.bodyoverflow{
  overflow: hidden;
}
@media screen and (orientation: portrait) {
  /*竖屏 css*/
  html,
  body {
    padding: 0;
    margin: 0;
    font-size: 14px;
    box-sizing: border-box;
    background-color: #fff;
  }
  a {
    text-decoration: none;
    color: #fff;
  }
  .title {
    width: 100%;
    height: 6.25rem;
    font-size: 2rem;
    font-weight: 500;
    text-align: center;
    line-height: 6.25rem;
  }
  .introduce {
    padding: 0 1.875rem;
    line-height: 1.875rem;
    font-size: 1.125rem;
    text-align: center;
  }
  .video {
    position: relative;
    margin: 1.875rem 0 7.5rem 0;
    width: 100%;
    display: flex;
    font-size: 1.75rem;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
  }
  .video .video-box {
    margin-bottom: 1.875rem;
    width: 30rem;
    height: 18.75rem;
  }
  .video .video-text {
    position: absolute;
    bottom: 0%;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.25rem;
  }
  .bottom {
    position: fixed;
    bottom: 0;
    padding: 0 1.875rem;
    width: 100%;
    height: 6.25rem;
    color: #fff;
    display: flex;
    align-items: center;
    background-color: #000;
  }
  .bottom .bottom-left {
    width: 50%;
    height: 6.25rem;
    display: flex;
    justify-content: space-between;
    color: #9e7453;
    font-family: "SimSun";
    font-size: 3.25rem;
    font-weight: 600;
    line-height: 6.25rem;
  }
}
@media screen and (orientation: landscape) {

  /*横屏 css*/
  .slidewrap{
    transform-origin: center 10%;
    transform: scale(0.6);
  }
  html,
  body {
    height: 100%;
    padding: 0;
    margin: 0;
    font-size: 14px;
    box-sizing: border-box;
    background-color: #fff;
    overflow: hidden;
  }
  /*横屏 css*/
  .title {
    width: 100%;
    height: 6.25rem;
    font-size: 2rem;
    font-weight: 500;
    text-align: center;
    line-height: 6.25rem;
  }
  .flex {
    position: relative;
    padding: 0 4.375rem;
    display: flex;
    /* align-items: center; */
    justify-content: center;
    box-sizing: border-box;
    margin-bottom: 6.25rem;
    /* height: calc(100% - 6.25rem); */
  }
  .flex .introduce {
    font-size: 1.375rem;
    line-height: 1.875rem;
  }
  .flex .video {
    height: 18.75rem;
    margin-left: 3.125rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: -35px;
  }
  .flex .video .video-box {
    width: 18.75rem;
    height: 100%;
  }
  .flex .video .video-text {
    position: absolute;
    bottom: 0%;
    left: 7%;
    font-size: 1.25rem;
  }
}
@media screen and (max-width: 768px) {
  html,
  body {
    padding: 0;
    margin: 0;
    font-size: 12px;
    box-sizing: border-box;
    background-color: #fff;
  }
  .title {
    width: 100%;
    height: 3.25rem;
    font-size: 2rem;
    font-weight: 500;
    text-align: center;
    line-height: 3.25rem;
    background-color: #fff;
  }
  .flex {
    position: relative;
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
  }
  .flex .introduce {
    font-size: 1rem;
    line-height: 1.875rem;
  }
  .flex .video {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .flex .video .video-box {
    width: 18.75rem;
    height: 18.75rem;
  }
  .flex .video .video-text {
    position: absolute;
    bottom: -5%;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.25rem;
  }
}