/* =============================================
   DESIGN TOKENS
   ============================================= */
:root {
  --color-charcoal:   #1A1714;
  --color-terracotta: #C96B35;
  --color-beige:      #E8C9A0;
  --color-cream:      #F5EFE6;
  --color-brown:      #3D2E22;
  --color-muted:      #8C6A50;
  --color-border:     #D9CFC4;
  --color-white:      #FFFFFF;

  --font-ja:    'Noto Sans JP', sans-serif;
  --font-en:    'Inter', sans-serif;

  --spacing-xs:  8px;
  --spacing-sm:  16px;
  --spacing-md:  32px;
  --spacing-lg:  64px;
  --spacing-xl:  96px;
  --spacing-xxl: 128px;

  --container-max: 1080px;
  --container-pad-pc: 48px;
  --container-pad-sp: 24px;
}

/* =============================================
   BASE
   ============================================= */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-ja);
  font-size: 16px;
  color: var(--color-brown);
  background: var(--color-cream);
  line-height: 1.7;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad-pc);
}

/* =============================================
   COMMON COMPONENTS
   ============================================= */
.accent-line {
  display: block;
  width: 36px;
  height: 4px;
  background: var(--color-terracotta);
  margin-bottom: var(--spacing-md);
}
.accent-line--center {
  margin-left: auto;
  margin-right: auto;
}

.btn-primary {
  display: inline-block;
  background: linear-gradient(180deg, #D4723C 0%, #C96B35 100%);
  color: var(--color-white);
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: 16px;
  padding: 16px 40px;
  border-radius: 4px;
  box-shadow:
    0 6px 12px rgba(201,107,53,0.55),
    0 2px 8px rgba(0,0,0,0.30);
  transition: box-shadow 0.2s, transform 0.2s, opacity 0.2s;
}
.btn-primary:hover {
  background: linear-gradient(180deg, #DC7A44 0%, #D07240 100%);
  box-shadow:
    0 6px 12px rgba(201,107,53,0.65),
    0 2px 8px rgba(0,0,0,0.30);
}
.btn-primary.btn--small { padding: 10px 24px; font-size: 14px; }
.btn-primary.btn--large { padding: 20px 56px; font-size: 17px; }

.btn-secondary {
  display: inline-block;
  background: rgba(255,255,255,0.04);
  color: var(--color-cream);
  font-family: var(--font-ja);
  font-weight: 500;
  font-size: 16px;
  padding: 15px 40px;
  border-radius: 4px;
  border: 1.5px solid rgba(245, 239, 230, 0.65);
  box-shadow:
    0 4px 16px rgba(0,0,0,0.28),
    inset 0 1px 0 rgba(255,255,255,0.08);
  transition: all 0.2s;
}
.btn-secondary:hover {
  border-color: var(--color-cream);
  background: rgba(245,239,230,0.12);
  box-shadow:
    0 4px 16px rgba(0,0,0,0.28),
    inset 0 1px 0 rgba(255,255,255,0.08);
}

/* =============================================
   ANIMATIONS
   ============================================= */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-charcoal);
  height: 72px;
  transition: box-shadow 0.3s;
}
.navbar.is-scrolled {
  box-shadow: 0 2px 16px rgba(0,0,0,0.3);
}
.navbar__inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar__logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.navbar__logo-en {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 22px;
  color: var(--color-cream);
  letter-spacing: 0.02em;
}
.navbar__tagline {
  font-family: var(--font-ja);
  font-weight: 400;
  font-size: 13px;
  color: var(--color-cream);
  margin-left: 8px;
  white-space: nowrap;
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  background: var(--color-charcoal);
  padding: 120px 0;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1573496359142-b8d87734a5a2?auto=format&fit=crop&w=1800&q=80');
  background-size: cover;
  background-position: center right;
  background-repeat: no-repeat;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(26,23,20,0.97) 45%, rgba(26,23,20,0.6) 75%, rgba(26,23,20,0.25) 100%);
}
.hero__content {
  position: relative;
  max-width: 760px;
}
.hero__label {
  font-family: var(--font-ja);
  font-weight: 500;
  font-size: 22px;
  color: var(--color-beige);
  margin-bottom: var(--spacing-sm);
  display: block;
}
.hero__title {
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: 42px;
  color: var(--color-cream);
  line-height: 1.45;
  margin-bottom: var(--spacing-md);
}
.hero__body {
  font-size: 18px;
  color: var(--color-beige);
  line-height: 1.9;
  margin-bottom: 48px;
}
.hero__title-highlight {
  font-size: 1.38em;
}
.hero__title-particle {
  font-size: 0.82em;
  vertical-align: baseline;
}
.hero__cta {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

/* =============================================
   SECTION BASE
   ============================================= */
.section { padding: var(--spacing-xl) 0; }
.section--dark { background: var(--color-charcoal); padding: var(--spacing-xl) 0; }
.section--sm { padding: 80px 0; }

.section__label {
  font-family: var(--font-ja);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-terracotta);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}
.section__title {
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: 36px;
  color: var(--color-charcoal);
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
}
.section__title--light { color: var(--color-cream); }
.section__sub {
  font-size: 17px;
  color: var(--color-muted);
  margin-bottom: var(--spacing-md);
}

/* =============================================
   SECTION 1: ABOUT
   ============================================= */
.about__grid {
  display: grid;
  grid-template-columns: 60fr 40fr;
  gap: 64px;
  align-items: center;
}
.about__body {
  font-size: 18px;
  color: var(--color-brown);
  line-height: 2.0;
}
.about__body p + p { margin-top: 24px; }

.about__card {
  background: var(--color-charcoal);
  border-radius: 8px;
  padding: 40px 32px;
}
.about__stat + .about__stat {
  border-top: 1px solid #3D2E22;
  margin-top: 32px;
  padding-top: 32px;
}
.about__stat-label {
  font-size: 14px;
  color: rgba(232,201,160,0.75);
  line-height: 1.6;
  margin-bottom: 12px;
}
.about__stat-number {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 40px;
  line-height: 1.1;
  margin-bottom: 8px;
}
.about__stat-number--terracotta { color: var(--color-terracotta); }
.about__stat-number--beige { color: var(--color-beige); }
.about__stat-source { font-size: 11px; color: rgba(232,201,160,0.45); }

/* =============================================
   SECTION 2: NOTE / INSTAGRAM
   ============================================= */
.media__header { margin-bottom: 40px; }
.media__lead {
  font-size: 16px;
  color: var(--color-beige);
  line-height: 1.9;
  margin-top: 24px;
}
.media__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.media-card {
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.media-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.media-card--note { background: var(--color-cream); }
.media-card--instagram {
  background: linear-gradient(160deg, #2E1828 0%, #1C1220 100%);
  border: 1px solid rgba(180,100,160,0.30);
}

/* Card banner / visual header */
.media-card__banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 32px 20px;
}
.media-card__banner-platform {
  display: flex;
  align-items: center;
  gap: 12px;
}
.media-card__banner-account {
  display: flex;
  align-items: center;
  gap: 7px;
}
.media-card__banner-account-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 6px;
}
.media-card--note .media-card__banner-account-name {
  font-size: 12px;
  color: var(--color-muted);
  font-family: var(--font-en);
}
.media-card--instagram .media-card__banner-account-name {
  font-size: 12px;
  color: rgba(232,201,160,0.55);
  font-family: var(--font-en);
}
.media-card--note .media-card__banner {
  background: #EDE5D8;
  border-bottom: 1px solid var(--color-border);
}
.media-card--instagram .media-card__banner {
  background: linear-gradient(135deg, #2E1A28 0%, #1E1018 100%);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
/* note: 横型ロゴ（no+e） */
.media-card--note .media-card__banner-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}
/* Instagram: 正方形グリフロゴ */
.media-card--instagram .media-card__banner-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
}
.media-card__banner-name {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.04em;
}
.media-card--note .media-card__banner-name { color: var(--color-brown); }
.media-card--instagram .media-card__banner-name { color: var(--color-cream); }

/* Card body */
.media-card__body {
  padding: 28px 32px 36px;
}
.media-card__title {
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.4;
  margin-bottom: 14px;
}
.media-card--note .media-card__title { color: var(--color-charcoal); }
.media-card--instagram .media-card__title { color: var(--color-cream); }
.media-card__desc {
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 24px;
  flex: 1;
}
.media-card--note .media-card__desc { color: var(--color-brown); }
.media-card--instagram .media-card__desc { color: rgba(232,201,160,0.8); }
.media-card__link {
  display: inline-block;
  align-self: flex-start;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-terracotta);
  border: 1.5px solid var(--color-terracotta);
  border-radius: 4px;
  padding: 8px 20px;
  transition: background 0.2s, color 0.2s;
}
.media-card__link:hover {
  background: var(--color-terracotta);
  color: #fff;
}

/* =============================================
   SECTION 3: ROLES
   ============================================= */
.roles__list { margin-top: 40px; }
.role-item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  border-top: 1px solid var(--color-border);
  padding: 28px 0;
}
.role-item:last-child { border-bottom: 1px solid var(--color-border); }
.role-item__num {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 32px;
  color: var(--color-terracotta);
  width: 80px;
  flex-shrink: 0;
  line-height: 1;
  padding-top: 4px;
}
.role-item__name {
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: 20px;
  color: var(--color-charcoal);
  margin-bottom: 6px;
  line-height: 1.4;
}
.role-item__desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

/* =============================================
   SECTION 4: DATA
   ============================================= */
.data__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.section--data {
  background: #0D0B09;
}
.data-card {
  background: #3A2E26;
  border-radius: 8px;
  padding: 40px 32px;
  border-top: 3px solid var(--color-terracotta);
  border-left: 1px solid rgba(255,255,255,0.10);
  border-right: 1px solid rgba(255,255,255,0.10);
  border-bottom: 1px solid rgba(255,255,255,0.10);
}
.data-card__number {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 36px;
  color: #F09060;
  line-height: 1.1;
  margin-bottom: 14px;
}
.data-card__label {
  font-size: 14px;
  color: rgba(232,201,160,0.95);
  line-height: 1.6;
  margin-bottom: 14px;
}
.data-card__note {
  font-size: 13px;
  color: rgba(232,201,160,0.75);
  line-height: 1.75;
}
.data__source {
  font-size: 13px;
  color: var(--color-muted);
  text-align: right;
  margin-top: 32px;
}

/* =============================================
   SECTION 5: HOW IT WORKS
   ============================================= */
.steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 48px;
}
.step-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px 32px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
}
.step-item__num {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 12px;
  color: var(--color-white);
  background: var(--color-terracotta);
  letter-spacing: 0.06em;
  flex-shrink: 0;
  padding: 4px 12px;
  border-radius: 4px;
  white-space: nowrap;
  margin-top: 3px;
}
.step-item__name {
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: 18px;
  color: var(--color-charcoal);
  margin-bottom: 6px;
  line-height: 1.4;
}
.step-item__desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.8;
}
/* Step 1 のみCTAボタン付きレイアウト */
.step-item--cta {
  align-items: center;
}
.step-item--cta .step-item__content {
  flex: 1;
}
.step-item--cta .btn-primary {
  flex-shrink: 0;
  margin-left: 32px;
  white-space: nowrap;
  font-size: 15px;
  padding: 14px 28px;
}

/* =============================================
   SECTION 6: FAQ
   ============================================= */
.faq { border-top: 1px solid var(--color-border); }
.faq__title {
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: 28px;
  color: var(--color-charcoal);
  margin-bottom: var(--spacing-md);
}
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question {
  width: 100%;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-family: var(--font-ja);
  font-weight: 500;
  font-size: 16px;
  color: var(--color-charcoal);
  gap: 16px;
  transition: color 0.2s;
}
.faq-question:hover { color: var(--color-terracotta); }
.faq-question .faq-q { color: var(--color-terracotta); margin-right: 8px; }
.faq-icon {
  width: 24px;
  height: 24px;
  border: 1.5px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-muted);
  flex-shrink: 0;
  transition: transform 0.35s ease, border-color 0.2s;
}
.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--color-terracotta);
  color: var(--color-terracotta);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 0 0 24px;
  font-size: 15px;
  color: var(--color-brown);
  line-height: 1.9;
  transition: max-height 0.35s ease, padding-bottom 0.35s ease;
}
.faq-answer a { color: var(--color-terracotta); text-decoration: underline; }
.faq-item.is-open .faq-answer {
  max-height: 300px;
  padding-bottom: 24px;
}

/* =============================================
   FINAL CTA
   ============================================= */
.final-cta {
  background: var(--color-charcoal);
  padding: var(--spacing-xl) 0;
  text-align: center;
}
.final-cta .accent-line { margin: 0 auto var(--spacing-md); }
.final-cta__title {
  font-family: var(--font-ja);
  font-weight: 700;
  font-size: 36px;
  color: var(--color-cream);
  line-height: 1.6;
  margin-bottom: 24px;
}
.final-cta__body {
  font-size: 17px;
  color: var(--color-beige);
  line-height: 1.9;
  margin-bottom: 40px;
}
.final-cta__note {
  font-size: 14px;
  color: rgba(140,106,80,0.9);
  margin-top: 16px;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: #0F0D0C;
  padding: 48px 0;
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
}
.footer__logo-en {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 20px;
  color: var(--color-cream);
}
.footer__logo-ja {
  font-size: 13px;
  color: #A68B6E;
  margin-left: 8px;
}
.footer__tagline,
.footer__company {
  font-size: 13px;
  color: #A68B6E;
  margin-top: 8px;
  line-height: 1.7;
}
.footer__company a {
  color: #A68B6E;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer__company a:hover {
  color: var(--color-beige);
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: right;
}
.footer__links a {
  font-size: 14px;
  color: #A68B6E;
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--color-cream); }
.footer__copy {
  border-top: 1px solid #2E2620;
  margin-top: 32px;
  padding-top: 24px;
  font-size: 13px;
  color: #7A6050;
  text-align: center;
}

/* =============================================
   SECTION EN LABEL
   ============================================= */
.section__en-label {
  display: block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-terracotta);
  text-transform: uppercase;
  margin-bottom: 6px;
}

/* =============================================
   ARTICLES CAROUSEL（dark section 内）
   ============================================= */
.articles-carousel {
  margin-top: 52px;
  padding-top: 44px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.articles-carousel__header {
  margin-bottom: 28px;
}
.articles-carousel__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-cream);
  margin-bottom: 8px;
  font-family: var(--font-ja);
}
.articles-carousel__desc {
  font-size: 14px;
  color: rgba(232,201,160,0.75);
  line-height: 1.6;
}
.articles-carousel__wrapper {
  position: relative;
}
.articles-carousel__viewport {
  overflow: hidden;
  position: relative;
}
/* 左右フェードグラデーション */
.articles-carousel__viewport::before,
.articles-carousel__viewport::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 120px;
  z-index: 5;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.articles-carousel__viewport::before {
  left: 0;
  background: linear-gradient(to right, rgba(26,23,20,1) 0%, rgba(26,23,20,0) 100%);
  opacity: 0;
}
.articles-carousel__viewport::after {
  right: 0;
  background: linear-gradient(to left, rgba(26,23,20,1) 0%, rgba(26,23,20,0) 100%);
  opacity: 1;
}
.articles-carousel__viewport.is-scrolled::before { opacity: 1; }
.articles-carousel__viewport.is-at-end::after   { opacity: 0; }

.articles-carousel__track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: 100px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.articles-carousel__track::-webkit-scrollbar { display: none; }
.articles-carousel__track .article-card {
  flex: 0 0 calc((100% - 40px) / 3.33);
  scroll-snap-align: start;
  background: #2A2320;
  border: 1px solid #3D3028;
}
.articles-carousel__track .article-card:last-child {
  scroll-snap-align: end;
}
.articles-carousel__track .article-card__title {
  color: var(--color-cream);
}
.articles-carousel__track .article-card__date {
  color: rgba(232,201,160,0.6);
}
.articles-carousel__btn {
  position: absolute;
  top: 40%;
  transform: translateY(-50%);
  z-index: 10;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid rgba(232,201,160,0.45);
  background: rgba(26,23,20,0.80);
  color: var(--color-cream);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s, opacity 0.2s;
  line-height: 1;
  backdrop-filter: blur(4px);
}
.articles-carousel__btn--prev { left: 12px; }
.articles-carousel__btn--next { right: 12px; }
.articles-carousel__btn:hover {
  background: var(--color-terracotta);
  border-color: var(--color-terracotta);
}
.articles-carousel__btn:disabled {
  opacity: 0.30;
  cursor: default;
  pointer-events: none;
}
.articles-carousel__footer {
  text-align: right;
  margin-top: 16px;
}
.articles-carousel__footer a {
  font-size: 13px;
  color: rgba(232,201,160,0.75);
  text-decoration: none;
  border-bottom: 1px solid rgba(232,201,160,0.3);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.articles-carousel__footer a:hover {
  color: var(--color-cream);
  border-color: var(--color-cream);
}

/* Article Card（共通） */
.article-card {
  display: flex;
  flex-direction: column;
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.22s, transform 0.22s;
}
.article-card:hover {
  box-shadow: 0 8px 28px rgba(0,0,0,0.35);
  transform: translateY(-4px);
}
.article-card__thumb {
  aspect-ratio: 1.91 / 1;
  overflow: hidden;
  background: #1e1a17;
  flex-shrink: 0;
}
.article-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s;
}
.article-card:hover .article-card__thumb img {
  transform: scale(1.05);
}
.article-card__body {
  padding: 16px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.article-card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-terracotta);
  background: rgba(201,107,53,0.15);
  padding: 3px 9px;
  border-radius: 3px;
  letter-spacing: 0.03em;
  align-self: flex-start;
}
.article-card__title {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.article-card__date {
  font-family: var(--font-en);
  font-size: 11px;
  color: rgba(232,201,160,0.6);
  display: block;
}

/* =============================================
   MECHANISM DIAGRAM
   ============================================= */
.mechanism {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-top: 56px;
  overflow-x: auto;
  padding: 8px 0 4px;
}
.mechanism__node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  width: 100px;
}
.mechanism__circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-cream);
  border: 2px solid #ddd4c8;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.mechanism__node-label {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-brown);
  text-align: center;
}
.mechanism__node-sub {
  font-size: 12px;
  color: var(--color-muted);
  text-align: center;
  margin-top: -6px;
}
.mechanism__connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
  padding: 0 4px;
}
.mechanism__conn-text {
  font-size: 11px;
  color: var(--color-muted);
  white-space: nowrap;
  line-height: 1.4;
  letter-spacing: 0.02em;
}
.mechanism__conn-svg {
  display: block;
}
.mechanism__center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}
.mechanism__circle-wrap {
  background: rgba(201,107,53,0.06);
  border: 2px dashed rgba(201,107,53,0.55);
  border-radius: 80px;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  gap: 16px;
}
.mechanism__boxes {
  display: flex;
  align-items: center;
  gap: 0;
}
.mechanism__advisor-box {
  background: var(--color-charcoal);
  color: var(--color-cream);
  padding: 20px 22px;
  text-align: center;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.65;
  border-radius: 6px;
  min-width: 130px;
}
.mechanism__match {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 0 14px;
}
.mechanism__match-label {
  font-size: 11px;
  color: var(--color-muted);
  white-space: nowrap;
}
.mechanism__brand {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-terracotta);
  letter-spacing: 0.06em;
  padding-right: 20px;
  border-right: 1.5px solid rgba(201, 107, 53, 0.3);
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* =============================================
   RESPONSIVE (SP: 768px以下)
   ============================================= */
@media (max-width: 768px) {
  .container { padding: 0 var(--container-pad-sp); }

  /* ベースフォントサイズを縮小（全体テキストの詰まり感を解消） */
  body { font-size: 12px; line-height: 1.85; }

  /* Navbar：CTAボタンはスマホでは非表示 */
  .navbar { height: 60px; }
  .navbar__inner { height: 60px; }
  .navbar__logo-en { font-size: 18px; }
  .navbar .btn--small { display: none; }

  /* Hero */
  .hero { padding: 80px 0 100px; min-height: 100svh; display: flex; flex-direction: column; justify-content: center; }
  .hero__bg { background-position: center; }
  .hero__overlay {
    background: linear-gradient(to right, rgba(26,23,20,0.95) 0%, rgba(26,23,20,0.85) 100%);
  }
  .hero__label { font-size: 13px; }
  .hero__title { font-size: 24px; }
  .hero__title-highlight { font-size: 1em; }
  .hero__body { font-size: 14px; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn-primary,
  .hero__cta .btn-secondary { text-align: center; width: 100%; }

  /* Sections */
  .section { padding: 64px 0; }
  .section--dark { padding: 64px 0; }
  .section--sm { padding: 56px 0; }
  .section__title { font-size: 20px; }
  .section__sub { font-size: 14px; }

  /* About */
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .about__stat-number { font-size: 32px; }
  .about__body { font-size: 14px; }

  /* Media */
  .media__grid { grid-template-columns: 1fr; }
  .media-card__banner { padding: 20px 24px 16px; }
  .media-card__body { padding: 24px 24px 32px; }

  /* Roles */
  .role-item__num { font-size: 24px; width: 56px; }
  .role-item__name { font-size: 17px; }

  /* Data */
  .data__grid { grid-template-columns: 1fr; }
  .data-card__number { font-size: 30px; }

  /* Steps：Step1 CTAを縦並びに */
  .step-item { padding: 22px 22px; gap: 16px; }
  .step-item__name { font-size: 16px; }
  .step-item--cta { flex-wrap: wrap; }
  .step-item--cta .btn-primary {
    margin-left: 0;
    margin-top: 14px;
    width: 100%;
    text-align: center;
    font-size: 14px;
    padding: 14px 16px;
  }

  /* Final CTA */
  .final-cta__title { font-size: 22px; }
  .final-cta .btn-primary { padding: 18px 28px; font-size: 15px; }

  /* Footer */
  .footer__inner { flex-direction: column; }
  .footer__links { text-align: left; }

  /* Articles Carousel：スマホは1枚表示・グラデーション幅を縮小 */
  .articles-carousel__track {
    scroll-padding-left: 0;
  }
  .articles-carousel__track .article-card { flex: 0 0 calc(100% - 20px); }
  .articles-carousel__btn { width: 36px; height: 36px; }
  .articles-carousel__viewport::before,
  .articles-carousel__viewport::after { width: 48px; }

  /* Mechanism：モバイル コンパクトリデザイン */
  .mechanism {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 0;
    overflow-x: visible;
    margin-top: 20px;
  }
  /* 求職者・採用企業：横長ピル型ボックス（コンパクト） */
  .mechanism__node {
    width: 100%;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: rgba(201, 107, 53, 0.07);
    border: 1px solid rgba(201, 107, 53, 0.25);
    border-radius: 50px;
    padding: 10px 20px;
  }
  .mechanism__circle {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    flex-shrink: 0;
  }
  .mechanism__node-label { font-size: 14px; margin: 0; }
  .mechanism__node-sub { font-size: 10px; margin-top: 1px; }
  /* コネクター：ラベル ↑↓ ラベル の横並び */
  .mechanism__connector {
    transform: none;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 4px 0;
    padding: 0;
  }
  .mechanism__conn-text {
    display: block;
    transform: none;
    white-space: nowrap;
    font-size: 10px;
    min-width: 52px;
    text-align: center;
  }
  .mechanism__conn-svg {
    width: 44px;
    height: 44px;
    transform: rotate(90deg);
    flex-shrink: 0;
  }
  .mechanism__conn-svg line { stroke-width: 3; }
  /* Forgeセンターボックス */
  .mechanism__center { width: 100%; }
  .mechanism__circle-wrap {
    width: 100%;
    border-radius: 12px;
    padding: 12px 12px;
    gap: 0;
    align-items: stretch;
  }
  /* Forge：左カラム・縦中央揃え */
  .mechanism__brand {
    font-size: 22px;
    padding-right: 12px;
    padding-left: 4px;
    border-right: 1px solid rgba(201, 107, 53, 0.3);
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    min-width: 54px;
    text-align: center;
  }
  .mechanism__boxes {
    flex: 1;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
  }
  .mechanism__advisor-box {
    min-width: unset;
    width: 100%;
    text-align: center;
    font-size: 13px;
    padding: 11px 12px;
  }
  /* マッチング矢印：矢印の右にラベルを配置 */
  .mechanism__match {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 3px 0;
  }
  .mechanism__match svg {
    width: 40px;
    height: 40px;
    transform: rotate(90deg);
    flex-shrink: 0;
  }
  .mechanism__match svg line { stroke-width: 3; }
  .mechanism__match-label { font-size: 11px; margin: 0; }
}

/* =============================================
   RESPONSIVE (タブレット: 769px〜1024px)
   ============================================= */
@media (min-width: 769px) and (max-width: 1024px) {
  /* Hero：文字サイズを縮小 */
  .hero__title { font-size: 40px; }

  /* Articles Carousel：タブレットは2枚表示 */
  .articles-carousel__track .article-card {
    flex: 0 0 calc((100% - 20px) / 2.3);
  }

  /* Mechanism：タブレット幅に収まるようにコンパクト化 */
  .mechanism { gap: 0; }
  .mechanism__advisor-box {
    min-width: 90px;
    font-size: 12px;
    padding: 14px 12px;
  }
  .mechanism__circle-wrap {
    padding: 20px 20px;
  }
  .mechanism__connector {
    padding: 0 4px;
  }
  .mechanism__node { width: 90px; }
  .mechanism__circle {
    width: 76px;
    height: 76px;
  }
  .mechanism__node-label { font-size: 13px; }
}

/* =============================================
   STICKY CTA（スマートフォン画面下部固定）
   ============================================= */
.sticky-cta { display: none; }

@media (max-width: 768px) {
  /* スクロール時にコンテンツが固定バーの裏に隠れないよう余白を追加 */
  body { padding-bottom: 76px; }

  .sticky-cta {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: rgba(26, 23, 20, 0.96);
    backdrop-filter: blur(8px);
    border-top: 1px solid rgba(201, 107, 53, 0.35);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
  }
  .sticky-cta .btn-primary {
    width: 100%;
    text-align: center;
    font-size: 15px;
    padding: 16px 20px;
    border-radius: 6px;
  }
}