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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

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

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

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

.logo .logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #0066cc;
    text-decoration: none;
    position: relative;
}

.logo .logo-text::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #0066cc, #00aaff);
    border-radius: 3px;
}

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

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

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

.nav-menu ul li a:hover,
.nav-menu ul li a.active {
    color: #0066cc;
}

.nav-menu ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #0066cc, #00aaff);
    border-radius: 2px;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: #333;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #0066cc 0%, #00aaff 100%);
    color: #fff;
    padding: 120px 0 80px;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>');
    background-size: 50px 50px;
    opacity: 0.3;
}

.hero .container {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    padding-right: 40px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

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

.btn-primary {
    background: linear-gradient(90deg, #00aaff, #0066cc);
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 170, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 170, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    padding: 12px 30px;
    border: 2px solid #fff;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #fff;
    color: #0066cc;
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* 服务亮点 */
.services-highlights {
    padding: 80px 0;
    background: #fff;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #0066cc, #00aaff);
    border-radius: 3px;
}

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

.service-card {
    background: #f5f7fa;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.1);
    border-color: #0066cc;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #0066cc, #00aaff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: #fff;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.service-card p {
    color: #666;
    line-height: 1.6;
}

/* 服务内容 */
.services-section {
    padding: 80px 0;
    background: #f5f7fa;
}

.services-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
}

.service-item {
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    transition: all 0.3s ease;
    border-left: 4px solid #0066cc;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.1);
}

.service-item h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.service-item p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-link {
    color: #0066cc;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
}

.service-link:hover {
    color: #00aaff;
    transform: translateX(5px);
}

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

.service-link:hover i {
    transform: translateX(5px);
}

/* 解决方案 */
.solutions-section {
    padding: 80px 0;
    background: #fff;
}

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

.solution-card {
    background: #f5f7fa;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.1);
    border-color: #0066cc;
}

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

.solution-card .solution-content {
    padding: 30px;
}

.solution-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.solution-card p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

/* 博客预览 */
.blog-preview {
    padding: 80px 0;
    background: #f5f7fa;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.blog-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.1);
}

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

.blog-content {
    padding: 30px;
}

.blog-date {
    display: inline-block;
    color: #0066cc;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
}

.blog-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.blog-card p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.blog-link {
    color: #0066cc;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.blog-link:hover {
    color: #00aaff;
}

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

.contact-content {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
    padding: 40px;
    background: linear-gradient(135deg, #0066cc, #00aaff);
    color: #fff;
    border-radius: 10px;
}

.contact-info h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
}

.contact-info p {
    margin-bottom: 30px;
    opacity: 0.9;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-item i {
    font-size: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-form {
    flex: 1;
}

.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: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* 页脚 */
.footer {
    background: #333;
    color: #fff;
    padding: 80px 0 40px;
}

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

.footer-section h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #00aaff;
}

.footer-section p {
    margin-bottom: 20px;
    opacity: 0.8;
}

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

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

.footer-section ul li a {
    color: #fff;
    text-decoration: none;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.footer-section ul li a:hover {
    opacity: 1;
    color: #00aaff;
}

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

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

.social-links a:hover {
    background: #00aaff;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: #fff;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    z-index: 2000;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e0e0e0;
}

.mobile-menu-header .logo-text {
    font-size: 20px;
    font-weight: 700;
    color: #0066cc;
}

.close-menu {
    background: none;
    border: none;
    font-size: 24px;
    color: #333;
    cursor: pointer;
}

.mobile-nav ul {
    list-style: none;
    padding: 20px;
}

.mobile-nav ul li {
    margin-bottom: 20px;
}

.mobile-nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 16px;
    display: block;
    padding: 10px 0;
    transition: all 0.3s ease;
}

.mobile-nav ul li a:hover {
    color: #0066cc;
    padding-left: 10px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .services-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .services-highlights,
    .services-section,
    .solutions-section,
    .blog-preview,
    .contact-section,
    .footer {
        padding: 60px 0;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .service-item,
    .contact-info {
        padding: 30px 20px;
    }
    
    .section-title {
        font-size: 24px;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

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

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

::-webkit-scrollbar-thumb {
    background: #0066cc;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #00aaff;
}