.video-viewer {
  font-family: Arial, sans-serif;
}

#video-container {
  width: 100%;
  border: 0;
  margin: 20px auto;
  position: relative;
  overflow: hidden;
  padding-top: calc(100% / 3); /* 高宽比 1:3 */
  height: 0; /* 实际高度由 padding-top 控制 */
}

#video-container > video {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#video-container video.loaded {
  display: block;
}

.video-viewer button {
  margin: 5px;
  padding: 8px 12px;
  font-size: 14px;
  border: none;
  background-color: #007bff;
  color: white;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.video-viewer button:hover {
  background-color: #0056b3;
}

.video-viewer #button-block {
  text-align: center;
  margin: 10px auto;
}

.swiper {
  width: 100%;
  max-width: 100%;
  height: 200px;
  background: #e8e8f8;
  margin: 0 auto;
  position: relative;
  padding: 0 50px !important;
}

.swiper-wrapper {
  display: flex;
}

.swiper-slide {
  flex: 0 0 calc((100% - 40px) / 5);
  display: flex;
  justify-content: center;
  align-items: center;
}

.swiper-slide img {
  width: 150px;
  height: auto;
  border-radius: 8px;
  cursor: pointer;
  object-fit: cover;
  box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.swiper-slide img:hover {
  transform: scale(1.1);
}