.about-li-icon {
  display: none;
}
.about-li-title .en {
  display: none;
}
@media (min-width: 1200px) {
  .about-nav {
    display: flex;
    justify-content: center;
    padding: 2vw 0;
  }
  .about-nav ul li {
    width: auto;
    padding: 0 2vw;
  }

  .about-nav ul li a {
    display: block;
    position: relative;
    width: 8vw;
    height: 8vw;
    padding: 0.5vw;
    background: none;
    border: 1px dashed #000;
    border-radius: 50%;
    transition: 0.6s;
  }
  .about-nav ul li a i {
    display: block;
    position: absolute;
    left: 50%;
    top: 0;
    padding: 1vw 0;
  }
  .about-nav ul li a i img {
    height: 2.8vw;
  }

  .about-li-circle {
    position: relative;
    width: 7vw;
    height: 7vw;
    padding: 0.6vw 0 0;
    background: #000;
    border-radius: 50%;
  }

  .about-li-icon {
    display: block;
    padding: 0.8vw 0 0.2vw;
    text-align: center;
  }

  .about-li-icon img {
    width: 2.2vw;
  }

  .about-li-title {
    color: #fff;
    text-align: center;
  }

  .about-li-title .ch {
    font-size: 0.9vw;
    line-height: 1.2vw;
  }

  .about-li-title .en {
    display: block;
    font-size: 12px;
    line-height: 16px;
    text-transform: uppercase;
  }
  .about-nav ul li a:hover {
    background: none;
    border-color: #d7000f;
    transform: rotate(360deg);
  }
  .about-nav ul li a:hover .about-li-circle {
    background: #d7000f;
  }
  .about-nav ul li.active a {
    background: none;
    border-color: #d7000f;
    transform: rotate(360deg);
  }
  .about-nav ul li.active a .about-li-circle {
    background: #d7000f;
  }
}