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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航板块 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    font-size: 1.8rem;
    font-weight: bold;
    color: #2d8cff;
    text-decoration: none;
}

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

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

.nav ul li a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav ul li a:hover {
    color: #2d8cff;
}

.header-actions .btn {
    margin-left: 1rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: #2d8cff;
    color: #fff;
}

.btn-primary:hover {
    background-color: #1a73e8;
}

.btn-secondary {
    background-color: #fff;
    color: #2d8cff;
    border: 1px solid #2d8cff;
}

.btn-secondary:hover {
    background-color: #f0f7ff;
}

/* 下载按钮样式 */
.downlbtnvmmn {
    background-color: #2d8cff;
    color: #fff;
    font-weight: 600;
    padding: 0.9rem 2rem;
    border-radius: 6px;
}

.downlbtnvmmn:hover {
    background-color: #1a73e8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(45, 140, 255, 0.3);
}

/* 首屏 */
.hero {
    background-color: #2d8cff;
    color: #fff;
    padding: 10rem 0 6rem;
    text-align: center;
    margin-top: 60px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons .btn {
    margin: 0 1rem;
    font-size: 1.1rem;
}

/* 产品分类版块 */
.products {
    padding: 6rem 0;
    background-color: #fff;
}

.products h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

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

.product-item {
    background-color: #f9f9f9;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.product-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2d8cff;
}

/* 版本更新板块 */
.updates {
    padding: 6rem 0;
    background-color: #f5f5f5;
}

.updates h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

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

.update-item {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid #2d8cff;
}

.update-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.update-item ul {
    list-style: disc;
    padding-left: 1.5rem;
}

.update-item ul li {
    margin-bottom: 0.5rem;
    color: #666;
}

/* 会员套餐板块 */
.pricing {
    padding: 6rem 0;
    background-color: #fff;
}

.pricing h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

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

.pricing-item {
    background-color: #f9f9f9;
    padding: 2.5rem 2rem;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
}

.pricing-item.featured {
    background-color: #2d8cff;
    color: #fff;
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(45, 140, 255, 0.3);
}

.pricing-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.pricing-item .price {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 2rem;
}

.pricing-item .price span {
    font-size: 1.2rem;
    font-weight: normal;
}

.pricing-item ul {
    list-style: none;
    margin-bottom: 2.5rem;
}

.pricing-item ul li {
    margin-bottom: 1rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.pricing-item.featured ul li {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.pricing-item .btn {
    width: 100%;
}

.pricing-item.featured .btn {
    background-color: #fff;
    color: #2d8cff;
}

.pricing-item.featured .btn:hover {
    background-color: #f0f7ff;
}

/* 常见问题预览板块 */
.faq-preview {
    padding: 6rem 0;
    background-color: #f5f5f5;
    text-align: center;
}

.faq-preview h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.faq-preview-list {
    max-width: 800px;
    margin: 0 auto 3rem;
}

.faq-item {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    text-align: left;
}

.faq-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2d8cff;
}

.faq-item p {
    color: #666;
}

/* 关于我们板块 */
.about {
    padding: 6rem 0;
    background-color: #fff;
    text-align: center;
}

.about h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #333;
}

.about p {
    max-width: 800px;
    margin: 0 auto 1.5rem;
    color: #666;
    font-size: 1.1rem;
}

/* 底部版权板块 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-logo a {
    font-size: 2rem;
    font-weight: bold;
    color: #2d8cff;
    text-decoration: none;
    margin-bottom: 2rem;
}

.footer-links ul {
    display: flex;
    list-style: none;
    margin-bottom: 2rem;
}

.footer-links ul li {
    margin: 0 1.5rem;
}

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

.footer-links ul li a:hover {
    color: #2d8cff;
}

.footer-copyright {
    color: #999;
    font-size: 0.9rem;
}

/* 专题页样式 */
.page-hero {
    background-color: #2d8cff;
    color: #fff;
    padding: 8rem 0 4rem;
    text-align: center;
    margin-top: 60px;
}

.page-hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.page-content {
    padding: 4rem 0;
    background-color: #fff;
}

.page-content h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #2d8cff;
}

.page-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #333;
    margin-top: 3rem;
}

.page-content p {
    margin-bottom: 1.5rem;
    color: #666;
    font-size: 1.1rem;
}

.page-content ul {
    list-style: disc;
    padding-left: 2rem;
    margin-bottom: 1.5rem;
}

.page-content ul li {
    margin-bottom: 0.5rem;
    color: #666;
}

/* 下载页面样式 */
.download-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.download-item {
    background-color: #f9f9f9;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
}

.download-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.download-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2d8cff;
}

/* 常见问题页面样式 */
.faq-section {
    max-width: 800px;
    margin: 0 auto;
}

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

/* 教程页面样式 */
.tutorial-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step-item {
    background-color: #f9f9f9;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    position: relative;
}

.step-item::before {
    content: attr(data-step);
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background-color: #2d8cff;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.step-item h3 {
    margin-top: 1rem;
    margin-bottom: 1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        padding: 1rem;
    }

    .nav ul {
        margin: 1rem 0;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav ul li {
        margin: 0 1rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-buttons .btn {
        display: block;
        margin: 1rem auto;
    }

    .products-grid,
    .updates-list,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-item.featured {
        transform: none;
    }

    .footer-links ul {
        flex-direction: column;
    }

    .footer-links ul li {
        margin: 0.5rem 0;
    }

    .page-hero h1 {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero {
        padding: 8rem 0 4rem;
    }

    .products,
    .updates,
    .pricing,
    .faq-preview,
    .about {
        padding: 4rem 0;
    }

    h2 {
        font-size: 2rem !important;
    }
}