body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.top-header {
    background: #145da0;
    width: 100%;
    height: 130px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: visible;
}

.top-header img {
    height: 155px;
    width: auto;
    object-fit: contain;
    pointer-events: none;
}

.card-box {
    width: 780px;
    background: #ffffff;
    border-radius: 18px;
    margin-top: 80px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    position: relative;
    overflow: visible;
}

.card-header {
    background: #f5f7f8;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.dot.red {
    background: #ff5f56;
}

.dot.yellow {
    background: #ffbd2e;
}

.dot.green {
    background: #27c93f;
}

.content {
    text-align: center;
    padding: 35px 40px 60px;
}

.content h2 {
    font-size: 28px;
    color: #1d1d1d;
    font-weight: 700;
    margin-bottom: 8px;
}

.content p {
    font-size: 17px;
    color: #666;
    margin-bottom: 30px;
}

.maintenance-img {
    max-width: 65%;
    height: auto;
}

@media (max-width: 840px) {
    .card-box {
        width: calc(100% - 40px);
    }

    .maintenance-img {
        max-width: 90%;
    }
}