/* 栏目页横幅 */
.knowledge-hero {
    height: 350px;
    background: linear-gradient(135deg, rgba(10, 94, 156, 0.85) 0%, rgba(0, 163, 224, 0.85) 100%), url('/template/jia/images/bangongshi.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
    margin-top: 80px;
    text-align: center;
}

.knowledge-hero-content {
    max-width: 800px;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.knowledge-hero-content h1 {
    font-size: 42px;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    font-weight: 800;
    line-height: 1.2;
}

.knowledge-hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 15px 20px;
    border-radius: 50px;
    border: none;
    font-size: 16px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 5px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 10px 25px;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background: var(--accent);
}

.breadcrumb {
    background: var(--light);
    padding: 15px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.breadcrumb-content {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.breadcrumb-content a {
    color: var(--gray);
    transition: var(--transition);
}

.breadcrumb-content a:hover {
    color: var(--primary);
}

.breadcrumb-content span {
    margin: 0 10px;
    color: var(--gray);
}

.breadcrumb-content .current {
    color: var(--primary);
    font-weight: 600;
}

/* 知识库内容区域 */
.knowledge-content {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.articles-main {
    flex: 2;
}

.knowledge-sidebar {
    flex: 1;
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.filter-options {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-option {
    padding: 8px 20px;
    background: var(--light);
    border-radius: 50px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-option:hover, .filter-option.active {
    background: var(--primary);
    color: white;
}

.sort-options select {
    padding: 8px 15px;
    border-radius: 4px;
    border: 1px solid var(--light-gray);
    font-size: 14px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.article-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.article-img {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.article-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.article-badge {
    position: absolute;
    top: 20px;
    left: 0;
    background: var(--accent);
    color: white;
    padding: 8px 15px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 0 4px 4px 0;
}

.article-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.article-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark);
    font-weight: 700;
    line-height: 1.4;
}

.article-content .meta {
    display: flex;
    color: var(--gray);
    font-size: 14px;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 15px;
}

.article-content .meta span {
    display: flex;
    align-items: center;
}

.article-content .meta i {
    margin-right: 5px;
}

.article-content p {
    color: var(--gray);
    margin-bottom: 25px;
    line-height: 1.7;
    flex-grow: 1;
}

.article-content .btn {
    align-self: flex-start;
    margin-top: auto;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 60px;
    gap: 10px;
}

.page-num {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: white;
    color: var(--dark);
    font-weight: 600;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.page-num:hover, .page-num.active {
    background: var(--primary);
    color: white;
}

.page-num.dots {
    background: transparent;
    box-shadow: none;
}

/* 侧边栏组件 */
.sidebar-widget {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.sidebar-widget h3 {
    font-size: 22px;
    color: var(--dark);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--accent);
}

.categories-list {
    list-style: none;
}

.category-item {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--light-gray);
}

.category-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.category-item a {
    display: flex;
    justify-content: space-between;
    color: var(--gray);
    transition: var(--transition);
}

.category-item a:hover {
    color: var(--primary);
}

.category-item span {
    background: var(--light);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
}

.popular-articles {
    list-style: none;
}

.popular-article {
    display: flex;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--light-gray);
}

.popular-article:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.popular-article-img {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
    margin-right: 15px;
    flex-shrink: 0;
}

.popular-article-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.popular-article:hover .popular-article-img img {
    transform: scale(1.1);
}

.popular-article-content h4 {
    font-size: 16px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.popular-article-content .article-meta-small {
    font-size: 13px;
    color: var(--gray);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 8px 15px;
    background: var(--light);
    border-radius: 50px;
    font-size: 14px;
    color: var(--gray);
    transition: var(--transition);
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .knowledge-content {
        flex-direction: column;
    }
    
    .knowledge-hero-content h1 {
        font-size: 36px;
    }
    
    .articles-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .knowledge-hero {
        height: 300px;
        margin-top: 70px;
    }
    
    .knowledge-hero-content h1 {
        font-size: 32px;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .knowledge-hero-content h1 {
        font-size: 28px;
    }
    
    .article-content h3 {
        font-size: 20px;
    }
    
    .pagination-item {
        width: 40px;
        height: 40px;
    }
}