* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

s

/* 头部导航样式 */
.header {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.nav-menu a:hover, .nav-menu a.active {
    background-color: rgba(255, 255, 255, 0.15);
}

/* 主要内容容器 */
.about-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* 英雄区域样式 */
.about-hero {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    padding: 6rem 2rem;
    text-align: center;
    border-radius: 16px;
    margin-bottom: 4rem;
    color: white;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-description {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 统计数据部分 */
.stats-section {
    margin-bottom: 4rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* 愿景部分 */
.vision-section {
    padding: 4rem 0;
    background: white;
    border-radius: 16px;
    margin-bottom: 4rem;
}

.vision-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.page-section-title {
    text-align: center ;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.vision-card {
    text-align: center;
    padding: 2rem;
    background: var(--background-light);
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.vision-card:hover {
    transform: translateY(-5px);
}

.vision-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.vision-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.vision-card p {
    color: var(--text-secondary);
}

/* 发展历程 */
.history-section {
    margin-bottom: 4rem;
    padding: 4rem 0;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--border-color);
    top: 0;
}

.timeline-item {
    margin-bottom: 3rem;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-content {
    width: 45%;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 55%;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 55%;
}

/* 团队部分样式继续... */
/* 团队部分样式 */
.team-section {
    padding: 4rem 0;
    background: white;
    border-radius: 16px;
    margin-bottom: 4rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.team-card {
    text-align: center;
    padding: 2rem;
    background: var(--background-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.team-avatar {
    width: 160px;
    height: 160px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-name {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.team-position {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1rem;
}

.team-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 联系我们部分 */
.contact-section {
    background: white;
    border-radius: 16px;
    padding: 4rem 0;
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
}

.contact-grid .contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact-item .contact-icon {
    font-size: 2rem;
    color: var(--primary-color);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--hover-color);
    border-radius: 12px;
}

.contact-detail h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-detail p {
    color: var(--text-secondary);
}

.contact-map {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.contact-map img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .vision-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

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

    .team-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px !important;
    }

    .timeline-dot {
        left: 30px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .about-hero {
        padding: 3rem 1rem;
    }

    .page-section-title {
        font-size: 1.5rem;
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}

/* 动画效果 */
.stat-card, .vision-card, .team-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover, .vision-card:hover, .team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(255, 127, 107, 0.15);
}

/* 图片加载动画 */
.team-avatar img, .contact-map img {
    transition: transform 0.3s ease;
}

.team-card:hover .team-avatar img {
    transform: scale(1.05);
}

/* 交互反馈 */
.contact-item:hover .contact-icon {
    background: var(--primary-light);
    color: white;
    transform: scale(1.1);
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 打印样式优化 */
@media print {
    .header {
        position: static;
        background: none;
        color: black;
    }

    .about-hero {
        background: none;
        color: black;
    }

    .stat-card, .vision-card, .team-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}