/* 关于页面 - 简洁实用风格 */
body {
    background: #f5f7fa;
    padding-top: 0;
}

.about-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px 80px;
}

/* 页面标题 */
.page-title-section {
    padding: 50px 0 50px;
    text-align: center;
    background: linear-gradient(to bottom, #f8f9fa 0%, #fff 100%);
    border-bottom: 1px solid #e8e8e8;
    position: relative;
    margin-bottom: 50px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    margin-top: 100px;
}

.page-title-section::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #1890ff 0%, #40a9ff 100%);
    border-radius: 2px;
}

.page-title {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 12px 0;
    letter-spacing: -0.5px;
}

.page-desc {
    font-size: 15px;
    color: #666;
    margin: 0;
}

/* 内容区域 */
.about-content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 内容卡片 */
.content-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 24px 28px;
    border-bottom: 1px solid #f0f0f0;
}

.card-header i {
    font-size: 22px;
    color: #1890ff;
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin: 0;
}

.card-body {
    padding: 28px;
}

.card-body p {
    margin: 12px 0;
    line-height: 1.8;
    color: #666;
    font-size: 15px;
}

/* 数据网格 */
.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.data-item {
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.data-num {
    font-size: 32px;
    font-weight: 700;
    color: #1890ff;
    margin-bottom: 8px;
}

.data-label {
    font-size: 13px;
    color: #666;
}

/* 联系方式 */
.contact-wrapper {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.qq-avatar {
    width: 64px;
    height: 64px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.qq-info {
    flex: 1;
}

.qq-label {
    font-size: 12px;
    color: #999;
    margin-bottom: 4px;
}

.qq-number {
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.qq-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: #1890ff;
    color: #fff;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.qq-btn:hover {
    background: #40a9ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.3);
}

.qq-btn:active {
    transform: translateY(0);
}

.qq-btn i {
    font-size: 16px;
}

/* 响应式 */
@media (max-width: 768px) {
    .about-page {
        padding: 0 15px 100px;
    }

    .page-title-section {
        padding: 35px 0 35px;
        margin-bottom: 35px;
        margin-top: 80px;
    }

    .page-title {
        font-size: 28px;
    }

    .page-desc {
        font-size: 14px;
    }
    
    .page-title-section::after {
        width: 60px;
        height: 3px;
    }

    .about-content-wrapper {
        gap: 15px;
    }

    .card-header {
        padding: 20px;
    }

    .card-header h2 {
        font-size: 16px;
    }

    .card-body {
        padding: 20px;
    }

    .card-body p {
        font-size: 14px;
    }

    .data-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .data-item {
        padding: 16px;
    }

    .data-num {
        font-size: 24px;
    }

    .data-label {
        font-size: 12px;
    }

    .contact-wrapper {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }

    .qq-avatar {
        width: 56px;
        height: 56px;
    }

    .qq-number {
        font-size: 18px;
    }

    .qq-btn {
        width: 100%;
        justify-content: center;
    }
}