body {
    background-color: rgb(255, 255, 255); /* 或 #f0f0f0, #e0e0e0 等 */
}
#ad-sidebar {
    position: fixed;
    top: 150px;   /* 避免蓋住導航欄 */
    right: 5px;   /* 靠近右邊 */
    width: 150px; /* 縮小寬度 */
    z-index: 1000; /* 確保不被其他內容擋住 */
}

.ad-card {
    background: white;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    font-size: 12px;
}


.ad-card img {
    width: 100%;
    height: 80px;
    border-radius: 5px;
}

.ad-card p {
    margin: 5px 0;
    font-weight: bold;
}

.ad-card a {
    display: inline-block;
    width: 100%;
    font-size: 12px;
    padding: 5px 0;
}
.close-ad {
    position: absolute;
    top: 5px;
    right: 10px;
    background: transparent;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #999;
}

.close-ad:hover {
    color: #333;
}