@media only screen and (max-width: 768px) {
  /* 通用样式 */
  * {
    margin: 0;
    padding: 0;
    list-style: none;
    box-sizing: border-box;
    outline: none !important;
  }

  html {
    font-size: 100px;
  }

  .box1200 {
    margin: 0 auto;
    width: 12rem;
  }

  .top {
    background: url(./banner_app.png) no-repeat;
    background-size: 100%;
    height: 3.6rem;
  }

  .contentBox {
    width: 100%;
    margin: 0 auto;
    height: auto;
    background-color: #ffff;
    position: relative;
    top: 0;
    box-shadow: none;
    padding: 0.2rem 0;
  }

  .sec_left,
  .sec_right {
    float: none;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
    padding: 0 0.2rem;
    height: 290px;
  }

  .slideTxtBox2 .bt ul {
    font-size: 0.2rem;
  }

  .slideTxtBox2 .bt,
  .slideTxtBox3 .bt {
    width: 100%;
    height: 100%;
    line-height: 0.6rem;
    position: relative;
    clear: both;
    font-size: 0.2rem;
    padding: 0.2rem 0;
    display: flex;
  }

  .slideTxtBox3 .bt ul li:first-child {
    line-height: 0.6rem;
    padding: 0 0.24rem;
  }

  .slideTxtBox2 .xx ul li {
    text-overflow: ellipsis;
    white-space: nowrap;
    height: 0.8rem;
    line-height: 0.8rem;
    background-size: 0.08rem;
  }

  .slideTxtBox3 .tu ul li {
    width: 50%;
    height: auto;
    float: left;
    margin: 0.1rem 0;
    padding: 0.3rem 0;
    background-size: 100% !important;
  }

  .slideTxtBox3 .tu ul li a {
    /* padding: .2rem; */
    /* margin: .1rem 0; */
  }

  .slideTxtBox2 .bt ul li {
    font-size: 0.2rem;
  }

  .slideTxtBox3 .tu ul li a .s_tilte {
    position: absolute;
    display: block;
    top: 50%;
    left: 0.4rem;
    right: 1rem;
    font-size: 0.24rem;
    text-align: left;
    padding: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    /* min-height: .8rem; */
    line-height: 0.38rem;
    transform: translateY(-50%);
  }

  .slideTxtBox2 .xx ul li a {
    font-size: 16px;
    width: 100%;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    height: 0.8rem;
    line-height: 0.8rem;
  }

  .slideTxtBox2 .bt ul li.on {
    background-size: 3%;
    padding: 0 0.24rem;
  }

  .contentbox2 {
    width: 100%;
    float: none;
    margin: 0 auto;
    padding: 0 0.2rem;
  }

  .contentbox3 {
    float: none;
    width: 100%;
    /* height: 100%; */
    margin: 0 auto;
    padding: 0 0.15rem;
  }

  .slideTxtBox4 .tu ul li {
    width: 50%;
    float: left;
    margin: 0.1rem 0;
  }

  .slideTxtBox4 .tu ul li a .s_tilte {
    font-size: 0.16rem;
  }

  .slideTxtBox4 {
    margin-top: 0;
  }

  .slideTxtBox4 .tu ul li a .s_tilte {
    font-size: 0.24rem;
    position: absolute;
    /* width: 100%; */
    display: block;
    top: 50%;
    right: 1.2rem;
    left: 0.6rem;
    /* font-size: .22rem; */
    text-align: left;
    padding: 0;
    line-height: 0.24rem;
    transform: translateY(-50%);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 0.48rem;
    line-height: 0.36rem;
  }

  .slideTxtBox4 {
    margin-top: 0;
  }

  .slideTxtBox4 .bt ul li:first-child {
    padding-left: 0.15rem;
    font-size: 0.2rem;
    padding: 0 0.24rem;
  }

  .slideTxtBox4 .tu ul li a {
    display: block;
    /* padding: 0 0.1rem; */
    margin: 0.1rem;
  }

  .slideTxtBox4 .tu {
    padding: 0.2rem 0;
  }
  .slideTxtBox3 .bt ul li a {
    font-size: 0.32rem;
    color: #1677ff;
    display: block;
  }
  .slideTxtBox4 .bt {
    width: 100%;
    height: 100%;
    line-height: 0.6rem;
    position: relative;
    clear: both;
    font-size: 0.2rem;
    border-bottom: 1px solid #999999;
    padding: 0.2rem 0;
    display: flex;
  }
  .slideTxtBox4 .bt ul li a {
    font-size: 0.32rem;
    color: #1677ff;
    display: block;
  }
  .slideTxtBox2 .bt ul li.on a,
  .zz_list .up span {
    display: block;
    font-size: 0.32rem;
  }
  .zz_list .up span {
    margin-left: 20px;
  }
}