/* 步骤部分样式 */
.steps-section {
    background: white;
    padding: 4rem 2rem;
    text-align: center;
    border-radius: 15px;
    margin: 3rem auto;
    max-width: 1200px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.steps-section h2 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 3rem;
    font-weight: 600;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin: 0 auto;
    padding: 0 1rem;
}

.step-card {
    text-align: center;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.step-circle {
    width: 50px;
    height: 50px;
    background: #007bff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 123, 255, 0.3);
}

.step-content h3 {
    font-size: 1.25rem;
    color: #333;
    margin-bottom: 1rem;
    font-weight: 600;
}

.step-content p {
    color: #666;
    margin-bottom: 0;
    line-height: 1.6;
    font-size: 0.95rem;
}

@media (max-width: 1200px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .steps-section {
        margin: 2rem 1rem;
    }
}

@media (max-width: 768px) {
    .steps-section {
        padding: 3rem 1rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .step-card {
        padding: 1.5rem;
    }
    
    .steps-section h2 {
        font-size: 1.75rem;
        margin-bottom: 2rem;
    }
}

@media (max-width: 480px) {
    .steps-section {
        padding: 2rem 1rem;
        margin: 1rem;
    }
    
    .steps-section h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .step-card {
        padding: 1.25rem;
    }
    
    .step-circle {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .step-content h3 {
        font-size: 1.1rem;
    }
    
    .step-content p {
        font-size: 0.9rem;
    }
}