body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: #2c3e50;
    color: #fff;
    padding: 20px 0;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header h1 {
    margin: 0;
    font-size: 2.5em;
}

header p {
    font-size: 1.1em;
    opacity: 0.9;
}

main {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); /* 自動調整欄數 */
    gap: 20px;
}

.wood-cover-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.wood-cover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.wood-cover-card img {
    width: 100%;
    height: 250px; /* 固定圖片高度 */
    object-fit: cover; /* 保持圖片比例並裁剪 */
    display: block;
}

.wood-cover-info {
    padding: 15px;
}

.wood-cover-info h2 {
    margin-top: 0;
    font-size: 1.6em;
    color: #34495e;
}

.wood-cover-info p {
    margin-bottom: 8px;
    font-size: 0.95em;
    color: #555;
}

.wood-cover-info strong {
    color: #2c3e50;
}

.stock-status {
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 5px;
    display: inline-block;
    margin-top: 10px;
    font-size: 0.85em;
}

.stock-status.available {
    background-color: #27ae60;
    color: #fff;
}

.stock-status.custom-order {
    background-color: #f39c12;
    color: #fff;
}

footer {
    text-align: center;
    padding: 20px;
    background-color: #34495e;
    color: #ecf0f1;
    margin-top: 40px;
}

/* RWD - 手機版優化 */
@media (max-width: 768px) {
    main {
        grid-template-columns: 1fr; /* 單欄顯示 */
        padding: 0 15px;
    }

    header h1 {
        font-size: 1.8em;
    }
}