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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #2c3e50;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

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

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #2c3e50;
}

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

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.sticky {
    box-shadow: 0 2px 20px rgba(0,0,0,0.2);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}
.logo {
            display: flex;           /* 启用flex布局 */
            align-items: center;     /* 垂直居中对齐 */
            gap: 15px;               /* 元素间距（可选） */
        }

        /* 可选样式：优化视觉效果 */
        .logo img {
            height: 30px;            /* 控制logo高度，宽度自动等比例 */
            display: block;          /* 消除图片底部间隙 */
        }
        
        .logo h2 {
            margin: 0;               /* 清除默认外边距 */
            font-size: 28px;          /* 调整文字大小 */
            font-weight: 600;         /* 调整文字粗细 */
            color: #3498db;            /* 文字颜色 */
        }

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-menu li {
    margin-left: 25px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #3498db;
}

.language-switch {
    margin-left: 20px;
}

#language-select {
    padding: 5px 10px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

/* 顶部CTA横幅 */
.cta-banner {
    background: linear-gradient(135deg, #3498db, #e74c3c);
    color: white;
    padding: 15px 0;
    text-align: center;
    position: sticky;
    z-index: 999;
    top: 70px; /* 导航栏高度 */
    transition: all 0.3s ease;
}

.cta-banner.sticky {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    background: linear-gradient(135deg, #2980b9, #c0392b);
}

.cta-banner p {
    display: inline-block;
    margin: 0;
    font-size: 1.1rem;
    font-weight: 500;
}

.cta-banner .btn {
    background: white;
    color: #e74c3c;
    margin-left: 20px;
    font-weight: bold;
}

.cta-banner .btn:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

/* 首页横幅 */
.hero {
    background: linear-gradient(135deg, #3498db, #8e44ad);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding-top: 160px; /* 增加顶部内边距以避免被导航栏和CTA横幅遮挡 */
}

.hero-container h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-container h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.hero-container p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* 信任指标 */
.trust-indicators {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

.trust-item {
    margin: 0 20px;
    text-align: center;
}

.trust-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 5px;
}

.trust-label {
    font-size: 1rem;
}

.btn {
    display: inline-block;
    background: #3498db;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    text-align: center;
}

.btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.btn-primary {
    background: #e74c3c;
    font-weight: bold;
}

.btn-primary:hover {
    background: #c0392b;
}

/* 什么是Money Robot */
.about-content p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-item {
    text-align: center;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.feature-item:hover {
    transform: translateY(-10px);
}

.feature-item h3 {
    color: #3498db;
    margin-bottom: 15px;
}

/* 使用教程 */
.tutorial-content {
    max-width: 800px;
    margin: 0 auto;
}

.tutorial-content h3 {
    color: #2c3e50;
    margin: 30px 0 15px;
}

.tutorial-content ol, 
.tutorial-content ul {
    margin-left: 30px;
    margin-bottom: 20px;
}

.tutorial-content li {
    margin-bottom: 10px;
}

/* 浮动CTA按钮 */
.floating-cta {
    position: fixed;
    top: 50%;
    right: 0;
    z-index: 1000;
    background: #e74c3c;
    color: white;
    padding: 15px 10px;
    border-radius: 10px 0 0 10px;
    box-shadow: -2px 2px 10px rgba(0,0,0,0.3);
    text-decoration: none;
    font-weight: bold;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
    transform: translateY(-50%);
    width: 50px;
    text-align: center;
}

.floating-cta:hover {
    background: #c0392b;
    transform: translateY(-50%);
    box-shadow: -2px 2px 15px rgba(0,0,0,0.4);
}

.floating-cta-icon {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.floating-cta span {
    font-size: 0.8rem;
    line-height: 1.2;
}

@keyframes pulse {
    0% {
        box-shadow: -2px 2px 10px rgba(0,0,0,0.3);
    }
    50% {
        box-shadow: -2px 2px 15px rgba(0,0,0,0.5);
    }
    100% {
        box-shadow: -2px 2px 10px rgba(0,0,0,0.3);
    }
}

/* CTA区域 */
.cta-section {
    background: linear-gradient(135deg, #3498db, #8e44ad);
    color: white;
    padding: 50px;
    text-align: center;
    border-radius: 10px;
    margin: 40px 0;
}

.cta-section h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn {
    background: white;
    color: #3498db;
    font-weight: bold;
    padding: 15px 40px;
    font-size: 1.2rem;
}

.cta-section .btn:hover {
    background: #f8f9fa;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* 功能特点 */
.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
    position: relative;
    overflow: hidden;
}

.feature:hover {
    transform: translateY(-10px);
}

.feature h3 {
    color: #3498db;
    margin-bottom: 15px;
}

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

.testimonial {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    position: relative;
}

.rating {
    color: #f1c40f;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.testimonial p {
    font-style: italic;
    margin-bottom: 15px;
}

.author {
    font-weight: bold;
    text-align: right;
}

/* 价格 */
.pricing-container {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.pricing-card {
    flex: 1;
    min-width: 280px;
    max-width: 350px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid #eee;
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.pricing-card.featured {
    border-color: #3498db;
    transform: scale(1.05);
    z-index: 10;
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    color: #3498db;
    margin: 20px 0;
}

.price span {
    font-size: 1rem;
    color: #7f8c8d;
}

.pricing-card ul {
    list-style: none;
    margin: 30px 0;
    flex-grow: 1;
}

.pricing-card ul li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.pricing-card ul li:last-child {
    border-bottom: none;
}

.pricing-card .btn {
    margin-top: 20px;
    width: 100%;
}

.popular-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: #e74c3c;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

/* 响应式价格卡片 */
@media (max-width: 992px) {
    .pricing-container {
        flex-wrap: wrap;
    }
    
    .pricing-card {
        min-width: 250px;
        max-width: 100%;
    }
    
    .pricing-card.featured {
        transform: scale(1.02);
    }
    
    .pricing-card.featured:hover {
        transform: scale(1.02) translateY(-10px);
    }
}

@media (max-width: 768px) {
    .pricing-container {
        flex-direction: column;
        align-items: center;
    }
    
    .pricing-card {
        width: 100%;
        max-width: 400px;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .pricing-card.featured:hover {
        transform: scale(1) translateY(-10px);
    }
    
    .popular-badge {
        top: 10px;
        right: 20px;
        left: auto;
    }
}

/* 注意事项 */
.disclaimer-content ul {
    max-width: 800px;
    margin: 0 auto;
}

.disclaimer-content li {
    margin-bottom: 15px;
    padding: 10px;
    background: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* FAQ样式 */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.faq-question {
    width: 100%;
    background-color: #f8f9fa;
    padding: 20px;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    transition: background-color 0.3s;
}

.faq-question:hover {
    background-color: #e9ecef;
}

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

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

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
    background-color: white;
}

.faq-answer.show {
    padding: 20px;
    max-height: 500px;
}

.faq-answer ul, 
.faq-answer ol {
    margin: 10px 0 10px 30px;
}

.faq-answer li {
    margin-bottom: 8px;
}

.faq-answer p {
    margin-bottom: 15px;
}

/* 页脚 */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 50px 0 20px;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
}

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

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

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

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
}

/* FAQ预览区域 */
.faq-preview {
    margin-top: 50px;
    text-align: center;
}

.faq-preview h3 {
    color: #2c3e50;
    margin-bottom: 25px;
    font-size: 1.8rem;
}

.faq-preview-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.faq-preview-item a {
    display: block;
    padding: 15px 25px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    text-decoration: none;
    color: #3498db;
    font-weight: 500;
    transition: all 0.3s;
}

.faq-preview-item a:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.faq-all-link {
    margin-top: 20px;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #3498db;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 999;
    text-decoration: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

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

.back-to-top:hover {
    background: #2980b9;
}

/* 博客样式 */
.blog-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

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

.blog-post {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s;
}

.blog-post:hover {
    transform: translateY(-10px);
}

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

.blog-post-content {
    padding: 25px;
}

.blog-post-content h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 1.4rem;
}

.blog-post-meta {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.blog-post-content p {
    margin-bottom: 20px;
    line-height: 1.7;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 50px;
}

.current-page {
    font-weight: bold;
    font-size: 1.2rem;
}

/* 博客文章样式 */
#blog-post .container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.blog-post-content {
    flex: 3;
    min-width: 300px;
}

.blog-sidebar {
    flex: 1;
    min-width: 250px;
}

.blog-post-header h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #2c3e50;
}

.blog-post-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.blog-post-image {
    margin-bottom: 30px;
}

.blog-post-image img {
    width: 100%;
    border-radius: 10px;
}

.blog-post-body h2 {
    font-size: 1.8rem;
    margin: 30px 0 20px;
    color: #2c3e50;
}

.blog-post-body h3 {
    font-size: 1.4rem;
    margin: 25px 0 15px;
    color: #3498db;
}

.blog-post-body p {
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 1.1rem;
}

.blog-post-body ul,
.blog-post-body ol {
    margin-bottom: 20px;
    padding-left: 30px;
}

.blog-post-body li {
    margin-bottom: 10px;
    line-height: 1.7;
}

.tip-box {
    background: #e8f4fc;
    border-left: 4px solid #3498db;
    padding: 20px;
    margin: 25px 0;
    border-radius: 0 8px 8px 0;
}

.best-practices {
    background: #eafaea;
    border-left: 4px solid #2ecc71;
    padding: 20px;
    margin: 25px 0;
    border-radius: 0 8px 8px 0;
}

.blog-post-tags {
    margin: 30px 0;
}

.tag {
    display: inline-block;
    background: #ecf0f1;
    color: #7f8c8d;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-right: 10px;
    margin-bottom: 10px;
}

.tag:hover {
    background: #3498db;
    color: white;
    cursor: pointer;
}

.blog-post-navigation {
    display: flex;
    justify-content: space-between;
    padding: 20px 0;
    border-top: 1px solid #ecf0f1;
    border-bottom: 1px solid #ecf0f1;
    margin: 30px 0;
}

.sidebar-widget {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    padding: 25px;
    margin-bottom: 30px;
}

.sidebar-widget h3 {
    margin-top: 0;
    color: #2c3e50;
    font-size: 1.4rem;
}

.sidebar-widget ul {
    list-style: none;
    padding: 0;
}

.sidebar-widget li {
    padding: 10px 0;
    border-bottom: 1px solid #ecf0f1;
}

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

.sidebar-widget a {
    color: #7f8c8d;
    text-decoration: none;
    transition: color 0.3s;
}

.sidebar-widget a:hover {
    color: #3498db;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* 资源页面样式 */
.resources-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

.resources-container {
    margin-bottom: 50px;
}

.resource-category {
    margin-bottom: 50px;
}

.resource-category h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
    font-size: 2rem;
}

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

.resource-item {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s;
}

.resource-item:hover {
    transform: translateY(-10px);
}

.resource-item h3 {
    margin-bottom: 15px;
    color: #3498db;
    font-size: 1.5rem;
}

.resource-item p {
    margin-bottom: 20px;
    line-height: 1.7;
    color: #7f8c8d;
}

/* 资源详情样式 */
#resource-detail .container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.resource-content {
    flex: 3;
    min-width: 300px;
}

.resource-sidebar {
    flex: 1;
    min-width: 250px;
}

.resource-header h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #2c3e50;
}

.resource-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.resource-meta .category {
    background: #3498db;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
}

.resource-meta .difficulty {
    background: #2ecc71;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
}

.resource-meta .reading-time {
    background: #f39c12;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
}

.resource-image {
    margin-bottom: 30px;
}

.resource-image img {
    width: 100%;
    border-radius: 10px;
}

.resource-body h2 {
    font-size: 1.8rem;
    margin: 30px 0 20px;
    color: #2c3e50;
}

.resource-body h3 {
    font-size: 1.4rem;
    margin: 25px 0 15px;
    color: #3498db;
}

.resource-body p {
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 1.1rem;
}

.resource-body ul,
.resource-body ol {
    margin-bottom: 20px;
    padding-left: 30px;
}

.resource-body li {
    margin-bottom: 10px;
    line-height: 1.7;
}

.resource-tags {
    margin: 30px 0;
}

.resource-navigation {
    display: flex;
    justify-content: space-between;
    padding: 20px 0;
    border-top: 1px solid #ecf0f1;
    border-bottom: 1px solid #ecf0f1;
    margin: 30px 0;
}

.sidebar-widget ul {
    list-style: none;
    padding: 0;
}

.sidebar-widget li {
    padding: 10px 0;
    border-bottom: 1px solid #ecf0f1;
}

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

.sidebar-widget a {
    color: #7f8c8d;
    text-decoration: none;
    transition: color 0.3s;
}

.sidebar-widget a:hover {
    color: #3498db;
}

.sidebar-widget a.active {
    color: #3498db;
    font-weight: bold;
}

.sidebar-widget a.active:before {
    content: "▶ ";
}

/* 案例研究样式 */
.case-study-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

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

.case-study {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s;
}

.case-study:hover {
    transform: translateY(-10px);
}

.case-study-header {
    background: linear-gradient(135deg, #3498db, #8e44ad);
    color: white;
    padding: 25px;
}

.case-study-header h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.case-study-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    opacity: 0.9;
}

.case-study-content {
    padding: 25px;
}

.case-study-content p {
    margin-bottom: 15px;
    line-height: 1.7;
}

.case-study-content ul {
    margin: 15px 0 15px 30px;
}

.case-study-content li {
    margin-bottom: 10px;
}

.case-study-content blockquote {
    border-left: 4px solid #3498db;
    padding: 15px;
    margin: 20px 0;
    background: #f8f9fa;
    font-style: italic;
}

.case-study-content cite {
    display: block;
    margin-top: 10px;
    font-weight: bold;
    font-style: normal;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        background: white;
        position: absolute;
        top: 70px;
        left: -100%;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .cta-banner {
        padding: 10px 0;
    }
    
    .cta-banner p {
        display: block;
        margin-bottom: 10px;
    }
    
    .cta-banner .btn {
        margin-left: 0;
    }
    
    .floating-cta {
        bottom: 20px;
        right: 20px;
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .floating-cta-icon {
        font-size: 1.2rem;
    }
    
    .cta-section {
        padding: 30px 20px;
    }
    
    .cta-section h3 {
        font-size: 1.5rem;
    }
    
    .cta-section p {
        font-size: 1rem;
    }
}