.page_main {
  width: 100%;
  margin-top: 100vh;
  background-color: #fff;
  position: relative;
  z-index: 5;
}


.common_title {
  text-align: center;
}

.common_title h2 {
  font-size: 43px;
  color: #272727;
  line-height: 1;
  margin-bottom: 24px;
  /* font-weight: 300; */
}

.common_title h4 {
  font-size: 30px;
  color: #767676;
  line-height: 1;
  /* font-weight: 300; */
}

.common_more {
  display: block;
  width: 280px;
  line-height: 70px;
  background: #f7f7f7;
  font-size: 20px;
  color: #666;
  margin: 0 auto;
  text-align: center;
  transition: all .4s;
}

.common_more:hover {
  background: #14315b;
  color: #fff;
}

.index_product,
.index_partner,
.index_experience {
  padding: 120px 0;
}

.index_product .main {
  margin-top: 60px;
}

.index_product .main ul {}

.index_product .main li {}

.index_product .main a {
  display: block;
  width: 100%;
}

.index_product .main a .cover {
  display: block;
  width: 100%;
  height: 440px;
  position: relative;
  z-index: 1;
}

.index_product .main a .cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.index_product .main a .cover span {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, .6);
  z-index: 2;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  opacity: 0;
  transition: all .4s;
}

.index_product .main a .cover h4 {
  font-size: 30px;
  font-weight: normal;
  margin-bottom: 15px;
}

.index_product .main a .cover h5 {
  font-size: 15px;
  /* font-weight: 300; */
}

.index_product .main a .title {
  font-size: 18px;
  text-align: center;
  color: #404040;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: normal;
  margin-top: 20px;
  transition: all .4s;
}

.index_product .main a:hover .cover span {
  opacity: 1;
}

.index_product .main a:hover .title {
  color: #14315b;
}

.index_product .swiper-pagination {
  position: static;
  width: 100%;
  text-align: center;
  margin-top: 42px;
}

.index_product .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  margin: 0 4px;
}

.index_product .swiper-pagination-bullet-active {
  background: #14315b;
}


.index_project {
  width: 100%;
  height: 792px;
  position: relative;
  z-index: 1;
}

.index_project .title {
  position: relative;
  z-index: 3;
  font-size: 50px;
  line-height: 80px;
  color: #fff;
  font-weight: normal;
  display: flex;
  align-items: center;
  flex-direction: column;
  top: 200px;
}

.index_project .picList {
  width: 100%;
  position: absolute;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 2;
}

.index_project .picList ul {
  width: 100%;
  height: 100%;
}

.index_project .picList ul li {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  z-index: 0;
}

.index_project .picList ul li.on {
  z-index: 10;
}

.index_project .picList ul li.oldOn {
  z-index: 9;
}

.index_project .picList ul li.toLeft {
  animation: picToLeft 0.5s linear alternate;
}

.index_project .picList ul li.toRight {
  animation: picToRight 0.5s linear alternate;
}

.index_project .picList .txt {
  width: 100%;
  position: absolute;
  top: 27%;
  left: 0;
  text-align: center;
  font-size: 2.60417vw;
  line-height: 2.70833vw;
  color: #fff;
  font-weight: 500;
  z-index: 20;
}

.index_project .picList .txt .t {
  display: none;
  text-shadow: 10px 5px 10px rgba(0, 0, 0, 0.2);
}

.index_project .picList .txt .t.on {
  display: block;
}

.index_project .boxBottom {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  position: absolute;
  bottom: 90px;
  z-index: 3;
}

.index_project .boxBottom .imgList ul {
  display: flex;
  align-items: flex-end;
  height: 80px;
}

.index_project .boxBottom .imgList ul li {
  width: 140px;
  height: 5px;
  box-sizing: border-box;
  border: 1px solid #fff;
  position: relative;
  float: left;
  margin: 0 6px;
  cursor: pointer;
  transform-origin: 100% 50%;
  transition: all 0.5s;
}

.index_project .boxBottom .imgList ul li .img {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.index_project .boxBottom .imgList ul li .t {
  width: 120%;
  text-align: center;
  position: absolute;
  bottom: -35px;
  color: #fff;
  font-size: 16px;
  line-height: 18px;
  /* font-weight: 200; */
  display: none;
  margin-left: -10%;
}

.index_project .boxBottom .imgList ul li:after {
  width: 0;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: #14315b;
  content: '';
}

.index_project .boxBottom .imgList ul li.on {
  height: 80px;
}

.index_project .boxBottom .imgList ul li.on .img {
  opacity: 1;
}

.index_project .boxBottom .imgList ul li.on .t {
  display: block;
}

.index_project .boxBottom .imgList ul li.lienAn:after {
  animation: myWidth 10s linear;
}

.index_project .boxBottom .btnsBox {
  margin-left: 20px;
  display: flex;
  align-items: center;
}

.index_project .boxBottom .btnsBox .a {
  width: 20px;
  height: 20px;
  background-size: auto 100%;
  background-repeat: no-repeat;
  background-position: center;
  float: left;
  transition: all .4s;
}

.index_project .boxBottom .btnsBox .a:hover {
  transform: scale(1.2);
}

.index_project .boxBottom .btnsBox .a.prev {
  background-image: url("/uploads/20240726/16d7264456c75a17b50e408d8140a55d.png");
}

.index_project .boxBottom .btnsBox .a.next {
  background-image: url("/uploads/20240726/09e480c7091c41503889cf4792c85661.png");
}

.index_project .boxBottom .btnsBox .num {
  font-size: 30px;
  line-height: 26px;
  height: 26px;
  color: #fff;
  float: left;
  font-family: Montserrat;
  font-weight: 400;
  margin: 0 20px;
}

.index_project .boxBottom .btnsBox .num i {
  font-size: 18px;
}



.index_partner .main {
  margin: 60px 0;
}

.index_partner .main ul {
  margin: -14px;
}

.index_partner .main li {
  float: left;
  width: 16.6%;
  padding: 14px;
}

.index_partner .main li a {
  display: block;
  width: 100%;
  height: 96px;
  position: relative;
  z-index: 1;
  border: 1px solid #dbdbdb;
}

.index_partner .main li img {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: auto;
  height: auto;
  max-width: 86%;
  max-height: 86%;
  z-index: 1;
  margin: auto;
  transition: all .4s;
}

.index_partner .main li a:hover img {
  max-width: 99%;
  max-height: 99%;
}

.index_production_base {
  background: url('/uploads/20240719/3834c7e75378a0682da6f4ce70c52ac3.jpg') no-repeat center;
  background-size: cover;
  width: 100%;
  min-height: 760px;
  padding: 60px 0;
}

.index_production_base .title {
  font-size: 60px;
  color: #fff;
  text-align: center;
  /* font-weight: 300; */
}

.index_production_base .main {
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.index_production_base .main li {
  margin-bottom: 15px;
}

.index_production_base .main li label {
  display: block;
  background: rgba(49, 115, 139, .6);
  font-size: 24px;
  color: #fff;
  width: 200px;
  text-align: center;
  line-height: 50px;
  cursor: pointer;
  user-select: none;
  transition: all .4s;
}

.index_production_base .main li label.active,
.index_production_base .main li label:hover {
  background: #14315b;
}

.index_production_base .main li img {
  display: none;
  position: absolute;
  width: 600px;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  z-index: 2;
}

.index_experience .main {
  margin-top: 60px;
}

.index_experience .main .years {
  position: relative;
  z-index: 1;
}

.index_experience .main .years .item {
  text-align: center;
  position: relative;
  z-index: 1;
  padding-top: 42px;
}

.index_experience .main .years .item::before {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background: #b5b4b4;
  position: absolute;
  top: 12px;
  left: 0;
  z-index: 1;
}

.index_experience .main .years .item>i {
  display: block;
  width: 13px;
  height: 13px;
  background-color: #b5b4b4;
  border-radius: 100%;
  border: 2px solid #dcdcdc;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 6px;
  z-index: 2;
  transition: all .4s;
  cursor: pointer;
  user-select: none;
}

.index_experience .main .years .item>i:hover {
  background-color: #e40a0a;
  border-color: #ff7171;
}

.index_experience .main .years .item>span {
  display: inline-block;
  font-size: 30px;
  color: #b5b4b4;
  transition: all .4s;
  cursor: pointer;
  user-select: none;
}

.index_experience .main .years .item>span:hover {
  color: #e40a0a;
}

.index_experience .main .years .swiper-slide-thumb-active .item>i {
  background-color: #e40a0a;
  border-color: #ff7171;
  transform: translateX(-50%) scale(1.5);
}

.index_experience .main .years .swiper-slide-thumb-active .item>span {
  color: #e40a0a;
}


.index_experience .main .years .arrow {
  cursor: pointer;
  user-select: none;
  width: 40px;
  height: 40px;
  background-size: 22px;
  background-repeat: no-repeat;
  background-position: center;
  background-color: #000;
  border-radius: 100%;
  position: absolute;
  z-index: 2;
  top: -7px;
  transition: all .4s;
}

.index_experience .main .years .arrow:hover {
  background-color: #14315b;
}

.index_experience .main .years .arrow-prev {
  background-image: url("/uploads/20240726/16d7264456c75a17b50e408d8140a55d.png");
  left: -40px;
}

.index_experience .main .years .arrow-next {
  background-image: url("/uploads/20240726/09e480c7091c41503889cf4792c85661.png");
  right: -40px;
}


.index_experience .main .contents {
  margin-top: 80px;
}


.index_experience .main .contents .item {
  font-size: 0;
}

.index_experience .main .contents .cont {
  display: inline-block;
  vertical-align: middle;
  width: 50%;
  padding-right: 300px;
}

.index_experience .main .contents .cont>h4 {
  font-size: 42px;
  color: #14315b;
  margin-bottom: 40px;
}

.index_experience .main .contents .cont>span {
  font-size: 18px;
  color: #333;
  line-height: 38px;
}

.index_experience .main .contents .img {
  display: inline-block;
  vertical-align: middle;
  width: 50%;
}

@media (max-width: 1700px) and (min-width: 1300px) {
  .common_title h2 {
    font-size: 32px;
    margin-bottom: 15px;
  }

  .common_title h4 {
    font-size: 22px;
  }

  .common_more {
    width: 200px;
    font-size: 16px;
    line-height: 58px;
  }

  .index_product,
  .index_partner,
  .index_experience {
    padding: 70px 0;
  }

  .index_product .main a .title {
    font-size: 16px;
  }

  .index_product .main a .cover {
    height: 340px;
  }

  .index_project {
    height: 630px;
  }

  .index_project .title {
    font-size: 40px;
    line-height: 60px;
    top: 140px;
  }

  .index_project .picList {
    height: 100%;
  }

  .index_project .boxBottom {
    bottom: 70px;
  }

  .index_project .boxBottom .imgList ul li {
    width: 112px;
    height: 4px;
  }

  .index_project .boxBottom .imgList ul li.on {
    height: 68px;
  }

  .index_project .boxBottom .imgList ul li .t {
    bottom: -30px;
    font-size: 12px;
    line-height: 20px;
  }

  .index_project .boxBottom .btnsBox .num {
    font-size: 24px;
  }

  .index_project .boxBottom .btnsBox .num i {
    font-size: 16px;
  }

  .index_partner .main {
    margin: 40px 0;
  }

  .index_partner .main ul {
    margin: -8px;
  }

  .index_partner .main li {
    padding: 8px;
  }

  .index_partner .main li a {
    height: 84px;
  }

  .index_production_base .title {
    font-size: 40px;
  }

  .index_production_base .main li label {
    font-size: 18px;
    width: 160px;
  }

  .index_experience .main {
    margin-top: 40px;
  }

  .index_experience .main .years .arrow {
    width: 28px;
    height: 28px;
    background-size: 18px;
    top: -2px;
  }

  .index_experience .main .years .arrow-prev {
    left: -28px;
  }

  .index_experience .main .years .arrow-next {
    right: -28px;
  }

  .index_experience .main .years .item {
    padding-top: 34px;
  }

  .index_experience .main .years .item>span {
    font-size: 20px;
  }

  .index_experience .main .years .swiper-slide-thumb-active .item>i {
    transform: translateX(-50%) scale(1.2);
  }

  .index_experience .main .contents {
    margin-top: 50px;
  }

  .index_experience .main .contents .cont {
    padding-right: 150px;
  }

  .index_experience .main .contents .cont>h4 {
    font-size: 32px;
    margin-bottom: 30px;
  }

  .index_experience .main .contents .cont>span {
    font-size: 16px;
    line-height: 32px;
  }
}

@media (max-width: 1300px) {
  .page_main {
    margin-top: 30vh;
  }

  .common_title h2 {
    font-size: 30px;
    margin-bottom: 15px;
  }

  .common_title h4 {
    font-size: 20px;
  }

  .common_more {
    font-size: 16px;
    width: 180px;
    line-height: 50px;
  }

  .index_product,
  .index_partner,
  .index_experience {
    padding: 50px 0;
  }

  .index_product .main {
    margin-top: 40px;
    padding: 0 20px;
  }

  .index_product .main ul {
    margin: 0;
  }

  .index_product .main li {
    width: 50%;
    margin-bottom: 20px;
  }

  .index_product .main a .cover {
    height: 460px;
  }

  .index_product .main a .title {
    margin-top: 10px;
    font-size: 15px;
  }

  .index_project {
    height: 250px;
  }

  .index_project .title {
    font-size: 24px;
    line-height: 40px;
    top: 80px;
  }

  .index_project .boxBottom {
    bottom: 60px;
  }

  .index_project .boxBottom .imgList {
    display: none;
  }

  .index_partner .main {
    margin: 40px 0;
  }

  .index_partner .main ul {
    margin: 0;
  }

  .index_partner .main li {
    padding: 5px;
    width: 33.3%;
  }

  .index_production_base {
    padding: 40px 0;
    min-height: 620px;
  }

  .index_production_base .main {
    margin-top: 40px;
  }

  .index_production_base .title {
    font-size: 30px;
  }

  .index_production_base .main ul {
    font-size: 0;
    text-align: center;
  }

  .index_production_base .main li {
    display: inline-block;
    vertical-align: middle;
    margin: 4px;
  }

  .index_production_base .main li img {
    width: 320px;
    top: 168px;
  }

  .index_production_base .main li label {
    width: 110px;
    font-size: 14px;
    line-height: 40px;
  }

  .index_experience .main {
    margin-top: 40px;
    padding: 0 50px;
  }

  .index_experience .main .years .item {
    padding-top: 32px;
  }

  .index_experience .main .years .item>span {
    font-size: 14px;
  }

  .index_experience .main .years .item>i {
    width: 12px;
    height: 12px;
  }

  .index_experience .main .years .swiper-slide-thumb-active .item>i {
    transform: translateX(-50%) scale(1.2);
  }

  .index_experience .main .contents {
    margin-top: 50px;
  }

  .index_experience .main .contents .cont {
    width: 100%;
    padding: 0 16px;
  }

  .index_experience .main .contents .cont>h4 {
    font-size: 24px;
    margin-bottom: 20px;
  }

  .index_experience .main .contents .cont>span {
    font-size: 15px;
    line-height: 28px;
  }

  .index_experience .main .contents .img {
    width: 94%;
    display: block;
    margin: 20px auto 0;
  }

}