/*
* Prefixed by https://autoprefixer.github.io
* PostCSS: v7.0.29,
* Autoprefixer: v9.7.6
* Browsers: > 0.05%,last 11 versions,IE >=8,iOS >= 7,Android >= 4
*/

html, body, .feature-area {
  width: 100%;
  height: 100%;
}

/* 顶部导航栏 */
.header>.container {
  max-width: 92%;
}

.logo>a {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
  -webkit-flex-direction: row;
      -ms-flex-direction: row;
          flex-direction: row;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
}

.logo>a>img {
  width: 36px;
}

.logo>a>span {
  margin-left: 0.3em;
  font-size: 1.8em;
  letter-spacing: .1em;
  color: #fff;
}

/* 中间内容区域 */
.feature-area {
  height: unset;
  min-height: calc(100% - 95px);
  background-image: url(../img/ai.jpg);
  padding-bottom: 100px;
  color: #fff;
}

.feature-area .container {
  max-width: 92%;
}

.feature-area .container .row {
  margin: 0 auto;
  background: #0b1f46;
}

.video-wrapper {
  width: 75%;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
}

video, .video-title {
  width: 100%;
}

video {
  -o-object-fit:contain;
     object-fit:contain;
}

.video-list {
  width: 25%;
  padding: 20px 20px 0 20px;
}

.list-name {
  margin-bottom: 20px;
  font-size: 1.1em;
}

/* .list-name .book::after,
.list-name .unit::after {
  content: '|';
  margin-left: .8em;
} */

.list-name .unit,
.list-name .project {
  margin-left: .2em;
}

.list-item {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
  -webkit-flex-direction: row;
      -ms-flex-direction: row;
          flex-direction: row;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  margin: 0 0 15px;
}

.list-item>span {
  color: #fff;
}

.list-item>span.active {
  color: #fa8919;
}

.list-item>img {
  width: 38%;
  -o-object-fit: cover;
     object-fit: cover;
  margin-right: 10px;
  border-radius: 4px;
}

.video-title {
  padding: 30px 0 30px 20px;
  font-size: 26px;
  background: #0f0f1e !important;
  color: #fff;
}

/* 底栏 */
.footer {
  padding: 35px 0;
  color: #fff;
  text-align: center;
  border-top: 1px solid #fff;
}

.footer::before {
  opacity: 1;
}