.r1 {
  background: #FAFCFF;
  padding: 0.8rem 2.4rem;
}
.r1 .container {
  display: flex;
  gap: 0.5rem;
}
.r1 .container .rightBox {
  flex: 1;
}
.r1 .container .rightBox .list {
  display: flex;
  gap: 0.24rem;
  flex-wrap: wrap;
}
.r1 .container .rightBox .list .item {
  width: calc(33.33% - 0.16rem);
  padding: 0.24rem;
  box-sizing: border-box;
  background: #fff;
  border-radius: 4px;
  box-shadow: 6px 6px 20px 0px rgba(55, 99, 170, 0.08);
}
.r1 .container .rightBox .list .item .title {
  margin-top: 0.24rem;
  font-family: Source Han Sans;
  font-size: var(--font16);
  font-weight: 500;
  line-height: 0.28rem;
  color: #181818;
}
.r1 .container .rightBox .list .item .time {
  font-family: Source Han Sans;
  font-size: var(--font14);
  line-height: 0.2rem;
  color: #6B7280;
  margin-top: 0.1rem;
}
.r1 .container .rightBox .list .item .video-js {
  width: 100%;
  height: 1.95rem;
  border-radius: 4px;
  position: relative;
}
.r1 .container .rightBox .list .item .video-js .vjs-poster img {
  object-fit: cover;
}
.r1 .container .rightBox .list .item .video-js .vjs-big-play-button {
  width: 0.36rem;
  height: 0.36rem;
  border: 0;
  background: url("../assets/svg/play.svg") no-repeat;
  background-size: contain;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
}
.r1 .container .rightBox .list .item .video-js .vjs-big-play-button .vjs-icon-placeholder::before {
  content: none;
}
.r1 .container .left {
  display: flex;
  flex-shrink: 0;
}
.r1 .container .left .level {
  width: 2.4rem;
  background: #FFFFFF;
  border-right: 2px solid #E7E7E7;
}
.r1 .container .left .level.two {
  width: 2rem;
}
.r1 .container .left .level .item {
  transition: all 0.3s;
}
.r1 .container .left .level .item.active > .label .rightIcon {
  transform: rotate(90deg);
}
.r1 .container .left .level .item .sonList {
  width: 100%;
  display: none;
  padding-left: 0.12rem;
}
.r1 .container .left .level .item .piece {
  width: 100%;
  height: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.1rem;
  padding: 0 0.24rem;
  cursor: pointer;
  font-family: Source Han Sans;
  font-size: var(--font14);
  color: #181818;
  transition: all 0.3s;
}
.r1 .container .left .level .item .piece span {
  flex: 1;
}
.r1 .container .left .level .item .piece .select {
  width: 0.14rem;
  height: 0.14rem;
  border: 1px solid #E4E7ED;
  border-radius: 2px;
  transition: all 0.3s;
}
.r1 .container .left .level .item .piece:hover {
  background: rgba(66, 166, 255, 0.1);
}
.r1 .container .left .level .item .piece.son.active {
  background: rgba(66, 166, 255, 0.1);
  color: #42A6FF;
}
.r1 .container .left .level .item .piece.son.active .select {
  background: url('../assets/svg/select.svg') no-repeat;
  background-size: contain;
  border-color: #42A6FF;
}
.r1 .container .left .level .item .piece .rightIcon {
  transition: all 0.3s;
  width: 0.16rem;
  height: 0.16rem;
}
@media screen and (orientation: portrait) {
  .r1 {
    padding: 0.8rem 0.24rem;
    position: relative;
  }
  .r1 .menu {
    display: block;
    position: absolute;
    top: 0.24rem;
    right: 0.24rem;
  }
  .r1 .container .left {
    display: none;
  }
  .r1 .container .rightBox .list .item {
    width: 100%;
    height: 3rem;
  }
  .r1 .container .rightBox .list .item .title {
    width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
  }
  #leftBox {
    display: flex;
    flex-shrink: 0;
  }
  #leftBox .level {
    width: 3rem;
    background: #FFFFFF;
    border-right: 2px solid #E7E7E7;
  }
  #leftBox .level.two {
    width: 2rem;
  }
  #leftBox .level .item {
    transition: all 0.3s;
  }
  #leftBox .level .item.active > .label .rightIcon {
    transform: rotate(90deg);
  }
  #leftBox .level .item.active .sonList {
    display: block !important;
  }
  #leftBox .level .item .sonList {
    width: 100%;
    display: none;
    padding-left: 0.12rem;
  }
  #leftBox .level .item .piece {
    width: 100%;
    height: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.1rem;
    padding: 0 0.24rem;
    cursor: pointer;
    font-family: Source Han Sans;
    font-size: var(--font14);
    color: #181818;
    transition: all 0.3s;
  }
  #leftBox .level .item .piece span {
    flex: 1;
  }
  #leftBox .level .item .piece .select {
    width: 0.14rem;
    height: 0.14rem;
    border: 1px solid #E4E7ED;
    border-radius: 2px;
    transition: all 0.3s;
  }
  #leftBox .level .item .piece:hover {
    background: rgba(66, 166, 255, 0.1);
  }
  #leftBox .level .item .piece.son.active {
    background: rgba(66, 166, 255, 0.1);
    color: #42A6FF;
  }
  #leftBox .level .item .piece.son.active .select {
    background: url('../assets/svg/select.svg') no-repeat;
    background-size: contain;
    border-color: #42A6FF;
  }
  #leftBox .level .item .piece .rightIcon {
    transition: all 0.3s;
    width: 0.16rem;
    height: 0.16rem;
  }
}