/* Zibll 图片预览轮播 - 前端样式 */

.zibll-image-preview {
    width: 100%;
    margin: 16px 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.zibll-image-preview.align-center {
    margin-left: auto;
    margin-right: auto;
}

/* 主预览区 - 完全透明，无任何背景色 */
.zibll-preview-main {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 12px;
    background: transparent;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    cursor: grab;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.zibll-preview-main.zibll-dragging {
    cursor: grabbing;
}

.zibll-preview-main.zibll-dragging img {
    pointer-events: none;
    -webkit-user-drag: none;
}

/* 长宽比例设置 */
.zibll-image-preview.ratio-16-9 .zibll-preview-main {
    aspect-ratio: 16 / 9;
}

.zibll-image-preview.ratio-5-3 .zibll-preview-main {
    aspect-ratio: 5 / 3;
}

.zibll-image-preview.ratio-4-3 .zibll-preview-main {
    aspect-ratio: 4 / 3;
}

.zibll-image-preview.ratio-3-2 .zibll-preview-main {
    aspect-ratio: 3 / 2;
}

.zibll-image-preview.ratio-1-1 .zibll-preview-main {
    aspect-ratio: 1 / 1;
}

.zibll-image-preview.ratio-3-4 .zibll-preview-main {
    aspect-ratio: 3 / 4;
}

.zibll-image-preview.ratio-2-3 .zibll-preview-main {
    aspect-ratio: 2 / 3;
}

.zibll-image-preview.ratio-auto .zibll-preview-main {
    aspect-ratio: auto;
}

.zibll-image-preview.ratio-auto .zibll-preview-slide img {
    position: static;
    width: 100%;
    height: auto;
    object-fit: cover;
}

.zibll-image-preview.ratio-auto .zibll-preview-slide {
    position: static;
    opacity: 1;
    transform: none;
    transition: none;
}

.zibll-image-preview.ratio-auto .zibll-preview-slides {
    position: static;
}

/* 滑动容器 */
.zibll-preview-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

/* =========================================================
   滑动动画 (animation-slide)
   完全使用类控制，不依赖任何 inline style
   ========================================================= */
.zibll-image-preview.animation-slide .zibll-preview-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(30%);
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 0.4s ease;
    transition-property: transform, opacity;
    pointer-events: none;
    z-index: 0;
    will-change: transform, opacity;
}

.zibll-image-preview.animation-slide .zibll-preview-slide.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    z-index: 1;
}

.zibll-image-preview.animation-slide .zibll-preview-slide.enter-next {
    transform: translateX(30%);
    opacity: 0;
}
.zibll-image-preview.animation-slide .zibll-preview-slide.enter-prev {
    transform: translateX(-30%);
    opacity: 0;
}

.zibll-image-preview.animation-slide .zibll-preview-slide.leave-next {
    transform: translateX(-30%);
    opacity: 0;
}
.zibll-image-preview.animation-slide .zibll-preview-slide.leave-prev {
    transform: translateX(30%);
    opacity: 0;
}

/* =========================================================
   淡入淡出动画 (animation-fade)
   ========================================================= */
.zibll-image-preview.animation-fade .zibll-preview-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.45s ease;
    pointer-events: none;
    z-index: 0;
    will-change: opacity;
}

.zibll-image-preview.animation-fade .zibll-preview-slide.active {
    opacity: 1;
    pointer-events: auto;
    z-index: 1;
}

.zibll-image-preview.animation-fade .zibll-preview-slide.enter-next,
.zibll-image-preview.animation-fade .zibll-preview-slide.enter-prev {
    opacity: 0;
}

.zibll-image-preview.animation-fade .zibll-preview-slide.leave-next,
.zibll-image-preview.animation-fade .zibll-preview-slide.leave-prev {
    opacity: 0;
}

/* =========================================================
   缩放动画 (animation-scale)
   ========================================================= */
.zibll-image-preview.animation-scale .zibll-preview-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: scale(1.08);
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 0.4s ease;
    pointer-events: none;
    z-index: 0;
    will-change: transform, opacity;
}

.zibll-image-preview.animation-scale .zibll-preview-slide.active {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
    z-index: 1;
}

.zibll-image-preview.animation-scale .zibll-preview-slide.enter-next,
.zibll-image-preview.animation-scale .zibll-preview-slide.enter-prev {
    transform: scale(1.08);
    opacity: 0;
}

.zibll-image-preview.animation-scale .zibll-preview-slide.leave-next,
.zibll-image-preview.animation-scale .zibll-preview-slide.leave-prev {
    transform: scale(0.96);
    opacity: 0;
}

/* =========================================================
   图片/视频样式 - cover 填满，无留白无背景
   注意：子比主题/其他插件可能会给 <img>/<video> 再包一层 wrapper，
         或强制 object-fit: contain；这里用高优先级兜底填满容器
   （ratio-auto 模式单独处理，不在这里覆盖）
   ========================================================= */
/* 1) 强兜底：slide 内除 arrow/counter/playBtn 以外的任何直接子 wrapper
      （可能是主题播放器包装 / 懒加载包装 / 原生 wp-video 包装 / 短代码包装）
      一律绝对定位填满整个 slide，不让它限制图片高度导致下方白边 */
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide > *:not(.zibll-preview-arrow):not(.zibll-preview-counter):not(.zibll-preview-video-play) {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    max-width: none !important;
    max-height: none !important;
    aspect-ratio: auto !important;
}
/* 2) 对 wrapper 内部继续下钻：任何可能的中间 div（.wp-video / figure / .wp-video-shortcode / .ratio-box 等）
      全部铺满父级 */
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide div:not(.zibll-preview-arrow):not(.zibll-preview-counter):not(.zibll-preview-video-play),
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide figure,
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide span,
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide p,
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide picture {
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    max-width: none !important;
    max-height: none !important;
    aspect-ratio: auto !important;
    line-height: 0 !important;
}

/* 3) 真正的媒体元素：强制 cover 铺满 + 高优先级 */
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide img,
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide video.zibll-preview-video,
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide video {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    user-select: none;
    -webkit-user-drag: none;
    display: block !important;
    max-width: none !important;
    max-height: none !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #000;
    border-radius: 0;
}
/* 去掉可能被主题加的 shadow / border / background 在 <a> 包装里的残留 */
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide a:has(img),
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide a:has(video) {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    text-decoration: none !important;
    border: none !important;
    box-shadow: none !important;
    background: transparent !important;
}

/* 自定义播放按钮（当视频隐藏原生 controls 时显示） */
.zibll-preview-video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    z-index: 6;
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0.9;
}
.zibll-preview-video-play:hover {
    transform: translate(-50%, -50%) scale(1.08);
    opacity: 1;
}
.zibll-preview-slide.active.type-video .zibll-preview-video-play {
    display: block;
}
/* 当原生 controls 显示时，不需要自定义播放按钮；但 PHP 里只在 !showControls 时输出按钮，所以这里做兜底 */
.zibll-preview-slide.type-video video[controls] + .zibll-preview-video-play {
    display: none !important;
}

/* ratio-auto 模式下视频按正常流显示 */
.zibll-image-preview.ratio-auto .zibll-preview-slide.type-video {
    position: static;
    opacity: 1;
    transform: none;
    transition: none;
}
.zibll-image-preview.ratio-auto .zibll-preview-slide video.zibll-preview-video {
    position: static;
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* =========================================================
   嵌入在线内容（iframe）样式
   注意：所有规则都只作用于 .zibll-preview-embed-wrap / .zibll-preview-embed
         避免影响主题或其他插件的 iframe 元素
   ========================================================= */
/* 外层 wrapper：确保填满整个 slide 容器（前面的强兜底规则 >* 已经作用，这里再加固） */
.zibll-preview-slide.type-embed .zibll-preview-embed-wrap {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #000; /* iframe 加载前显示深色背景，避免白块闪烁 */
    overflow: hidden !important;
}
/* iframe 本身：用 cover 模式填满容器（模拟 object-fit: cover 的效果）
   做法：把 iframe 设为 100% 宽高，然后用 transform: scale() 放大到覆盖，overflow hidden 裁切
   关键：使用 CSS 变量 --ratio-w / --ratio-h 让 JS 动态计算缩放比例 */
.zibll-image-preview:not(.ratio-auto) .zibll-preview-slide.type-embed iframe.zibll-preview-embed {
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    width: 100% !important;
    height: 100% !important;
    min-width: 100% !important;
    min-height: 100% !important;
    border: none !important;
    margin: 0 !important;
    padding: 0 !important;
    display: block !important;
    background: #000;
    transform-origin: center center !important;
    /* 默认 scale(1)，JS 会根据实际比例计算覆盖值 */
    transform: translate(-50%, -50%) scale(var(--embed-scale, 1)) !important;
    will-change: transform !important;
}
/* 移动端（≤768px）：强制 iframe 按 cover 模式裁切填充 */
@media (max-width: 768px) {
    .zibll-image-preview:not(.ratio-auto) .zibll-preview-slide.type-embed iframe.zibll-preview-embed {
        /* 移动端更激进：直接用 cover 缩放，确保无黑边 */
        transform: translate(-50%, -50%) scale(var(--embed-scale-mobile, 1.1)) !important;
    }
}
/* 移动端 wrapper：确保裁切溢出 */
@media (max-width: 768px) {
    .zibll-preview-slide.type-embed .zibll-preview-embed-wrap {
        overflow: hidden !important;
    }
}
/* 极窄屏幕（≤480px）：进一步缩放 */
@media (max-width: 480px) {
    .zibll-image-preview:not(.ratio-auto) .zibll-preview-slide.type-embed iframe.zibll-preview-embed {
        transform: translate(-50%, -50%) scale(var(--embed-scale-mobile, 1.15)) !important;
    }
}
/* ratio-auto 模式：嵌入内容按 16:9 显示，避免高度塌陷成 0 */
.zibll-image-preview.ratio-auto .zibll-preview-slide.type-embed {
    position: static;
    opacity: 1;
    transform: none;
    transition: none;
}
.zibll-image-preview.ratio-auto .zibll-preview-slide.type-embed .zibll-preview-embed-wrap {
    position: relative !important;
    width: 100% !important;
    aspect-ratio: 16 / 9; /* 默认 16:9，避免 iframe 高度 0 */
    height: auto !important;
    overflow: hidden !important;
}
.zibll-image-preview.ratio-auto .zibll-preview-slide.type-embed iframe.zibll-preview-embed {
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    width: 100% !important;
    height: 100% !important;
    min-width: 100% !important;
    min-height: 100% !important;
    border: none !important;
    background: #000;
    transform-origin: center center !important;
    transform: translate(-50%, -50%) scale(var(--embed-scale, 1)) !important;
}

/* 缩略图：嵌入内容角标（紫色外框 + 外链图标） */
.zibll-preview-thumb.type-embed .zibll-thumb-embed-badge {
    position: absolute;
    left: 4px;
    bottom: 4px;
    background: rgba(124, 58, 237, 0.92);
    color: #fff;
    border-radius: 10px;
    padding: 2px 6px;
    font-size: 10px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    font-weight: 600;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    pointer-events: none;
    letter-spacing: 0.3px;
}
.zibll-thumb-embed-badge svg {
    display: inline-block;
    vertical-align: middle;
}
.zibll-preview-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: #333;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: background-color 0.25s ease, color 0.25s ease,
                box-shadow 0.25s ease, transform 0.25s ease, opacity 0.25s ease;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
    padding: 0;
    opacity: 0;
    pointer-events: none;
}

.zibll-preview-main:hover .zibll-preview-arrow,
.zibll-image-preview.is-show-arrows:not(.is-mobile) .zibll-preview-arrow {
    opacity: 1;
    pointer-events: auto;
}

/* 移除 :focus-within 规则，防止点击箭头后按钮获得焦点导致箭头一直显示 */
/* 改为由 JS 控制 .is-show-arrows 类来处理键盘聚焦时的显示 */

.zibll-preview-arrow:hover {
    background: #fff;
    color: #e60012;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    transform: translateY(-50%) scale(1.08);
}

.zibll-preview-arrow:active {
    transform: translateY(-50%) scale(0.95);
}

.zibll-preview-arrow:disabled {
    opacity: 0.25 !important;
    cursor: not-allowed;
    pointer-events: none !important;
}

.zibll-preview-arrow:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(230, 0, 18, 0.22), 0 2px 12px rgba(0, 0, 0, 0.18);
}

.zibll-preview-arrow svg {
    width: 24px;
    height: 24px;
    display: block;
}

.zibll-preview-prev {
    left: 16px;
}

.zibll-preview-next {
    right: 16px;
}

/* =========================================================
   计数器
   ========================================================= */
.zibll-preview-counter {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    padding: 3px 10px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    z-index: 5;
    letter-spacing: 0.5px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    user-select: none;
    line-height: 1.6;
}

.zibll-preview-counter .current {
    font-weight: 700;
}

/* =========================================================
   缩略图导航 - 16:9 比例，无多余背景
   ========================================================= */
.zibll-preview-thumbs {
    display: flex;
    gap: 8px;
    padding: 10px 0 0;
    overflow-x: auto;
    scroll-behavior: smooth;
    -ms-overflow-style: none;
    scrollbar-width: none;
    cursor: grab;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.zibll-preview-thumbs.zibll-thumbs-dragging {
    cursor: grabbing;
    scroll-behavior: auto;
}

.zibll-preview-thumbs::-webkit-scrollbar {
    display: none;
}

.zibll-preview-thumb {
    position: relative;
    flex-shrink: 0;
    width: 96px;
    height: 54px;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    background: transparent;
    transition: transform 0.2s ease, border-color 0.2s ease,
                box-shadow 0.2s ease;
    opacity: 0.7;
    user-select: none;
}

.zibll-preview-thumb:hover {
    opacity: 1;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.zibll-preview-thumb.active {
    opacity: 1;
    border-color: #e60012;
    box-shadow: 0 0 0 2px rgba(230, 0, 18, 0.2);
    transform: translateY(-2px);
}

.zibll-preview-thumb:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(230, 0, 18, 0.22);
}

.zibll-preview-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
}

/* 缩略图：视频角标 */
.zibll-preview-thumb.type-video .zibll-thumb-video-badge {
    position: absolute;
    left: 4px;
    bottom: 4px;
    background: rgba(0, 0, 0, 0.65);
    color: #fff;
    border-radius: 10px;
    padding: 2px 6px;
    font-size: 10px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    font-weight: 600;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    pointer-events: none;
    letter-spacing: 0.3px;
}
.zibll-thumb-video-badge svg {
    display: inline-block;
    vertical-align: middle;
}

/* =========================================================
   移动端适配
   ========================================================= */
@media (max-width: 768px) {
    .zibll-image-preview {
        margin: 12px 0;
    }

    .zibll-preview-main {
        border-radius: 10px;
    }

    /* 移动端箭头默认隐藏，只有 .is-show-arrows 类存在时才显示 */
    /* 关键：覆盖桌面端的 :hover 规则（iOS/Android 触摸会残留 sticky hover 状态） */
    .zibll-image-preview .zibll-preview-arrow,
    .zibll-preview-main:hover .zibll-preview-arrow,
    .zibll-preview-main:focus-within .zibll-preview-arrow {
        width: 36px;
        height: 36px;
        opacity: 0 !important;
        pointer-events: none !important;
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .zibll-image-preview.is-show-arrows .zibll-preview-arrow {
        opacity: 1 !important;
        pointer-events: auto !important;
    }

    /* 视频全屏播放时隐藏箭头，避免遮挡控件 */
    .zibll-image-preview.is-video-playing .zibll-preview-arrow {
        opacity: 0 !important;
        pointer-events: none !important;
    }

    .zibll-preview-arrow svg {
        width: 20px;
        height: 20px;
    }

    .zibll-preview-prev {
        left: 8px;
    }

    .zibll-preview-next {
        right: 8px;
    }

    .zibll-preview-thumb {
        width: 80px;
        height: 45px;
        border-radius: 5px;
    }

    .zibll-preview-counter {
        padding: 2px 8px;
        font-size: 11px;
        bottom: 8px;
        right: 8px;
    }
}

@media (max-width: 480px) {
    .zibll-preview-thumb {
        width: 64px;
        height: 36px;
    }

    .zibll-preview-arrow {
        width: 32px;
        height: 32px;
    }

    .zibll-preview-arrow svg {
        width: 18px;
        height: 18px;
    }
}

/* =========================================================
   触摸设备优化
   ========================================================= */
.zibll-preview-main {
    touch-action: pan-y;
    -webkit-tap-highlight-color: transparent;
}

/* =========================================================
   Gutenberg 对齐：宽幅 / 全幅
   （supports: align wide/full 生效）
   注意：使用 !important 覆盖 PHP render_block 输出的内联 max-width
   ========================================================= */
.zibll-image-preview.alignwide {
    max-width: none !important;
    width: 100% !important;
    /* 宽幅：比文章内容区宽，但不到屏幕边缘 */
    max-width: min(100%, 1100px) !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

.zibll-image-preview.alignfull {
    max-width: none !important;
    width: 100vw !important;
    /* 全幅：从屏幕左边缘到右边缘，使用 margin 负技巧修正父级 padding */
    margin-left: calc(50% - 50vw) !important;
    margin-right: calc(50% - 50vw) !important;
    border-radius: 0;
}

/* 全幅模式下，主预览区和缩略图要做安全边距，防止内容贴边 */
.zibll-image-preview.alignfull .zibll-preview-main {
    border-radius: 0;
}
.zibll-image-preview.alignfull .zibll-preview-thumbs {
    padding-left: 16px;
    padding-right: 16px;
}

@media (max-width: 768px) {
    .zibll-image-preview.alignwide {
        max-width: 100% !important;
    }
}