.page_banner::before {
  width: 100%;
  opacity: 0.2;
}
.page_banner p {
  max-width: 54.9rem;
}
.page_banner .box {
  padding: 0.4% 0 0;
}
.about_intro {
  overflow: hidden;
  padding: 14.8rem 0 15.2rem;
}
.about_intro .head {
  flex: 1;
  width: 100%;
  max-width: 56rem;
}
.about_intro .head .subtitle {
  margin-bottom: 1.8rem;
}
.about_intro p {
  margin-top: 2.2rem;
}
.about_intro .image {
  width: 47.08955224%;
  padding-left: 2.01492537%;
}
.about_intro .image .img {
  border-radius: 1.4rem;
  padding-bottom: 89.71807629%;
}
.about_intro .image .f_box {
  position: absolute;
  z-index: 2;
  background-color: var(--primary);
  color: #fff;
  left: 0;
  bottom: 4.991%;
  border-radius: 0.8rem;
  min-width: 31.7%;
  padding: 2.5rem 2.8rem 2.3rem;
}
.about_intro .image .f_box strong {
  font-size: 3rem;
  font-weight: 700;
}
.about_intro .image .f_box p {
  font-size: 1.4rem;
  margin-top: 0.4rem;
  padding-left: 0.21em;
  font-weight: 400;
  letter-spacing: 0.093em;
}
.about_intro .nums_container {
  margin-top: 9rem;
}
.about_background {
  padding: 16.3rem 0 17rem;
}
.about_background .head {
  flex: 1;
  width: 100%;
  max-width: 60rem;
}
.about_background p {
  margin-top: 2.1rem;
}
.about_background p + p {
  margin-top: 3.2rem;
}
.about_background .card {
  width: 47.8358209%;
  background-color: #fff;
  border: 1px solid #e8e8e8;
  box-shadow: 0 0 1rem rgba(219, 203, 202, 0.45);
  border-radius: 1.4rem;
  padding: 2.6119403% 1.4925373% 2.5373134% 3.7313433%;
  margin-top: 0.6rem;
}
.about_background .card h3 {
  display: flex;
  align-items: center;
  font-size: 3rem;
  font-weight: 500;
  gap: 1rem;
  padding-left: 1px;
}
.about_background .card h3::before {
  display: inline-block;
  content: '';
  flex-shrink: 0;
  width: 0.133em;
  height: 0.9333em;
  background-color: var(--primary);
}
.about_background .card p {
  line-height: 3.2rem;
  color: var(--text);
  margin-top: 2.2rem;
}
.about_background .card ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.2rem 10.935%;
  margin-top: 5rem;
  padding-left: 2px;
}
.about_background .card ul strong {
  font-size: 1.3rem;
  color: var(--secondary);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.07692em;
}
.about_background .card ul p {
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--title);
  line-height: normal;
  margin-top: 0.5rem;
}
.page_category {
  padding-bottom: 7.5rem;
  padding-top: 13.7rem;
}
.about_manufacturing {
  padding: 7.4rem 0 15.1rem;
}
.about_manufacturing .img {
  width: 43.28358209%;
  --h: 100%;
  border-radius: 1.4rem;
}
.about_manufacturing .img + .rt {
  max-width: 70.3rem;
}
.about_manufacturing .rt {
  flex: 1;
  width: 100%;
  padding-bottom: 0.8rem;
}
.about_manufacturing .head .subtitle {
  margin-bottom: 1.9rem;
}
.about_manufacturing p {
  margin-top: 2.4rem;
}
.about_manufacturing .features {
  margin-top: 4.6rem;
}
.about_manufacturing .features ul {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem 5.3%;
}
.about_manufacturing .features li {
  flex: 1;
}
.about_manufacturing .features li strong {
  font-size: 4rem;
  font-weight: 600;
  color: var(--primary);
}
.about_manufacturing .features li p {
  font-size: 2rem;
  font-weight: 500;
  color: #1a1a1a;
  margin-top: 0.5rem;
}
.about_advantages {
  position: relative;
  background-image: linear-gradient(to bottom, #f4f4f4, #f7f7f7 72%, #f6f6f6);
  padding: 13.8rem 0 15rem;
}
.about_advantages p {
  margin-top: 2.3rem;
}
.about_advantages .items {
  margin-top: 6.5rem;
}
.about_advantages .items ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(35rem, 100%), 1fr));
  gap: 3rem 2.20149254%;
}
.about_advantages .items .active .item::before {
  opacity: 1;
}
.about_advantages .items .active .item .desc {
  opacity: 1;
  transform: translateY(0);
}
.about_advantages .items .active .item .icon {
  animation: ant_op 0.4s ease-in-out forwards;
}
.about_advantages .items .active .item .btn_s {
  opacity: 0;
}
.about_advantages .item {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  height: 100%;
  --radius: 1.2rem;
  border-radius: var(--radius);
  border: 1px solid #cacaca;
  padding: 3.3rem 4rem 6.1rem 3.9rem;
}
.about_advantages .item::before {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  content: '';
  width: calc(100% - 2px);
  height: calc(100% - 2px);
  border-radius: var(--radius);
  border: 2px solid var(--primary);
  transition: all 0.3s;
  opacity: 0;
  pointer-events: none;
  z-index: -1;
  background-color: #fff;
  box-shadow: var(--shadow);
}
.about_advantages .item .metas {
  font-size: 1.4rem;
  color: var(--secondary);
  text-transform: uppercase;
}
.about_advantages .item .title {
  font-size: 2.6rem;
  font-weight: 600;
  border-bottom: 1px solid #cacaca;
  margin-top: 1.1rem;
  padding-bottom: 1.6rem;
}
.about_advantages .item .desc {
  line-height: 2.6rem;
  color: rgba(96, 96, 96, 0.85);
  margin-top: 2.6rem;
  transition: all 0.3s;
  opacity: 0;
  transform: translateY(1rem);
}
.about_advantages .item .icon {
  position: absolute;
  width: 6rem;
  height: 6rem;
  left: 0;
  top: calc(100% - 6rem - 7.5rem);
  margin: 3.7rem 3.9rem 3.9rem 3.9rem;
}
.about_advantages .item .btn_s {
  position: absolute;
  right: 0;
  bottom: 0;
  background-color: var(--title) !important;
  margin: 3.9rem;
}
.about_advantages .item .btn_s::after {
  filter: contrast(0) brightness(2);
}
.about_advantages .item .btn_s:hover {
  background-color: var(--primary);
}
@keyframes ant_op {
  0% {
    left: 0;
    top: calc(100% - 6rem - 7.5rem);
    opacity: 1;
  }
  50% {
    left: 0;
    top: calc(100% - 6rem - 7.5rem);
    opacity: 0;
  }
  60% {
    left: calc(82% - 6rem);
    top: 1rem;
    opacity: 0;
  }
  100% {
    left: calc(82% - 6rem);
    top: 0;
    opacity: 1;
  }
}
.about_advantages .float_mask .img1 {
  left: -10.9375%;
  top: -1.3307985%;
}
.about_advantages .float_mask .img2 {
  right: -7.6041667%;
  bottom: -7.6045627%;
  max-width: 35.2rem;
}
.about_certifications {
  padding: 13.7rem 0 13rem;
}
.about_certifications p {
  margin-top: 3.4rem;
}
.about_certifications .swiper_btns {
  margin-bottom: 1rem;
}
.about_certifications .about_certifications_swiper {
  margin-top: 4.3rem;
}
.about_certifications .about_certifications_swiper .swiper-slide {
  max-width: 207px;
}
.about_certifications .item .pic {
  position: relative;
  width: 100%;
  max-width: 20.7rem;
  margin: 0 auto;
  box-shadow: 0 0 1rem rgba(219, 203, 202, 0.45);
}
.about_certifications .item .pic .img.img_cv {
  padding-bottom: 142.99516908%;
}
.about_certifications .item .pic .img.img_ct {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100.96618357%;
  height: auto;
}
.about_certifications .item .title {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 450;
  margin-top: 2.7rem;
}
@media screen and (min-width: 769px) and (max-width: 1024px) {
  .about_manufacturing .features li strong {
    font-size: 3rem;
  }
}
@media screen and (max-width: 768px) {
  .about_intro {
    padding: 50px 0;
  }
  .about_intro .head .subtitle {
    margin-bottom: 8px;
  }
  .about_intro .image .img {
    border-radius: 10px;
  }
  .about_intro .image .f_box {
    padding: 14px;
  }
  .about_intro .image .f_box strong {
    font-size: 16px;
  }
  .about_intro .image .f_box p {
    font-size: 13px;
    padding-left: 0;
    margin-top: 5px;
  }
  .about_intro .nums_container {
    margin-top: 20px;
  }
  .about_background {
    padding: 50px 0;
  }
  .about_background .card {
    margin: 0;
    border-radius: 10px;
    padding: 20px;
    width: 50%;
  }
  .about_background .card h3 {
    font-size: 18px;
    padding-left: 0;
    gap: 8px;
  }
  .about_background .card p {
    line-height: 1.5;
    margin-top: 12px;
  }
  .about_background .card ul {
    margin-top: 20px;
    gap: 20px;
  }
  .about_background .card ul strong {
    font-size: 13px;
  }
  .about_background .card ul p {
    font-size: 16px;
    margin-top: 5px;
  }
  .page_category {
    padding: 50px 0 30px;
  }
  .about_manufacturing {
    padding: 50px 0;
  }
  .about_manufacturing .img {
    border-radius: 10px;
  }
  .about_manufacturing .rt {
    padding: 0;
  }
  .about_manufacturing .head .subtitle {
    margin-bottom: 8px;
  }
  .about_manufacturing .features {
    margin-top: 20px;
  }
  .about_manufacturing .features ul {
    gap: 20px;
  }
  .about_manufacturing .features li strong {
    font-size: 20px;
  }
  .about_manufacturing .features li p {
    font-size: 14px;
    margin-top: 5px;
  }
  .about_advantages {
    padding: 50px 0 30px;
  }
  .about_advantages .items {
    margin-top: 10px;
  }
  .about_advantages .items ul {
    gap: 20px;
    width: calc(100% + 40px);
    padding: 20px;
    margin: 0 -20px;
    display: flex;
    overflow-x: auto;
  }
  .about_advantages .items ul::-webkit-scrollbar {
    display: none;
  }
  .about_advantages .items ul li {
    flex: 0 0 280px;
  }
  .about_advantages .items .active .item .icon {
    animation: unset;
  }
  .about_advantages .items .active .item .btn_s {
    opacity: 1;
  }
  .about_advantages .item {
    padding: 20px;
    --radius: 10px;
  }
  .about_advantages .item .title {
    font-size: 18px;
    margin-top: 8px;
    padding-bottom: 14px;
  }
  .about_advantages .item .desc {
    line-height: 1.5;
    margin-top: 12px;
    transform: translateY(0);
    opacity: 1;
  }
  .about_advantages .item .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: unset;
    margin-top: 20px;
  }
  .about_advantages .item .icon {
    width: 40px;
    height: 40px;
    position: static;
    margin: 0;
  }
  .about_advantages .item .btn_s {
    position: static;
    margin: 0;
  }
  .about_certifications {
    padding: 50px 0 40px;
  }
  .about_certifications .swiper_btns {
    margin: 0;
  }
  .about_certifications .about_certifications_swiper {
    margin-top: 20px;
  }
  .about_certifications .about_certifications_swiper .swiper-slide {
    max-width: 232px;
  }
  .about_certifications .item .title {
    font-size: 16px;
    margin-top: 14px;
  }
}
@media screen and (max-width: 576px) {
  .page_banner::before {
    opacity: 0.4;
  }
  .about_intro .image {
    width: 100%;
  }
  .about_background .card {
    width: 100%;
  }
  .about_manufacturing .img {
    width: 100%;
  }
}