/* ═══════════════════════════════════════════════════
   HERO SECTION
═══════════════════════════════════════════════════ */
.hero {
  position: relative;
  height: 100svh;
  min-height: 680px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark);
}

/* Background */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  scale: 1.08;         /* Ken Burns 開始位置 (GSAPで 1 に戻す) */
  transform-origin: center center;
  will-change: transform;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(8, 12, 22, 0.82) 0%,
    rgba(8, 12, 22, 0.55) 55%,
    rgba(8, 12, 22, 0.35) 100%
  );
}
.hero__overlay-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 60%,
    rgba(8, 12, 22, 0.8) 100%
  );
}

/* Content */
.hero__content {
  position: relative;
  z-index: 1;
  padding-top: var(--nav-h);
  width: 100%;
}

/* Eyebrow */
.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
.hero__eyebrow-line {
  display: block;
  height: 1px;
  width: 48px;
  background: var(--c-primary);
  transform: scaleX(0);
  transform-origin: left;
}
.hero__eyebrow-text {
  font-family: var(--font-en);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-primary-light);
  opacity: 0;
}

/* Title */
.hero__title {
  font-family: var(--font-serif);
  font-size: var(--text-7xl);
  font-weight: 900;
  color: var(--c-text-white);
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin-bottom: 2rem;
  overflow: visible;
}
.hero__title-line {
  display: block;
  overflow: hidden;
}
.hero__title-inner {
  display: block;
  transform: translateY(110%);
  will-change: transform;
}

/* Sub */
.hero__sub {
  font-family: var(--font-sans);
  font-size: var(--text-md);
  font-weight: 300;
  color: var(--c-text-white-sub);
  max-width: 440px;
  line-height: 1.9;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateY(24px);
  will-change: transform, opacity;
}

/* Actions */
.hero__actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(24px);
  will-change: transform, opacity;
}
.hero__cta-btn { font-size: var(--text-md); }

.hero__sub-link {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--c-text-white-sub);
  transition: color var(--transition-fast);
}
.hero__sub-link:hover { color: var(--c-text-white); }
.hero__sub-link-line {
  display: block;
  height: 1px;
  background: currentColor;
  transform: scaleX(0.4);
  transform-origin: left;
  transition: transform var(--transition);
}
.hero__sub-link:hover .hero__sub-link-line { transform: scaleX(1); }

/* Side label (縦書き) */
.hero__side-label {
  position: absolute;
  right: 2.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  display: none;
}
@media (min-width: 1100px) { .hero__side-label { display: block; } }
.hero__side-text {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--c-text-white-muted);
  text-transform: uppercase;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  z-index: 1;
  opacity: 0;
  will-change: opacity;
}
.hero__scroll-inner {
  width: 1px;
  height: 56px;
  overflow: hidden;
  position: relative;
}
.hero__scroll-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, var(--c-primary), transparent);
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0%   { transform: scaleY(0) translateY(0); transform-origin: top; }
  50%  { transform: scaleY(1) translateY(0); transform-origin: top; }
  100% { transform: scaleY(0) translateY(100%); transform-origin: top; }
}
.hero__scroll-text {
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-text-white-muted);
}

/* Badges */
.hero__badges {
  position: absolute;
  bottom: 3rem;
  right: clamp(1.5rem, 5vw, 4rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  z-index: 1;
  display: none;
}
@media (min-width: 768px) { .hero__badges { display: flex; } }
.hero__badge {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  text-align: right;
}
.hero__badge-num {
  font-family: var(--font-en);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--c-text-white);
  line-height: 1;
  white-space: nowrap;
}
.hero__badge-label {
  font-size: var(--text-xs);
  color: var(--c-text-white-muted);
  letter-spacing: 0.05em;
}

/* ── Mobile ───────────────────────────────────────── */
@media (max-width: 767px) {
  .hero__title { font-size: var(--text-6xl); }
  .hero__actions { gap: 1.2rem; }
  .hero__scroll { bottom: 4rem; }
}