/* 懒加载图片样式 */
:root {
    /* Local Error Tokens (Scoped to be moved to global later if needed) */
    --lazy-error-bg: rgba(255, 59, 48, 0.1);
    --lazy-error-border: rgba(255, 59, 48, 0.3);
}

/* 图片加载前的占位样式 */
img[data-src]:not(.loaded),
img[loading="lazy"]:not(.loaded) {
    background: linear-gradient(135deg, var(--pj-bg-light) 0%, rgba(255, 255, 255, 0.02) 100%);
    min-height: 200px;
}

/* 图片加载动画 */
img.loaded {
    animation: fadeIn 0.6s ease-in-out;
}

/* 背景图加载前 */
.lazy-bg:not(.loaded),
[data-background]:not(.loaded) {
    background-color: var(--pj-bg-light);
}

/* 背景图加载动画 */
.lazy-bg.loaded,
[data-background].loaded {
    animation: bgFadeIn 0.8s ease-in-out;
}

/* 图片加载失败样式 */
img.error {
    background: var(--lazy-error-bg);
    border: 1px solid var(--lazy-error-border);
}

img.error::after {
    content: '图片加载失败';
    display: block;
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* 淡入动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 背景淡入动画 */
@keyframes bgFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* 加载中的占位动画（可选） */
img[data-src]:not(.loaded)::before,
.lazy-bg:not(.loaded)::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid var(--pj-border-normal);
    border-top-color: var(--accent-color, #00ffff);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 1;
    /* Safety Fix: Ensure spinner is above background */
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}