@charset "UTF-8";

/* 矢印2（円広がる） */

.scrolldown {
  color: #fff;
  height: fit-content;
  inset: 0;
  letter-spacing: 0.05em;
  margin: auto 0 20px;
  position: absolute;
  text-align: center;
  z-index: 1;
}

.scrolldown span {
  cursor: pointer;
}

.scrolldown .arrow:before {
  content: '\f078';
  display: block;
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  letter-spacing: 0;
  position: relative;
}

.scrolldown .arrow:after {
  animation: circle 3s infinite;
  border-radius: 100%;
  box-shadow: 0 0 0 0 #555;
  box-sizing: border-box;
  content: '';
  height: 34px;
  left: 50%;
  opacity: 0;
  position: absolute;
  top: 26px;
  transform: translateX(-50%);
  width: 34px;
  z-index: -1;
}

@keyframes circle {
  0% {
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  60% {
    box-shadow: 0 0 0 20px rgba(255, 255, 255, 0.1);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}