.banner {
  width: 100%;
  height: 770px;
  position: relative;
  overflow: auto;
  top: 0;
  background: url(https://cloudpnrcdn.oss-cn-shanghai.aliyuncs.com/hfwebsite/new-public/images/customer-feedback/bg1.png) no-repeat center;
  z-index: -1;
}

.banner-section {
  width: 1220px;
  margin: 0 auto;
}

.banner-introduce {
  margin-top: 250px;
}



.banner-title .title-img {
  width: 735px;
  height: 206px;
  margin-left: -10px;
}

/* main内容 */
.main {
  margin: -162px auto 0;
}

.main-wrap {
  width: 1160px;
  margin: 0 auto;
  position: relative;
}

.main-wrap::before {
  content: '';
  display: inline-block;
  width: 1px;
  height: calc(100% - 149px);
  background: url(https://cloudpnrcdn.oss-cn-shanghai.aliyuncs.com/hfwebsite/new-public/images/customer-feedback/line.png) no-repeat center;
  position: absolute;
  left: -2px;
  top: 149px;
}

.main-section-box {
  width: 1160px;
  margin: 0 auto;
  padding-top: 100px;
  display: flex;
}

.main-section-box .left {
  flex: 1;
  padding: 40px 0 0 28px;
}

.main-section-box .left .title {
  color: #333333;
  font-size: 28px;
  font-weight: 600;
  line-height: 36px;
  letter-spacing: 0;
  text-align: left;
  position: relative;
}

.main-section-box .left .title::before {
  content: '';
  display: block;
  width: 2px;
  height: 30px;
  position: absolute;
  top: 3px;
  left: -30px;
  background: #0056FF;
}

.main-section-box .left .desc {
  width: 441px;
  color: #333333ff;
  font-size: 22px;
  font-weight: 500;
  line-height: 36px;
  letter-spacing: 0;
  text-align: left;
}

.main-section-box .left .content {
  width: 418px;
  font-weight: 400;
  font-size: 17px;
  color: #5F5F5F;
  letter-spacing: 1.56px;
  text-align: justify;
  line-height: 32.3px;
  margin-top: 19px;
}

.main-section-box .right {
  width: 645px;
  height: 360px;
  flex-shrink: 0;
  box-shadow: 0 10px 40px 0 rgba(5, 6, 55, 0.37);
  border-radius: 8px;
  overflow: hidden;
}

.main-section-box .right .img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: transform 0.3s ease;
}

.main-section-box .right .img:hover {
  transform: scale(1.1);
  transition: transform 0.3s ease;
}

.main-section-box .right img {
  width: 100%;
  height: 100%;
}

.free-service {
  margin-top: 200px;
}

* {
  box-sizing: border-box;
}