#banner {
  padding-top: 50px;
  padding-bottom: 100px;
}

.nav {
  width: 436px;
  height: 40px;
  line-height: 40px;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  margin-top: 50px;
}

.nav > div {
  width: 218px;
  padding-left: 73px;
  cursor: pointer;
}

.nav img {
  transform: translate(-6px, -2px)
}

.active {
  background-color: #555;
  color: #fff;
}

#banner .content {
  width: 1500px;
  margin: 0 auto;
  margin-top: 96px;
}

.content .txt {
  height: 98px;
  line-height: 96px;
  background-color: #f3f7f8;
  padding-left: 71px;
  position: relative;
  font-size: 24px;
	color: #333;
}

.content .txt::before {
  width: 24px;
	height: 26px;
  content: url(../img/StepInVenyuan/ckxcc.png);
  position: absolute;
  top: 6px;
  left: 27px;
}

.videoList {
  width: 1450px;
  margin: 0 auto;
}

.videoList .tag {
  width: 603px;
	height: 17px;
  margin: 0 auto;
  margin-top: 50px;
  display: flex;
  justify-content: space-between;
}

.videoList .tag .item {
  cursor: pointer;
	font-size: 16px;
	color: #999;
}

.videoList .tag .item:hover {
  color: #27629e;
}

.videoList .area {
  height: 790px;
  display: flex;
  flex-wrap: wrap;
  margin-top: 55px;
}

.videoList .area .video-item {
  width: 450px;
  height: 370px;
  margin-right: 50px;
  cursor: pointer;
}

.videoList .area .video-item:nth-child(3n) {
  margin-right: 0;
}

.videoList .area .video-item .des {
  height: 70px;
  line-height: 70px;
  padding-left: 20px;
  font-size: 18px;
  color: #333;
  position: relative;
  background-color: #f3f7f8;
}

.videoList .area .video-item img {
  width: 450px;
  height: 300px;
}

.videoList .area .video-item .des::after {
  width: 30px;
  height: 10px;
  content: url(../img/StepInVenyuan/jt.png);
  position: absolute;
  top: 0;
  right: 20px;
}

.el-message-box {
  width: auto;
  background-color: #000;
}