.fv-video-text {
  position: absolute;
  inset: 0;
  width: 100vw;
  height: fit-content;
  translate: -50% -50%;
  left: 50%;
  top: 50%;
  z-index: 0;
}

.fv-video-text__item--text {
  font-size: 160px;
  line-height: 1;
  font-weight: 800;
  width: max-content;
  height: max-content;
  margin: 0;
  color: #3c4361;
  opacity: .3;
}

@media screen and (max-width: 768px) {
  .fv-video-text__item--text {
    font-size: 80px;
  }
}

@keyframes infinity-scroll-right {
  from {
    transform: translateX(0%);
  }

  to {
    transform: translateX(-100%);
  }
}

.fv-video-text__list--left {
  animation: infinity-scroll-right 250s infinite;
}

.fv-video-text__wrap {
  display: flex;
  overflow: hidden;
}

.fv-video-text__list {
  display: flex;
  list-style: none;
  padding: 0
}

.fv-video-title {
  position: absolute;
  top: 42%;
  left: 30%;
  translate: -50% -50%;
  z-index: 2;
  text-shadow: 0 3px 5px rgba(0, 0, 0, .3);
}

@media screen and (max-width: 768px) {
  .fv-video-title {
    left: 23%;
  }
}

.fv-video-title h2 {
  color: #fff;
  font-size: 6vw;
  font-weight: 700;
  line-height: 1;
}

.fv-video-title h3 {
  color: #fff;
  font-size: 2vw;
  line-height: 1;
}

.fv-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 12;
}

#fv-video .fv-video-inner {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  perspective-origin: 50% 50%;
  perspective: 100vw;
  overflow: visible;
}

#fv-video .fv-video-inner>div:has(.fv-video-main) {
  width: 100vw;
  aspect-ratio: 16 / 9;
  pointer-events: none;
  position: absolute;
  top: 0;
  left: 0;
}

/* 初期状態とアニメーションの紐付け (1サイクル 20s) */
#fv-video .fv-video-inner>div:has(.fv-video-main.fv-video1) {
  transform: rotateY(-16deg) rotateX(0deg) translateX(-15vw) translateZ(-60vw) translateY(-6vw);
  scale: 1; opacity: 1; filter: brightness(100%);
  animation: videoAnimation1 20s infinite;
}
#fv-video .fv-video-inner>div:has(.fv-video-main.fv-video2) {
  transform: rotateY(-16deg) rotateX(0deg) translateX(-22vw) translateZ(-50vw) translateY(2vw);
  scale: 0.9; opacity: 0; filter: brightness(100%);
  animation: videoAnimation2 20s infinite;
}
#fv-video .fv-video-inner>div:has(.fv-video-main.fv-video3) {
  transform: rotateY(-16deg) rotateX(0deg) translateX(4vw) translateZ(-108vw) translateY(-32vw);
  scale: 1; opacity: 0; filter: brightness(20%);
  animation: videoAnimation3 20s infinite;
}

#fv-video .fv-video video,
#fv-video .fv-video iframe {
  display: block;
  pointer-events: none; /* Vimeoのクリック反応（一時停止など）を防ぐ */
  width: 100%;
  height: 100%;
}

/* --- 5ステップ アニメーションキーフレーム (各ステップ20%) --- */
@keyframes videoAnimation1 {
  0%, 30% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(-15vw) translateZ(-60vw) translateY(-6vw);
    scale: 1;
    opacity: 1;
    filter: brightness(100%);
  }

  33%, 63% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(4vw) translateZ(-108vw) translateY(-32vw);
    scale: 1;
    opacity: 0;
    filter: brightness(20%);
  }

  66%, 96% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(-10vw) translateZ(-70vw) translateY(-12vw);
    scale: 1;
    opacity: 1;
    filter: brightness(50%);
  }

  100% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(-15vw) translateZ(-60vw) translateY(-6vw);
    scale: 1;
    opacity: 1;
    filter: brightness(100%);
  }
}

@keyframes videoAnimation2 {
  0%, 30% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(4vw) translateZ(-108vw) translateY(-32vw);
    scale: 1;
    opacity: 0;
    filter: brightness(20%);
  }

  33%, 63% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(-10vw) translateZ(-70vw) translateY(-12vw);
    scale: 1;
    opacity: 1;
    filter: brightness(50%);
  }

  66%, 96% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(-15vw) translateZ(-60vw) translateY(-6vw);
    scale: 1;
    opacity: 1;
    filter: brightness(100%);
  }

  100% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(4vw) translateZ(-108vw) translateY(-32vw);
    scale: 1;
    opacity: 0;
    filter: brightness(20%);
  }
}

@keyframes videoAnimation3 {
  0%, 30% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(-10vw) translateZ(-70vw) translateY(-12vw);
    scale: 1;
    opacity: 1;
    filter: brightness(50%);
  }

  33%, 63% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(-15vw) translateZ(-60vw) translateY(-6vw);
    scale: 1;
    opacity: 1;
    filter: brightness(100%);
  }

  66%, 96% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(4vw) translateZ(-108vw) translateY(-32vw);
    scale: 1;
    opacity: 0;
    filter: brightness(20%);
  }

  100% {
    transform: rotateY(-16deg) rotateX(0deg) translateX(-10vw) translateZ(-70vw) translateY(-12vw);
    scale: 1;
    opacity: 1;
    filter: brightness(50%);
  }
}

/* 鏡面反射部分 */
#fv-video .fv-video-inner>div:has(.fv-video-reflect) {
  scale: 1 -1;
  width: 100vw;
  aspect-ratio: 16 / 9;
  pointer-events: none;
  position: absolute;
  top: 0;
  left: 0;
}

#fv-video .fv-video-inner>div:has(.fv-video-reflect.fv-video1) {
  transform: rotateY(-16deg) rotateX(0deg) translateX(-15vw) translateZ(-60vw) translateY(calc(-100% + 6vw - 20px));
  scale: 1 -1; opacity: 1;
  animation: videoReflectAnimation1 20s infinite;
}
#fv-video .fv-video-inner>div:has(.fv-video-reflect.fv-video2) {
  transform: rotateY(-16deg) rotateX(0deg) translateX(-22vw) translateZ(-50vw) translateY(calc(-100% + 2vw - 20px));
  scale: 0.9 -0.9; opacity: 0;
  animation: videoReflectAnimation2 20s infinite;
}
#fv-video .fv-video-inner>div:has(.fv-video-reflect.fv-video3) {
  transform: rotateY(-16deg) rotateX(0deg) translateX(4vw) translateZ(-108vw) translateY(calc(-100% + 32vw - 20px));
  scale: 1 -1; opacity: 0;
  animation: videoReflectAnimation3 20s infinite;
}

#fv-video .fv-video-inner>div:has(.fv-video-reflect)::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, rgba(2, 8, 35, 0.2) -30%, rgba(2, 8, 35, 1) 50%);
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}

@keyframes videoReflectAnimation1 {
  0%, 30% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(-15vw)
      translateZ(-60vw)
      translateY(calc(-100% + 6vw - 20px));
    scale: 1 -1;
    opacity: 1;
  }

  33%, 63% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(4vw)
      translateZ(-108vw)
      translateY(calc(-100% + 32vw - 20px));
    scale: 1 -1;
    opacity: 0;
  }

  66%, 96% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(-10vw)
      translateZ(-70vw)
      translateY(calc(-100% + 12vw - 20px));
    scale: 1 -1;
    opacity: 1;
  }

  100% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(-15vw)
      translateZ(-60vw)
      translateY(calc(-100% + 6vw - 20px));
    scale: 1 -1;
    opacity: 1;
  }
}

@keyframes videoReflectAnimation2 {
  0%, 30% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(4vw)
      translateZ(-108vw)
      translateY(calc(-100% + 32vw - 20px));
    scale: 1 -1;
    opacity: 0;
  }

  33%, 63% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(-10vw)
      translateZ(-70vw)
      translateY(calc(-100% + 12vw - 20px));
    scale: 1 -1;
    opacity: 1;
  }

  66%, 96% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(-15vw)
      translateZ(-60vw)
      translateY(calc(-100% + 6vw - 20px));
    scale: 1 -1;
    opacity: 1;
  }

  100% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(4vw)
      translateZ(-108vw)
      translateY(calc(-100% + 32vw - 20px));
    scale: 1 -1;
    opacity: 0;
  }
}

@keyframes videoReflectAnimation3 {
  0%, 30% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(-10vw)
      translateZ(-70vw)
      translateY(calc(-100% + 12vw - 20px));
    scale: 1 -1;
    opacity: 1;
  }

  33%, 63% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(-15vw)
      translateZ(-60vw)
      translateY(calc(-100% + 6vw - 20px));
    scale: 1 -1;
    opacity: 1;
  }

  66%, 96% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(4vw)
      translateZ(-108vw)
      translateY(calc(-100% + 32vw - 20px));
    scale: 1 -1;
    opacity: 0;
  }

  100% {
    transform: rotateY(-16deg) rotateX(0deg)
      translateX(-10vw)
      translateZ(-70vw)
      translateY(calc(-100% + 12vw - 20px));
    scale: 1 -1;
    opacity: 1;
  }
}