/* AI Gallery 现代化样式 */
.ai-gallery-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* 过滤器按钮样式 */
.gallery-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.filter-btn {
    background: var(--glass-bg-light);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border-light);
    border-radius: 25px;
    padding: 12px 24px;
    color: var(--color-text);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-tech);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
    opacity: 0.1;
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.filter-btn.active {
    background: var(--color-accent);
    color: white;
}

.filter-btn.active::before {
    opacity: 0;
}

/* 图库网格样式 - 默认网格布局 */
.gallery-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.gallery-grid[data-columns="2"] {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.gallery-grid[data-columns="3"] {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.gallery-grid[data-columns="4"] {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* 瀑布流布局 - 覆盖网格样式 */
.ai-gallery-container[data-style="masonry"] .gallery-grid {
    display: block; /* 移除grid布局 */
    column-count: 3;
    column-gap: 20px;
    column-fill: balance;
}

/* 动态列数支持 */
.ai-gallery-container[data-style="masonry"][data-columns="1"] .gallery-grid {
    column-count: 1;
}

.ai-gallery-container[data-style="masonry"][data-columns="2"] .gallery-grid {
    column-count: 2;
}

.ai-gallery-container[data-style="masonry"][data-columns="3"] .gallery-grid {
    column-count: 3;
}

.ai-gallery-container[data-style="masonry"][data-columns="4"] .gallery-grid {
    column-count: 4;
}

.ai-gallery-container[data-style="masonry"][data-columns="5"] .gallery-grid {
    column-count: 5;
}

/* 瀑布流项目样式 */
.ai-gallery-container[data-style="masonry"] .gallery-item {
    break-inside: avoid;
    page-break-inside: avoid; /* 兼容性 */
    -webkit-column-break-inside: avoid; /* 兼容性 */
    margin-bottom: 20px;
    display: inline-block;
    width: 100%;
    box-sizing: border-box;
}

/* 图库项目样式 */
.gallery-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: var(--color-background);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease-out forwards;
}

.gallery-item:nth-child(1) { animation-delay: 0.1s; }
.gallery-item:nth-child(2) { animation-delay: 0.2s; }
.gallery-item:nth-child(3) { animation-delay: 0.3s; }
.gallery-item:nth-child(4) { animation-delay: 0.4s; }
.gallery-item:nth-child(5) { animation-delay: 0.5s; }
.gallery-item:nth-child(6) { animation-delay: 0.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gallery-item-inner {
    position: relative;
    width: 100%;
    overflow: hidden;
}

/* 懒加载图片容器 */
.gallery-image-container {
    position: relative;
    width: 100%;
    height: 0;
    overflow: hidden;
    background: #f5f5f5;
}

.gallery-lazy-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.4s ease;
    opacity: 0;
}

.gallery-lazy-image.loaded {
    opacity: 1;
}

/* 图片占位符 */
.gallery-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    transition: opacity 0.3s ease;
}

.gallery-lazy-image.loaded + .gallery-image-placeholder {
    opacity: 0;
    pointer-events: none;
}

/* 占位符加载动画 */
.placeholder-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #e0e0e0;
    border-top: 3px solid var(--color-accent, #007cba);
    border-radius: 50%;
    animation: placeholderSpin 1s linear infinite;
}

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

/* 兼容旧的img样式 */
.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: all 0.4s ease;
}

.gallery-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* 悬停遮罩层 */
.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.1) 0%,
        rgba(0, 0, 0, 0.7) 100%
    );
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    padding: 20px;
    opacity: 0;
    transition: all 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay h4 {
    color: white;
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 12px;
    text-align: center;
}

/* AI 提示信息样式 */
.gallery-prompt {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    padding: 8px 12px;
    margin: 8px 0;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.prompt-label {
    font-weight: 600;
    color: var(--color-accent);
}

.prompt-text {
    font-style: italic;
}

.gallery-model {
    margin-top: 8px;
}

.model-tag {
    background: var(--gradient-tech);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.gallery-view-btn {
    display: inline-block;
    background: var(--gradient-tech);
    border: none;
    border-radius: 25px;
    padding: 10px 20px;
    color: white !important;
    text-decoration: none !important;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(10px);
    z-index: 10;
    position: relative;
}

.gallery-item:hover .gallery-view-btn {
    opacity: 1;
    transform: translateY(0);
}

.gallery-view-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white !important;
    text-decoration: none !important;
}

/* 确保View按钮在点击时不会触发父元素的事件 */
.gallery-view-btn:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* 隐藏/显示动画 */
.gallery-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    margin: 0;
    height: 0;
    overflow: hidden;
}

.gallery-item.visible {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

/* 加载更多按钮 */
.load-more-btn {
    display: block;
    margin: 40px auto 0;
    padding: 12px 30px;
    background: var(--gradient-tech);
    color: white;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.load-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 加载器样式 */
.gallery-loader {
    display: none;
    text-align: center;
    padding: 40px;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top: 4px solid var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

/* 模态框样式 */
.gallery-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    margin: 5% auto;
    padding: 20px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--color-background);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    color: var(--color-text);
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.2);
    transform: rotate(90deg);
}

.modal-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    transition: opacity 0.3s ease;
}

.modal-image.loading {
    opacity: 0.5;
}

.modal-image.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--color-accent, #007cba);
    border-radius: 50%;
    animation: modalImageSpin 1s linear infinite;
}

@keyframes modalImageSpin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.modal-info {
    padding: 20px 0;
}

.modal-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-text);
}

.modal-description {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 15px;
}

.modal-meta {
    display: flex;
    gap: 15px;
    font-size: 14px;
    color: var(--color-text-muted);
}

/* 模态框导航 */
.modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    width: 100%;
    pointer-events: none;
}

.modal-prev,
.modal-next {
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: auto;
}

.modal-prev:hover,
.modal-next:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .ai-gallery-container[data-style="masonry"] .gallery-grid {
        column-count: 2;
    }
    
    .gallery-grid[data-columns="4"] {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .ai-gallery-container {
        padding: 20px 15px;
    }
    
    .ai-gallery-container[data-style="masonry"] .gallery-grid {
        column-count: 1;
        column-gap: 0;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    .modal-content {
        width: 95%;
        margin: 2% auto;
        padding: 15px;
    }
    
    .modal-image {
        border-radius: 8px;
    }
    
    .modal-info {
        padding: 15px 0;
    }
}

/* 深色模式样式 */
:root[data-theme="dark"] .gallery-item,
:root[data-theme="dark"] .modal-content {
    background: var(--color-background-dark);
    border: 1px solid var(--glass-border-dark);
}

:root[data-theme="dark"] .filter-btn,
:root[data-theme="dark"] .load-more-btn {
    background: var(--glass-bg-dark);
    border-color: var(--glass-border-dark);
    color: var(--color-text-dark);
}

:root[data-theme="dark"] .modal-content,
:root[data-theme="dark"] .gallery-item {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

:root[data-theme="dark"] .modal-info,
:root[data-theme="dark"] .gallery-overlay h4 {
    color: var(--color-text-dark);
}

/* 无图片消息样式 */
.no-images-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: #666;
    font-size: 16px;
    background: var(--glass-bg-light);
    border-radius: 12px;
    border: 2px dashed #ddd;
    margin: 20px 0;
}

/* 过滤中状态 */
.ai-gallery-container.filtering .gallery-grid {
    opacity: 0.7;
    pointer-events: none;
}

.ai-gallery-container.filtering .gallery-loader {
    display: flex;
}

/* 深色模式下的无图片消息 */
:root[data-theme="dark"] .no-images-message {
    background: var(--glass-bg-dark);
    border-color: var(--glass-border-dark);
    color: var(--color-text-dark);
}

/* 移动端无图片消息优化 */
@media (max-width: 768px) {
    .no-images-message {
        padding: 40px 15px;
        font-size: 14px;
    }
}

/* 暗色主题下的懒加载样式 */
:root[data-theme="dark"] .gallery-image-container {
    background: #2a2a2a;
}

:root[data-theme="dark"] .gallery-image-placeholder {
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

:root[data-theme="dark"] .placeholder-spinner {
    border-color: #404040;
    border-top-color: var(--color-accent, #007cba);
}

/* 图片加载错误样式 */
.gallery-lazy-image.error {
    display: none;
}

.error-message {
    color: #666;
    font-size: 14px;
    text-align: center;
    padding: 20px;
}

:root[data-theme="dark"] .error-message {
    color: #999;
}