body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
    color: #333;
}

header {
    background-color: #2c3e50; /* 海軍藍 */
    color: #fff;
    padding: 1rem;
    text-align: center;
}

nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 1rem;
}

main {
    padding: 2rem;
}

section {
    margin-bottom: 2rem;
}

.profile {
    display: flex;
    align-items: center;
}

.profile img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-right: 1rem;
}

.post {
    border: 1px solid #ddd;
    padding: 1rem;
    margin-bottom: 1rem;
}

footer {
    background-color: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 1rem;
}