.introjs-tooltip {
  background-color: rgba(44, 44, 44, 0.9);
  color: #d4af37;
  border-radius: var(--fjm-border-radius);
  padding: 15px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  max-width: 400px;
  border: 1px solid #d4af37;
  backdrop-filter: blur(5px);
  animation: fadeIn 0s ease-in-out; /* 即時に切り替え */
}

.introjs-tooltiptext {
  color: #d4af37;
  text-shadow: 0 0 1px #d4af37, 0 0 2px #d4af37, 0 0 4px #ff6347, 0 0 6px #ff6347; /* ネオンの幅を狭くする */
}

.introjs-button, .introjs-tooltip .introjs-button {
  background-color: #4b2e2e;
  border: 1px solid #d4af37;
  border-radius: var(--fjm-button-border-radius);
  color: #fff;
  padding: 10px 15px;
  text-transform: uppercase;
  transition: background-color 0s ease-in-out, transform 0s ease-in-out; /* 即時に切り替え */
  cursor: pointer;
  font-size: 12px;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.introjs-button:hover, .introjs-tooltip .introjs-button:hover {
  background-color: #3a2323;
  transform: scale(1.05);
}

.introjs-overlay {
  background: rgba(0, 0, 0, 0.7);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  animation: fadeInOverlay 0s ease-in-out; /* 即時に切り替え */
}

.introjs-title {
  font-size: 18px;
  font-weight: bold;
  background: linear-gradient(15deg, #d4af37, #ff6347);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 1px rgba(212, 175, 55, 0.75), 0 0 2px rgba(255, 99, 71, 0.75);
  display: flex;
  align-items: center;
}

@keyframes fadeIn {
  0% {
    opacity: 0;
    transform: translateY(-10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInOverlay {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}