.logo-mask-fv {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 680px;
  overflow: hidden;
  background: #f7f5f0;
}

.logo-mask-fv__slides,
.logo-mask-fv__slide {
  position: absolute;
  inset: 0;
}

.logo-mask-fv__slide {
  opacity: 0;
  z-index: 1;
  overflow: hidden;
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: opacity, mask-size, -webkit-mask-size;
}

.logo-mask-fv__slide.is-current {
  opacity: 1;
  z-index: 2;
}

.logo-mask-fv__slide.is-next {
  opacity: 1;
  z-index: 3;

  -webkit-mask-image: url("https://takatsuki-yamazaki-clinic.jp/wp-content/uploads/2026/06/logo_mask.svg");
  mask-image: url("https://takatsuki-yamazaki-clinic.jp/wp-content/uploads/2026/06/logo_mask.svg");

  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;

  -webkit-mask-position: center center;
  mask-position: center center;

  -webkit-mask-size: 0vmax auto;
  mask-size: 0vmax auto;
}

.logo-mask-fv__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  transform-origin: center center;
  will-change: transform;
  backface-visibility: hidden;
}

.logo-mask-fv__overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.38) 0%,
    rgba(0, 0, 0, 0.18) 42%,
    rgba(0, 0, 0, 0.08) 100%
  );
  pointer-events: none;
}

@media (max-width: 767px) {
  .logo-mask-fv {
    min-height: 560px;
  }

  .logo-mask-fv__overlay {
    background: linear-gradient(
      180deg,
      rgba(0, 0, 0, 0.08) 0%,
      rgba(0, 0, 0, 0.35) 100%
    );
  }
}