.timeline {
    position: relative;
    padding: 40px 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: #000;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    background: #ff0000;
    border-radius: 50%;
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

#timeline-dot-2 {
    width: 20px;
    height: 20px;
    background: #ff0000;
    border-radius: 50%;
    position: absolute;
    right: +10px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
}

.service-section {
    background-color: white;
    padding: 60px 0;
}

.phone-image {
    width: 100%;
    max-width: 400px;
    height: auto;
}

.service-content {
    padding: 20px;
}

@media (max-width: 768px) {
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item:nth-child(odd) {
        text-align: left;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-dot {
        left: 22px;
        right: auto;
    }
    #timeline-dot-2 {
        left: 20px;
        right: auto;
    }
}