/* メインコンテンツ */
main {
  padding-top: 80px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

h1 {
  font-size: 3rem;
  letter-spacing: 0.1em;
  margin-bottom: 3rem;
  font-weight: 600;
  font-family: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
}

/* Swiperカルーセル */
.swiper {
  width: 100%;
  max-width: 1200px;
  padding: 50px 0;
}

.swiper-slide {
  width: 560px;
  height: 315px;
  border-radius: 12px;
  overflow: hidden;
  filter: brightness(0.6);
  transition: filter 0.3s;
}

.swiper-slide-active {
  filter: brightness(1);
}

.swiper-slide iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.swiper-button-next,
.swiper-button-prev {
  color: #111111;
}

.swiper-pagination-bullet {
  background: #111111;
}

.swiper-pagination-bullet-active {
  background: #111111;
}

/* スマホ対応 */
@media (max-width: 768px) {
  h1 {
    font-size: 1.5rem;
  }

  .swiper-slide {
    width: 320px;
    height: 180px;
  }
}