/* ============================================
   JunShi Framework - 公告页面样式
   ============================================ */

.announcement-section {
    padding: 60px 0 100px;
}

/* 重要公告 */
.important-announcements {
    margin-bottom: 48px;
}

.important-announcements .section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.important-announcements .section-title svg {
    width: 24px;
    height: 24px;
    color: var(--warning);
}

/* 公告筛选 */
.announcement-filter {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--border-light);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--gradient-1);
    border-color: transparent;
    color: white;
}

/* 公告卡片 */
.announcement-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.announcement-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.announcement-card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow);
}

.announcement-card.important {
    border-color: var(--warning);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05) 0%, var(--bg-card) 100%);
}

.announcement-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.announcement-tag {
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.announcement-tag.urgent {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.announcement-tag.update {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
}

.announcement-tag.notice {
    background: rgba(6, 182, 212, 0.2);
    color: var(--accent);
}

.announcement-tag.event {
    background: rgba(139, 92, 246, 0.2);
    color: var(--secondary);
}

.announcement-date {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.announcement-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.announcement-summary {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.announcement-link {
    color: var(--primary-light);
    font-weight: 500;
}

.announcement-link:hover {
    color: var(--primary);
}

/* 展开内容 */
.announcement-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.announcement-content.expanded {
    max-height: 1000px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.announcement-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    margin-top: 20px;
}

.announcement-content h4:first-child {
    margin-top: 0;
}

.announcement-content ul {
    list-style: none;
    margin-bottom: 16px;
}

.announcement-content li {
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.announcement-content li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-light);
}

.announcement-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.expand-btn {
    color: var(--primary-light);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
}

.expand-btn:hover {
    color: var(--primary);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.page-btn {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
}

.page-btn:hover:not(:disabled) {
    border-color: var(--border-light);
    background: var(--bg-tertiary);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 订阅区域 */
.subscribe-section {
    margin-top: 60px;
    padding: 48px;
    background: var(--gradient-1);
    border-radius: var(--radius-lg);
    text-align: center;
}

.subscribe-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.subscribe-content p {
    opacity: 0.9;
    margin-bottom: 24px;
}

.subscribe-form {
    display: flex;
    gap: 12px;
    max-width: 480px;
    margin: 0 auto;
}

.subscribe-form input {
    flex: 1;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    color: white;
    font-size: 0.95rem;
}

.subscribe-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.subscribe-form input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
}

.subscribe-form .btn {
    background: white;
    color: var(--primary);
    padding: 14px 28px;
}

.subscribe-form .btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .announcement-filter {
        justify-content: center;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .announcement-card {
        padding: 20px;
    }
    
    .announcement-title {
        font-size: 1.1rem;
    }
    
    .subscribe-section {
        padding: 32px 24px;
    }
    
    .subscribe-form {
        flex-direction: column;
    }
    
    .subscribe-form input,
    .subscribe-form .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .announcement-header {
        flex-wrap: wrap;
    }
    
    .pagination {
        flex-direction: column;
        gap: 12px;
    }
}