/* 新闻列表 - 移动优先 */
.news-feed {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    width: 100%;
}

@media (min-width: 768px) {
    .news-feed {
        gap: var(--spacing-6);
    }
}

.news-group {
    background: var(--surface-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    width: 100%;
}

@media (min-width: 768px) {
    .news-group {
        border-radius: var(--radius-lg);
    }
}

.news-group-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
    gap: var(--spacing-2);
}

@media (min-width: 768px) {
    .news-group-header {
        padding: var(--spacing-4) var(--spacing-5);
    }
}

.date-info {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-2);
}

.date-info .month {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.date-info .day {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.news-count {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.news-list {
    display: flex;
    flex-direction: column;
}

.news-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.2s ease;
    width: 100%;
    box-sizing: border-box;
}

@media (min-width: 768px) {
    .news-card {
        flex-direction: row;
        gap: var(--spacing-4);
        padding: var(--spacing-6);
    }
    
    .news-card:hover {
        background: var(--background-color);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }
}

.news-card:last-child {
    border-bottom: none;
}

.news-time {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    min-width: auto;
    order: -1;
}

@media (min-width: 768px) {
    .news-time {
        font-size: 0.875rem;
        min-width: 48px;
        order: 0;
    }
}

.news-content {
    flex: 1;
    min-width: 0;
}

.news-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    line-height: 1.4;
}

@media (min-width: 768px) {
    .news-title {
        font-size: 1.25rem;
        margin-bottom: var(--spacing-3);
    }
}

.news-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.news-title a:hover {
    color: var(--primary-color);
}

.news-body {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    margin: var(--spacing-4) 0;
}

.news-body p {
    margin-bottom: var(--spacing-4);
}

.news-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-4) 0;
}

.news-body iframe {
    max-width: 100%;
    margin: var(--spacing-4) 0;
    border-radius: var(--radius-md);
}

.news-body figure {
    margin: var(--spacing-4) 0;
}

.news-body figure img {
    margin: 0;
}

.news-body figcaption {
    font-size: 14px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: var(--spacing-2);
}

.news-body blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: var(--spacing-4);
    margin: var(--spacing-4) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.news-body ul,
.news-body ol {
    margin: var(--spacing-4) 0;
    padding-left: var(--spacing-6);
}

.news-body li {
    margin-bottom: var(--spacing-2);
}

.news-body pre {
    background: var(--background-color);
    padding: var(--spacing-4);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-4) 0;
}

.news-body code {
    font-family: monospace;
    background: var(--background-color);
    padding: 2px 4px;
    border-radius: 4px;
}

.news-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-3);
}

.news-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.more-tags {
    font-size: 12px;
    color: var(--text-tertiary);
    background: var(--background-color);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.news-actions {
    display: flex;
    gap: 10px;
}

.ai-news-action-btn {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    padding: 6px 12px !important;
    border: none !important;
    background: transparent !important;
    border-radius: var(--radius-sm) !important;
    color: var(--text-secondary) !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    font-size: 13px !important;
    line-height: 1 !important;
    min-height: unset !important;
    min-width: unset !important;
    box-shadow: none !important;
    text-transform: none !important;
}

.ai-news-action-btn:hover {
    color: var(--primary-color) !important;
    background: rgba(37, 99, 235, 0.05) !important;
    border: none !important;
    box-shadow: none !important;
}

.ai-news-action-btn .count {
    font-size: 13px !important;
    color: inherit !important;
    line-height: 1 !important;
}

.ai-news-like-btn.active {
    color: var(--primary-color) !important;
    background: transparent !important;
    border: none !important;
}

.ai-news-dislike-btn.active {
    color: var(--danger-color) !important;
    background: transparent !important;
    border: none !important;
}

.ai-news-action-btn svg {
    stroke: currentColor !important;
    fill: none !important;
}

/* 分页样式 */
.pagination {
    margin-top: var(--spacing-6);
    display: flex;
    justify-content: center;
}

.pagination .page-numbers {
    display: flex;
    list-style: none;
    padding: 0;
    gap: var(--spacing-2);
    background: transparent;
}

.pagination .page-numbers li {
    display: inline-block;
    background: var(--surface-color);
    border-radius: var(--radius-sm);
}

.pagination .page-numbers a,
.pagination .page-numbers span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s ease;
}

.pagination .page-numbers a:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.pagination .page-numbers .current {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: var(--spacing-6);
    color: var(--text-tertiary);
}

.empty-icon {
    margin-bottom: var(--spacing-4);
}

.empty-state h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.empty-state p {
    font-size: 0.875rem;
}

/* 响应式设计 - 移动优先，逐步增强 */

/* 小屏幕手机 (≥375px) */
@media (min-width: 375px) {
    .app-container {
        padding: var(--spacing-4);
    }
    
    .calendar-day {
        min-height: 52px;
        padding: 6px 3px;
    }
    
    .weekday {
        font-size: 12px;
    }
}

/* 大屏幕手机/小平板 (≥480px) */
@media (min-width: 480px) {
    .calendar-day {
        min-height: 56px;
        padding: 6px 4px;
    }
    
    .day-number {
        font-size: 13px;
    }
    
    .day-count {
        font-size: 10px;
    }
}

/* 平板 (≥768px) */
@media (min-width: 768px) {
    .app-container {
        flex-direction: row;
        gap: var(--spacing-5);
        padding: var(--spacing-5);
        max-width: 1200px;
    }
    
    .app-sidebar {
        width: 280px;
        flex-shrink: 0;
        order: 1;
    }
    
    .app-main {
        order: 2;
        flex: 1;
    }
    
    .sidebar-section {
        max-height: calc(100vh - 40px);
        overflow: hidden;
    }
    
    .sidebar-section.fixed {
        position: fixed;
        top: 20px;
        width: 280px;
        z-index: 100;
        max-height: calc(100vh - 40px);
        overflow-y: auto;
        left: auto;
        right: auto;
    }
    
    /* 确保固定定位不会覆盖主内容 */
    .app-sidebar {
        position: relative;
    }
    
    /* 当侧边栏固定时，主内容区域不需要调整 */
    .app-main {
        position: relative;
        z-index: 1;
    }
    
    .calendar-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    
    .calendar-title {
        flex-direction: row;
        flex: 1;
    }
    
    .calendar-select-wrapper {
        width: auto;
        flex: 1;
    }
    
    .calendar-year-select,
    .calendar-month-select {
        width: 100%;
    }
    
    .calendar-view-switch {
        width: auto;
    }
    
    .calendar-day {
        min-height: 52px;
        padding: 6px 3px;
    }
    
    .calendar-weekdays {
        gap: 2px;
    }
    
    .calendar-days {
        gap: 2px;
    }
    
    .weekday {
        font-size: 12px;
        padding: 4px 2px;
    }
}

/* 桌面 (≥1024px) */
@media (min-width: 1024px) {
    .app-container {
        padding: var(--spacing-6);
        gap: var(--spacing-6);
        max-width: 1440px;
    }
    
    .app-sidebar {
        width: 300px;
    }
    
    .sidebar-section.fixed {
        width: 300px !important;
        left: auto !important;
        right: auto !important;
    }
    
    .calendar-container {
        padding: var(--spacing-2);
    }
    
    .calendar-weekdays {
        gap: 1px;
    }
    
    .calendar-days {
        gap: 1px;
    }
    
    .calendar-day {
        min-height: 50px;
        padding: 5px 2px;
    }
    
    .weekday {
        font-size: 10px;
        padding: 3px 1px;
    }
}

/* 大桌面 (≥1280px) */
@media (min-width: 1280px) {
    .calendar-day {
        min-height: 65px;
    }
}

/* 页面标题 - 移动优先 */
.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

@media (min-width: 768px) {
    .page-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-6);
    }
}

/* 日期筛选条 - 移动优先 */
.date-filter-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--surface-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-3);
    border: 1px solid var(--border-color);
}

@media (min-width: 480px) {
    .date-filter-bar {
        gap: var(--spacing-3);
        padding: var(--spacing-3) var(--spacing-4);
        margin-bottom: var(--spacing-4);
    }
}

.filter-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.filter-value {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
}

.clear-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.2s ease;
    margin-left: auto;
}

.clear-filter-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}