.arshine2-pic-text {
  position: relative;
  text-align: center;
}

.arshine2-pic-text .background {
  width: 100%;
  aspect-ratio: 5;
  object-fit: cover;
  display: block; /* 消除图片底部默认边距 */
}

@media screen and (max-width:992px) {
  .arshine2-pic-text .background {
    aspect-ratio: 4;
  }
}

@media screen and (max-width:600px) {
  .arshine2-pic-text .background {
    aspect-ratio: 3;
  }
}