@media (max-width: 900px) {
  html, body, .viewport, .slide-fx, .slide.active {
    background: #f5f6fa;
  }
  .slide.is-mobile-skip {
    display: none !important;
  }

  .slide-copy-desk,
  .slide-visual {
    display: none !important;
  }

  .slide-flow {
    display: flex !important;
    flex-direction: column;
    gap: 16px;
    position: relative;
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: calc(16px + env(safe-area-inset-top, 0px)) 16px calc(16px + env(safe-area-inset-bottom, 0px));
    overflow-x: hidden;
    background: transparent;
    pointer-events: auto;
  }

  .m-kicker,
  .m-title,
  .m-sub,
  .m-p,
  .m-lead,
  .m-tag,
  .m-card,
  .m-cta,
  .m-stat {
    white-space: normal;
    word-break: normal;
    overflow-wrap: break-word;
  }

  .m-kicker {
    align-self: stretch;
    box-sizing: border-box;
    margin: 0;
    padding: 14px 18px;
    background: #2433FF;
    color: #fff !important;
    font-family: "Alimama ShuHeiTi", "阿里妈妈数黑体 Bold", "Noto Sans SC", sans-serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0;
    line-height: 1.2;
    border-radius: 16px;
  }

  .m-title {
    margin: 0;
    font-size: 28px;
    font-weight: 650;
    line-height: 1.3;
    color: #111;
  }

  .m-sub {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.4;
    color: #2433FF;
  }

  .m-lead,
  .m-p {
    margin: 0;
    font-size: 16px;
    line-height: 1.75;
    color: #3d4450;
  }

  .m-lead { font-size: 18px; color: #1d2129; }
  .m-brand,
  .m-lead strong,
  .m-p strong,
  .m-about strong,
  .m-card strong,
  .m-p a {
    color: #2433FF !important;
    font-weight: 700 !important;
  }
  .m-p a { text-decoration: underline; }

  .m-section {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    color: #2433FF;
  }

  .m-panel {
    background: #fff;
    border-radius: 16px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow: hidden;
  }
  .m-case-intro {
    gap: 0;
  }
  .m-case-intro .m-title {
    font-size: 22px;
    font-weight: 650;
    line-height: 1.35;
    color: #111;
  }
  .m-case-intro .m-title + .m-title {
    margin-top: 4px;
  }
  .m-case-intro .m-lead,
  .m-case-intro .m-p {
    margin-top: 12px;
    font-size: 15px;
    line-height: 1.7;
    color: #3d4450;
  }
  .m-case-intro .m-tags {
    margin-top: 12px;
  }
  .m-case-intro .m-cta-text {
    margin-top: 12px;
    align-self: center;
    text-align: center;
  }
  .m-case-shot {
    padding: 12px;
  }
  .m-mock-swipe {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 12px;
    margin: 0;
    padding: 0 2px 2px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    overscroll-behavior-x: contain;
  }
  .m-mock-swipe::-webkit-scrollbar { display: none; }
  .m-mock {
    flex: 0 0 auto;
    width: min(58vw, 220px);
    aspect-ratio: 375 / 812;
    overflow: hidden;
    box-sizing: border-box;
    border: 4px solid #000;
    border-radius: 16px;
    background: #000;
    scroll-snap-align: start;
  }
  .m-mock img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    pointer-events: none;
  }
  .m-mock-swipe.is-pc {
    align-items: flex-start;
  }
  .m-mock.is-pc {
    flex: 0 0 100%;
    width: 100%;
    aspect-ratio: auto;
    height: auto;
    background: #fff;
  }
  .m-mock.is-pc img {
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: top center;
  }
  .m-case-caps .m-section,
  .m-case-extra .m-section {
    font-size: 16px;
    font-weight: 650;
    color: #111;
  }
  .m-case-extra {
    gap: 12px;
  }
  .slide[data-page="13"] .m-case-extra .m-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }
  .slide[data-page="13"] .m-case-extra .m-card {
    padding: 12px 8px;
  }
  .slide[data-page="13"] .m-case-extra .m-card h3 {
    font-size: 15px;
    white-space: nowrap;
  }
  .slide[data-page="13"] .m-case-extra .m-card p {
    font-size: 11px;
    line-height: 1.35;
  }
  .m-partners {
    margin: 0;
    overflow: hidden;
    border-radius: 12px;
  }
  .m-partners img {
    display: block;
    width: 100%;
    height: auto;
  }
  .m-about {
    background: #fff;
    border-radius: 16px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .m-about .m-lead,
  .m-about .m-p {
    margin: 0;
  }

  .m-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
  }

  .m-tag {
    padding: 6px 12px;
    border-radius: 999px;
    background: #ecebff;
    color: #2433FF;
    font-size: 12px;
    font-weight: 500;
  }

  .m-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 0;
  }
  .slide[data-page="4"] .m-card-media,
  .slide[data-page="4"] .m-card-media.m-visual-stage {
    margin-top: 28px;
  }
  .m-cards.is-swipe {
    flex-direction: row;
    align-items: stretch;
    gap: 16px;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    overscroll-behavior-x: contain;
  }
  .m-cards.is-swipe::-webkit-scrollbar { display: none; }
  .m-cards.is-swipe .m-card {
    flex: 0 0 min(78%, 300px);
    scroll-snap-align: start;
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding-bottom: 16px;
    overflow: hidden;
    position: relative;
  }
  .m-case-caps .m-cards.is-swipe {
    margin: 0 -4px;
    padding: 0 4px;
  }
  .m-case-caps .m-card {
    background: #f5f6fa;
  }
  .m-card.has-corner h3,
  .m-card.has-corner p {
    position: relative;
    z-index: 1;
    max-width: 92%;
  }
  .m-card-corner {
    position: absolute;
    right: 0;
    bottom: 0;
    width: min(72%, 280px);
    height: auto;
    max-height: 68%;
    object-fit: contain;
    object-position: right bottom;
    pointer-events: none;
    z-index: 0;
  }
  .m-cards .m-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  .m-card-media {
    position: relative;
    margin: 12px -16px -16px;
    width: auto;
    overflow: hidden;
    background: transparent;
    min-height: 0;
  }
  .m-card-media.m-visual-stage {
    margin: 12px -16px -16px;
    width: auto;
    flex: 0 0 auto;
    height: auto;
  }
  .m-card-media img {
    display: block;
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: cover;
    object-position: top center;
  }
  .m-card-media.m-visual-stage img {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
  }

  .m-card {
    background: #fff;
    border-radius: 16px;
    padding: 16px;
  }
  .m-card.has-corner {
    position: relative;
    overflow: hidden;
    min-height: 280px;
    padding: 16px 16px 140px;
  }
  .m-card h3 {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 600;
    color: #111;
  }
  .m-card p {
    margin: 0;
    font-size: 14px;
    line-height: 1.65;
    color: #5c6570;
  }

  .m-stack {
    gap: 22px;
  }
  .m-stack-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .m-stack-item h3 {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: #111;
  }
  .m-stack-icon {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    color: #2433FF;
    display: grid;
    place-items: center;
  }
  .m-stack-icon svg {
    width: 18px;
    height: 18px;
    display: block;
  }
  .m-stack-item p {
    margin: 0;
    font-size: 14px;
    line-height: 1.65;
    color: #5c6570;
  }
  .m-stack-item .m-card-media {
    margin: 4px 0 0;
    border-radius: 12px;
  }
  .m-cert-badges {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    margin-top: 4px;
  }
  .m-cert-badge {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
  }
  .m-cert-badge-icon {
    flex: 0 0 52px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: #F2F3F5;
    display: grid;
    place-items: center;
    overflow: hidden;
  }
  .m-cert-badge-icon img {
    width: 36px;
    height: 36px;
    object-fit: contain;
  }
  .m-cert-badge-label {
    font-size: 13px;
    font-weight: 500;
    color: #111;
    line-height: 1.3;
  }

  .m-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 0;
  }
  .m-stats.is-triple,
  .m-stats:has(> .m-stat:nth-child(3):last-child) {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }
  .m-stats.is-triple .m-stat,
  .m-stats:has(> .m-stat:nth-child(3):last-child) .m-stat {
    padding: 12px 6px;
  }
  .m-stats.is-triple .m-stat-num,
  .m-stats:has(> .m-stat:nth-child(3):last-child) .m-stat-num {
    font-size: 20px;
  }
  .m-stats.is-triple .m-stat-unit,
  .m-stats:has(> .m-stat:nth-child(3):last-child) .m-stat-unit {
    font-size: 12px;
  }
  .m-stats.is-triple .m-stat > span,
  .m-stats:has(> .m-stat:nth-child(3):last-child) .m-stat > span {
    font-size: 11px;
    line-height: 1.3;
  }
  .m-stat {
    background: #fff;
    border-radius: 16px;
    padding: 14px;
  }
  .m-stat strong {
    display: flex;
    flex-wrap: nowrap;
    align-items: baseline;
    gap: 2px;
    white-space: nowrap;
    color: #2433FF;
    line-height: 1.1;
  }
  .m-stat-num {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.03em;
  }
  .m-stat-unit {
    font-size: 16px;
    font-weight: 600;
    flex-shrink: 0;
  }
  .m-stat > span {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: #6b7280;
  }

  .m-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    margin: 0;
    border-radius: 999px;
    background: #2433FF;
    color: #fff !important;
    text-decoration: none !important;
    font-size: 15px;
    font-weight: 600;
  }
  .m-cta.m-cta-text {
    display: flex;
    align-self: center;
    justify-content: center;
    height: auto;
    width: 100%;
    padding: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
    color: #9aa0a8 !important;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.4;
    text-align: center;
  }

  .m-visual-stage {
    position: relative;
    width: 100%;
    height: auto;
    flex: 0 0 auto;
    margin: 0;
    overflow: hidden;
    background: transparent;
  }
  .m-visual-stage img {
    position: absolute;
    display: block;
    object-fit: contain;
    object-position: center top;
    pointer-events: none;
  }

  .m-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 0;
    width: 100%;
  }
  .m-contact a {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(255,255,255,0.12);
    color: #fff;
    text-decoration: none;
  }
  .m-contact-icon {
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    color: #fff;
  }
  .m-contact-icon svg {
    width: 28px;
    height: 28px;
    display: block;
  }
  .m-contact-copy {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
  }
  .m-contact span { font-size: 13px; opacity: 0.8; }
  .m-contact b {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.35;
    word-break: break-word;
  }

  .slide[data-layout="cover"],
  .slide[data-layout="cover"] .slide-fx,
  .slide[data-layout="cover"].active {
    background: #2433FF;
  }
  .slide[data-layout="cover"] .slide-flow {
    background: transparent;
    min-height: calc(100dvh - 40px);
    justify-content: flex-end;
    padding-top: calc(16px + env(safe-area-inset-top, 0px));
  }
  .slide[data-layout="cover"] .m-kicker,
  .slide[data-layout="cover"] .m-title,
  .slide[data-layout="cover"] .m-sub,
  .slide[data-layout="cover"] .m-p,
  .slide[data-layout="cover"] .m-lead {
    color: #fff;
  }
  .slide[data-layout="cover"] .m-sub { color: rgba(255,255,255,0.86); }
  .slide[data-layout="cover"] .m-visual-stage {
    margin-bottom: 0;
    border-radius: 16px;
  }

  .slide.has-cover-bg,
  .slide.has-cover-bg .slide-fx,
  .slide.has-cover-bg.active {
    background: #111;
    min-height: 100dvh;
  }
  .m-cover-bg {
    display: none;
  }
  .slide.has-cover-bg .m-cover-bg {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 0;
    pointer-events: none;
  }
  .slide.has-cover-bg .slide-flow {
    z-index: 1;
    min-height: 100dvh;
    padding-top: calc(16px + env(safe-area-inset-top, 0px));
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    justify-content: flex-end;
  }
  .slide.has-cover-bg .slide-flow.is-home,
  .slide.has-cover-bg .slide-flow.is-cases {
    justify-content: flex-start;
    align-items: center;
    text-align: center;
    padding-top: 22vh;
    padding-left: 16px;
    padding-right: 16px;
    container-type: inline-size;
  }
  .slide.has-cover-bg .slide-flow.is-cases {
    padding-top: 28vh;
  }
  .slide-flow.is-home .m-title,
  .slide-flow.is-cases .m-title {
    margin: 0 0 16px;
    width: 100%;
    max-width: 100%;
    font-family: "Alimama ShuHeiTi", "阿里妈妈数黑体 Bold", "Noto Sans SC", sans-serif !important;
    font-weight: 700;
    font-size: min(56px, calc((100vw - 32px) / 9));
    font-size: min(56px, calc(100cqw / 9));
    line-height: 1.22;
    letter-spacing: 0;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    color: #fff;
  }
  .slide.has-cover-bg .is-home .m-lead,
  .slide.has-cover-bg .is-home .m-sub,
  .slide.has-cover-bg .is-home .m-p,
  .slide.has-cover-bg .is-cases .m-lead,
  .slide.has-cover-bg .is-cases .m-sub,
  .slide.has-cover-bg .is-cases .m-p {
    text-align: center;
    max-width: none;
    font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
    font-weight: 400;
    font-size: min(28px, 3.6vw);
    line-height: 1.4;
    color: rgba(255,255,255,0.95);
  }

  .slide.has-cover-bg .slide-flow.is-contact {
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
    text-align: center;
    min-height: 100dvh;
    padding-top: calc(16px + env(safe-area-inset-top, 0px));
    padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  }
  .slide-flow.is-contact .m-contact-top {
    background: none;
    border-radius: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    width: 100%;
  }
  .slide-flow.is-contact .m-title {
    margin: 0;
    width: 100%;
    max-width: none;
    font-family: "Alimama ShuHeiTi", "阿里妈妈数黑体 Bold", "Noto Sans SC", sans-serif !important;
    font-weight: 700;
    font-size: 28px;
    line-height: 1.25;
    letter-spacing: 0;
    white-space: normal;
    overflow: visible;
    text-align: center;
    color: #fff;
  }
  .slide-flow.is-contact .m-sub {
    margin: 0;
    font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
    color: rgba(255,255,255,0.8);
    text-align: center;
  }
  .slide-flow.is-contact .m-contact {
    margin-top: 16px;
    width: 100%;
  }
  .slide-flow.is-contact .m-contact a {
    justify-content: flex-start;
    text-align: left;
  }
  .slide-flow.is-contact .m-contact-copy {
    align-items: flex-start;
  }
  .slide-flow.is-contact .m-qrs {
    display: grid;
    grid-template-columns: 108px 108px;
    justify-content: center;
    gap: 10px;
    width: 100%;
    margin: 16px 0 0;
  }
  .slide-flow.is-contact .m-qr {
    width: 108px;
    height: 108px;
    padding: 8px;
    border-radius: 12px;
    background: #fff;
    overflow: hidden;
  }
  .slide-flow.is-contact .m-qr img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
  }
}