.woocommerce ul.products li.product,
.woocommerce-page ul.products li.product {
    position: relative;
}

.woocommerce ul.products li.product .wc-oos-watermark,
.woocommerce-page ul.products li.product .wc-oos-watermark {
    position: absolute;
    z-index: 20;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: block;
    box-sizing: border-box;
    padding: 14px 10px;
    background: rgba(255, 255, 255, 0.82);
    color: #333;
    font-size: 24px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    letter-spacing: .2px;
    pointer-events: none;
}

/* Làm ảnh hơi mờ để watermark dễ đọc, giống kiểu banner trên ảnh mẫu. */
.woocommerce ul.products li.product:has(.wc-oos-watermark) img,
.woocommerce-page ul.products li.product:has(.wc-oos-watermark) img {
    opacity: .82;
}

/* Fallback cho trình duyệt chưa hỗ trợ :has(): class được thêm bằng JS ở dưới. */
.wc-oos-has-watermark img {
    opacity: .82;
}

.wc-oos-has-watermark .wc-oos-watermark {
    position: absolute;
    z-index: 20;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: block;
    padding: 14px 10px;
    background: rgba(255, 255, 255, 0.82);
    color: #333;
    font-size: 24px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    pointer-events: none;
}

.wc-oos-single-watermark-wrap {
    position: absolute;
    z-index: 20;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    pointer-events: none;
}

.wc-oos-single-watermark-wrap .wc-oos-watermark {
    display: block;
    padding: 14px 10px;
    background: rgba(255, 255, 255, 0.82);
    color: #333;
    font-size: clamp(20px, 3vw, 32px);
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
}

.woocommerce div.product div.images,
.woocommerce-page div.product div.images {
    position: relative;
}