/* 独享CSS部分 - 404页面 */
        .error-section {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
            background: var(--light-color);
            position: relative;
            overflow: hidden;
        }

        .error-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 171, 0, 0.05) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
            z-index: 0;
        }

        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .error-container {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .error-content {
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 60px 40px;
            animation: fadeInUp 0.8s ease forwards;
            position: relative;
            overflow: hidden;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .error-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
            background-size: 200% 100%;
            animation: gradientShift 3s ease infinite;
        }

        .error-number {
            font-size: 8rem;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1;
            text-shadow: 2px 2px 0 var(--secondary-color),
                         4px 4px 0 rgba(0, 0, 0, 0.1);
            animation: bounce 2s ease infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
        }

        .error-title {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .error-description {
            font-size: 1.2rem;
            color: var(--gray-color);
            margin-bottom: 40px;
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .error-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }

        .error-search {
            display: flex;
            max-width: 500px;
            margin: 0 auto 30px;
        }

        .search-input {
            flex: 1;
            padding: 12px 20px;
            border: 2px solid #e0e0e0;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }

        .search-input:focus {
            outline: none;
            border-color: var(--primary-color);
        }

        .search-btn {
            padding: 12px 25px;
            background: var(--primary-color);
            color: white;
            border: none;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }

        .search-btn:hover {
            background: var(--accent-color);
        }

        .quick-links {
            margin-top: 40px;
        }

        .quick-links h3 {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
            max-width: 600px;
            margin: 0 auto;
        }

        .link-item {
            background: var(--light-color);
            padding: 15px;
            border-radius: var(--radius);
            transition: var(--transition);
            text-align: center;
        }

        .link-item:hover {
            background: var(--primary-color);
            transform: translateY(-5px);
        }

        .link-item:hover a {
            color: white;
        }

        .link-item a {
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .error-number {
                font-size: 6rem;
            }
            
            .error-title {
                font-size: 2rem;
            }
            
            .error-content {
                padding: 40px 25px;
            }
            
            .error-actions {
                flex-direction: column;
                align-items: center;
            }
        }

        @media (max-width: 576px) {
            .error-number {
                font-size: 4rem;
            }
            
            .error-title {
                font-size: 1.5rem;
            }
            
            .error-description {
                font-size: 1rem;
            }
            
            .links-grid {
                grid-template-columns: 1fr;
            }
        }