/**
 * 素材预览弹窗样式
 * 符合代码规范：<400行
 */

/* 预览弹窗 */
#materialPreviewModal {
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    opacity: 0;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 弹窗显示状态 */
#materialPreviewModal.show {
    opacity: 1;
}

/* 弹窗关闭动画 */
#materialPreviewModal.closing {
    opacity: 0;
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.material-preview-modal {
    max-width: 1560px;
    width: min(1560px, 98vw);
    max-height: calc(80vh + 60px); /* 增加60px高度，让缩略图窗口有更多显示空间 */
    margin: 8vh auto;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-primary);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    opacity: 0;
    transform: scale(0.9) translateY(20px);
    transition: opacity 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 弹窗打开动画 */
.material-preview-modal.show {
    opacity: 1;
    transform: scale(1) translateY(0);
}

/* 弹窗关闭动画 */
.material-preview-modal.closing {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 关闭按钮 */
.material-preview-close {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 100;
    color: var(--text-primary);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.material-preview-close:hover {
    background: var(--bg-hover);
    color: var(--text-accent);
}

/* 弹窗内容 */
.material-preview-content {
    flex: 1;
    padding: 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
}

.material-preview-layout {
    display: flex;
    gap: 20px;
    height: 100%;
    min-height: 0;
}

/* 左侧主图预览区域 */
.material-preview-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

.preview-main-image-container {
    flex: 1;
    position: relative;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    min-width: 0;
    max-height: 100%;
}

.preview-main-image-container.preview-main-image-container--panable {
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
}

.preview-main-image-container.preview-main-image-container--panable:active {
    cursor: grabbing;
}

/* 主预览区下方操作提示（图片模式显示，居中） */
.preview-main-image-hint {
    margin: 0;
    padding: 6px 12px 0;
    text-align: center;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    font-size: 11px;
    line-height: 1.4;
    color: var(--text-secondary, #888888);
    flex-shrink: 0;
}

/* 预览弹窗分类标签（主图预览区域左上角） */
.preview-category-tag {
    position: absolute;
    top: 6px;
    left: 6px;
    padding: 6px 12px;
    background: rgba(0, 0, 0, 0.75);
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    line-height: 1.2;
    z-index: 20;
    pointer-events: none;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
    max-width: calc(100% - 12px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-main-image-container:hover .preview-category-tag {
    background: rgba(0, 0, 0, 0.85);
    transform: translateY(2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.preview-main-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: opacity 0.3s ease;
    filter: none !important; /* 确保预览弹窗中的图片不会有任何滤镜效果，包括蓝色调 */
    position: relative;
    z-index: 1;
}

/* 可交互缩放/拖动时由脚本设置绝对定位与像素尺寸 */
.preview-main-image.preview-main-image--interactive {
    position: absolute;
    left: 50%;
    top: 50%;
    max-width: none;
    max-height: none;
    object-fit: contain;
    transition: opacity 0.3s ease;
}

/* 视频播放器容器 */
.preview-video-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}

.preview-main-video {
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    user-select: none;
    -webkit-user-select: none;
}

.preview-video-container:focus {
    outline: none;
}

.preview-video-container:focus-visible {
    outline: 2px solid var(--text-accent, #667eea);
    outline-offset: 2px;
}

/* 倍速提示（右下角，位于控制条上方） */
.preview-video-speed-hint {
    position: absolute;
    right: 16px;
    bottom: 58px;
    max-width: 280px;
    padding: 10px 14px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #fff;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    pointer-events: none;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.22s ease, transform 0.22s ease;
    z-index: 3;
}

.preview-video-speed-hint.preview-video-speed-hint--visible {
    opacity: 1;
    transform: translateY(0);
}

.preview-video-speed-hint__title {
    font-size: 15px;
    font-weight: bold;
    line-height: 1.35;
    margin-bottom: 6px;
}

.preview-video-speed-hint__tip {
    font-size: 12px;
    line-height: 1.45;
    color: rgba(255, 255, 255, 0.88);
}

.preview-video-container:fullscreen .preview-video-speed-hint,
.preview-video-container:-webkit-full-screen .preview-video-speed-hint {
    bottom: 72px;
}

/* 视频播放控件 */
.preview-video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transition: opacity 0.3s ease;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

.preview-video-container:hover .preview-video-controls {
    opacity: 1;
}

.preview-video-container:fullscreen .preview-video-controls,
.preview-video-container:-webkit-full-screen .preview-video-controls {
    opacity: 1;
}

.preview-video-control-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.preview-video-control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.preview-video-control-btn .play-icon,
.preview-video-control-btn .pause-icon {
    display: inline-block;
}

.preview-video-progress-container {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    cursor: pointer;
    position: relative;
}

.preview-video-progress-bar {
    width: 100%;
    height: 100%;
    position: relative;
    border-radius: 3px;
}

.preview-video-progress-fill {
    height: 100%;
    background: var(--text-accent, #667eea);
    border-radius: 3px;
    width: 0%;
    transition: width 0.1s linear;
}

.preview-video-time {
    color: #fff;
    font-size: 12px;
    min-width: 80px;
    text-align: right;
    flex-shrink: 0;
}

.preview-video-volume {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    font-size: 12px;
    color: #fff;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

.preview-video-volume-label {
    white-space: nowrap;
    opacity: 0.9;
}

.preview-video-volume-slider {
    width: 80px;
    height: 6px;
    cursor: pointer;
    accent-color: var(--text-accent, #667eea);
}

.preview-video-fs-btn {
    min-width: 36px;
    font-size: 14px;
    padding: 0 6px;
}

.preview-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-primary);
    border-top-color: var(--text-accent);
    border-radius: 50%;
    animation: spinner-rotate 1s linear infinite;
}

@keyframes spinner-rotate {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 小图预览区域 */
.material-preview-thumbnails {
    position: relative;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden; /* 改回hidden，防止内容溢出 */
    display: flex;
    align-items: center;
    flex-shrink: 0;
    min-height: 140px; /* 增加高度，确保缩略图完整显示：100px图片 + 24px上下padding + 16px边框和间距 */
    height: 140px; /* 增加高度，确保缩略图完整显示 */
}

.thumbnails-container {
    display: flex;
    gap: 10px;
    padding: 12px 40px; /* 上下padding，确保边框完整显示 */
    overflow-x: auto; /* 只允许横向滚动 */
    overflow-y: hidden; /* 禁止纵向滚动，不显示上下滚动条 */
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--border-primary) transparent;
    align-items: center;
    width: 100%;
    height: 100%;
    min-height: 116px; /* 140px - 24px padding = 116px */
}

.thumbnails-container::-webkit-scrollbar {
    height: 6px;
}

.thumbnails-container::-webkit-scrollbar-track {
    background: transparent;
}

.thumbnails-container::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}

.thumbnails-container::-webkit-scrollbar-thumb:hover {
    background: var(--border-secondary);
}

.thumbnail-item {
    flex-shrink: 0;
    aspect-ratio: 16 / 9;
    width: 180px;
    height: 100px;
    border-radius: var(--radius-sm);
    overflow: hidden; /* 图片内容不超出，但边框完整显示 */
    cursor: pointer;
    border: 2px solid var(--border-primary);
    transition: all 0.2s ease;
    position: relative;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box; /* 确保边框包含在尺寸内 */
}

.thumbnail-item:hover {
    border-color: var(--border-accent);
    transform: scale(1.05);
}

/* 当前选中项（点击或键盘左右键与主区联动；限定在预览条带内，避免影响全局 .thumbnail-item） */
.material-preview-thumbnails .thumbnail-item.active {
    border-color: var(--text-accent, var(--border-accent));
    box-shadow:
        0 0 0 2px color-mix(in srgb, var(--text-accent, #3b82f6) 35%, transparent),
        0 4px 14px rgba(0, 0, 0, 0.35);
    transform: scale(1.06);
    z-index: 2;
}

.material-preview-thumbnails .thumbnail-item.active:hover {
    border-color: var(--text-accent, var(--border-accent));
    transform: scale(1.08);
    box-shadow:
        0 0 0 2px color-mix(in srgb, var(--text-accent, #3b82f6) 45%, transparent),
        0 6px 18px rgba(0, 0, 0, 0.4);
}

.thumbnail-item img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    background: var(--bg-tertiary);
}

/* 缩略图视频播放图标 - 居中显示 */
.thumbnail-item .video-play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 20px;
    z-index: 5;
    pointer-events: none;
    transition: all 0.2s ease;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.thumbnail-item:hover .video-play-icon {
    background: rgba(0, 0, 0, 0.85);
    transform: translate(-50%, -50%) scale(1.1);
}

.thumbnail-item.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
}

.thumbnail-item.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-primary);
    border-top-color: var(--text-accent);
    border-radius: 50%;
    animation: spinner-rotate 1s linear infinite;
}

/* 缩略图导航按钮 */
.thumbnail-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 10;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

.thumbnail-nav-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-accent);
    color: var(--text-accent);
}

.thumbnail-nav-prev {
    left: 8px;
}

.thumbnail-nav-next {
    right: 8px;
}

/* 右侧信息区域 */
.material-preview-info {
    width: 350px;
    min-width: 350px;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    overflow: hidden;
}

.preview-info-content {
    padding: 20px;
    padding-bottom: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
    position: relative;
}

.preview-info-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.4;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

.preview-info-rating,
.preview-info-tags,
.preview-info-description,
.preview-info-file {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.preview-info-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

.preview-rating-stars {
    display: flex;
    gap: 2px;
    align-items: center;
}

.preview-rating-star {
    font-size: 18px;
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.preview-rating-star.filled {
    color: #ffc107;
}

.preview-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.preview-tag {
    display: inline-block;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-primary);
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
}

.preview-description-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    max-height: 500px;
    overflow-y: auto;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-primary);
}

.preview-file-info {
    font-size: 13px;
    color: var(--text-primary);
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-primary);
}

.preview-file-name {
    margin-bottom: 4px;
    font-weight: 500;
}

.preview-file-size {
    color: var(--text-secondary);
    font-size: 12px;
}

/* 操作按钮 */
.preview-info-actions {
    margin-top: auto;
    padding: 20px;
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 0;
    flex-shrink: 0;
    position: sticky;
    bottom: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    z-index: 10;
}

/* 素材预览弹窗的下载按钮 - 需要覆盖全局隐藏规则 */
/* 使用最高优先级选择器覆盖全局规则 */
#materialPreviewModal .material-preview-modal .preview-info-actions button.btn-download,
#materialPreviewModal .material-preview-modal .preview-info-content .preview-info-actions button.btn-download,
#materialPreviewModal button#previewDownloadBtn,
.material-preview-modal button#previewDownloadBtn,
#materialPreviewModal .btn-download,
.material-preview-modal .btn-download,
.preview-info-content .btn-download,
.preview-info-actions .btn-download {
    width: 100% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    padding: 12px 20px !important;
    background: var(--gradient-primary) !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    color: var(--text-primary) !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    font-family: "Microsoft YaHei", "微软雅黑", "SimSun", "宋体", "Arial", sans-serif !important;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    position: relative !important;
    left: auto !important;
    top: auto !important;
    z-index: 9999 !important;
    margin: 0 !important;
    height: auto !important;
}

#materialPreviewModal .material-preview-modal .preview-info-actions button.btn-download:hover:not(:disabled),
#materialPreviewModal button#previewDownloadBtn:hover:not(:disabled),
.material-preview-modal button#previewDownloadBtn:hover:not(:disabled),
#materialPreviewModal .btn-download:hover:not(:disabled),
.material-preview-modal .btn-download:hover:not(:disabled),
.preview-info-content .btn-download:hover:not(:disabled),
.preview-info-actions .btn-download:hover:not(:disabled) {
    transform: translateY(-2px) !important;
    box-shadow: var(--shadow-md) !important;
}

#materialPreviewModal .material-preview-modal .preview-info-actions button.btn-download:disabled,
#materialPreviewModal button#previewDownloadBtn:disabled,
.material-preview-modal button#previewDownloadBtn:disabled,
#materialPreviewModal .btn-download:disabled,
.material-preview-modal .btn-download:disabled,
.preview-info-content .btn-download:disabled,
.preview-info-actions .btn-download:disabled {
    opacity: 0.5 !important;
    cursor: not-allowed !important;
    background: var(--bg-tertiary) !important;
    color: var(--text-muted) !important;
    border: 1px solid var(--border-primary) !important;
    transform: none !important;
    box-shadow: none !important;
}

#materialPreviewModal .material-preview-modal .preview-info-actions button.btn-download:disabled:hover,
#materialPreviewModal button#previewDownloadBtn:disabled:hover,
.material-preview-modal button#previewDownloadBtn:disabled:hover,
#materialPreviewModal .btn-download:disabled:hover,
.material-preview-modal .btn-download:disabled:hover,
.preview-info-content .btn-download:disabled:hover,
.preview-info-actions .btn-download:disabled:hover {
    transform: none !important;
    box-shadow: none !important;
}

.btn-icon {
    font-size: 16px;
}

.btn-text {
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .material-preview-layout {
        flex-direction: column;
    }

    .material-preview-info {
        width: 100%;
        min-width: 0;
    }

    .preview-main-image-container {
        min-height: 300px;
    }
}

/* 滚动条样式 */
.preview-info-content::-webkit-scrollbar {
    width: 6px;
}

.preview-info-content::-webkit-scrollbar-track {
    background: transparent;
}

.preview-info-content::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}

.preview-info-content::-webkit-scrollbar-thumb:hover {
    background: var(--border-secondary);
}

/* 详情信息滚动条样式 - 深色 */
.preview-description-text::-webkit-scrollbar {
    width: 6px;
}

.preview-description-text::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.preview-description-text::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}

.preview-description-text::-webkit-scrollbar-thumb:hover {
    background: var(--border-secondary);
}