a {
  text-decoration: none;
  color: black;
}
/*头部图片*/
.headaa {
  min-width: 1100px;
  position: relative;
  opacity: 0;
}  
.head_img {
  position: relative;
  color: white;
  height: 420px;
  margin-top: 64px;
  background: url(../img/normal/cdt_bg1.png) no-repeat center;
  background-size: cover;
}
.partCenter .step {
  height: 744px;
  background-color: #fff;
}
.partCenter .step .pic {
  width: 1085px;
  height: 476px;
  margin-top: 52px;
  background: url(../img/normal/cdt_bg2.png) no-repeat center;
  background-size: contain;
}
.partCenter .step p:first-of-type {
  font-size: 31px;
  font-family: PingFang SC;
  color: #1c1c1c;
  margin-top: 87px;
}
.partCenter .step p:nth-of-type(2) {
  font-size: 19px;
  font-family: PingFang SC;
  font-weight: 500;
  color: #1c1c1c;
  line-height: 42px;
  /*margin-top: 26px;*/
}
.partCenter .step2 {
  height: 362px;
  background: #078ff1;
  color: #fff;
}
.partCenter .step2 .cont {
  width: 1100px;
  height: 100%;
  margin: 0 auto;
  display: flex;
}
.partCenter .step2 .cont div {
  width: 25%;
  position: relative;
}
.partCenter .step2 .cont div .icon {
  width: 97px;
  height: 97px;
  margin-top: 44px;
}
.partCenter .step2 .cont div:first-of-type .icon {
  background: url(../img/normal/cdt_icon1.png) no-repeat center;
  background-size: contain;
}
.partCenter .step2 .cont div:nth-of-type(2) .icon {
  background: url(../img/normal/cdt_icon2.png) no-repeat center;
  background-size: contain;
}
.partCenter .step2 .cont div:nth-of-type(3) .icon {
  background: url(../img/normal/cdt_icon3.png) no-repeat center;
  background-size: contain;
}
.partCenter .step2 .cont div:nth-of-type(4) .icon {
  background: url(../img/normal/cdt_icon4.png) no-repeat center;
  background-size: contain;
}
.partCenter .step2 .cont div p:nth-of-type(2) {
  margin-top: 19px;
  font-size: 19px;
}
.partCenter .step2 .cont div p:nth-of-type(3) {
  margin-top: 30px;
  width: 210px;
  font-size: 14px;
  font-family: PingFang SC;
  font-weight: 500;
  color: #ffffff;
  line-height: 30px;
}
.partCenter .step2 .cont div p:nth-of-type(4) {
  height: 160px;
  width: 1px;
  border-right: 1px solid #fff;
  position: absolute;
  right: 0;
  bottom: 40px;
  opacity: 0.5;
}
.partCenter .step3 {
  height: 824px;
}
.partCenter .step3 .pic {
  height: 444px;
  background: url(../img/normal/cdt_bg3.png) no-repeat center;
  background-size: contain;
}
.partCenter .step3 .cdt-p {
  font-size: 31px;
  font-family: PingFang SC;
  color: #1c1c1c;
  margin-top: 69px;
}
.partCenter .step3 .cdt-txt {
  font-size: 19px;
  font-family: PingFang SC;
  font-weight: 500;
  color: #1c1c1c;
  line-height: 42px;
  /*margin-top: 27px;*/
}
.partCenter .step4 {
  margin-top: 36px;
  height: 420px;
  background: #f1f1f1;
}
.partCenter .step4 img {
  width: 440px;
  height: 390px;
  margin-top: 30px;
}
.partCenter .step4 .img2 {
  width: 403px;
  height: 309px;
  margin-top: 105px;
}
.partCenter .step4 .cont {
  width: 1100px;
  margin: 0 auto;
}
.partCenter .step4 .cont div {
  width: 620px;
  align-items: flex-start;
}
.partCenter .step4 .cont div p:first-of-type {
  font-size: 31px;
  font-family: PingFang SC;
  color: #1c1c1c;
  margin-top: 110px;
  width: 100%;
}
    .partCenter .step4 .cont div p:nth-of-type(2) {
        font-size: 19px;
        font-family: PingFang SC;
        font-weight: 500;
        color: #1c1c1c;
        line-height: 28px;
        margin-top: 10px;
    }
.partCenter .step5 {
  margin-top: 0;
}
.partCenter .step5 .cont img {
  width: 388px;
  height: 381px;
}
.partCenter .step4-1 {
  background: #fff;
}
.partCenter .step4-1 .cont img {
  width: 401px;
  height: 335px;
}
.partCenter .swiper-step {
  position: relative;
}
.partCenter .swiper-step .swiper-pagination {
  margin-bottom: 100px;
}
.partCenter .swiper-step .swiper-slide {
  height: 520px;
  margin-top: 45px;
  text-align: center;
}
.partCenter .swiper-step .swiper-slide img {
  height: 420px;
}
.partCenter .swiper-step .swiper-slide p:first-of-type {
  margin-top: 18px;
  font-size: 25px;
}
.partCenter .swiper-step .swiper-slide p:nth-of-type(2) {
  font-size: 20px;
  margin-top: 0;
}
.partCenter .swiper-step .swiper-button-prev {
  position: absolute;
  left: 50%;
  margin-left: -620px;
}
.partCenter .swiper {
  width: 1100px;
  margin: 0 auto;
}
.partCenter .footer-try {
  margin-top: 30px;
  background: url(../img/normal/cdt_try_bg.jpg) no-repeat center;
  background-size: 100% 100%;
}