body {
  padding: 0;
  margin: 0;
}
a {
  text-decoration: none;
}
.banner {
  width: 100%;
  height: auto;
}
.banner img {
  width: 100%;
  height: 100%;
}
.main {
  margin: 4rem auto;
  width: 75rem;
}
.main .tit {
  font-size: 2.5rem;
  /*font-weight: 600;*/
  color: #333;
  text-align: center;
  padding-bottom: 2rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid #dbdbdb;
}
.main .tit1{
  display: flex;
  justify-content:flex-end;
    margin: 10px  auto 2rem;
}
.main .name,.main .time{
  font-size: 14px;
  color: #666;

}
.main .bot img{
  max-width: 100%
}
.main .bot video{
  max-width: 100%
}
.main .bot p{
  font-size: 16px !important;
  line-height: 1.5;
}
@media (max-width:900px) {
    .main {
        margin: 20px auto;
        width: 90%;
        min-height: 250px
    }
    .main .tit {
        font-size: 16px;
        font-weight: 600;
        color: #000;
        text-align: center;
        padding-bottom: 20px;
        margin-bottom: 20px;
        border-bottom: 1px solid #dbdbdb;
    }
    .main .tit1 {
        display: flex;
        justify-content: space-between;
        margin: 20px auto;
    }
}