.content {
  padding: 4.5% 0;
}
.content .common_top {
  margin-bottom: 30px;
}
.content .con p {
  line-height: 1.875;
}
.content .con img {
  max-width: 100% !important;
  height: auto !important;
}
.box_img{
    margin-top: 40px;
    position: relative;
}
.box_img img{
    width: 100%;
}
.box_img li{
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #e50012;
    cursor: pointer;
}

.box_img li:after{
    position: absolute;
    width: 100%; 
    height: 100%; 
    border-radius: 50%;
    content: ''; 
    display: block;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    animation: scale 2s infinite;
    background: #e50012;
}
@keyframes scale{0%{ transform: scale(1); opacity:.9}100%{ transform: scale(4); opacity: 0;}}
        
.box_img li:nth-child(1):after{
    animation-delay: 0.1s; 
}
.box_img li:nth-child(2):after{
    animation-delay: 0.2s;
}
.box_img li:nth-child(3):after{
    animation-delay: 0.3s;
}    
.box_img li:nth-child(4):after{
    animation-delay: 0.4s;
}
.box_img li:nth-child(5):after{
    animation-delay: 0.5s;
}
.box_img li:nth-child(6):after{
    animation-delay: 0.6s;
} 
.box_task{
    z-index: 999;
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    display: none;
    background: rgba(0,0,0,0.9);
    display: none;
}  
.box_flx{
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
.box_flx img{
    max-height: 80%;
    max-width: 80%;
}
.box_task_close{
    cursor: pointer;
    margin-top: 30px;
    transition: all 0.5s;
}
.box_task_close:hover{
    transform: rotate(180deg);
}
@media screen and (max-width: 1600px) {
  .content .common_top {
    margin-bottom: 25px;
  }
}
@media screen and (max-width: 1200px) {
  .content .common_top {
    margin-bottom: 20px;
  }
  .box_img li{
      width: 8px;
      height: 8px;
  }
}
@media screen and (max-width: 600px) {
  .content {
    padding: 40px 0;
  }
}