@media screen and (max-width:768px) {
  header .menu {
    position: fixed;
    right: 0;
    top: var(--head);
    width: max-content;
    height: auto;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-end;
    padding: 20px;
    opacity: 0;
    -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;
    border-radius: 30px;
  }

  header.open .menu {
    opacity: 1;
    pointer-events: visible;
  }

  header .C-btn {
    width: 200px;
    padding: 10px 13px;
  }

  header.open .link {
    animation: fadeInUp 1s forwards;
  }

  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: 60px;
  }

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

  .C-wrap {
    width: 90%;
  }

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

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

  .head1 .logo {
    width: 100px;
  }

  .head1 .menu {
    gap: 10px;
    height: auto;
  }

  .head1 .link {
    height: auto;
  }

  .C-btn {
    min-width: 64px;
    padding: 5px 13px;
    border-radius: 40px;
    backdrop-filter: blur(1px);
  }

  .C-btn.theme2 {
    border: 1px solid rgba(255, 255, 255, 0.30);
    backdrop-filter: blur(1px);
  }

  .C-btn::after {
    top: 100%;
    width: 100%;
    padding-top: 100%;
    border-radius: 100%;
  }

  .head1 .shares {
    gap: 4px;
    margin-left: 10px;
  }

  .head1 .shares .icon {
    width: 26px;
  }

  .head1 .shares .icon::after {
    width: 100%;
    height: 100%;
  }

  @keyframes show1s {
    0% {
      opacity: 0;
    }
  }

  .foot1 {
    width: 95%;
    height: 1px;
    background: linear-gradient(90deg, #627FFE 0%, #A0FFBB 100%);
  }

  .foot2 {
    padding: 15px 0;
    gap: 20px;
  }

  .foot2 .zuo .t1 {
    gap: 10px 20px;
    margin-bottom: 30px;
  }

  /* -----------------------------------------Homepage-------------------------------------- */
  .bg video {
    height: 100%;
  }

  .home1 .intr {
    width: 100%;
    height: 100%;
    padding: 60px 0;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
  }

  .home1 .intr .C-wrap {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
  }

  .home1 .intr .t1 {
    width: 100%;
  }

  .home1 .intr .t1 svg {
    width: 100%;
    height: 100%;
  }

  .home1 .intr .t2 {
    width: 213px;
    margin-top: 20px;
  }

  .home2 .bg video {
    object-position: 30%;
  }

  .home2 .bg .mask {
    display: none;
    width: 395px;
    height: 100%;
    background: linear-gradient(267deg, #12192C 2.79%, #1B202F 50.25%, rgba(27, 32, 47, 0.00) 90%);
  }

  .home2 .intr {
    right: 0;
    width: 100%;
    height: 100%;
    padding: 0 5%;
  }

  .home2 .intr .t1 {
    letter-spacing: -1px;
    background-image: linear-gradient(106deg, #F1F1F1 0.48%, #9EFBBD 89%);
  }

  .home2 .intr .t2 {
    margin-top: 10px;
    width: 80%;
  }

  .C-title1 {
    left: 30px;
    top: 35px;
  }

  .C-title1 .k1 {
    font-size: 32px;
  }

  .C-title1 .k2 {
    display: flex;
  }

  .C-title1 .k2 span {
    flex: 1;
    height: 1px;
  }

  .home-pd-intr {
    width: 100%;
    height: 100%;
  }

  .home-pd-intr .text {
    padding: 50px 5%;
  }

  .home-pd-intr .t2 {
    width: 100%;
  }

  .home-pd-intr .t3 {
    width: 100%;
    margin-top: 14px;
    font-size: 22px;
  }

  .home-pd-intr .t3 span {
    background-image: linear-gradient(90deg, #FFF 50%, rgba(255, 255, 255, 0.20) 100%);
  }

  .home3 .bg img {
    object-position: 70%;
  }

  .home4 .bg img {
    object-position: 10%;
  }

  .home5 .bg img {
    object-position: 70%;
  }

  .home4 .text .t3 {
    width: 100%;
  }

  .home4 .text .t3 {
    margin-bottom: 14px;
  }

  .home5 .text .t3 {
    margin-bottom: 14px;
  }

  .home6 .intr {
    width: 100%;
    height: 100%;
  }

  .home6 .list {
    padding: 0 5% 37px;
    gap: 20px;
  }

  .home6 .list .item {
    backdrop-filter: blur(2px);
  }

  .home6 .list .item .t2 {
    margin-top: 6px;
  }

  .home6 .list .item .info1 {
    padding: 16px 20px 11px;
  }

  .home6 .list .item .info2 {
    padding: 16px 20px 11px;
    width: 100%;
    height: 100%;
  }

  .home6 .list .item .info2 .t1 {
    transform: translateX(-50px);
  }

  .home7 {
    padding: 125px 0 28px;
  }

  .home7 .list .item {
    height: 450px;
  }

  .home7 .list .item .info1 {
    width: 100%;
    height: 100%;
    display: flex;
    flex-wrap: wrap;
  }

  .home7 .list .item .t1 {
    letter-spacing: 1px;
  }

  .home7 .list .item .info2 {
    width: 100%;
    height: 100%;
    padding: 20px;
  }

  .home7 .list .item .t2 {
    margin: 2px 0 4px;
    letter-spacing: 0.8px;
  }

  .home7 .list .item .t3 {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .home7 .list .item .t3 span {
    padding: 2px 8px;
    border-radius: 10px;
    backdrop-filter: blur(1px);
  }

  .home7 .list .item .t4 {
    text-shadow: 0 1px 0 #526BC7;
  }

  .home7 .list .item .t5 {
    width: 100%;
    margin-top: 4px;
  }

  .home7 .C-btn {
    margin-top: 20px;
  }

  .home8 {
    padding: 133px 0 78px;
  }

  .home8 .zuo {
    width: 100%;
  }

  .home8 .you {
    width: 100%;
    margin-top: 20px;
    font-size: 18px;
  }

  .home8 .you .item .textbox span:nth-child(2) {
    background-image: linear-gradient(90deg, #627FFE 0%, #A0FFBB 100%);
  }

  .home8 .you .item .textbox .icon {
    left: 100%;
    top: 50%;
    transform: translate(-21px, -50%);
    margin-left: 21px;
  }

  .home8 .you .item:hover .textbox .icon {
    transform: translate(0, -50%);
  }

  .home8 .you .item .textbox .icon img {
    height: 32px;
  }

  .home9 {
    padding-bottom: 22px;
  }

  .home9 .C-wrap {
    transform: none;
  }

  .home9 .zuo .t1::after {
    margin: 0 8px;
    width: 20px;
    height: 1px;
  }

  .home9 .shares {
    gap: 9px;
    margin-top: 20px;
  }

  .home9 .shares .icon {
    width: 26px;
  }

  .home10 {
    padding: 0 0 25px;
  }

  .home10 .pic-list {
    gap: 12px;
    padding: 0 14px;
  }

  .home10 .pic-list .pic:nth-child(2) {
    display: none;
  }

  .home10 .pic-list .pic:nth-child(3) {
    display: none;
  }

  .home10 .ul {
    padding: 0 30px;
    gap: 30px;
    top: auto;
    bottom: 40px;
    width: 100%;
    flex-direction: column;
    transform: none;
  }

  .home10 .ul .li {
    width: max-content;
    line-height: 150%;
    letter-spacing: -1px;
  }

  .home10 .ul .li::after {
    width: 42px;
    height: 42px;
    bottom: 0;
    right: auto;
    left: 100%;
  }

  /* -----------------------------------------Research article page-------------------------------------- */
  .page-article {
    background: #000;
    color: #fff;
  }

  .article-hero {
    padding: 120px 0 40px;
  }

  .article-hero__grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .article-hero__text h1 {
    font-size: 32px;
    letter-spacing: -0.5px;
  }

  .article-subtitle {
    max-width: 100%;
  }

  .article-tag {
    font-size: 12px;
    padding: 8px 14px;
    letter-spacing: 0.4px;
  }

  .article-meta {
    gap: 8px;
    margin-top: 16px;
  }

  .article-hero__badge {
    position: static;
    margin-top: 16px;
    padding: 16px;
    border-radius: 12px;
  }

  .article-hero__badge strong {
    font-size: 22px;
  }

  .article-summary {
    padding: 32px 0 24px;
  }

  .article-summary__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .article-card {
    padding: 18px 16px;
    border-radius: 14px;
  }

  .article-card__title {
    font-size: 14px;
    margin-bottom: 10px;
  }

  .article-card__eyebrow {
    font-size: 13px;
  }

  .article-lead {
    font-size: 16px;
  }

  .article-list li {
    padding-left: 18px;
  }

  .article-list li::before {
    top: 8px;
    width: 6px;
    height: 6px;
  }

  .article-card--stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .article-body {
    padding: 24px 0 40px;
  }

  .article-body__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .article-toc {
    position: static;
  }

  .article-card--toc ol {
    gap: 10px;
    padding-left: 16px;
  }

  .article-content {
    gap: 16px;
  }

  .article-content h2 {
    font-size: 22px;
  }

  .article-quote {
    font-size: 16px;
    padding: 16px;
    border-radius: 12px;
    border-left-width: 6px;
  }

  .article-callouts {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .article-media {
    margin-top: 18px;
    gap: 8px;
  }

  .article-media__frame {
    border-radius: 14px;
  }

  .article-media__caption {
    font-size: 14px;
  }

  .article-cta {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 16px;
    gap: 12px;
  }

  .article-related {
    padding: 24px 0 40px;
  }

  .article-related__head {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }

  .article-related__grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .article-card--link {
    border-radius: 14px;
  }
}