/* 关于页面主容器 */
.about-container {
    padding: 2rem 5%;
}

/* 平台介绍部分 */
.platform-intro {
    text-align: center;
    margin-bottom: 4rem;
}

.intro-content h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.intro-content p {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.intro-content img {
    width: 100%;
    max-width: 1200px;
    border-radius: 10px;
    box-shadow: 0 3px 20px rgba(0,0,0,0.1);
}

/* 数据统计部分 */
.statistics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
    text-align: center;
}

.stat-item {
    padding: 2rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: #e74c3c;
    margin-bottom: 1rem;
}

.stat-item p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

/* 平台优势部分 */
.advantages {
    margin-bottom: 4rem;
}

.advantages h2 {
    text-align: center;
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 2rem;
}

.advantage-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.advantage-card {
    padding: 2rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-card img {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
}

.advantage-card h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.advantage-card p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 联系我们部分 */
.contact {
    background: #f8f9fa;
    padding: 4rem 0;
    border-radius: 10px;
}

.contact h2 {
    text-align: center;
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 2rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.contact-item {
    text-align: center;
}

.contact-item h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.contact-item p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .statistics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantage-cards {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
}