/* 404内容区域 */
        .error-content {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 60px 0;
            text-align: center;
        }
        
        .error-container {
            max-width: 800px;
            padding: 40px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 16px;
            box-shadow: var(--shadow-dark);
            backdrop-filter: blur(10px);
            animation: fadeInUp 0.8s ease;
        }
        
        .error-icon {
            font-size: 8rem;
            color: var(--primary-light);
            margin-bottom: 30px;
            animation: bounce 2s infinite;
        }
        
        .error-title {
            font-size: 4rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
            font-weight: 700;
        }
        
        .error-message {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 30px;
            line-height: 1.6;
        }
        
        .error-description {
            font-size: 1.1rem;
            color: #666;
            margin-bottom: 40px;
            line-height: 1.8;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .action-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .btn-primary {
            background: var(--primary);
            color: white;
            box-shadow: var(--shadow-light);
        }
        
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        
        .btn-secondary:hover {
            background: var(--primary-light);
            color: white;
            transform: translateY(-3px);
        }
        
        /* 搜索框 */
        .search-box {
            max-width: 500px;
            margin: 40px auto;
            position: relative;
        }
        
        .search-input {
            width: 100%;
            padding: 15px 60px 15px 20px;
            border: 2px solid var(--primary-light);
            border-radius: 50px;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-light);
        }
        
        .search-input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 168, 107, 0.3);
        }
        
        .search-button {
            position: absolute;
            right: 5px;
            top: 5px;
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .search-button:hover {
            background: var(--accent-light);
            transform: rotate(15deg);
        }
        
    
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% {
                transform: translateY(0);
            }
            40% {
                transform: translateY(-20px);
            }
            60% {
                transform: translateY(-10px);
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .nav-menu {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: var(--primary-dark);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 50px;
                transition: left 0.4s ease;
                gap: 30px;
            }
            
            .nav-menu.active {
                left: 0;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .error-icon {
                font-size: 6rem;
            }
            
            .error-title {
                font-size: 3rem;
            }
        }
        
        @media (max-width: 768px) {
            .logo h1 {
                font-size: 1.6rem;
            }
            
            .error-icon {
                font-size: 5rem;
            }
            
            .error-title {
                font-size: 2.5rem;
            }
            
            .error-message {
                font-size: 1.3rem;
            }
            
            .action-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .btn {
                width: 100%;
                justify-content: center;
            }
        }
        
        @media (max-width: 576px) {
            .logo h1 {
                font-size: 1.4rem;
            }
            
            .error-container {
                padding: 30px 20px;
            }
            
            .error-icon {
                font-size: 4rem;
            }
            
            .error-title {
                font-size: 2rem;
            }
            
            .error-message {
                font-size: 1.1rem;
            }
            
            .error-description {
                font-size: 1rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
        }