/* 404内容区域 */
        .error-section {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 150px 0 100px;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        
        .error-content {
            text-align: center;
            max-width: 800px;
            padding: 0 20px;
        }
        
        .error-code {
            font-size: 10rem;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 0;
            line-height: 1;
            text-shadow: 5px 5px 0 rgba(26, 95, 180, 0.1);
            position: relative;
            animation: float 3s ease-in-out infinite;
        }
        
        .error-code span {
            color: var(--accent);
        }
        
        .error-title {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 20px;
        }
        
        .error-message {
            font-size: 1.3rem;
            color: var(--gray);
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .error-actions {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }
        
        .error-search {
            max-width: 500px;
            margin: 0 auto 40px;
            position: relative;
        }
        
        .error-search input {
            width: 100%;
            padding: 15px 20px;
            border-radius: 50px;
            border: 2px solid var(--light-gray);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        
        .error-search input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 95, 180, 0.1);
        }
        
        .error-search 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);
        }
        
        .error-search button:hover {
            background: var(--primary-dark);
        }
        
        .error-services {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .service-link {
            display: flex;
            align-items: center;
            padding: 20px;
            background: white;
            border-radius: 10px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .service-link:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        
        .service-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            font-size: 1.5rem;
        }
        
        .service-text h4 {
            margin-bottom: 5px;
            font-size: 1.2rem;
        }
        
        .service-text p {
            margin-bottom: 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        
        /* 动画 */
        @keyframes float {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-15px);
            }
        }
        
        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
            20%, 40%, 60%, 80% { transform: translateX(5px); }
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            
            nav ul {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background: white;
                flex-direction: column;
                align-items: center;
                padding: 30px 0;
                box-shadow: 0 10px 30px rgba(0,0,0,0.1);
                transition: var(--transition);
                z-index: 999;
            }
            
            nav ul.active {
                left: 0;
            }
            
            nav li {
                margin: 15px 0;
            }
            
            .header-phone {
                display: none;
            }
            
            .error-code {
                font-size: 8rem;
            }
            
            .error-title {
                font-size: 2rem;
            }
            
            .error-message {
                font-size: 1.1rem;
            }
            
            .error-actions {
                flex-direction: column;
                align-items: center;
            }
        }
        
        @media (max-width: 576px) {
            .error-code {
                font-size: 6rem;
            }
            
            .error-title {
                font-size: 1.8rem;
            }
            
            .error-services {
                grid-template-columns: 1fr;
            }
        }