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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* 页面容器 */
#targetDiv {
    width: 100%;
    min-height: 100vh;
    background-color: #f5f5f5;
}

/* 头部导航样式 */
.header {
    background-color: #2c3e50;
    color: #fff;
    padding: 1rem 0;
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

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

.nav-links li {
    margin-left: 2rem;
}

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

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

/* 首屏样式 */
.hero {
    background-color: #3498db;
    color: #fff;
    padding: 6rem 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: #2ecc71;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #27ae60;
}

/* 下载按钮特殊样式 */
.downlbtnvmmn {
    background-color: #e74c3c;
    font-weight: bold;
}

.downlbtnvmmn:hover {
    background-color: #c0392b;
}

/* 通用板块样式 */
section {
    padding: 4rem 0;
    text-align: center;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 产品分类样式 */
.products {
    background-color: #fff;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.product-item {
    padding: 2rem;
    background-color: #f5f5f5;
    border-radius: 8px;
}

.product-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* 功能介绍样式 */
.features {
    background-color: #f5f5f5;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto 2rem;
}

.feature-item {
    padding: 2rem;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.feature-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* 优势介绍样式 */
.advantages {
    background-color: #fff;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.advantage-item {
    padding: 2rem;
    background-color: #f5f5f5;
    border-radius: 8px;
}

.advantage-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* 会员套餐样式 */
.membership {
    background-color: #f5f5f5;
}

.membership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.membership-item {
    padding: 2rem;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.membership-item h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    color: #e74c3c;
    margin-bottom: 1.5rem;
}

.price span {
    font-size: 1rem;
    font-weight: normal;
    color: #666;
}

.membership-item ul {
    list-style: none;
    margin-bottom: 2rem;
}

.membership-item li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}

.membership-item li:before {
    content: "✓";
    color: #2ecc71;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 产品介绍样式 */
.product-intro {
    background-color: #fff;
}

.intro-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: 3rem;
    padding: 0 2rem;
}

.intro-text {
    flex: 1;
    min-width: 300px;
    text-align: left;
}

.intro-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.intro-text p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: #555;
}

.intro-image {
    flex: 1;
    min-width: 300px;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 常见问题预览样式 */
.faq-preview {
    background-color: #f5f5f5;
}

.faq-items {
    max-width: 800px;
    margin: 0 auto 2rem;
}

.faq-item {
    padding: 1rem;
    background-color: #fff;
    margin-bottom: 1rem;
    border-radius: 8px;
    text-align: left;
}

.faq-item h3 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

/* 底部样式 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 2rem 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.footer-links {
    margin-bottom: 1rem;
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    margin: 0 1rem;
    transition: color 0.3s ease;
}

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

/* 下载页面样式 */
.download-page {
    background-color: #fff;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.download-item {
    padding: 2rem;
    background-color: #f5f5f5;
    border-radius: 8px;
}

.download-item h2 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* 常见问题页面样式 */
.faq-page {
    background-color: #fff;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-list .faq-item {
    margin-bottom: 2rem;
}

.faq-list h2 {
    text-align: left;
    margin-bottom: 1rem;
}

/* 功能介绍页面样式 */
.features-page {
    background-color: #fff;
}

.features-list {
    max-width: 800px;
    margin: 0 auto 2rem;
}

.feature-detail {
    margin-bottom: 2rem;
    text-align: left;
}

.feature-detail h2 {
    margin-bottom: 1rem;
    text-align: left;
}

/* 使用教程页面样式 */
.tutorial-page {
    background-color: #fff;
}

.tutorial-section {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: left;
}

.tutorial-section h2 {
    margin-bottom: 1.5rem;
    text-align: left;
}

.tutorial-section h3 {
    margin: 1.5rem 0 1rem;
    color: #2c3e50;
}

.tutorial-section ul,
.tutorial-section ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.tutorial-section li {
    margin-bottom: 0.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        padding: 1rem;
    }
    
    .nav-links {
        margin-top: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-links li {
        margin: 0 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    section {
        padding: 2rem 1rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    /* 产品分类响应式 */
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    /* 产品介绍响应式 */
    .intro-content {
        flex-direction: column;
        gap: 2rem;
        padding: 0 1rem;
    }
    
    .intro-text {
        text-align: center;
    }
}