.wrap {
  background-color: #f7f7f7;
  padding: 40px 0 100px;
}

.video-crumbs {
  padding: 20px 0;
}
.video-banner {
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 36px;
  background: url(../image/new/12.jpg) no-repeat center / cover;
  text-align: center;
}
.video-banner-desc {
  font-size: 16px;
  margin-top: 20px;
}
.cate {
  display: flex;
  margin-bottom: 30px;
  align-items: flex-end;
}
.cate-item {
  display: block;
  margin-right: 40px;
  font-size: 16px;
}
.cate-item.active {
  font-weight: bold;
  font-size: 24px;
}
.list {
  display: flex;
  margin-bottom: 65px;
  flex-wrap: wrap;
}
.item {
  width: calc((100% - 60px) / 3);
  margin-right: 20px;
  margin-bottom: 20px;
  background-color: #fff;
}
.item:nth-child(3n) {
  margin-right: 0;
}
.item-cover {
  position: relative;
}
.item-duration {
  position: absolute;
  bottom: 10px;
  left: 20px;
  border: 2px solid #fff;
  border-radius: 50px;
  background-color: rgba(0, 0, 0, 0.5);
  color: #fff;
  display: flex;
  align-items: center;
  height: 28px;
  padding: 0 10px;
  transition: all 0.3s;
}
.item-duration-icon {
  width: 16px;
  height: 16px;
  object-fit: contain;
  margin-right: 6px;
}
.item:hover .item-duration {
  border-color: #1576d4;
  background-color: #1576d4;
}
.item-image {
  height: 250px;
  width: 100%;
  border-bottom: 1px solid #fff;
  object-fit: cover;
}
.item-summarys {
  display: flex;
  align-items: center;
  padding: 0 20px;
}
.item-summary {
  display: flex;
  align-items: center;
  color: #9f9f9f;
  font-size: 12px;
  margin: 10px 10px 0 0;
}
.item-icon {
  width: 14px;
  height: 14px;
  margin-right: 6px;
}
.item-title {
  font-size: 18px;
  font-weight: bold;
  padding: 10px 20px 20px;
}
@media (max-width: 768px) {
  .video-crumbs {
    display: none;
  }
  .video-banner {
    height: 180px;
    font-size: 20px;
  }
  .wrap {
    padding: 10px 0;
  }
  .video-banner-desc {
    font-size: 12px;
    margin-top: 10px;
    padding: 0 20px;
  }
  .cate {
    overflow-x: auto;
    padding: 10px 0;
  }
  .cate-item {
    font-size: 14px;
    margin-right: 10px;
    flex: none;
  }
  .cate-item.active {
    font-size: 15px;
  }
  .wrap .u-container {
    width: 100%;
    padding: 0 10px;
  }
  .list {
    margin-bottom: 10px;
  }
  .list .item {
    width: calc((100% - 20px) / 2);
    margin-right: 0;
    margin-bottom: 10px;
  }
  .list .item:nth-child(2n) {
    margin-left: 10px;
  }
  .item-summarys {
    padding: 0 6px;
  }
  .item-summary {
    font-size: 10px;
  }
  .item-icon {
    width: 12px;
    height: 12px;
  }
  .item-title {
    padding: 6px 6px 10px;
    font-size: 14px;
  }
  .item-image {
    height: 120px;
  }
  .item-duration {
    left: 10px;
  }
}