* {
  margin: 0;
  padding: 0;
}
button {
  border: none;
  outline: none;
  font-family: inherit;
}
body {
  background: #FFFFFF;
  padding-top: 1.7rem;
}
.about_banner {
  height: 4rem;
  position: relative;
  overflow: hidden;
  color: #FFFFFF;
}
.about_banner .banner_bg {
  position: absolute;
  inset: 0;
}
.about_banner .banner_bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about_banner .banner_bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(109deg, #01060D 0%, rgba(60, 123, 198, 0) 100%);
}
.about_banner .bread_nav .main {
  width: 100%;
  color: #FFFFFF;
}
.about_banner > .main {
  height: 100%;
  position: relative;
  z-index: 1;
  padding-top: 0.34rem;
}
.about_banner .banner_txt {
  width: calc(50% + 1.35rem);
  margin-top: 0.38rem;
}
.about_banner .banner_txt h2 {
  font-family: Poppins-SemiBold;
  font-weight: 600;
  font-size: 0.45rem;
  color: #FFFFFF;
  line-height: 1;
}
.about_banner .banner_txt h3 {
  font-weight: 400;
  margin-top: 0.15rem;
  font-size: 0.18rem;
  color: #FFFFFF;
  line-height: 1.611;
}
.about_banner .banner_txt p {
  width: 100%;
  margin-top: 0.05rem;
  font-size: 0.16rem;
  color: rgba(255, 255, 255);
  line-height: 1.875;
}
.banner_btns {
  margin-top: 0.37rem;
  display: flex;
  column-gap: 0.17rem;
  overflow: hidden;
}
.banner_btns a {
  width: fit-content;
  padding: 0.1rem 0.13rem;
  background: rgba(255, 255, 255, 0.11);
  border: 0.01rem solid rgba(255, 255, 255, 0.44);
  border-radius: 0.23rem;
  font-size: 0.16rem;
  color: rgba(255, 255, 255, 0.7);
}
.banner_btns a.active,
.banner_btns a:hover {
  border-color: #FFBD19;
  background: #FFBD19;
}
.about_intro {
  padding: 0.7rem 0;
  background: #FFFFFF url(../img/curve_bg2.png) no-repeat right bottom;
  background-size: cover;
  overflow: hidden;
}
.about_intro .intro_top {
  margin-top: 0.45rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  column-gap: 0.55rem;
}
.about_intro .intro_txt {
  width: calc(50% + 0.34rem);
}
.about_intro .intro_txt p {
  margin-bottom: 0.22rem;
  font-size: 0.18rem;
  color: #717171;
  line-height: 1.6666;
}
.about_intro .intro_video {
  width: calc(50% - 0.9rem);
  height: 4rem;
  border-radius: 0.2rem;
  overflow: hidden;
  position: relative;
}
.about_intro .intro_video > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about_intro .intro_video .about_play {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.47rem;
  height: 0.47rem;
  border-radius: 50%;
  background: #0169DB;
  transform: translate(-50%, -50%);
  z-index: 1;
}
.about_intro .intro_video .about_play:before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: -1;
  border-radius: 50%;
  width: 0.16rem;
  height: 0.16rem;
  background-color: #0169DB;
  transform: translate(-50%, -50%);
  opacity: 0.16;
  animation: dot 3s 0.75s infinite;
}
.about_intro .intro_video .about_play:after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: -2;
  border-radius: 50%;
  width: 0.16rem;
  height: 0.16rem;
  background-color: #3a67bb;
  transform: translate(-50%, -50%);
  opacity: 0.6;
  animation: dot 3s infinite;
}
.about_intro .intro_video i {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 2;
}
.about_intro .intro_video i::before {
  content: "";
  position: absolute;
  left: 0.17rem;
  top: 0.13rem;
  border-left: 0.17rem solid #FFFFFF;
  border-top: 0.11rem solid transparent;
  border-bottom: 0.11rem solid transparent;
}
.about_intro .intro_desc {
  margin-top: 0.62rem;
  font-size: 0.18rem;
  color: #717171;
  line-height: 1.6666;
}
.about_intro .intro_desc p {
  margin-bottom: 0.22rem;
  font-size: 0.18rem;
  color: #717171;
  line-height: 1.6666;
}
@keyframes dot {
  0% {
    width: 0.47rem;
    height: 0.47rem;
    opacity: 0.6;
  }
  100% {
    width: 0.94rem;
    height: 0.94rem;
    opacity: 0;
  }
}
.num_list {
  margin-top: 0.6rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  column-gap: 1.32rem;
}
.num_list .num_item {
  min-height: 0.9rem;
  border-bottom: 0.01rem solid #BFC7CF;
  position: relative;
  padding-bottom: 0.17rem;
}
.num_list .num_item .num_icon {
  position: absolute;
  top: 0;
  right: 0;
  width: 0.39rem;
  height: 0.39rem;
}
.num_list .num_item .num_icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.num_list .num_item b,
.num_list .num_item span {
  font-family: Anton-Regular;
  font-weight: 400;
  font-size: 0.75rem;
  color: #0069DB;
  line-height: 1;
}
.num_list .num_item p {
  font-family: Poppins-Light;
  font-weight: 300;
  margin-top: 0.06rem;
  font-size: 0.18rem;
  color: #000;
}
.num_list .num_item:first-child span {
  font-family: Poppins-Regular;
  font-weight: 400;
  margin-left: 0.1rem;
  font-size: 0.17rem;
  color: #0069DB;
}
.num_list .num_item:hover {
  border-color: #0069DB;
}
.num_list .num_item:hover p {
  color: #0069DB;
}
.branch_list {
  margin-top: 0.7rem;
  position: relative;
}
.branch_list .swiper-slide {
  height: auto;
}
.branch_list .swiper-slide .branch_img {
  width: 100%;
  height: 0;
  padding-bottom: 56%;
  position: relative;
  overflow: hidden;
  border-radius: 0.1rem;
}
.branch_list .swiper-slide .branch_img img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.branch_list .swiper-slide p {
  margin-top: 0.18rem;
  text-align: center;
  font-size: 0.18rem;
  color: #000;
}
.culture_sec {
  padding: 0.7rem 0 1.25rem;
  background: #FFFFFF;
  overflow: hidden;
}
.culture_sec .culture_list {
  margin: 0.58rem auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 0.37rem;
}
.culture_sec .culture_list .culture_item {
  height: 5.2rem;
  border-radius: 0.1rem;
  overflow: hidden;
  position: relative;
}
.culture_sec .culture_list .culture_item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.3s ease-in-out;
}
.culture_sec .culture_list .culture_item .culture_txt {
  position: absolute;
  left: 0;
  top: calc(100% - 0.7rem);
  width: 100%;
  height: 100%;
  z-index: 1;
  padding: 0 0.29rem;
  display: flex;
  flex-direction: column;
  transition: top 0.5s;
}
.culture_sec .culture_list .culture_item .culture_txt .culture_title {
  text-align: center;
  font-family: Poppins-SemiBold;
  font-size: 0.23rem;
  color: #FFFFFF;
  margin-bottom: 0.37rem;
}
.culture_sec .culture_list .culture_item .culture_txt .culture_info {
  padding-top: 0.11rem;
  border-top: 0.01rem solid rgba(255, 255, 255, 0.5);
  font-family: Poppins, Poppins;
  font-weight: 300;
  font-size: 0.16rem;
  color: #FFFFFF;
  line-height: 1.5625;
  padding-bottom: 0.49rem;
}
.culture_sec .culture_list .culture_item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 48%, rgba(0, 0, 0, 0.72) 100%);
}
.culture_sec .culture_list .culture_item:hover::after {
  background: linear-gradient( 180deg, rgba(0,0,0,0.6) 0%, #0169DB 100%);
}
.culture_sec .culture_list .culture_item:hover .culture_txt {
  top: 0;
  justify-content: flex-end;
}
.culture_sec .culture_list .culture_item:hover .culture_txt .culture_title {
  margin-bottom: 0.12rem;
  text-align: left;
}
.culture_sec .culture_list .culture_item:hover img {
  transform: scale(1.1);
}
.certificate_sec {
  padding: 0.7rem 0 0.8rem;
  background: #F4F6F8 url(../img/curve_bg.png) no-repeat center center;
  background-size: cover;
  overflow: hidden;
}
.certificate_sec .certificate_list {
  margin-top: 0.7rem;
  height: auto;
  position: relative;
}
.certificate_sec .certificate_list .certificate_swiper {
  overflow: hidden;
}
.certificate_sec .certificate_list .certificate_swiper .cert_box {
  height: 3.64rem;
}
.certificate_sec .certificate_list .certificate_swiper .cert_box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.certificate_sec .certificate_list .certificate_swiper p {
  margin-top: 0.08rem;
  text-align: center;
  font-size: 0.2rem;
  color: #1E1E1E;
  line-height: 1.75;
}
.certificate_sec .certificate_list .swiper-button-next,
.certificate_sec .certificate_list .swiper-button-prev {
  left: -0.48rem;
  top: 1.38rem;
  margin: 0;
}
.certificate_sec .certificate_list .swiper-button-next::after,
.certificate_sec .certificate_list .swiper-button-prev::after {
  font-size: 0.28rem;
  color: #D0D0D0;
}
.certificate_sec .certificate_list .swiper-button-next:hover::after,
.certificate_sec .certificate_list .swiper-button-prev:hover::after {
  color: #0069DB;
}
.certificate_sec .certificate_list .swiper-button-next {
  left: auto;
  right: -0.48rem;
}
.about_service {
  padding: 0.9rem 0 1.05rem;
  background: #FFFFFF;
  overflow: hidden;
}
.about_service .service_list {
  margin-top: 0.9rem;
  display: flex;
  justify-content: space-between;
  text-align: center;
}
.about_service .service_list .service_item {
  width: 2.7rem;
  position: relative;
}
.about_service .service_list .service_item:nth-child(2) {
  width: 3.27rem;
}
.about_service .service_list .service_item i {
  width: 0.69rem;
  height: 0.69rem;
  margin: 0 auto 0.16rem;
  border-radius: 50%;
  background: #0069DB;
  display: flex;
}
.about_service .service_list .service_item i img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  /*filter: brightness(0) invert(1);*/
}
.about_service .service_list .service_item h3 {
  font-family: Poppins-SemiBold;
  font-weight: 600;
  font-size: 0.2rem;
  color: #000000;
  line-height: 1.75;
}
.about_service .service_list .service_item p {
  margin-top: 0.12rem;
  font-size: 0.16rem;
  color: #000;
  line-height: 1.35;
}
.about_service .service_list .service_item:hover:after{
    content: "";
    position: absolute;
    left: 50%;
    bottom: -0.42rem;
    transform: translateX(-50%);
    width: 1.16rem;
    height: 0.43rem;
    background: url(../img/bor_bg.png) center center no-repeat;
    background-size: contain;
}







@media screen and (max-width: 1042px) {
    body {
        padding-top: 90px;
        font-size: 14px;
    }

    .about_banner {
        height: auto;
        min-height: 0;
    }

    .about_banner > .main {
        height: auto;
        min-height: 360px;
        padding-top: 24px;
        padding-bottom: 42px;
    }

    .about_banner .banner_txt {
        width: 100%;
        margin-top: 28px;
    }

    .about_banner .banner_txt h2 {
        font-size: 24px;
        line-height: 1.3;
    }

    .about_banner .banner_txt h3,
    .about_banner .banner_txt p,
    .about_intro .intro_txt p,
    .about_intro .intro_desc p,
    .culture_sec .culture_list .culture_item .culture_txt .culture_info,
    .about_service .service_list .service_item p {
        font-size: 14px;
        line-height: 1.65;
    }

    .about_intro,
    .culture_sec,
    .certificate_sec,
    .about_service {
        padding: 42px 0 50px;
    }

    .about_intro .intro_top,
    .about_intro .intro_desc,
    .num_list,
    .branch_list,
    .culture_sec .culture_list,
    .certificate_sec .certificate_list,
    .about_service .service_list {
        margin-top: 28px;
    }

    .about_intro .intro_top {
        flex-direction: column;
    }

    .about_intro .intro_txt,
    .about_intro .intro_video {
        width: 100%;
    }

    .about_intro .intro_video,
    .branch_list .swiper-slide .branch_img,
    .culture_sec .culture_list .culture_item,
    .certificate_sec .certificate_list .certificate_swiper .cert_box {
        height: auto;
        aspect-ratio: 4 / 3;
        overflow: hidden;
    }

    .branch_list .swiper-slide .branch_img {
        aspect-ratio: 16 / 9;
        padding-bottom: 0;
    }

    .about_intro .intro_video > img,
    .branch_list .swiper-slide .branch_img img,
    .culture_sec .culture_list .culture_item img,
    .certificate_sec .certificate_list .certificate_swiper .cert_box img {
        position: static;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .num_list,
    .culture_sec .culture_list,
    .about_service .service_list {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }

    .about_service .service_list {
        display: grid;
    }

    .about_service .service_list .service_item,
    .about_service .service_list .service_item:nth-child(2) {
        width: 100%;
    }

    .num_list .num_item b,
    .num_list .num_item span {
        font-size: 30px;
        line-height: 1.1;
    }

    .num_list .num_item:first-child span {
        font-size: 18px;
    }

    .culture_sec .culture_list .culture_item .culture_txt .culture_title,
    .about_service .service_list .service_item h3 {
        font-size: 16px;
        line-height: 1.45;
    }

    .certificate_sec .certificate_list .swiper-button-next,
    .certificate_sec .certificate_list .swiper-button-prev {
        display: none;
    }
    .num_list .num_item .num_icon{
      width: 40px;
      height: 40px;
      top: 10px;
      right: 10px;
    }

    .bread_nav {
        padding-top: 0;
        margin-bottom: 18px;
        font-size: 12px;
        line-height: 1.5;
    }

    .about_banner .banner_txt h2 {
        max-width: 100%;
    }

    .about_intro .intro_txt h2,
    .culture_sec h2,
    .certificate_sec h2,
    .about_service h2 {
        font-size: 20px;
        line-height: 1.35;
    }

    .about_intro .intro_video {
        margin-top: 18px;
        border-radius: 8px;
    }

    .about_intro .intro_video .play_btn {
        width: 48px;
        height: 48px;
    }

    .about_intro .intro_desc {
        display: block;
    }

    .about_intro .intro_desc p + p {
        margin-top: 12px;
    }

    .num_list {
        display: grid;
    }

    .num_list .num_item {
        min-height: auto;
        padding: 18px 12px;
        border-radius: 8px;
        background: #F7FAFD;
        border: 1px solid #E6EEF7;
        box-shadow: 0 8px 20px rgba(20, 46, 78, 0.05);
    }

    .num_list .num_item p {
        margin-top: 8px;
        font-size: 12px;
        line-height: 1.45;
    }

    .branch_list {
        padding-bottom: 34px;
    }

    .branch_list .swiper-slide .branch_img,
    .culture_sec .culture_list .culture_item,
    .certificate_sec .certificate_list .certificate_swiper .cert_box {
        border-radius: 8px;
    }

    .branch_list .swiper-slide p,
    .certificate_sec .certificate_list .certificate_swiper p {
        margin-top: 10px;
        font-size: 14px;
        line-height: 1.45;
    }

    .culture_sec .culture_list {
        display: grid;
    }
    .culture_sec .culture_list .culture_item::after{
        background: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 48%, rgba(0, 0, 0, 0.72) 100%);
    }
    .culture_sec .culture_list .culture_item .culture_txt {
        padding: 14px;
        top: 0;
        height: auto;
    }
    .culture_sec .culture_list .culture_item .culture_txt .culture_info{
      padding-bottom: 0;
      font-size: 12px;
      line-height: 1.5;
      max-height: 160px;
      overflow-y: auto;
    }

    .certificate_sec .certificate_list {
        padding-bottom: 34px;
    }

    .about_service .service_list .service_item {
        min-height: 0;
        padding: 18px 12px;
        border-radius: 8px;
        background: #F7F8FA;
    }

    .about_service .service_list .service_item i {
        width: 48px;
        height: 48px;
        margin-bottom: 12px;
    }

    /* mobile polish */
      .about_banner > .main {
        min-height: 390px;
        padding-top: 30px;
      }
      .about_banner .banner_txt h2 {
        font-size: 24px;
        line-height: 1.25;
      }
      .about_banner .banner_txt h3,
      .about_banner .banner_txt p {
        font-size: 14px;
        line-height: 1.65;
      }
      .banner_btns {
        margin-top: 26px;
        gap: 10px;
      }
      .banner_btns a {
        min-height: 38px;
        padding: 8px 16px;
        border-radius: 20px;
        font-size: 14px;
      }
      .about_intro,
      .culture_sec,
      .certificate_sec,
      .about_service {
        padding: 48px 0 56px;
      }
      .about_intro .intro_txt h2,
      .culture_sec h2,
      .certificate_sec h2,
      .about_service h2 {
        font-size: 24px;
        line-height: 1.3;
      }
      .about_intro .intro_video,
      .culture_sec .culture_list .culture_item,
      .certificate_sec .certificate_list .certificate_swiper .cert_box,
      .about_service .service_list .service_item {
        border-radius: 8px;
      }
      .num_list {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
      }
      .num_list .num_item b,
      .num_list .num_item span {
        font-size: 34px;
      }
      .branch_list .swiper-slide p,
      .certificate_sec .certificate_list .certificate_swiper p {
        font-size: 15px;
      }
      .culture_sec .culture_list {
        grid-template-columns: 1fr;
        gap: 16px;
      }
      .culture_sec .culture_list .culture_item {
        aspect-ratio: 16 / 11;
      }
      .about_service .service_list {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
      }
}

@media screen and (max-width: 480px) {
    .num_list,
    .culture_sec .culture_list,
    .about_service .service_list {
        grid-template-columns: 1fr;
    }
}