/* ===== 独享CSS部分 - 知识库页面 ===== */
        /* 页面横幅 */
        .page-banner {
            height: 50vh;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
            display: flex;
            align-items: center;
            margin-top: 80px;
        }

        .banner-content {
            max-width: 800px;
            padding: 40px;
            position: relative;
            z-index: 2;
        }

        .banner-content h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            animation: slideInLeft 1.2s ease;
        }

        .banner-content p {
            font-size: 1.3rem;
            margin-bottom: 30px;
            color: rgba(255, 255, 255, 0.9);
            animation: slideInLeft 1.2s ease 0.3s both;
        }

        @keyframes slideInLeft {
            from {
                opacity: 0;
                transform: translateX(-80px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        /* 知识库内容区域 */
        .knowledge-section {
            background: white;
            position: relative;
            overflow: hidden;
        }

        .section-title {
            text-align: center;
            margin-bottom: 80px;
        }

        .section-title h2 {
            color: var(--primary-color);
            display: inline-block;
        }

        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
            margin-bottom: 60px;
        }

        .article-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            border: 1px solid rgba(0, 0, 0, 0.05);
        }

        .article-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
        }

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

        .article-image::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.5) 100%);
            opacity: 0;
            transition: var(--transition);
        }

        .article-card:hover .article-image::after {
            opacity: 1;
        }

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

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

        .article-content {
            padding: 30px;
            position: relative;
        }

        .article-content h3 {
            margin-bottom: 15px;
            transition: var(--transition);
            font-size: 1.6rem;
        }

        /* H3标签内的链接去掉下划线 */
        .article-content h3 a {
            text-decoration: none;
            color: var(--primary-color);
            transition: var(--transition);
        }

        .article-content h3 a:hover {
            color: var(--secondary-color);
        }

        .article-card:hover .article-content h3 a {
            color: var(--secondary-color);
        }

        .article-excerpt {
            margin-bottom: 20px;
            color: var(--text-color);
            font-size: 1rem;
            line-height: 1.6;
        }

        .article-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            color: #777;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }

        .read-more {
            color: var(--secondary-color);
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
        }

        .read-more:hover {
            color: var(--primary-color);
            transform: translateX(5px);
        }

        .read-more i {
            margin-left: 5px;
            transition: var(--transition);
        }

        .read-more:hover i {
            transform: translateX(3px);
        }

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

        .page-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: white;
            color: var(--text-color);
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }

        .page-num:hover {
            background: var(--secondary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 107, 107, 0.3);
        }

        .page-num-current {
            background: var(--secondary-color);
            color: white;
            transform: scale(1.1);
        }

        .page-num-current:hover {
            transform: scale(1.1) translateY(-3px);
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            h1 {
                font-size: 3rem;
            }
            
            h2 {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .knowledge-grid {
                grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .navbar {
                padding: 15px 0;
            }
            
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: white;
                flex-direction: column;
                align-items: center;
                padding-top: 60px;
                transition: var(--transition);
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            }
            
            .nav-links.active {
                left: 0;
            }
            
            .nav-links li {
                margin: 20px 0;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            h1 {
                font-size: 2.5rem;
            }
            
            h2 {
                font-size: 2rem;
            }
            
            section {
                padding: 80px 0;
            }
            
            .page-banner {
                height: 40vh;
            }
            
            .banner-content h1 {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .knowledge-grid {
                grid-template-columns: 1fr;
            }
            
            .article-card {
                padding: 0;
            }
            
            .banner-content {
                padding: 20px;
            }
            
            .banner-content h1 {
                font-size: 2rem;
            }
            
            .pagination {
                flex-wrap: wrap;
                gap: 8px;
            }
            
            .page-num {
                width: 40px;
                height: 40px;
                font-size: 0.9rem;
            }
        }