body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

header h1 {
    font-size: 2.5rem;
}

header p.lead {
    font-size: 1.25rem;
}

.card-title {
    font-weight: bold;
}

footer {
    font-size: 0.9rem;
}

.circle {
    border-radius: 50%;
    width: 200px; /* 確保圖片大小一致 */
    height: 200px; /* 設定與寬度相同，確保圖片為圓形 */
    object-fit: cover; /* 避免變形，確保內容填滿 */
}

#profileTabs .nav-link {
    font-weight: 500; /* Adjust the weight to make the text thinner */
}