@media screen and (max-width:768px) {
  header .menu {
    position: fixed;
    left: 0;
    top: var(--head);
    width: 100%;
    height: 100vh;
    background: #FAFEFF;
    display: block;
    opacity: 0;
    overflow: auto;
    -webkit-transition: all ease .3s;
    -o-transition: all ease .3s;
    -moz-transition: all ease .3s;
    transition: all ease .3s;
    z-index: 50;
    color: #333;
    pointer-events: none;
  }

  header.open .menu {
    left: 0;
    opacity: 1;
    pointer-events: visible;
  }
  .foot-shares .left .pic {
    width: 18px;
    height: 24px;
  }
  header .link {
    width: 100%;
    margin-left: 0;
  }

  header .link>a {
    display: block;
    border-bottom: 1px solid #ddd;
    line-height: 50px;
  }

  header .link a {
    padding: 0 20px;
  }

  header .link::after {
    display: none;
    width: 52px;
    height: 10px;
    left: 50%;
    top: 100%;
    margin-top: 14px;
    -webkit-transform: translate(-50%, -50%) scale(0);
    -moz-transform: translate(-50%, -50%) scale(0);
    -o-transform: translate(-50%, -50%) scale(0);
    transform: translate(-50%, -50%) scale(0);
  }

  header .link:hover::after,
  header .link.on::after {
    -webkit-transform: translate(-50%, 0) scale(1);
    -moz-transform: translate(-50%, 0) scale(1);
    -o-transform: translate(-50%, 0) scale(1);
    transform: translate(-50%, 0) scale(1);
  }

  header .down {
    min-width: 80px;
    overflow: hidden;
    padding: 0;
  }

  header .link .down {
    left: 50%;
    top: 100%;
    margin-top: 0;
    -webkit-transform: translate(0, 0);
    -moz-transform: translate(0, 0);
    -o-transform: translate(0, 0);
    transform: translate(0, 0);
    min-width: 160px;
    padding: 0;
    border-radius: 0;
    -webkit-box-shadow: none;
    box-shadow: none;
    position: static;
    opacity: 1;
    width: 100%;
    pointer-events: visible;
    border-bottom: 1px solid #ddd;
    display: none;
  }

  header .link .down::before {
    width: 100%;
    height: 40px;
    bottom: 100%;
  }

  header .link .down a {
    padding: 10px 30px;
    text-align: left;
    font-size: 14px;
    color: #666;
  }

  header .link .down a:not(:last-child) {
    border-bottom: none;
  }

  header .link .down-jt {
    width: 50px;
    height: 50px;
    position: absolute;
    right: 0;
    top: 0;
    background: url('/img/icon-jia.svg') no-repeat center/15px;
  }


  header .link.on .down-jt {
    background: url('/img/icon-jian.svg') no-repeat center/15px;
  }

  :root {
    --head: 53px;
  }

  svg {
    width: 100%;
    height: 100%;
  }

  .C-wrap {
    width: 90%;
  }

  .C-btn {
    min-width: 80px;
    height: 34px;
    padding: 0 20px 0 24px;
    gap: 4px;
    border: 1px solid #5BA5B2;
    border-radius: 10px;
  }

  .C-btn .icon {
    width: 12px;
  }

  .C-btn .icon.size2 {
    width: 9px;
  }

  .C-btn2 {
    height: 34px;
    padding: 0 20px 0 24px;
    gap: 8px;
    border: 1px solid #ffffff;
    border-radius: 10px;
  }

  .C-btn2 .icon {
    width: 12px;
  }

  /* -----------------------------------------head,foot-------------------------------------- */
  .head1 {
    width: 100%;
  }

  .isback .head1 {
    transform: translateY(-100%);
  }

  .head1 .logo {
    width: 41px;
  }

  .head1 .menu {
    gap: 29px;
    height: 100%;
  }

  .head1 .link {
    height: auto;
  }

  .head1 .link>a {
    height: auto;
    display: flex;
  }

  .nav-btn {
    padding: 6px 18px 6px;
    margin-left: 14px;
    border-radius: 0 0 10px 10px;
    height: 28px;
    display: flex;
    align-items: flex-end;
  }

  .g-footer {
    width: 100%;
    padding: 68px 5% 10px;
  }

  .g-footer-wrap {
    max-width: 90%;
  }

  .g-footer-nav {
    gap: 40px;
    margin-bottom: 65px;
  }

  .g-footer-col {
    width: auto;
  }

  .g-footer-col-title {
    margin-bottom: 8px;
  }

  .g-footer-link {
    margin-bottom: 8px;
  }

  .g-footer-line {
    width: 100%;
    height: 1px;
    margin-bottom: 4px;
  }

  .g-footer-legal {
    gap: 15px;
  }

  .foot-shares {
    justify-content: flex-start;
  }

  .foot-shares .icon {
    width: 36px;
  }

  .join-cta {
    width: 90%;
    height: 467px;
    border-radius: 20px;
  }

  .join-cta-bg {
    width: 100%;
    height: 100%;
  }

  .join-cta-bg img {
    width: 100%;
    height: 100%;
  }

  .join-cta-content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .join-cta-desc {
    margin: 17px 0 26px;
    font-size: 14px;
  }

  .wxgzh .qr {
    left: 50%;
    top: auto;
    bottom: 100%;
    transform: translateX(-50%);
    margin-left: 0;
    margin-bottom: 20px;
  }

  .wxgzh .qr::before {
    right: 50%;
    top: 94%;
    transform: translateX(50%) rotate(270deg);
  }

  /* ------------------------------------------------------------------------------- */
  .about1 {
    width: 100%;
    padding: 0 0 80px;
  }

  .about1-bg {
    width: 100%;
    height: 408px;
  }

  .about1-bg::after {
    width: 100%;
    height: 100%;
    background: linear-gradient(270deg, rgba(255, 255, 255, 0.00) 30%, #FAFFFF 85%);
  }

  .about1-bg img {
    width: 100%;
    height: 100%;
  }

  .about1-content {
    left: 5%;
    width: 90%;
    top: 86px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(2px);
    padding: 20px;
    border-radius: 20px;
    overflow: hidden;
  }

  .about1-title {
    margin-bottom: 30px;
  }

  .about1-desc {
    width: 100%;
  }

  .about2 {
    width: 100%;
  }

  .about2-bg img {
    width: 100%;
    height: 100%;
  }

  .about2-title {
    top: 20px;
    left: 0;
    width: 100%;
    padding: 0 5%;
    transform: none;
    line-height: 1.4;
    position: static;
    color: #000;
    margin-bottom: 20px;
  }

  .about3 {
    padding: 65px 5% 50px;
  }

  .about3 .C-title {
    margin-bottom: 33px;
  }

  .C-title .k1 {
    margin-bottom: 10px;
  }

  .C-title-line {
    width: 100%;
    height: 1px;
  }

  .about3-values {
    gap: 12px;
    flex-wrap: nowrap;
  }

  .value-card {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    height: 240px;
    border-radius: 10px;
    padding: 26px 21px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0px 5px 16px 0px rgba(31, 38, 135, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .value-icon {
    width: 53px;
    margin-bottom: 34px;
    margin-left: -10px;
  }

  .value-icon img {
    width: 100%;
    height: 100%;
  }

  .value-title {
    margin-bottom: 5px;
  }

  .about4 {
    padding: 0 5% 50px;
  }

  .about4 .C-title {
    margin-bottom: 31px;
  }

  .about4 .list {
    gap: 20px;
    grid-template-columns: repeat(3, 1fr);
  }

  .about4 .list .col {
    gap: 20px;
  }

  .about4 .list .col-1 {
    padding-top: 20px;
  }

  .about4 .list .col-3 {
    padding-top: 20px;
  }

  .about4 .list .item {
    border-radius: 10px;
  }

  .pd2 {
    padding: 0 0 25px;
  }

  .pd2 .list {
    margin-top: 30px;
  }

  .pd2 .item {
    padding: 0 5%;
  }

  .pd2 .item:nth-last-child(n+2) {
    margin-bottom: 30px;
  }

  .pd2 .item:nth-of-type(2n) {
    flex-direction: row-reverse;
  }

  .pd2 .item .zuo {
    width: 100%;
    padding: 54px 25px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.40);
    box-shadow: 0 5px 16px 0 rgba(31, 38, 135, 0.05);
  }

  .pd2 .item .zuo .t2 {
    margin-top: 7px;
  }

  .pd2 .item .zuo .t3 {
    margin-top: 29px;
    letter-spacing: -1px;
  }

  .pd2 .item .zuo .t4 {
    letter-spacing: 0.306px;
  }

  .pd2 .item .zuo .line {
    width: 100%;
    height: 1px;
    margin: 18px 0;
  }

  .pd2 .item .zuo .t6 {
    letter-spacing: 0.263px;
  }

  .pd2 .you {
    width: 100%;
    margin-top: 60px;
  }

  .pd2 .you .hero-block {
    width: 100%;
    height: 248px;
  }

  .pd2 .you .hero-block [hero-block-wrapper] {
    width: 100%;
    height: 100%;
  }

  .hero-block [hero-block-top] {
    width: 100%;
    height: 100%;
  }

  .pd2 .you .pic1 {
    left: 4%;
    top: 2%;
    width: 100%;
    height: 104%;
    background: linear-gradient(112deg, #E3F8F3 12.79%, #5FA7B4 92.24%), #5BA5B2;
    clip-path: polygon(19% 0%, 86% 0%, 100% 12%, 99% 84%, 88% 96%, 0% 86%, 1% 21%);
  }

  .pd2 .you .pic2 {
    width: 100%;
    clip-path: polygon(19% 0%, 86% 0%, 100% 12%, 99% 84%, 88% 96%, 0% 86%, 1% 21%);
  }

  .pd2 .item:nth-of-type(2n) .you .pic1 {
    left: -4%;
    clip-path: polygon(80% 0, 100% 15%, 100% 88%, 16% 98%, 3% 90%, 0 0);
  }

  .pd2 .item:nth-of-type(2n) .you .pic2 {
    clip-path: polygon(80% 0, 100% 15%, 100% 88%, 16% 98%, 3% 90%, 0 0);
  }

  .pd3 .main {
    padding: 31px 0 70px;
  }

  .pd3 .zuo {
    width: 100%;
  }

  .pd3 .zuo .ul {
    margin-top: 13px;
  }

  .pd3 .zuo .li {
    display: flex;
    flex-wrap: wrap;
    padding: 8px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.20);
  }

  .pd3 .zuo .li:nth-last-child(n+2) {
    margin-bottom: 8px;
  }

  .pd3 .zuo .li .icon {
    margin-right: 6px;
    width: 10px;
  }

  .pd3 .zuo .li .txt {
    flex: 1;
  }

  .pd3 .zuo .li .txt .t2 {
    line-height: 10px;
  }

  .pd3 .zuo .li .txt .t3 {
    margin-top: 4px;
  }

  .pd3 .you {
    width: 100%;
    margin: 40px 0 0;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .pd3 .you .pic {
    width: 160px;
  }

  .pd3 .you .icon {
    width: 170px;
    margin-left: -5px;
  }

  @keyframes pd3Float {

    0%,
    100% {
      transform: translateY(0);
    }

    50% {
      transform: translateY(-8px);
    }
  }

  .pd4 .list {
    padding: 59px 0 25px;
  }

  .pd4 .item {
    margin-bottom: 25px;
    padding: 48px 8%;
    border-radius: 10px;
    background: linear-gradient(0deg, #EFF6FF 0%, #EFF6FF 100%);
    box-shadow: 0 5px 16px 0 rgba(31, 38, 135, 0.05);
  }

  .pd4 .item:nth-child(2) {
    background: linear-gradient(0deg, #EDFBFF 0%, #EDFBFF 100%), linear-gradient(135deg, rgba(239, 246, 255, 0.50) 0%, rgba(238, 242, 255, 0.50) 100%), #FAFFFF;
  }

  .pd4 .item:nth-child(3) {
    background: linear-gradient(0deg, #DAEDEF 0%, #DAEDEF 100%), linear-gradient(135deg, rgba(240, 238, 255, 0.50) 0%, rgba(250, 245, 255, 0.50) 100%), #FAFFFF;
  }

  .pd4 .item .zuo {
    width: 100%;
  }

  .pd4 .item .t2 {
    margin: 37px 0;
  }

  .pd4 .item .ul {
    gap: 8px;
  }

  .pd4 .item .ul .li {
    padding: 8px 6px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.80);
    backdrop-filter: blur(3px);
  }

  .pd4 .item .ul .li .t4 {
    margin-top: 2px;
  }

  .pd4 .item .you {
    right: 2vw;
    top: 2vw;
    transform: none;
    width: 90px;
  }

  .home1 {
    width: 100%;
  }

  .bg video {
    width: 100%;
    height: 100%;
  }

  /* 1. 底层容器：放置星空图片 (将被揭示的内容) */
  #media-container {
    width: 100%;
    height: 100%;
  }

  #bg-image {
    width: 100%;
    height: 100%;
  }

  /* 2. 中间层：SVG 遮罩层 */
  #mask-layer {
    width: 100%;
    height: 100%;
  }

  .home2 {
    padding: 15px 0 90px;
  }

  .home2 .C-title .k2 {
    margin: 5px 0 10px;
  }

  .yearSwiper {
    width: 100%;
    border-bottom: 1px solid #D9D9D9;
  }

  .yearSwiper .swiper-slide {
    padding: 15px 0;
  }

  .home2 .picSwiper {
    width: 100%;
    padding: 48px 0 19px;
  }

  .home2 .picSwiper .swiper-slide {
    width: 210px;
  }

  .home2 .picSwiper .swiper-slide img {
    /* filter: blur(1px); */
    filter: blur(0);
  }

  .home2 .infoSwiper {
    width: 100%;
  }

  .home2 .infoSwiper .swiper-slide {
    align-items: flex-end;
  }

  .home2 .infoSwiper .zuo {
    width: 100%;
  }

  .home2 .infoSwiper .zuo .li {
    margin-top: 8px;
  }

  .home2 .infoSwiper .you {
    padding-top: 53px;
  }

  .home2 .infoSwiper .you .li {
    padding: 0 10px;
    min-width: 44px;
  }

  .home2 .infoSwiper .you .li:nth-last-child(n+2) {
    border-right: 1px solid #D9D9D9;
  }

  .home2 .infoSwiper .you .li .t4 {
    margin-top: 3px;
  }

  .sbtn1 {
    width: 21px;
    top: 50%;
  }

  .home3 .swiper {
    height: 700px;
    border-radius: 20px;
  }

  .home3 .swiper::after {
    width: 100%;
    height: 112px;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.60) 0%, rgba(0, 0, 0, 0.00) 100%);
  }

  .home3 .swiper .intr {
    width: 100%;
    height: 100%;
    top: 0;
    padding: 57px 20px;
    align-items: flex-start;
    justify-content: flex-start;
  }

  .home3 .swiper .t2 {
    margin: 5px 0 9px;
  }

  .home3 .swiper .t3 {
    width: 100%;
  }

  .home3 .swiper .C-btn2 {
    margin-top: 16px;
  }

  .home3 .swiper .pic {
    width: 80%;
    right: 10%;
    max-height: 400px;
    /* position: static; */
  }

  .home3 .swiper-pagination {
    top: 32px;
    --swiper-pagination-bullet-size: 4px;
    --swiper-pagination-bullet-horizontal-gap: 2px;
  }

  .home4 {
    padding: 99px 0 70px;
  }

  .home4 .news-list {
    margin-top: 25px;
    gap: 15px;
  }

  .home4 .news-list .item {
    border-radius: 15px;
  }

  .home4 .news-list .item .bg {
    border-radius: 15px;
    height: 190px;
  }

  .home4 .news-list .item .bg::after {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(91, 165, 178, 0.00) 49.52%, #5BA5B2 100%), linear-gradient(180deg, rgba(0, 0, 0, 0.00) 35.38%, rgba(0, 0, 0, 0.40) 88.12%), linear-gradient(0deg, rgba(0, 0, 0, 0.20) 0%, rgba(0, 0, 0, 0.20) 100%);
  }

  .home4 .news-list .item .intr {
    padding: 14px 10px 37px;
  }

  .home4 .news-list .item .intr .t2 {
    margin-top: 5px;
  }
}