.presentation-page { margin: 0 auto; width: 100%; }
.presentation-header { padding: 1rem 2rem; display: flex; justify-content: space-between; font-size: 2rem; line-height: 1; }
.presentation-page { min-height: 100svh; background: var(--presentation-background, var(--contact-background)); }
.book-details { background: #000; color: var(--pink); padding: 60px 0; font-size: clamp(24px, 1.875vw, 36px); line-height: 1.166666667; }
.book-details-content { width: 58.333333333%; max-width: 1120px; margin: 0 auto; }
.book-detail-row { padding: 20px 0; border-bottom: 1px solid var(--pink); }
.book-detail-row:first-child { padding-top: 0; }
.book-detail-row:last-child { border-bottom: 0; padding-bottom: 0; }
.book-detail-row dt, .book-detail-row dd { margin: 0; font-weight: 400; }
.presentation-slider { position: relative; width: 100%; }
.slider-viewport { position: relative; overflow: hidden; aspect-ratio: 16 / 9; touch-action: pan-y; outline: none; }
.slider-viewport:focus-visible { outline: 2px solid #fff; outline-offset: -2px; }
.slider-track { display: flex; height: 100%; width: 100%; will-change: transform; }
.slider-frame { display: block; flex: 0 0 100%; width: 100%; height: 100%; }
.slider-frame img { width: 100%; height: 100%; object-fit: contain; user-select: none; -webkit-user-drag: none; }
.slider-counter { position: absolute; right: 16px; bottom: 16px; z-index: 2; color: white; font-size: 16px; line-height: 1; pointer-events: none; }
.slider-pagination { display: none; height: 23.54px; justify-content: center; align-items: center; background: var(--pagination-background, #272727); }
.slider-dot-window { width: min(45px,calc(var(--slide-count) * 9px)); height: 23.54px; overflow: hidden; }
.slider-dot-track { display: flex; height: 23.54px; transition: transform 300ms ease; }
.slider-dot { flex: 0 0 9px; width: 9px; height: 23.54px; padding: 0; margin: 0; border: 0; background: transparent; cursor: pointer; display: grid; place-items: center; }
.slider-dot span { width: 6px; height: 6px; background: rgba(255,255,255,.4); border-radius: 50%; transform: scale(var(--dot-scale,1)); transition: transform 300ms ease,background-color 150ms; }
.slider-dot[aria-current="true"] span { background: rgba(255,255,255,.6); }
.slider-dot:focus-visible { outline: 1px solid white; outline-offset: -1px; }
@media (width < 770px) {
  .book-details { padding: 13.953488372vw 0; font-size: 4.186046512vw; line-height: 1.333333333; }
  .book-details-content { width: auto; max-width: none; margin: 0 8.372093023vw; }
  .book-detail-row { padding: 4.651162791vw 0; }
  .presentation-header { padding: .6rem 1.26rem .84rem; font-size: 2.52rem; }
  .slider-viewport { cursor: auto !important; }
  .slider-frame img { object-fit: cover; }
  .slider-counter { display: none; }
  .slider-pagination:not([hidden]) { display: flex; }
}
@media (prefers-reduced-motion: reduce) { .slider-track,.slider-dot-track,.slider-dot span { transition: none !important; } }

.presentation-slider[data-variant="mobile"] { display: none; }
@media (width < 770px) {
  .presentation-slider[data-variant="desktop"] { display: none; }
  .presentation-slider[data-variant="mobile"] { display: block; }
  .presentation-slider[data-variant="mobile"] .slider-viewport { aspect-ratio: var(--first-mobile-aspect,2 / 3); }
}

.slider-hint { display: none; position: absolute; top: 50%; transform: translateY(-50%); width: 108px; height: 108px; padding: 0; border: 0; background: transparent; cursor: pointer; z-index: 3; }
.slider-hint[hidden] { display: none; }
.slider-hint-back { left: 0; }
.slider-hint-next { right: 0; }
.slider-hint:focus-visible { outline: 2px solid white; outline-offset: -4px; border-radius: 8px; }
@media (width < 770px) {
  .slider-hint-back { display: none; }
  .slider-hint-next:not([hidden]) { display: block; width: 128px; height: 128px; }
  .slider-hint img { width: 128px; height: 128px; }
}
.other-books { container-type: inline-size; background: #272727; color: var(--pink); text-align: center; padding: 5.20833vw 0 7.03vw; }
.other-books h2 { margin: 0 0 2.60417cqw; font-size: 5cqw; font-weight: 400; line-height: 1; }
.other-book { margin: 0 auto; }
.other-book + .other-book { margin-top: 3.9cqw; }
.other-book-image { width: 47.5%; aspect-ratio: var(--desktop-aspect); margin: 0 auto 1.3cqw; }
.other-book-image img { width: 100%; height: 100%; object-fit: contain; }
.other-book-wind .other-book-image { width: 35.6%; margin-bottom: 1.3cqw; }
.other-book-title { font-size: 5cqw; line-height: .8; font-weight: 400; margin: 0 auto; width: 70%; }
.other-book-subtitle { font-size: 1.71875cqw; line-height: 1.15; margin: var(--book-title-gap) auto 0; width: 70%; }
.other-book .book-button { margin-top: var(--book-button-gap); }
@media (width < 770px) {
  .other-books { padding: 23.2558vw 0 27.9vw; }
  .other-books h2 { font-size: 18.60465cqw; line-height: .75; width: 90%; margin: 0 auto 18.6cqw; }
  .other-book + .other-book { margin-top: 17cqw; }
  .other-book-image { width: 48%; aspect-ratio: var(--mobile-aspect); margin-bottom: var(--book-title-gap); }
  .other-book-wind .other-book-image { width: 84%; margin-bottom: var(--book-title-gap); }
  .other-book-title { font-size: 11.4651145cqw; line-height: .8; width: 92%; }
  .other-book-subtitle { font-size: 5.58cqw; line-height: 1.15; margin-top: var(--book-title-gap); width: 64%; }
  .other-book .book-button { margin-top: var(--book-button-gap); }
}

/* Reserve bilingual caption height as one unit, preserving both visible gaps. */
.other-book-copy > .copy { align-self: start; }