body {
  margin: 0;
  padding: 0;
}
.shadow_content {
  width: 100%;
  height: 80px;
  border-bottom: 2px solid #cccccc;
}
a {text-decoration: none;}
.shadow_content_title {
  width: 300px;
  height: 80px;
  float: left;
  font-size: 20px;
  font-weight: 500;
  line-height: 80px;
  margin-left: 360px;
}
.return_shadow {
  display: block;
  width: 90px;
  height: 40px;
  float: right;
  font-size: 15px;
  margin-top: 20px;
  color: #e41212;
  line-height: 40px;
  text-align: center;
  margin-right: 360px;
}
.shadow_video {
  width: 100%;
  height: 800px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
}
.leftButton {
  width: 41px;
  height: 41px;
  border: none;
  background-color: transparent;
  outline: none;
  margin-right: 205px;
  background-image: url(/static/hs_image/left.png);
  background-repeat:no-repeat
}
.rightButton {
  width: 41px;
  height: 41px;
  border: none;
  background-color: transparent;
  outline: none;
  margin-left: 205px;
  background-image: url(/static/hs_image/right.png);
  background-repeat:no-repeat
}
.video_introduce {
  width: 100%;
  height: auto;
  padding-bottom: 50px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: #f3f3f3;
}
.introduce_titlle {
  width: 1200px;
  height: 25px;
  font-size: 18px;
  font-weight: 500;
  margin-top: 50px;
}
.introduce_content {
  width: 1200px;
  height: 400px;
  line-height: 30px;
}
.introduce_content p {
  font-size: 16.2px;
  color: #808080;
}