/* Hero 區塊自訂樣式 */
.hero {
    background: url('https://source.unsplash.com/1600x600/?office') no-repeat center center;
    background-size: cover;
    color: black;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-top: 56px; /* Navbar 高度補償 */
}
.hero h1 {
    font-size: 3rem;
    font-weight: bold
}
.hero p {
    font-size: 1.5rem;
}
/* Card hover 效果 */
.card:hover {
    transform: translateY(-5px);
    transition: 0.3s;
}