.go-top-btn {
    position: fixed;
    bottom: 35px;
    right: 35px;
    border-radius: 50%;
    cursor: pointer;
    height: 60px;
    width: 60px;
    background: transparent;
    border: 2px solid #333;
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.go-top-btn img {
    width: 30px;
    height: 30px;
}


.bgc {
    padding: 5px 10px;
}

.topprog {
    position: fixed;
    inset: 0 0 auto;
    height: 0.1rem;
    background-color: #a9a9a9;
    transform-origin: left;
    z-index: 999;
}