.tu-upload-area {
    border: 2px dashed #d0d5e0;
    border-radius: 14px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all .2s;
    background: #fafbfe;
}

.tu-upload-area:hover,
.tu-upload-area.dragover {
    border-color: #4e7cf5;
    background: #eef3ff;
}

.tu-upload-area i {
    font-size: 36px;
    color: #4e7cf5;
    margin-bottom: 12px;
}

.tu-upload-area p {
    font-size: 15px;
    color: #5a6475;
    margin: 5px 0;
    line-height: 1.6;
}

.tu-slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #e8ecf2;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    margin: 8px 0;
}

.tu-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #4e7cf5;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(78, 124, 245, .3);
}

.tu-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #4e7cf5;
    cursor: pointer;
    border: none;
}

.tu-waveform {
    width: 100%;
    height: 120px;
    border: 1px solid #e8ecf2;
    border-radius: 10px;
    background: #fafbfe;
}