/**
 * 文章分类页面现代化样式
 * 适配紫色主题风格
 */

/* ========================================
   变量定义
   ======================================== */
:root {
    --article-primary: #9c27b0;
    --article-primary-hover: #7b1fa2;
    --article-primary-light: rgba(156, 39, 176, 0.1);
    --article-bg: #ffffff;
    --article-border: #e8e8e8;
    --article-border-light: #f0f0f0;
    --article-text: #333333;
    --article-text-secondary: #6c757d;
    --article-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --article-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    --article-radius: 12px;
    --article-radius-sm: 8px;
    --article-transition: all 0.3s ease;
}

/* ========================================
   容器样式
   ======================================== */
.article-category-container {
    padding: 0 15px 40px;
}

/* ========================================
   主卡片样式
   ======================================== */
.article-main-card {
    background: var(--article-bg);
    border-radius: var(--article-radius);
    box-shadow: var(--article-shadow);
    overflow: hidden;
}

/* ========================================
   卡片头部
   ======================================== */
.article-card-header {
    padding: 32px 32px 24px;
    border-bottom: 1px solid var(--article-border-light);
    background: linear-gradient(135deg, #fafafa 0%, #ffffff 100%);
}

.category-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--article-text);
    margin: 0 0 8px;
    position: relative;
    display: inline-block;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--article-primary);
    border-radius: 2px;
}

.category-summary {
    font-size: 15px;
    color: var(--article-text-secondary);
    margin: 16px 0 0;
    line-height: 1.6;
}

/* ========================================
   分类标签导航
   ======================================== */
.category-tabs-wrapper {
    padding: 16px 32px;
    background: #fafafa;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.category-tabs-wrapper::-webkit-scrollbar {
    display: none;
}

.category-tabs {
    display: flex;
    gap: 12px;
    flex-wrap: nowrap;
}

.category-tab {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--article-text-secondary);
    background: var(--article-bg);
    border: 1px solid var(--article-border);
    border-radius: 50px;
    text-decoration: none;
    transition: var(--article-transition);
    white-space: nowrap;
}

.category-tab:hover {
    color: var(--article-primary);
    border-color: var(--article-primary);
    background: var(--article-primary-light);
    text-decoration: none;
}

.category-tab.active {
    color: #ffffff;
    background: var(--article-primary);
    border-color: var(--article-primary);
}

/* ========================================
   分割线
   ======================================== */
.category-divider {
    height: 1px;
    background: var(--article-border-light);
}

/* ========================================
   文章列表
   ======================================== */
.articles-list {
    padding: 8px 0;
}

/* ========================================
   文章项目
   ======================================== */
.article-item {
    border-bottom: 1px solid var(--article-border-light);
}

.article-item:last-child {
    border-bottom: none;
}

.article-item-link {
    display: flex;
    align-items: stretch;
    padding: 24px 32px;
    text-decoration: none;
    color: inherit;
    transition: var(--article-transition);
    position: relative;
}

.article-item-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--article-primary);
    transition: var(--article-transition);
}

.article-item-link:hover {
    background: #fafafa;
    text-decoration: none;
}

.article-item-link:hover::before {
    width: 4px;
}

/* ========================================
   文章内容区
   ======================================== */
.article-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-right: 24px;
}

.article-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--article-text);
    margin: 0 0 10px;
    line-height: 1.4;
    transition: var(--article-transition);
}

.article-item-link:hover .article-title {
    color: var(--article-primary);
}

/* 文章徽章 */
.article-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    margin-left: 8px;
    vertical-align: middle;
}

.badge-top {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 100%);
    color: #ffffff;
}

/* 文章元信息 */
.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.article-date {
    font-size: 13px;
    color: var(--article-text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-date i {
    font-size: 12px;
}

/* 文章摘要 */
.article-summary {
    font-size: 14px;
    color: var(--article-text-secondary);
    line-height: 1.7;
    margin: 0 0 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 阅读更多按钮 */
.article-read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--article-primary);
    margin-top: auto;
    transition: var(--article-transition);
}

.article-read-more i {
    transition: transform 0.3s ease;
}

.article-item-link:hover .article-read-more {
    color: var(--article-primary-hover);
}

.article-item-link:hover .article-read-more i {
    transform: translateX(4px);
}

/* ========================================
   文章图片 - 1:1 正方形比例
   ======================================== */
.article-image {
    flex: 0 0 120px;
    width: 120px;
    height: 120px;
    border-radius: var(--article-radius-sm);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f5f5;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.article-item-link:hover .article-image img {
    transform: scale(1.05);
}

/* ========================================
   分页样式
   ======================================== */
.articles-pagination {
    padding: 24px 32px;
    border-top: 1px solid var(--article-border-light);
    display: flex;
    justify-content: center;
}

.articles-pagination .pagination {
    margin: 0;
}

.articles-pagination .page-link {
    border-radius: var(--article-radius-sm);
    margin: 0 4px;
    border: 1px solid var(--article-border);
    color: var(--article-text-secondary);
    transition: var(--article-transition);
}

.articles-pagination .page-link:hover {
    background: var(--article-primary-light);
    border-color: var(--article-primary);
    color: var(--article-primary);
}

.articles-pagination .page-item.active .page-link {
    background: var(--article-primary);
    border-color: var(--article-primary);
    color: #ffffff;
}

/* ========================================
   移动端适配
   ======================================== */
@media (max-width: 768px) {
    .article-category-container {
        padding: 0 10px 30px;
    }

    .article-main-card {
        border-radius: var(--article-radius-sm);
    }

    /* 卡片头部 */
    .article-card-header {
        padding: 20px 16px 16px;
    }

    .category-title {
        font-size: 22px;
    }

    .category-summary {
        font-size: 14px;
        margin-top: 12px;
    }

    /* 分类标签 */
    .category-tabs-wrapper {
        padding: 12px 16px;
    }

    .category-tabs {
        gap: 8px;
    }

    .category-tab {
        padding: 6px 14px;
        font-size: 13px;
    }

    /* 移动端文章列表 - 添加间距 */
    .articles-list {
        padding: 16px;
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    /* 移动端文章项 - 独立卡片样式 */
    .article-item {
        border-bottom: none;
        background: #ffffff;
        border-radius: var(--article-radius-sm);
        border: 1px solid var(--article-border);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        overflow: hidden;
    }

    /* 文章项目 - 移动端垂直布局 */
    .article-item-link {
        flex-direction: column;
        padding: 0;
    }

    .article-item-link::before {
        display: none;
    }

    .article-content {
        padding: 16px;
        padding-right: 16px;
    }

    .article-title {
        font-size: 16px;
    }

    .article-summary {
        -webkit-line-clamp: 3;
        line-clamp: 3;
        margin-bottom: 12px;
    }

    /* 移动端图片在上方，1:1正方形全宽显示 */
    .article-image {
        flex: none;
        width: 100%;
        padding-top: 60%;
        /* 改为 60% 比例，更适合移动端 */
        height: 0;
        position: relative;
        border-radius: 0;
    }

    .article-image img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    /* 分页 */
    .articles-pagination {
        padding: 16px;
    }

    .articles-pagination .page-link {
        padding: 8px 12px;
        font-size: 14px;
    }
}

/* ========================================
   超小屏幕适配
   ======================================== */
@media (max-width: 480px) {
    .category-title {
        font-size: 20px;
    }

    /* 超小屏幕保持1:1比例 */
    .article-image {
        padding-top: 100%;
    }

    .article-title {
        font-size: 15px;
    }

    .article-badge {
        font-size: 10px;
        padding: 2px 6px;
    }
}

/* ========================================
   暗色模式支持（可选）
   ======================================== */
@media (prefers-color-scheme: dark) {
    /* 如需支持暗色模式，可在此添加样式 */
}