body{
  background-color: white !important; 
}
main {
  position: relative;
  padding-top: 100px;
  margin-bottom: 100px;
  background-color: white;
} 
.Heads{ 
  overflow: hidden;
  position: relative;
  width: 100%;
  height: 0;
  padding-top: 20%;
}
.Heads img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
}
.Heads::before{
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50px;
  z-index: 2;
  content: '';
  background-image: url('../img/Head-Bj/z.png');
}

.row .imgs{
  width: 100%;
  position: relative;
  height: 0;
  padding-top: 60%; 
}
.row .imgs img{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.nr{
  width: 100%; 
  margin-top: 30px;
}
.nr p {
  color: #616161;
  font-size: 18px;
}
.nr h3.title {
  font-size: 35px;
  line-height: 45px;
  text-decoration: none;
  margin-bottom: 15px;
  margin-top: 5px;
  font-weight: bold;
}
.nr .p2{
  color: #616161;
}@media screen and (max-width:991px) {
  .sidebar{
      margin-top: 50px;
  }
}