/* 英雄区域样式 */
        .hero {
            padding: 150px 0 80px;
            text-align: center;
        }
        
        .hero h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: var(--secondary);
        }
        
        .hero p {
            font-size: 1.2rem;
            color: var(--gray);
            max-width: 700px;
            margin: 0 auto 30px;
        }
        
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
        }
        
        .primary-btn {
            background-color: var(--primary);
            color: white;
            padding: 12px 30px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
        }
        
        .secondary-btn {
            background-color: transparent;
            color: var(--secondary);
            padding: 12px 30px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            border: 2px solid var(--secondary);
        }