/* 关于页面 */
body.about-page-body {
    background: #f5f7fa;
    padding-top: 90px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.about-page {
    max-width: 860px;
    margin: 0 auto;
    padding: 40px 20px 48px;
    flex: 1;
    width: 100%;
}

body.about-page-body .clean-footer {
    margin-top: auto;
    flex-shrink: 0;
}

/* 页面标题 */
.page-title-section {
    text-align: center;
    margin-bottom: 36px;
}

.page-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a2e;
    margin: 0 0 8px;
    letter-spacing: -0.5px;
}

.page-desc {
    font-size: 15px;
    color: #94a3b8;
    margin: 0;
}

/* 内容区域 */
.about-content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 内容卡片 */
.content-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    border: 1px solid #f0f0f0;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 24px;
    border-bottom: 1px solid #f5f5f5;
}

.card-header i {
    font-size: 20px;
    color: #1890ff;
}

.card-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a2e;
    margin: 0;
}

.card-body {
    padding: 24px;
}

.card-body p {
    margin: 10px 0;
    line-height: 1.8;
    color: #555;
    font-size: 15px;
}

/* 数据网格 */
.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.data-item {
    text-align: center;
    padding: 20px 12px;
    background: #f8faff;
    border-radius: 10px;
    border: 1px solid #e8f0fe;
}

.data-num {
    font-size: 30px;
    font-weight: 700;
    color: #1890ff;
    margin-bottom: 6px;
    line-height: 1;
}

.data-label {
    font-size: 13px;
    color: #94a3b8;
}

/* 联系方式 */
.contact-wrapper {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px;
    background: #f8faff;
    border-radius: 10px;
    border: 1px solid #e8f0fe;
}

.qq-avatar {
    width: 56px;
    height: 56px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    flex-shrink: 0;
}

.qq-info {
    flex: 1;
}

.qq-label {
    font-size: 12px;
    color: #94a3b8;
    margin-bottom: 3px;
}

.qq-number {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a2e;
}

.qq-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    background: #1890ff;
    color: #fff;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: opacity 0.2s;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
}

.qq-btn:hover {
    opacity: 0.88;
}

.qq-btn i {
    font-size: 15px;
}

/* 响应式 */
@media (max-width: 768px) {
    body.about-page-body {
        padding-top: 75px;
    }

    .about-page {
        padding: 28px 15px 36px;
    }

    .page-title {
        font-size: 26px;
    }

    .data-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .data-item {
        padding: 16px 10px;
    }

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

    .card-header {
        padding: 16px 18px;
    }

    .card-body {
        padding: 18px;
    }

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

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