body {
  margin: 0;
  background: #222;
  color: #fff;
  font-family: sans-serif;
  overflow: hidden;
}

.slideshow-container {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
}

.swiper {
  width: 100vw;
  height: 80vh;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  border-radius: 0;
  background: #111;
  margin: 0;
}

.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 0;
}

.music-control {
  position: absolute;
  top: 24px;
  right: 36px;
  z-index: 20;
}

#mute-btn {
  background: #2a2a2a;
  color: #fff;
  border: none;
  border-radius: 18px;
  padding: 0.5rem 1.4rem;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.2s;
}
#mute-btn:hover {
  background: #666;
}

#enter-overlay {
  position:fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
}
#enter-overlay .overlay-bg {
  position: absolute;
  inset: 0;
  backdrop-filter: blur(18px) brightness(0.65);
  background: rgba(44,44,55,0.55);
}
#enter-overlay .overlay-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
}
#enter-btn {
  font-size: 2.2rem;
  font-weight: bold;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 0;
  margin: 0;
  text-shadow: 0 3px 16px #000, 0 1px 0 #333, 0 0px 4px #727272;
  letter-spacing: .04em;
  box-shadow: none;
  border-radius: 0;
  transition: text-shadow .18s;
}
#enter-btn:hover {
  color: #fff;
  text-shadow: 0 6px 32px #fff, 0 3px 18px #333, 0 1px 0 #222;
}