/**
 * 淘宝式渐进式图片加载
 * 先显示模糊占位，图片加载完成后渐变清晰
 */

/* 所有需要渐进加载的图片容器 */
.progressive-img-container {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

/* 加载中的shimmer动画 */
.progressive-img-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.05),
        transparent
    );
    animation: shimmer 1.5s infinite;
    z-index: 1;
}

.progressive-img-container.loaded::before {
    display: none;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 低质量模糊占位图 */
.progressive-img-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: blur(20px);
    transform: scale(1.1);
    transition: opacity 0.5s ease;
    z-index: 2;
}

.progressive-img-container.loaded .progressive-img-placeholder {
    opacity: 0;
    pointer-events: none;
}

/* 高清大图 */
.progressive-img-full {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 3;
    position: relative;
}

.progressive-img-container.loaded .progressive-img-full {
    opacity: 1;
}

/* ===== 首页特定样式 ===== */

/* 首页Hero区域背景 */
.home .elementor-section[data-settings*="background_image"] {
    position: relative;
}

/* 产品滑块图片 - 渐进加载 */
.slider-img-box {
    position: relative;
    overflow: hidden;
    background: #0a0a0a;
}

.slider-img-box img {
    transition: opacity 0.4s ease, filter 0.4s ease;
}

.slider-img-box img:not(.loaded) {
    filter: blur(10px);
    opacity: 0.7;
}

.slider-img-box img.loaded {
    filter: blur(0);
    opacity: 1;
}

/* ===== 产品详情页描述区域 ===== */
.woocommerce-Tabs-panel--description img {
    transition: opacity 0.5s ease, filter 0.5s ease;
}

.woocommerce-Tabs-panel--description img:not(.loaded) {
    filter: blur(15px);
    opacity: 0.5;
}

.woocommerce-Tabs-panel--description img.loaded {
    filter: blur(0);
    opacity: 1;
}

/* 强制禁用产品主图的所有效果 */
.woocommerce-product-gallery *,
.woocommerce-product-gallery__wrapper *,
.woocommerce-product-gallery__image *,
.flex-viewport *,
.zoomImg,
.zoomWindow,
img.zoomImg {
    transition: none !important;
    animation: none !important;
    filter: none !important;
}