/* ==========================================================================
   書籍LP『保険会社という職場のリアル』
   配色は表紙の実測値：青 #2F5DAB／金茶 #958056
   ========================================================================== */

:root {
  --bl-blue: #2f5dab;
  --bl-blue-deep: #1f3f7a;
  --bl-blue-pale: #f2f5fa;
  --bl-gold: #958056;
  --bl-gold-pale: #f6f3ec;
  --bl-ink: #22262e;
  --bl-ink-soft: #565c68;
  --bl-line: #d9dde4;
  --bl-white: #fff;
  --bl-mincho: "Shippori Mincho", "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --bl-serif: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --bl-en: "Figtree", sans-serif;
  --bl-gutter: 20px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body.book-lp {
  margin: 0;
  background: var(--bl-white);
  color: var(--bl-ink);
  font-family: var(--bl-serif);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  overflow-wrap: anywhere;
  line-break: strict; /* 行頭に「ー」「ュ」などが来ないようにする */
  -webkit-font-smoothing: antialiased;
}

/* 途中で切れると読みにくい語句を守る。文全体を句ごとに区切ると、スマホで行が短く途切れて見えるので使いすぎない */
.bl-ph {
  display: inline-block;
}

.bl-ph--gap {
  margin-left: 1em;
}

.book-lp img {
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
}

.book-lp a {
  color: inherit;
}

.book-lp ul,
.book-lp ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.book-lp :focus-visible {
  outline: 2px solid var(--bl-blue);
  outline-offset: 3px;
}

.bl-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.bl-skip {
  position: absolute;
  left: 8px;
  top: -60px;
  z-index: 100;
  padding: 8px 16px;
  background: var(--bl-blue);
  color: var(--bl-white) !important;
  text-decoration: none;
}

.bl-skip:focus {
  top: 8px;
}

.bl-inner {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 var(--bl-gutter);
}

.bl-inner--narrow {
  max-width: 800px;
}

.bl-br-sp {
  display: none;
}

/* ---------- ボタン ---------- */
.bl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 56px;
  padding: 12px 32px;
  border: 1px solid var(--bl-blue);
  font-family: var(--bl-mincho);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: background-color 0.25s, color 0.25s, border-color 0.25s;
}

.bl-btn--primary {
  background: var(--bl-blue);
  color: var(--bl-white) !important;
}

.bl-btn--primary:hover {
  background: var(--bl-blue-deep);
  border-color: var(--bl-blue-deep);
}

.bl-btn--ghost {
  background: var(--bl-white);
  color: var(--bl-blue) !important;
}

.bl-btn--ghost:hover {
  background: var(--bl-blue-pale);
}

.bl-btn--small {
  min-height: 44px;
  padding: 8px 20px;
  font-size: 14px;
}

.bl-btn__ext {
  font-family: var(--bl-en);
  font-size: 0.9em;
}

.bl-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 4px;
  color: var(--bl-blue) !important;
  text-underline-offset: 6px;
}

.bl-link::after {
  content: "›";
  margin-left: 8px;
  font-family: var(--bl-en);
}

.bl-link:hover {
  text-decoration: none;
}

/* ---------- ヘッダー ---------- */
.bl-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--bl-line);
}

.bl-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.bl-header__logo {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.bl-header__logo img {
  width: auto;
  height: 40px;
}

/* ---------- ファーストビュー ---------- */
.bl-fv {
  position: relative;
  padding: 72px 0 88px;
  background: linear-gradient(to bottom, var(--bl-white) 0, var(--bl-white) 62%, var(--bl-blue-pale) 62%, var(--bl-blue-pale) 100%);
  overflow: hidden;
}

.bl-fv__inner {
  display: grid;
  grid-template-columns: minmax(0, 380px) minmax(0, 1fr);
  align-items: center;
  gap: 72px;
}

.bl-fv__cover {
  display: block;
  width: 100%;
  box-shadow: 0 18px 40px rgba(31, 63, 122, 0.18), 0 2px 6px rgba(0, 0, 0, 0.08);
}

.bl-fv__typo {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 22px;
  aspect-ratio: 800 / 1175;
  padding: 0 28px;
  border: 1px solid var(--bl-line);
  background: var(--bl-white);
  box-shadow: 0 18px 40px rgba(31, 63, 122, 0.14);
  font-family: var(--bl-mincho);
}

/* 左から 著者名｜金茶の縦帯｜書名（表紙の構成にならう） */
.bl-fv__typo-title,
.bl-fv__typo-author {
  padding: 40px 0;
  writing-mode: vertical-rl;
}

.bl-fv__typo-title {
  color: var(--bl-blue);
  font-size: clamp(30px, 3.8vw, 46px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.1em;
}

.bl-fv__typo-title small {
  font-size: 0.5em;
}

.bl-fv__typo-bar {
  flex: none;
  width: 14px;
  margin-bottom: 22%;
  background: var(--bl-gold);
}

.bl-fv__typo-author {
  font-size: 20px;
  letter-spacing: 0.2em;
}

.bl-fv__status {
  display: inline-block;
  margin-bottom: 28px;
  padding: 6px 16px;
  border: 1px solid var(--bl-gold);
  color: var(--bl-gold);
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.08em;
}

.bl-fv__catch {
  margin-bottom: 32px;
  color: var(--bl-blue);
  font-family: var(--bl-mincho);
  font-size: clamp(26px, 3.1vw, 38px);
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.08em;
}

/* しっぽり明朝の「！」は斜めの字形なので、ここだけ本文のフォントにしてまっすぐにする */
.bl-fv__catch-mark {
  font-family: var(--bl-serif);
}

.bl-fv__title {
  margin-bottom: 24px;
  padding-left: 20px;
  border-left: 4px solid var(--bl-gold);
  font-family: var(--bl-mincho);
}

.bl-fv__title-main {
  display: block;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.08em;
}

.bl-fv__title-author {
  display: block;
  margin-top: 6px;
  color: var(--bl-ink-soft);
  font-size: 15px;
}

.bl-fv__title-pub {
  margin-left: 1em;
  font-size: 13px;
}

.bl-fv__lead {
  margin-bottom: 36px;
  color: var(--bl-ink-soft);
  font-size: 15px;
}

.bl-fv__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ---------- セクション共通 ---------- */
.bl-section {
  padding: 96px 0;
}

.bl-heading {
  margin-bottom: 48px;
  text-align: center;
}

.bl-heading__en {
  margin-bottom: 8px;
  color: var(--bl-gold);
  font-family: var(--bl-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.bl-heading__ja {
  position: relative;
  padding-bottom: 20px;
  color: var(--bl-blue);
  font-family: var(--bl-mincho);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.12em;
}

.bl-heading__ja::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 40px;
  height: 2px;
  background: var(--bl-gold);
  transform: translateX(-50%);
}

/* 見出しの副題（「本書出版の背景」の「なぜ今、この本が必要なのか」） */
.bl-heading__sub {
  display: block;
  margin-top: 6px;
  color: var(--bl-ink-soft);
  font-size: 0.6em;
  font-weight: 500;
  letter-spacing: 0.1em;
}

/* ---------- 概要／出版の背景（文章） ---------- */
.bl-prose p + p {
  margin-top: 1.4em;
}

.bl-background {
  background: var(--bl-gold-pale);
}

/* ---------- 出版社の広告用画像（概要の直後） ---------- */
.bl-aplus {
  max-width: 1080px;
  margin: 56px auto 0;
}

.bl-aplus__img {
  display: block;
  width: 100%;
  box-shadow: 0 10px 30px rgba(31, 63, 122, 0.12);
}

.bl-aplus__link {
  display: block;
  cursor: zoom-in;
}

.bl-aplus__caption {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-top: 10px;
  color: var(--bl-ink-soft);
  font-size: 13px;
}

.bl-aplus__source {
  margin-left: auto;
}

/* 「タップで拡大」の案内はスマホだけ */
.bl-aplus__hint {
  display: none;
}

/* ---------- 目次（開閉式） ---------- */
.bl-contents {
  background: var(--bl-gold-pale);
}

.bl-toc__tools {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
}

.bl-toc__toggle {
  min-height: 44px;
  padding: 6px 18px;
  border: 1px solid var(--bl-blue);
  background: var(--bl-white);
  color: var(--bl-blue);
  font-family: var(--bl-mincho);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.bl-toc__toggle:hover {
  background: var(--bl-blue-pale);
}

.bl-toc__list--root {
  border-top: 1px solid var(--bl-line);
  background: var(--bl-white);
}

.bl-toc__item--d1 {
  border-bottom: 1px solid var(--bl-line);
}

.bl-toc__label {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 20px;
  line-height: 1.6;
}

summary.bl-toc__label {
  list-style: none;
  cursor: pointer;
}

summary.bl-toc__label::-webkit-details-marker {
  display: none;
}

summary.bl-toc__label:hover .bl-toc__title {
  color: var(--bl-blue);
}

.bl-toc__no {
  flex: none;
  min-width: 2.2em;
  color: var(--bl-gold);
  font-family: var(--bl-mincho);
  font-weight: 600;
}

/* 項目名は句の区切り（<wbr>）でだけ折り返し、1〜2文字だけ次の行に落ちないよう行を均等に割る（本文段落には使わない） */
.bl-toc__title {
  flex: 1 1 auto;
  word-break: keep-all;
  text-wrap: balance;
}

/* 開閉の印（＋／－） */
.bl-toc__icon {
  position: relative;
  flex: none;
  align-self: center;
  width: 14px;
  height: 14px;
}

.bl-toc__icon::before,
.bl-toc__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  margin-top: -1px;
  background: var(--bl-blue);
  transition: transform 0.2s;
}

.bl-toc__icon::after {
  transform: rotate(90deg);
}

.bl-toc__details[open] > summary .bl-toc__icon::after {
  transform: rotate(0deg);
}

/* 章 */
.bl-toc__item--d1 > .bl-toc__label,
.bl-toc__item--d1 > .bl-toc__details > .bl-toc__label {
  padding-top: 18px;
  padding-bottom: 18px;
  font-family: var(--bl-mincho);
  font-size: 18px;
  font-weight: 600;
}

.bl-toc__item--d1 > .bl-toc__details > .bl-toc__list {
  padding: 0 0 16px 2.2em;
}

/* 節・項 */
.bl-toc__item--d2 > .bl-toc__label,
.bl-toc__item--d2 > .bl-toc__details > .bl-toc__label {
  padding-top: 8px;
  padding-bottom: 8px;
  font-size: 16px;
}

.bl-toc__item--d2 > .bl-toc__details > .bl-toc__list {
  padding-left: 2.2em;
}

.bl-toc__item--d3 > .bl-toc__label,
.bl-toc__item--d3 > .bl-toc__details > .bl-toc__label {
  padding-top: 6px;
  padding-bottom: 6px;
  color: var(--bl-ink-soft);
  font-size: 15px;
}

/* 部門名 */
.bl-toc__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 4px 20px 12px calc(20px + 2.2em + 12px) !important;
}

.bl-toc__tags li {
  padding: 2px 12px;
  border: 1px solid var(--bl-line);
  background: var(--bl-blue-pale);
  font-size: 13px;
  line-height: 1.8;
}

/* ---------- 見どころ ---------- */
.bl-points {
  background: var(--bl-blue-pale);
}

.bl-points__list {
  display: grid;
  gap: 20px;
  max-width: 880px;
  margin: 0 auto !important;
}

.bl-points__item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  column-gap: 28px;
  padding: 32px 36px;
  background: var(--bl-white);
}

.bl-points__num {
  grid-row: 1 / span 2;
  align-self: center;
  border-right: 1px solid var(--bl-gold);
  color: var(--bl-gold);
  font-family: var(--bl-en);
  font-size: 36px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.bl-points__title {
  margin-bottom: 8px;
  color: var(--bl-blue);
  font-family: var(--bl-mincho);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.6;
}

.bl-points__text {
  font-size: 15px;
}

/* ---------- 著者 ---------- */
.bl-author__card {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
  padding: 44px 48px;
  border: 1px solid var(--bl-line);
  border-left: 6px solid var(--bl-gold);
}

.bl-author__photo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.bl-author__name {
  margin-bottom: 8px;
  font-family: var(--bl-mincho);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.12em;
}

.bl-author__kana {
  margin-left: 1em;
  color: var(--bl-ink-soft);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.bl-author__role {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--bl-line);
  color: var(--bl-blue);
  font-size: 15px;
}

.bl-author__text {
  font-size: 15px;
}

/* ---------- 書籍情報 ---------- */
.bl-info {
  background: var(--bl-gold-pale);
}

.bl-info__table {
  margin-bottom: 40px !important;
  border-top: 1px solid var(--bl-line);
  background: var(--bl-white);
}

.bl-info__row {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr); /* 「Amazon予約ページ」「メールアドレス」が1行に収まる幅 */
  border-bottom: 1px solid var(--bl-line);
}

.bl-info__row dt {
  padding: 18px 24px;
  background: var(--bl-blue-pale);
  color: var(--bl-blue);
  font-family: var(--bl-mincho);
  font-weight: 600;
}

.bl-info__row dd {
  margin: 0;
  padding: 18px 24px;
}

.bl-info__action {
  text-align: center;
}

.bl-info__note {
  margin-top: 16px;
  color: var(--bl-ink-soft);
  font-size: 14px;
}

.bl-info__link {
  color: var(--bl-blue) !important;
  text-underline-offset: 5px;
}

.bl-info__link:hover {
  text-decoration: none;
}

/* ---------- 会社概要・お問い合わせ先 ---------- */
.bl-company {
  border-top: 1px solid var(--bl-line);
}

.bl-company__table {
  margin-bottom: 0 !important;
}

/* ---------- フッター ---------- */
.bl-footer {
  padding: 48px 0;
  background: var(--bl-blue-deep);
  color: var(--bl-white);
  text-align: center;
}

.bl-footer__name {
  margin-bottom: 16px;
  font-family: var(--bl-mincho);
  font-size: 18px;
  letter-spacing: 0.12em;
}

.bl-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 28px;
  margin-bottom: 24px !important;
  font-size: 14px;
}

.bl-footer__links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-underline-offset: 5px;
}

.bl-footer__copy {
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  line-height: 1.8;
}

/* ---------- タブレット以下 ---------- */
@media (max-width: 900px) {
  .bl-fv__inner {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 40px;
  }

}

/* ---------- スマートフォン ---------- */
@media (max-width: 767px) {
  :root {
    --bl-gutter: 20px;
  }

  body.book-lp {
    font-size: 15px;
  }

  .bl-br-sp {
    display: inline;
  }

  .bl-header__inner {
    min-height: 56px;
  }

  .bl-header__logo img {
    height: 32px;
  }

  .bl-fv {
    padding: 40px 0 56px;
    background: linear-gradient(to bottom, var(--bl-white) 0, var(--bl-white) 38%, var(--bl-blue-pale) 38%, var(--bl-blue-pale) 100%);
  }

  .bl-fv__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }

  .bl-fv__visual {
    width: 62%;
    max-width: 260px;
    margin: 0 auto;
  }

  .bl-fv__status {
    display: block;
    width: fit-content;
    margin: 0 auto 20px;
    padding: 8px 18px;
    text-align: center;
    font-size: clamp(14px, 4.3vw, 17px); /* 2行に分けるので大きめに（375px幅で約16px） */
    line-height: 1.7;
    letter-spacing: 0.06em;
  }

  /* 1行に収まらないので「｜」の位置で2行に分ける */
  .bl-fv__status-part {
    display: block;
  }

  .bl-fv__status-sep {
    display: none;
  }

  .bl-fv__catch {
    margin-bottom: 24px;
    font-size: clamp(21px, 6.6vw, 26px); /* 「アクチュアリーが執筆！」が1行に収まる大きさ */
  }

  .bl-fv__actions .bl-btn {
    width: 100%;
  }

  .bl-section {
    padding: 64px 0;
  }

  .bl-heading {
    margin-bottom: 36px;
  }

  .bl-points__item {
    grid-template-columns: minmax(0, 1fr);
    padding: 24px 18px;
  }

  .bl-points__num {
    grid-row: auto;
    margin-bottom: 8px;
    border-right: 0;
    font-size: 28px;
  }

  .bl-points__title {
    font-size: clamp(15px, 4.3vw, 18px); /* 見出しが2行に収まるよう、幅に合わせて少し小さくする */
    letter-spacing: 0.02em;
  }

  .bl-aplus {
    margin-top: 40px;
  }

  .bl-aplus__caption {
    justify-content: space-between;
    font-size: 12px;
  }

  .bl-aplus__hint {
    display: inline;
  }

  /* 1文字だけ次の行に落ちないよう、字間・番号幅・字下げを詰める */
  .bl-toc__label {
    gap: 6px;
    padding-left: 12px;
    padding-right: 12px;
  }

  /* 既存テーマの「* { letter-spacing }」が子の span にも効くので、子まで指定する */
  .bl-toc__label,
  .bl-toc__label > span {
    letter-spacing: 0.04em;
  }

  .bl-toc__no {
    min-width: 1.8em;
  }

  .bl-toc__item--d1 > .bl-toc__label,
  .bl-toc__item--d1 > .bl-toc__details > .bl-toc__label {
    font-size: 16px;
  }

  .bl-toc__item--d1 > .bl-toc__details > .bl-toc__list {
    padding-left: 0.8em;
  }

  .bl-toc__item--d2 > .bl-toc__label,
  .bl-toc__item--d2 > .bl-toc__details > .bl-toc__label {
    font-size: 15px;
  }

  .bl-toc__item--d2 > .bl-toc__details > .bl-toc__list {
    padding-left: 0.8em;
  }

  .bl-toc__item--d3 > .bl-toc__label,
  .bl-toc__item--d3 > .bl-toc__details > .bl-toc__label {
    font-size: 14px;
  }

  .bl-toc__tags {
    padding-left: 14px !important;
    padding-right: 14px !important;
  }

  .bl-author__card {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 28px 22px;
  }

  .bl-author__photo {
    width: 160px;
    margin: 0 auto;
  }

  .bl-author__name {
    font-size: 22px;
  }

  .bl-author__kana {
    display: block;
    margin: 2px 0 0;
  }

  .bl-info__row {
    grid-template-columns: minmax(0, 1fr);
  }

  .bl-info__row dt {
    padding: 10px 16px;
    font-size: 14px;
  }

  .bl-info__row dd {
    padding: 12px 16px;
  }

  .bl-info__action .bl-btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .bl-btn,
  .bl-toc__icon::before,
  .bl-toc__icon::after {
    transition: none;
  }
}