:root {
  --navy-950: #071a2f;
  --navy-900: #0b2340;
  --navy-800: #12365a;
  --gold-500: #c99a3d;
  --gold-400: #d9b15b;
  --gold-200: #ead7a2;
  --gold-light: #e4c87d;
  --gold-deep: #8a6a1f;
  --silver: #a7adb4;
  --ivory-100: #f5efe2;
  --ivory-50: #fbf8f1;
  --white: #ffffff;
  --text-main: #0e2033;
  --text-sub: #3d4f66;
  --line-light: rgba(16, 32, 51, 0.14);
  --font-heading: "Noto Serif JP", "Shippori Mincho", "Zen Old Mincho", serif;
  --font-body: "Noto Sans JP", "BIZ UDPGothic", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  width: 100%;
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-body);
  color: var(--text-main);
  background: var(--white);
  line-height: 1.9;
  -webkit-text-size-adjust: 100%;
}

main {
  width: 100%;
}

a {
  text-decoration: none;
  color: inherit;
}

h1,
h2,
h3,
.hero-title,
.section-title,
.emphasis-line,
.price-label,
.price-amount {
  font-family: var(--font-heading);
}

/* ===== レイアウト ===== */

.full-width-section {
  width: 100%;
}

.content-container {
  width: min(1120px, calc(100% - 96px));
  margin-inline: auto;
}

.reading-container {
  width: min(760px, calc(100% - 96px));
  margin-inline: auto;
}

.section {
  padding-block: clamp(72px, 9vw, 112px);
}

.bg-navy {
  background: linear-gradient(160deg, #071a2f 0%, #0b2340 60%, #12365a 100%);
  color: var(--white);
}

.bg-navy-deep {
  background: #061626;
  color: var(--white);
}

.bg-white {
  background: var(--white);
  color: var(--text-main);
}

.bg-ivory {
  background: var(--ivory-100);
  color: var(--text-main);
}

/* ===== ヘッダー ===== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 16px;
}

.brand {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  color: var(--navy-900);
}

.header-cta {
  white-space: nowrap;
  font-weight: 700;
  font-size: 1rem;
  color: var(--navy-900);
  border-bottom: 1px solid var(--gold-500);
  padding-bottom: 2px;
}

/* ===== 共通テキスト要素 ===== */

.label {
  margin: 0 0 20px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.8;
  color: var(--gold-200);
  letter-spacing: 0.02em;
}

.label-dark {
  color: var(--gold-deep);
}

.eyebrow-dark,
.eyebrow-gold {
  margin: 0 0 20px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.eyebrow-dark {
  color: var(--gold-deep);
}

.eyebrow-gold {
  color: var(--gold-200);
}

.section-title {
  margin: 0 0 32px;
  font-size: clamp(36px, 3.6vw, 48px);
  line-height: 1.4;
  font-weight: 800;
  color: var(--navy-950);
}

.section-title-light {
  color: var(--white);
}

.section-title-small {
  font-size: clamp(30px, 2.8vw, 38px);
}

.emphasis-line {
  margin: 0 0 32px;
  font-size: clamp(26px, 2.6vw, 34px);
  line-height: 1.6;
  font-weight: 700;
  color: var(--navy-950);
}

.emphasis-line-strong {
  margin-top: 56px;
}

.emphasis-line-tight {
  font-size: clamp(22px, 2.1vw, 29px);
}

@media (min-width: 720px) {
  .emphasis-line-tight {
    white-space: nowrap;
  }
}

.emphasis-line-gold {
  color: var(--gold-deep);
}

.why-section .emphasis-line-gold,
.final-cta-section .emphasis-line-gold {
  color: var(--gold-200);
}

.emphasis-line-center {
  text-align: center;
}

.body-text {
  margin: 0 0 16px;
  font-size: clamp(17px, 1.05vw, 19px);
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: 0.01em;
  color: var(--text-sub);
}

.body-text-light {
  color: rgba(255, 255, 255, 0.92);
}

.body-text-emphasis {
  font-weight: 700;
  color: var(--text-main);
}

.body-text-light.body-text-emphasis {
  color: var(--white);
}

.plain-list {
  margin: 8px 0 16px;
  padding-left: 1.4em;
}

.plain-list li {
  font-size: clamp(17px, 1.05vw, 19px);
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: 0.01em;
  color: var(--text-sub);
}

.sp-only {
  display: none;
}

/* ===== ボタン（全CTA共通） ===== */

.cta-stack {
  display: grid;
  gap: 14px;
  margin-top: 8px;
}

.cta-stack-center {
  justify-items: center;
  margin-top: 40px;
}

.btn {
  height: 64px;
  width: min(440px, 100%);
  min-width: 0;
  border-radius: 8px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.01em;
  padding: 0 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, var(--gold-400), var(--gold-500));
  color: var(--navy-950);
  box-shadow: 0 6px 16px rgba(7, 26, 47, 0.18);
  transition: filter 0.18s ease, transform 0.18s ease;
}

.btn:hover,
.btn:focus-visible {
  filter: brightness(1.06);
  transform: translateY(-2px);
}

.cta-note {
  margin: 0;
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 480px;
  font-size: clamp(17px, 1vw, 18px);
  font-weight: 600;
  line-height: 1.75;
  letter-spacing: 0.01em;
  text-align: left;
  color: rgba(255, 255, 255, 0.95);
}

@media (min-width: 820px) {
  .cta-note {
    white-space: nowrap;
  }
}

.cta-note__icon {
  flex-shrink: 0;
  width: 17px;
  height: 17px;
  margin-top: 2px;
  color: var(--gold-200);
}

/* ===== 1. ファーストビュー ===== */

.hero-section {
  min-height: clamp(680px, 78vh, 860px);
  display: flex;
  align-items: center;
  padding-block: clamp(96px, 11vw, 132px) clamp(64px, 7vw, 96px);
}

.hero-inner {
  width: min(880px, calc(100% - 96px));
  margin-inline: auto;
  text-align: center;
  display: grid;
  justify-items: center;
  gap: 20px;
}

.hero-title {
  margin: 0;
  font-size: clamp(38px, 4.4vw, 58px);
  line-height: 1.45;
  font-weight: 900;
  color: var(--white);
}

.hero-conclusion {
  margin: 0;
  max-width: 800px;
  font-size: clamp(19px, 1.3vw, 22px);
  font-weight: 500;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.96);
}

@media (min-width: 820px) {
  .hero-conclusion {
    white-space: nowrap;
  }
}

.hero-support {
  margin: 0;
  max-width: 680px;
  font-size: clamp(16px, 1.05vw, 18px);
  font-weight: 500;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.9);
}

.hero-price-row {
  margin-top: 8px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-price-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-200);
}

.hero-price-value {
  font-size: clamp(20px, 1.6vw, 24px);
  font-weight: 800;
  color: var(--white);
}

/* ===== 2. 共感セクション ===== */

.empathy-inner {
  width: min(720px, calc(100% - 96px));
  margin-inline: auto;
}

.empathy-title {
  margin-bottom: 28px;
  font-size: clamp(36px, 3.6vw, 42px);
}

@media (min-width: 820px) {
  .empathy-title {
    white-space: nowrap;
  }
}

.empathy-list {
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.empathy-list li {
  position: relative;
  padding-left: 28px;
  font-size: clamp(19px, 1.4vw, 22px);
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: 0.01em;
  color: var(--text-main);
}

.empathy-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-500);
}

.empathy-bridge {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 2.2vw, 30px);
  font-weight: 800;
  color: var(--gold-deep);
}

/* ===== 3. なぜ始めたのか ===== */

.story-highlight {
  margin: 28px 0;
  padding-left: 24px;
  border-left: 3px solid var(--gold-500);
  font-family: var(--font-heading);
  font-size: clamp(22px, 1.6vw, 25px);
  line-height: 1.7;
  color: var(--navy-950);
}

@media (min-width: 820px) {
  .story-highlight {
    white-space: nowrap;
  }
}

/* ===== 4. ペルソナクリエイトをAIへ ===== */

.text-flow-line {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line-light);
  font-size: clamp(16px, 1.05vw, 18px);
  font-weight: 700;
  line-height: 1.8;
  color: var(--navy-900);
}

/* ===== 5. AIが見つけるセクション ===== */

.matching-heading {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px;
}

.matching-heading .section-title {
  margin-bottom: 0;
}

.matching-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
  margin: 0 0 56px;
}

.step-number {
  margin: 0 0 12px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold-400);
  font-family: var(--font-heading);
}

.step-heading {
  margin: 0 0 12px;
  font-size: clamp(21px, 1.8vw, 24px);
  font-weight: 700;
  color: var(--white);
}

.notice-list-wrap {
  width: min(680px, 100%);
  margin-inline: auto;
  padding: clamp(24px, 3vw, 32px) clamp(24px, 3.5vw, 36px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
}

.notice-list-label {
  margin: 0 0 16px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--gold-200);
}

.notice-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.notice-list li {
  position: relative;
  padding-left: 26px;
  font-size: clamp(17px, 1vw, 18px);
  font-weight: 600;
  line-height: 1.8;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.97);
}

.notice-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid var(--gold-200);
}

/* ===== 6. できること ===== */

.features-list {
  display: grid;
  grid-template-columns: 1fr;
  column-gap: 72px;
  row-gap: 0;
}

.feature-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 28px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-item:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* 2列は、長い項目でも折り返さない幅が確保できる場合のみ有効化 */
@media (min-width: 1160px) {
  .features-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-item:last-child {
    border-bottom: none;
  }

  .feature-item:nth-last-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
}

.feature-number {
  margin: 0;
  min-width: 2.2ch;
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(217, 177, 91, 0.75);
  font-family: var(--font-heading);
}

.feature-text {
  margin: 0;
  font-size: clamp(18px, 1.1vw, 19px);
  font-weight: 700;
  color: var(--white);
}

/* ===== 7. なぜ月額1,000円なのか＋料金 ===== */

.reason-price-inner {
  width: min(820px, calc(100% - 96px));
  margin-inline: auto;
  text-align: center;
}

.reason-title {
  margin-bottom: 0;
}

.reason-title-rule {
  width: 64px;
  height: 2px;
  margin: 24px auto 40px;
  background: var(--gold-500);
}

.reason-body {
  text-align: center;
}

.reason-emphasis {
  margin-top: 8px;
}

/* --- 料金カード --- */

.pricing-card {
  margin-top: clamp(56px, 6vw, 72px);
  border: 1px solid var(--gold-400);
  border-radius: 20px;
  background: var(--ivory-50);
  text-align: left;
}

.pricing-card__main {
  display: grid;
  grid-template-columns: minmax(200px, 0.82fr) 1px minmax(0, 1.35fr);
  align-items: center;
  gap: clamp(24px, 3vw, 40px);
  padding: clamp(32px, 4vw, 48px);
}

.pricing-card__left {
  text-align: left;
}

.pricing-card__label {
  margin: 0 0 4px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-sub);
}

.pricing-card__name {
  margin: 0 0 20px;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--navy-950);
}

.price-label {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-900);
}

.price-amount {
  margin: 4px 0 0;
  font-size: clamp(44px, 5vw, 56px);
  line-height: 1;
  font-weight: 900;
  color: var(--navy-950);
}

.pricing-card__divider {
  align-self: stretch;
  background: var(--line-light);
}

.pricing-card__features {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  row-gap: 18px;
}

.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 17px;
  font-weight: 700;
  color: var(--navy-900);
  line-height: 1.6;
}

.pricing-card__features small {
  display: block;
  margin-top: 4px;
  font-size: clamp(16px, 1vw, 17px);
  font-weight: 600;
  color: var(--text-sub);
  line-height: 1.7;
}

.pricing-card__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--gold-deep);
}

.pricing-card__icon svg {
  width: 100%;
  height: 100%;
}

.pricing-card__cta-row {
  border-top: 1px solid var(--line-light);
  padding: clamp(28px, 3vw, 36px) clamp(32px, 4vw, 48px) clamp(32px, 4vw, 40px);
}

.pricing-card__btn {
  width: 100%;
  max-width: none;
}

.pricing-card__note {
  color: var(--text-main);
}

.pricing-card__note .cta-note__icon {
  color: var(--gold-deep);
}

/* ===== 8. 安心材料 ===== */

.reassurance-title {
  text-align: center;
}

.reassurance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.reassurance-card {
  padding: 28px 26px;
  background: var(--ivory-50);
  border: 1px solid var(--line-light);
  border-radius: 14px;
}

.reassurance-card__icon {
  display: inline-flex;
  width: 30px;
  height: 30px;
  margin-bottom: 16px;
  color: var(--gold-deep);
}

.reassurance-card__icon svg {
  width: 100%;
  height: 100%;
}

.reassurance-card__title {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  color: var(--navy-950);
}

.reassurance-card__text {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--text-sub);
}

/* ===== 9. 研究員制度 ===== */

.member-card {
  width: min(720px, 100%);
  margin-inline: auto;
  padding: clamp(40px, 5vw, 56px);
  background: var(--ivory-50);
  border: 1px solid var(--line-light);
  border-radius: 16px;
  text-align: center;
}

.member-card__label {
  display: inline-block;
  margin: 0 0 20px;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--white);
  background: var(--gold-deep);
}

.member-card__title {
  margin: 0 0 24px;
  font-family: var(--font-heading);
  font-size: clamp(24px, 2.1vw, 28px);
  line-height: 1.6;
  font-weight: 800;
  color: var(--navy-950);
}

@media (min-width: 720px) {
  .member-card__title {
    white-space: nowrap;
  }
}

.member-card__text {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: 0.01em;
  color: var(--text-sub);
}

.member-card__note {
  margin: 20px 0 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-sub);
}

/* ===== 9. FAQ（ボタン式アコーディオン） ===== */

.faq-inner {
  width: min(900px, calc(100% - 96px));
  margin-inline: auto;
}

.faq-hint {
  margin: -16px 0 32px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-sub);
}

.faq-list {
  display: grid;
}

.faq-item {
  border-top: 1px solid var(--line-light);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line-light);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
  padding: 22px 4px;
  background: none;
  border: none;
  font-family: inherit;
  font-size: clamp(17px, 1.1vw, 19px);
  font-weight: 800;
  color: var(--navy-950);
  text-align: left;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.faq-question:hover {
  background-color: rgba(14, 32, 51, 0.04);
}

.faq-question:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: -2px;
}

.faq-icon {
  flex-shrink: 0;
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--gold-deep);
  transition: transform 0.25s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-answer p {
  margin: 0;
  padding: 0 4px 22px;
  font-size: clamp(17px, 1vw, 18px);
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: 0.01em;
  color: var(--text-sub);
}

/* ===== 10. 最終CTA ===== */

.final-cta-inner {
  width: min(820px, calc(100% - 96px));
  margin-inline: auto;
  text-align: center;
}

.final-cta-title {
  margin-top: 12px;
}

.final-price-line {
  margin: 8px 0 0;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--gold-200);
}

/* ===== フッター ===== */

.site-footer {
  padding: 32px 0 40px;
  background: var(--white);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: center;
  align-items: center;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-sub);
}

/* ===== スマホ固定CTA ===== */

.mobile-cta-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.97);
  border-top: 1px solid var(--line-light);
  transform: translateY(120%);
  transition: transform 0.24s ease;
  display: none;
}

.mobile-cta-bar.is-visible {
  transform: translateY(0);
}

.mobile-cta-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  gap: 6px;
}

.mobile-cta-meta {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-900);
  text-align: center;
}

.mobile-cta-inner .btn {
  height: 54px;
  width: 100%;
}

/* ===== モバイル ===== */

@media (max-width: 719px) {
  .content-container,
  .reading-container,
  .empathy-inner,
  .reason-price-inner,
  .faq-inner,
  .final-cta-inner {
    width: calc(100% - 40px);
  }

  .hero-inner {
    width: 100%;
  }

  .mobile-cta-inner {
    width: calc(100% - 40px);
  }

  .section {
    padding-block: 56px;
  }

  .hero-section {
    min-height: auto;
    padding-block: 80px 40px;
  }

  .sp-only {
    display: inline;
  }

  .hero-title {
    font-size: clamp(30px, 8vw, 38px);
  }

  .section-title {
    font-size: clamp(26px, 7vw, 32px);
  }

  .section-title-small {
    font-size: clamp(24px, 6.5vw, 28px);
  }

  .empathy-list li {
    font-size: clamp(18px, 4.6vw, 20px);
  }

  .empathy-bridge {
    font-size: clamp(22px, 5.8vw, 26px);
  }

  .emphasis-line {
    font-size: clamp(22px, 6vw, 27px);
    margin-bottom: 28px;
  }

  .emphasis-line-strong {
    margin-top: 44px;
  }

  .body-text,
  .plain-list li {
    font-size: clamp(17px, 4.2vw, 18px);
    line-height: 1.85;
  }

  .matching-heading {
    max-width: none;
  }

  .matching-steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .reassurance-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .member-card {
    padding: 32px 24px;
  }

  .notice-list-wrap {
    width: 100%;
  }

  .reason-title-rule {
    margin: 20px auto 32px;
  }

  .pricing-card {
    margin-top: 40px;
    border-radius: 16px;
  }

  .pricing-card__main {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 28px 24px;
  }

  .pricing-card__left {
    text-align: center;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line-light);
  }

  .pricing-card__divider {
    display: none;
  }

  .price-amount {
    font-size: clamp(40px, 13vw, 48px);
  }

  .pricing-card__cta-row {
    padding: 24px;
  }

  .btn {
    width: 100%;
  }

  .mobile-cta-bar {
    display: block;
  }
}

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

  .btn,
  .mobile-cta-bar,
  .faq-icon,
  .faq-answer {
    transition: none;
  }
}