/** Shopify CDN: Minification failed

Line 7:0 Unexpected "`"

**/

```css
@charset "UTF-8";

/* =========================================================
   妊娠力の教科書
   共通CSS
========================================================= */

:root {
  --textbook-teal: #087f89;
  --textbook-teal-dark: #066b73;
  --textbook-teal-soft: #eaf5f5;
  --textbook-teal-pale: #f4fafa;

  --textbook-pink: #efaaa9;
  --textbook-pink-soft: #fff4f3;

  --textbook-gold: #c9a35b;
  --textbook-gold-soft: #f5ead4;

  --textbook-ink: #33383a;
  --textbook-muted: #687276;
  --textbook-line: #dfe8e9;

  --textbook-paper: #ffffff;
  --textbook-page: #f7f9f9;

  --textbook-serif:
    "Noto Serif JP",
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif;

  --textbook-sans:
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    sans-serif;

  --textbook-header-h: 62px;
  --textbook-breadcrumb-h: 38px;
  --textbook-bottom-nav-h: 64px;
}


/* =========================================================
   BASE RESET
========================================================= */

html {
  margin: 0;
  padding: 0;

  width: 100%;

  background: var(--textbook-page);

  scroll-behavior: smooth;
}


body {
  margin: 0 !important;
  padding: 0 !important;

  width: 100%;
  min-height: 100vh;

  background: var(--textbook-page);

  overflow-x: hidden;
}


.textbook-page,
.textbook-page *,
.textbook-page *::before,
.textbook-page *::after {
  box-sizing: border-box;
}


.textbook-page {
  width: 100%;

  margin: 0;
  padding: 0;

  color: var(--textbook-ink);

  font-family: var(--textbook-sans);

  font-size: 17px;
  line-height: 1.9;

  background: var(--textbook-page);

  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;

  /*
   固定ナビに本文最下部が隠れないよう、
   ナビより大きめの余白を確保
  */
  padding-bottom:
    calc(
      100px
      + env(safe-area-inset-bottom)
    ) !important;
}


.textbook-page a {
  color: inherit;

  text-decoration: none;
}


.textbook-page img {
  display: block;

  max-width: 100%;
}


/* =========================================================
   GLOBAL HEADER
========================================================= */

.textbook-page .textbook-global-header {
  position: sticky !important;

  top: 0 !important;

  z-index: 10000 !important;

  width: 100% !important;
  height: var(--textbook-header-h) !important;

  margin: 0 !important;

  padding: 0 16px !important;

  display: flex !important;

  align-items: center !important;
  justify-content: space-between !important;

  background: rgba(118, 176, 188, 0.92) !important;
  background-color: rgba(118, 176, 188, 0.92) !important;

  color: var(--textbook-teal) !important;

  border: 0 !important;

  box-shadow:
    0 1px 8px
    rgba(4, 67, 73, 0.18) !important;
}


/* ブランド */
.textbook-page .textbook-brand {
  display: flex !important;

  align-items: center !important;

  min-width: 0;

  gap: 9px;

  color: #ffffff !important;

  text-decoration: none !important;
}


/* コウノトリアイコン */
.textbook-page .textbook-brand__icon {
  display: block !important;

  width: 43px !important;
  height: 43px !important;

  max-width: none !important;

  flex: 0 0 43px;

  object-fit: contain;

  border: 0;

  border-radius: 50%;
}


/* 妊娠力の教科書 */
.textbook-page .textbook-brand__name {
  color: #ffffff !important;

  font-family: var(--textbook-serif);

  font-weight: 700;

  font-size: 18px;

  line-height: 1.3;

  letter-spacing: 0.04em;

  white-space: nowrap;
}


/* ハンバーガーメニュー */
.textbook-page .textbook-menu-button {
  width: 44px !important;
  height: 44px !important;

  margin: 0 !important;

  padding: 11px 9px !important;

  display: flex !important;

  flex-direction: column !important;
  justify-content: center !important;
  align-items: flex-end !important;

  gap: 5px !important;

  border: 0 !important;

  background: transparent !important;

  box-shadow: none !important;

  appearance: none;

  cursor: pointer;
}


.textbook-page .textbook-menu-button span {
  display: block !important;

  width: 22px !important;
  height: 1.5px !important;

  margin: 0 !important;

  padding: 0 !important;

  background: #ffffff !important;

  border: 0 !important;

  border-radius: 10px;
}


/* =========================================================
   BREADCRUMB
========================================================= */

.textbook-page .textbook-breadcrumb {
  position: sticky !important;

  top: var(--textbook-header-h) !important;

  z-index: 9990 !important;

  width: 100%;

  min-height: var(--textbook-breadcrumb-h);

  margin: 0;

  padding: 8px 16px;

  display: flex;

  align-items: center;

  gap: 7px;

  overflow: hidden;

  white-space: nowrap;

  background:
    rgba(255, 255, 255, 0.96) !important;

  border-top: 0 !important;

  border-right: 0 !important;

  border-left: 0 !important;

  border-bottom:
    1px solid
    rgba(8, 127, 137, 0.13) !important;

  color: #637275;

  font-size: 12px;

  line-height: 1.3;

  backdrop-filter: blur(8px);

  -webkit-backdrop-filter: blur(8px);
}


.textbook-page .textbook-breadcrumb a {
  color: var(--textbook-teal) !important;

  font-weight: 600;

  text-decoration: none !important;
}


.textbook-page .textbook-breadcrumb strong {
  color: var(--textbook-ink);

  font-weight: 700;
}


.textbook-page .textbook-breadcrumb__sep {
  opacity: 0.45;
}


/* =========================================================
   MAIN
========================================================= */

.textbook-page .textbook-main {
  width: 100%;

  max-width: 860px;

  margin: 0 auto;

  padding: 0;

  background: var(--textbook-paper);
}


/* =========================================================
   CHAPTER HERO
========================================================= */

.textbook-page .textbook-lesson-hero {
  position: relative;

  width: 100%;

  min-height: min(128vw, 550px);

  margin: 0;

  padding: 0;

  display: grid;

  place-items: center;

  overflow: hidden;

  background-position: center center !important;

  background-size: cover !important;

  background-repeat: no-repeat !important;
}


.textbook-page .textbook-lesson-hero::after {
  content: "";

  position: absolute;

  left: 0;
  right: 0;
  bottom: 0;

  height: 90px;

  background:
    linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0),
      #ffffff
    );

  pointer-events: none;
}


.textbook-page .textbook-lesson-hero__inner {
  position: relative;

  z-index: 1;

  width: min(86%, 620px);

  margin-top: -8px;

  text-align: center;
}


/* CHAPTER 01 */
.textbook-page .textbook-chapter-label {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  margin: 0 0 13px;

  padding: 6px 14px;

  color: #ffffff !important;

  background:
    var(--textbook-teal) !important;

  border-radius: 999px;

  font-family: var(--textbook-sans);

  font-size: 11px;

  font-weight: 700;

  line-height: 1.4;

  letter-spacing: 0.16em;
}


/* 章タイトル */
.textbook-page .textbook-chapter-title {
  margin: 0 0 14px;

  color: var(--textbook-teal);

  font-family:
    "Noto Serif JP",
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif !important;

  font-size: 18px;

  font-weight: 700 !important;

  line-height: 1.6;

  letter-spacing: 0.06em;
}


/* 本編番号 */
.textbook-page .textbook-lesson-number {
  width: auto;

  display: inline-block;

  margin: 0 auto 12px;

  padding: 0 6px 7px;

  color: var(--textbook-gold);

  font-family:
    "Noto Serif JP",
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif !important;

  font-size: 16px;

  font-weight: 700 !important;

  line-height: 1.4;

  letter-spacing: 0.05em;

  border-bottom:
    1px solid var(--textbook-gold);
}


/* 本編タイトル */
.textbook-page .textbook-lesson-hero h1 {
  margin: 0;

  padding: 0;

  color: #303638;

  font-family: var(--textbook-serif);

  font-size:
    clamp(
      31px,
      8.7vw,
      48px
    );

  font-weight: 700;

  line-height: 1.45;

  letter-spacing: 0.035em;
}


.textbook-page .textbook-lesson-hero h1 {
  margin: 0;
  padding: 0;

  color: #303638;

  font-family:
    "Noto Serif JP",
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif !important;

  font-size: clamp(31px, 8.7vw, 48px);

  font-weight: 700 !important;

  line-height: 1.45;

  letter-spacing: 0.035em;
}

/* =========================================================
   LESSON
========================================================= */

.textbook-page .textbook-lesson {
  width: min(100%, 720px);

  margin: 0 auto;

  padding:
    9px
    22px
    52px;
}


.textbook-page .textbook-section {
  margin: 56px 0;
}


.textbook-page .textbook-section h2,
.textbook-page .textbook-summary-card h2 {
  margin: 7px 0 22px;

  padding: 0;

  color: #2f3739;

  font-family: var(--textbook-serif);

  font-size: 25px;

  font-weight: 700;

  line-height: 1.55;

  letter-spacing: 0.025em;
}


.textbook-page .textbook-section p {
  margin:
    0
    0
    1.35em;

  padding: 0;

  color: var(--textbook-ink);

  font-family: var(--textbook-sans);

  font-size: inherit;

  line-height: 1.9;
}


/* =========================================================
   LABELS
========================================================= */

.textbook-page .textbook-eyebrow {
  margin: 0 !important;

  padding: 0;

  color: var(--textbook-teal);

  font-size: 11px;

  font-weight: 700;

  line-height: 1.4;

  letter-spacing: 0.18em;
}


.textbook-page .textbook-section-index {
  margin:
    0
    0
    3px !important;

  padding: 0;

  color: var(--textbook-gold);

  font-family: var(--textbook-serif);

  font-size: 14px;

  font-weight: 700;

  line-height: 1.4;

  letter-spacing: 0.14em;
}


/* =========================================================
   INTRODUCTION
========================================================= */

.textbook-page .textbook-intro-section {
  margin-top: 28px;
}


.textbook-page .textbook-intro-card {
  position: relative;

  padding: 22px 20px;

  overflow: hidden;

  background:
    linear-gradient(
      135deg,
      var(--textbook-teal-pale),
      #ffffff
    );

  border:
    1px solid
    rgba(8, 127, 137, 0.12);

  border-radius: 12px;
}


.textbook-page .textbook-intro-card::before {
  content: "";

  position: absolute;

  width: 90px;
  height: 90px;

  top: -48px;
  right: -32px;

  border-radius: 50%;

  background:
    rgba(8, 127, 137, 0.08);
}


.textbook-page .textbook-intro-card p {
  position: relative;

  margin: 0;

  padding: 0;
}


/* =========================================================
   POINT
========================================================= */

.textbook-page .textbook-point-card {
  position: relative;

  margin: 58px 0;

  padding:
    25px
    20px
    23px;

  overflow: hidden;

  background:
    linear-gradient(
      145deg,
      #edf7f7,
      #ffffff
    );

  border:
    1px solid
    rgba(8, 127, 137, 0.25);

  border-left:
    4px solid
    var(--textbook-teal);

  border-radius: 10px;
}


.textbook-page .textbook-point-card::after {
  content: "";

  position: absolute;

  width: 90px;
  height: 90px;

  right: -42px;
  bottom: -49px;

  border-radius: 50%;

  background:
    rgba(239, 170, 169, 0.15);
}


.textbook-page .textbook-point-card__heading {
  position: relative;

  z-index: 1;

  margin-bottom: 9px;
}


.textbook-page .textbook-point-card__mark {
  color: var(--textbook-teal);

  font-family: var(--textbook-serif);

  font-size: 16px;

  font-weight: 700;

  line-height: 1.4;

  letter-spacing: 0.08em;
}


.textbook-page .textbook-point-card__lead {
  position: relative;

  z-index: 1;

  margin:
    0
    0
    8px;

  color: #314547;

  font-weight: 700;
}


.textbook-page .textbook-point-card p:last-child {
  position: relative;

  z-index: 1;

  margin: 0;

  font-size: 15px;

  line-height: 1.8;
}


/* =========================================================
   FIGURE
========================================================= */

.textbook-page .textbook-figure-card {
  margin-top: 23px;

  padding:
    24px
    12px;

  display: grid;

  grid-template-columns:
    1fr
    auto
    1fr
    auto
    1fr;

  gap: 7px;

  align-items: center;

  border:
    1px solid
    var(--textbook-line);

  border-radius: 12px;

  background: #ffffff;

  box-shadow:
    0 8px 28px
    rgba(17, 78, 83, 0.06);
}


.textbook-page .textbook-flow-item {
  min-width: 0;

  text-align: center;
}


.textbook-page .textbook-flow-item__icon {
  width: 52px;
  height: 52px;

  margin:
    0
    auto
    8px;

  display: grid;

  place-items: center;

  border-radius: 50%;

  background:
    var(--textbook-teal-soft);

  color:
    var(--textbook-teal);

  font-size: 22px;

  font-weight: 500;

  line-height: 1;
}


.textbook-page
.textbook-flow-item:nth-of-type(3)
.textbook-flow-item__icon {
  background:
    var(--textbook-pink-soft);

  color: #d88989;
}


.textbook-page
.textbook-flow-item:nth-of-type(5)
.textbook-flow-item__icon {
  background: #f8f3e8;

  color:
    var(--textbook-gold);
}


.textbook-page .textbook-flow-item strong {
  display: block;

  color: #304143;

  font-size: 13px;

  line-height: 1.5;
}


.textbook-page .textbook-flow-item small {
  display: block;

  margin-top: 3px;

  color:
    var(--textbook-muted);

  font-size: 9px;

  line-height: 1.4;
}


.textbook-page .textbook-flow-arrow {
  color: #a9bbbd;

  font-size: 17px;

  line-height: 1;
}


.textbook-page .textbook-figure-note {
  margin-top:
    12px !important;

  color: #7c888a !important;

  font-size: 11px !important;

  line-height: 1.6 !important;
}


/* =========================================================
   SUMMARY
========================================================= */

.textbook-page .textbook-summary-card {
  position: relative;

  margin:
    62px
    0
    38px;

  padding:
    27px
    21px
    24px;

  overflow: hidden;

  border:
    1px solid
    rgba(8, 127, 137, 0.13);

  border-radius: 12px;

  background:
    radial-gradient(
      circle at 100% 0,
      rgba(239, 170, 169, 0.16),
      transparent 90px
    ),
    linear-gradient(
      145deg,
      #edf7f7,
      #f9fcfc
    );
}


.textbook-page .textbook-summary-card__label {
  margin: 0;

  padding: 0;

  color:
    var(--textbook-teal);

  font-size: 11px;

  font-weight: 700;

  line-height: 1.4;

  letter-spacing: 0.18em;
}


.textbook-page .textbook-summary-card h2 {
  margin-bottom: 16px;

  font-size: 23px;
}


.textbook-page .textbook-summary-card ul {
  list-style: none;

  margin: 0;

  padding: 0;
}


.textbook-page .textbook-summary-card li {
  position: relative;

  margin: 0;

  padding:
    9px
    0
    9px
    29px;

  border-top:
    1px solid
    rgba(8, 127, 137, 0.10);

  font-size: 15px;

  line-height: 1.75;
}


.textbook-page
.textbook-summary-card
li:first-child {
  border-top: 0;
}


.textbook-page
.textbook-summary-card
li::before {
  content: "✓";

  position: absolute;

  left: 3px;
  top: 9px;

  color:
    var(--textbook-teal);

  font-weight: 700;
}


/* =========================================================
   FLOATING BOTTOM NAVIGATION
   前へ ｜ 目次 ｜ 次へ
========================================================= */

.textbook-page .textbook-floating-nav {
  position: fixed !important;

  left: 50% !important;
  right: auto !important;

  bottom: 0 !important;

  top: auto !important;

  z-index: 2147483647 !important;

  width: 100% !important;
  max-width: 860px !important;

  height:
    calc(
      var(--textbook-bottom-nav-h)
      + env(safe-area-inset-bottom)
    ) !important;

  min-height:
    var(--textbook-bottom-nav-h) !important;

  margin: 0 !important;

  padding:
    0
    0
    env(safe-area-inset-bottom)
    0 !important;

  transform:
    translateX(-50%) !important;

  display: grid !important;

  grid-template-columns:
    1fr
    1fr
    1fr !important;

  align-items: stretch !important;

  visibility: visible !important;

  opacity: 1 !important;

  overflow: visible !important;

  background: #087f89 !important;

  background-color:
    #087f89 !important;

  background-image:
    none !important;

  border: 0 !important;

  box-shadow:
    0 -4px 18px
    rgba(24, 69, 73, 0.18) !important;
}


/* 各ボタン */
.textbook-page
.textbook-floating-nav__item {
  position: relative;

  display: flex !important;

  align-items: center !important;
  justify-content: center !important;

  gap: 8px !important;

  width: auto !important;
  min-width: 0 !important;

  height:
    var(--textbook-bottom-nav-h) !important;

  min-height:
    var(--textbook-bottom-nav-h) !important;

  margin: 0 !important;

  padding: 0 10px !important;

  color: #ffffff !important;

  background:
    transparent !important;

  border: 0 !important;

  border-right:
    1px solid
    rgba(255, 255, 255, 0.20) !important;

  border-radius: 0 !important;

  box-shadow: none !important;

  font-family:
    var(--textbook-sans) !important;

  font-size: 13px !important;

  font-weight: 600 !important;

  line-height: 1 !important;

  letter-spacing: 0.03em !important;

  text-decoration: none !important;

  visibility: visible !important;

  opacity: 1 !important;
}


/* 中央：目次 */
.textbook-page
.textbook-floating-nav__item--toc {
  background:
    rgba(
      255,
      255,
      255,
      0.08
    ) !important;
}


/* 右端だけ区切り線なし */
.textbook-page
.textbook-floating-nav__item:last-child {
  border-right:
    0 !important;
}


/* 前後矢印 */
.textbook-page
.textbook-floating-nav__arrow {
  display: inline-block !important;

  color: #ffffff !important;

  font-family:
    Arial,
    sans-serif !important;

  font-size: 24px !important;

  font-weight: 300 !important;

  line-height: 1 !important;
}


/* 目次アイコン */
.textbook-page
.textbook-floating-nav__toc-icon {
  display: inline-block !important;

  color: #ffffff !important;

  font-size: 15px !important;

  line-height: 1 !important;
}


/* =========================================================
   TABLET / PC
========================================================= */

@media (min-width: 700px) {

  .textbook-page {
    font-size: 18px;
  }


  .textbook-page .textbook-main {
    box-shadow:
      0 0 40px
      rgba(18, 68, 72, 0.08);
  }


  .textbook-page
  .textbook-lesson-hero {
    min-height: 580px;
  }


  .textbook-page
  .textbook-lesson {
    padding-left: 50px;

    padding-right: 50px;
  }


  /*
   PCでも教科書エリアと同じ860px幅
  */
  .textbook-page
  .textbook-global-header,
  .textbook-page
  .textbook-breadcrumb {
    max-width: 860px;

    margin-left: auto !important;
    margin-right: auto !important;
  }


  .textbook-page
  .textbook-brand__name {
    font-size: 19px;
  }

}


/* =========================================================
   SMALL MOBILE
========================================================= */

@media (max-width: 370px) {

  .textbook-page
  .textbook-brand__name {
    font-size: 16px;
  }


  .textbook-page
  .textbook-brand__icon {
    width: 39px !important;
    height: 39px !important;

    flex-basis: 39px;
  }


  .textbook-page
  .textbook-lesson {
    padding-left: 18px;

    padding-right: 18px;
  }


  .textbook-page
  .textbook-lesson-hero h1 {
    font-size: 29px;
  }


  .textbook-page
  .textbook-figure-card {
    gap: 3px;

    padding-left: 8px;

    padding-right: 8px;
  }


  .textbook-page
  .textbook-flow-item__icon {
    width: 46px;

    height: 46px;
  }


  .textbook-page
  .textbook-floating-nav__item {
    padding:
      0
      6px !important;

    font-size:
      12px !important;
  }

}

/* =========================================================
   下部固定ナビ 最終調整（半透明版）
========================================================= */

:root {
  --textbook-bottom-nav-h: 72px;
}

.textbook-floating-nav {
  position: fixed !important;
  left: 50% !important;
  bottom: 0 !important;
  transform: translateX(-50%) !important;

  width: 100% !important;
  max-width: 860px !important;

  height: calc(72px + env(safe-area-inset-bottom)) !important;
  min-height: 72px !important;

  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;

  margin: 0 !important;
  padding: 0 0 env(safe-area-inset-bottom) !important;

  background: rgba(118, 176, 188, 0.63) !important;
  border-top: 1px solid rgba(255, 255, 255, 0.14) !important;

  backdrop-filter: blur(10px) !important;
  -webkit-backdrop-filter: blur(10px) !important;

  z-index: 2147483647 !important;

  box-shadow: 0 -4px 20px rgba(24, 69, 73, 0.12) !important;
}

.textbook-floating-nav__item {
  height: 72px !important;
  min-height: 72px !important;

  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;

  padding: 0 12px !important;

  color: #ffffff !important;
  background: transparent !important;

  border: 0 !important;
  border-right: 1px solid rgba(255, 255, 255, 0.16) !important;

  font-family: "Noto Sans JP", sans-serif !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  line-height: 1 !important;
  text-decoration: none !important;
}

.textbook-floating-nav__item--toc {
  background: rgba(255, 255, 255, 0.06) !important;
}

.textbook-floating-nav__item:last-child {
  border-right: 0 !important;
}

.textbook-floating-nav__arrow {
  color: #ffffff !important;
  font-size: 24px !important;
  font-weight: 300 !important;
  line-height: 1 !important;
}

.textbook-floating-nav__toc-icon {
  color: #ffffff !important;
  font-size: 17px !important;
  line-height: 1 !important;
}

.textbook-page {
  padding-bottom: calc(104px + env(safe-area-inset-bottom)) !important;
}

/* =========================================================
   Shopify固定ページ本文
========================================================= */

.textbook-content {
  margin-top: 56px;
}


/* 通常本文 */
.textbook-content p {
  margin: 0 0 1.45em !important;

  color: var(--textbook-ink) !important;

  font-family:
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    sans-serif !important;

  font-size: inherit !important;

  font-weight: 400 !important;

  line-height: 1.95 !important;

  letter-spacing: 0.015em;
}


/* 大見出し */
.textbook-content h2 {
  margin:
    58px
    0
    22px !important;

  padding: 0 !important;

  color: #2f3739 !important;

  font-family:
    "Noto Serif JP",
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif !important;

  font-size: 25px !important;

  font-weight: 700 !important;

  line-height: 1.55 !important;

  letter-spacing: 0.025em;
}


/* 小見出し */
.textbook-content h3 {
  position: relative;

  margin:
    44px
    0
    18px !important;

  padding-left: 14px !important;

  color: #344548 !important;

  font-family:
    "Noto Serif JP",
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif !important;

  font-size: 20px !important;

  font-weight: 700 !important;

  line-height: 1.55 !important;

  border-left:
    3px solid
    var(--textbook-teal);
}


/* 強調 */
.textbook-content strong {
  font-weight: 700 !important;

  color: #283b3d;
}


/* =========================================================
   引用 ＝ POINT
========================================================= */

.textbook-content blockquote {
  position: relative;

  margin:
    52px
    0 !important;

  padding:
    48px
    20px
    22px !important;

  overflow: hidden;

  background:
    linear-gradient(
      145deg,
      #edf7f7,
      #ffffff
    ) !important;

  border:
    1px solid
    rgba(8,127,137,.25) !important;

  border-left:
    4px solid
    var(--textbook-teal) !important;

  border-radius:
    10px !important;
}


.textbook-content blockquote::before {
  content: "POINT";

  position: absolute;

  top: 17px;
  left: 20px;

  color:
    var(--textbook-teal);

  font-family:
    "Noto Serif JP",
    serif;

  font-size: 15px;

  font-weight: 700;

  letter-spacing: .08em;
}


.textbook-content blockquote::after {
  content: "";

  position: absolute;

  width: 90px;
  height: 90px;

  right: -42px;
  bottom: -49px;

  border-radius: 50%;

  background:
    rgba(239,170,169,.15);
}


.textbook-content blockquote p {
  position: relative;

  z-index: 1;

  margin-bottom:
    .8em !important;
}


.textbook-content blockquote p:last-child {
  margin-bottom:
    0 !important;
}


/* =========================================================
   画像
========================================================= */

.textbook-content img {
  display: block;

  width: auto;
  max-width: 100% !important;

  height: auto !important;

  margin:
    34px
    auto !important;

  border-radius: 8px;
}


/* =========================================================
   箇条書き
========================================================= */

.textbook-content ul,
.textbook-content ol {
  margin:
    24px
    0
    30px !important;

  padding-left:
    1.5em !important;
}


.textbook-content li {
  margin-bottom:
    .65em !important;

  line-height:
    1.85 !important;
}


/* =========================================================
   SUMMARY メタフィールド
========================================================= */

.textbook-summary-content {
  margin-top:
    6px;
}


.textbook-summary-content
.metafield-rich_text_field {
  margin: 0;
}


.textbook-summary-content p {
  margin:
    0
    0
    12px;

  font-size: 15px;

  line-height: 1.75;
}


.textbook-summary-content ul {
  list-style: none;

  margin: 0;

  padding: 0;
}


.textbook-summary-content li {
  position: relative;

  margin: 0;

  padding:
    9px
    0
    9px
    29px;

  border-top:
    1px solid
    rgba(8,127,137,.10);

  font-size: 15px;

  line-height: 1.75;
}


.textbook-summary-content li:first-child {
  border-top: 0;
}


.textbook-summary-content li::before {
  content: "✓";

  position: absolute;

  left: 3px;
  top: 9px;

  color:
    var(--textbook-teal);

  font-weight: 700;
}


/* 表紙・裏表紙：下部固定ナビは「目次」のみ中央表示 */
.textbook-floating-nav--cover {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
}

.textbook-floating-nav--cover .textbook-floating-nav__item--toc {
  grid-column: 2;
  width: 100%;
}

/* =========================================================
   共通コンテンツボックス
========================================================= */

.textbook-box {
  position: relative;
  margin: 0 0 44px;
  padding: 34px 26px 36px;
  border-radius: 18px;
  overflow: hidden;
}

.textbook-box--blue {
  background: linear-gradient(
    145deg,
    rgba(231, 246, 248, 0.92),
    rgba(255, 255, 255, 0.98)
  );
}

.textbook-box--pink {
  background: linear-gradient(
    145deg,
    rgba(255, 241, 244, 0.92),
    rgba(255, 255, 255, 0.98)
  );
}

.textbook-box--beige {
  background: linear-gradient(
    145deg,
    rgba(247, 243, 234, 0.94),
    rgba(255, 255, 255, 0.98)
  );
}

.textbook-box--mint {
  background: linear-gradient(
    145deg,
    rgba(231, 245, 244, 0.94),
    rgba(255, 251, 251, 0.98)
  );
}


/* =========================================================
   共通ボックス見出し
========================================================= */

.textbook-content .textbook-box__heading {
  position: relative;

  margin: 0 0 30px !important;
  padding: 0 0 20px !important;

  font-family:
    "Noto Serif JP",
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif !important;

  font-size: clamp(28px, 6.5vw, 36px) !important;

  font-weight: 700 !important;

  line-height: 1.55 !important;

  letter-spacing: 0.05em !important;

  color: #385e66 !important;

  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95),
    0 4px 14px rgba(65, 104, 110, 0.08);
}


/* 見出し上の小さなゴールド装飾 */
.textbook-content .textbook-box__heading::before {
  content: "✦";

  display: block;

  margin: 0 0 10px;

  color: var(--textbook-gold);

  font-family: Georgia, serif;

  font-size: 15px;

  font-weight: 400;

  line-height: 1;

  letter-spacing: 0;
}


/* 見出し下のゴールドライン */
.textbook-content .textbook-box__heading::after {
  content: "";

  display: block;

  width: 64px;
  height: 1px;

  margin-top: 18px;

  background: linear-gradient(
    90deg,
    rgba(201, 163, 91, 0.95),
    rgba(201, 163, 91, 0.18)
  );
}


/* =========================================================
   色別見出し
========================================================= */

.textbook-content
.textbook-box--pink
.textbook-box__heading {
  color: #a85f70 !important;
}

.textbook-content
.textbook-box--beige
.textbook-box__heading {
  color: #806638 !important;
}

.textbook-content
.textbook-box--mint
.textbook-box__heading {
  color: #417f7c !important;
}


/* =========================================================
   ボックス内本文
========================================================= */

.textbook-box p {
  margin: 0 0 1.4em !important;
}

.textbook-box p:last-child {
  margin-bottom: 0 !important;
}


/* =========================================================
   番号表示
   必要な場所だけHTMLで使用
========================================================= */

.textbook-section-number {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  width: 52px;
  height: 52px;

  margin: 0 0 18px;

  border:
    1px solid
    rgba(118, 176, 188, 0.45);

  border-radius: 50%;

  background:
    rgba(255, 255, 255, 0.55);

  color: #76b0bc;

  font-family:
    "Noto Serif JP",
    serif;

  font-size: 21px;

  font-weight: 600;

  line-height: 1;
}


/* 番号の色分け */

.textbook-box--pink
.textbook-section-number {
  color: #c78391;

  border-color:
    rgba(199, 131, 145, 0.40);
}

.textbook-box--beige
.textbook-section-number {
  color: #b4945e;

  border-color:
    rgba(180, 148, 94, 0.40);
}

.textbook-box--mint
.textbook-section-number {
  color: #68aaa5;

  border-color:
    rgba(104, 170, 165, 0.40);
}


/* =========================================================
   MOBILE
========================================================= */

@media screen and (max-width: 600px) {

  .textbook-box {
    margin-bottom: 40px;

    padding:
      30px
      21px
      32px;

    border-radius: 17px;
  }


  .textbook-content
  .textbook-box__heading {
    margin-bottom: 25px !important;

    padding-bottom: 16px !important;

    font-size: 27px !important;

    line-height: 1.55 !important;

    letter-spacing: 0.045em !important;
  }


  .textbook-content
  .textbook-box__heading::before {
    margin-bottom: 9px;

    font-size: 14px;
  }


  .textbook-content
  .textbook-box__heading::after {
    width: 56px;

    margin-top: 15px;
  }


  .textbook-section-number {
    width: 48px;
    height: 48px;

    margin-bottom: 15px;

    font-size: 20px;
  }

}

/* =========================================================
   VIDEO
========================================================= */

.textbook-video-section {
  margin: 42px 0 56px;
  padding: 25px 20px 24px;

  border: 1px solid rgba(239, 170, 169, 0.42);
  border-radius: 16px;

  background:
    linear-gradient(
      145deg,
      rgba(255, 246, 246, 0.94),
      rgba(255, 255, 255, 0.98)
    );
}


.textbook-video-section__label {
  margin: 0 0 10px !important;

  color: #c96f7c;

  font-family: var(--textbook-sans);

  font-size: 13px;

  font-weight: 700;

  line-height: 1.4;

  letter-spacing: 0.14em;
}


.textbook-video-section__title {
  margin: 0 0 20px;

  padding: 0;

  color: #303638;

  font-family: var(--textbook-serif);

  font-size: 23px;

  font-weight: 700;

  line-height: 1.6;

  letter-spacing: 0.025em;
}


.textbook-video-thumbnail {
  position: relative;

  display: block;

  width: 100%;

  margin: 0;

  overflow: hidden;

  border-radius: 12px;

  background: #f5f5f5;
}


.textbook-video-thumbnail img {
  display: block;

  width: 100%;

  height: auto;

  margin: 0 !important;

  border-radius: 0 !important;
}


.textbook-video-thumbnail__play {
  position: absolute;

  top: 50%;
  left: 50%;

  width: 66px;
  height: 46px;

  display: flex;

  align-items: center;
  justify-content: center;

  transform: translate(-50%, -50%);

  padding-left: 3px;

  border-radius: 12px;

  background: rgba(28, 28, 28, 0.88);

  color: #ffffff;

  font-size: 21px;

  line-height: 1;

  box-shadow:
    0 6px 20px
    rgba(0, 0, 0, 0.16);
}


.textbook-video-button {
  display: flex;

  align-items: center;
  justify-content: center;

  gap: 10px;

  width: 100%;

  min-height: 54px;

  margin-top: 15px;

  padding: 12px 20px;

  border-radius: 10px;

  background:
    linear-gradient(
      135deg,
      #db7e89,
      #cf6474
    );

  color: #ffffff !important;

  font-family: var(--textbook-sans);

  font-size: 15px;

  font-weight: 600;

  line-height: 1.4;

  letter-spacing: 0.04em;

  text-decoration: none !important;
}


.textbook-video-section__note {
  margin:
    11px
    0
    0 !important;

  color: #7b8587 !important;

  font-size: 12px !important;

  line-height: 1.6 !important;

  text-align: center;
}


@media screen and (max-width: 600px) {

  .textbook-video-section {
    margin:
      38px
      0
      50px;

    padding:
      23px
      17px
      21px;
  }


  .textbook-video-section__title {
    font-size: 21px;

    line-height: 1.6;
  }

}


.textbook-floating-nav__item--disabled {
  opacity: .35;
  pointer-events: none;
  cursor: default;
}

/* =========================================================
   HERO 区分表示の統一
========================================================= */

.textbook-chapter-label {
  display: block !important;
  width: 100% !important;
  margin: 0 0 12px !important;
}

.textbook-lesson-number {
  display: block !important;
  width: 100% !important;
  margin: 0 0 24px !important;

  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  padding: 0 !important;

  color: #385e66 !important;

  font-family: "Noto Serif JP", serif;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}

.textbook-lesson-hero .textbook-lesson-number {
  color: #385e66 !important;
  -webkit-text-fill-color: #385e66 !important;
}

.textbook-hero-location {
  display: block;
  width: 100%;
  margin: 0 0 24px;
  padding: 0;

  color: #385e66;

  font-family: "Noto Serif JP", serif;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;

  opacity: 1;
  visibility: visible;
  -webkit-text-fill-color: #385e66;
}