/*banner  */
  #banner {
    position: absolute;
    width: 100%;
    top:0;
    z-index:998;
  }
  .bd {
    position:absolute;
    width:100%;
  }
  body {
    background-color:#141414 ;
  }
  /* 关于我们，企业历程 */
  #about {
    position: relative;
    width: 100%;
    margin: 0 auto 6rem auto;
    padding:0;
  }
  
  #about .video_grounp {
    display:flex;
    width: 100%;
    height: 18rem;
    margin-bottom: 1.5rem;
  }
  
  #about .video_grounp .video_box {
    position: relative;
    flex: 60%;
    height: 18rem;
    margin-right: 1.5rem;
    background-color: #141414;
    border-radius:0 0  6rem 0; 
  }
  
  /* #about .video_grounp .video_box::after,
  #about .video_grounp .history::after,
  #about .about_us .consultation::after {
    position: absolute;
    right: -1.5em;
    bottom: -1.5rem;
    content:'';
    border-top: 1.5rem solid transparent;
    border-bottom: 1.5rem solid transparent;
    border-left: 1.5rem solid transparent;
    border-right: 1.5rem solid #fff;
    transform:rotate(223deg);
  } */
  
  #about .video_grounp .history {
    position: relative;
    flex:20%;
    /* background-color: #7993ad; */
    border-radius:0 0  6rem 0;
    margin-right:1.5rem;
  }
  #about .video_grounp .describe {
    flex:20%!important;
    overflow:hidden;
  }
  .video_img {
    position: relative;
    width: 100%;
    height: 18rem;
    border-radius:0 0  6rem 0;
  }

  .triangle_about {
    position: absolute;
    width:3rem;
    height:3rem;
    bottom:0rem;
    right:0rem;
  }

.triangle_about img{
    width:100%;
    height:100%;
  
  }

  .triangle_about_left {
    position: absolute;
    width:3rem;
    height:3rem;
    top:0rem;
    left:0rem;
  }

.triangle_about_left img{
    width:100%;
    height:100%;
  
  }
  
  .video_img  .play {
    position: absolute;
    width: 5rem;
    height: 5rem;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
    background-size: 100% 100%
  }
  
  .history_link {
    display:inline-block;
    width: 100%;
    height: 100%;       
  }
  
  .history_link  img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius:0 0  6rem 0;
  }
  
  .honor .history_link img{
    border-radius:6rem 0 0 0;
  }
  
  
  
  #about .about_us {
    width: 100%;
    height: 18rem;
    display:flex;
    margin-bottom: 1.5rem;
  }
  
 

  .describe p,
  .title_lonsdor p {
    color: #fff;
    font-family:'Arial';
    font-size: 1rem;
  }
  
  .title_lonsdor p {
    font-size: 2rem;
  }
  
  .title_lonsdor p img {
    width:60%;
    hwight:auto;
  }
  #about .about_us .consultation {
    position: relative;
    background-color: #9fb6c9;
    flex: 20%;
    margin-right: 1.5rem;
    border-radius:0 0 6rem 0;
  }
  
  #about .about_us .honor {
    position: relative;
    position: relative;
    flex: 60%;
    border-radius:6rem 0 0 0;
    margin-right: 1.5rem;
  }
  /* #about .about_us .honor::after {
    position: absolute;
    top: -1.5rem;
    left: -1.5rem;
    content:'';
    border-top: 1.5rem solid transparent;
    border-bottom: 1.5rem solid transparent;
    border-left: 1.5rem solid transparent;
    border-right: 1.5rem solid #fff;
    transform:rotate(45deg);
  } */
  
  #about .about_us .title_lonsdor {
    flex:20%;
    display: flex;  
    flex-direction: column;
    justify-content: flex-end;
  }
  
  
  
  /* 视频播放相关 */
  #videoContainer {  
      display: none;  
      position: fixed; /* 定位到整个视口 */  
      top: 0;  
      left: 0;  
      width: 100%;  
      height: 100%;  
      z-index: 1000; /* 确保视频层在顶部 */  
      overflow: hidden;  
      background-color: black;
  }  
  
  video {  
      width: 100%;  
      height: 100%;  
  }  
  /* 退出全屏 */
  #exitFullscreenBtn {  
      display: block; 
      position: fixed;  
      top: 1.25rem;  
      right: 2.5rem;  
      z-index: 1001;  
      cursor: pointer;  
      color:#fff;
      font-size:1.25rem;
  }