/* 文章头部样式 */
        .article-header {
            margin-top: 120px;
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(26, 107, 196, 0.05) 0%, rgba(76, 175, 80, 0.05) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .article-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.8)"/></svg>');
            background-size: cover;
            z-index: 0;
        }
        
        .article-header-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }
        
        .article-header h1 {
            font-size: 3.2rem;
            color: var(--dark-color);
            margin-bottom: 25px;
            font-weight: 800;
            line-height: 1.2;
        }
        
        .article-header p {
            font-size: 1.3rem;
            color: #666;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        
        .article-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            color: #666;
            font-size: 1rem;
        }
        
        .meta-item i {
            margin-right: 8px;
            color: var(--primary-color);
        }
        
        .article-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
        }
        
        .tag {
            background: rgba(26, 107, 196, 0.1);
            color: var(--primary-color);
            padding: 6px 15px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: var(--transition-fast);
        }
        
        .tag:hover {
            background: var(--primary-color);
            color: white;
        }
        
      /* 文章内容样式优化 */
.article-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 20px;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
}

/* 标题样式优化 */
.article-content h2 {
    font-size: 2.2rem;
    color: var(--dark-color);
    margin: 60px 0 25px 0;
    padding-bottom: 15px;
    position: relative;
    font-weight: 700;
    line-height: 1.3;
    border-bottom: 2px solid var(--light-gray);
}

.article-content h2::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.article-content h3 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin: 45px 0 20px 0;
    padding-left: 15px;
    position: relative;
    font-weight: 600;
    line-height: 1.4;
    border-left: 4px solid var(--primary-color);
}

.article-content h4 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin: 35px 0 15px 0;
    font-weight: 600;
    line-height: 1.4;
    position: relative;
    padding-left: 10px;
}

.article-content h4::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-size: 1.6rem;
    line-height: 1;
}

/* 段落样式优化 */
.article-content p {
    margin-bottom: 25px;
    line-height: 1.8;
    font-size: 1.1rem;
    color: #555;
    text-align: justify;
}

.article-content p:first-of-type {
    font-size: 1.15rem;
    color: #666;
    line-height: 1.9;
}

/* 图片自适应优化 */
.article-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 30px auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.article-content img:hover {
    transform: scale(1.02);
    box-shadow: var(--box-shadow-lg);
}

/* 图片容器样式 */
.article-image {
    margin: 40px 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    position: relative;
}

.article-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: var(--transition);
    margin: 0;
}

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

.article-image-caption {
    text-align: center;
    padding: 15px;
    background: #f8f9fa;
    font-style: italic;
    color: #666;
    border-top: 1px solid #e9ecef;
    font-size: 0.95rem;
}

/* 响应式图片调整 */
@media (max-width: 768px) {
    .article-content h2 {
        font-size: 1.8rem;
        margin: 50px 0 20px 0;
    }
    
    .article-content h3 {
        font-size: 1.5rem;
        margin: 40px 0 18px 0;
    }
    
    .article-content h4 {
        font-size: 1.2rem;
        margin: 30px 0 15px 0;
    }
    
    .article-content p {
        font-size: 1.05rem;
        line-height: 1.7;
    }
    
    .article-content img {
        margin: 25px auto;
    }
}

@media (max-width: 576px) {
    .article-content {
        padding: 40px 15px;
    }
    
    .article-content h2 {
        font-size: 1.6rem;
        margin: 40px 0 18px 0;
    }
    
    .article-content h3 {
        font-size: 1.3rem;
        margin: 35px 0 16px 0;
    }
    
    .article-content h4 {
        font-size: 1.1rem;
        margin: 25px 0 12px 0;
    }
    
    .article-content p {
        font-size: 1rem;
        line-height: 1.6;
    }
}
        .highlight-box {
            background: linear-gradient(135deg, rgba(26, 107, 196, 0.05) 0%, rgba(76, 175, 80, 0.05) 100%);
            border-left: 5px solid var(--primary-color);
            padding: 30px;
            margin: 40px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            box-shadow: var(--box-shadow);
        }
        
        .highlight-box h3 {
            font-size: 1.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 700;
        }
        
        /* 上一篇/下一篇导航 */
        .article-navigation {
            display: flex;
            justify-content: space-between;
            margin-top: 80px;
            padding-top: 40px;
            border-top: 1px solid #e9ecef;
        }
        
        .nav-item {
            display: flex;
            align-items: center;
            max-width: 45%;
            padding: 20px;
            border-radius: var(--border-radius);
            transition: var(--transition);
            box-shadow: var(--box-shadow);
            background: white;
        }
        
        .nav-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--box-shadow-lg);
        }
        
        .nav-prev {
            text-align: left;
        }
        
        .nav-next {
            text-align: right;
            flex-direction: row-reverse;
        }
        
        .nav-icon {
            font-size: 2rem;
            color: var(--primary-color);
            margin: 0 20px;
        }
        
        .nav-content h4 {
            font-size: 1rem;
            color: #666;
            margin-bottom: 8px;
            font-weight: 600;
        }
        
        .nav-content h3 {
            font-size: 1.2rem;
            color: var(--dark-color);
            font-weight: 700;
            line-height: 1.4;
        }
        
        /* 优势展示样式 */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 35px;
            margin-top: 50px;
        }
        
        .advantage-item {
            text-align: center;
            padding: 40px 25px;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .advantage-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            opacity: 0;
            transition: var(--transition);
            z-index: 0;
        }
        
        .advantage-item:hover {
            transform: translateY(-10px);
            box-shadow: var(--box-shadow-lg);
            color: white;
        }
        
        .advantage-item:hover::before {
            opacity: 1;
        }
        
        .advantage-item:hover .advantage-icon,
        .advantage-item:hover h3,
        .advantage-item:hover p {
            color: white;
            position: relative;
            z-index: 1;
        }
        
        .advantage-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }
        
        .advantage-item h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--dark-color);
            font-weight: 700;
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }
        
        .advantage-item p {
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }
        
        /* 服务流程板块 */
        .process {
            background: white;
            position: relative;
            overflow: hidden;
        }
        
        .process::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(248,249,250,0.5)"/></svg>');
            background-size: cover;
            z-index: 0;
        }
        
        .process-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 60px;
            z-index: 1;
        }
        
        .process-steps::before {
            content: '';
            position: absolute;
            top: 70px;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            z-index: 1;
            animation: flow 3s infinite linear;
        }
        
        @keyframes flow {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }
        
        .step {
            text-align: center;
            position: relative;
            z-index: 2;
            background: white;
            padding: 30px 20px;
            width: 220px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            animation: stepFloat 6s infinite ease-in-out;
        }
        
        /* 为每个步骤设置不同的动画延迟 */
        .step:nth-child(1) {
            animation-delay: 0s;
        }
        .step:nth-child(2) {
            animation-delay: 1s;
        }
        .step:nth-child(3) {
            animation-delay: 2s;
        }
        .step:nth-child(4) {
            animation-delay: 3s;
        }
        
        @keyframes stepFloat {
            0% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
            100% {
                transform: translateY(0);
            }
        }
        
        .step:hover {
            transform: translateY(-10px);
            box-shadow: var(--box-shadow-lg);
            animation: none;
        }
        
        .step-number {
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            font-weight: 800;
            margin: 0 auto 25px;
            transition: var(--transition);
            position: relative;
            box-shadow: 0 5px 15px rgba(26, 107, 196, 0.3);
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% {
                box-shadow: 0 5px 15px rgba(26, 107, 196, 0.3);
                transform: scale(1);
            }
            50% {
                box-shadow: 0 5px 25px rgba(26, 107, 196, 0.5);
                transform: scale(1.05);
            }
            100% {
                box-shadow: 0 5px 15px rgba(26, 107, 196, 0.3);
                transform: scale(1);
            }
        }
        
        .step:hover .step-number {
            background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
            animation: none;
            transform: scale(1.1) rotate(5deg);
        }
        
        .step h4 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark-color);
            font-weight: 700;
        }
        
        .step p {
            color: #666;
            line-height: 1.6;
        }
        
        /* 企业服务板块 */
        .services {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
        }
        
        .service-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            text-align: center;
            padding: 40px 30px;
            position: relative;
            z-index: 1;
        }
        
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        
        .service-card:hover {
            transform: translateY(-15px);
            box-shadow: var(--box-shadow-lg);
        }
        
        .service-card:hover::before {
            transform: scaleX(1);
        }
        
        .service-icon {
            font-size: 3.5rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            transition: var(--transition);
        }
        
        .service-card:hover .service-icon {
            transform: scale(1.1) rotate(5deg);
            color: var(--primary-light);
        }
        
        .service-card h3 {
            font-size: 1.7rem;
            margin-bottom: 20px;
            color: var(--dark-color);
            font-weight: 700;
        }
        
        .service-card p {
            margin-bottom: 25px;
            color: #666;
            line-height: 1.6;
        }
        
        .service-features {
            text-align: left;
            margin-bottom: 30px;
        }
        
        .service-features li {
            padding: 8px 0;
            position: relative;
            padding-left: 25px;
        }
        
        .service-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary-color);
            font-weight: bold;
        }
        
        .price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-color);
            margin: 20px 0;
            display: flex;
            align-items: baseline;
            justify-content: center;
        }
        
        .price span {
            font-size: 1.1rem;
            color: #666;
            font-weight: normal;
            margin-left: 5px;
        }
        
        /* 相关文章板块 */
        .related-articles {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
        }
        
        .article-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
        }
        
        .article-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--box-shadow-lg);
        }
        
        .article-img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        
        .article-img::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.1) 100%);
            z-index: 1;
        }
        
        .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .article-card:hover .article-img img {
            transform: scale(1.1);
        }
        
        .article-content {
            padding: 25px;
        }
        
        .article-content h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark-color);
            font-weight: 700;
            line-height: 1.4;
        }
        
        .article-meta {
            display: flex;
            justify-content: space-between;
            color: #888;
            font-size: 0.9rem;
            margin-bottom: 15px;
            border-bottom: 1px solid #eee;
            padding-bottom: 15px;
        }
        
        .article-excerpt {
            color: #666;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
   
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .process-steps {
                flex-wrap: wrap;
                justify-content: center;
                gap: 30px;
            }
            
            .step {
                width: calc(50% - 30px);
            }
            
            .process-steps::before {
                display: none;
            }
        }
        
        @media (max-width: 992px) {
            .article-header h1 {
                font-size: 2.6rem;
            }
            
            .section-title h2 {
                font-size: 2.4rem;
            }
            
            .nav-phone {
                display: none;
            }
        }
        
        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: white;
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                padding: 100px 30px 30px;
                transition: var(--transition);
                box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
                z-index: 999;
            }
            
            .nav-menu.active {
                right: 0;
            }
            
            .nav-menu li {
                margin: 15px 0;
                width: 100%;
            }
            
            .nav-menu a {
                display: block;
                padding: 12px 0;
                font-size: 1.1rem;
                border-bottom: 1px solid #f0f0f0;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .article-header {
                margin-top: 80px;
                padding: 60px 0;
            }
            
            .article-header h1 {
                font-size: 2.2rem;
            }
            
            .article-header p {
                font-size: 1.1rem;
            }
            
            .section {
                padding: 80px 0;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .services-grid,
            .articles-grid {
                grid-template-columns: 1fr;
            }
            
            .step {
                width: 100%;
                max-width: 350px;
            }
            
            .article-navigation {
                flex-direction: column;
                gap: 20px;
            }
            
            .nav-item {
                max-width: 100%;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }
        
        @media (max-width: 576px) {
            .article-header h1 {
                font-size: 1.8rem;
            }
            
            .article-meta {
                flex-direction: column;
                gap: 15px;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            
            .nav-item {
                padding: 15px;
            }
            
            .nav-icon {
                font-size: 1.5rem;
                margin: 0 15px;
            }
            
            .nav-content h3 {
                font-size: 1.1rem;
            }
        }
        
        /* 滚动动画 */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .delay-1 {
            transition-delay: 0.1s;
        }
        
        .delay-2 {
            transition-delay: 0.2s;
        }
        
        .delay-3 {
            transition-delay: 0.3s;
        }
        
        .delay-4 {
            transition-delay: 0.4s;
        }
        
        .delay-5 {
            transition-delay: 0.5s;
        }
        
        .delay-6 {
            transition-delay: 0.6s;
        }