.section2 .sec-tabs .sec-tab {
    font-size: 0.21rem;
    margin-right: 1.15rem;
    position: relative;
    cursor: pointer;
    transition: all 0.5s;
    opacity: 0.7;
}

.section5 ul li {
    margin-left: 0.2rem;

}
.section2 .tabs .tab:nth-of-type(1)::after {
    content: "";
    width: 1px;
    height: 100%;
    top: 50%;
    background-color: rgba(88, 88, 88, 0.4);
    position: absolute;
    right: -0.35rem;
    transform: translateY(-50%);
}