@media (min-width: 768px) and (max-width: 991px) {
  /* 样式规则应用于宽度在768px到991px之间的屏幕 */
  .head {
    padding-top: 70px;
  }
  .head .logo {
    left: 30px;
    top: 20px;
    width: 27vw;
    height: 8vw;
  }

  .head .title {
    margin-top: 5vw;
  }

  .head .title h1 {
    font-size: 40px;
  }

  .head .title h2 {
    font-size: 20px;
    font-weight: 400;
    margin-top: 0.6vw;
  }

  .head .tips {
    font-size: 14px;
  }

  .download {
    height: 25vw;
    padding: 0 25px;
    margin-top: 7vw;
  }

  .download .card {
    width: 150px;
    height: inherit;
    margin: 0 2vw;
    padding: 5vw 0 3vw 0;
    font-size: 2vw;
  }

  .card p {
    font-size: 1.6vw;
  }

  .downType {
    width: 8vw;
    height: 8vw;
  }

  .down_btn {
    color: #fff;
    width: 80%;
    height: 4vw;
    border-radius: 101.6px;
    background: rgba(255, 127, 41, 1);
    cursor: pointer;
  }

  .communicate,
  .advantage {
    width: 100%;
    height: 61vw;
    background-color: #fff;
    padding: 16px;
    text-align: center;
  }

  .h1Txt {
    font-size: 4vw;
    font-weight: 500;
    margin-bottom: 7vw
  }


  .com_box {
    width: 100%;
  }

  .com_card {
    width: 21vw;
    height: 32vw;
    position: relative;
    margin: 0 1.7vw;
  }

  .com_card .desc {
    position: absolute;
    top: 65%;
    left: 2vw;
    right: 2vw;
    line-height: 2.6vw;

  }

  .type_box {
    width: inherit;
    height: 18.5vw;
    padding: 23% 1.3vw 2.6vw 1.3vw;
    border-radius: 2.1vw;
  }

  .type_box img {
    width: 18.3vw;
    height: 14vw;
    position: absolute;
    top: 10%;
  }

  .type_box .typetxt {
    font-size: 1.8vw;
    font-weight: 550;
  }


  .desc {
    font-size: 1.6vw;
    font-weight: 400;
    text-align: left;
    letter-spacing: 0;
    color: rgba(94, 94, 94, 1);

  }

  .advantage {
    height: 71.9vw;
    background-color: rgba(240, 240, 240, 1);
  }

  .traits1,
  .traits2 {
    width: 100%;
    height: 22.5vw;
  }


  .traits2 {
    margin-top: 3.7vw;
  }

  .traits1 .item,
  .traits2 .item {
    padding: 0 22px;
    text-align: left;
    margin: 0 1.7vw;
    border-radius: 16px;
    background-color: #fff;

  }

  .traits1 .item {
    width: 25.6vw;
    height: 22.5vw;
  }

  .traits2 .item {
    width: 18.3vw;
    height: 22.5vw;
  }

  .traits1 .item .desc,
  .traits2 .item .desc {
    font-size: 1.6vw;
    font-weight: 400;
    text-align: left;
    /* transform: scale(0.8); */
  }


  .item h3 {
    font-size: 1.9vw;
    margin-top: 2vw;
    /* margin-bottom: 4vw; */
    margin-bottom: 13%;
    color: #fff;
  }

  .foot {
    width: 100%;
    height: 66.6vw;
    background-color: #fff;
    padding-top: 6.6vw;
    text-align: center;
    /* padding: 0 20px; */
  }

  .foot_ctx {
    padding: 0 20px;
  }

  .left,
  .right {
    width: 33.3vw;
    height: 38.3vw;
  }



  .left h2,
  .right h2 {
    width: 100%;
    height: 3.5vw;
    line-height: 3.5vw;
    text-align: left;
    padding-left: 2.6vw;
    font-size: 1.9vw;
  }

  .li {
    width: 100%;
    height: 7.9vw;
    text-align: left;
  }

  .li h3 {
    font-size: 1.9vw;
    font-weight: 600;
    position: relative;
    text-align: left;
    padding-left: 2.6vw;
    padding-bottom: 0.6vw;
  }

  .li h3::before {
    position: absolute;
    content: '';
    left: 0.6vw;
    top: 0.6vw;
    width: 1vw;
    height: 1vw;
    border-radius: 50%;
    background: linear-gradient(90deg, rgba(246, 211, 101, 1) 0%, rgba(255, 125, 26, 1) 100%);
  }

  .li p {
    font-size: 1.6vw;
    font-weight: 400;
    margin-left: 2.6vw;
    /* background-color: aqua; */
    color: rgba(94, 94, 94, 1);
  }



  .foot_bg {
    width: 43.3vw;
    height: 38.3vw;
    margin: 0 0.6vw;
  }

  footer {
    font-size: 2.2vw;
  }
}