.clean-service-area .section-sub-title {
  position: relative;
  display: inline-block;
}

.clean-service-area .section-sub-title::before {
  position: absolute;
  content: "";
  height: 3px;
  width: 50px;
  background: var(--color-primary);
  left: -54px;
  top: 8px;
}

.clean-service-area .section-sub-title::after {
  position: absolute;
  content: "";
  height: 3px;
  width: 50px;
  background: var(--color-primary);
  right: -56px;
  top: 8px;
}

.clean-service-area .section-sub-title h4 {
  font-size: 17px;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 19px;
  font-family: var(--title-font-family);
}

.clean-service-area .section-main-title {
  margin-bottom: 13px;
}

.clean-service-area .section-main-title h2 {
  font-size: 44px;
  color: #fff;
  font-weight: 600;
  font-family: var(--title-font-family);
}

.clean-service-area .section-discription {
  width: 44%;
  margin: auto;
  margin-bottom: 60px;
}

.clean-service-area .section-discription p {
  color: #fff;
  font-weight: 400;
  opacity: 0.800;
  font-size: 16px;
  line-height: 24px;
  word-wrap: break-word;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  /* 控制显示的行数 */
  -webkit-box-orient: vertical;
}

.clean-service-area {
  padding: 90px 0 95px;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.clean-service-area .service-single-box {
  border: 1px solid #ffffff;
  padding: 34px 33px 27px;
  position: relative;
  z-index: 1;
  transition: .5s;
  margin-bottom: 40px;
}

.clean-service-area .service-single-box:hover {
  border: 1px solid var(--color-primary);
}

.clean-service-area .service-single-box::before {
  position: absolute;
  content: "";
  height: 100%;
  width: 0;
  top: 0;
  left: 0;
  background: var(--color-primary);
  z-index: -1;
  transition: .5s;
}

.clean-service-area .service-single-box:hover:before {
  width: 100%;
}

.clean-service-area .service-content a {
  display: flex;
  font-size: 22px;
  color: #ffffff;
  font-weight: 500;
  text-decoration: none;
  justify-content: space-between;
  transition: .5s;
}

.clean-service-area .service-single-box:hover .service-content a {
  color: #000;
}

.clean-service-area .service-content a i {
  border: 1px solid #ffffff;
  height: 40px;
  width: 40px;
  line-height: 40px;
  text-align: center;
  border-radius: 100%;
  margin-top: -8px;
  transition: .5s;
  flex: 0 0 40px;
}

.clean-service-area .service-single-box:hover .service-content a i {
  background: #fff;
  color: #000;
}

.clean-service-area .clean-home-btn a {
  display: inline-block;
  text-decoration: none;
  font-size: 18px;
  font-weight: 400;
  padding: 15px 30px;
  position: relative;
  z-index: 1;
  overflow: hidden;
  transition: .5s;
}
.clean-service-area .clean-home-btn.service a {
  border-radius: var(--button-radius);
  padding: 18px 30px;
  color: #fff;
  background-color: var(--color-primary);
}
.clean-service-area .clean-home-btn a:hover{
  color: #ffff;
}
.clean-service-area .clean-home-btn a::before{
  position: absolute;
  content: "";
  height: 100%;
  width: 100%;
  top: 0;
  left: 0;
  background:var(--color-primary);
  z-index: -1;
  transition: .5s;
}
.clean-service-area .clean-home-btn a:hover::before{
  transform: rotateX(90deg);
}
.clean-service-area .clean-home-btn a::after {
  position: absolute;
  content: "";
  height: 100%;
  width: 100%;
  top: 0;
  left: 0;
  background: var(--color-primary);
  z-index: -1;
  transition: .5s;
}
.clean-service-area .clean-home-btn a:hover::after{
  transform: rotateY(90deg);
}



.clean-service-area .clean-home-btn.service {
  margin-top: 10px;
}

.clean-service-area .clean-home-btn.service a:hover {
  background-color: var(--btn-hover);
}

@media (min-width: 768px) and (max-width: 991px) {
  .clean-service-area {
    padding: 80px 0 76px;
  }

  .clean-service-area .section-main-title h2 {
    font-size: 40px;
  }

  .section-discription {
    width: 90%;
  }

  .clean-service-area .service-single-box {
    padding: 30px 33px 23px;
  }

  .clean-service-area .service-content a {
    font-size: 20px;
  }

}

@media only screen and (min-width: 600px) and (max-width: 767px) {
  .clean-service-area .service-area {
    padding: 80px 0 75px;
  }

  .clean-service-area .section-main-title h2 {
    font-size: 40px;
  }

  .clean-service-area .section-discription {
    width: 100%;
  }
}

@media only screen and (min-width: 480px) and (max-width: 599px) {
  .clean-service-area .section-main-title h2 {
    font-size: 40px;
  }

  .clean-service-area .section-discription {
    width: 100%;
  }
}

@media only screen and (min-width: 320px) and (max-width: 599px) {

  .clean-service-area .section-main-title h2 {
    font-size: 26px;
  }

  .clean-service-area .section-discription.service p {
    font-size: 14px;
  }

  .clean-service-area {
    padding: 80px 0 75px;
  }

  .clean-service-area .service-single-box {
    padding: 28px 33px 20px;
  }

  .clean-service-area .section-discription {
    width: 100%;
  }

  .clean-service-area .service-content a {
    font-size: 20px;
  }

  .clean-service-area .service-content a i {
    height: 35px;
    width: 35px;
    line-height: 35px;
  }

  .clean-service-area .clean-home-btn.service a {
    padding: 12px 22px;
  }
}