/* 信息列表页面样式 */

/* 页面标题 */
.page-header {
    text-align: center;
    padding: 3rem 0 2rem;
    color: #000;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 搜索区域 */
.search-section {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
}

.search-bar {
    margin-bottom: 1.5rem;
}

.search-input-group {
    display: flex;
    align-items: center;
    background: #f8f9fa;
    border-radius: 30px;
    padding: 0.5rem 1rem;
    border: 2px solid #e9ecef;
    transition: border-color 0.3s ease;
}

.search-input-group:focus-within {
    border-color: #3498db;
}

.search-input-group i {
    color: #7f8c8d;
    margin-right: 1rem;
}

.search-input-group input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.5rem;
    font-size: 1rem;
    outline: none;
}

.btn-search {
    background: #3498db;
    color: white;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 1rem;
}

.btn-search:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

/* 筛选栏 */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 600;
    color: #2c3e50;
}

.filter-group select {
    padding: 0.5rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    background: white;
    font-size: 0.9rem;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.filter-group select:focus {
    outline: none;
    border-color: #3498db;
}

.view-toggle {
    margin-left: auto;
    display: flex;
    gap: 0.5rem;
}

.view-btn {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #7f8c8d;
}

.view-btn.active,
.view-btn:hover {
    background: #3498db;
    border-color: #3498db;
    color: white;
}

/* 信息列表 */
.info-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.info-list.list-view {
    grid-template-columns: 1fr;
}

.info-list.list-view .info-card {
    display: flex;
    align-items: center;
}

.info-list.list-view .card-image {
    width: 200px;
    height: 150px;
    flex-shrink: 0;
}

.info-list.list-view .card-content {
    flex: 1;
    padding-left: 1.5rem;
}

/* 信息卡片 */
.info-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
}

.card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.info-card:hover .card-image img {
    transform: scale(1.05);
}

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: #3498db;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.card-badge.hot {
    background: #e74c3c;
}

.card-badge.new {
    background: #27ae60;
}

.card-content {
    padding: 1.5rem;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.category {
    background: #ecf0f1;
    color: #2c3e50;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.date {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.card-title {
    margin-bottom: 1rem;
}

.card-title a {
    color: #2c3e50;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.card-title a:hover {
    color: #3498db;
}

.card-description {
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    background: #f8f9fa;
    color: #495057;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    border: 1px solid #e9ecef;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid #e9ecef;
}

.publisher-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.publisher-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.publisher-name {
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.9rem;
}

.card-stats {
    display: flex;
    gap: 1rem;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.card-stats span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
}


/* 响应式设计 */
@media (max-width: 768px) {
    .page-header {
        padding: 2rem 0 1.5rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .search-section {
        padding: 1.5rem;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .view-toggle {
        margin-left: 0;
        justify-content: center;
    }
    
    .info-list {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .info-list.list-view .info-card {
        flex-direction: column;
    }
    
    .info-list.list-view .card-image {
        width: 100%;
        height: 200px;
    }
    
    .info-list.list-view .card-content {
        padding-left: 1.5rem;
    }
    
    .card-footer {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .search-input-group {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn-search {
        margin-left: 0;
        width: 100%;
    }
    
    .card-content {
        padding: 1rem;
    }
    
    .card-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* 加载动画 */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

.loading::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: #7f8c8d;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 1rem;
}