/* 高级功能部分样式 */
.advanced {
    padding: 4rem 2rem;
    background-color: var(--light-bg);
}

.advanced h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.advanced > p {
    text-align: center;
    color: var(--light-text);
    margin-bottom: 3rem;
    font-size: 1.2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.advanced-features {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.advanced-feature {
    display: flex;
    gap: 2rem;
    align-items: center;
    background-color: var(--background-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.advanced-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.advanced-feature:nth-child(even) {
    flex-direction: row-reverse;
}

.advanced-feature img {
    width: 300px;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.feature-desc {
    flex: 1;
}

.feature-desc h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.feature-desc p {
    color: var(--light-text);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* 响应式调整 */
@media (max-width: 900px) {
    .advanced-feature,
    .advanced-feature:nth-child(even) {
        flex-direction: column;
    }
    
    .advanced-feature img {
        width: 100%;
        height: auto;
        max-height: 300px;
    }
}