/* Product Design case study — shared page-specific extensions */
.case-hero{position:relative;overflow:hidden;background:var(--color-primary-dark);color:#fff}.case-hero::before{position:absolute;right:-180px;bottom:-260px;width:500px;height:500px;border:72px solid rgba(123,196,226,.07);border-radius:50%;content:""}.case-hero .hero__inner{position:relative;display:grid;gap:42px;padding-top:64px;padding-bottom:72px}.case-hero h1{max-width:760px;margin:0 0 22px;font-size:clamp(2.15rem,8vw,4rem);line-height:1.28;letter-spacing:-.04em}.case-hero .hero__project{margin:0 0 8px;color:var(--color-accent-light);font-family:var(--font-latin);font-size:.82rem;font-weight:800;letter-spacing:.14em}.case-hero .hero__client{display:flex;flex-wrap:wrap;gap:6px 12px;margin:0 0 20px;color:rgba(255,255,255,.72);font-size:.86rem}.case-hero .hero__client span{color:var(--color-accent-light);font-family:var(--font-latin);font-size:.68rem;font-weight:800;letter-spacing:.12em}.case-hero .hero__lead{max-width:660px;margin-bottom:26px;color:rgba(255,255,255,.8)}.case-hero .hero__tags{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}.case-hero .hero__tags li{padding:7px 12px;border:1px solid rgba(123,196,226,.42);border-radius:999px;background:rgba(255,255,255,.05);font-size:.76rem;font-weight:600}.case-hero__visual{display:block;margin:0;overflow:hidden;border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-card);background:#fff;box-shadow:0 22px 50px rgba(0,0,0,.22)}.case-hero__visual img{display:block;width:100%;height:auto;max-height:520px;object-fit:contain}.case-hero__visual figcaption,.media-frame figcaption{padding:11px 15px;border-top:1px solid var(--color-border);color:var(--color-muted);font-size:.76rem}.split-heading,.case-media{display:grid;gap:36px}.section-heading{margin-bottom:34px}.project-facts{margin:0;border-top:1px solid var(--color-border)}.project-facts div{padding:17px 0;border-bottom:1px solid var(--color-border)}.project-facts dt{margin-bottom:5px;color:var(--color-accent);font-family:var(--font-latin);font-size:.72rem;font-weight:800;letter-spacing:.08em}.project-facts dd{margin:0;color:var(--color-primary);font-size:.95rem;font-weight:600}.media-frame{min-width:0;margin:0;overflow:hidden;border:1px solid var(--color-border);border-radius:var(--radius-card);background:#fff;box-shadow:var(--shadow-card)}.media-frame img{display:block;width:100%;height:auto;max-height:620px;object-fit:contain;background:#fff}.case-note{margin-top:18px;color:var(--color-muted);font-size:.76rem}.application-cta{padding:64px 0;background:var(--color-primary);color:#fff}.application-cta__inner{display:grid;gap:28px}.application-cta h2{margin:0 0 16px;font-size:clamp(1.55rem,5vw,2.4rem);line-height:1.45}.application-cta p:not(.eyebrow){max-width:720px;color:rgba(255,255,255,.78)}.application-cta__actions{display:flex;flex-direction:column;gap:12px}@media(min-width:768px){.case-hero .hero__inner{padding-top:88px;padding-bottom:94px}.split-heading{grid-template-columns:minmax(250px,.78fr) minmax(0,1.22fr);gap:64px}.case-media{grid-template-columns:minmax(250px,.82fr) minmax(0,1.18fr);gap:56px;align-items:center}.application-cta__actions{flex-direction:row;flex-wrap:wrap}}@media(min-width:1024px){.case-hero .hero__inner{grid-template-columns:minmax(0,.92fr) minmax(420px,1.08fr);gap:64px;align-items:center;padding-top:104px;padding-bottom:108px}.case-hero__visual{max-width:570px;justify-self:end}.application-cta__inner{grid-template-columns:minmax(0,1fr) auto;align-items:center}.application-cta__actions{max-width:420px;flex-direction:column}}@media(max-width:479px){.case-hero h1 br,.application-cta h2 br{display:none}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}

/* v2 finishing: protect designed Japanese headline breaks and refine case media rhythm. */
.case-hero h1{font-size:clamp(2.15rem,6vw,3.75rem)}.case-hero h1,.section-title,.application-cta h2{overflow-wrap:normal;word-break:keep-all;text-wrap:balance}.headline-phrase{display:inline-block;white-space:nowrap}.mobile-break{display:none}.prose{max-width:720px}.case-media{align-items:center}.media-frame figcaption,.study-comparison figcaption{padding:12px 16px}.study-comparison{display:grid;gap:14px;padding:14px;background:#fff}.study-comparison figure{min-width:0;margin:0;overflow:hidden;border:1px solid var(--color-border);border-radius:calc(var(--radius-card) - 4px);background:#fff}.study-comparison img{display:block;width:100%;height:auto;object-fit:contain;background:#fff}.media-frame>img{aspect-ratio:16/10;object-fit:contain}.case-hero__visual img{aspect-ratio:16/10;object-fit:contain}.study-comparison figcaption{border-top:1px solid var(--color-border);color:var(--color-muted);font-size:.74rem;line-height:1.45}.study-comparison--featured{grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);align-items:stretch}.study-comparison--featured .study-comparison__main{grid-row:span 2}.study-comparison--featured figure{min-height:190px}.study-comparison--featured .study-comparison__main{min-height:410px}.study-comparison--quad{grid-template-columns:repeat(2,minmax(0,1fr))}.study-comparison--quad figure{min-height:220px}@media(max-width:767px){.case-hero h1 br,.section-title br,.application-cta h2 br{display:block}.case-hero h1{font-size:clamp(1.92rem,8.95vw,2.45rem);line-height:1.34}.mobile-break{display:block}.prose{max-width:none}.study-comparison{gap:10px;padding:10px}.study-comparison--featured,.study-comparison--quad{grid-template-columns:1fr}.study-comparison--featured .study-comparison__main{grid-row:auto;min-height:0}.study-comparison--featured figure,.study-comparison--quad figure{min-height:0}.study-comparison img{height:auto}.media-frame>img,.case-hero__visual img{aspect-ratio:auto}.study-comparison figcaption{padding:10px 12px}}@media(max-width:389px){.case-hero h1{font-size:1.92rem}.section-title{font-size:1.54rem}}

/* Guide Level: mechanism, instruction editorial and product identity */
.manual-spread{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:42px}.manual-spread figure{min-width:0;margin:0;overflow:hidden;border:1px solid var(--color-border);border-radius:var(--radius-card);background:#fff;box-shadow:var(--shadow-card)}.manual-spread img{display:block;width:100%;height:auto;background:#fff}.manual-spread figcaption{padding:12px 16px;border-top:1px solid var(--color-border);color:var(--color-muted);font-size:.74rem;line-height:1.5}.manual-detail img{aspect-ratio:auto!important;max-height:760px;object-fit:contain}.logo-frame{display:flex;min-height:300px;flex-direction:column;justify-content:center}.logo-frame img{width:min(82%,520px);height:auto!important;aspect-ratio:auto!important;margin:auto;padding:72px 36px;object-fit:contain}.logo-frame figcaption{margin-top:auto}@media(max-width:767px){.manual-spread{grid-template-columns:1fr;gap:14px;margin-top:30px}.logo-frame{min-height:220px}.logo-frame img{width:88%;padding:52px 24px}}

/* Guide Level v3: avoid duplicate manual display and keep editorial samples at portfolio scale. */
.mechanism-intro{display:grid;gap:36px}.mechanism-points{display:grid;gap:14px;margin-top:38px}.mechanism-points>div{padding:22px 20px;border:1px solid var(--color-border);border-radius:var(--radius-card);background:#fff}.mechanism-points span{display:block;margin-bottom:12px;color:var(--color-accent);font-family:var(--font-latin);font-size:.72rem;font-weight:800;letter-spacing:.1em}.mechanism-points strong{display:block;margin-bottom:8px;color:var(--color-primary);font-size:1rem}.mechanism-points p{margin:0;color:var(--color-muted);font-size:.88rem;line-height:1.75}.editorial-heading{max-width:760px;margin-bottom:34px}.editorial-heading .section-title{font-size:clamp(1.85rem,4.2vw,3rem);line-height:1.45;overflow-wrap:normal;word-break:normal;text-wrap:balance}.editorial-grid{display:grid;gap:34px;align-items:start}.manual-spread--compact{width:min(100%,720px);margin:0}.manual-spread--compact figure{box-shadow:none}.manual-spread--compact figcaption{padding:9px 12px;font-size:.68rem}.manual-spread--compact img{width:100%;height:auto}.editorial-section .prose{max-width:680px}@media(min-width:768px){.mechanism-intro{grid-template-columns:minmax(250px,.82fr) minmax(0,1.18fr);gap:56px}.mechanism-points{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.editorial-grid{grid-template-columns:minmax(260px,.72fr) minmax(0,1.28fr);gap:56px}.manual-spread--compact{margin-left:auto}.editorial-heading{margin-bottom:42px}}@media(max-width:767px){.mechanism-points{margin-top:30px}.editorial-heading .section-title{font-size:clamp(1.65rem,7vw,2.15rem)}.editorial-heading .section-title br{display:block}.manual-spread--compact{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.manual-spread--compact figcaption{display:none}}

/* Guide Level v4 final review: align Product Identity to the standard case grid. */
@media(min-width:768px){
  section[aria-labelledby="identity-title"] .case-media{grid-template-columns:minmax(250px,.82fr) minmax(0,1.18fr);gap:56px;align-items:center}
  section[aria-labelledby="identity-title"] .logo-frame{width:100%;justify-self:stretch}
}

/* Guide Level image QA v4 — source-aware crop/contain rules */
.case-hero__visual img{aspect-ratio:16/10;object-fit:cover}
section[aria-labelledby="sec-0"] .media-frame>img,
section[aria-labelledby="sec-1"] .media-frame>img{aspect-ratio:16/10;object-fit:contain;background:#fff}
.editorial-section .manual-spread img{aspect-ratio:auto;object-fit:contain}
section[aria-labelledby="identity-title"] .logo-frame img{aspect-ratio:auto;object-fit:contain}
@media(max-width:767px){
 .case-hero__visual img{aspect-ratio:16/10;object-fit:cover}
 section[aria-labelledby="sec-0"] .media-frame>img,
 section[aria-labelledby="sec-1"] .media-frame>img{aspect-ratio:auto}
}

/* Guide Level image QA v5 */
.case-media>*{min-width:0}
.case-text-wide{max-width:960px}
.case-text-wide .prose{max-width:760px}
.section-title{max-width:100%;overflow-wrap:normal}
section[aria-labelledby="sec-1"] .media-frame>img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  object-position:center;
}
@media(min-width:768px){
  section[aria-labelledby="sec-1"] .case-media{
    grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);
  }
  section[aria-labelledby="sec-1"] .case-media>div{min-width:0}
}

/* Guide Level v7 — restore original side-view 3D block */
section[aria-labelledby="sec-0"] .media-frame>img{
  width:100%;
  height:auto;
  aspect-ratio:auto;
  object-fit:contain;
  background:#fff;
}


/* Guide Level v8 — PROJECT INFORMATION layout correction */
.guide-project-info .case-media{
  align-items:center;
  grid-template-columns:minmax(0,0.78fr) minmax(0,1.22fr);
  gap:clamp(44px,5vw,88px);
}
.guide-project-info .case-media > div{
  min-width:0;
  max-width:100%;
}
.guide-project-info .section-title{
  max-width:620px;
  line-height:1.18;
  overflow-wrap:anywhere;
  word-break:normal;
}
.guide-project-info .prose{
  max-width:640px;
}
.guide-project-info__media{
  min-width:0;
  overflow:hidden;
}
.guide-project-info__media > img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:auto !important;
  object-fit:contain !important;
  box-sizing:border-box;
  padding:clamp(28px,3.2vw,56px);
  background:#fff;
}
@media (max-width: 1023px){
  .guide-project-info .case-media{
    grid-template-columns:minmax(0,0.9fr) minmax(0,1.1fr);
    gap:32px;
  }
  .guide-project-info .section-title{
    max-width:100%;
    font-size:clamp(36px,4.7vw,58px);
  }
}
@media (max-width: 767px){
  .guide-project-info .case-media{
    grid-template-columns:1fr;
    gap:24px;
  }
  .guide-project-info .section-title{
    font-size:clamp(32px,9vw,44px);
  }
  .guide-project-info__media > img{
    padding:22px;
  }
}

/* Guide Level v9 — use user-confirmed clean source image as-is */
.guide-project-info__media > img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:auto !important;
  object-fit:contain !important;
  padding:clamp(30px,3.5vw,60px);
  background:#fff;
}
/* Let only the long CTA headline phrase wrap between its meaning units on narrow screens. */
@media (max-width: 374px) {
  .application-cta h2 .headline-phrase.cta-mobile-wrap {
    display: inline;
    white-space: normal;
    word-break: normal;
  }
  .application-cta h2 .headline-phrase.cta-mobile-wrap .cta-keep-part {
    display: inline-block;
    white-space: nowrap;
    word-break: keep-all;
  }
}

/* Mobile: adjacent white information sections share one 76px boundary. */
@media (max-width: 767px) {
  section[aria-labelledby="sec-0"] { padding-top: 0; }
  .editorial-heading { margin-bottom: 0; }
}