:root{--gap: 12px;--card-size: 86px;--btn-size: 44px;--brand-gap: 12px}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans,Helvetica Neue,Arial;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-shell{display:flex;flex-direction:column;min-height:100vh;padding:16px;box-sizing:border-box}.brand{display:flex;align-items:center;gap:var(--brand-gap);margin-bottom:12px}.brand-logo{width:48px;height:48px;display:flex;align-items:center;justify-content:center;font-size:28px;background:var(--surface, #fff);border-radius:10px;box-shadow:0 1px 2px #0000000f}.brand-text-main{font-weight:700;font-size:1.05rem}.brand-text-sub{font-size:.85rem;color:var(--muted, #666)}.carousel{display:flex;align-items:center;gap:8px;margin:8px 0}.carousel-viewport{overflow:hidden;flex:1}.carousel-track{display:flex;align-items:center;gap:var(--gap);padding:8px 0;justify-content:center}.carousel-card{min-width:var(--card-size);height:var(--card-size);display:flex;align-items:center;justify-content:center;border-radius:10px;background:linear-gradient(180deg,#fff,#f7f9fb);border:1px solid rgba(16,24,40,.06);color:#0b2540;box-shadow:0 6px 18px #0b25400f;font-weight:700;font-size:.95rem;text-align:center;padding:8px;-webkit-user-select:none;user-select:none}.card-front{transform:scale(1.06)}.card-middle,.card-back{opacity:.9;transform:scale(.96)}.carousel-btn{width:var(--btn-size);height:var(--btn-size);border-radius:8px;border:0;background:var(--primary, #0a66ff);color:#fff;font-size:1.2rem;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #00000014}.carousel-btn:active{transform:translateY(1px)}.carousel-selected{margin-top:6px;font-weight:600;text-align:center;color:var(--muted, #444)}.play-container{display:flex;justify-content:center;margin-top:18px}.play-btn{width:100%;max-width:420px;padding:14px 18px;font-size:1.05rem;border-radius:12px;border:0;background:var(--accent, #ff6b6b);color:#fff;font-weight:700;box-shadow:0 6px 18px #00000014}@media (min-width: 720px){.carousel-card{min-width:120px;height:120px;font-size:1.05rem}.brand-logo{width:64px;height:64px;font-size:34px}.play-btn{max-width:560px;padding:16px 22px;font-size:1.1rem}}.carousel-card:focus{outline:3px solid rgba(77,150,255,.18);outline-offset:4px}.carousel-btn,.play-btn{touch-action:manipulation;-webkit-tap-highlight-color:rgba(0,0,0,0)}.coming-soon{margin-top:3rem;padding-top:1rem;border-top:1px solid var(--border-color, #ddd)}.lab-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.2rem;margin-top:1rem}.lab-card{background:var(--surface, #fff);border-radius:8px;padding:1rem;color:#0b2540;box-shadow:0 2px 6px #00000014;transition:transform .15s ease,box-shadow .15s ease}.lab-card:hover{transform:translateY(-3px);box-shadow:0 4px 10px #0000001f}.lab-card-title{margin:0 0 .4rem;font-size:1.1rem;font-weight:600}.lab-card-desc{margin:0;font-size:.9rem;line-height:1.35;opacity:.85}.coming-soon-note{margin-top:1rem;font-size:.85rem;opacity:.7;text-align:center}