/* 試し読み：ページめくり
----------------------------------------------- */
.trial-gallery{
  width: 100%;
  background: #e8f4fc;
  padding: 4vw 8px 6vw;
  box-sizing: border-box;
}
.trial-gallery > p{
  background: transparent;
  color: #1d4e89;
  font-weight: 700;
  margin-bottom: 3vw;
}

.trial-flip{
  position: relative;
  width: 100%;
  margin: 0 auto;
}
.trial-flip__frame{
  position: relative;
}
.trial-flip__wrapper{
  position: relative;
  width: 100%;
  aspect-ratio: 1056 / 1528;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(2, 18, 48, 0.14);
}
.trial-flip__stage{
  position: absolute;
  inset: 0;
}
/* page-flip が .stf__parent を position:relative と min-height で最小サイズに縮める。
   後から注入されるスタイルより優先して、枠いっぱいに広げる。 */
.trial-flip__wrapper > .trial-flip__stage.stf__parent{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-width: 0 !important;
  min-height: 0 !important;
}
.trial-flip__slide{ display: none; }
.trial-flip__wrapper:not(.is-ready) .trial-flip__slide:first-child{
  display: block;
  height: 100%;
}
.trial-flip__wrapper:not(.is-ready) .trial-flip__slide:first-child img,
.trial-flip__stage .trial-flip__page,
.trial-flip__stage .trial-flip__page img{
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
  object-position: center center;
  display: block;
}
.trial-flip__wrapper.is-fallback{
  aspect-ratio: auto;
  overflow: visible;
  background: transparent;
  box-shadow: none;
}
.trial-flip__wrapper.is-fallback .trial-flip__slide{
  display: block;
  margin-bottom: 4vw;
}
.trial-flip__wrapper.is-fallback .trial-flip__slide img{
  width: 100%;
  height: auto;
}

.trial-flip__nav{
  position: absolute;
  top: 50%;
  z-index: 5;
  width: 42px;
  height: 42px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transform: translateY(-50%);
  box-shadow: 0 6px 16px rgba(2, 18, 48, 0.16);
}
.trial-flip__nav--prev{
  left: -6px;
  background: #d7e8f8;
  color: #1d4e89;
}
.trial-flip__nav--next{
  right: -6px;
  background: #1d4e89;
  color: #fff;
}
.trial-flip__nav:disabled{
  opacity: 0.28;
  cursor: default;
  box-shadow: none;
}
.trial-flip__nav::before{
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  margin: 0 auto;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transition: none;
}
.trial-flip__nav--prev::before{
  transform: translateX(2px) rotate(-135deg);
}
.trial-flip__nav--next::before{
  transform: translateX(-2px) rotate(45deg);
}
.trial-flip__nav:not(:disabled):hover{
  transform: translateY(-50%) scale(1.08);
}

.trial-gallery .trial-flip__pager{
  position: absolute;
  left: 50%;
  bottom: 12px;
  z-index: 6;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  width: fit-content;
  margin: 0;
  padding: 4px 18px 6px;
  border-radius: 999px;
  background: #fff;
  color: #7eb0d4;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.04em;
  pointer-events: none;
  transform: translateX(-50%);
  box-shadow: 0 4px 14px rgba(2, 18, 48, 0.12);
}
.trial-flip__current{
  color: #021230;
  font-weight: 700;
  font-size: 20px;
}
.trial-flip__sep{ font-weight: 500; }

.trial-flip__nav:focus-visible,
.trial-flip__zoom:focus-visible{
  outline: 2px solid #021230;
  outline-offset: 3px;
}

.trial-flip__zoom{
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 5px;
  width: fit-content;
  margin: 0 auto 10px;
  padding: 8px 16px 8px 12px;
  border: 0;
  border-radius: 999px;
  background: #1d4e89;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.06em;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(2, 18, 48, 0.22);
  -webkit-tap-highlight-color: transparent;
}
.trial-flip__zoom svg{
  display: block;
  flex: 0 0 auto;
}
.trial-flip__zoom:hover{
  background: #163e6e;
}

/* 拡大閲覧：ページめくりと分離して、文字を大きく読む */
.trial-zoom{
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding:
    env(safe-area-inset-top)
    env(safe-area-inset-right)
    env(safe-area-inset-bottom)
    env(safe-area-inset-left);
  background: #021230;
  color: #fff;
  overscroll-behavior: none;
}
.trial-zoom[hidden]{
  display: none !important;
}
.trial-zoom__bar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex: 0 0 auto;
  padding: 10px 12px 8px;
}
.trial-zoom__close,
.trial-zoom__tool{
  margin: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.trial-zoom__close{
  padding: 8px 14px;
  font-size: 14px;
}
.trial-zoom__tools{
  display: flex;
  gap: 6px;
}
.trial-zoom__tool{
  min-width: 40px;
  padding: 8px 10px;
  font-size: 16px;
  line-height: 1;
}
.trial-zoom__tool[data-act="fit"]{
  font-size: 13px;
  letter-spacing: 0.04em;
}
.trial-zoom__close:hover,
.trial-zoom__tool:hover,
.trial-zoom__nav:hover{
  background: rgba(255, 255, 255, 0.26);
}
.trial-zoom__count{
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.trial-zoom__body{
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  align-items: stretch;
}
.trial-zoom__viewport{
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  touch-action: none;
  cursor: grab;
}
.trial-zoom__viewport.is-grabbing{
  cursor: grabbing;
}
.trial-zoom__img{
  position: absolute;
  left: 50%;
  top: 50%;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%) scale(1);
  transform-origin: center center;
  user-select: none;
  -webkit-user-drag: none;
  will-change: transform;
}
.trial-zoom__nav{
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 40px;
  height: 64px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-50%);
  color: #fff;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.trial-zoom__nav::before{
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  margin: 0 auto;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
}
.trial-zoom__nav--prev{ left: 6px; }
.trial-zoom__nav--next{ right: 6px; }
.trial-zoom__nav--prev::before{
  transform: translateX(2px) rotate(-135deg);
}
.trial-zoom__nav--next::before{
  transform: translateX(-2px) rotate(45deg);
}
.trial-zoom__nav:disabled{
  opacity: 0.28;
  cursor: default;
}
.trial-zoom__hint{
  flex: 0 0 auto;
  margin: 0;
  padding: 6px 16px 12px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
}
.trial-zoom__close:focus-visible,
.trial-zoom__tool:focus-visible,
.trial-zoom__nav:focus-visible{
  outline: 2px solid #fff;
  outline-offset: 2px;
}

@media screen and (min-width: 769px) {
  .trial-gallery{
    width: min(86vw, 820px);
    margin-left: auto;
    margin-right: auto;
    padding: 28px 24px 40px;
  }
  .trial-gallery > p{
    margin-bottom: 18px;
    font-size: 16px;
  }
  .trial-flip{ width: 100%; }
  .trial-flip__nav{
    width: 50px;
    height: 50px;
  }
  .trial-flip__nav--prev{ left: -12px; }
  .trial-flip__nav--next{ right: -12px; }
  .trial-gallery .trial-flip__pager{ bottom: 16px; }
  .trial-flip__current{ font-size: 22px; }
}