/* 关于页样式 */
.about-content {
    padding: 100px 5% 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.about-empty {
    text-align: center;
    color: #718096;
    font-size: 1.05rem;
    padding: 4rem 0;
}

.about-label {
    display: inline-block;
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.8rem;
}

/* 区域卡片 */
.about-region {
    margin-bottom: 5rem;
}

.about-region:last-child {
    margin-bottom: 2rem;
}

/* 图文区域卡片 */
.about-region-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-region-reversed .about-region-image {
    order: -1;
}

.about-region-text h2 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-region-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.about-region-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.about-region-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 统计数据 */
.about-stats {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e5e7eb;
}

.about-stat-item {
    text-align: center;
}

.about-stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.about-stat-text {
    display: block;
    font-size: 0.95rem;
    color: #718096;
}

/* 区域卡片头部（居中） */
.about-region-header {
    text-align: center;
    margin-bottom: 2rem;
}

.about-region-header h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* 纯文本区域卡片 */
.about-region-plain {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.about-region-paragraph {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.about-stats-center {
    justify-content: center;
}

/* 地图样式 */
.map-container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    background: var(--light-gray);
}

.map-image {
    width: 100%;
    height: auto;
    display: block;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .about-region-inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about-region-image {
        order: -1;
    }

    .about-stats {
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    .about-content {
        padding: 3rem 5%;
    }

    .about-region {
        margin-bottom: 3.5rem;
    }

    .about-region-text h2 {
        font-size: 1.8rem;
    }

    .about-region-text p,
    .about-region-paragraph {
        font-size: 1rem;
    }

    .about-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .about-stat-number {
        font-size: 2rem;
    }

    .about-region-header h2 {
        font-size: 1.4rem;
    }
}