.middle {
  min-height: calc(100vh - 263px);
  margin-top: 50px;
}
.middle .content {
  width: 1200px;
  margin: 0 auto;
}
.middle .content .top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.middle .content .top .breadcrumb {
  display: flex;
  align-items: center;
}
.middle .content .top .breadcrumb li {
  font-size: 14px;
  color: #66676b;
  display: flex;
  align-items: center;
}
.middle .content .top .breadcrumb li img {
  width: 15px;
  height: 15px;
  margin-right: 5px;
}
.middle .content .top .breadcrumb li:nth-child(even) {
  margin: 0 8px;
}
.middle .content .article {
  width: 100%;
  height: 300px;
  margin-top: 20px;
}