/* 功能特性部分样式 */
.features {
    padding: 4rem 2rem;
    background-color: var(--background-color);
}

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

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

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-item {
    background-color: var(--light-bg);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

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

.feature-icon {
    background-color: var(--primary-light);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.feature-item p {
    color: var(--light-text);
    font-size: 1rem;
    line-height: 1.6;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .features {
        padding: 3rem 1.5rem;
    }
    
    .features h2 {
        font-size: 2rem;
    }
}