.about-video {
  padding: 100px 0;
}

.about-video p {
  font-size: 17px;
  color: #666;
  line-height: 1.6;
}

.about-video .title {
  width: 95%;
  margin: 0 auto;
  text-align: center;
}

.about-video .title h1,
.about-video .title h1 a,
.about-video .title h2,
.about-video .title h2 a,
.about-video .title h3,
.about-video .title h3 a,
.about-video .title h4,
.about-video .title h4 a,
.about-video .title h5,
.about-video .title h5 a {
  font-size: 36px;
  letter-spacing: 2px;
  color: #000009;
  font-family: var(--font-family);
}

.about-video .title b {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 17px;
  font-family: var(--font-family);
  letter-spacing: 0;
}

.about-video .title p {
  margin-top: 20px;
}

.about-video {
  position: relative;
  overflow: hidden;
}

.about-video .v {
  position: relative;
  display: block;
  margin-top: 30px;
}
.about-video .v img {
  width: 100%;
}
.about-video .videobtn {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.about-video .videobtn i {
  font-size: calc(60px + 100 * ((100vw - 600px) / 1920));
  color: #fff;
}
.about-video .v:hover i {
  color: var(--color-primary);
}

.about-videopic {
  position: relative;
  width: 100%;
  padding-left: 58px;
  margin-top: 40px;
}

.about-videopic span {
  display: block;
  overflow: hidden;
}

.about-videopic span img {
  width: 100%;
}

.about-videopic:hover img {
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
  transform: scale(1.05);
}

.about-videopic:hover .btbofang::after {
  display: block;
}

.about-video::after {
  content: "";
  position: absolute;
  right: -126px;
  top: 40%;
  width: 466px;
  height: 287px;
  background: url("./pics/bg02.png") no-repeat;
  z-index: -1;
}

@media screen and (max-width: 1580px) {
  .about-video .title h3 {
    font-size: 34px;
  }

  .about-get p {
    font-size: 28px;
  }

  .about-videopic {
    background-size: auto 84%;
  }

  .about-video section {
    padding: 60px 0;
  }
}

@media screen and (max-width: 960px) {
  .about-videopic {
    padding-left: 18px;
  }
}