.banner-video {
  width: 100%;
}
.banner-video video {
  width: 100%;
}
.s1 {
  background: #fff;
  position: relative;
}
.s1 .tit {
  text-align: center;
  margin-bottom: 100px;
}
.s1 .tit h2 {
  font-size: 60px;
  color: #e5e5e5;
  font-weight: 600;
}
.s1 .tit h4 {
  font-size: 40px;
  color: #000;
  font-weight: 600;
}
.s1 .img-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  padding-top: 100px;
}
.s1 .img-box .img {
  width: 22%;
  margin: 0 10px;
  margin-top: -40px;
  cursor: pointer;
}
.s1 .img-box .img img {
  width: 100%;
}
.s2 h4 {
  font-size: 24px;
  font-weight: 600;
  background: url(../images/fwnr_pic.png) no-repeat 0;
}
.s2 .text {
  margin-top: 30px;
  padding-left: 50px;
  margin-bottom: 50px;
}
.s2 .text p {
  margin: 0;
  font-size: 18px;
  color: #333;
  width: 70%;
  line-height: 2;
  padding-left: 2em;
}
.s3 {
  background: #fff;
}
.s3 .tit {
  text-align: center;
  margin-bottom: 100px;
}
.s3 .tit h2 {
  font-size: 60px;
  color: #e5e5e5;
  font-weight: 600;
}
.s3 .tit h4 {
  font-size: 40px;
  color: #000;
  font-weight: 600;
}
.s3 .con {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}
.s3 .con img {
  width: 100%;
}
.con-img {
  display: none;
}
@media (max-width: 768px) {
  .s1 .img-box {
    padding-top: 0;
    justify-content: space-between;
  }
  .s1 .img-box .img {
    width: 48%;
    margin: 0;
    margin-top: 20px;
  }
  .s2 .text {
    margin-top: 0;
    padding: 0;
  }
  .con {
    display: none;
  }
  .con-img {
    display: block;
    width: 100%;
  }
  .con-img img {
    width: 100%;
  }
  .s3 .tit {
    margin-bottom: 50px;
  }
  .s3 .tit h2 {
    font-size: 40px;
  }
  .s1 .tit h2 {
    font-size: 40px;
  }
  .s1 .tit {
    margin-bottom: 50px;
  }
  .s2 .text p {
    width: 100%;
  }
}