/* 404页面外部CSS */
        .error-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem;
            text-align: center;
            font-family: 'Microsoft YaHei', sans-serif;
        }
        .error-icon {
            font-size: 8rem;
            color: #e74c3c;
            margin-bottom: 1rem;
        }
        .error-title {
            color: #333;
            font-size: 2.5rem;
            margin: 1.5rem 0;
        }
        .error-desc {
            color: #666;
            font-size: 1.2rem;
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        .search-box {
            margin: 2rem 0;
            display: flex;
            justify-content: center;
            gap: 10px;
        }
        .search-box input {
            padding: 0.8rem 1.2rem;
            width: 300px;
            max-width: 80%;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
        }
        .search-box button {
            padding: 0.8rem 1.5rem;
            background: #3498db;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
        }
        .search-box button:hover {
            background: #2980b9;
        }
        .nav-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            margin: 2rem 0;
        }
        .nav-links a {
            padding: 0.8rem 1.5rem;
            background: #f5f5f5;
            color: #333;
            text-decoration: none;
            border-radius: 4px;
            transition: all 0.3s;
        }
        .nav-links a:hover {
            background: #3498db;
            color: white;
        }
        .contact-info {
            margin: 2rem 0;
            padding: 1.5rem;
            background: #f9f9f9;
            border-radius: 4px;
            display: inline-block;
        }
        .breadcrumb {
            padding: 1rem 2rem;
            text-align: left;
            color: #666;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        @media (max-width: 768px) {
            .error-title {
                font-size: 2rem;
            }
            .search-box input {
                width: 70%;
            }
        }