.headline {
  margin-bottom: 38px;
}
.headline h1 {
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 400;
  font-size: 32px;
  color: #333333;
  text-align: center;
}
.headline h2 {
  margin-top: 40px;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: bold;
  font-size: 20px;
  color: #3154C3;
  text-align: center;
}
.headline h3 {
  margin-top: 30px;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: bold;
  font-size: 16px;
  color: #333333;
  line-height: 28px;
  text-align: center;
}
.banner_nav {
  max-width: 1920px;
  min-width: 1200px;
  height: 82px;
  margin: 0 auto;
  background: url(../images/banner.png) no-repeat top center / 1920px 675px;
}
.banner_nav .nav {
  padding-top: 30px;
  display: flex;
  align-items: center;
}
.banner_nav .nav h1 {
  margin-right: 60px;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: bold;
  font-size: 22px;
  color: #FFFFFF;
}
.banner_nav .nav ul {
  display: flex;
}
.banner_nav .nav ul li {
  position: relative;
  margin: 0 20px;
}
.banner_nav .nav ul li a {
  display: block;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 400;
  font-size: 16px;
  color: #FFFFFF !important;
}
.banner_nav .nav ul .on::after {
  content: "";
  display: block;
  width: 30px;
  height: 2px;
  border-radius: 5px;
  background-color: #fff;
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
}
.banner_nav .more {
  margin-top: 356px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 154px;
  height: 49px;
  background: #EBEDFB;
  border-radius: 25px 25px 25px 25px;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 500;
  font-size: 18px;
  color: #2652CA !important;
}
.banner_nav .more img {
  position: relative;
  left: 4px;
  margin-left: 4px;
  display: block;
  width: 20px;
  height: 17px;
  -webkit-animation: slide-arrow-data-v-685bef5c 0.7s ease-in-out infinite;
  animation: slide-arrow-data-v-685bef5c 0.7s ease-in-out infinite;
}
.part1 {
  padding: 66px 0 30px;
}
.part1 .layout ul li {
  float: left;
  margin-right: 42px;
  border-radius: 40px 40px 40px 40px;
  overflow: hidden;
  border: 2px solid #4F71EE;
}
.part1 .layout ul li:nth-child(2) .bottom a,
.part1 .layout ul li:nth-child(3) .bottom a {
  margin-bottom: 17px;
}
.part1 .layout ul li:nth-child(3n) {
  margin-right: 0;
}
.part1 .layout ul li:hover .top img {
  transform: scale(1.1);
}
.part1 .layout ul li .top {
  width: 362px;
  height: 232px;
  background: #F1F8FF;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.part1 .layout ul li .top img {
  display: block;
  width: 170px;
  flex-shrink: 0;
  transition: all .3s;
}
.part1 .layout ul li .top p {
  margin-top: 10px;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 500;
  font-size: 26px;
  color: #3154C3;
}
.part1 .layout ul li .bottom {
  width: 362px;
  height: 322px;
  border-top: 0;
  border-radius: 0px 0px 40px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.part1 .layout ul li .bottom a {
  display: inline-block;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 400;
  font-size: 18px;
  color: #3154C3;
  text-align: center;
  margin-bottom: 10px;
}
.part1 .layout ul li .bottom hr {
  display: block;
  width: 60px;
  height: 2px;
  background: #3154C3;
  border-radius: 1px 1px 1px 1px;
  border: 0;
}
.part1 .layout ul li .bottom p {
  margin-top: 10px;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 500;
  font-size: 24px;
  color: #3154C3;
}
.part2 {
  padding: 30px 0 40px;
}
.part2 .layout ul {
  display: flex;
  justify-content: space-between;
}
.part2 .layout ul li {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.part2 .layout ul li:hover img {
  transform: translateY(-10px);
}
.part2 .layout ul li img {
  display: block;
  flex-shrink: 0;
  transition: all .3s;
}
.part2 .layout ul li:nth-child(1) img {
  width: 65px;
}
.part2 .layout ul li:nth-child(2) img {
  width: 74px;
}
.part2 .layout ul li:nth-child(3) img {
  width: 71px;
}
.part2 .layout ul li:nth-child(4) img {
  width: 74px;
}
.part2 .layout ul li:nth-child(5) img {
  width: 82px;
}
.part2 .layout ul li:nth-child(6) img {
  width: 75px;
}
.part2 .layout ul li:nth-child(7) img {
  width: 92px;
}
.part2 .layout ul li p {
  margin-top: 19px;
  margin-bottom: 28px;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 400;
  font-size: 22px;
  color: #333333;
}
.part2 .layout ul li a {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}
.part2 .layout ul li a i {
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 8px;
  background: #3154C3;
}
.part2 .layout ul li a p {
  margin: 0;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 400;
  font-size: 18px;
  color: #333333;
}
.part3 {
  padding: 20px 0;
  background: url(../images/ptfw_part3_background.png) no-repeat center / 100% 100%;
}
.part3 .layout {
  padding: 34px 0 25px;
  background-color: rgba(255, 255, 255, 0.6);
}
.part3 .layout .part3_1 .headline h2 {
  margin: 0;
}
.part3 .layout .part3_1 img {
  display: block;
  width: 900px;
  margin: 0 auto;
}
.part3 .layout .part3_2 .box {
  display: flex;
  align-items: center;
  justify-content: center;
}
.part3 .layout .part3_2 .box img {
  display: block;
  width: 300px;
}
.part3 .layout .part3_2 .box .content_1 {
  margin-right: 20px;
}
.part3 .layout .part3_2 .box .content_2 {
  width: 256px;
  margin-right: 40px;
}
.part3 .layout .part3_2 .box ul li {
  margin-bottom: 20px;
}
.part3 .layout .part3_2 .box ul li a {
  display: flex;
  align-items: center;
}
.part3 .layout .part3_2 .box ul li a img {
  display: block;
  width: 20px;
  height: 20px;
  margin-right: 10px;
}
.part3 .layout .part3_2 .box ul li a p {
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 500;
  font-size: 24px;
  color: #333333;
}
.part4 {
  padding: 60px 0 70px;
}
.part4 .layout ul {
  display: flex;
  justify-content: space-between;
}
.part4 .layout ul li {
  width: 291px;
  height: 269px;
  background: #4F71EE;
  /* 回退颜色 */
  background: radial-gradient(circle at right, #4f71ee 0%, #3154c3 100%);
  border-radius: 12px 12px 12px 12px;
}
.part4 .layout ul li:hover a img {
  transform: scale(1.1);
}
.part4 .layout ul li a {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.part4 .layout ul li a img {
  display: block;
  width: 180px;
  flex-shrink: 0;
  transition: all .3s;
}
.part4 .layout ul li a p {
  margin-top: 20px;
  font-family: SourceHanSansCN, SourceHanSansCN;
  font-weight: 500;
  font-size: 24px;
  color: #FFFFFF;
  text-align: center;
}