@media (min-width: 768px) {
    .news-input{
        width: 50%;
    }
}


@font-face {
    font-family: "SourceHanSansCN-Bold";
    src: url('../font/SourceHanSansCN-Bold.otf');
  }
  
  @font-face {
    font-family: "SourceHanSansCN-Medium";
    src: url('../font/SourceHanSansCN-Medium.otf');
  }
  
  @font-face {
    font-family: "SourceHanSansCN-Normal";
    src: url('../font/SourceHanSansCN-Normal.otf');
  }


  body{
    font-family: 'SourceHanSansCN-Normal',sans-serif;
  
  }


body::before{
    display: block;
    content: '';
    height: 56px;
}

.daohang a{
    text-decoration: none;
    /* text-decoration-color: grey; */
  }

.daohang>ul{
    font-size: 6px;
    color:grey !important;
}

.nvbgcolor{
    background: black;
    
}

body{
    background-color: #000;
}
/* 常规字体 */
.custom-font {
    font-family: 'SourceHanSansCN-Normal', sans-serif;
    font-size: 10px;
  }

 /* 添加选中选项的下划线样式 */
 .nav-link.underline {
    position: relative;
    text-decoration: none;
    color: #000;
  }

  .nav-link.underline::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: #ffffff;
    bottom: -4px;
    left: 0;
    opacity: 0;
    transition: opacity 0.3s;
  }

  .nav-link.underline.active::after {
    opacity: 1;
  }

  .carousel-item-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
  }

  .custom1-h1 {
    font-size: 1em;
  }

  .double-h1 {
    font-size: 2em;
  }

  .linkbeian{
    text-decoration: none;
    color: gray;
    font-size: 12px;
  }

  .case-hr-div{

    display: flex;
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 2px;
    justify-content: center;
  }

  .case-hr{
    /* display: flex;
    position: relative;
    overflow: hidden; */
    background-color: #343434;
    width: 70%;
    height: 2px;
    justify-content: center;
    
  }

  .video-div{
    display: flex;
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 450px;
    justify-content: center;
  }

  .video-div>video{
    display: flex;
    position: relative;
    overflow: hidden;
    width: 800px;
    height: 450px;
    box-sizing: border-box;
    align-items: center;
  }