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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #f8f9fa;
}

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333;
}

.logo img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
    border-radius: 50%;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: #3498db;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #3498db;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #3498db;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links .active a {
    color: #3498db;
}

.nav-links .active a::after {
    width: 100%;
}

/* 页面标题 */
.page-title {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.page-title h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-title p {
    font-size: 18px;
    opacity: 0.9;
}

/* 关于我们内容 */
.about-section {
    padding: 80px 0;
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.section-title p {
    font-size: 16px;
    color: #666;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
}

.about-item {
    background-color: #f9f9f9;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.about-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.about-item h3 {
    font-size: 24px;
    font-weight: 600;
    color: #3498db;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.about-item h3 i {
    margin-right: 15px;
    font-size: 28px;
}

.about-item p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-item ul {
    list-style: none;
    margin-bottom: 20px;
}

.about-item ul li {
    font-size: 16px;
    color: #666;
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
}

.about-item ul li i {
    color: #3498db;
    margin-right: 10px;
    margin-top: 5px;
}

/* 联系信息 */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.contact-card {
    background-color: #e3f2fd;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-card i {
    font-size: 48px;
    color: #3498db;
    margin-bottom: 20px;
}

.contact-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.contact-card p {
    font-size: 16px;
    color: #666;
    margin-bottom: 10px;
}

.contact-card a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-card a:hover {
    color: #2980b9;
    text-decoration: underline;
}

/* 团队成员 */
.team-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.team-member {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.team-member .avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-color: #e3f2fd;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: #3498db;
}

.team-member h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.team-member p {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

.team-member .social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.team-member .social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #e3f2fd;
    color: #3498db;
    text-decoration: none;
    transition: all 0.3s ease;
}

.team-member .social-links a:hover {
    background-color: #3498db;
    color: #fff;
    transform: translateY(-3px);
}

/* 页脚样式 */
footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 50px;
    height: 50px;
    margin-right: 15px;
    border-radius: 50%;
}

.footer-logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
}

.footer-about p {
    font-size: 14px;
    color: #ccc;
    line-height: 1.6;
}

.footer-links h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    text-decoration: none;
    color: #ccc;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #3498db;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 30px;
    text-align: center;
    font-size: 14px;
    color: #999;
}

.footer-bottom a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: #3498db;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-container {
        flex-direction: column;
        height: auto;
        padding: 15px 20px;
    }

    .nav-links {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-links li {
        margin-left: 0;
        margin-right: 20px;
        margin-bottom: 10px;
    }

    .page-title h1 {
        font-size: 28px;
    }

    .page-title p {
        font-size: 16px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .about-item {
        padding: 30px;
    }

    .about-item h3 {
        font-size: 20px;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .team-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .page-title {
        padding: 40px 0;
    }

    .page-title h1 {
        font-size: 24px;
    }

    .about-section {
        padding: 40px 0;
    }

    .container {
        padding: 0 15px;
    }

    .about-item {
        padding: 20px;
    }

    .contact-card {
        padding: 20px;
    }

    .team-section {
        padding: 40px 0;
    }

    .team-member {
        padding: 20px;
    }

    footer {
        padding: 40px 0 20px;
    }

    .footer-content {
        gap: 30px;
    }
}