/**
 * Photo Album for Zibll - 样式系统
 * 
 * 功能特点：
 * - 完全响应式设计，支持移动端和桌面端
 * - 支持瀑布流和网格两种布局模式
 * - 深度集成Zibll主题的样式系统
 * - 支持深色主题和浅色主题切换
 * - 使用CSS变量实现主题定制
 * - 优化的动画效果和交互体验
 * 
 * @author 早清风
 * @version 2.0.0
 * @since 2025
 */

/* ========================================
   1. CSS 变量定义 (CSS Custom Properties)
   使用CSS变量实现主题定制和响应式设计
   ======================================== */
.photo-album-container {
    /* 基础颜色变量 */
    --photo-album-primary: var(--focus-color, var(--theme-color, #f04494));
    --photo-album-primary-hover: var(--theme-color, #f04494);
    --photo-album-secondary: var(--muted-bg-color, #f5f5f5);
    --photo-album-text: var(--main-color, #333);
    --photo-album-text-light: var(--muted-2-color, #666);
    --photo-album-border: var(--main-border-color, #e0e0e0);
    --photo-album-bg: var(--main-bg-color, #fff);
    --photo-album-action: var(--focus-color, var(--theme-color, #f04494));
    --photo-album-action-hover: var(--theme-color, #f04494);
    
    /* 深色主题颜色 */
    /* 布局变量 */
    --photo-album-container-max-width: 1200px;
    --photo-album-gap: 20px;
    --photo-album-border-radius: var(--main-radius, 8px);
    --photo-album-shadow: 0 2px 8px var(--main-shadow, rgba(0, 0, 0, 0.1));
    --photo-album-shadow-hover: 0 4px 16px var(--main-shadow, rgba(0, 0, 0, 0.15));
    
    /* 动画变量 */
    --photo-album-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --photo-album-transition-fast: all 0.2s ease;
    
    /* 瀑布流变量 */
    --photo-album-masonry-columns: 4;
    --photo-album-masonry-columns-tablet: 3;
    --photo-album-masonry-columns-mobile: 2;
    --photo-album-masonry-columns-small: 1;
    --photo-album-masonry-gap: 20px;
    --photo-album-card-description-size: 14px;
    --photo-album-tag-size: 13px;
    --photo-album-image-count-size: 14px;
}

/* ========================================
   2. 深色主题变量覆盖
   支持Zibll主题的深色模式切换
   ======================================== */
/* ========================================
   3. 基础重置和通用样式
   确保与Zibll主题的样式兼容性
   ======================================== */
.photo-album-container {
    max-width: var(--photo-album-container-max-width);
    margin: 0 auto;
    padding: 20px;
    font-family: inherit;
    line-height: 1.6;
    color: var(--photo-album-text);
}

.photo-album-container * {
    box-sizing: border-box;
}

/* ========================================
   4. 相册分组样式
   ======================================== */
.photo-album-section {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.photo-album-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 相册分组描述 */
.album-section-description {
    margin: 0 0 40px 0;
    padding: 20px;
    background: var(--photo-album-bg);
    border-radius: var(--photo-album-border-radius);
    border: 1px solid var(--photo-album-border);
    box-shadow: var(--photo-album-shadow);
    text-align: center;
}

.description-inner {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--photo-album-text-light);
}

/* ========================================
   5. 瀑布流布局系统
   ======================================== */
.masonry-container {
    display: grid;
    grid-template-columns: repeat(var(--photo-album-masonry-columns), 1fr);
    column-gap: var(--photo-album-masonry-gap);
    row-gap: 0;
    margin: 0;
    padding: 0;
}

/* 瀑布流模式 - 使用CSS Columns实现真正的瀑布流 */
.masonry-container.display-mode-masonry {
    display: block;
    column-count: var(--photo-album-masonry-columns);
    column-gap: var(--photo-album-masonry-gap);
    column-fill: balance;
}

/* 网格模式 - 统一高度 */
.masonry-container.display-mode-grid {
    grid-auto-rows: 1fr;
    gap: var(--photo-album-masonry-gap);
}

.masonry-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--photo-album-border-radius);
    box-shadow: var(--photo-album-shadow);
    transition: var(--photo-album-transition);
    background: var(--photo-album-bg);
}

/* 瀑布流模式下的容器高度自适应 */
.display-mode-masonry .masonry-item {
    height: auto;
    margin-bottom: var(--photo-album-masonry-gap);
    display: block;
    break-inside: avoid;
    page-break-inside: avoid;
}

/* 网格模式下的容器高度统一 */
.display-mode-grid .masonry-item {
    height: 100%;
    margin-bottom: 0;
}

.masonry-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--photo-album-shadow-hover);
}

/* 响应式网格 */
@media screen and (max-width: 1200px) {
    .masonry-container {
        grid-template-columns: repeat(var(--photo-album-masonry-columns-tablet), 1fr);
    }
    
    .masonry-container.display-mode-masonry {
        column-count: var(--photo-album-masonry-columns-tablet);
    }
}

@media screen and (max-width: 768px) {
    .masonry-container {
        grid-template-columns: repeat(var(--photo-album-masonry-columns-mobile), 1fr);
    }
    
    .masonry-container.display-mode-masonry {
        column-count: var(--photo-album-masonry-columns-mobile);
        column-gap: 15px;
    }
    
    .masonry-container.display-mode-grid {
        gap: 15px;
    }
}

@media screen and (max-width: 480px) {
    .masonry-container {
        grid-template-columns: repeat(var(--photo-album-masonry-columns-small), 1fr);
    }
    
    .masonry-container.display-mode-masonry {
        column-count: var(--photo-album-masonry-columns-small);
        column-gap: 10px;
    }
    
    .masonry-container.display-mode-grid {
        gap: 10px;
    }
}

/* ========================================
   6. 图片容器和样式
   ======================================== */
.photo-inner {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: var(--photo-album-border-radius);
}

.album-image {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--photo-album-transition);
    background: var(--photo-album-bg);
}

/* 图片描述容器 */
.photo-tooltip {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 20px 15px 15px;
    border-radius: 0 0 var(--photo-album-border-radius) var(--photo-album-border-radius);
    opacity: 0;
    transform: translateY(10px);
    transition: var(--photo-album-transition);
    pointer-events: none;
    max-height: 60%;
    overflow-y: auto;
}

.photo-tooltip.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.tooltip-content {
    font-size: 0.9rem;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* 瀑布流模式 - 保持图片完整显示 */
.display-mode-masonry .album-image {
    width: 100%;
    height: auto;
    display: block;
}

/* 网格模式 - 填充容器，可能裁剪图片 */
.display-mode-grid .album-image {
    height: 100%;
    object-fit: cover;
}

.photo-inner:hover .album-image {
    transform: scale(1.05);
}

/* ========================================
   7. 加载更多功能
   ======================================== */
.load-more-container {
    text-align: center;
    margin: 40px 0;
}

.load-more-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: var(--photo-album-action);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--photo-album-transition);
    box-shadow: var(--photo-album-shadow);
}

.load-more-button:hover {
    background: var(--photo-album-action-hover);
    transform: translateY(-2px);
    box-shadow: var(--photo-album-shadow-hover);
}

.load-more-count {
    font-size: 0.9em;
    opacity: 0.8;
}

.load-more-loading {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    color: var(--photo-album-text-light);
}

/* 加载指示器 */
.loading-indicator {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 40px;
    color: var(--photo-album-text-light);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--photo-album-border);
    border-top: 3px solid var(--photo-album-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-size: 1rem;
    font-weight: 500;
}

/* ========================================
   8. 详情页照片边框样式
   ======================================== */
.photo-frame-simple .masonry-item {
    border: 1px solid var(--photo-album-border);
    border-radius: 10px;
    background: var(--photo-album-bg);
    box-shadow: 0 6px 20px rgba(18, 24, 40, 0.06);
}

.photo-frame-simple .photo-inner {
    border-radius: 9px;
}

.photo-frame-simple .masonry-item:hover {
    box-shadow: 0 12px 28px rgba(18, 24, 40, 0.12);
}

.photo-frame-elegant .masonry-item {
    border: 1px solid var(--photo-album-primary);
    border-color: color-mix(in srgb, var(--photo-album-primary) 58%, var(--photo-album-border));
    border-radius: 14px;
    background: var(--photo-album-bg);
    box-shadow: 0 10px 26px rgba(18, 24, 40, 0.1), 0 0 0 4px rgba(240, 68, 148, 0.08);
    box-shadow: 0 10px 26px rgba(18, 24, 40, 0.1), 0 0 0 4px color-mix(in srgb, var(--photo-album-primary) 12%, transparent);
}

.photo-frame-elegant .masonry-item::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
    pointer-events: none;
}

.photo-frame-elegant .photo-inner {
    border-radius: 13px;
}

.photo-frame-elegant .masonry-item:hover {
    box-shadow: 0 16px 34px rgba(18, 24, 40, 0.14), 0 0 0 5px rgba(240, 68, 148, 0.12);
    box-shadow: 0 16px 34px rgba(18, 24, 40, 0.14), 0 0 0 5px color-mix(in srgb, var(--photo-album-primary) 16%, transparent);
}

.photo-frame-modern .masonry-item {
    border: 1px solid transparent;
    border-radius: 18px;
    background:
        linear-gradient(var(--photo-album-bg), var(--photo-album-bg)) padding-box,
        linear-gradient(135deg, var(--photo-album-primary), var(--photo-album-border) 48%, rgba(255, 255, 255, 0.6)) border-box;
    box-shadow: 0 18px 40px rgba(18, 24, 40, 0.14);
    overflow: hidden;
}

.photo-frame-modern .masonry-item::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent 38%);
    pointer-events: none;
}

.photo-frame-modern .photo-inner {
    border-radius: 17px;
}

.photo-frame-modern .masonry-item:hover {
    box-shadow: 0 22px 48px rgba(18, 24, 40, 0.18);
}

.photo-frame-minimal .masonry-item {
    border: 0;
    border-radius: 6px;
    background: transparent;
    box-shadow: none;
    overflow: visible;
}

.photo-frame-minimal .photo-inner {
    border-radius: 6px;
    box-shadow: none;
}

.photo-frame-minimal .masonry-item:hover {
    transform: translateY(-2px);
    box-shadow: none;
}

/* ========================================
   9. 空状态样式
   ======================================== */
.no-photos-message {
    text-align: center;
    padding: 60px 20px;
    color: var(--photo-album-text-light);
}

.no-photos-message p {
    font-size: 1.1rem;
    margin: 0;
}

/* ========================================
   10. 响应式优化
   ======================================== */
@media screen and (max-width: 768px) {
    .photo-album-container {
        padding: 15px;
    }
    
    .album-section-description {
        margin-bottom: 30px;
        padding: 15px;
    }
}

@media screen and (max-width: 480px) {
    .photo-album-container {
        padding: 10px;
    }
}

/* ========================================
   11. 辅助类
   ======================================== */
.photo-album-hidden {
    display: none;
}

.photo-album-fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

.photo-album-loading {
    opacity: 0.6;
    pointer-events: none;
}

/* ========================================
   12. 打印样式
   ======================================== */
@media print {
    .load-more-container {
        display: none;
    }
    
    .masonry-container {
        display: block;
    }
    
    .masonry-item {
        break-inside: avoid;
        margin-bottom: 20px;
    }
}

/* ========================================
   13. 高对比度模式支持
   ======================================== */
@media (prefers-contrast: high) {
    .masonry-item {
        border: 2px solid var(--photo-album-text);
    }
}

/* ========================================
   14. 图片可点击样式
   ======================================== */
.masonry-item img {
    cursor: pointer;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.masonry-item img:hover {
    transform: scale(1.02);
    opacity: 0.9;
}

/* 相册卡片的封面图不应用可点击样式 */
.album-card .album-cover-image {
    cursor: default;
}

.album-card:hover .album-cover-image {
    transform: scale(1.05);
    opacity: 1;
}

/* 阻止相册卡片封面图的灯箱效果 */
.album-card .album-card-link {
    pointer-events: auto;
}

/* ========================================
   15. 减少动画模式支持
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .photo-album-container,
    .photo-album-container * {
        animation-duration: 0.01ms;
        animation-iteration-count: 1;
        transition-duration: 0.01ms;
    }
}

/* ========================================
   16. Zibll主题夜间模式支持
   ======================================== */
/* 夜间模式下图片描述容器样式 */
/* ========================================
   17. 相册列表页样式
   ======================================== */

/* 相册卡片容器 */
.album-list-container {
    display: grid;
    grid-template-columns: repeat(var(--photo-album-masonry-columns), 1fr);
    gap: var(--photo-album-masonry-gap);
    margin: 0;
    padding: 0;
}

/* 相册卡片 */
.album-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--photo-album-border-radius);
    box-shadow: var(--photo-album-shadow);
    transition: var(--photo-album-transition);
    background: var(--photo-album-bg);
    border: 1px solid var(--photo-album-border);
}

.album-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--photo-album-shadow-hover);
}

/* 相册组卡片边框样式 */
.album-card-frame-simple .album-card {
    border: 1px solid var(--photo-album-border);
    border-radius: 10px;
    background: var(--photo-album-bg);
    box-shadow: 0 6px 20px rgba(18, 24, 40, 0.06);
}

.album-card-frame-simple .album-card:hover {
    box-shadow: 0 12px 28px rgba(18, 24, 40, 0.12);
}

.album-card-frame-elegant .album-card {
    border: 1px solid var(--photo-album-primary);
    border-color: color-mix(in srgb, var(--photo-album-primary) 58%, var(--photo-album-border));
    border-radius: 14px;
    background: var(--photo-album-bg);
    box-shadow: 0 10px 26px rgba(18, 24, 40, 0.1), 0 0 0 4px rgba(240, 68, 148, 0.08);
    box-shadow: 0 10px 26px rgba(18, 24, 40, 0.1), 0 0 0 4px color-mix(in srgb, var(--photo-album-primary) 12%, transparent);
}

.album-card-frame-elegant .album-card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
    pointer-events: none;
}

.album-card-frame-elegant .album-card:hover {
    box-shadow: 0 16px 34px rgba(18, 24, 40, 0.14), 0 0 0 5px rgba(240, 68, 148, 0.12);
    box-shadow: 0 16px 34px rgba(18, 24, 40, 0.14), 0 0 0 5px color-mix(in srgb, var(--photo-album-primary) 16%, transparent);
}

.album-card-frame-modern .album-card {
    border: 1px solid transparent;
    border-radius: 18px;
    background:
        linear-gradient(var(--photo-album-bg), var(--photo-album-bg)) padding-box,
        linear-gradient(135deg, var(--photo-album-primary), var(--photo-album-border) 48%, rgba(255, 255, 255, 0.6)) border-box;
    box-shadow: 0 18px 40px rgba(18, 24, 40, 0.14);
    overflow: hidden;
}

.album-card-frame-modern .album-card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), transparent 32%);
    pointer-events: none;
}

.album-card-frame-modern .album-card:hover {
    box-shadow: 0 22px 48px rgba(18, 24, 40, 0.18);
}

.album-card-frame-minimal .album-card {
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    overflow: visible;
}

.album-card-frame-minimal .album-card:hover {
    transform: translateY(-2px);
    box-shadow: none;
}

/* 相册卡片链接 */
.album-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

/* 相册封面图 */
.album-card-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    padding-top: 0;
    overflow: hidden;
    background: var(--photo-album-secondary);
    line-height: 0;
}

.album-card-frame-simple .album-card-cover {
    border-radius: 9px 9px 0 0;
}

.album-card-frame-elegant .album-card-cover {
    border-radius: 13px 13px 0 0;
}

.album-card-frame-modern .album-card-cover {
    border-radius: 17px 17px 0 0;
}

.album-card-frame-minimal .album-card-cover {
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(18, 24, 40, 0.1);
}

.album-card-frame-minimal .album-card:hover .album-card-cover {
    box-shadow: 0 12px 32px rgba(18, 24, 40, 0.14);
}

.album-card-frame-minimal .album-card-info {
    padding: 18px 0 0;
}

.photo-album-container .album-card-cover .album-cover-image {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100% !important;
    max-width: none;
    max-height: none;
    object-fit: cover;
    object-position: center;
    transition: var(--photo-album-transition);
}

.album-card:hover .album-cover-image {
    transform: scale(1.05);
}

/* 相册卡片信息 */
.album-card-info {
    padding: 20px;
}

.album-card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0 10px 0;
    color: var(--photo-album-text);
}

.album-card-description {
    font-size: var(--photo-album-card-description-size);
    color: var(--photo-album-text-light);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 相册卡片元数据 */
.album-card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 12px;
    padding-top: 15px;
    border-top: 1px solid var(--photo-album-border);
}

.album-card-count {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
    gap: 5px;
    font-size: var(--photo-album-image-count-size);
    line-height: 1.5;
    font-weight: 500;
    white-space: nowrap;
    color: var(--photo-album-text-light);
}

.album-card-count i {
    font-size: calc(var(--photo-album-image-count-size) + 1px);
    color: var(--photo-album-primary);
}

/* 相册卡片标签 */
.album-tag {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    min-height: 28px;
    padding: 4px 12px;
    background: var(--photo-album-secondary);
    border: 1px solid var(--photo-album-border);
    border-radius: 999px;
    font-size: var(--photo-album-tag-size);
    line-height: 1.35;
    font-weight: 500;
    white-space: nowrap;
    color: var(--photo-album-text-light);
    cursor: default;
}

/* 相册卡片响应式 */
@media screen and (max-width: 1200px) {
    .album-list-container {
        grid-template-columns: repeat(var(--photo-album-masonry-columns-tablet), 1fr);
    }
}

@media screen and (max-width: 768px) {
    .album-list-container {
        grid-template-columns: repeat(var(--photo-album-masonry-columns-mobile), 1fr);
    }
    
    .album-card-info {
        padding: 15px;
    }
    
    .album-card-title {
        font-size: 1.1rem;
    }
}

@media screen and (max-width: 480px) {
    .album-list-container {
        grid-template-columns: repeat(var(--photo-album-masonry-columns-small), 1fr);
    }
    
    .album-card-info {
        padding: 12px;
    }
    
    .album-card-title {
        font-size: 1rem;
    }
    
    .album-card-description {
        font-size: var(--photo-album-card-description-size);
        line-height: 1.6;
        -webkit-line-clamp: 2;
    }
}

/* ========================================
   18. 面包屑导航样式
   ======================================== */

.album-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px 22px;
    background: var(--photo-album-bg);
    border: 1px solid var(--photo-album-border);
    border-radius: var(--photo-album-border-radius);
    font-size: 15px;
    line-height: 1.65;
    margin-bottom: 20px;
}

.back-button {
    margin-left: auto;
}

.breadcrumb-item {
    color: var(--photo-album-text-light);
    text-decoration: none;
    transition: var(--photo-album-transition);
    display: flex;
    align-items: center;
    gap: 7px;
}

.breadcrumb-item i {
    font-size: 15px;
}

.breadcrumb-item:hover {
    color: var(--photo-album-primary);
}

.breadcrumb-item.active {
    color: var(--photo-album-text);
    font-weight: 600;
}

.breadcrumb-separator {
    color: var(--photo-album-text-light);
    opacity: 0.5;
}

/* ========================================
   19. 返回按钮样式
   ======================================== */

.back-button {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 11px 22px;
    min-height: 44px;
    background: var(--photo-album-bg);
    border: 1px solid var(--photo-album-border);
    border-radius: 25px;
    color: var(--photo-album-text);
    text-decoration: none;
    font-size: 15px;
    line-height: 1.5;
    font-weight: 600;
    transition: var(--photo-album-transition);
    box-shadow: var(--photo-album-shadow);
}

.back-button:hover {
    background: var(--photo-album-action);
    color: white;
    border-color: var(--photo-album-action);
    transform: translateX(-3px);
    box-shadow: var(--photo-album-shadow-hover);
}

.back-button i {
    font-size: 15px;
    transition: var(--photo-album-transition);
}

.back-button:hover i {
    transform: translateX(-3px);
}

/* 面包屑和返回按钮响应式 */
@media screen and (max-width: 768px) {
    .album-breadcrumb {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .back-button {
        padding: 9px 18px;
        min-height: 40px;
        font-size: 14px;
    }
}

@media screen and (max-width: 480px) {
    .album-breadcrumb {
        padding: 10px 12px;
        font-size: 14px;
        gap: 8px;
    }
    
    .back-button {
        padding: 8px 14px;
        min-height: 38px;
        font-size: 14px;
    }
}

/* 夜间模式下的相册卡片样式 */
/* 夜间模式下的面包屑和返回按钮样式 */