input[type="file"]{margin:10px 0}#preview{display:none;width:100%;max-height:200px;object-fit:contain;margin-top:10px;border-radius:6px;border:1px solid #ddd}input[type="range"]{width:100%}#sizeInfo{font-size:14px;color:#555;margin-top:10px}.mb-to-kb-title{position:relative;padding:18px 25px;color:#333;font-size:18px;font-weight:500;vertical-align:middle;line-height:30px}.mbkb-container{padding:0 25px 30px}.bg-default p,p.bg{font-size:13px;color:#333;text-align:center}#quality{-webkit-appearance:none;appearance:none;width:100%;height:6px;background:#e0e0e0;border-radius:3px;outline:none;margin:15px 0;transition:background 0.2s}#quality:hover{background:#d5d5d5}#quality::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:#333;cursor:pointer;transition:transform 0.1s ease,background-color 0.2s}#quality::-webkit-slider-thumb:hover{background:#555;transform:scale(1.1)}#quality::-moz-range-thumb{width:18px;height:18px;border:none;border-radius:50%;background:#333;cursor:pointer;transition:transform 0.1s ease,background-color 0.2s}#quality::-moz-range-thumb:hover{background:#555;transform:scale(1.1)}