.case-header{padding:120px 24px 40px;text-align:center}.case-header h1{font-size:clamp(32px, 5vw, 48px);font-weight:700;letter-spacing:-.025em;line-height:1.1;max-width:700px;margin:0 auto 16px}.case-header .meta{font-size:14px;color:var(--muted)}.case-hero-img{max-width:var(--page-max);margin:0 auto 48px;padding:0 24px}.case-hero-img div{aspect-ratio:16/9;background:linear-gradient(135deg,var(--bg-alt),color-mix(in srgb,var(--primary) 8%,var(--surface)));border-radius:16px;border:1px solid var(--border)}.case-body{padding:0 24px 80px}.case-body .section-narrow>h2{font-size:24px;font-weight:700;margin:48px 0 16px;color:var(--fg)}.case-body .section-narrow>p{margin-bottom:20px;font-size:17px;line-height:1.7;color:var(--fg-secondary)}.case-body .section-narrow>ul{margin:16px 0;padding-left:24px}.case-body .section-narrow ul li{font-size:16px;color:var(--fg-secondary);margin-bottom:8px;padding-left:16px;position:relative;list-style:none}.case-body .section-narrow ul li::before{content:'';position:absolute;left:0;top:10px;width:6px;height:2px;background:var(--primary)}.case-stats{display:flex;flex-flow:row wrap;gap:24px;width:min(calc(var(--content-max) + 120px), calc(100% - 48px));margin:0 auto 48px;padding:32px;background:var(--surface);border:1px solid var(--border);border-radius:16px;text-align:center;box-sizing:border-box;justify-content:space-evenly}.case-stats .stat-value{font-size:32px;font-weight:800;color:var(--primary)}.case-stats .stat-label{font-size:13px;color:var(--muted);margin-top:4px}@media (max-width:768px){.case-stats{width:min(var(--content-max), calc(100% - 48px))}}@media (max-width:600px){.case-stats{grid-template-columns:1fr}}.case-carousel-wrap{position:relative;max-width:100%;overflow:hidden;margin:0 0 48px}.case-carousel{--slide-w:clamp(300px, 75vw, 900px);display:flex;gap:24px;padding:0 calc((100vw - var(--slide-w)) / 2);overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none;-webkit-overflow-scrolling:touch;cursor:grab}.case-carousel:active{cursor:grabbing}.case-carousel::-webkit-scrollbar{display:none}.case-carousel-slide{flex:0 0 var(--slide-w);scroll-snap-align:center;border-radius:16px;overflow:hidden;position:relative;aspect-ratio:16 / 9;background:linear-gradient(135deg,var(--bg-alt),color-mix(in srgb,var(--primary) 8%,var(--surface)));border:1px solid var(--border)}.case-carousel-slide img{width:100%;height:100%;object-fit:cover;display:block}.case-carousel-nav{display:flex;justify-content:center;gap:12px;margin-top:20px;padding:0 24px}.case-carousel-btn{width:40px;height:40px;border-radius:50%;background:var(--surface);border:1px solid var(--border);color:var(--fg);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background 0.2s,border-color 0.2s}.case-carousel-btn:hover{background:var(--bg-alt);border-color:var(--primary)}.case-carousel-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.case-carousel-dots{display:flex;justify-content:center;gap:8px;margin-top:16px}.case-carousel-dot{width:8px;height:8px;border-radius:50%;background:var(--border);border:none;cursor:pointer;transition:background 0.2s,transform 0.2s;padding:0}.case-carousel-dot.active{background:var(--primary);transform:scale(1.25)}@media (max-width:600px){.case-carousel{gap:16px}.case-carousel-slide{flex:0 0 85vw}}.article-toc{margin:0 auto 32px;max-width:880px;background:var(--surface);border:1px solid var(--border);border-radius:12px;corner-shape:squircle;padding:16px 20px;font-size:14px}.article-toc summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.article-toc summary::-webkit-details-marker{display:none}.article-toc summary::after{content:'+';font-size:16px;color:var(--muted)}.article-toc[open] summary::after{content:'\2212'}.article-toc ul{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:9px}.article-toc li{margin:0}.article-toc a{color:var(--fg-secondary);text-decoration:none;line-height:1.45}.article-toc a:hover{color:var(--primary)}.article-toc a[aria-current]{color:var(--primary);text-shadow:.3px 0 currentColor,-.3px 0 currentColor}@media (min-width:1100px){.article-shell{display:flex;flex-direction:row;justify-content:center;align-items:flex-start;gap:56px;max-width:var(--page-max);margin:0 auto}.article-shell .section-narrow{margin:0}.article-shell .article-toc{order:-1;flex:0 0 220px;width:220px;margin:0;padding:0 0 0 4px;background:#fff0;border:0;position:sticky;top:calc(var(--nav-h) + 24px);max-height:calc(100vh - var(--nav-h) - 48px);overflow-y:auto}.article-shell .article-toc summary{cursor:default;pointer-events:none;margin-bottom:6px}.article-shell .article-toc summary::after{display:none}}.term-cloud{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:40px 0 24px;padding-top:24px;border-top:1px solid var(--border)}.term-cloud__label{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-right:4px}.term-cloud__pill{padding:4px 12px;font-size:12px;font-weight:500;color:var(--fg-secondary);border:1px solid var(--border);border-radius:100px;text-decoration:none;transition:color 0.15s,border-color 0.15s,background 0.15s}.term-cloud__pill:hover,.term-cloud__pill:focus-visible{color:var(--primary);border-color:var(--primary);background:color-mix(in srgb,var(--primary) 8%,transparent)}