/* ========================================
   SEO内容区域样式 - 简洁版
   ======================================== */

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 核心优势区域 */
.intro-section {
    padding: 40px 0;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    color: #111827;
    text-align: center;
    margin: 0 0 20px 0;
}

.advantage-description {
    font-size: 16px;
    line-height: 1.8;
    color: #374151;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.advantage-description strong {
    color: #a31e22;
    font-weight: 600;
}

/* 如何压缩PPT区域 */
.features-section {
    padding: 40px 0;
}

.howto-list {
    max-width: 900px;
    margin: 0 auto;
}

.howto-item {
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 20px;
}

.howto-item:last-child {
    margin-bottom: 0;
}

.howto-title {
    font-size: 18px;
    font-weight: 600;
    color: #111827;
    margin: 0 0 12px 0;
    line-height: 1.4;
}

.howto-description {
    font-size: 15px;
    line-height: 1.8;
    color: #4b5563;
    margin: 0;
}

.howto-description strong {
    color: #a31e22;
    font-weight: 600;
}


/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 768px) {
    .intro-section,
    .features-section {
        padding: 32px 0;
    }
    
    .section-title {
        font-size: 22px;
        margin-bottom: 16px;
    }
    
    .advantage-description {
        font-size: 15px;
        line-height: 1.7;
    }
    
    .howto-item {
        padding: 20px;
        margin-bottom: 16px;
    }
    
    .howto-title {
        font-size: 16px;
        margin-bottom: 10px;
    }
    
    .howto-description {
        font-size: 14px;
        line-height: 1.7;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 20px;
    }
    
    .advantage-description {
        font-size: 14px;
    }
    
    .howto-item {
        padding: 16px;
    }
    
    .howto-title {
        font-size: 15px;
    }
    
    .howto-description {
        font-size: 13px;
    }
}