/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family:'Noto Sans SC', 'Noto Serif SC', 'Source Han Sans', 'ZCOOL QingKe HuangYou', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* 导航栏样式 */
header {
    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;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #007bff;
}

/* 桌面端导航 */
.nav-links {
    display: flex;
    list-style: none;
}

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    transition: color 0.3s;
    position: relative;
    padding: 5px 0;
}

.nav-links a:hover {
    color: #007bff;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #007bff;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    cursor: pointer;
    z-index: 1100;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    -webkit-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
    background-color: #333;
}

/* 导航栏按钮样式 */
.nav-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
}

.btn-secondary {
    background-color: transparent;
    color: #007bff;
    padding: 12px 30px;
    border: 2px solid #007bff;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-secondary:hover {
    background-color: #007bff;
    color: white;
    transform: translateY(-2px);
}

/* 移动端菜单样式 */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    /* 隐藏移动端的导航按钮 */
    .nav-buttons {
        display: none;
    }
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
    padding: 150px 0 100px;
    text-align: center;
    margin-top: 70px;
    /* background-image: url('images/hero-bg.jpg'); */
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
}

/* 高亮文本样式 */
.highlight-text {
    font-size: 1.3em;
    color: #1E88E5;
    font-weight: bold;
}

/* 红色文本样式 */
.red-text {
    color: #FF0000;
    font-weight: bold;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 30px;
    opacity: 0.9;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.btn-primary {
    background-color: white;
    color: #007bff;
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.btn-primary:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.2);
}

/* 服务卡片样式 */
.services {
    padding: 100px 0;
    background-color: #f8f9fa;
}

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

.section-title h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #333;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #007bff;
}

.section-title p {
    font-size: 18px;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s;
    border-top: 4px solid #007bff;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.card-icon {
    font-size: 48px;
    color: #007bff;
    margin-bottom: 20px;
    text-align: center;
}

.card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #333;
    text-align: center;
}

.card p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    text-align: center;
}

/* 行业解决方案样式 */
.solutions {
    padding: 100px 0;
    background-color: white;
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.industry-item {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
    border: 1px solid #e9ecef;
}

.industry-item:hover {
    background-color: #007bff;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,123,255,0.2);
}

.industry-item h4 {
    font-size: 18px;
    color: #333;
    margin-top: 15px;
    transition: color 0.3s;
}

.industry-item:hover h4 {
    color: white;
}

/* 客户案例样式 */
.cases {
    padding: 100px 0;
    background-color: #f8f9fa;
    text-align: center;
}

.cases p {
    font-size: 18px;
    color: #666;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

/* 新增客户案例展示样式 */
.case-study {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    margin-top: 40px;
}

.case-study .case-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    max-height: 400px;
    object-fit: cover;
}

.case-content {
    max-width: 800px;
    text-align: center;
}

.case-description {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.case-description p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    text-align: left;
}

.case-description p:last-child {
    margin-bottom: 0;
    background-color: #e3f2fd;
    padding: 20px;
    border-radius: 8px;
    color: #1976d2;
    font-weight: 500;
}

/* 案例研究展示 */
.case-studies {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.case-item {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.case-item.active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.case-image {
    height: 200px;
    background-color: #e9ecef;
    background-image: linear-gradient(135deg, #007bff10 0%, #0056b310 100%);
    background-size: cover;
    background-position: center;
    border-bottom: 4px solid #007bff;
}

.case-content {
    padding: 25px;
    text-align: left;
}

.case-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.case-content p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 0;
}

/* AI管理平台样式 */
.ai-platform {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.ai-platform::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 50% 50%, rgba(0,123,255,0.05) 0%, rgba(0,123,255,0) 70%);
    z-index: 0;
}

.platform-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
    min-height: 700px;
}

.platform-description {
    font-size: 20px;
    color: #333;
    text-align: center;
    margin-bottom: 30px;
    max-width: 800px;
    line-height: 1.6;
}

.platform-description .highlight-text {
    color: #007bff;
    font-weight: bold;
}

.robot-image-container {
    position: relative;
    z-index: 2;
    margin: 40px 0;
}

.robot-image {
    width: 330px;
    height: 666px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.ai-benefits {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 900px;
    height: 100%;
    max-height: 600px;
    z-index: 1;
}

.benefit-item {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 20px;
    width: 250px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.benefit-item.top-left {
    top: 20px;
    left: 20px;
}

.benefit-item.top-right {
    top: 20px;
    right: 20px;
}

.benefit-item.middle-left {
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.benefit-item.middle-right {
    top: 50%;
    right: 0;
    transform: translateY(-50%);
}

.benefit-item.bottom-left {
    bottom: 20px;
    left: 20px;
}

.benefit-item.bottom-right {
    bottom: 20px;
    right: 20px;
}

.benefit-icon {
    font-size: 40px;
    margin-right: 15px;
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #e3f2fd;
    border-radius: 50%;
    flex-shrink: 0;
}

.benefit-content {
    flex: 1;
}

.benefit-title {
    font-size: 16px;
    color: #333;
    margin-bottom: 5px;
    line-height: 1.4;
}

.benefit-number {
    font-size: 24px;
    font-weight: bold;
    color: #ff0000;
    line-height: 1.2;
}

/* 机器人图像占位符 */
.robot-placeholder {
    width: 200px;
    height: 200px;
    background-color: #007bff;
    border-radius: 50%;
    margin: 40px 0;
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 120px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
    width: 100%;
    max-width: 800px;
}

.stat-item {
    text-align: center;
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(30px);
}

.stat-item.active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.stat-number {
    font-size: 48px;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 10px;
    font-family: 'Arial', sans-serif;
}

.stat-label {
    font-size: 18px;
    color: #666;
}

/* 联系我们样式 */
.contact-section {
    padding: 100px 0;
    background-color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 50px;
}

.contact-form {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.contact-form h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #333;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0,123,255,0.1);
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #333;
}

.contact-info ul {
    list-style: none;
    margin-bottom: 30px;
}

.contact-info li {
    font-size: 16px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.contact-info li strong {
    color: #333;
}

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

.social-icon {
    display: inline-block;
    padding: 10px 20px;
    background-color: #f8f9fa;
    color: #333;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 16px;
}

.social-icon:hover {
    background-color: #007bff;
    color: white;
    transform: translateY(-2px);
}

/* 底部样式 */
footer {
    background-color: #333;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: white;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: #007bff;
}

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

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

.footer-column a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
    display: inline-block;
    position: relative;
    padding-left: 0;
    transition: all 0.3s;
}

.footer-column a:hover {
    color: white;
    padding-left: 5px;
}

.footer-column a::before {
    content: '→';
    position: absolute;
    left: -15px;
    opacity: 0;
    transition: all 0.3s;
}

.footer-column a:hover::before {
    left: 0;
    opacity: 1;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    color: #ccc;
    font-size: 14px;
}

/* 套餐选择区域样式 */
.trial-section {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.trial-section p {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin: 20px 0 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 套餐容器 */
.packages-container {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 30px;
}

/* 套餐卡片 */
.package-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    padding: 30px;
    width: 300px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.package-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

/* 套餐头部 */
.package-header {
    margin-bottom: 25px;
    text-align: center;
}

.package-header h3 {
    font-size: 22px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.package-price {
    font-size: 32px;
    font-weight: bold;
    color: #007bff;
}

.package-unit {
    font-size: 16px;
    font-weight: normal;
    color: #666;
}

/* 套餐功能列表 */
.package-features {
    list-style: none;
    margin: 0 0 30px 0;
    padding: 0;
    flex: 1;
}

.package-features li {
    font-size: 16px;
    color: #333;
    margin-bottom: 12px;
    line-height: 1.5;
    position: relative;
    padding-left: 5px;
}

/* 免费试用按钮 */
.btn-trial {
    display: block;
    text-align: center;
    background-color: #007bff;
    color: white;
    padding: 12px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.btn-trial:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .service-cards,
    .industry-grid,
    .footer-content,
    .case-studies {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .service-cards,
    .industry-grid,
    .footer-content,
    .stats,
    .case-studies {
        grid-template-columns: 1fr;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .card h3 {
        font-size: 20px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .social-links {
        flex-wrap: wrap;
    }
}

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

.card,
.stat-item,
.industry-item {
    animation: fadeIn 0.6s ease-out forwards;
}

.card:nth-child(2),
.stat-item:nth-child(2),
.industry-item:nth-child(2) {
    animation-delay: 0.2s;
}

.card:nth-child(3),
.stat-item:nth-child(3),
.industry-item:nth-child(3) {
    animation-delay: 0.4s;
}

.card:nth-child(4),
.industry-item:nth-child(4) {
    animation-delay: 0.6s;
}

.card:nth-child(5),
.industry-item:nth-child(5) {
    animation-delay: 0.8s;
}

.card:nth-child(6),
.industry-item:nth-child(6) {
    animation-delay: 1s;
}

.industry-item:nth-child(7) {
    animation-delay: 1.2s;
}

.industry-item:nth-child(8) {
    animation-delay: 1.4s;
}