/* ===== CSS Variables ===== */
:root {
  --color-primary: #C0392B;
  --color-primary-dark: #96281B;
  --color-accent-blue: #2E86AB;
  --color-accent-blue-dark: #3A5A8A;
  --color-bg: #0A0F1A;
  --color-surface: #141C2E;
  --color-surface-2: #1B2540;
  --color-text: #f0f0f0;
  --color-text-muted: #8FA3B1;
  --color-border: #1f2a44;
  --color-white: #ffffff;

  --font-sans: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
  --font-serif: 'Noto Serif JP', Georgia, serif;
  --font-display: 'Bebas Neue', 'Noto Sans JP', sans-serif;

  --nav-height: 72px;
  --section-padding: 100px 8vw;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);

  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* ===== Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8vw;
  transition: background var(--transition-base), backdrop-filter var(--transition-base), box-shadow var(--transition-base);
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav__logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-white);
  flex-shrink: 0;
}

.nav__logo span {
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-white);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__cta {
  margin-left: 1rem;
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  cursor: pointer;
  z-index: 1010;
}

.nav__hamburger span {
  display: block;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
  transform-origin: center;
}

.nav__hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger.open span:nth-child(2) {
  opacity: 0;
  width: 0;
}

.nav__hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Mobile nav drawer (fullscreen opaque overlay) ===== */
.nav__drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1050;
  /* Opaque brand dark — background must NOT show through */
  background: var(--color-bg);
  flex-direction: column;
  padding:
    calc(env(safe-area-inset-top, 0px) + 1rem)
    calc(env(safe-area-inset-right, 0px) + 7vw)
    calc(env(safe-area-inset-bottom, 0px) + 1.5rem)
    calc(env(safe-area-inset-left, 0px) + 7vw);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  pointer-events: none;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}

.nav__drawer.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

/* Close (×) button — top right */
.nav__drawer-close {
  align-self: flex-end;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-white);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--transition-base);
}

.nav__drawer-close:hover {
  color: var(--color-primary);
}

/* Menu items list */
.nav__drawer-nav {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: center;
  margin: 0.5rem 0;
}

.nav__drawer-link {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 56px;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-white);
  transition: opacity var(--transition-base);
}

.nav__drawer-link:active {
  opacity: 0.55;
}

.nav__drawer-link-main {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.1;
  color: var(--color-white);
}

.nav__drawer-link-sub {
  margin-top: 0.2rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.nav__drawer-link.active .nav__drawer-link-main {
  color: var(--color-primary);
}

.nav__drawer-link--cta .nav__drawer-link-main {
  color: var(--color-primary);
}

/* Bottom contact row: phone / LINE / mail */
.nav__drawer-contact {
  display: flex;
  gap: 0.6rem;
  flex-shrink: 0;
  padding-top: 1.25rem;
  margin-top: 0.5rem;
  border-top: 1px solid var(--color-border);
}

.nav__drawer-contact-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 56px;
  padding: 0.65rem 0.25rem;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-white);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-align: center;
  transition: border-color var(--transition-base), color var(--transition-base);
}

.nav__drawer-contact-item:hover,
.nav__drawer-contact-item:active {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.nav__drawer-contact-item svg {
  width: 22px;
  height: 22px;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 64px 8vw 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer__brand {}

.footer__logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer__logo span {
  color: var(--color-primary);
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.footer__sns {
  display: flex;
  gap: 1rem;
}

.footer__sns a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  transition: border-color var(--transition-base), color var(--transition-base);
}

.footer__sns a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.footer__nav-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.footer__nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__nav-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.footer__nav-links a:hover {
  color: var(--color-white);
}

.footer__info address {
  font-style: normal;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 2;
}

.footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__copyright {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer__legal {
  display: flex;
  gap: 1.5rem;
}

.footer__legal a {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.footer__legal a:hover {
  color: var(--color-white);
}

/* ===== Section Common ===== */
.section {
  padding: var(--section-padding);
}

.section--dark {
  background: var(--color-surface);
}

.section__header {
  text-align: center;
  margin-bottom: 4rem;
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.section__title {
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.section__lead {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base),
              border-color var(--transition-base), box-shadow var(--transition-base),
              transform var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: 0 4px 20px rgba(192, 57, 43, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-bg);
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

/* ===== Cards ===== */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  box-shadow: var(--shadow-card);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(192, 57, 43, 0.3);
}

.card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.card__body {
  padding: 1.5rem;
}

.card__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.card__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.card__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.card__footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ===== Grids ===== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* ===== Utility ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
}

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }

.mt-auto { margin-top: auto; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* ===== Responsive: 1024px ===== */
@media (max-width: 1024px) {
  :root {
    --nav-height: 64px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* ===== Responsive: 768px ===== */
@media (max-width: 768px) {
  :root {
    --section-padding: 72px 5vw;
    --nav-height: 60px;
  }

  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__drawer {
    display: flex;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .section__title {
    font-size: 1.75rem;
  }

  .btn-lg {
    padding: 0.875rem 2rem;
  }
}

/* ============================================
   Page-shared components (sub-pages)
   ============================================ */

/* ===== Display utility ===== */
.display-en {
  font-family: var(--font-display);
  letter-spacing: 0.04em;
}

/* ===== Section label color variant ===== */
.section__label--accent { color: var(--color-primary); }

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  padding: 0 8vw;
  isolation: isolate;
  overflow: hidden;
  margin-top: var(--nav-height);
}

.page-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  filter: grayscale(0.15) brightness(0.85);
}

.page-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(to right, rgba(10, 15, 26, 0.88) 0%, rgba(10, 15, 26, 0.55) 80%);
}

.page-hero__inner {
  position: relative;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.page-hero__breadcrumb {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.page-hero__breadcrumb a {
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.page-hero__breadcrumb a:hover { color: var(--color-primary); }

.page-hero__sep { color: var(--color-primary); }

.page-hero__en {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  letter-spacing: 0.04em;
  line-height: 1;
  color: #fff;
  margin-bottom: 0.5rem;
}

.page-hero__ja {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.08em;
}

.page-hero__redline {
  width: 60px;
  height: 4px;
  background: var(--color-primary);
  margin-bottom: 1.25rem;
}

/* ===== Page section variants ===== */
.section--bg-dark { background: #0A0F1A; }
.section--bg-mid { background: #141C2E; }

.section__lead-block {
  max-width: 800px;
  margin: 0 auto 3rem;
  text-align: center;
}

/* ===== Long-form prose ===== */
.prose {
  max-width: 820px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 2.1;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.prose p + p { margin-top: 1.5rem; }

.prose strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* ===== Pillar cards (3-pillar layout) ===== */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top-width: 4px;
  border-radius: 4px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  min-height: 260px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
}

.pillar-card--red { border-top-color: #C0392B; }
.pillar-card--blue { border-top-color: #2E86AB; }
.pillar-card--navy { border-top-color: #3A5A8A; }

.pillar-card__num {
  font-family: var(--font-display);
  color: var(--color-primary);
  font-size: 1rem;
  letter-spacing: 0.2em;
  margin-bottom: 0.75rem;
}

.pillar-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
  line-height: 1.5;
}

.pillar-card__text {
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--color-text-muted);
}

/* ===== Bordered feature list (2-column) ===== */
.feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 1100px;
  margin: 0 auto;
}

.feature-list__item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  padding: 1.25rem 1.5rem;
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.6;
  transition: background var(--transition-base), padding var(--transition-base);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.feature-list__item:hover {
  background: rgba(192, 57, 43, 0.06);
  padding-left: 1.75rem;
}

.feature-list__item::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== Target cards (3-column) ===== */
.targets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.target-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.target-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.target-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.target-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.target-card__text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== Flow diagram ===== */
.flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  padding: 2rem 0 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.flow__step {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  padding: 1.25rem 1.25rem;
  min-width: 140px;
  text-align: center;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform var(--transition-base);
}

.flow__step:hover { transform: translateY(-3px); }

.flow__step--accent {
  background: rgba(192, 57, 43, 0.1);
  border-color: rgba(192, 57, 43, 0.4);
}

.flow__num {
  font-family: var(--font-display);
  color: var(--color-primary);
  font-size: 1rem;
  letter-spacing: 0.15em;
  line-height: 1;
}

.flow__label {
  font-size: 0.95rem;
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.flow__arrow {
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flow__zone {
  position: relative;
  border: 2px solid var(--color-primary);
  border-radius: 6px;
  padding: 1.5rem 1.25rem 1.25rem;
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.flow__zone-label {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  padding: 4px 14px;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  border-radius: 2px;
  font-family: var(--font-display);
  white-space: nowrap;
}

@media (max-width: 768px) {
  .flow { flex-direction: column; }
  .flow__arrow { transform: rotate(90deg); margin: 0; }
  .flow__step { width: 100%; max-width: 280px; }
  .flow__zone { flex-direction: column; width: 100%; max-width: 280px; }
  .flow__zone .flow__arrow { transform: rotate(90deg); }
}

/* ===== Image + Text split (60/40) ===== */
.split {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: 3rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.split--reverse { grid-template-columns: 40% 60%; }

.split__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

.split__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split__body h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.split__body p {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text-muted);
}

.split__body p + p { margin-top: 1rem; }

/* ===== Related-pages cross-nav ===== */
.related-nav {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 80px 8vw;
}

.related-nav__title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.25em;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: 2.5rem;
}

.related-nav__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  max-width: 1100px;
  margin: 0 auto;
}

.related-nav__card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  padding: 1.5rem 1.25rem;
  transition: background var(--transition-base), transform var(--transition-base), border-left-color var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.related-nav__card:hover {
  background: rgba(192, 57, 43, 0.06);
  transform: translateX(4px);
}

.related-nav__card-en {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  color: #fff;
  line-height: 1;
}

.related-nav__card-ja {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.related-nav__card-arrow {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-primary);
  font-family: var(--font-display);
  letter-spacing: 0.15em;
}

/* ===== Page contact CTA ===== */
.page-contact-cta {
  background: var(--color-primary);
  padding: 100px 8vw;
  text-align: center;
}

.page-contact-cta__label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.85);
  margin-bottom: 1rem;
}

.page-contact-cta__title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.page-contact-cta__lead {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.92);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.page-contact-cta .btn-outline {
  border-color: #fff;
  color: #fff;
  background: transparent;
}

.page-contact-cta .btn-outline:hover {
  background: #fff;
  color: var(--color-primary);
}

/* ===== Page-shared responsive ===== */
@media (max-width: 1024px) {
  .pillars { grid-template-columns: 1fr; }
  .targets { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .split,
  .split--reverse { grid-template-columns: 1fr; gap: 2rem; }
  .split__media { max-width: 100%; }
}

@media (max-width: 768px) {
  .page-hero { height: 320px; padding: 0 5vw; }
  .related-nav { padding: 60px 5vw; }
  .page-contact-cta { padding: 70px 5vw; }
}

/* ============================================
   Sub-page extras
   ============================================ */

/* ===== Status badge ===== */
.status-badge {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  padding: 0.4rem 1rem;
  border-radius: 2px;
}

.status-badge--large {
  font-size: 1.2rem;
  padding: 0.6rem 1.6rem;
  letter-spacing: 0.3em;
  box-shadow: 0 8px 28px rgba(192, 57, 43, 0.4);
}

/* ===== Feature cards (4-card spec layout) ===== */
.feature-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  padding: 1.75rem 1.75rem;
  border-radius: 4px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.45);
}

.feature-card--blue { border-left-color: #2E86AB; }
.feature-card--navy { border-left-color: #3A5A8A; }

.feature-card__num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.feature-card--blue .feature-card__num { color: #2E86AB; }

.feature-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.feature-card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.9;
}

/* ===== Italic note ===== */
.italic-note {
  font-style: italic;
  color: #8FA3B1;
  font-size: 0.9rem;
  line-height: 1.9;
  max-width: 820px;
  margin: 2.5rem auto 0;
  padding: 1.25rem 1.5rem;
  border-left: 2px solid var(--color-border);
  background: rgba(255,255,255,0.02);
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-primary);
  transform: translateX(-50%);
}

.timeline__item {
  position: relative;
  width: 50%;
  padding: 0.5rem 2.5rem 0.5rem 0;
  margin-bottom: 2rem;
  box-sizing: border-box;
}

.timeline__item--right {
  margin-left: 50%;
  padding: 0.5rem 0 0.5rem 2.5rem;
  text-align: left;
}

.timeline__item--left {
  text-align: right;
  padding-right: 2.5rem;
}

.timeline__dot {
  position: absolute;
  width: 18px;
  height: 18px;
  background: var(--color-primary);
  border-radius: 50%;
  top: 1.5rem;
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
  z-index: 2;
}

.timeline__item--left .timeline__dot { right: -10px; }
.timeline__item--right .timeline__dot { left: -10px; }

.timeline__content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.5rem 1.75rem;
  border-radius: 4px;
}

.timeline__phase {
  font-family: var(--font-display);
  color: var(--color-primary);
  font-size: 1.25rem;
  letter-spacing: 0.12em;
  display: inline-block;
}

.timeline__when {
  display: inline-block;
  margin-left: 0.75rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

.timeline__content ul {
  margin-top: 1rem;
  padding-left: 1.25rem;
  list-style: disc;
  text-align: left;
}

.timeline__content li {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.9;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .timeline::before { left: 14px; }
  .timeline__item,
  .timeline__item--right,
  .timeline__item--left {
    width: 100%;
    margin-left: 0;
    padding: 0.5rem 0 0.5rem 2.5rem;
    text-align: left;
  }
  .timeline__item--left .timeline__dot,
  .timeline__item--right .timeline__dot {
    left: 6px;
    right: auto;
  }
}

/* ===== Role list (left blue border) ===== */
.role-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 480px;
}

.role-list__item {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--color-border);
  border-left: 3px solid #2E86AB;
  padding: 1rem 1.5rem;
  font-size: 0.95rem;
  color: #fff;
  letter-spacing: 0.04em;
  transition: padding var(--transition-base), background var(--transition-base);
}

.role-list__item:hover {
  background: rgba(46, 134, 171, 0.08);
  padding-left: 1.75rem;
}

.role-list__item small {
  display: block;
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ===== Note box ===== */
.note-box {
  border: 2px solid var(--color-primary);
  background: rgba(192, 57, 43, 0.06);
  padding: 1.5rem 2rem;
  border-radius: 4px;
  max-width: 820px;
  margin: 0 auto;
  position: relative;
}

.note-box__label {
  position: absolute;
  top: -10px;
  left: 1.5rem;
  background: var(--color-bg);
  padding: 2px 10px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-primary);
}

.note-box p {
  font-size: 0.95rem;
  color: #fff;
  line-height: 1.9;
  letter-spacing: 0.04em;
}

/* ===== Navy card ===== */
.navy-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  padding: 2.5rem 2rem;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 280px;
}

.navy-card__label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.navy-card h3 {
  font-size: 1.4rem;
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
}

.navy-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.9;
}

/* ===== Info table (key/value) ===== */
.info-table {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: 1.25rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.info-table th {
  width: 30%;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  font-family: var(--font-display);
}

.info-table td {
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.8;
}

@media (max-width: 768px) {
  .info-table,
  .info-table tbody,
  .info-table tr,
  .info-table th,
  .info-table td {
    display: block;
    width: 100%;
  }
  .info-table th {
    border-bottom: none;
    padding-bottom: 0.25rem;
  }
  .info-table td {
    padding-top: 0.25rem;
    padding-left: 0;
    margin-bottom: 0.5rem;
  }
}

/* ===== Tabs ===== */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  max-width: 820px;
  margin: 0 auto 2.5rem;
}

.tab {
  flex: 1;
  padding: 1rem 0.5rem;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-base), border-color var(--transition-base);
  text-align: center;
}

.tab:hover { color: #fff; }

.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab__sub {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  margin-top: 4px;
  font-weight: 500;
}

.tab-intros {
  position: relative;
  max-width: 820px;
  margin: 0 auto 2.5rem;
}

.tab-intro {
  display: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  padding: 1.5rem 1.75rem;
  border-radius: 4px;
}

.tab-intro.active { display: block; }

.tab-intro h3 {
  font-size: 1.05rem;
  color: #fff;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.tab-intro p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.9;
}

@media (max-width: 768px) {
  .tabs {
    flex-wrap: wrap;
  }
  .tab {
    flex-basis: 50%;
    border-bottom: 2px solid transparent;
  }
}

/* ===== Form ===== */
.form {
  max-width: 720px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-field {
  margin-bottom: 1.25rem;
}

.form-field__label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.form-required::after {
  content: '*';
  color: var(--color-primary);
  margin-left: 4px;
}

.form-field__input,
.form-field__select,
.form-field__textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: #fff;
  font-size: 0.95rem;
  border-radius: 4px;
  font-family: inherit;
  transition: border-color var(--transition-base), background var(--transition-base);
}

.form-field__input:focus,
.form-field__select:focus,
.form-field__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-surface-2);
}

.form-field__textarea {
  min-height: 160px;
  resize: vertical;
  line-height: 1.7;
}

.form-field__select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%238FA3B1' d='M6 8L2 4h8z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form__submit-wrap {
  text-align: center;
  margin-top: 2.5rem;
}

.form__submit-wrap .btn {
  min-width: 240px;
}

.form__note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 1.5rem;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ===== Before/After Slider ===== */
.ba-slider {
  position: relative;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 8px;
  user-select: none;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: ew-resize;
  touch-action: none;
}

.ba-slider .ba-slider__layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.ba-slider__layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  display: block;
}

.ba-slider__layer--after {
  clip-path: inset(0 0 0 50%);
}

.ba-slider__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--color-primary);
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 5;
}

.ba-slider__knob {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  background: var(--color-primary);
  border: 3px solid #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 6px 20px rgba(0,0,0,0.5);
  pointer-events: none;
  cursor: ew-resize;
}

.ba-slider__label {
  position: absolute;
  top: 1rem;
  font-family: var(--font-display);
  background: rgba(0,0,0,0.75);
  color: #fff;
  padding: 0.3rem 0.85rem;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  z-index: 4;
  border-radius: 2px;
  pointer-events: none;
}

.ba-slider__label--before { left: 1rem; }
.ba-slider__label--after { right: 1rem; }

.ba-slider__hint {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 1rem;
  letter-spacing: 0.05em;
}

/* ===== Icon list (services 2-col) ===== */
.icon-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 1000px;
  margin: 0 auto;
  list-style: none;
}

.icon-list__item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1rem 1.5rem;
  transition: background var(--transition-base), padding var(--transition-base);
}

.icon-list__item:hover {
  background: rgba(192, 57, 43, 0.06);
  padding-left: 1.75rem;
}

.icon-list__icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-list__text {
  font-size: 0.95rem;
  color: #fff;
  letter-spacing: 0.03em;
}

@media (max-width: 768px) {
  .icon-list { grid-template-columns: 1fr; }
  .feature-cards { grid-template-columns: 1fr; }
}

/* ===== Big external CTA ===== */
.big-link {
  text-align: center;
  margin-top: 3rem;
}

.big-link .btn {
  padding: 1.25rem 3rem;
  font-size: 1rem;
  letter-spacing: 0.06em;
}