@media screen and (min-width: 786px) {
  main {
    background: #f0f0f0;
  }
  .part1 {
    width: 100%;
    position: relative;
  }
  .part1-img {
    width: 300px;
    margin: 50px auto -50px;
    display: block;
  }
  .part1-title {
    margin: 50px auto;
    width: 420px;
    font-size: 52px;
    padding: 10px 0;
    font-weight: 500;
    border-bottom: 1px solid #9b9b9b;
  }
  .intro {
    margin: 100px auto 80px;
    display: flex;
    justify-content: center;
  }
  .part-img {
    width: 700px;
    display: block;
    margin: 0 auto;
    padding: 100px 0;
  }
  .intro-item {
    border-left: 2px solid #c1c1c1;
    margin: 0 60px;
    padding-left: 20px;
    height: 110px;
  }
  .intro-item:last-child {
    height: 145px;
  }
  .intro-left, .intro-right {
    background-image: linear-gradient(to right, #f0f0f0, #dcdcdc, #f0f0f0);
    text-align: left;
    padding: 5px 0 25px;
    color: #747474;
    margin-bottom: 50px;
    position: relative;
    text-align: center;
  }
  .intro-left h2, .intro-right h2 {
    font-weight: 500;
    font-size: 28px;
  }
  .intro-left {
    width: 70%;
    left: 0;
  }
  .intro-right {
    width: 70%;
    margin-left: auto;
  }
  .top, .middle {
    color: #c1c1c1;
    line-height: 0px;
  }
  .middle {
    font-size: 32px;
    font-weight: 600;
  }
  .bottom {
    font-size: 20px;
  }
  .middle-banner {
    width: 100%;
    height: 300px;
    background: url(../images/banner2.jpg) no-repeat center center;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .banner-title {
    font-size: 48px;
    text-align: center;
    color: #fff;
  }
  .part2 {
    margin-bottom: 0px;
  }
  .rebuild-list {
    display: flex;
    justify-content: space-between;
    width: 900px;
    text-align: center;
    align-items: flex-end;
    margin: 30px auto 0;
  }
  .rebuild-item img {
    width: 200px;
  }
  .rebuild-item:nth-child(3) img {
    width: 250px;
  }
  .rebuild-item p {
    font-size: 20px;
    font-weight: 600;
    color: #e5552d;
  }
  .part2-title {
    width: 900px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #000;
    position: relative;
    padding: 10px 0;
  }
  .part2-title div:nth-child(1) {
    color: #b7b7b7;
    font-size: 28px;
    margin-top: 20px;
  }
  .part2-title div:nth-child(2) {
    font-size: 58px;
    font-weight: 600;
    margin-left: -200px;
  }
  .part2-title div:nth-child(3) {
    top: 5px;
    position: absolute;
    right: 300px;
  }
  .part2-title div:last-child {
    color: #b7b7b7;
    font-size: 20px;
  }
  .part2-title .top {
    margin-top: 30px;
    font-size: 14px;
    color: red;
    font-weight: 600;
  }
  .part2-title .bottom {
    text-align: center;
    font-size: 24px;
    margin-top: -5px;
    font-weight: 600;
  }
  .swiper-container3 {
    margin-top: 50px;
    width: 100%;
    overflow: hidden;
    padding-bottom: 80px;
  }

	 .swiper-container3 .swiper-slide {
    width: 70% !important;
  }
	
	
	

	
	
	
  .part2-img {
    display: block;
    margin: 0 auto;
    padding: 50px 0;
    width: 900px;
  }
  .papa-swiper-container {
    margin: 50px auto;
    overflow: hidden;
    width: 100%;
  }
  .papa-swiper-container .swiper-slide {
    /* margin: 50px; */
    display: flex;
    justify-content: center;
    width: 300px;
  }
  .papa-info {
    margin-left: 20px;
  }
  .papa-info p {
    margin-top: -10px;
    font-size: 14px;
    line-height: 20px;
    width: 230px;
  }
  .papa-swiper-container .swiper-slide img {
    width: 140px;
    height: 140px;
    display: block;
  }
}
@media screen and (max-width: 786px) {
  main {
    background: #f0f0f0;
    overflow: hidden;
  }
  .part1-title {
    margin: 50px auto 10px;
    font-size: 28px;
    width: 60%;
    text-align: center;
    padding: 10px 0;
    font-weight: 600;
    border-bottom: 1px solid #9b9b9b;
  }
  .part1-img {
    width: 200px;
    margin: 20px auto -30px;
    display: block;
  }
  .intro {
    margin: 30px auto 30px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
  }
  .part-img {
    width: 100%;
    margin: 50px auto;
    display: block;
  }
  .intro-item {
    /* border-left: 2px solid #c1c1c1; */
    margin: 0 60px;
    /* padding-left: 20px; */
  }
  .intro-item:last-child {
    height: 145px;
  }
  .intro-left, .intro-right {
    background-image: linear-gradient(to right, #f0f0f0, #dcdcdc, #f0f0f0);
    text-align: left;
    padding: 5px 0 25px;
    color: #747474;
    margin-bottom: 50px;
    position: relative;
    text-align: left;
    width: 100%;
  }
  .swiper-container .swiper-pagination-bullet, .swiper-container2 .swiper-pagination-bullet, .swiper-container3 .swiper-pagination-bullet {
    border-radius: 0;
    margin: 0 10px !important;
    width: 15px;
    height: 5px;
    border-radius: 50px;
    background: #666;
  }
  .swiper-container .swiper-pagination-bullet-active, .swiper-container2 .swiper-pagination-bullet-active, .swiper-container3 .swiper-pagination-bullet-active {
    background: #0c64fb;
  }
  .intro-left h2, .intro-right h2 {
    font-weight: 600;
    font-size: 18px;
    padding: 0 50px;
  }
  .intro-left {
    width: 100%;
  }
  .intro-left div, .intro-right div {
    padding: 0 50px;
    font-size: 12px;
  }
  .intro-right {
    width: 100%;
  }
  .part2 {
    margin-bottom: 0px;
  }
  .rebuild-list {
    display: flex;
    justify-content: space-between;
    text-align: center;
    align-items: flex-end;
    margin: 30px auto 0;
  }
  .rebuild-item {
    width: 100%;
    margin-bottom: 50px;
  }
  .rebuild-item img {
    width: 80px;
  }
  .rebuild-item:nth-child(3) img {
    width: 120px;
  }
  .rebuild-item p {
    font-size: 12px;
    font-weight: 600;
    color: #e5552d;
  }
  .part2-title {
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 10px 0;
  }
  .part2-title div:nth-child(1) {
    color: #b7b7b7;
    font-size: 28px;
    margin-top: 20px;
    width: 100%;
    text-align: center;
  }
  .part2-title div:nth-child(2) {
    font-size: 40px;
    font-weight: 600;
    width: 45%;
    text-align: right;
    margin: 20px 0px 20px 0;
    /* margin: 20px 0 20px 50px; */
  }
  .part2-title div:nth-child(3) {
    width: 45%;
    margin: 30px 0 20px 0px;
  }
  .part2-title div:last-child {
    color: #b7b7b7;
    font-size: 18px;
    padding: 0 50px;
    width: 100%;
  }
  .part2-title .top {
    font-size: 12px;
    color: red;
    font-weight: 600;
    /* margin: 30px 70px 0 0; */
    margin: 0 0 5px 0;
  }
  .part2-title .bottom {
    /* margin: 10px 70px 20px 0;
    text-align: center; */
    font-size: 20px;
    font-weight: 600;
    margin: 0;
  }
  .swiper-container, .swiper-container2, .swiper-container3 {
    margin-top: 20px;
    width: 100%;
    overflow: hidden;
    padding-bottom: 50px;
  }
  .swiper-container .swiper-slide {
    width: 100%;
  }
  .swiper-slide img {
    
    display: block;
  }
  .part2-img {
    display: block;
    margin: 0 auto;
    padding: 50px 0;
    width: 100%;
  }
  .papa-swiper-container {
    margin: 0 auto;
    width: 100%;
    overflow: hidden;
  }
  .papa-swiper-container .swiper-slide {
    margin: 50px;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .papa-swiper-container .swiper-slide img {
    width: 100px;
    height: 100px;
    display: block;
  }
  .papa-info {
    margin-left: 20px;
  }
  .papa-info p {
    margin-top: -10px;
    font-size: 14px;
    line-height: 20px;
    width: 200px;
    padding: 0;
  }
}