.class_name {
  font-family: Poppins-SemiBold;
  font-weight: 600;
  font-size: 0.5rem;
  color: #000000;
  text-align: center;
}
.class_txt {
  font-family: Poppins-Regular;
  font-weight: 400;
  font-size: 0.2rem;
  color: #555555;
  line-height: 1.75;
  text-align: center;
}
.index_banner {
  height: 100vh;
  max-height: 10.8rem;
  position: relative;
  overflow: hidden;
  font-size: 0.25rem;
}
.index_banner .swiper-slide {
  width: 100%;
  height: 100%;
  position: relative;
}
.index_banner .swiper-slide .banner_img {
  width: 100%;
  height: 100%;
  position: relative;
}
.index_banner .swiper-slide .banner_text {
  position: absolute;
  z-index: 1;
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: all 0.6s ease-in-out;
}
.index_banner .swiper-slide .banner_text h3 {
  width: 100%;
  max-width: 10.84rem;
  font-family: Poppins-Bold;
  font-weight: bold;
  font-size: 0.55rem;
  color: #FFFFFF;
  line-height: 1.28;
}
.index_banner .swiper-slide .banner_text p {
  width: 100%;
  max-width: 10.17rem;
  font-family: Poppins-Medium;
  font-weight: 500;
  font-size: 0.25rem;
  color: #FFFFFF;
  line-height: 1.8;
  margin-top: 0.18rem;
}
.index_banner .swiper-slide .banner_text .btn {
  margin-top: 0.7rem;
  column-gap: 0.2rem;
  display: flex;
  align-items: center;
}
.index_banner .swiper-slide .banner_text .btn a {
  width: 1.8rem;
  height: 0.5rem;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 0.05rem;
  border: 0.01rem solid rgba(255, 255, 255, 0.38);
  font-family: Poppins-Regular;
  font-weight: 400;
  font-size: 0.18rem;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  column-gap: 0.14rem;
}
.index_banner .swiper-slide .banner_text .btn a i {
  width: 0.1rem;
  height: 0.1rem;
  display: block;
  background: url(../img/head_icon.png) center no-repeat;
  background-size: contain;
  filter: brightness(0) invert(1);
}
.index_banner .swiper-slide .banner_text .btn a:hover {
  background: #A6CE39;
  color: #ffffff;
}
.index_banner .swiper-slide.swiper-slide-active .banner_text {
  top: 25%;
  opacity: 1;
}
.index_banner > .main {
  position: absolute;
  bottom: 0.63rem;
  left: 50%;
  transform: translateX(-50%);
  height: 0.55rem;
  z-index: 1;
  display: flex;
  align-items: center;
}
.index_banner > .main .swiper-button-next,
.index_banner > .main .swiper-button-prev {
  width: 0.55rem;
  height: 0.55rem;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 0.05rem;
  border: 0.01rem solid rgba(255, 255, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  top: 0;
  right: 0;
  margin: 0;
}
.index_banner > .main .swiper-button-next::after,
.index_banner > .main .swiper-button-prev::after {
  display: none;
}
.index_banner > .main .swiper-button-next img,
.index_banner > .main .swiper-button-prev img {
  width: 0.18rem;
  height: 0.11rem;
  object-fit: contain;
}
.index_banner > .main .swiper-button-prev {
  left: auto;
  right: 0.68rem;
}
.index_banner > .main .swiper-button-next:hover,
.index_banner > .main .swiper-button-prev:hover{
    background: #A6CE39;
}
.index_banner > .main .swiper-button-next:hover img,
.index_banner > .main .swiper-button-prev:hover img{
    filter: brightness(0) invert(1);
}

.index_banner > .main .swiper-pagination {
  width: fit-content;
  left: 0;
  display: flex;
  align-items: center;
  bottom: auto;
}
.index_banner > .main .swiper-pagination span {
  width: 0.8rem;
  height: 0.03rem;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 1rem;
  opacity: 1;
  margin: 0 0.15rem 0 0;
}
.index_banner > .main .swiper-pagination .swiper-pagination-bullet-active {
  background: #FFFFFF;
}
.about_body {
  padding: 1.38rem 0;
  font-size: 0.2rem;
  overflow: hidden;
  position: relative;
}
.about_body .class_txt {
  margin-top: 0.4rem;
}
.about_body .about-container {
  margin-top: 0.8rem;
  display: flex;
  justify-content: space-between;
}
.about_body .about-container .num_item .stat-value {
  display: flex;
  font-family: Poppins-Regular;
  font-weight: 400;
  font-size: 0.16rem;
  color: #7C7C7C;
  align-items: baseline;
}
.about_body .about-container .num_item .stat-value .scroll_num {
  margin-right: 0.08rem;
  font-family: Poppins-SemiBold;
  font-weight: 600;
  font-size: 0.7rem;
  color: #000000;
}
.about_body .about-container .num_item .stat-title {
  font-family: Poppins-Regular;
  font-weight: 400;
  font-size: 0.18rem;
  color: #AAAAAA;
}
.about_body .about-container .num_item:hover .stat-value .scroll_num {
  color: #74951A;
}
.about_body .about_litpic {
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
  column-gap: 0.3rem;
}
.about_body .about_litpic .about_item {
  width: calc(33.33% - 0.2rem);
  height: auto;
}
.about_body .about_litpic .about_item .about_img {
  width: 100%;
  height: 3.67rem;
  border-radius: 0.1rem;
  overflow: hidden;
}
.about_body .about_litpic .about_item .about_img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.3s ease-in-out;
}
.about_body .about_litpic .about_item .about_title {
  margin-top: 0.3rem;
  text-align: center;
  font-family: Poppins-SemiBold;
  font-weight: 600;
  font-size: 0.2rem;
  color: #000000;
  line-height: 1.5;
  position: relative;
}
.about_body .about_litpic .about_item:hover .about_img img {
  transform: scale(1.1);
}
.about_body .about_litpic .about_item:hover .about_title {
  color: #74951A;
}
.about_body .about_litpic .about_item:hover .about_title::after {
  content: '';
  position: absolute;
  bottom: -0.33rem;
  left: 50%;
  transform: translateX(-50%);
  width: 0.19rem;
  height: 0.21rem;
  background: url(../img/head_icon.png) center no-repeat;
  background-size: contain;
}
.about_body .about_bg1 {
  width: 4.31rem;
  height: 4.77rem;
  position: absolute;
  top: 0;
  left: 0;
}
.about_body .about_bg1 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about_body .about_bg2 {
  width: 4.31rem;
  height: 4.77rem;
  position: absolute;
  top: 4.04rem;
  right: 0;
  z-index: -1;
}
.about_body .about_bg2 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product {
  padding: 1.2rem 0 1.12rem;
  font-size: 0.2rem;
  overflow: hidden;
  background: linear-gradient(180deg, #F7F7F7 0%, #FFFFFF 100%);
}
.product .class_txt {
  margin-top: 0.16rem;
}
.product .product_list {
  column-gap: 0.35rem;
  row-gap: 0.4rem;
  margin-top: 0.6rem;
  display: flex;
  flex-wrap: wrap;
}
.product .product_list .product_item {
  width: calc(25% - 0.2625rem);
}
.product .product_list .product_item .product_img {
  width: 100%;
  height: 0;
  position: relative;
  padding-bottom: 100%;
  border: 0.01rem solid #EDEDED;
  border-radius: 0.1rem;
  overflow: hidden;
  background: #fff;
}
.product .product_list .product_item .product_img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: all 0.3s ease-in-out;
  position: absolute;
  top: 0;
  left: 0;
}
.product .product_list .product_item .product_img::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  transition: all 0.5s ease-in-out;
}
.product .product_list .product_item .product_img::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0.67rem;
  height: 0.67rem;
   background: #AFE226 url(../img/play.png) center no-repeat;
 background-size: 0.27rem 0.27rem;
  border-radius: 50%;
  overflow: hidden;
  z-index: 1;
  opacity: 0;
  transition: all 0.5s ease-in-out;
}
.product .product_list .product_item .product_title {
  margin-top: 0.3rem;
  text-align: center;
  font-family: Poppins-Regular;
  font-weight: 400;
  font-size: 0.2rem;
  color: #4A4A4A;
  line-height: 1.5;
}
.product .product_list .product_item:hover .product_img img {
  transform: scale(1.1);
}
.product .product_list .product_item:hover .product_img::after,
.product .product_list .product_item:hover .product_img::before {
  opacity: 1;
}
.product .product_list .product_item:hover .product_title {
  font-family: Poppins-Bold;
  font-weight: bold;
  color: #74951A;
}
.certificates {
  padding: 1.2rem 0 1.9rem;
  overflow: hidden;
  background: url(../img/certificates_bg.png) center no-repeat;
  background-size: cover;
}
.certificates .certificates_box {
  margin-top: 1.27rem;
  position: relative;
}
.certificates .certificates_box .certificates_swiper {
  width: 100%;
  overflow: hidden;
}
.certificates .certificates_box .certificates_swiper .swiper-slide{
    display: flex;
    flex-wrap: wrap;
    align-content: end;
    height: auto;
}
.certificates .certificates_box .certificates_swiper .swiper-slide .certificates_img {
  width: fit-content;
  max-width: 100%;
  height: fit-content;
    border-image: url(../img/honors_bor.png) 90 / 90px round;
  padding: 30px 40px 76px;
  /*background: #fcf7eb;*/
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin: 0 auto;
}
.certificates .certificates_box .certificates_swiper .swiper-slide .certificates_img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  max-width: 100%;
  max-height: 3.6rem;
}
.certificates .certificates_box .certificates_swiper .swiper-slide p {
  text-align: center;
  font-family: Poppins-Regular;
  font-weight: 400;
  font-size: 0.2rem;
  color: #000000;
  width: 100%;
}
.certificates .certificates_box .certificates_swiper .swiper-slide:hover p {
  color: #74951A;
}
.certificates .certificates_box .swiper-button-next,
.certificates .certificates_box .swiper-button-prev {
  width: 0.5rem;
  height: 0.5rem;
  background: #FFFFFF;
  box-shadow: 0rem 0.05rem 0.15rem 0.01rem rgba(0, 0, 0, 0.07);
  border-radius: 50%;
}
.certificates .certificates_box .swiper-button-next::after,
.certificates .certificates_box .swiper-button-prev::after {
  font-weight: bold;
  font-size: 0.12rem;
  color: #000000;
}
.certificates .certificates_box .swiper-button-next:hover,
.certificates .certificates_box .swiper-button-prev:hover {
  background: #A6CE39;
}
.certificates .certificates_box .swiper-button-next:hover::after,
.certificates .certificates_box .swiper-button-prev:hover::after {
  color: #FFFFFF;
}
.certificates .certificates_box .swiper-button-next {
  right: -0.77rem;
}
.certificates .certificates_box .swiper-button-prev {
  left: -0.77rem;
}
.contact {
  padding: 0.93rem 0 0.88rem;
  overflow: hidden;
}
.contact .contact_box {
  margin-top: 1.2rem;
  column-gap: 0.26rem;
  row-gap: 0.2rem;
  display: flex;
  flex-wrap: wrap;
}
.contact .contact_box input,
.contact .contact_box textarea {
  width: calc(50% - 0.13rem);
  height: 0.5rem;
  background: #FFFFFF;
  border-radius: 0.05rem;
  border: 0.01rem solid #E2E2E2;
  padding: 0.1rem 0.13rem;
  font-family: Poppins-Regular;
  font-weight: 400;
  font-size: 0.18rem;
  color: #000;
}
.contact .contact_box input::placeholder,
.contact .contact_box textarea::placeholder {
  color: #BEBEBE;
}
.contact .contact_box input:focus,
.contact .contact_box textarea:focus {
  border: 0.01rem solid #8D8D8D;
}
.contact .contact_box input:nth-child(5) {
  width: 100%;
}
.contact .contact_box textarea {
  width: 100%;
  height: 1.47rem;
}
.contact .contact_box input[type="submit"] {
  width: 1.8rem;
  height: 0.5rem;
  background: #E0E0E0;
  border: none;
  margin: 0.33rem auto 0;
  border-radius: 0.05rem;
  font-family: Poppins-Regular;
  font-weight: 400;
  font-size: 0.18rem;
  color: #FFFFFF;
  cursor: pointer;
}
.contact .contact_box input[type="submit"]:hover {
  background: #A6CE39;
}





/* mobile-adapt: homepage tablet layout follows Taishan spacing and grid rules */
@media screen and (max-width: 1042px) {
  .class_name {
    font-size: 36px;
  }
  .class_txt {
    font-size: 16px;
    line-height: 1.7;
  }
  .index_banner {
    height: 720px;
    max-height: none;
  }
  .index_banner .swiper-slide .banner_text {
    top: 30%;
  }
  .index_banner .swiper-slide.swiper-slide-active .banner_text {
    top: 26%;
  }
  .index_banner .swiper-slide .banner_text h3 {
    max-width: 760px;
    font-size: 44px;
  }
  .index_banner .swiper-slide .banner_text p {
    max-width: 720px;
    font-size: 20px;
  }
  .index_banner .swiper-slide .banner_text .btn {
    margin-top: 44px;
  }
  .index_banner .swiper-slide .banner_text .btn a {
    width: 160px;
    height: 46px;
    font-size: 16px;
  }
  .index_banner > .main {
    bottom: 38px;
  }
  .index_banner > .main .swiper-button-next,
  .index_banner > .main .swiper-button-prev {
    width: 44px;
    height: 44px;
  }
  .index_banner > .main .swiper-button-prev {
    right: 56px;
  }
  .index_banner > .main .swiper-pagination span {
    width: 56px;
  }
  .about_body,
  .product,
  .certificates,
  .contact {
    padding: 80px 0;
  }
  .about_body .class_txt {
    margin-top: 24px;
  }
  .about_body .about-container {
    margin-top: 50px;
    flex-wrap: wrap;
    row-gap: 26px;
  }
  .about_body .about-container .num_item {
    width: 50%;
  }
  .about_body .about-container .num_item .stat-value .scroll_num {
    font-size: 54px;
  }
  .about_body .about-container .num_item .stat-title {
    font-size: 16px;
  }
  .about_body .about_litpic {
    margin-top: 60px;
    column-gap: 20px;
  }
  .about_body .about_litpic .about_item {
    width: calc(33.33% - 14px);
  }
  .about_body .about_litpic .about_item .about_img {
    height: 240px;
  }
  .about_body .about_litpic .about_item .about_title,
  .product .product_list .product_item .product_title,
  .certificates .certificates_box .certificates_swiper .swiper-slide p {
    font-size: 16px;
  }
  .about_body .about_bg1,
  .about_body .about_bg2 {
    opacity: 0.35;
  }
  .product .product_list {
    margin-top: 44px;
    gap: 28px 20px;
  }
  .product .product_list .product_item {
    width: calc(33.33% - 14px);
  }
  .certificates .certificates_box {
    margin-top: 60px;
  }
  .certificates .certificates_box .certificates_swiper .swiper-slide .certificates_img {
    padding: 20px 26px 58px;
  }
  .certificates .certificates_box .swiper-button-next {
    right: 0;
  }
  .certificates .certificates_box .swiper-button-prev {
    left: 0;
  }
  .contact .contact_box {
    margin-top: 60px;
  }
  .contact .contact_box input,
  .contact .contact_box textarea {
    height: 46px;
    font-size: 16px;
  }
  .contact .contact_box textarea{
      height: 80px;
  }
}

/* mobile-adapt: homepage phone stacks content into single-column sections */
@media screen and (max-width: 768px) {
  .class_name {
    font-size: 28px;
  }
  .class_txt {
    font-size: 14px;
  }
  .index_banner {
    height: 580px;
  }
  .index_banner .swiper-slide .banner_text,
  .index_banner .swiper-slide.swiper-slide-active .banner_text {
    top: 22%;
  }
  .index_banner .swiper-slide .banner_text h3 {
    font-size: 24px;
    line-height: 1.25;
  }
  .index_banner .swiper-slide .banner_text p {
    font-size: 16px;
    line-height: 1.6;
  }
  .index_banner .swiper-slide .banner_text .btn {
    margin-top: 30px;
    flex-wrap: wrap;
    gap: 12px;
  }
  .index_banner .swiper-slide .banner_text .btn a {
    width: 140px;
    height: 42px;
    font-size: 14px;
  }
  .index_banner > .main {
    bottom: 24px;
    height: 38px;
  }
  .index_banner > .main .swiper-button-next,
  .index_banner > .main .swiper-button-prev {
    display: none;
  }
  .index_banner > .main .swiper-pagination span {
    width: 36px;
    margin-right: 8px;
  }
  .about_body,
  .product,
  .certificates,
  .contact {
    padding: 54px 0;
  }
  .about_body .about-container {
    margin-top: 36px;
  }
  .about_body .about-container .num_item .stat-value {
    font-size: 14px;
    align-items: center;
  }
  .about_body .about-container .num_item .stat-value .scroll_num {
    font-size: 40px;
  }
  .about_body .about_litpic {
    margin-top: 42px;
    display: block;
  }
  .about_body .about_litpic .about_item {
    width: 100%;
    display: block;
    margin-bottom: 28px;
  }
  .about_body .about_litpic .about_item:last-child {
    margin-bottom: 0;
  }
  .about_body .about_litpic .about_item .about_img {
    height: 220px;
  }
  .about_body .about_litpic .about_item .about_title {
    margin-top: 16px;
  }
  .about_body .about_bg1,
  .about_body .about_bg2 {
    display: none;
  }
  .product .product_list {
    margin-top: 34px;
    gap: 24px 14px;
  }
  .product .product_list .product_item {
    width: calc(50% - 7px);
  }
  .product .product_list .product_item .product_title {
    margin-top: 14px;
    font-size: 14px;
  }
  .certificates .certificates_box {
    margin-top: 38px;
    padding: 0 34px;
  }
  .certificates .certificates_box .certificates_swiper .swiper-slide .certificates_img {
    padding: 20px 26px 60px;
  }
  .certificates .certificates_box .certificates_swiper .swiper-slide .certificates_img img{
      max-height: 260px;
  }
  .certificates .certificates_box .swiper-button-next,
  .certificates .certificates_box .swiper-button-prev {
    width: 36px;
    height: 36px;
  }
  .contact .contact_box {
    margin-top: 38px;
    row-gap: 14px;
  }
  .contact .contact_box input,
  .contact .contact_box textarea {
    width: 100%;
    font-size: 14px;
  }
  .contact .contact_box input[type="submit"] {
    width: 140px;
    height: 42px;
    margin-top: 18px;
    font-size: 14px;
  }
}