食い込む */
  }
  ul.mokuji-list li span {
    font-weight: 600;
    display: block;
    font-size: 1.8rem;
  }
  ul.list-dot {
    margin: 10px 0 5px;
    padding-left: 1em; /* インデント調整 */
    list-style-type: disc;
  }
  ul.list-dot li {
    font-size: 1.6rem;
    display: list-item; /* ← flex をやめる */
    list-style-position: outside; /* デフォルトでOK、insideにするとテキストに食い込む */
  }
  /*■■■■■■ #4 過去の書籍(XS) ■■■■■■■*/
  .book-list-box {
    margin: 40px auto;
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .book-list-box ul {
    text-align: left;
  }
  .book-list-box ul li {
    font-weight: bold;
    font-size: 1.6rem;
    line-height: 1.8;
  }
  .book-list-ti {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    width: 150px;
    height: 60px;
    color: #FFF;
    font-weight: 700;
    background-color: #204E77;
  }
  /*■■■■■■ #5 今後の展開（キャンペーン）(XS)■■■■■■■*/
  .bg-campaign {
    padding: 0 0 20px;
    background-color: #DEF1F2;
  }
  .campaign-list {
    margin: 30px auto 0;
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .campaign-list li {
    display: block;
    width: 100%;
    margin: 0;
    padding: 10px 30px;
    border-radius: 6px;
    background-color: #FFF;
    border: 2px solid #24A2A7;
    font-size: 1.8rem;
    font-weight: 700;
    /*font-family: "Noto Serif JP", serif;*/
    position: relative;
    -webkit-filter: drop-shadow(#24A2A7 0 0 0.3rem);
            filter: drop-shadow(#24A2A7 0 0 0.3rem);
  }
} /*xs*/
/*------------(SM)------------*/
@media (min-width: 567px) and (max-width: 767px) {
  /*■■■■■■ CONTENTS MAIN (SM) ■■■■■■■*/
  .main-container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    background: url(../images/bg-img-main_sp.jpg) bottom center no-repeat;
    background-size: cover;
    position: relative;
    text-align: center;
  }
  .main-img-container {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .main-image img {
    margin: 40px auto 10px;
    max-width: 240px;
  }
  .main-head {
    margin: 0 15px;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 10px;
  }
  .book-dot-box {
    font-size: 2.4rem;
  }
  .publication-date {
    color: #FFF;
    font-size: 1.8rem;
  }
  .main-title {
    margin: 10px 15px;
    padding: 0;
  }
  .main-title img {
    margin: 10px auto;
    width: 100%;
    height: auto;
    max-width: 740px;
  }
  .main-autho-box {
    margin: 0 0 20px;
    text-align: center;
  }
  .main-author {
    font-size: 1.8rem;
    color: #FFF;
  }
  .main-read {
    padding: 0 15px 20px;
    font-size: 1.5rem;
  }
  /* リード部分のブロック */
  .sub-read-box h1 {
    margin: 0 auto 10px;
    display: inline-block;
    padding: 5px 10px;
    font-size: 3.4rem;
    font-family: "Noto Serif JP", serif;
    border-bottom: 1px solid #fff;
  }
  .sub-read-box h1 span {
    font-size: 2.8rem;
  }
  .sub-read-box h1 br {
    line-height: 0;
  }
  .sub-read-box p {
    margin: 5px 0;
    font-size: 2.4rem;
    line-height: 1.2;
    text-align: center;
    font-weight: 700;
    color: #FFDD00;
  }
  .sub-read-box p span {
    margin: 0 10px 0 0;
    display: inline-block;
    padding: 6px 12px;
    background-color: #FFF;
    border: 2px solid #FF0000;
    color: #333;
  }
  .campaign-bn {
    margin: 30px 0 0;
    position: static;
    display: block;
    width: 100%;
    text-align: center;
  }
  .campaign-bn a {
    display: inline-block;
  }
  .campaign-bn img {
    width: 340px;
    height: auto;
  }
  /*■■■■■■ ベクター調整 (SM) ■■■■■■■*/
  .background-decoration {
    width: 100%;
    height: 40px;
    overflow: hidden;
    position: relative;
  }
  .radius-top {
    margin-bottom: 40px;
  }
  /*■■■■■■ コンテンツ共通 ■■■■■■■*/
  .contents-block {
    margin: 60px 0;
  }
  .text-title {
    margin: 0 0 40px;
    font-size: 3rem;
  }
  .text-read {
    font-family: "Noto Serif JP", serif;
    font-weight: 500;
    font-size: 2rem;
  }
  .bg-ami {
    background-color: #E5F1FE;
  }
  /*購入ボタン*/
  a.purchase-btn {
    margin: 60px auto 0;
    padding: 0 60px 0 40px;
    height: 90px;
    border-radius: 45px;
    font-size: 2.4rem;
  }
  /*■■■■■■ #1 著者紹介 (SM) ■■■■■■■*/
  .flex-box {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    gap: 40px;
  }
  .about-author {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .author-name {
    font-size: 2.4rem;
    text-align: center;
  }
  .author-name small {
    font-size: 1.6rem;
  }
  /*■■■■■■ #2 テーマとメッセージ(SM) ■■■■■■■*/
  .message-box {
    margin: 20px auto;
    padding: 10px 15px;
    display: inline-block;
    border: 3px dotted #24A2A7;
    border-radius: 24px;
  }
  .message {
    display: inline-block;
  }
  .message li {
    margin: 10px 0;
    font-size: 1.8rem;
    font-weight: 500;
    text-align: left;
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: start;
        -ms-flex-pack: start;
            justify-content: flex-start;
    gap: 10px;
  }
  .message li:before {
    margin: 9px 0 auto;
    content: "";
    display: block;
    width: 16px;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    background-color: #24A2A7;
  }
  /*■■■■■■ #3 本の紹介(SM) ■■■■■■■*/
  .mokuji-flex-box {
    margin: 60px 0 0;
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 40px;
  }
  .mokuji {
    padding: 0 0 0 15px;
    text-align: left;
    border-left: 8px solid #24A2A7;
  }
  .mokuji dt {
    font-size: 2rem;
  }
  ul.mokuji-list {
    margin: 10px 0 5px;
    padding-left: 1em; /* インデント調整 */
  }
  ul.mokuji-list li {
    padding: 5px 0;
    font-size: 1.6rem;
    line-height: 1.4;
    display: list-item; /* ← flex をやめる */
    list-style-position: outside; /* デフォルトでOK、insideにするとテキストに食い込む */
  }
  ul.mokuji-list li span {
    font-weight: 600;
    display: block;
    font-size: 1.8rem;
  }
  ul.list-dot {
    margin: 10px 0 5px;
    padding-left: 1em; /* インデント調整 */
    list-style-type: disc;
  }
  ul.list-dot li {
    font-size: 1.6rem;
    display: list-item; /* ← flex をやめる */
    list-style-position: outside; /* デフォルトでOK、insideにするとテキストに食い込む */
  }
  /*■■■■■■ #4 過去の書籍(SM) ■■■■■■■*/
  .book-list-box {
    margin: 40px auto;
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .book-list-box ul {
    text-align: left;
  }
  .book-list-box ul li {
    font-weight: bold;
    font-size: 1.6rem;
    line-height: 1.8;
  }
  .book-list-ti {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    width: 150px;
    height: 60px;
    color: #FFF;
    font-weight: 700;
    background-color: #204E77;
  }
  /*■■■■■■ #5 今後の展開（キャンペーン）(SM)■■■■■■■*/
  .bg-campaign {
    padding: 0 0 20px;
    background-color: #DEF1F2;
  }
  .campaign-list {
    margin: 30px auto 0;
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .campaign-list li {
    display: block;
    width: 100%;
    margin: 0;
    padding: 10px 30px;
    border-radius: 6px;
    background-color: #FFF;
    border: 2px solid #24A2A7;
    font-size: 1.8rem;
    font-weight: 700;
    /*font-family: "Noto Serif JP", serif;*/
    position: relative;
    -webkit-filter: drop-shadow(#24A2A7 0 0 0.3rem);
            filter: drop-shadow(#24A2A7 0 0 0.3rem);
  }
} /*SM*/
/*------------(MD)------------*/
@media (min-width: 768px) and (max-width: 1023px) {
  /*■■■■■■ CONTENTS MAIN (MD) ■■■■■■■*/
  .main-container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    background: url(../images/bg-img-main_sp.jpg) bottom center no-repeat;
    background-size: cover;
    position: relative;
    text-align: center;
  }
  .main-img-container {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
  }
  .main-image img {
    margin: 40px auto 10px;
    max-width: 280px;
  }
  .main-head {
    margin: 0 15px;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 10px;
  }
  .book-dot-box {
    font-size: 2.4rem;
  }
  .publication-date {
    color: #FFF;
    font-size: 1.8rem;
  }
  .main-title {
    margin: 10px 15px;
    padding: 0;
  }
  .main-title img {
    margin: 10px auto;
    width: 100%;
    height: auto;
    max-width: 740px;
  }
  .main-autho-box {
    margin: 0 0 20px;
    text-align: center;
  }
  .main-author {
    font-size: 1.8rem;
    color: #FFF;
  }
  .main-read {
    padding: 0 15px 20px;
    font-size: 1.5rem;
  }
  /* リード部分のブロック */
  .sub-read-box h1 {
    margin: 0 auto 10px;
    display: inline-block;
    padding: 5px 10px;
    font-size: 4.2rem;
    font-family: "Noto Serif JP", serif;
    border-bottom: 1px solid #fff;
  }
  .sub-read-box h1 span {
    font-size: 3.4rem;
  }
  .sub-read-box h1 br {
    line-height: 0;
  }
  .sub-read-box p {
    margin: 5px 0;
    font-size: 2.4rem;
    line-height: 1.2;
    text-align: center;
    font-weight: 700;
    color: #FFDD00;
  }
  .sub-read-box p span {
    margin: 0 10px 0 0;
    display: inline-block;
    padding: 6px 12px;
    background-color: #FFF;
    border: 2px solid #FF0000;
    color: #333;
  }
  .campaign-bn {
    margin: 30px 0 0;
    position: static;
    display: block;
    width: 100%;
    text-align: center;
  }
  .campaign-bn a {
    display: inline-block;
  }
  .campaign-bn img {
    width: 340px;
    height: auto;
  }
} /*MD*/
/*------------(LG)------------*/
/*LG*/
/*------------(XL)------------*/
@media (min-width: 1216px) {
  .header-img-block {
    width: 100%;
    height: 0;
    margin: 0;
    padding: 46.25% 0 0 0;
    position: relative;
  }
} /*XL*/