/**
 * Category Tabs Shortcode Styles
 * 分类标签切换短代码样式
 */

/* 主容器 */
.category-tabs-wrapper {
    margin: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 分类标签导航 */
.category-tabs-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e5e5e5;
}

.category-tabs-nav .tab-btn {
    padding: 10px 20px;
    border: 1px solid #ddd;
    border-radius: 25px;
    background: #f8f9fa;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
}

.category-tabs-nav .tab-btn:hover {
    background: #e9ecef;
    border-color: #0073aa;
    color: #0073aa;
}

.category-tabs-nav .tab-btn.active {
    background: #0073aa;
    border-color: #0073aa;
    color: #fff;
    box-shadow: 0 2px 8px rgba(0, 115, 170, 0.3);
}

/* 内容区域 */
.category-tabs-content {
    position: relative;
    min-height: 200px;
}

/* 加载动画 */
.category-tabs-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #0073aa;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* 内容网格 */
.category-tabs-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(var(--columns, 4), 1fr);
}

.category-tabs-grid[data-columns="2"] { --columns: 2; }
.category-tabs-grid[data-columns="3"] { --columns: 3; }
.category-tabs-grid[data-columns="4"] { --columns: 4; }
.category-tabs-grid[data-columns="5"] { --columns: 5; }
.category-tabs-grid[data-columns="6"] { --columns: 6; }

/* 卡片样式 */
.category-tabs-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.category-tabs-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.category-tabs-card .card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.category-tabs-card .card-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 比例 */
    overflow: hidden;
    background: #f5f5f5;
}

.category-tabs-card .card-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.category-tabs-card:hover .card-thumbnail img {
    transform: scale(1.05);
}

.category-tabs-card .card-content {
    padding: 15px;
}

.category-tabs-card .card-title {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: #333;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.category-tabs-card:hover .card-title {
    color: #0073aa;
}

/* 空状态 */
.category-tabs-empty {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 16px;
}

.category-tabs-notice {
    text-align: center;
    padding: 20px;
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    color: #856404;
}

/* 查看更多按钮 */
.category-tabs-more {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
}

.category-tabs-more .more-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: linear-gradient(135deg, #0073aa 0%, #005a87 100%);
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 115, 170, 0.3);
}

.category-tabs-more .more-btn:hover {
    background: linear-gradient(135deg, #005a87 0%, #004165 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 115, 170, 0.4);
}

.category-tabs-more .more-arrow {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.category-tabs-more .more-btn:hover .more-arrow {
    transform: translateX(4px);
}


/* 响应式设计 - 平板 */
@media screen and (max-width: 1024px) {
    .category-tabs-grid[data-columns="5"],
    .category-tabs-grid[data-columns="6"] {
        --columns: 4;
    }
    
    .category-tabs-nav .tab-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
}

/* 响应式设计 - 手机 */
@media screen and (max-width: 768px) {
    .category-tabs-nav {
        display: flex;
        flex-wrap: nowrap;
        justify-content: flex-start;
        gap: 0;
        margin-bottom: 18px;
        padding: 0;
        padding-bottom: 0;
        border-bottom: none;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .category-tabs-nav::-webkit-scrollbar {
        display: none;
    }
    
    .category-tabs-nav .tab-btn {
        flex: 0 0 auto;
        padding: 12px 20px;
        font-size: 15px;
        font-weight: 500;
        border: none;
        border-radius: 0;
        background: transparent;
        color: #666;
        position: relative;
        white-space: nowrap;
        transition: all 0.25s ease;
    }
    
    .category-tabs-nav .tab-btn::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 3px;
        background: linear-gradient(90deg, #0073aa, #00a0d2);
        border-radius: 3px 3px 0 0;
        transition: width 0.25s ease;
    }
    
    .category-tabs-nav .tab-btn:hover {
        color: #0073aa;
        background: transparent;
        border-color: transparent;
    }
    
    .category-tabs-nav .tab-btn.active {
        color: #0073aa;
        font-weight: 600;
        background: transparent;
        box-shadow: none;
    }
    
    .category-tabs-nav .tab-btn.active::after {
        width: 60%;
    }
    
    /* 添加底部分割线 */
    .category-tabs-wrapper .category-tabs-nav {
        border-bottom: 1px solid #eee;
        margin-left: -15px;
        margin-right: -15px;
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .category-tabs-grid {
        gap: 12px;
        grid-template-columns: repeat(var(--mobile-columns, 2), 1fr);
    }
    
    .category-tabs-grid[data-mobile-columns="1"] { --mobile-columns: 1; }
    .category-tabs-grid[data-mobile-columns="2"] { --mobile-columns: 2; }
    .category-tabs-grid[data-mobile-columns="3"] { --mobile-columns: 3; }
    
    .category-tabs-card {
        border-radius: 8px;
    }
    
    .category-tabs-card .card-content {
        padding: 12px;
    }
    
    .category-tabs-card .card-title {
        font-size: 14px;
    }
    
    .category-tabs-more {
        margin-top: 20px;
        padding-top: 15px;
    }
    
    .category-tabs-more .more-btn {
        padding: 11px 28px;
        font-size: 14px;
        border-radius: 25px;
    }
}

/* 响应式设计 - 小屏手机 */
@media screen and (max-width: 480px) {
    .category-tabs-nav .tab-btn {
        padding: 11px 16px;
        font-size: 14px;
    }
    
    .category-tabs-grid {
        gap: 10px;
    }
    
    .category-tabs-card .card-content {
        padding: 10px;
    }
    
    .category-tabs-card .card-title {
        font-size: 13px;
    }
    
    .category-tabs-more .more-btn {
        padding: 10px 24px;
        font-size: 14px;
    }
}