title.page_bar {
  width: 100%;
  margin-top: 3.3%;
}

.page_products>.tit_top {
  width: 653px;
  font-weight: 400;
  font-size: 15px;
  color: #333333;
  line-height: 1.5;
  margin: 70px auto 44px;
}

.page_products .list_main {
  display: flex;
  flex-wrap: wrap;
}

.page_products .list_main .item {
  --item-margin-lr: 63px;
  --item-margin-top: 20px;
  width: calc((100% - var(--item-margin-lr) * 3) / 4);
  margin-left: var(--item-margin-lr);
  margin-top: var(--item-margin-top);
}

.page_products .list_main .item:nth-child(4n + 1) {
  margin-left: 0;
}

.page_products .list_main .item:nth-child(-n + 4) {
  margin-top: 0;
}

.page_products .list_main .item .img {
  padding-bottom: 100%;
}

.page_products .list_main .item .title {
  height: 58px;overflow: hidden;
}

.page_products .list_main .item .title a {
  font-weight: 400;
  font-size: 18px;
  color: #333333;
  margin: 12px 0 10px;
}

.page_products .list_main .item .desc {
  font-weight: 400;
  color: #666666;
  max-height: 78px;
  overflow: auto; display: none;
}

.page_products .quistion {
  margin-top: 3.3%;
  padding-bottom: 3%;
}

.page_products .quistion .title {
  font-family: "Bold";
  font-size: 20px;
  color: #000000;
  line-height: 24px;
}

.page_products .quistion .tip {
  font-weight: 400;
  color: #666666;
  line-height: 24px;
  margin: 23px 0 15px;
}

.page_products .quistion>ul li {
  color: #666666;
}

.page_products .quistion>ul li span {
  color: #333333;
}

.page_products .listimg {
  flex-wrap: wrap;
}

.page_products .listimg.com_img_odd .img {
  order: 2;
}

.page_products .listimg .img {
  width: 50%;
  height: 450px;
}

.page_products .listimg .detail {
  flex: 1;
  margin-left: 43px;
  padding-right: 60px;
}

.page_products .listimg .detail .tit_top {
  font-weight: 400;
  font-size: 30px;
  color: var(--color-main);
  max-height: 98px;
  overflow: auto;
}

.page_products .listimg .detail .tit {
  font-weight: 400;
  color: #333333;
  line-height: 14px;
  margin: 22px 0 40px;
}

.page_products .listimg .detail .title {
  font-weight: 400;
  font-size: 24px;
  color: #333333;
  line-height: 47px;
}

.page_products .listimg .detail .desc {
  font-weight: 400;
  font-size: 16px;
  color: #333333;
  line-height: 32px;
  /* max-height: 192px;
  overflow: auto; */
}

.about_us_box {
  padding-top: 3.6%;
  padding-bottom: 4.3%;
}

.about_us_box .title {
  margin-bottom: 67px;
  font-weight: 500;
  font-size: 40px;
  color: var(--color-main);
  line-height: 57px;
  position: relative;
}

.about_us_box .title::after {
  content: "";
  display: block;
  width: 47px;
  height: 2px;
  background: var(--color-main);
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  position: absolute;
}

.about_us_box .about_us_box_swiper .swiper-wrapper {
  padding-bottom: 30px;
}

.about_us_box .about_us_box_swiper .swiper-slide {
  font-weight: 500;
  line-height: 32px;
  color: #fff;
  background: var(--color-main);
  padding: 44px 40px 80px 36px;
  position: relative;
}

.about_us_box .about_us_box_swiper .swiper-slide::after {
  content: "";
  width: 0;
  height: 0;
  display: block;
  border-top: 20px solid var(--color-main);
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  position: absolute;
  left: 35px;
  bottom: -16px;
  transform: rotate(132deg);
}

@media screen and (max-width: 1366px) {
  .page_products .list_main .item {
    --item-margin-lr: 40px;
    --item-margin-top: 18px;
    width: calc((100% - var(--item-margin-lr) * 2) / 3);
  }

  .page_products .list_main .item:nth-child(4n + 1) {
    margin-left: var(--item-margin-lr);
  }

  .page_products .list_main .item:nth-child(-n + 4) {
    margin-top: var(--item-margin-top);
  }

  .page_products .list_main .item:nth-child(3n + 1) {
    margin-left: 0;
  }

  .page_products .list_main .item:nth-child(-n + 3) {
    margin-top: 0;
  }

  .page_products .listimg .detail {
    padding-right: 30px;
  }

  .page_products .listimg .detail .tit_top {
    font-size: 25px;
  }

  .page_products .listimg .detail .tit {
    margin: 5px 0 10px;
  }

  .about_us_box>ul {
    flex-wrap: wrap;
  }

  .about_us_box>ul li {
    width: 48%;
  }

  .about_us_box>ul li:nth-child(2) {
    margin: 0;
  }

  .about_us_box>ul li:nth-child(3) {
    margin: 5% 0 0;
    width: 100%;
  }

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

@media screen and (max-width: 950px) {
  .page_bar {
    margin: 8% 0;
  }

  .page_products>.tit_top {
    width: 100%;
    margin: 5% 0 3%;
  }

  .page_products .list_main .item {
    --item-margin-lr: 20px;
    width: calc((100% - var(--item-margin-lr) * 1) / 2);
  }

  .page_products .list_main .item:nth-child(3n + 1) {
    margin-left: var(--item-margin-lr);
  }

  .page_products .list_main .item:nth-child(-n + 3) {
    margin-top: var(--item-margin-top);
  }

  .page_products .list_main .item:nth-child(2n + 1) {
    margin-left: 0;
  }

  .page_products .list_main .item:nth-child(-n + 2) {
    margin-top: 0;
  }

  .page_products .quistion {
    padding-bottom: 0;
  }

  .page_products .listimg {
    margin-top: 5%;
  }

  .page_products .listimg:nth-child(odd) .img {
    order: unset;
  }

  .page_products .listimg .img {
    width: 100%;
    height: 0;
    padding-bottom: 70%;
  }

  .page_products .listimg .detail {
    width: 100%;
    padding: 0;
    margin: 0;
  }

  .page_products .listimg .detail .tit_top {
    margin: 5% 0 3%;
  }

  .page_products .listimg .detail .title {
    margin: 3% 0;
  }

  .page_products .listimg .detail .desc {
    max-height: unset;
    overflow: unset;
  }

  .about_us_box {
    padding-top: 3%;
    padding-bottom: 30px;
  }

  .about_us_box .title {
    margin-bottom: 5%;
    font-size: 24px;
  }
}

@media screen and (max-width: 768px) {
  .page_products>.tit_top {
    margin: 7% 0 0;
  }

  .page_products .list_main .item {
    --item-margin-lr: 0;
    width: 100% !important;
    margin: 30px 0 0 !important;
  }

  .page_products .list_main .item .title,
  .page_products .list_main .item .desc {
    height: unset;
    max-height: unset;
    overflow: unset;
  }

  .about_us_box>ul li {
    width: 100% !important;
    margin: 60px 0 0 !important;
  }

  .about_us_box>ul li:first-child {
    margin: 0 !important;
  }
}