/* 404错误内容样式 */
        .error-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 150px 0 80px;
            position: relative;
            overflow: hidden;
        }
        
        .error-animation {
            position: relative;
            margin-bottom: 40px;
        }
        
        .error-number {
            font-size: 15rem;
            font-weight: 900;
            color: #1a3a6c;
            line-height: 1;
            text-shadow: 5px 5px 0 rgba(74, 140, 255, 0.1);
            position: relative;
            animation: float 3s ease-in-out infinite;
        }
        
        .error-number span {
            display: inline-block;
        }
        
        .error-number span:nth-child(1) {
            animation: bounce 1s ease infinite alternate;
            animation-delay: 0.1s;
        }
        
        .error-number span:nth-child(2) {
            animation: bounce 1s ease infinite alternate;
            animation-delay: 0.2s;
        }
        
        .error-number span:nth-child(3) {
            animation: bounce 1s ease infinite alternate;
            animation-delay: 0.3s;
        }
        
        .error-message {
            font-size: 2rem;
            color: #1a3a6c;
            margin-bottom: 30px;
            position: relative;
        }
        
        .error-message::after {
            content: '';
            display: block;
            width: 100px;
            height: 3px;
            background: linear-gradient(to right, #1a3a6c, #4a8cff);
            margin: 20px auto 0;
            border-radius: 2px;
        }
        
        .error-description {
            font-size: 1.2rem;
            color: #666;
            max-width: 600px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }
        
        .error-actions {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
            margin-bottom: 60px;
        }
        
        .btn-secondary {
            background: transparent;
            border: 2px solid #4a8cff;
            color: #4a8cff;
        }
        
        .btn-secondary:hover {
            background: #4a8cff;
            color: white;
        }
        
        /* 广告横幅样式 */
        .ad-banner {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            padding: 40px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .ad-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        
        .ad-icon {
            font-size: 3rem;
            color: #4a8cff;
            margin-bottom: 20px;
            animation: pulse 2s infinite;
        }
        
        .ad-title {
            font-size: 1.8rem;
            color: #1a3a6c;
            margin-bottom: 15px;
        }
        
        .ad-text {
            font-size: 1.2rem;
            color: #666;
            margin-bottom: 25px;
        }
        
        .ad-highlight {
            color: #4a8cff;
            font-weight: 700;
        }
        
        /* 推荐服务样式 */
        .services-section {
            background: white;
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .service-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.5s ease;
            text-align: center;
            padding: 40px 25px;
            position: relative;
            opacity: 0;
            transform: translateY(30px);
        }
        
        .service-card.animated {
            opacity: 1;
            transform: translateY(0);
        }
        
        .service-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(to right, #1a3a6c, #4a8cff);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.5s ease;
        }
        
        .service-card:hover::before {
            transform: scaleX(1);
        }
        
        .service-icon {
            font-size: 3.5rem;
            color: #4a8cff;
            margin-bottom: 25px;
            transition: all 0.5s ease;
        }
        
        .service-card:hover .service-icon {
            transform: scale(1.1) rotate(5deg);
        }
        
        .service-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: #1a3a6c;
            transition: all 0.3s ease;
        }
        
        .service-card:hover h3 {
            color: #4a8cff;
        }
        
        .service-card p {
            color: #666;
            margin-bottom: 25px;
            line-height: 1.6;
        }
        
        .price {
            font-size: 1.8rem;
            font-weight: 700;
            color: #4a8cff;
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }
        
        .price::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: #4a8cff;
            transition: width 0.5s ease;
        }
        
        .service-card:hover .price::after {
            width: 100%;
        }
        
        /* 详情查看样式 */
        .detail-link {
            display: inline-block;
            color: #4a8cff;
            font-weight: 600;
            position: relative;
            padding: 5px 0;
            transition: all 0.3s ease;
        }
        
        .detail-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #4a8cff;
            transition: width 0.3s ease;
        }
        
        .detail-link:hover {
            color: #1a3a6c;
            transform: translateX(5px);
        }
        
        .detail-link:hover::after {
            width: 100%;
        }
        
        .detail-link i {
            margin-left: 5px;
            transition: transform 0.3s ease;
        }
        
        .detail-link:hover i {
            transform: translateX(5px);
        }
        
        /* 服务流程样式 */
        .process-container {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
        }
        
        .process-line {
            position: absolute;
            top: 50px;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(to right, #1a3a6c, #4a8cff);
            z-index: 1;
        }
        
        .process-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
            z-index: 2;
        }
        
        .process-step {
            text-align: center;
            width: 20%;
            animation: pulse 2s infinite;
        }
        
        .step-icon {
            width: 100px;
            height: 100px;
            background: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            font-size: 2.5rem;
            color: #4a8cff;
            position: relative;
            transition: all 0.5s ease;
        }
        
        .process-step:hover .step-icon {
            transform: scale(1.1);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }
        
        .step-number {
            position: absolute;
            top: -10px;
            right: -10px;
            width: 30px;
            height: 30px;
            background: #4a8cff;
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 700;
        }
        
        .process-step h3 {
            font-size: 1.2rem;
            margin-bottom: 15px;
            color: #1a3a6c;
            line-height: 1.4;
        }
        
        .process-step p {
            line-height: 1.6;
            padding: 0 10px;
        }
        
        /* 财税知识样式 */
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .knowledge-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.5s ease;
        }
        
        .knowledge-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        
        .knowledge-image {
            height: 200px;
            overflow: hidden;
        }
        
        .knowledge-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .knowledge-card:hover .knowledge-image img {
            transform: scale(1.1);
        }
        
        .knowledge-content {
            padding: 25px;
        }
        
        .knowledge-content h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: #1a3a6c;
        }
        
        .knowledge-content p {
            color: #666;
            margin-bottom: 15px;
            font-size: 0.9rem;
        }
        
        .knowledge-date {
            font-size: 0.8rem;
            color: #999;
        }
    
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes pulse {
            0% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1);
            }
        }
        
        @keyframes float {
            0% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-20px);
            }
            100% {
                transform: translateY(0);
            }
        }
        
        @keyframes bounce {
            0% {
                transform: translateY(0);
            }
            100% {
                transform: translateY(-30px);
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .process-steps {
                flex-wrap: wrap;
            }
            
            .process-step {
                width: 50%;
                margin-bottom: 30px;
            }
            
            .process-line {
                display: none;
            }
            
            .header-phone {
                font-size: 1rem;
            }
            
            .error-number {
                font-size: 12rem;
            }
        }
        
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            
            nav ul {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background: white;
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 50px;
                transition: left 0.3s ease;
            }
            
            nav ul.active {
                left: 0;
            }
            
            nav ul li {
                margin: 15px 0;
            }
            
            .services-grid,
            .advantages-grid,
            .knowledge-grid {
                grid-template-columns: 1fr;
            }
            
            .process-step {
                width: 100%;
            }
            
            .header-phone {
                display: none;
            }
            
            .error-number {
                font-size: 8rem;
            }
            
            .error-message {
                font-size: 1.5rem;
            }
            
            .error-actions {
                flex-direction: column;
                align-items: center;
            }
        }
        
        @media (max-width: 576px) {
            .section {
                padding: 60px 0;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .error-number {
                font-size: 6rem;
            }
            
            .footer-links {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
        }