.lb{position:fixed;inset:0;z-index:3000;display:none;align-items:center;justify-content:center}.lb.active{display:flex}.lb-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.88);backdrop-filter:blur(6px)}.lb-stage{position:relative;z-index:1;width:100%;height:100%;display:flex;align-items:center;justify-content:center;overflow:hidden;cursor:grab;touch-action:none}.lb-stage.dragging{cursor:grabbing}.lb-stage-inner{transition:transform .15s ease-out;transform-origin:center center;max-width:90vw;max-height:86vh;user-select:none}.lb-stage-inner.no-transition{transition:none}.lb-stage-inner img,.lb-stage-inner video{max-width:90vw;max-height:86vh;border-radius:var(--radius-md);box-shadow:0 25px 60px rgba(0,0,0,.5);display:block}.lb-card{background:linear-gradient(135deg,var(--primary) 0,var(--primary-dark) 100%);color:#fff;width:min(560px,90vw);padding:48px 40px;border-radius:var(--radius-md);box-shadow:0 25px 60px rgba(0,0,0,.5)}.lb-card-num{font-size:56px;font-weight:900;color:rgba(255,255,255,.22);line-height:1;margin-bottom:18px}.lb-card-title{font-size:26px;font-weight:800;margin:0 0 12px;letter-spacing:1px}.lb-card-desc{font-size:15px;line-height:1.75;color:rgba(255,255,255,.88);margin:0}.lb-toolbar{position:absolute;top:20px;left:50%;transform:translateX(-50%);z-index:2;display:flex;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(8px);padding:6px;border-radius:999px}.lb-toolbar button{width:40px;height:40px;border-radius:50%;border:none;cursor:pointer;background:0 0;color:#fff;font-size:18px;line-height:1;transition:var(--transition)}.lb-toolbar button:hover{background:rgba(255,255,255,.2)}.lb-close{position:absolute;top:18px;right:22px;z-index:2;width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.25);background:rgba(0,0,0,.4);color:#fff;font-size:24px;cursor:pointer;transition:var(--transition)}.lb-close:hover{background:rgba(255,255,255,.2);transform:rotate(90deg)}.lb-caption{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);z-index:2;color:rgba(255,255,255,.78);font-size:13px;letter-spacing:1px;padding:6px 16px;background:rgba(0,0,0,.35);border-radius:999px;max-width:90vw;text-align:center}.academy-card,.cert-card-top,.cert-slide,.footer-qr-img,.teacher-card,.trust-video{cursor:zoom-in}@media (max-width:600px){.lb-toolbar button{width:36px;height:36px;font-size:16px}.lb-card{padding:36px 24px}.lb-card-title{font-size:22px}}