html {
  background-color: #f3f3f3;
}

/*宽度1400px*/
.content-1400 {
  width: 1400px;
  margin: 25px auto 0 auto;
  font-size: 14px;
  background-color: #fff;
  box-sizing: border-box;
  padding: 48px 40px 20px 40px;
  min-height: 200px;
  margin-bottom: 20px;
}

.about-us {
  min-height: 600px;
  margin-bottom: 25px;
  padding-bottom: 50px;
}

.about-us-content {
  font-size: 16px;
  margin-top: 26px;
}

.about-us-content p {
  margin-top: 10px;
  text-indent: 2em;
  text-align: left;
  line-height: 1.8;
}

.about-us-content-video {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 30px;
}
.about-us-content-img {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 30px;
}

.about-us-content-video video {
  width: 720px;
  height: 480px;
}

.about-us-content-img img {
  width: 720px;
  height: 480px;
}

.xauc_title {
  font-size: 32px;
  line-height: 48px;
  color: #333;
  font-weight: bold;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
}
.xauc_line {
  border-bottom: 1px solid #ededed;
  margin-top: 30px;
  margin-bottom: 30px;
}
.xauc_ftit {
  font-size: 14px;
  color: #737373;
  text-align: center;
  margin-bottom: 40px;
}
.xauc_bj {
  font-size: 14px;
  color: #737373;
  text-align: right;
  margin-top: 40px;
}
.xauc_box {
  width: 800px;
  margin: 0 auto;
  margin-top: 30px;
  margin-bottom: 30px;
  display: flex;
}
.xauc_box_li {
  width: 400px;
  height: 100px;
  background-color: #f3f3f3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 30px;
}
.xauc_box_liHover {
  background-color: #3488ea;
}
.xbl_text {
  font-size: 14px;
  color: #7c7c7c;
  overflow: hidden;
  display: block;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  padding-right: 20px;
  margin-right: 20px;
  border-right: 1px solid #d9d9d9;
}
.xauc_box_liHover .xbl_text {
  color: #fff;
  border-right: none;
  border-left: 1px solid #d9d9d9;
  padding-right: 0px;
  margin-right: 0px;
  padding-left: 20px;
  margin-left: 10px;
}
.xbl_img {
  width: 24px;
  height: 24px;
}