.header {
    width: 100%;
    background: #fff;
}
a {
    text-decoration: none;
}
.header_c {
    width: 1200px;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto;
}
.logo {
    /*width: 117px;*/
    height: 60px;
}
.header_r {
    height: 35px;
    background: #f4f4f4;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 18px;
}
.sou {
    color: #6c6c6c;
    font-size: 12px;
    text-align: center;
    cursor: pointer;
    display: none;
}
.search {
    width: 17px;
    height: 17px;
    display: block;
    margin-right: 10px;
}
.s_txt {
    font-size: 13px;
    color: #6c6c6c;
    cursor: pointer;
}
.input {
    border: none;
    background: #f4f4f4;
    outline: none;
    color: rgba(194, 194, 194, 0.99607);
    display: none;
    font-size: 13px;
    font-weight: 400;
}
input::-webkit-input-placeholder {
    /* WebKit browsers */
    color: #c2c2c2;
  }

  input:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 */
    color: #c2c2c2;
  }

  input::-moz-placeholder {
    /* Mozilla Firefox 19+ */
    color: #c2c2c2;
  }

  input::-ms-input-placeholder {
    /* Internet Explorer 10+ */
    color: #c2c2c2;
  }
  /* 导航 */
  .navBox {
      width: 100%;
      background: #404040;
  }
  .navs {
      width: 1200px;
      height: 40px;
      margin: 0 auto;
      display: flex;
  }
  .nav {
      width: 102px;
      height: 40px;
      text-align: center;
      line-height: 40px;
      color: #fff;
      font-size: 14px;
  }
  .nav:hover {
       background: #787878;
       cursor: pointer;
  }
  .nav_a {
      background: #787878;
  }