/* 重置样式和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.nav-logo h2 {
    color: #2c3e50;
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

.nav-link:hover,
.nav-link.active {
    color: #3498db;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域样式 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #7f8c8d;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #3498db;
    border: 2px solid #3498db;
}

.btn-secondary:hover {
    background: #3498db;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(52, 152, 219, 0.3);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-placeholder {
    width: 400px;
    height: 300px;
    background: linear-gradient(45deg, #3498db, #2c3e50);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 页面标题样式 */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 服务区域样式 */
.services {
    padding: 80px 0;
    background: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
    margin-bottom: 1.5rem;
}

.icon-placeholder {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, #3498db, #2c3e50);
    border-radius: 50%;
    margin: 0 auto;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.service-description {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 关于我们样式 */
.about {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.about-description {
    font-size: 1.1rem;
    color: #7f8c8d;
    line-height: 1.8;
    margin-bottom: 2rem;
}

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

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #3498db;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.about-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 新闻样式 */
.news-section {
    padding: 60px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.news-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

.news-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #3498db, #2c3e50);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
}

.news-content {
    padding: 1.5rem;
}

.news-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.news-date,
.news-category {
    font-size: 0.9rem;
    color: #7f8c8d;
}

.news-category {
    background: #ecf0f1;
    padding: 0.2rem 0.8rem;
    border-radius: 15px;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-excerpt {
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.read-more {
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #2980b9;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.page-btn {
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    background: white;
    color: #333;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.page-btn:hover,
.page-btn.active {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

/* 联系页面样式 */
.contact-section {
    padding: 60px 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-icon .icon-placeholder {
    width: 50px;
    height: 50px;
    border-radius: 10px;
}

.phone-icon {
    background: linear-gradient(45deg, #27ae60, #2ecc71);
}

.email-icon {
    background: linear-gradient(45deg, #e74c3c, #c0392b);
}

.location-icon {
    background: linear-gradient(45deg, #f39c12, #e67e22);
}

.contact-details h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* 表单样式 */
.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #ecf0f1;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 地图样式 */
.map-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.map-container {
    margin-top: 2rem;
}

.map-placeholder {
    height: 400px;
    background: linear-gradient(45deg, #95a5a6, #7f8c8d);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

/* FAQ样式 */
.faq-section {
    padding: 60px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #ecf0f1;
    margin-bottom: 1rem;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    cursor: pointer;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: #3498db;
}

.faq-question h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 1.5rem;
}

.faq-answer p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-subtitle {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #ecf0f1;
}

.footer-description {
    color: #bdc3c7;
    line-height: 1.6;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.contact-info p {
    color: #bdc3c7;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        justify-content: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .service-card,
    .contact-form {
        padding: 1.5rem;
    }
    
    .hero-placeholder {
        width: 300px;
        height: 200px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.service-card,
.news-card,
.contact-card {
    animation: fadeInUp 0.6s ease forwards;
}

.service-card:nth-child(2) {
    animation-delay: 0.1s;
}

.service-card:nth-child(3) {
    animation-delay: 0.2s;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #3498db;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2980b9;
}

.icp-container {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

/* 备案链接样式 */
.icp-container a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
    white-space: nowrap;
}

.icp-container a:hover {
    color: aaa;
    text-decoration: underline;
}

/* 分隔图标样式 */
.separator-icon {
    color: #666;
    padding: 0 5px;
    user-select: none;
}

/* 响应式适配 */
@media (max-width: 480px) {
    .icp-container {
        flex-direction: column;
        gap: 5px;
    }
    .separator-icon {
        display: none; /* 手机端隐藏分隔符 */
    }
}