/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: #0056b3;
    transition: color 0.3s ease;
}

a:hover {
    color: #003d7a;
}

ul {
    list-style: none;
}

.btn {
    display: inline-block;
    background-color: #0056b3;
    color: #fff;
    padding: 10px 25px;
    border-radius: 4px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #003d7a;
    color: #fff;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: #0056b3;
}

/* 头部样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 1.5rem;
    color: #0056b3;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: #333;
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
}

nav ul li a:hover,
nav ul li a.active {
    color: #0056b3;
    background-color: rgba(0, 86, 179, 0.1);
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #0056b3, #00a0e9);
    color: #fff;
    padding: 100px 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* 特性区域样式 */
.features {
    padding: 80px 0;
    background-color: #fff;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-item .icon {
    font-size: 2.5rem;
    color: #0056b3;
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #0056b3;
}

/* 关于预览区域样式 */
.about-preview {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* 统计数据区域样式 */
.stats {
    padding: 60px 0;
    background: linear-gradient(135deg, #0056b3, #00a0e9);
    color: #fff;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 1.1rem;
}

/* 页面头部样式 */
.page-header {
    background: linear-gradient(135deg, #0056b3, #00a0e9);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.page-header h2 {
    font-size: 2.5rem;
}

/* 关于我们页面样式 */
.about-section {
    padding: 80px 0;
    background-color: #fff;
}

.about-section .about-content {
    margin-bottom: 50px;
    text-align: left;
}

.about-section h3 {
    color: #0056b3;
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.mission, .vision {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* 产品优势区域样式 */
.advantages {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.advantage-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.advantage-item .icon {
    font-size: 2.5rem;
    color: #0056b3;
    margin-bottom: 20px;
}

.advantage-item h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #0056b3;
}

/* 团队区域样式 */
.team {
    padding: 80px 0;
    background-color: #fff;
}

.team-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.team-member {
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.member-info {
    padding: 20px;
}

.member-info h4 {
    color: #0056b3;
    margin-bottom: 5px;
    font-size: 1.3rem;
}

.member-info p {
    margin-bottom: 10px;
}

/* 合作伙伴区域样式 */
.partners {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.partner {
    background-color: #fff;
    padding: 20px 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 200px;
    height: 100px;
    font-weight: bold;
    color: #0056b3;
}

/* 联系我们页面样式 */
.contact-section {
    padding: 80px 0;
    background-color: #fff;
}

.contact-section .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-info h3,
.contact-form h3 {
    color: #0056b3;
    margin-bottom: 30px;
    font-size: 1.8rem;
}

.info-item {
    display: flex;
    margin-bottom: 30px;
}

.info-item i {
    font-size: 1.5rem;
    color: #0056b3;
    margin-right: 20px;
    margin-top: 5px;
}

.info-item h4 {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

/* 地图区域样式 */
.map-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.map-section h3 {
    color: #0056b3;
    margin-bottom: 30px;
    font-size: 1.8rem;
    text-align: center;
}

.map-container {
    height: 400px;
    background-color: #e9ecef;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.location-map {
    width: 100%;
    height: 100%;
    border: none;
}

.map-placeholder {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    color: #6c757d;
}

/* 页脚样式 */
footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-info h3,
.footer-links h3 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-info p {
    margin-bottom: 10px;
}

.footer-info i {
    margin-right: 10px;
    color: #0056b3;
}

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

.footer-links ul li a {
    color: #ddd;
}

.footer-links ul li a:hover {
    color: #fff;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: #aaa;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: 15px;
    }
    
    nav ul {
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 10px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .contact-section .container {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        order: -1;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.2rem;
    }
    
    nav ul li {
        margin: 0 5px;
    }
    
    nav ul li a {
        padding: 5px;
        font-size: 0.9rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
}