/* ========================================
   页面特定样式 (pages.css)
   包含：首页、投稿页、归档页、管理页、文章详情页
   ======================================== */

/* 首页样式 */
.home-container {
    padding: 2rem 0;
}

.hero-section {
    text-align: center;
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, #ff7875 100%);
    color: #fff;
    border-radius: var(--border-radius);
    margin-bottom: 3rem;
}

.hero-section h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* 投稿页样式 */
.drop-zone {
    border: 2px dashed #ddd;
    border-radius: var(--border-radius);
    padding: 3rem;
    text-align: center;
    transition: border-color 0.3s, background-color 0.3s;
}

.drop-zone:hover {
    border-color: var(--primary);
    background-color: rgba(255, 77, 79, 0.05);
}

.drop-zone.drag-over {
    border-color: var(--primary);
    background-color: rgba(255, 77, 79, 0.1);
}

/* 归档页样式 */
.archive-item {
    padding: 1.5rem;
    border-bottom: 1px solid #eee;
    transition: background-color 0.3s;
}

.archive-item:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

.archive-item h3 {
    margin-bottom: 0.5rem;
}

.archive-item .meta {
    font-size: 0.9rem;
    color: #666;
}

.highlight {
    background-color: #fffbe6;
    padding: 0.2rem 0.4rem;
    border-radius: 2px;
}

/* 管理页样式 */
.admin-container {
    display: flex;
    gap: 2rem;
    min-height: calc(100vh - 200px);
}

.admin-sidebar {
    width: 250px;
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.admin-main {
    flex: 1;
}

/* 看板布局 */
.kanban-board {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    padding: 1rem 0;
}

.column {
    min-width: 300px;
    background: var(--secondary);
    border-radius: var(--border-radius);
    padding: 1rem;
}

.column-header {
    font-weight: bold;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--primary);
}

.task-card {
    background: var(--background-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 0.75rem;
    cursor: grab;
    transition: transform 0.2s, box-shadow 0.2s;
}

.task-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.task-card.dragging {
    opacity: 0.5;
}

/* 文章详情页样式 */
.article-header {
    margin-bottom: 2rem;
}

.article-header h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.article-meta {
    color: #666;
    font-size: 0.9rem;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.article-content {
    line-height: 1.8;
    font-size: 1.1rem;
}

.article-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #eee;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content pre {
    background: #f5f5f5;
    padding: 1rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.article-content img {
    max-width: 100%;
    border-radius: var(--border-radius);
}

/* 标签样式 */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #f0f0f0;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    transition: background-color 0.3s;
}

.tag:hover {
    background: var(--primary);
    color: #fff;
}

.article-page {
    padding: 2rem 0;
}

.back-link {
    margin-bottom: 1.5rem;
}

.back-link a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.back-link a:hover {
    color: #e04042;
}

.back-link i {
    margin-right: 0.5rem;
}

.article-detail-card {
    position: relative;
}

.article-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    color: #666;
}

.article-loading i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.article-loading p {
    font-size: 1rem;
}

.article-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
}

.article-error i {
    font-size: 3rem;
    color: #ccc;
    margin-bottom: 1rem;
}

.article-error h3 {
    color: #333;
    margin-bottom: 0.5rem;
}

.article-error p {
    color: #666;
    margin-bottom: 1.5rem;
}

.article-body {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.article-meta i {
    color: var(--primary);
}

.article-meta .doi-info a {
    color: var(--primary);
    text-decoration: none;
    cursor: pointer;
}

.article-meta .doi-info a:hover {
    text-decoration: underline;
}

.article-meta .doi-info a.copied {
    color: #52c41a;
}

.article-abstract,
.article-keywords,
.article-pdf,
.article-citation {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}

.article-abstract h2,
.article-keywords h2,
.article-pdf h2,
.article-citation h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #333;
}

.article-abstract p {
    line-height: 1.8;
    color: #555;
}

.keywords-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.no-keywords {
    color: #999;
    font-style: italic;
}

.citation-box {
    background: #f8f8f8;
    border-radius: var(--border-radius);
    padding: 1rem;
    position: relative;
}

.citation-box pre {
    margin: 0;
    padding: 0;
    background: transparent;
    font-size: 0.9rem;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.copy-citation-btn {
    margin-top: 1rem;
}

.copy-citation-btn.copied {
    background: #52c41a;
    color: #fff;
}

.copy-citation-btn.copied:hover {
    background: #73d13d;
    color: #fff;
}

/* 响应式页面布局 */
@media screen and (max-width: 768px) {
    .hero-section h1 {
        font-size: 1.8rem;
    }
    
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
    }
    
    .kanban-board {
        flex-direction: column;
    }
    
    .column {
        min-width: 100%;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .article-header h1 {
        font-size: 1.5rem;
    }
}