.timeline-wrapper {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 80px;
    display: flex;
    justify-content: center;
    pointer-events: none;
    padding: 50px 0;
}

.timeline {
    position: relative;
    width: 40px;
    height: 100%;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(
        to bottom,
        rgba(255,255,255,0.8),
        rgba(255,255,255,0.4)
    );
    transform: translateX(-50%);
}

.timeline-mark {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 9px;
    height: 9px;
    background: #ffffff;
    border-radius: 50%;
}

.timeline-label {
    position: absolute;
    left: 16px;
    top: -3px;
    font-size: 11px;
    color: #9a9a9a;
    white-space: nowrap;
}