.mask-path {
  stroke-width: 8;
  ::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    stroke-dasharray: 660;
    stroke-dashoffset: 0;
    stroke: #d11818;
    stroke-width: 8;
    fill: none;
  }
}
@keyframes glow {
  0% {
    stroke-dashoffset: 0;
  }
  100% {
    stroke-dashoffset: -650;
  }
}

@keyframes highlight-flow {
  0% {
    stroke-dashoffset: 50;
  }
  100% {
    stroke-dashoffset: -600;
  } /* 15+300-30=285 */
}
.animate-glow {
  animation: glow 16s infinite linear;
}
.animate-highlight {
  animation: highlight-flow 16s linear infinite;
}

.paused {
  .animate-glow,
  .animate-highlight {
    animation-play-state: paused;
  }
}

//////////////////////////////////////////////////////////////////////////
.perspective-1000 {
  perspective: 1000px;
  -webkit-perspective: 1000px;
  overflow: hidden;
  min-height: 680px;
  display: flex;
  align-items: center;
  will-change: transform;
}
.transform-style-3d {
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transition-duration: 0.4s;
  will-change: transform;
}
.backface-hidden {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden; /* Chrome、Safari */
  -moz-backface-visibility: hidden; /* Firefox */
  -ms-backface-visibility: hidden; /* Internet Explorer */
}

.rotate-y-180 {
  transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
}
.rotate-y-0 {
  transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
}
