/* 关于我们页面专用样式 */

/* 页面标题特殊样式 */
.page-header {
    background: rgba(255, 255, 255, 0.7);
    margin: 20px 10%;
    border-radius: 15px;
}

.page-header p {
    font-size: 1.4rem;
    color: #388e3c;
    font-weight: 500;
}

/* 内容区块样式 */
.content-section {
    margin: 30px 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    color: #1b5e20;
    margin-bottom: 40px;
    position: relative;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: #4caf50;
}

/* 简介部分 */
.intro-container {
    display: flex;
    align-items: center;
    gap: 40px;
}

.intro-text {
    flex: 1;
}

.intro-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

/* 四个特点板块 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: #f1f8e9;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.feature-card h3 {
    font-size: 1.5rem;
    color: #1b5e20;
    margin-bottom: 15px;
}

.feature-card p {
    color: #616161;
    line-height: 1.6;
}

/* 覆盖城市部分 */
.china-map {
    width: 100%;
    height: 400px;
    background: #e8f5e9;
    border-radius: 10px;
    margin: 30px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.china-map:before {
    content: '';
    position: absolute;
    width: 80%;
    height: 80%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><path d="M50,15 C60,20 70,30 65,40 C60,50 55,55 50,60 C45,65 40,70 35,75 C30,80 25,85 30,90 C35,95 45,95 50,95 C55,95 65,95 70,90 C75,85 70,80 65,75 C60,70 55,65 50,60 C45,55 40,50 35,40 C30,30 40,20 50,15 Z" fill="%23c8e6c9" stroke="%232e7d32" stroke-width="0.5"/></svg>') no-repeat center center;
    background-size: contain;
}

.cities-count {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}

.cities-count .number {
    font-size: 4rem;
    font-weight: bold;
    color: #1b5e20;
    line-height: 1;
}

.cities-count .text {
    font-size: 1.2rem;
    color: #388e3c;
}

/* 地区列表 */
.regions-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.region-column {
    background: #f1f8e9;
    border-radius: 10px;
    padding: 20px;
}

.region-column h3 {
    color: #1b5e20;
    font-size: 1.4rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #c8e6c9;
    text-align: center;
}

.region-item {
    margin-bottom: 25px;
}

.region-item h4 {
    color: #2e7d32;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.city-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.city-list span {
    background: #e8f5e9;
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.9rem;
    color: #424242;
}

/* 数据统计部分 */
.stats-section {
    padding: 60px 10%;
    margin: 50px 0;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: #1b5e20;
    margin-bottom: 10px;
}

.stat-text {
    font-size: 1.1rem;
    color: #616161;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .regions-wrapper, .features-grid, .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .intro-container {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .regions-wrapper, .features-grid, .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 600px) {
    .page-header {
        margin: 20px 5%;
        padding: 40px 5%;
    }
}