.presentation-slide-viewer{position:relative;width:100%;max-width:960px;margin:0 auto var(--space-xl);aspect-ratio:16 / 9;background:var(--bg-secondary);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-2xl);border:1px solid var(--border-secondary)}.presentation-slide-viewer img{width:100%;height:100%;object-fit:contain;display:block}.presentation-slide-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;background:#00000080;border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-full);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;backdrop-filter:blur(8px);z-index:10;opacity:0}.presentation-slide-viewer:hover .presentation-slide-nav{opacity:1}.presentation-slide-nav:hover{background:rgba(var(--gold-primary-rgb),.4);border-color:var(--gold-border-light)}.presentation-slide-nav:disabled{opacity:.2!important;cursor:not-allowed}.presentation-slide-nav svg{width:22px;height:22px}.presentation-slide-nav--prev{left:var(--space-md)}.presentation-slide-nav--next{right:var(--space-md)}.presentation-slide-counter{position:absolute;bottom:var(--space-md);left:50%;transform:translate(-50%);background:#0009;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-full);padding:5px 16px;font-size:13px;font-weight:600;color:#ffffffd9;backdrop-filter:blur(8px);z-index:10;user-select:none}.presentation-slide-counter .current{color:var(--lx-gold-text)}.presentation-slide-footer{position:absolute;bottom:0;left:0;right:0;display:flex;flex-direction:column;align-items:stretch;padding:8px 12px 10px;background:linear-gradient(transparent,#000c);border-radius:0 0 var(--radius-lg) var(--radius-lg);opacity:0;transition:opacity .3s ease;z-index:15;pointer-events:none}.presentation-slide-seekbar{position:relative;width:100%;height:6px;background:#fff3;border-radius:3px;cursor:pointer;margin-bottom:8px;transition:height .15s ease}.presentation-slide-seekbar:hover{height:8px}.presentation-slide-seekbar-fill{position:absolute;top:0;left:0;height:100%;background:var(--gold-primary, #d4a855);border-radius:3px;transition:width .2s ease;pointer-events:none}.presentation-slide-seekbar-hover{position:absolute;top:0;left:0;height:100%;background:#ffffff26;border-radius:3px;pointer-events:none;display:none}.presentation-slide-seekbar:hover .presentation-slide-seekbar-hover{display:block}.presentation-slide-seekbar-preview{position:absolute;bottom:calc(100% + 10px);transform:translate(-50%);width:160px;height:90px;background:#000;border:2px solid rgba(255,255,255,.6);border-radius:4px;overflow:hidden;display:none;pointer-events:none;box-shadow:0 4px 12px #00000080;z-index:20}.presentation-slide-seekbar:hover .presentation-slide-seekbar-preview{display:block}.presentation-slide-seekbar-preview img{width:100%;height:100%;object-fit:contain;display:block;background:#111}.presentation-slide-seekbar-preview-number{position:absolute;bottom:3px;left:50%;transform:translate(-50%);background:#000c;color:#fff;font-size:11px;font-weight:600;padding:1px 8px;border-radius:3px;line-height:1.4;white-space:nowrap}.presentation-slide-footer-controls{display:flex;align-items:center;justify-content:center;width:100%;position:relative;min-height:32px}.presentation-slide-viewer:hover .presentation-slide-footer{opacity:1;pointer-events:auto}.presentation-slide-footer-left,.presentation-slide-footer-right{display:flex;align-items:center;gap:4px}.presentation-slide-footer-left{position:absolute;left:8px}.presentation-slide-footer-right{position:absolute;right:8px}.presentation-slide-footer-nav{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background:transparent;border:none;border-radius:var(--radius-md);color:#fffc;cursor:pointer;transition:all .2s ease;padding:0;flex-shrink:0}.presentation-slide-footer-nav:hover:not(:disabled){color:#fff;background:#ffffff26}.presentation-slide-footer-nav:disabled{opacity:.3;cursor:not-allowed}.presentation-slide-footer-counter{font-size:14px;font-weight:600;color:#ffffffe6;white-space:nowrap;flex-shrink:0;min-width:50px;text-align:center}.presentation-slide-footer-counter .current{color:#fff}.presentation-slider-input{flex:1;min-width:0;height:6px;appearance:none;-webkit-appearance:none;background:var(--border-secondary);border-radius:3px;outline:none;cursor:pointer;transition:background .2s ease}.presentation-slider-input::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--gold-primary);border:2px solid var(--bg-primary);box-shadow:0 1px 4px #0000004d;cursor:pointer;transition:transform .15s ease}.presentation-slider-input::-webkit-slider-thumb:hover{transform:scale(1.2)}.presentation-slider-input::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--gold-primary);border:2px solid var(--bg-primary);box-shadow:0 1px 4px #0000004d;cursor:pointer}.presentation-slider-input::-moz-range-track{height:6px;background:var(--border-secondary);border-radius:3px;border:none}.presentation-fullscreen-btn{position:absolute;bottom:var(--space-md);right:var(--space-md);width:40px;height:40px;background:#00000080;border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-md);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;backdrop-filter:blur(8px);z-index:10;opacity:0;padding:0}.presentation-slide-viewer:hover .presentation-fullscreen-btn{opacity:1}.presentation-fullscreen-btn:hover{background:rgba(var(--gold-primary-rgb),.4);border-color:var(--gold-border-light)}.presentation-fullscreen-btn svg{width:20px;height:20px}.presentation-slide-viewer:fullscreen{position:fixed;width:100vw;height:100dvh;max-width:none;aspect-ratio:auto;border-radius:0;border:none;background:#000;z-index:9999;margin:0}.presentation-slide-viewer:fullscreen .presentation-slide-footer{border-radius:0}.presentation-slide-viewer:-webkit-full-screen{position:fixed;width:100vw;height:100dvh;max-width:none;aspect-ratio:auto;border-radius:0;border:none;background:#000;z-index:9999;margin:0}.presentation-slide-viewer:-webkit-full-screen .presentation-slide-footer{border-radius:0}.presentation-slide-viewer:fullscreen .presentation-slide-nav,.presentation-slide-viewer:fullscreen .presentation-slide-counter,.presentation-slide-viewer:fullscreen .presentation-fullscreen-btn{opacity:0;transition:opacity .3s ease}.presentation-slide-viewer:fullscreen:hover .presentation-slide-nav,.presentation-slide-viewer:fullscreen:hover .presentation-slide-counter,.presentation-slide-viewer:fullscreen:hover .presentation-fullscreen-btn{opacity:1}.presentation-slide-viewer:-webkit-full-screen .presentation-slide-nav,.presentation-slide-viewer:-webkit-full-screen .presentation-slide-counter,.presentation-slide-viewer:-webkit-full-screen .presentation-fullscreen-btn{opacity:0;transition:opacity .3s ease}.presentation-slide-viewer:-webkit-full-screen:hover .presentation-slide-nav,.presentation-slide-viewer:-webkit-full-screen:hover .presentation-slide-counter,.presentation-slide-viewer:-webkit-full-screen:hover .presentation-fullscreen-btn{opacity:1}.presentation-slide-viewer--fullscreen{position:fixed!important;top:0;left:0;width:100vw!important;height:100dvh!important;max-width:none!important;aspect-ratio:auto!important;border-radius:0!important;border:none!important;background:#000!important;z-index:9999!important;margin:0!important}.presentation-slide-viewer--fullscreen .presentation-slide-nav,.presentation-slide-viewer--fullscreen .presentation-slide-counter,.presentation-slide-viewer--fullscreen .presentation-fullscreen-btn{opacity:0;transition:opacity .3s ease}.presentation-slide-viewer--fullscreen:hover .presentation-slide-nav,.presentation-slide-viewer--fullscreen:hover .presentation-slide-counter,.presentation-slide-viewer--fullscreen:hover .presentation-fullscreen-btn{opacity:1}@media (max-width: 768px){.presentation-slide-nav{opacity:.7;width:36px;height:36px}.presentation-fullscreen-btn{opacity:.7;width:34px;height:34px}.presentation-slide-seekbar-preview{width:120px;height:68px}}