.commonClass {
  width: 100%;
  height: 600px;
}
.introductionN-1 {
  display: flex;
  justify-content: center;
  background-color: #fbfbfb;
  align-items: center;
}
.introductionN-top {
  background: url(/images/numOne.png) no-repeat;
  height: 70px;
  background-size: 85px 70px;
  box-sizing: border-box;
  padding-top: 30px;

  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}
.introductionN-1 .introductionN-left {
  margin-right: 100px;
}
.introductionN-1 .introductionN-right {
  width: 600px;
}
.introductionN-right img {
  width: 100%;
}
.introductionN-text {
  width: 400px;

  color: #333333;
  line-height: 30px;
  font-size: 18px;
}

.introductionN-2 {
  display: flex;
  justify-content: center;
  background-color: #fff;
  align-items: center;
}
.introductionN-2 .introductionN-right {
  margin-right: 100px;
  height: 100%;
  display: flex;
  align-items: center;
}
.introductionN-2 .introductionN-top {
  background: url(/images/numTwo.png) no-repeat;
  height: 70px;
  background-size: 85px 70px;
  box-sizing: border-box;
  padding-top: 30px;

  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}
.introductionN-2 .introductionN-right img {
  width: 550px;
  margin-top: 40px;
}
.introductionN-3 {
  display: flex;
  justify-content: center;
  background-color: #fbfbfb;
  align-items: center;
}
.introductionN-3 .introductionN-top {
  background: url(/images/numThree.png) no-repeat;
  height: 70px;
  background-size: 85px 70px;
  box-sizing: border-box;
  padding-top: 30px;

  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}

.introductionN-quan .introductionN-top {
  background: url(/images/numThree.png) no-repeat;
  height: 70px;
  background-size: 85px 70px;
  box-sizing: border-box;
  padding-top: 30px;

  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}

.introductionN-3 .introductionN-right {
  width: 600px;
  margin-left: 100px;
}
.introductionN-right img {
  width: 100%;
}
.introductionN-4 {
  display: flex;
  justify-content: center;
  background-color: #fff;
  align-items: center;
}
.introductionN-4 .introductionN-right {
  width: 600px;
  margin-right: 100px;
}
.introductionN-4 .introductionN-top {
  background: url(/images/numFour.png) no-repeat;
  height: 70px;
  background-size: 85px 70px;
  box-sizing: border-box;
  padding-top: 30px;
  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}
.swiper-content {
  background-color: #fbfbfb;
  padding-bottom: 100px;
}

.introductionN-left-special .introductionN-top {
  background: url(/images/numOne.png) no-repeat;
  height: 70px;
  background-size: 85px 70px;
  box-sizing: border-box;
  padding-top: 30px;

  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 20px;
}
.introductionN-special {
  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}
.introductionN-left-special {
  margin-right: 100px;
}
.introductionN-right-special {
  margin-right: 100px;
}
.introductionN-right-special img {
  width: 600px;
}

.volume-1 {
  background: url(/images/numOne.png) no-repeat;
  height: 70px;
  background-size: 90px 70px;
  box-sizing: border-box;
  padding-top: 30px;
  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}
.volume-2 {
  background: url(/images/numTwo.png) no-repeat;
  height: 60px;
  background-size: 90px 65px;
  box-sizing: border-box;
  padding-top: 30px;
  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}
.volume-3 {
  background: url(/images/numThree.png) no-repeat;
  height: 60px;
  background-size: 90px 65px;
  box-sizing: border-box;
  padding-top: 30px;
  font-weight: 600;
  color: #333333;
  font-size: 30px;
  margin-bottom: 40px;
}
.special-img {
  width: 500px !important;
  height: 500px;
  transform: scale(0.9);
}

.homeImg {
  transform: scale(0.7);
}
.homeImg2 {
  transform: scale(0.5);
}

.advantage-wrapper {
  display: flex;
  align-items: center;
  width: 1100px;
  margin-bottom: 26px;
}

.advantage-item {
  flex: 1;
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(68,121,217,0.1) 0%, rgba(50,131,224,0.1) 100%);
  border-radius: 15px;
  font-size: 23px;
  line-height: 34px;
  font-weight: 600;
  color: #447ED9;
}

.advantage-item:not(:last-child) {
  margin-right: 26px;
}