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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}
.icp{
    color: #6b7280;
    font-size: 0.8rem;
    font-weight: 400;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    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;
}

.nav-logo h2 {
    color: #3b82f6;
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-logo span {
    color: #6b7280;
    font-size: 0.8rem;
    font-weight: 400;
}

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

.nav-menu a {
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #3b82f6;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #374151;
    margin: 3px 0;
    transition: 0.3s;
}

/* 首页横幅 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    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-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.6;
}

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

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #3b82f6;
    color: white;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #3b82f6;
}

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

/* 服务项目 */
.services {
    padding: 80px 0;
    background: #f8fafc;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: #6b7280;
}

.section-description {
    font-size: 1rem;
    color: #6b7280;
    margin-top: 0.5rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

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

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

.service-icon i {
    font-size: 3rem;
    color: #3b82f6;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon i {
    transform: scale(1.1);
    color: #2563eb;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.service-card p {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.feature-tag {
    background: #eff6ff;
    color: #3b82f6;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid #dbeafe;
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: #3b82f6;
    color: white;
    transform: translateY(-2px);
}

/* 行业方案 */
.solutions {
    padding: 80px 0;
    background: white;
}

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

.solution-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    border-color: #667eea;
}

.solution-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.solution-card:hover .solution-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.solution-icon i {
    font-size: 35px;
    color: white;
}

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

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

.solution-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.solution-features .feature-tag {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

/* 开发场景 */
.scenarios {
    padding: 80px 0;
    background: #f8fafc;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.scenario-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

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

.scenario-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.scenario-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* 产品报价 */
.pricing {
    padding: 80px 0;
    background: white;
}

.pricing-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
    gap: 1rem;
}

.tab-btn {
    padding: 12px 24px;
    border: 2px solid #e5e7eb;
    background: white;
    color: #6b7280;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tab-btn.active,
.tab-btn:hover {
    border-color: #3b82f6;
    color: #3b82f6;
    background: #eff6ff;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: #3b82f6;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.pricing-header {
    margin-bottom: 1.5rem;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: #3b82f6;
}

.price-period {
    font-size: 1rem;
    color: #6b7280;
}

.price-custom {
    font-size: 1rem;
    color: #6b7280;
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1.5rem;
}

.features {
    list-style: none;
    margin-bottom: 2rem;
}

.features li {
    padding: 0.5rem 0;
    color: #6b7280;
    border-bottom: 1px solid #f3f4f6;
}

.features li:last-child {
    border-bottom: none;
}

/* 服务优势 */
.advantages {
    padding: 80px 0;
    background: #f8fafc;
}

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

.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: all 0.3s ease;
}

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

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.advantage-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.advantage-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* 客户案例 */
.cases {
    padding: 80px 0;
    background: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.case-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    text-align: center;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.case-card:hover::before {
    opacity: 0.1;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: #3b82f6;
    background: white;
}

.case-image {
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.case-image i {
    font-size: 3rem;
    color: #3b82f6;
    transition: all 0.3s ease;
}

.case-card:hover .case-image i {
    transform: scale(1.2);
    color: #2563eb;
}

.case-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.case-card p {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.case-tags span {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.case-stats {
    display: flex;
    justify-content: space-between;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
    margin-top: 15px;
    position: relative;
    z-index: 2;
}

.case-stats span {
    background: #f8f9ff;
    color: #667eea;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    flex: 1;
    text-align: center;
    margin: 0 5px;
}

.case-card:hover .case-tags span {
    background: #3b82f6;
    color: white;
    transform: translateY(-2px);
}

/* 数据统计 */
.stats {
    padding: 80px 0;
    background: #1f2937;
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #3b82f6;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.125rem;
    color: #d1d5db;
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background: white;
}

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

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

.feature {
    color: #10b981;
    font-weight: 500;
}

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

/* 联系我们 */
.contact {
    padding: 80px 0;
    background: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.25rem;
    color: white;
}

.contact-details h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: #3b82f6;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.contact-details small {
    color: #6b7280;
    font-size: 0.875rem;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #10b981);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f9fafb;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3b82f6;
    background: white;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* 页脚 */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #3b82f6;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
    color: #d1d5db;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #3b82f6;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

/* 浮动客服按钮 */
.floating-chat {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.chat-button {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    padding: 15px 20px;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: pulse 2s infinite;
}

.chat-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
}

.chat-button i {
    font-size: 1.2rem;
}

.chat-text {
    font-weight: 500;
    white-space: nowrap;
}

.chat-menu {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    padding: 10px;
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.chat-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.chat-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #374151;
}

.chat-option:hover {
    background: #f3f4f6;
    color: #3b82f6;
}

.chat-option i {
    font-size: 1.1rem;
    width: 20px;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 50px;
    height: 50px;
    background: #6b7280;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #3b82f6;
    transform: translateY(-3px);
}

@keyframes pulse {
    0% {
        box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    }
    50% {
        box-shadow: 0 4px 20px rgba(59, 130, 246, 0.6);
    }
    100% {
        box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .hero-image {
        display: none;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .services,
    .solutions,
    .scenarios,
    .pricing,
    .advantages,
    .stats,
    .about,
    .contact {
        padding: 60px 0;
    }
}

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

.service-card,
.scenario-card,
.advantage-card,
.pricing-card {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动行为 */
html {
    scroll-behavior: smooth;
}

/* 加载动画 */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}