:root {
    --version: "1.0.1";
}

/* 关于我们页面专用样式 */
.about-us-page {
    font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 15px;
    color: #333;
    line-height: 1.8;
}

.about-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e6e6e6;
}

.about-title {
    font-size: 32px;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.about-subtitle {
    font-size: 18px;
    color: #7f8c8d;
    max-width: 800px;
    margin: 0 auto;
}

.about-section {
    margin-bottom: 50px;
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

    .about-section:hover {
        transform: translateY(-5px);
    }

.section-title {
    font-size: 24px;
    color: #3498db;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
    position: relative;
}

    .section-title:after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 60px;
        height: 2px;
        background: #3498db;
    }

.section-content {
    font-size: 16px;
    color: #555;
}

    .section-content p {
        margin-bottom: 15px;
        text-align: justify;
    }

    .section-content ul {
        margin: 15px 0;
        padding-left: 20px;
    }

    .section-content li {
        margin-bottom: 10px;
        position: relative;
    }

        .section-content li:before {
            content: "•";
            color: #3498db;
            font-weight: bold;
            display: inline-block;
            width: 1em;
            margin-left: -1em;
        }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 25px;
}

.feature-card {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    transition: all 0.3s ease;
}

    .feature-card:hover {
        background: #f0f7ff;
        transform: translateX(5px);
    }

.feature-icon {
    font-size: 32px;
    color: #3498db;
    margin-bottom: 15px;
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
}

.feature-desc {
    font-size: 14px;
    color: #666;
}

.team-section {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
}

.team-member {
    text-align: center;
    max-width: 200px;
}

.member-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 15px;
    border: 3px solid #e6e6e6;
    transition: all 0.3s ease;
}

.team-member:hover .member-avatar {
    border-color: #3498db;
    transform: scale(1.05);
}

.member-name {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 5px;
}

.member-title {
    font-size: 14px;
    color: #7f8c8d;
}

.mission-values {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 40px;
    border-radius: 8px;
}

.value-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.value-icon {
    font-size: 24px;
    color: #3498db;
    margin-right: 15px;
    min-width: 40px;
}

.value-content h4 {
    margin: 0 0 8px 0;
    color: #2c3e50;
}

.back-button {
    display: inline-block;
    padding: 12px 30px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
    margin-top: 20px;
}

    .back-button:hover {
        background: #2980b9;
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
    }

.about-footer {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid #e6e6e6;
    color: #7f8c8d;
    font-size: 14px;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .about-title {
        font-size: 26px;
    }

    .about-subtitle {
        font-size: 16px;
    }

    .about-section {
        padding: 20px;
    }

    .section-title {
        font-size: 22px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .mission-values {
        padding: 25px;
    }
}

@media screen and (max-width: 480px) {
    .about-title {
        font-size: 22px;
    }

    .about-section {
        padding: 15px;
    }

    .section-title {
        font-size: 20px;
    }

    .section-content {
        font-size: 15px;
    }
}