.trackcourse-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}
.trackcourse-modal-content {
    width: 1024px;
    max-height: 80vh;
    overflow: hidden;
    background: #fff;
    padding: 0;
    border-radius: 20px;
    position: relative;
    box-sizing: border-box;
    max-width: 80%;
}
.trackcourse-modal-close {
    cursor: pointer;
}