/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
    cursor: pointer;
    border: none;
    font-size: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2980b9, #1f5f8b);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

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

.btn-secondary:hover {
    background-color: #3498db;
    color: white;
    transform: translateY(-2px);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.logo-link {
    display: inline-block;
}

.logo-img {
    height: 95px;
    width: auto;
    display: block;
    transition: transform 0.3s ease;
}

.logo-link:hover .logo-img {
    transform: scale(1.05);
}

/* 菜单栏样式 */
.menu-bar {
    width: 100%;
    background-color: #f5f5f5;
    border-top: 1px solid #e0e0e0;
}

.menu-bar .container {
    display: flex;
    justify-content: center;
    padding: 0;
}

.nav-menu ul {
    display: flex;
    list-style: none;
    width: 100%;
    justify-content: center;
    padding: 10px 0;
}

.nav-menu ul li {
    margin: 0 15px;
}

.nav-menu ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 15px;
    border-radius: 5px;
}

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

.nav-menu ul li a:hover {
    color: #3498db;
    background-color: rgba(52, 152, 219, 0.1);
}

.nav-menu ul li a:hover::after {
    width: 100%;
}

/* 当前页面高亮 */
.nav-menu ul li a.active {
    color: #3498db;
    background-color: rgba(52, 152, 219, 0.1);
}

.nav-menu ul li a.active::after {
    width: 100%;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅样式 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 0 15px;
    margin-top: 120px; /* 增加顶部边距以适应两行导航栏 */
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #2c3e50;
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #7f8c8d;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.drone-animation {
    font-size: 200px;
    color: #3498db;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* 通用区块样式 */
.section-padding {
    padding: 80px 0;
}

.bg-light {
    background-color: #f8f9fa;
}

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

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 15px;
}

.divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    margin: 0 auto;
}

/* 关于我们样式 */
.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 16px;
    color: #555;
}

.company-stats {
    display: flex;
    gap: 30px;
    margin-top: 40px;
}

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

.stat-item h3 {
    font-size: 36px;
    font-weight: 700;
    color: #3498db;
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 16px;
    color: #7f8c8d;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 产品与服务样式 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.product-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.product-icon i {
    font-size: 30px;
    color: white;
}

.product-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.product-card p {
    margin-bottom: 20px;
    color: #7f8c8d;
}

.product-features {
    list-style: none;
}

.product-features li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 20px;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

/* 核心技术样式 */
.tech-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.tech-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.tech-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.tech-icon i {
    font-size: 24px;
    color: white;
}

.tech-info h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.tech-info p {
    color: #7f8c8d;
}

/* 应用案例样式 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.case-content {
    padding: 20px;
}

.case-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.case-content p {
    color: #7f8c8d;
}

/* 联系我们样式 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 20px;
    color: white;
}

.contact-text h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #2c3e50;
}

.contact-text p {
    color: #7f8c8d;
}

.contact-form {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

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

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-logo h2 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #3498db;
}

.footer-logo p {
    color: #bdc3c7;
}

.footer-links h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #3498db;
}

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

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

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

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

.footer-social h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #3498db;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .hero-content h2 {
        font-size: 42px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .hero-content h2 {
        font-size: 36px;
    }
    
    .about-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .tech-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .company-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }
    
    .stat-item {
        flex: 1;
        min-width: 150px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    .menu-bar {
        display: none; /* 在移动端隐藏菜单栏 */
    }
    
    .nav-menu {
        display: none; /* 默认隐藏，点击汉堡菜单时显示 */
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        margin-top: 70px; /* 移动端恢复原来的边距 */
    }
    
    .page-header {
        margin-top: 70px; /* 移动端恢复原来的边距 */
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 100px 15px 50px;
        min-height: auto;
        height: auto;
    }
    
    .hero-content {
        max-width: 100%;
        margin-bottom: 30px;
    }
    
    .hero-content h2 {
        font-size: 30px;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-image {
        flex: none;
        margin-top: 30px;
    }
    
    .drone-animation {
        font-size: 150px;
    }
    
    .company-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    .section-padding {
        padding: 60px 0;
    }
    
    .navbar .container {
        padding: 10px 15px;
    }
    
    .logo h1 {
        font-size: 20px;
    }
    
    .logo span {
        font-size: 10px;
    }
}

@media (max-width: 576px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .hero-content h2 {
        font-size: 24px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .drone-animation {
        font-size: 100px;
    }
    
    .stat-item h3 {
        font-size: 28px;
    }
    
    .product-card,
    .case-card,
    .contact-form {
        padding: 20px;
    }
    
    .tech-item {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .section-padding {
        padding: 40px 0;
    }
    
    .footer {
        padding: 40px 0 20px;
    }
}

/* 超小屏幕设备 */
@media (max-width: 400px) {
    .hero-content h2 {
        font-size: 20px;
    }
    
    .hero-content p {
        font-size: 14px;
    }
    
    .section-title h2 {
        font-size: 24px;
    }
    
    .product-card h3,
    .case-content h3,
    .tech-info h3 {
        font-size: 18px;
    }
    
    .product-card p,
    .case-content p,
    .tech-info p {
        font-size: 14px;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .drone-animation {
        font-size: 80px;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        height: auto;
        padding: 80px 0;
    }
    
    .hero-content {
        margin-bottom: 20px;
    }
    
    .hero-content h2 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
        margin-bottom: 20px;
    }
    
    .drone-animation {
        font-size: 80px;
    }
    
    .section-padding {
        padding: 40px 0;
    }
}

/* 高分辨率屏幕优化 */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .hero-content h2 {
        font-size: 54px;
    }
    
    .hero-content p {
        font-size: 20px;
    }
    
    .section-title h2 {
        font-size: 42px;
    }
    
    .drone-animation {
        font-size: 250px;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .hamburger,
    .hero-buttons,
    .footer,
    .back-to-top {
        display: none !important;
    }
    
    .hero {
        height: auto;
        padding: 30px 0;
    }
    
    .section-padding {
        padding: 20px 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000;
        background: #fff;
    }
    
    .product-card,
    .case-card,
    .tech-item,
    .contact-item {
        page-break-inside: avoid;
        break-inside: avoid;
    }
    
    .product-card,
    .case-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* 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;
}

/* 页面标题样式 */
.page-header {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    padding: 100px 0 60px;
    text-align: center;
    margin-top: 120px; /* 增加顶部边距以适应两行导航栏 */
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

/* 时间线样式 */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    background: #3498db;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 100%;
    display: flex;
    justify-content: center;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 50%;
    text-align: right;
    padding-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 50%;
    text-align: left;
    padding-left: 40px;
}

.timeline-year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 16px;
    z-index: 2;
    box-shadow: 0 0 0 4px white, 0 0 0 6px #3498db;
}

.timeline-content {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    width: 100%;
    max-width: 350px;
}

.timeline-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.timeline-content p {
    color: #7f8c8d;
    font-size: 14px;
}

/* 企业文化样式 */
.culture-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.culture-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.culture-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.culture-icon i {
    font-size: 36px;
    color: white;
}

.culture-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.culture-item p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 团队样式 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-member {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.team-member img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.team-member h3 {
    font-size: 20px;
    margin: 20px 0 5px;
    color: #2c3e50;
}

.team-member .position {
    color: #3498db;
    font-weight: 600;
    margin-bottom: 15px;
}

.team-member p {
    padding: 0 20px 20px;
    color: #7f8c8d;
    font-size: 14px;
    line-height: 1.5;
}

/* 响应式时间线 */
@media (max-width: 768px) {
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 70px;
        margin-right: 0;
        text-align: left;
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .timeline-year {
        left: 30px;
    }
    
    .page-header h1 {
        font-size: 36px;
    }
    
    .page-header p {
        font-size: 16px;
    }
}

@media (max-width: 576px) {
    .page-header {
        padding: 80px 0 40px;
        margin-top: 60px;
    }
    
    .page-header h1 {
        font-size: 28px;
    }
    
    .timeline-content {
        max-width: 100%;
    }
    
    .team-member img {
        height: 200px;
    }
}

/* 产品详情样式 */
.product-detail {
    margin-bottom: 60px;
}

.product-detail:last-child {
    margin-bottom: 0;
}

.product-detail-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.product-detail-content.reverse {
    flex-direction: row-reverse;
}

.product-detail-image {
    flex: 1;
}

.product-detail-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.product-detail-info {
    flex: 1;
}

.product-detail-info h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.product-subtitle {
    font-size: 18px;
    color: #3498db;
    margin-bottom: 20px;
    font-weight: 500;
}

.product-detail-info > p {
    font-size: 16px;
    color: #555;
    line-height: 1.6;
    margin-bottom: 25px;
}

.product-highlights,
.product-applications,
.product-specs-table {
    margin-bottom: 25px;
}

.product-highlights h4,
.product-applications h4,
.product-specs-table h4 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.product-highlights ul,
.product-specs ul {
    list-style: none;
    padding-left: 0;
}

.product-highlights li,
.product-specs li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 20px;
}

.product-highlights li::before,
.product-specs li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

.application-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background-color: rgba(52, 152, 219, 0.1);
    color: #3498db;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.product-specs-table table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.product-specs-table th,
.product-specs-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.product-specs-table th {
    background-color: rgba(52, 152, 219, 0.1);
    color: #3498db;
    font-weight: 600;
}

.product-specs-table td:first-child {
    font-weight: 600;
    color: #2c3e50;
}

/* 服务流程样式 */
.process-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 50px;
    right: 50px;
    height: 2px;
    background: linear-gradient(90deg, #3498db, #2980b9);
    z-index: 1;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 180px;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.process-step h3 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.process-step p {
    font-size: 14px;
    color: #7f8c8d;
    line-height: 1.5;
}

/* 技术支持样式 */
.support-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.support-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.support-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.support-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.support-icon i {
    font-size: 30px;
    color: white;
}

.support-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.support-item p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 响应式产品详情 */
@media (max-width: 992px) {
    .product-detail-content,
    .product-detail-content.reverse {
        flex-direction: column;
        gap: 30px;
    }
    
    .product-detail-image,
    .product-detail-info {
        flex: none;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .process-steps {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    
    .process-steps::before {
        top: 30px;
        left: 30px;
        right: 30px;
        height: auto;
        width: 2px;
        bottom: 30px;
        background: linear-gradient(180deg, #3498db, #2980b9);
    }
    
    .process-step {
        max-width: 100%;
    }
    
    .product-detail-info h3 {
        font-size: 24px;
    }
    
    .product-specs-table {
        overflow-x: auto;
    }
    
    .product-specs-table table {
        min-width: 500px;
    }
}

/* 技术特性样式 */
.tech-features {
    list-style: none;
    padding-left: 0;
    margin-top: 15px;
}

.tech-features li {
    padding: 6px 0;
    color: #555;
    position: relative;
    padding-left: 20px;
    font-size: 14px;
}

.tech-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

/* 技术架构样式 */
.architecture-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.architecture-image {
    flex: 1;
}

.architecture-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.architecture-info {
    flex: 1;
}

.architecture-info h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 20px;
}

.architecture-info > p {
    font-size: 16px;
    color: #555;
    line-height: 1.6;
    margin-bottom: 30px;
}

.architecture-layers {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.layer-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.layer-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    flex-shrink: 0;
}

.layer-item h4 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 5px;
}

.layer-item p {
    color: #7f8c8d;
    font-size: 14px;
    line-height: 1.5;
}

/* 研发成果样式 */
.research-content {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.research-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

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

.achievement-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.achievement-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.achievement-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498db, #2980b9);
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.achievement-icon i {
    font-size: 24px;
    color: white;
}

.achievement-item h3 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.achievement-item p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 技术合作样式 */
.cooperation-content {
    text-align: center;
}

.cooperation-content > p {
    font-size: 18px;
    color: #555;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.cooperation-partners {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    text-align: left;
}

.partner-category {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.partner-category h3 {
    font-size: 22px;
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
    padding-bottom: 10px;
    border-bottom: 2px solid #f1f1f1;
}

.partner-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.partner-item {
    padding-bottom: 15px;
    border-bottom: 1px solid #f1f1f1;
}

.partner-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.partner-item h4 {
    font-size: 18px;
    color: #3498db;
    margin-bottom: 8px;
}

.partner-item p {
    color: #7f8c8d;
    font-size: 14px;
    line-height: 1.5;
}

/* 响应式技术架构 */
@media (max-width: 992px) {
    .architecture-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .architecture-image,
    .architecture-info {
        flex: none;
        width: 100%;
    }
    
    .cooperation-partners {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .research-stats {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    .research-achievements {
        grid-template-columns: 1fr;
    }
    
    .layer-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .architecture-info h3 {
        font-size: 24px;
    }
}

/* 案例详情样式 */
.case-details {
    margin: 20px 0;
}

.case-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.case-stat {
    text-align: center;
    background: rgba(52, 152, 219, 0.1);
    padding: 10px 15px;
    border-radius: 8px;
    flex: 1;
}

.case-stat h4 {
    font-size: 14px;
    color: #7f8c8d;
    margin-bottom: 5px;
}

.case-stat p {
    font-size: 18px;
    font-weight: 700;
    color: #3498db;
}

.case-features {
    margin-bottom: 20px;
}

.case-features h4 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.case-features ul {
    list-style: none;
    padding-left: 0;
}

.case-features li {
    padding: 5px 0;
    color: #555;
    position: relative;
    padding-left: 15px;
    font-size: 14px;
}

.case-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #3498db;
}

.case-link {
    display: inline-flex;
    align-items: center;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.case-link:hover {
    color: #2980b9;
}

.case-link i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.case-link:hover i {
    transform: translateX(3px);
}

/* 客户评价样式 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.testimonial-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
    font-style: italic;
    color: #555;
    line-height: 1.6;
    margin-bottom: 20px;
    position: relative;
    padding: 0 20px;
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    left: -10px;
    top: -10px;
    font-size: 60px;
    color: rgba(52, 152, 219, 0.2);
    font-family: Georgia, serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 5px;
}

.author-info p {
    font-size: 14px;
    color: #7f8c8d;
}

/* 合作伙伴样式 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.partner-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    height: 120px;
}

.partner-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.partner-item img {
    max-width: 100%;
    max-height: 80px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.partner-item:hover img {
    transform: scale(1.1);
}

/* 联系表单增强样式 */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group select {
    width: 100%;
    padding: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    font-size: 16px;
    background-color: white;
    transition: border-color 0.3s ease;
}

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

/* 复选框样式 */
.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
    color: #555;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: #3498db;
    border-color: #3498db;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 14px;
    font-weight: bold;
}

/* 地图样式 */
.map-container {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.map-placeholder {
    position: relative;
    width: 100%;
    height: 400px;
}

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

.map-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 30px;
    color: white;
}

.map-info h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.map-info p {
    margin-bottom: 20px;
    opacity: 0.9;
}

/* 常见问题样式 */
.faq-content {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: rgba(52, 152, 219, 0.05);
}

.faq-question h3 {
    font-size: 18px;
    color: #2c3e50;
    margin: 0;
    font-weight: 600;
}

.faq-question i {
    color: #3498db;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 20px 20px;
    color: #555;
    line-height: 1.6;
}

/* 响应式案例样式 */
@media (max-width: 768px) {
    .case-stats {
        flex-direction: column;
        gap: 10px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-content {
        font-size: 14px;
    }
    
    .testimonial-content::before {
        font-size: 40px;
    }
}
/* 移动端导航菜单样式增强 */
.nav-menu.active {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: white;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-menu.active ul {
    flex-direction: column;
    width: 100%;
}

.nav-menu.active ul li {
    margin: 10px 0;
    text-align: center;
}

.nav-menu.active ul li a {
    display: block;
    padding: 12px 0;
    color: #333;
    border-bottom: 1px solid #f1f1f1;
    transition: all 0.3s ease;
}

.nav-menu.active ul li a:hover {
    color: #3498db;
    background-color: rgba(52, 152, 219, 0.1);
}