.product-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #fff;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #eee;
    z-index: 100;
    height: 50px;
}

.product-content {
    margin-top: 50px;
    padding-bottom: 120px;
}

.product-images {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-indicator {
    position: absolute;
    bottom: 15px;
    right: 15px;
    background: rgba(0,0,0,0.5);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
}

.product-info {
    background: #fff;
    padding: 20px 15px;
    margin-bottom: 10px;
}

.product-price-section {
    margin-bottom: 15px;
}

.current-price {
    color: #ff4757;
    font-size: 24px;
    font-weight: bold;
}

.original-price {
    color: #999;
    text-decoration: line-through;
    margin-left: 10px;
    font-size: 16px;
}

.discount-tag {
    background: #ff4757;
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
    margin-left: 10px;
}

.product-title {
    font-size: 16px;
    line-height: 1.4;
    color: #333;
    margin-bottom: 10px;
}

.delivery-info {
    font-size: 12px;
    color: #666;
    margin-bottom: 5px;
}

.variant-section {
    background: #fff;
    padding: 15px;
    margin-bottom: 10px;
}

.variant-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 15px;
}

.variant-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.variant-option {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.variant-option:hover {
    border-color: #ff4757;
    background: #fff5f5;
}

.variant-option.selected {
    border-color: #ff4757;
    background: #fff5f5;
    color: #ff4757;
}

.reviews-section {
    background: #fff;
    padding: 15px;
    margin-bottom: 10px;
}

.reviews-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.reviews-title {
    font-size: 16px;
    font-weight: bold;
}

.reviews-count {
    color: #666;
    font-size: 14px;
}

.review-item {
    padding: 15px 0;
    border-bottom: 1px solid #f0f0f0;
}

.review-user {
    font-size: 14px;
    color: #333;
    margin-bottom: 5px;
}

.review-content {
    font-size: 14px;
    color: #666;
    line-height: 1.4;
}

.bottom-actions {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    padding: 15px;
    border-top: 1px solid #eee;
    display: flex;
    gap: 10px;
}

.action-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

.add-cart-btn {
    background: #fff;
    color: #ff4757;
    border: 2px solid #ff4757;
}

.buy-now-btn {
    background: #ff4757;
    color: white;
}

.action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
}