/* common  */

header {
  width: 100%;
  height: 60px;
}


nav {
  display: flex;
  width: 100%;
  border-bottom: 1px solid rgba(230, 230, 230, 1);
  align-items: center;
}

.navagation {
  display: flex;
  align-items: center;
  justify-content: end;
}

.navagation li:not(:last-child) {
  margin-right: 24px;
}

.video-bg {
  background: #333333;
}

.video-content-bg {
  background: #F7F7F7;
}

.main-width {
  max-width: 1280px;
  margin: 0 auto;
}

.nav-width {
  width: 1280px;
  margin: 0 auto;
}

@media only screen and (max-width: 1280px) {
  .main-width {
    width: auto;
    margin: 0 16px;
  }
  .main-width > .br-230-100 {
    border: none;
  }
  .nav-width {
    margin: 0 20px;
  }
}

/* video-detail */

.video-content .icon-bofang {
  font-size: 60px;
  color: #fff;
  opacity: 0.6;
}

.introduction-table li {
  /* display: flex; */
  width: 100%;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.introduction-table li p {
  /* padding-right: 150px; */
  flex: 8;
  color: rgba(0, 0, 0, 0.85);
}

.introduction-table li p:first-child {
  padding-right: 0;
  flex: 1;
  color: #996600;
}

@media only screen and (max-width: 1024px) {
  .introduction-table li p {
    padding-right: 50px;
    flex: 3;
  }

  .introduction-table li p:first-child {
    flex: 1;
  }
}

@media only screen and (max-width: 640px) {
  .introduction-table li p {
    padding-right: 0;
    flex: 2;
  }

  .introduction-table li p:first-child {
    flex: 1;
  }
}