.bg {
  position: fixed;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  top: 0;
  left: 0;
}
.wrap{
    position: relative;
    z-index: 2;
}
.phone_bg {
  display: none;
}
.all{
    position: relative;
    z-index: 2;
}
.item{
    border-radius:10px;
    color: #fff;
    padding: 40px;
    /*border-bottom: 1px solid rgba(255,255,255,0.1);*/
    transition: all 0.5s;
    cursor: pointer;
    box-shadow: 0 0 30px 20px rgba(83, 43, 231, 0.3);
}
.item:nth-child(n+2){
    margin-top: 40px;
}
.item a{
      background: -webkit-gradient(linear, left top, right top, color-stop(33.33%, #ffffff), color-stop(66.66%, #4270d5), to(#5c57c7));
  background: linear-gradient(to right, #ffffff 33.33%, #4270d5 66.66%, #5c57c7);
  background-size: 300% 100%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent !important;
  background-position: 0% 0;
  -webkit-transition: background-position 0.5s ease;
  transition: background-position 0.5s ease;
}
.item_act a{
    background-position: 100% 0;
}
.item .des{
    line-height: 1.77;
    opacity: 0.7;
}
.item .con{
    line-height: 1.77;
    opacity: 0.7;
}
.item .btm{
    display: none;
}
.item .title{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.title svg{
    transition: all 0.5s;
}
.item_act .title svg{
    transform: rotate(90deg);
}
@media screen and (max-width: 500px) {
  .item {
    padding: 25px;
  }
}
