@charset "utf-8";

/* ============================================================
   新刊出版記念セミナー LP
   ============================================================ */

:root {
  --white: #ffffff;
  --navy: #243b55;
  --navy-deep: #1b2c40;
  --navy-soft: #3d6188;
  --pale-blue: #edf4f8;
  --pale-blue-deep: #dbe8f1;
  --ivory: #f8f6f2;
  --ivory-deep: #efe9df;
  --text: #344054;
  --text-weak: #667085;
  --line: #e3e8ee;
  --shadow-sm: 0 2px 10px rgba(36, 59, 85, 0.05);
  --shadow-md: 0 10px 30px rgba(36, 59, 85, 0.08);
  --shadow-lg: 0 18px 48px rgba(36, 59, 85, 0.12);
  --radius: 16px;
  --radius-lg: 24px;
  --container: 1120px;
  --font-base: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic Medium",
    "Yu Gothic", "Noto Sans JP", "Meiryo", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  background: var(--white);
  font-feature-settings: "palt" 1;
  letter-spacing: 0.02em;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy-soft); }

h1, h2, h3 {
  color: var(--navy);
  line-height: 1.5;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin: 0;
}

p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}
.container.narrow { width: min(100% - 40px, 880px); }

.br-sp { display: none; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--navy);
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.06em;
  border: none;
  border-radius: 999px;
  padding: 16px 36px;
  font-size: 16px;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(36, 59, 85, 0.22);
  transition: background-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.btn::after {
  content: "";
  width: 7px; height: 7px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(135deg);
  margin-top: -4px;
  transition: transform 0.25s ease;
}
.btn:hover {
  background: var(--navy-deep);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(36, 59, 85, 0.28);
}
.btn:hover::after { transform: rotate(135deg) translate(2px, -2px); }
.btn:focus-visible {
  outline: 3px solid var(--navy-soft);
  outline-offset: 3px;
}
.btn-sm { padding: 11px 24px; font-size: 14px; box-shadow: none; }
.btn-lg { padding: 20px 56px; font-size: 18px; }
.btn-block { width: 100%; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding-block: 10px;
}
.brand { line-height: 1.5; }
.brand-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.04em;
}
.brand-sub {
  display: block;
  font-size: 11px;
  color: var(--text-weak);
  letter-spacing: 0.08em;
}

/* ---------- ファーストビュー ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(ellipse 90% 60% at 85% 0%, var(--pale-blue) 0%, rgba(237, 244, 248, 0) 70%),
    linear-gradient(180deg, var(--ivory) 0%, var(--white) 100%);
  padding-block: 72px 96px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset-inline: -10%;
  bottom: -120px;
  height: 240px;
  background: var(--white);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: 56px;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  background: var(--navy);
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.7;
  padding: 8px 20px;
  border-radius: 999px;
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(28px, 3.1vw, 42px);
  line-height: 1.45;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
}
.hero-lead {
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 2;
  color: var(--text);
  margin-bottom: 32px;
}
.hero-info {
  background: var(--white);
  border: 1px solid var(--pale-blue-deep);
  border-radius: var(--radius);
  padding: 22px 26px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 32px;
}
.hero-info-row {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding-block: 7px;
}
.hero-info-row + .hero-info-row { border-top: 1px dashed var(--line); }
.hero-info dt {
  flex: 0 0 92px;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy-soft);
  letter-spacing: 0.06em;
}
.hero-info dd { font-size: 16px; line-height: 1.7; }
.hero-info dd strong { font-size: 19px; color: var(--navy); font-weight: 600; }
.note-inline { font-size: 13px; color: var(--text-weak); margin-left: 4px; }
/* 本文のすぐ下に添える小さな補足（例：お食事をしながらのご参加も歓迎です） */
.note-block {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-weak);
  margin-top: 6px;
  font-weight: 400;
}
.hero-note {
  font-size: 13px;
  color: var(--text-weak);
  margin-top: 14px;
  letter-spacing: 0.04em;
}

.hero-visual { position: relative; padding-bottom: 40px; }
.hero-photo {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--white);
}
.hero-photo img { width: 100%; }
.hero-book {
  position: absolute;
  right: -8px;
  bottom: 0;
  width: 37%;
  max-width: 190px;
  margin: 0;
  background: var(--white);
  border-radius: 12px;
  padding: 10px 10px 12px;
  box-shadow: var(--shadow-md);
}
.hero-book img { width: 100%; border-radius: 6px; }
.hero-book figcaption {
  font-size: 10.5px;
  line-height: 1.55;
  color: var(--text-weak);
  text-align: center;
  margin-top: 8px;
  letter-spacing: 0.01em;
}
.hero-book figcaption span { display: block; }

/* ---------- セクション共通 ---------- */
.section { padding-block: clamp(64px, 7vw, 104px); }
.section-pale { background: var(--pale-blue); }
.section-ivory { background: var(--ivory); }

.section-title {
  font-size: clamp(22px, 2.5vw, 32px);
  text-align: center;
  line-height: 1.55;
  margin-bottom: 20px;
}
.section-title::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: var(--navy-soft);
  margin: 22px auto 0;
  opacity: 0.5;
}
.section-lead {
  text-align: center;
  color: var(--text-weak);
  font-size: 15px;
  margin-bottom: 44px;
}
.section-title + .section-lead { margin-top: 24px; }
.section-title:last-child { margin-bottom: 0; }

/* ---------- ① チェックリスト ---------- */
.checklist {
  display: grid;
  gap: 16px;
  margin-top: 44px;
}
.checklist li {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  padding: 22px 28px 22px 68px;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  box-shadow: var(--shadow-sm);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 26px;
  top: 50%;
  width: 22px;
  height: 22px;
  margin-top: -11px;
  border: 2px solid var(--navy-soft);
  border-radius: 6px;
  background: var(--white);
}
.checklist li::after {
  content: "";
  position: absolute;
  left: 32px;
  top: 50%;
  width: 11px;
  height: 6px;
  margin-top: -5px;
  border-left: 2.5px solid var(--navy);
  border-bottom: 2.5px solid var(--navy);
  transform: rotate(-45deg);
}

/* ---------- ② 良かれ と ホンネ ---------- */
.gap-grid { display: grid; gap: 24px; }
.gap-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 30px 30px;
  box-shadow: var(--shadow-sm);
}
.gap-tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--navy-soft);
  background: var(--pale-blue);
  border-radius: 999px;
  padding: 5px 16px;
  margin-bottom: 20px;
}
.gap-body {
  display: grid;
  grid-template-columns: 1fr 48px 1fr;
  align-items: stretch;
  gap: 0;
}
.gap-side {
  border-radius: var(--radius);
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.gap-boss { background: var(--pale-blue); }
.gap-member { background: var(--ivory-deep); }
.gap-label {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.gap-boss .gap-label { color: var(--navy-soft); }
.gap-member .gap-label { color: #8a7a5e; }
.gap-quote {
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.75;
  font-weight: 600;
  color: var(--navy);
}
.gap-member .gap-quote { color: #4a4336; }
/* 文節のかたまりで改行させる。
   日本語は1文字ごとに改行できてしまうため、放っておくと
   「…聞いてほし／い」のように末尾の1〜2文字だけが次の行に落ちる。
   文節を inline-block で包むと、改行は文節の境目（読点のあと）で起きる。
   幅が足りないときは文節の中でも折り返すので、はみ出すことはない。 */
.gap-phrase { display: inline-block; }
.gap-arrow {
  position: relative;
  align-self: center;
  justify-self: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.gap-arrow::before,
.gap-arrow::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 7px;
  height: 7px;
  border-top: 2px solid var(--navy-soft);
  border-right: 2px solid var(--navy-soft);
  margin-top: -4px;
}
.gap-arrow::before { left: 9px; transform: rotate(-135deg); }
.gap-arrow::after { right: 9px; transform: rotate(45deg); }

.gap-message {
  margin-top: 44px;
  background: var(--white);
  border-left: 4px solid var(--navy-soft);
  border-radius: 6px var(--radius) var(--radius) 6px;
  padding: 30px 34px;
  font-size: clamp(15px, 1.35vw, 16.5px);
  line-height: 2.05;
  box-shadow: var(--shadow-sm);
}

/* ---------- ③ お伝えすること ---------- */
.about-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 46px);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 20px;
  margin-top: 44px;
  font-size: clamp(15px, 1.35vw, 16.5px);
  line-height: 2.05;
}

/* ---------- ④ プログラム ---------- */
.program-list { display: grid; gap: 20px; margin-top: 44px; }
.program-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 34px;
  box-shadow: var(--shadow-sm);
}
.program-num span {
  display: block;
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--navy);
  letter-spacing: 0.02em;
  font-family: "Helvetica Neue", Arial, sans-serif;
}
.program-num::after {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  background: var(--navy-soft);
  opacity: 0.45;
  margin-top: 12px;
}
.program-body h3 {
  font-size: clamp(17px, 1.7vw, 20px);
  line-height: 1.6;
  margin-bottom: 16px;
}
.program-body ul { display: grid; gap: 8px; }
.program-body li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}
.program-body li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pale-blue-deep);
  border: 1.5px solid var(--navy-soft);
}

/* ---------- ⑤ 得られること ---------- */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 44px;
}
.benefit-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}
.benefit-num {
  font-size: 26px;
  color: var(--navy-soft);
  line-height: 1;
  margin-bottom: 16px;
}
.benefit-card h3 {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 14px;
}
.benefit-card p { font-size: 14.5px; line-height: 1.9; text-align: left; }

.cta-block {
  text-align: center;
  margin-top: 56px;
}
.cta-text {
  font-size: 15px;
  color: var(--text);
  margin-bottom: 22px;
}

/* ---------- ⑥ おすすめ ---------- */
.target-list {
  display: grid;
  gap: 14px;
  margin-top: 44px;
}
.target-list li {
  position: relative;
  background: var(--pale-blue);
  border-radius: var(--radius);
  padding: 20px 28px 20px 60px;
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.8;
}
.target-list li::before {
  content: "";
  position: absolute;
  left: 26px;
  top: 50%;
  width: 16px;
  height: 9px;
  margin-top: -7px;
  border-left: 2.5px solid var(--navy);
  border-bottom: 2.5px solid var(--navy);
  transform: rotate(-45deg);
}

/* ---------- ⑦ 講師紹介 ---------- */
.speaker {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 3.5vw, 44px);
  box-shadow: var(--shadow-sm);
  margin-top: 44px;
}
.speaker-photo {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
}
.speaker-photo img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  object-position: 26% center;
}
.speaker-role {
  font-size: 13.5px;
  color: var(--navy-soft);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.speaker-name {
  font-size: 28px;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}
.speaker-name-en {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-weak);
  letter-spacing: 0.14em;
  margin-top: 6px;
}
.speaker-text { font-size: 15px; line-height: 2; margin-bottom: 24px; }
/* 講師プロフィールは複数段落。段落間は行間より少し広くとる。 */
.speaker-text p + p { margin-top: 14px; }
.speaker-books {
  background: var(--ivory);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
}
.speaker-book-cover {
  flex: 0 0 auto;
  width: 84px;
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
}
.speaker-books-title {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--navy-soft);
  margin-bottom: 10px;
}
.speaker-books ul { display: grid; gap: 8px; }
.speaker-books li {
  font-size: 14px;
  line-height: 1.75;
  padding-left: 16px;
  position: relative;
}
.speaker-books li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--navy-soft);
  opacity: 0.6;
}

/* ---------- ⑧ 開催概要 ---------- */
.outline-list {
  margin-top: 44px;
  border-top: 1px solid var(--line);
}
.outline-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
  padding: 20px 8px;
  border-bottom: 1px solid var(--line);
}
.outline-row dt {
  font-weight: 600;
  color: var(--navy);
  font-size: 15px;
  letter-spacing: 0.06em;
}
.outline-row dd { font-size: 15px; line-height: 1.8; }

/* ---------- ⑨ フォーム ---------- */
.section-form {
  background: linear-gradient(180deg, var(--pale-blue) 0%, #f6fafc 100%);
  scroll-margin-top: 72px;
}
.form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: clamp(26px, 4vw, 48px);
  box-shadow: var(--shadow-md);
  display: grid;
  gap: 24px;
}
.field { display: grid; gap: 8px; }
.field > label {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.req, .opt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 4px;
  line-height: 1.4;
}
.req { background: #fdeceb; color: #b4342b; }
.opt { background: var(--line); color: var(--text-weak); }

.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field textarea {
  width: 100%;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: #fcfdfe;
  border: 1px solid var(--pale-blue-deep);
  border-radius: 10px;
  padding: 14px 16px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input::placeholder,
.field textarea::placeholder { color: #b6bfcb; }
.field input:focus,
.field textarea:focus {
  outline: none;
  background: var(--white);
  border-color: var(--navy-soft);
  box-shadow: 0 0 0 3px rgba(61, 97, 136, 0.14);
}
.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #d14b40;
  background: #fffafa;
}
.help { font-size: 12.5px; color: var(--text-weak); line-height: 1.7; }
.error {
  font-size: 13px;
  color: #c0392b;
  line-height: 1.6;
  display: none;
}
.error.is-visible { display: block; }

.consent {
  background: var(--ivory);
  border-radius: var(--radius);
  padding: 24px 26px;
  display: grid;
  gap: 14px;
}
.consent-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.04em;
}
.consent-text { font-size: 13px; line-height: 1.9; color: var(--text); }
.consent-text strong { color: var(--navy); }
.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.checkbox-field input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--navy);
  flex: 0 0 auto;
}
.checkbox-field label {
  font-size: 14px;
  line-height: 1.7;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  cursor: pointer;
}

.submit-area { display: grid; gap: 14px; justify-items: center; }
.submit-area .btn { max-width: 440px; }
.submit-area .btn::after { display: none; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; transform: none; }
.form-status {
  font-size: 13.5px;
  line-height: 1.8;
  text-align: center;
  color: var(--text-weak);
  min-height: 1px;
}
.form-status.is-error { color: #c0392b; }

.form-done {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: clamp(32px, 5vw, 56px);
  box-shadow: var(--shadow-md);
  text-align: center;
}
.form-done h3 { font-size: 22px; margin-bottom: 16px; }
.form-done p { font-size: 15px; line-height: 2; }
.form-done-note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13.5px !important;
  color: var(--text-weak);
}

/* ボット対策の項目。利用者には見せない（読み上げもしない） */
.hp-field {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---------- フッター ---------- */
.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.82);
  padding-block: 40px;
}
.footer-inner { display: grid; gap: 16px; justify-items: center; text-align: center; }
.footer-brand { font-size: 15px; font-weight: 600; color: var(--white); letter-spacing: 0.06em; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 28px; justify-content: center; }
.footer-nav a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 13.5px;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 2px;
}
.footer-nav a:hover { color: var(--white); border-color: var(--white); }
.footer-copy { font-size: 12px; color: rgba(255, 255, 255, 0.6); letter-spacing: 0.08em; }

/* ---------- スマホ固定CTA ---------- */
.sticky-cta {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  transform: translateY(110%);
  transition: transform 0.3s ease;
}
.sticky-cta.is-visible { transform: none; }

/* ---------- スクロール表示 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-shown { opacity: 1; transform: none; }

/* ============================================================
   タブレット
   ============================================================ */
@media (max-width: 1000px) {
  .hero-inner { gap: 36px; }
  .benefit-grid { grid-template-columns: 1fr; }
  .benefit-card { text-align: left; }
  .benefit-card h3 br { display: none; }
  .speaker { grid-template-columns: 1fr; gap: 28px; }
  .speaker-photo { max-width: 420px; margin-inline: auto; }
}

/* ============================================================
   スマートフォン
   ============================================================ */
@media (max-width: 820px) {
  html { scroll-padding-top: 60px; }
  body { font-size: 15.5px; }

  .br-pc { display: none; }
  .br-sp { display: inline; }

  .container,
  .container.narrow { width: calc(100% - 32px); }

  .header-inner { min-height: 52px; }
  .brand-name { font-size: 13px; }
  .brand-sub { font-size: 10.5px; }
  /* 画面下部に固定CTAがあるため、ヘッダーのボタンは重複を避けて非表示にする */
  .site-header .btn { display: none; }

  .hero { padding-block: 36px 56px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-badge {
    font-size: 11.5px;
    padding: 8px 16px;
    margin-bottom: 18px;
    line-height: 1.65;
    letter-spacing: 0.02em;
  }
  .hero h1 { font-size: 26px; line-height: 1.5; }
  .hero-lead { font-size: 14.5px; line-height: 1.9; letter-spacing: 0; }
  .hero-info { padding: 18px 20px; }
  .hero-info-row { flex-direction: column; gap: 2px; }
  .hero-info dt { flex: none; font-size: 12px; }
  .hero-info dd strong { font-size: 18px; }
  .hero-copy .btn-lg { width: 100%; padding: 18px 24px; font-size: 16.5px; }
  .hero-note { text-align: center; }

  .hero-visual { padding-bottom: 24px; }
  .hero-book {
    right: 0;
    width: 33%;
    max-width: 130px;
    padding: 8px 8px 10px;
  }
  .hero-book figcaption { font-size: 10px; margin-top: 6px; }

  .section { padding-block: 56px; }
  .section-title { font-size: 20.5px; }
  .section-title::after { margin-top: 18px; }
  .section-lead { font-size: 14px; margin-bottom: 32px; }

  .checklist { gap: 12px; margin-top: 32px; }
  .checklist li { padding: 18px 20px 18px 54px; font-size: 15px; }
  .checklist li::before { left: 18px; }
  .checklist li::after { left: 24px; }

  .gap-card { padding: 22px 20px 24px; border-radius: var(--radius); }
  .gap-tag { font-size: 11.5px; padding: 5px 14px; margin-bottom: 16px; }
  .gap-body { grid-template-columns: 1fr; gap: 0; }
  .gap-side { padding: 18px 20px; }
  .gap-quote { font-size: 16px; }
  .gap-arrow {
    width: 30px; height: 30px;
    margin-block: -6px;
    z-index: 1;
  }
  .gap-arrow::before, .gap-arrow::after {
    top: auto; left: 50%; right: auto;
    margin: 0 0 0 -4px;
  }
  .gap-arrow::before { top: 7px; transform: rotate(-45deg); }
  .gap-arrow::after { bottom: 7px; transform: rotate(135deg); }
  .gap-message { margin-top: 32px; padding: 24px 22px; line-height: 1.95; }

  .about-card { margin-top: 32px; }

  .program-list { margin-top: 32px; }
  .program-item {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 24px 22px;
    border-radius: var(--radius);
  }
  .program-num { display: flex; align-items: center; gap: 12px; }
  .program-num span { font-size: 28px; }
  .program-num::after { margin: 0; width: 24px; }
  .program-body h3 { font-size: 17.5px; margin-bottom: 14px; }
  .program-body li { font-size: 14.5px; }

  .benefit-grid { margin-top: 32px; gap: 16px; }
  .benefit-card { padding: 26px 22px; border-radius: var(--radius); }
  .benefit-card h3 { font-size: 17px; }
  .cta-block { margin-top: 40px; }
  .cta-block .btn-lg { width: 100%; padding: 18px 20px; font-size: 16.5px; }

  .target-list { margin-top: 32px; }
  .target-list li { padding: 16px 20px 16px 48px; font-size: 15px; }
  .target-list li::before { left: 20px; }

  .speaker { margin-top: 32px; border-radius: var(--radius); }
  .speaker-name { font-size: 24px; }
  .speaker-books {
    padding: 18px 20px;
    flex-direction: column;
    align-items: center;
    gap: 14px;
  }
  .speaker-book-cover { width: 96px; }
  .speaker-books > div { width: 100%; }
  .speaker-books li { font-size: 13.5px; }

  .outline-list { margin-top: 32px; }
  .outline-row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 4px;
  }
  .outline-row dt { font-size: 13px; color: var(--navy-soft); }

  .form-card { border-radius: var(--radius); gap: 20px; }
  .consent { padding: 20px 18px; }
  .submit-area .btn { width: 100%; max-width: none; padding: 19px 20px; font-size: 16.5px; }

  .sticky-cta { display: block; }
  .site-footer { padding-block: 32px 96px; }
}

@media (max-width: 400px) {
  .hero-visual { grid-template-columns: 1fr 108px; }
  .hero h1 { font-size: 23.5px; }
  .brand-sub { display: none; }
}

/* ============================================================
   アクセシビリティ・印刷
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

@media print {
  .site-header, .sticky-cta { display: none; }
}