:root {
            --primary: #1a5da9;
            --primary-light: #2c7ac9;
            --primary-dark: #0d4a8a;
            --secondary: #e6b325;
            --secondary-light: #f7d15f;
            --light: #f8f9fa;
            --dark: #2c3e50;
            --white: #ffffff;
            --gray: #6c757d;
            --gray-light: #e9ecef;
            --success: #28a745;
            --text-dark: #333333;
            --text-light: #666666;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
            background-color: var(--white);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .section {
            padding: 40px 0;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--primary);
            position: relative;
        }
        
        .section-title::after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background: var(--secondary);
            margin: 10px auto 30px;
            border-radius: 2px;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: var(--white);
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            text-align: center;
        }
        
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(26, 93, 169, 0.2);
        }
        
        .btn-secondary {
            background: var(--secondary);
            color: var(--dark);
        }
        
        .btn-secondary:hover {
            background: var(--secondary-light);
        }
        
        
        
        /* 英雄区域 */
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--white);
            padding: 160px 0 80px;
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><path fill="%23ffffff" fill-opacity="0.03" d="M0 0h1200v600H0z"/><path fill="%23ffffff" fill-opacity="0.05" d="M0 300c300 0 300-300 600-300s300 300 600 300v300H0z"/></svg>');
            background-size: cover;
        }
        
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .hero-text h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        
        .hero-text p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.95;
            max-width: 600px;
        }
        
        .hero-buttons {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        
        .hero-image {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            transition: transform 0.5s ease;
            position: relative;
            background-color: #f0f4f8;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 400px;
        }
        
        .hero-image:hover {
            transform: scale(1.03);
        }
        
        .hero-image-placeholder {
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 10px;
            text-align: center;
        }
        
        .hero-image-placeholder i {
            font-size: 4rem;
            color: var(--primary-light);
            margin-bottom: 20px;
        }
        
        .hero-image-placeholder p {
            color: var(--text-light);
            font-size: 1.1rem;
        }
        
        .product-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--secondary);
            color: var(--dark);
            padding: 8px 16px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.9rem;
            z-index: 2;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        /* 产品详情板块 */
        .product-detail-section {
            background-color: var(--white);
            padding: 80px 0;
        }
        
        .product-detail-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .product-detail-title {
            text-align: center;
            color: var(--primary);
            font-size: 2.5rem;
            margin-bottom: 10px;
        }
        
        .product-detail-underline {
            width: 80px;
            height: 4px;
            background-color: var(--secondary);
            margin: 0 auto 40px;
            border-radius: 2px;
        }
        
        .product-detail-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        .product-detail-item {
            background-color: var(--white);
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }
        
        .product-detail-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
        }
        
        .product-detail-image {
            width: 100%;
            height: 250px;
            overflow: hidden;
            background-color: #f5f5f5;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .product-detail-image-placeholder {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px;
            text-align: center;
        }
        
        .product-detail-image-placeholder i {
            font-size: 3rem;
            color: var(--primary-light);
            margin-bottom: 15px;
        }
        
        .product-detail-image-placeholder p {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        
        .product-detail-info {
            padding: 20px;
        }
        
        .product-detail-name {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        
        .product-detail-desc {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 10px;
            line-height: 1.5;
        }
        
        .product-detail-category {
            display: inline-block;
            background-color: rgba(230, 179, 37, 0.1);
            color: var(--secondary);
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        /* 特点区域 */
        .features {
            background: var(--light);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .feature-card {
            background: var(--white);
            padding: 40px 30px;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
            border-color: var(--secondary);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, rgba(26, 93, 169, 0.1) 0%, rgba(230, 179, 37, 0.1) 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 2rem;
            color: var(--primary);
            transition: all 0.3s ease;
        }
        
        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--white);
            transform: scale(1.1);
        }
        
        .feature-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .feature-card p {
            color: var(--text-light);
            line-height: 1.7;
        }
        
        /* 产品详情 */
        .product-details {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            background: var(--white);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
        }
        
        .product-image {
            position: relative;
            border-radius: 15px;
            overflow: hidden;
            background-color: #f5f5f5;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 400px;
        }
        
        .product-image-placeholder {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 40px;
            text-align: center;
        }
        
        .product-image-placeholder i {
            font-size: 5rem;
            color: var(--primary-light);
            margin-bottom: 20px;
        }
        
        .product-image-placeholder p {
            color: var(--text-light);
            font-size: 1.2rem;
        }
        
        .product-info h3 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .product-tagline {
            color: var(--text-light);
            margin-bottom: 25px;
            font-size: 1.1rem;
        }
        
        .price {
            display: flex;
            align-items: center;
            gap: 15px;
            margin: 25px 0;
            flex-wrap: wrap;
        }
        
        .current-price {
            font-size: 2.5rem;
            font-weight: 700;
            color: #e53e3e;
        }
        
        .original-price {
            font-size: 1.8rem;
            color: var(--gray);
            text-decoration: line-through;
        }
        
        .discount-badge {
            background: #fef3c7;
            color: #92400e;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
        }
        
        .benefits-list {
            list-style: none;
            margin: 30px 0;
        }
        
        .benefits-list li {
            padding: 12px 0;
            border-bottom: 1px solid #eee;
            position: relative;
            padding-left: 35px;
            color: var(--text-dark);
            font-size: 1.05rem;
        }
        
        .benefits-list li:before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: bold;
            font-size: 1.2rem;
        }
        
        .product-actions {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        
        /* 科学验证 */
        .science {
            background: linear-gradient(135deg, var(--light) 0%, #f1f5f9 100%);
        }
        
        .timeline {
            max-width: 900px;
            margin: 50px auto 0;
            position: relative;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
        }
        
        .timeline-item {
            display: flex;
            justify-content: center;
            margin-bottom: 50px;
            position: relative;
        }
        
        .timeline-content {
            width: 45%;
            padding: 30px;
            background: var(--white);
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            position: relative;
            transition: all 0.3s ease;
        }
        
        .timeline-content:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        
        .timeline-item:nth-child(odd) .timeline-content {
            margin-right: auto;
        }
        
        .timeline-item:nth-child(even) .timeline-content {
            margin-left: auto;
        }
        
        .timeline-year {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            z-index: 2;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .timeline-item:nth-child(odd) .timeline-year {
            right: -35px;
        }
        
        .timeline-item:nth-child(even) .timeline-year {
            left: -35px;
        }
        
        .timeline-content h4 {
            font-size: 1.4rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        
        /* 使用指南 */
        .steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }
        
        .step {
            text-align: center;
            padding: 35px 25px;
            background: var(--white);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .step:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        
        .step::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }
        
        .step-number {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 auto 25px;
            box-shadow: 0 8px 20px rgba(26, 93, 169, 0.2);
        }
        
        .step h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .step p {
            color: var(--text-light);
            line-height: 1.7;
        }
        
        /* 购买渠道 */
        .channels {
            background: var(--white);
        }
        
        .channel-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .channel-card {
            background: var(--white);
            padding: 40px 30px;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }
        
        .channel-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
            border-color: var(--secondary);
        }
        
        .channel-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, rgba(26, 93, 169, 0.1) 0%, rgba(230, 179, 37, 0.1) 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 2.5rem;
            color: var(--primary);
            transition: all 0.3s ease;
        }
        
        .channel-card:hover .channel-icon {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--white);
            transform: scale(1.1);
        }
        
        .channel-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .channel-card p {
            color: var(--text-light);
            margin-bottom: 25px;
            line-height: 1.7;
        }
        
       
        
        /* 动画效果 */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        
        
        /* 图片占位符通用样式 */
        .img-placeholder {
            width: 100%;
            height: 100%;
            background-color: #f0f4f8;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            text-align: center;
            padding: 20px;
        }
        
        .img-placeholder i {
            font-size: 3rem;
            margin-bottom: 15px;
            color: var(--primary-light);
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .product-detail-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 992px) {
            .hero-content,
            .product-details {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            
            .hero {
                padding: 140px 0 60px;
            }
            
            .hero-text h1 {
                font-size: 2.8rem;
            }
            
            .section-title {
                font-size: 2.2rem;
            }
            
            .desktop-nav {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .dropdown-menu {
                min-width: 400px;
            }
        }
        
        @media (max-width: 768px) {
            .hero-text h1 {
                font-size: 2.3rem;
            }
            
            .timeline::before {
                left: 30px;
            }
            
            .timeline-content {
                width: calc(100% - 80px);
                margin-left: 80px !important;
                margin-right: 0 !important;
            }
            
            .timeline-year {
                left: 0 !important;
                right: auto !important;
            }
            
            .steps {
                grid-template-columns: 1fr;
            }
            
            .product-detail-grid {
                grid-template-columns: 1fr;
            }
            
            .dropdown-menu {
                min-width: 300px;
                flex-direction: column;
            }
        }
        
        @media (max-width: 576px) {
            .section {
                padding: 40px 0;
            }
            
            .hero-text h1 {
                font-size: 2rem;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            
            .btn {
                width: 100%;
                margin-bottom: 10px;
            }
            
            .section-title {
                font-size: 1.8rem;
            }
            
            .product-details {
                padding: 25px;
            }
            
            .product-actions {
                flex-direction: column;
            }
            
            .channel-cards {
                grid-template-columns: 1fr;
            }
            
            .dropdown-menu {
                min-width: 250px;
            }
        }


                /* 公司简介模块样式 */
        .company-intro {
            padding: 60px 0;
            background: linear-gradient(135deg, #f8faff 0%, #e8f1ff 100%);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 20px;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: #1a5da9;
            margin-bottom: 5px;
            font-weight: 600;
        }
        
        .section-title p {
            font-size: 18px;
            color: #1a5da9;
            font-weight: 400;
        }
        
        .section-title::after {
            content: "";
            display: block;
            width: 80px;
            height: 3px;
            background: linear-gradient(to right, #1a5da9, #4a8ee0);
            margin: 0 auto;
            border-radius: 2px;
        }
        
        .intro-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 50px;
        }
        
        .intro-text {
            flex: 0 0 60%;
            padding-right: 40px;
        }
        
        .intro-image {
            flex: 0 0 35%;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 15px 35px rgba(26, 93, 169, 0.15);
            transition: all 0.4s ease;
        }
        
        .intro-image:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(26, 93, 169, 0.25);
        }
        
        .intro-image img {
            width: 100%;
            height: 350px;
            object-fit: cover;
            display: block;
            transition: transform 0.8s ease;
        }
        
        .intro-image:hover img {
            transform: scale(1.05);
        }
        
        .intro-text h3 {
            font-size: 28px;
            color: #1a5da9;
            margin-bottom: 25px;
            font-weight: 600;
            position: relative;
            padding-bottom: 10px;
        }
        
        .intro-text h3::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: #1a5da9;
            border-radius: 2px;
        }
        
        .intro-text p {
            margin-bottom: 20px;
            font-size: 16px;
            color: #444;
            line-height: 1.8;
        }
        
        .intro-text p.highlight {
            background-color: #f0f7ff;
            padding: 15px;
            border-left: 4px solid #1a5da9;
            border-radius: 0 8px 8px 0;
            font-weight: 500;
        }
        
        .values-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 40px;
        }
        
        .value-item {
            text-align: center;
            padding: 30px 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(26, 93, 169, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-top: 4px solid #1a5da9;
        }
        
        .value-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(26, 93, 169, 0.15);
        }
        
        .value-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, #e8f1ff, #d4e5ff);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }
        
        .value-item:hover .value-icon {
            background: linear-gradient(135deg, #1a5da9, #4a8ee0);
            transform: scale(1.1);
        }
        
        .value-icon i {
            font-size: 36px;
            color: #1a5da9;
            transition: all 0.3s ease;
        }
        
        .value-item:hover .value-icon i {
            color: white;
        }
        
        .value-item h4 {
            font-size: 20px;
            color: #1a5da9;
            margin-bottom: 12px;
            font-weight: 600;
        }
        
        .value-item p {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .intro-text {
                flex: 0 0 100%;
                padding-right: 0;
                margin-bottom: 40px;
            }
            
            .intro-image {
                flex: 0 0 100%;
            }
            
            .values-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .company-intro {
                padding: 40px 0;
            }
            
            .section-title h2 {
                font-size: 28px;
            }
            
            .section-title p {
                font-size: 16px;
            }
            
            .intro-text h3 {
                font-size: 24px;
            }
            
            .value-item {
                padding: 25px 15px;
            }
        }
        
        @media (max-width: 576px) {
            .section-title h2 {
                font-size: 24px;
            }
            
            .values-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .value-item {
                padding: 20px 15px;
            }
            
            .value-icon {
                width: 70px;
                height: 70px;
            }
            
            .value-icon i {
                font-size: 30px;
            }
        }


         /* 文章列表模块样式 */
        .articles-section {
            padding: 40px 0;
            background: #fff;
        }
        
        .articles-section .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        
        .articles-section .section-title {
            flex: 1;
        }
        
        .articles-section .section-title h2 {
            font-size: 28px;
            color: #1a5da9;
            margin-bottom: 10px;
            font-weight: 600;
            position: relative;
            display: inline-block;
        }
        
        
        
        .articles-section .section-title p {
            font-size: 16px;
            color: #666;
            margin-top: 15px;
        }
        
        .view-all {
            color: #1a5da9;
            text-decoration: none;
            font-weight: 500;
            font-size: 16px;
            display: flex;
            align-items: center;
            transition: all 0.3s ease;
        }
        
        .view-all:hover {
            color: #0f3d73;
            transform: translateX(5px);
        }
        
        .view-all i {
            margin-left: 5px;
            transition: transform 0.3s ease;
        }
        
        .view-all:hover i {
            transform: translateX(5px);
        }
        
        /* 文章列表布局 - 一行三个 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .article-card {
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .article-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 25px rgba(26, 93, 169, 0.15);
        }
        
        .article-image {
            height: 200px;
            overflow: hidden;
        }
        
        .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .article-card:hover .article-image img {
            transform: scale(1.05);
        }
        
        .article-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            margin-bottom: 12px;
            font-size: 14px;
            color: #666;
        }
        
        .article-category {
            background: #e8f1ff;
            color: #1a5da9;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 500;
            margin-right: 10px;
        }
        
        .article-date {
            display: flex;
            align-items: center;
        }
        
        .article-date i {
            margin-right: 5px;
            color: #999;
        }
        
        .article-title {
            font-size: 18px;
            color: #1a5da9;
            margin-bottom: 12px;
            font-weight: 600;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .article-title a {
            color: #1a5da9;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .article-title a:hover {
            color: #0f3d73;
        }
        
        .article-excerpt {
            color: #666;
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 20px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex-grow: 1;
        }
        
        .read-more {
            display: inline-flex;
            align-items: center;
            color: #1a5da9;
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.3s ease;
            align-self: flex-start;
        }
        
        .read-more i {
            margin-left: 5px;
            transition: transform 0.3s ease;
        }
        
        .read-more:hover {
            color: #0f3d73;
        }
        
        .read-more:hover i {
            transform: translateX(5px);
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 25px;
            }
            
            .article-image {
                height: 180px;
            }
        }
        
        @media (max-width: 768px) {
            .articles-section {
                padding: 40px 0;
            }
            
            .section-header {
                margin-bottom: 30px;
            }
            
            .section-title h2 {
                font-size: 24px;
            }
            
            .view-all {
                margin-top: 10px;
            }
            
            .article-content {
                padding: 20px;
            }
            
            .article-title {
                font-size: 16px;
            }
        }
        
        @media (max-width: 576px) {
            .articles-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .article-image {
                height: 160px;
            }
            
            .article-content {
                padding: 18px;
            }
            
            .article-title {
                font-size: 16px;
            }
            
            .article-excerpt {
                font-size: 13px;
            }
        }