/* Local mobile body study. Desktop, shared header/footer and film controls retain
   their existing geometry. Each detail story uses a reading-sized column. */
@media (max-width: 760px) {
  body.product-detail .detail-main {
    box-sizing: border-box;
    width: 100%;
    max-width: 560px;
    margin-top: 100px;
    padding: 22px clamp(20px, 5.6vw, 32px) 30px;
    border-radius: 0;
    background: transparent;
    border: 0;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  body.product-detail .detail-main :is(section, article, figure, nav, div) { min-width: 0; }
  body.product-detail .detail-main :is(h1, h2, h3) {
    word-break: keep-all;
    overflow-wrap: break-word;
    text-wrap: balance;
    letter-spacing: -.035em;
  }
  body.product-detail .detail-main p {
    font-size: 14px;
    line-height: 1.8;
    text-wrap: pretty;
    overflow-wrap: break-word;
  }
  body.product-detail .detail-wayfinding { gap: 0; padding-bottom: 12px; }
  body.product-detail .detail-breadcrumb { font-size: 10px; gap: 0 10px; line-height: 1.5; }
  body.product-detail .detail-breadcrumb li { gap: 10px; }
  body.product-detail .detail-hero {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    gap: 30px;
    padding: 30px 0 42px;
  }
  body.product-detail .detail-main .detail-title {
    margin-top: 16px;
    font-size: clamp(28px, 8vw, 32px);
    font-weight: 600;
    line-height: 1.08;
    letter-spacing: -.05em;
  }
  body.product-detail .detail-main .detail-promise {
    margin-top: 20px;
    font-size: 17px;
    line-height: 1.36;
  }
  body.product-detail .detail-main .detail-summary { margin-top: 16px; font-size: 14px; }
  body.product-detail .detail-main .detail-status { margin-top: 14px; font-size: 12px; line-height: 1.65; }
  body.product-detail .detail-read { margin-top: 20px; font-size: 12px; }
  body.product-detail .detail-visual { width: 100%; box-sizing: border-box; padding: 18px 14px 20px; }
  body.product-detail .detail-core { min-height: 136px; padding: 20px 0; font-size: 18px; gap: 16px; }
  body.product-detail .detail-core > .detail-icon { width: 50px; height: 50px; }
  body.product-detail .detail-visual-label { font-size: 10px; line-height: 1.55; letter-spacing: .06em; }
  body.product-detail .flow-label { font-size: 13px; line-height: 1.55; }

  /* The authored hero diagrams keep their connector coordinate system.
     Move the tiny index out of the text column instead of shrinking labels. */
  body.product-detail .detail-main .product-motion { padding: 22px 0; border: 0; border-block: 1px solid #b2c0b52e; border-radius: 0; background: transparent; }
  body.product-detail .detail-main .product-motion figcaption h2 { font-size: 17px; line-height: 1.45; }
  body.product-detail .product-motion-board { height: 340px; margin-top: 24px; }
  body.product-detail .product-motion-nodes li {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: 28px auto;
    height: 88px;
    padding: 12px 6px 9px;
    gap: 5px;
  }
  body.product-detail .product-motion-number { position: absolute; top: 6px; left: 6px; font-size: 8px; }
  body.product-detail .product-motion-nodes :is(.detail-icon, strong) { grid-column: 1; }
  body.product-detail .product-motion-nodes strong { font-size: 13px; line-height: 1.4; overflow-wrap: break-word; }
  body.product-detail .product-motion-center { font-size: 13px; gap: 8px; }
  body.product-detail .product-motion-tool { min-height: 154px; padding: 16px 7px; gap: 10px; }
  body.product-detail .product-motion-tool strong { font-size: 13px; }
  body.product-detail .product-motion-tool span { font-size: 13px; }
  body.product-detail .content-motion-inputs { gap: 12px; }
  body.product-detail .content-motion-input strong { font-size: 13px; line-height: 1.5; }
  body.product-detail .content-motion-frame { width: 80%; }
  body.product-detail .content-motion-studio strong { font-size: 14px; line-height: 1.5; }
  body.product-detail .content-motion-studio span { font-size: 13px; line-height: 1.6; }
  body.product-detail .content-motion-outcomes { gap: 10px; font-size: 13px; }

  /* Messenger: retain the paired encounters, with a readable timeline below. */
  body.product-detail[data-product='community-messenger'] .detail-flow { gap: 24px 18px; }
  body.product-detail[data-product='community-messenger'] .detail-chapters { padding-left: 18px; }
  body.product-detail[data-product='community-messenger'] .detail-chapter {
    grid-template-columns: 22px 30px minmax(0, 1fr);
    gap: 14px 12px;
    padding: 24px 0;
  }
  body.product-detail[data-product='community-messenger'] .detail-chapter::before { left: -23px; top: 36px; }

  /* Daily Apps: three tools become three compact, aligned horizontal entries. */
  body.product-detail[data-product='daily-apps'] .detail-core { min-height: 100px; align-items: center; gap: 14px; }
  body.product-detail[data-product='daily-apps'] .detail-flow { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  body.product-detail[data-product='daily-apps'] .detail-flow li {
    display: grid;
    grid-template-columns: 22px 32px minmax(0, 1fr);
    align-items: center;
    min-height: 68px;
    margin-top: 0;
    padding: 12px 10px;
    gap: 12px;
  }
  body.product-detail[data-product='daily-apps'] .detail-flow .detail-icon { width: 30px; height: 30px; }
  body.product-detail[data-product='daily-apps'] .detail-chapters { gap: 16px; }
  body.product-detail[data-product='daily-apps'] .detail-chapter { padding: 22px 16px 24px; }

  /* Content: remove the desktop staircase so every row has the same measure. */
  body.product-detail[data-product='content'] .detail-core { min-height: 100px; gap: 14px; }
  body.product-detail[data-product='content'] .detail-flow { padding-left: 0; border-left: 0; }
  body.product-detail[data-product='content'] .detail-flow li:nth-child(n) {
    margin-left: 0;
    grid-template-columns: 20px 28px minmax(0, 1fr);
    padding: 12px 10px;
    gap: 10px;
  }
  body.product-detail[data-product='content'] .flow-label { font-size: 14px; }

  body.product-detail .detail-main .detail-section-title,
  body.product-detail .detail-overview.detail-declaration .detail-section-title {
    max-width: 100%;
    font-size: clamp(26px, 7vw, 28px);
    font-weight: 600;
    line-height: 1.35;
  }
  body.product-detail .detail-overview.detail-declaration { padding: 42px 0; margin: 8px 0 44px; }
  body.product-detail .detail-overview.detail-declaration > div { margin-top: 22px; gap: 22px; }
  body.product-detail .detail-overview.detail-declaration .detail-description { font-size: 14px; line-height: 1.85; }
  body.product-detail .detail-journey { padding: 4px 0 46px; }
  body.product-detail .detail-journey > header { margin-bottom: 20px; }
  body.product-detail .detail-chapter h3 { font-size: 17px; line-height: 1.4; }
  body.product-detail .detail-chapter p { font-size: 14px; line-height: 1.85; }
  body.product-detail .detail-model h2 { font-size: 17px; line-height: 1.4; }
  body.product-detail .detail-closing { padding: 44px 0 40px; }
  body.product-detail .detail-closing h2 { font-weight: 600; font-size: clamp(26px, 7vw, 28px); line-height: 1.35; }
  body.product-detail .detail-actions { flex-direction: column; align-items: flex-start; gap: 10px; margin-top: 24px; }
  body.product-detail :is(.detail-contact, .detail-back) { max-width: 100%; box-sizing: border-box; font-size: 12px; gap: 12px; }
  body.product-detail .detail-related-link { min-height: 94px; gap: 12px; }
  body.product-detail .detail-related-copy > strong { font-size: 17px; }
  body.product-detail .detail-related-copy > span { font-size: 13px; line-height: 1.65; }
  body.product-detail .detail-related-link > .detail-icon { width: 28px; height: 28px; }

  /* Portfolio: give the work and its source a full mobile reading width. */
  body.product-detail :is(.content-cases, .content-vision, .content-foundations, .content-portfolio, .content-studio, .content-ai-method) {
    margin-top: 48px;
    padding-top: 28px;
    scroll-margin-top: 104px;
  }
  body.product-detail .content-section-heading { margin-bottom: 24px; }
  body.product-detail .content-section-heading > h2 { margin-top: 16px; font-weight: 600; }
  body.product-detail .content-section-heading > p:not(.detail-section-label) { margin-top: 16px; font-size: 14px; line-height: 1.8; }
  body.product-detail .content-foundation-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  body.product-detail .content-foundation-merged { padding: 22px 14px; }
  body.product-detail .content-foundation > h3 { margin-top: 18px; font-size: 17px; line-height: 1.35; }
  body.product-detail .content-foundation > p { margin-top: 16px; font-size: 14px; }
  body.product-detail .content-foundation > small { font-size: 13px; line-height: 1.8; }
  body.product-detail .content-press-intro strong { font-size: 16px; line-height: 1.5; }
  body.product-detail .content-foundation-merged .content-press-cloud { width: 100%; max-width: 270px; }
  body.product-detail .content-foundation-merged .content-press-card:nth-child(n) .content-evidence-popover { width: 234px; max-width: 68vw; box-sizing: border-box; }
  body.product-detail .content-poster-grid { grid-template-columns: minmax(0, 1fr); max-width: 400px; gap: 20px; }
  body.product-detail .content-work { padding: 8px; }
  body.product-detail .content-work .content-source { font-size: 12px; line-height: 1.6; min-height: 44px; gap: 8px; }
  body.product-detail .content-method-steps { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  body.product-detail .content-method-step { padding: 22px 14px; }
  body.product-detail .content-method-step h3 { font-size: 17px; line-height: 1.4; }
  body.product-detail .content-method-step > p { font-size: 14px; line-height: 1.8; }
  body.product-detail .content-method-inputs span { font-size: 13px; line-height: 1.5; }
  body.product-detail .content-method-step:not(:last-child)::after { bottom: -28px; }
  body.product-detail .content-render-links { flex-direction: column; gap: 2px; }
  body.product-detail .content-render-links a { font-size: 13px; line-height: 1.6; }
  body.product-detail .content-studio-points { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  body.product-detail .content-flow-connector { height: 56px; margin-block: 14px; }
  body.product-detail .detail-main .content-convergence { padding: 20px 16px; font-size: 18px; line-height: 1.75; }
  body.product-detail .detail-main :is(.detail-visual, .detail-chapter, .detail-overview, .detail-model, .detail-closing, .detail-related-link, .content-foundation, .content-method-step, .content-work, .content-convergence) {
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }
  body.product-detail .detail-main :is(.detail-visual, .content-foundation, .content-method-step, .content-convergence) {
    border: 0;
    border-top: 1px solid #b2c0b52e;
    padding-inline: 0;
  }

}

@media (max-width: 359px) {
  body.product-detail .detail-main { padding-inline: 16px; }
  body.product-detail .detail-main .detail-title { font-size: 28px; }
  body.product-detail .detail-main .detail-promise { font-size: 17px; }
  body.product-detail .detail-breadcrumb { gap: 0 8px; }
  body.product-detail .detail-breadcrumb li { gap: 8px; }
  body.product-detail .detail-visual { padding-inline: 12px; }
  body.product-detail .content-foundation-merged { padding-inline: 12px; }
}

/* Revision6: a consistent body rhythm after the locked product hero.
   Each story keeps its own visual grammar, with restrained reading actions. */
@media (max-width: 760px) {
  body.product-detail .detail-main .detail-overview.detail-declaration { padding-block: 38px; margin-bottom: 42px; }
  body.product-detail .detail-main .detail-overview.detail-declaration > div { margin-top: 19px; gap: 20px; }
  body.product-detail .detail-main .detail-section-label { line-height: 1.7; letter-spacing: .07em; }
  body.product-detail .detail-main .detail-description { max-width: 38em; }
  body.product-detail .detail-main .detail-journey { padding-bottom: 46px; }
  body.product-detail .detail-main .detail-journey > header { margin-bottom: 25px; }
  body.product-detail .detail-main .detail-journey .detail-section-title { margin-top: 17px; }
  body.product-detail .detail-main .detail-chapter h3 { margin: 0; }
  body.product-detail .detail-main .detail-chapter p { max-width: 38em; margin-top: 0; }
  body.product-detail[data-product='community-messenger'] .detail-main .detail-chapter { padding-block: 27px; gap: 15px 12px; }
  body.product-detail[data-product='community-messenger'] .detail-main .detail-chapter > .chapter-index { padding-top: 4px; }
  body.product-detail[data-product='community-messenger'] .detail-main .detail-chapter > .detail-icon { width: 28px; height: 28px; }
  body.product-detail[data-product='daily-apps'] .detail-main .detail-chapters { gap: 0; }
  body.product-detail[data-product='daily-apps'] .detail-main .detail-chapter { padding: 26px 0; gap: 15px 12px; }
  body.product-detail .detail-main .detail-model { padding-block: 30px 34px; }
  body.product-detail .detail-main .detail-model > p:last-child { margin-top: 18px; max-width: 38em; }
  body.product-detail .detail-main .detail-closing { padding-block: 44px; }
  body.product-detail .detail-main .detail-actions { margin-top: 24px; gap: 12px; }
  body.product-detail .detail-main :is(.detail-contact, .detail-back) {
    min-height: 44px;
    padding: 10px 18px;
    gap: 12px;
    font-size: 13px;
    font-weight: 450;
    line-height: 1.5;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  body.product-detail .detail-main :is(.detail-contact, .detail-back)::before,
  body.product-detail .detail-main :is(.detail-contact, .detail-back)::after { font-size: 16px; }
  body.product-detail .detail-main .detail-related { padding-top: 12px; }
  body.product-detail .detail-main .detail-related-grid { margin-top: 16px; }
  body.product-detail .detail-main .detail-related-link { padding-block: 23px; min-height: 88px; align-items: flex-start; }
  body.product-detail .detail-main .detail-related-link > .detail-icon { flex: none; margin-top: 3px; }
  body.product-detail .detail-main .detail-related-link::after { font-size: 18px; line-height: 1.6; }
  body.product-detail .detail-main .detail-related-copy > strong { display: block; line-height: 1.5; }
  body.product-detail .detail-main .detail-related-copy > span { display: block; margin-top: 7px; }
  body.product-detail[data-product='content'] .detail-main .content-section-heading { margin-bottom: 27px; }
  body.product-detail[data-product='content'] .detail-main .content-foundation-grid { gap: 0; }
  body.product-detail[data-product='content'] .detail-main .content-foundation { padding-block: 25px 29px; }
  body.product-detail[data-product='content'] .detail-main .content-foundation > h3 { margin-top: 14px; }
  body.product-detail[data-product='content'] .detail-main .content-foundation > p { margin-top: 14px; }
  body.product-detail[data-product='content'] .detail-main .content-foundation > small { display: block; margin-top: 13px; }
  body.product-detail[data-product='content'] .detail-main .content-method-steps { gap: 28px; }
  body.product-detail[data-product='content'] .detail-main .content-method-step { padding-block: 24px; }
  body.product-detail[data-product='content'] .detail-main .content-method-step > p { margin-top: 13px; }
  body.product-detail[data-product='content'] .detail-main .content-studio-points { gap: 24px; padding-left: 0; }
  body.product-detail[data-product='content'] .detail-main .content-studio-points > li { padding-top: 21px; }
  body.product-detail[data-product='content'] .detail-main .content-poster-grid { gap: 26px; }
  body.product-detail[data-product='content'] .detail-main .content-work { padding: 0; }
  body.product-detail[data-product='content'] .detail-main .content-work .content-source { min-height: 44px; padding-block: 9px; }
  body.product-detail[data-product='content'] .detail-main .content-render-links { gap: 7px; margin-top: 18px; }
}

/* Reading copy stays fully legible during a fast mobile scroll. The desktop
   entrance animation belongs to the declaration body, not the product hero. */
@media (max-width: 760px) {
  body.product-detail .detail-main .detail-declaration :is(.detail-section-title, .detail-description) {
    opacity: 1;
    transform: none;
    transition: none;
    transition-delay: 0s;
  }
}

/* Revision7: readable prose is smaller than its supporting headings. A centered
   closing group is separate from the left reading axis of the product story. */
@media (max-width: 760px) {
  body.product-detail .detail-main :is(.detail-overview, .detail-journey, .detail-model, .content-foundations, .content-studio, .content-ai-method, .content-vision, .content-cases) p:not(.detail-section-label),
  body.product-detail .detail-main .content-section-heading > p:not(.detail-section-label),
  body.product-detail .detail-overview.detail-declaration .detail-description {
    font-size: 13.5px;
    line-height: 1.85;
    overflow-wrap: break-word;
    word-break: keep-all;
    text-wrap: pretty;
  }
  body.product-detail .detail-main :is(.content-foundation, .content-method-step, .detail-chapter) :is(h3, strong) {
    overflow-wrap: break-word;
    word-break: keep-all;
    text-wrap: balance;
  }
  body.product-detail .detail-main .content-studio-points strong { font-size: 17px; line-height: 1.5; }
  body.product-detail .detail-main .content-studio-points > li > span { font-size: 13px; line-height: 1.85; }
  body.product-detail .detail-main .content-press-intro strong { font-size: 16px; }
  body.product-detail .detail-main .content-method-inputs { flex-wrap: wrap; gap: 8px; }
  body.product-detail .detail-main .content-method-inputs span { font-size: 13px; overflow-wrap: break-word; }
  body.product-detail .detail-main .content-work .content-source { justify-content: center; text-align: center; font-size: 12px; }
  body.product-detail .detail-main .detail-closing { text-align: center; }
  body.product-detail .detail-main .detail-closing h2 { text-align: center; text-wrap: balance; }
  body.product-detail .detail-main .detail-actions { align-items: center; justify-content: center; gap: 12px; }
  body.product-detail .detail-main :is(.detail-contact, .detail-back) { justify-content: center; font-size: 13px; white-space: normal; }
  body.product-detail .detail-main .detail-related-copy > span { font-size: 13px; line-height: 1.75; overflow-wrap: break-word; }
}

/* Light body copy and authored UI labels share the existing Paper palette.
   Revision9 places only low-contrast reading groups on the existing Business glass. */
@media (max-width: 760px) {
  body.product-detail .detail-main .detail-overview.detail-declaration .detail-description,
  body.product-detail .detail-main .detail-chapter p,
  body.product-detail .detail-main .detail-model > p,
  body.product-detail .detail-main .content-section-heading > p:not(.detail-section-label),
  body.product-detail .detail-main .content-foundation > :is(p, small),
  body.product-detail .detail-main .content-method-step > p,
  body.product-detail .detail-main .content-work figcaption > p,
  body.product-detail .detail-main :is(.content-studio-points, .content-summary-points) p,
  body.product-detail .detail-main .content-studio-points > li > span,
  body.product-detail .detail-main .content-press-intro > span { color: #d6dbd5; }
  body.product-detail .detail-main :is(.detail-overview, .detail-journey) .detail-section-title,
  body.product-detail .detail-main .detail-chapter h3,
  body.product-detail .detail-main .detail-model h2,
  body.product-detail .detail-main .content-section-heading h2,
  body.product-detail .detail-main .content-foundation > h3,
  body.product-detail .detail-main .content-method-step h3,
  body.product-detail .detail-main :is(.content-studio-points, .content-summary-points) strong,
  body.product-detail .detail-main .content-press-intro strong { color: #f5f2ea; }
  body.product-detail .detail-main > :is(.detail-overview, .detail-journey, .detail-model, .detail-related) .detail-section-label,
  body.product-detail .detail-main .content-section-heading > .detail-section-label { color: #c7b77d; }

  /* Diagram versus photographed drawing: a light caption and a separate dark
     functional canvas, without changing any node geometry or motion. */
  body.product-detail .detail-main .product-motion {
    padding: 20px 14px;
    border: 1px solid rgb(255 255 255 / .06);
    border-radius: 1px;
    background: rgb(18 20 18 / .68);
    box-shadow: none;
  }
  body.product-detail .detail-main .product-motion figcaption h2 { color: #f5f2ea; }
  body.product-detail .detail-main .product-motion figcaption .detail-section-label { color: #c7b77d; }
  body.product-detail .detail-main .product-motion .product-motion-note { color: #d6dbd5; }
  body.product-detail .detail-main :is(.product-motion-board, .content-motion-stage) { background: rgb(4 7 6 / .94); }
  body.product-detail .detail-main .detail-related-grid { gap: 12px; }
  body.product-detail .detail-main .detail-related-link {
    padding: 19px 15px;
    border: 1px solid rgb(255 255 255 / .06);
    border-radius: 1px;
    background: rgb(18 20 18 / .68);
    color: #f5f2ea;
  }
  body.product-detail .detail-main .detail-related-copy > span { color: #d6dbd5; }
  body.product-detail .detail-main .detail-related-copy > strong { color: #f5f2ea; }
}


/* Revision10: paper-film prose uses the shared Business black-glass surface. Section
   wrappers, photographs, press clouds and film separators remain exposed. */
@media (max-width: 760px) {
  body.product-detail .detail-main .detail-overview.detail-declaration .detail-description,
  body.product-detail .detail-main .detail-chapter,
  body.product-detail .detail-main .detail-model > p:last-child,
  body.product-detail .detail-main .content-section-heading > p:not(.detail-section-label),
  body.product-detail .detail-main .content-foundation-merged > :is(p, small),
  body.product-detail .detail-main .content-press-intro,
  body.product-detail .detail-main .content-method-note,
  body.product-detail .detail-main .content-method-step,
  body.product-detail .detail-main .content-studio-points > li,
  body.product-detail .detail-main .content-innovation-goals > div {
    padding: 17px 16px;
    border: 1px solid rgb(255 255 255 / .06);
    border-radius: 2px;
    background: rgb(18 20 18 / .62);
    color: #f5f2ea;
    box-shadow: 0 8px 24px rgb(0 0 0 / .16);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
  body.product-detail .detail-main .detail-overview.detail-declaration .detail-description { max-width: 100%; }
  body.product-detail .detail-main .detail-chapters { gap: 13px; }
  body.product-detail[data-product='community-messenger'] .detail-main .detail-chapter { padding: 22px 16px; }
  body.product-detail[data-product='daily-apps'] .detail-main .detail-chapter { padding: 22px 16px; }
  body.product-detail[data-product='daily-apps'] .detail-main .detail-chapters { gap: 13px; }
  body.product-detail[data-product='community-messenger'] .detail-main .detail-chapter + .detail-chapter { margin-top: 13px; }
  body.product-detail .detail-main .detail-chapter > .chapter-index { color: #c7b77d; }
  body.product-detail[data-product='content'] .detail-main .content-method-step { padding: 22px 16px; }
  body.product-detail[data-product='content'] .detail-main .content-studio-points > li { padding: 20px 16px; }
  body.product-detail .detail-main .product-motion,
  body.product-detail .detail-main .detail-related-link {
    border-radius: 2px;
    box-shadow: 0 8px 24px rgb(0 0 0 / .16);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }
  body.product-detail .detail-main .detail-chapter p,
  body.product-detail .detail-main .content-method-step > p,
  body.product-detail .detail-main .content-studio-points > li > span { color: #d6dbd5; }
}

/* Body section titles also cross the filmed paper. Keep their existing type
   and gold marks, placing only the fitted heading on the shared label glass. */
@media (max-width: 760px) {
  body.product-detail .detail-main .detail-overview.detail-declaration > div > h2,
  body.product-detail .detail-main .detail-journey > header > h2,
  body.product-detail .detail-main .detail-model > h2,
  body.product-detail .detail-main .detail-closing > h2,
  body.product-detail .detail-main .content-section-heading > h2 {
    box-sizing: border-box;
    width: fit-content;
    max-width: 100%;
    padding: 8px 12px;
    border: 1px solid rgb(255 255 255 / .06);
    border-radius: 2px;
    background: rgb(18 20 18 / .68);
    box-shadow: 0 8px 24px rgb(0 0 0 / .16);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }
  body.product-detail .detail-main .detail-overview.detail-declaration > div > h2,
  body.product-detail .detail-main .detail-closing > h2 { margin-inline: auto; }
}

/* Revision11: room for the document controls, and breathing space around each
   motion board. Only the backdrop feathers; labels and connectors stay sharp. */
@media (max-width: 760px) {
  body.product-detail .detail-main { margin-top: 156px; }
  body.product-detail .detail-floating-back { top: 96px; left: 20px; }
  body.product-detail .detail-floating-top {
    right: 20px;
    bottom: calc(84px + env(safe-area-inset-bottom));
    width: 48px;
    height: 48px;
  }
  body.product-detail .detail-main :is(.product-motion-board, .content-motion-stage) {
    position: relative;
    isolation: isolate;
    background: transparent;
    margin-top: 52px;
    margin-bottom: 36px;
    overflow: visible;
  }
  body.product-detail .detail-main :is(.product-motion-board, .content-motion-stage)::before {
    content: '';
    position: absolute;
    inset: -24px -10px;
    z-index: -1;
    pointer-events: none;
    background: linear-gradient(180deg, transparent, rgb(4 7 6 / .94) 24px, rgb(4 7 6 / .94) calc(100% - 24px), transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 10px, #000 calc(100% - 10px), transparent);
    mask-image: linear-gradient(90deg, transparent, #000 10px, #000 calc(100% - 10px), transparent);
  }
}

/* Revision11: the complete hero reading group needs contrast on the bright
   source paper. The outward plane leaves every line and layout box untouched. */
@media (max-width: 760px) {
  body.product-detail .detail-main .detail-hero-copy {
    position: relative;
    isolation: isolate;
  }
  body.product-detail .detail-main .detail-hero-copy::before {
    content: '';
    position: absolute;
    inset: -18px -14px;
    z-index: -1;
    pointer-events: none;
    border: 1px solid rgb(255 255 255 / .06);
    border-radius: 2px;
    background: rgb(18 20 18 / .62);
    box-shadow: 0 8px 24px rgb(0 0 0 / .16);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }
}

/* Revision12: keep phrases and punctuation together in mobile reading copy.
   Existing authored hero lines and all type sizes stay unchanged. */
@media (max-width: 760px) {
  html[lang="ko"] body.product-detail .detail-main :is(.detail-summary, .detail-description, .detail-chapter p, .detail-model > p, .content-foundation-merged > p, .content-method-note, .content-method-step > p, .content-work-caption, .detail-related-copy > span) {
    word-break: keep-all;
    line-break: strict;
    overflow-wrap: break-word;
    text-wrap: pretty;
  }
  html[lang="en"] body.product-detail .detail-main :is(.detail-summary, .detail-description, .detail-chapter p, .detail-model > p, .content-foundation-merged > p, .content-method-note, .content-method-step > p, .content-work-caption, .detail-related-copy > span) {
    word-break: normal;
    hyphens: manual;
    overflow-wrap: break-word;
    text-wrap: pretty;
  }
  body.product-detail .detail-main :is(.detail-section-title, .detail-chapter h3, .content-section-heading h2) { text-wrap: balance; }
  body.product-detail .detail-main .content-work figcaption > .content-work-caption {
    margin-top: 0;
    margin-bottom: 4px;
    text-align: center;
    line-height: 1.75;
  }
}

/* Revision12: contrast belongs only to the two AI poster captions. */
@media (max-width: 760px) {
  body.product-detail .content-ai-convergence .content-poster-grid > .content-work > figcaption {
    box-sizing: border-box;
    width: fit-content;
    max-width: 100%;
    margin: 18px auto 0;
    padding: 12px;
    border-radius: 2px;
    background: rgb(18 20 18 / .68);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    text-align: center;
  }
}