.party-thumbnails {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  padding: 0 5%;
  margin-top: 30px;
  margin-bottom: 40px;
  }
  .party-thumbnails a {
  display: block;
  width: calc(30% - 14px);
  text-decoration: none;
  border-radius: 3px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .party-thumbnails a:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
  }
  .party-thumbnails a img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  border-radius: 3px;
  }
  .planbox {
  width: 90%;
  margin: 40px auto;
  padding: 25px 30px;
  border-radius: 3px;
  }
  .planbox .titleH3 {
  font-family: 'Commercial Script', cursive;
  font-size: 2.8em;
  color: #42ACD1;
  margin-bottom: 8px;
  line-height: 1.1;
  text-align: center;
  }
  .planbox .titleH3 .jap.noto {
  font-family: "noto-sans", sans-serif;
  font-size: 0.3em;
  font-weight: 400;
  color: #42ACD1;
  display: block;
  margin-top: 5px;
  letter-spacing: 0.25em;
  }
  .planbox .detail {
  font-size: 0.9em;
  line-height: 1.9;
  letter-spacing: 0.1em;
  color: #004862;
  margin-top: 20px;
  }
  .planbox .detail img {
  max-width: 100%;
  height: auto;
  margin: 20px 0;
  border-radius: 3px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  }
  .party-wave-divider {
  display: block;
  width: 80%;
  height: auto;
  margin: 15px auto 30px auto;
  }
  .party-wave-divider path {
  stroke: #42ACD1;
  stroke-width: 0.5;
  fill: none;
  }
  .party-section .anim-on-scroll.animate__fadeInUp {
  --animate-duration: 2.5s;
  }
  .party-section .section-subtitle-large.animate__fadeInUp {
  --animate-delay: 0.2s;
  }
  .party-section .description-left.animate__fadeInUp {
  --animate-delay: 0.4s;
  }
  .party-section .section-title.center.animate__fadeInUp,
  .party-section .party-thumbnails.animate__fadeInUp {
  --animate-delay: 0.6s;
  }
  .party-section .party-wave-divider.animate__fadeInUp,
  .party-section .planbox.animate__fadeInUp,
  .party-section .reservation-button.animate__fadeInUp {
  --animate-delay: 0.8s;
  }