.ear-guide-banner {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;
    line-height: 0;
  }

  .ear-guide-banner picture,
  .ear-guide-banner img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0;
    padding: 0;
  }

  @media (max-width: 768px) {
    .ear-guide-banner img {
      width: 100%;
      height: auto;
    }
  }