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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

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

/* 通用样式 */
.section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1rem;
}

.btn-primary {
    background-color: #0066ff;
    color: white;
}

.btn-primary:hover {
    background-color: #0052d4;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 102, 255, 0.2);
}

.btn-outline {
    background-color: transparent;
    color: #0066ff;
    border-color: #0066ff;
}

.btn-outline:hover {
    background-color: #0066ff;
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 15px 35px;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* 导航栏 */
.header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: #0066ff;
    text-decoration: none;
}

.logo i {
    margin-right: 8px;
}

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

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

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 0;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #0066ff;
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #0066ff;
}

.nav-actions {
    display: flex;
    align-items: center;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #333;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, #f5f7ff 0%, #eef1ff 100%);
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    color: #1a1a1a;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.2rem;
    color: #555;
    margin-bottom: 30px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #0066ff;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
}

.hero-image {
    flex: 1;
    max-width: 500px;
    text-align: center;
}

.hero-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

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

.feature-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: #e6f0ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: #0066ff;
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1a1a1a;
}

.feature-description {
    color: #666;
    line-height: 1.6;
}

/* 核心优势 */
.advantages-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.advantages-image {
    flex: 1;
}

.advantages-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.advantages-list {
    flex: 1;
}

.advantage-item {
    display: flex;
    margin-bottom: 30px;
}

.advantage-icon {
    margin-right: 20px;
    color: #0066ff;
    font-size: 1.5rem;
}

.advantage-text h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.advantage-text p {
    color: #666;
}

/* 服务方案 */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pricing-card {
    background-color: white;
    border-radius: 10px;
    padding: 40px 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    position: relative;
    transition: transform 0.3s;
}

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

.pricing-card.featured {
    border: 2px solid #0066ff;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #0066ff;
    color: white;
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.plan-price {
    margin-bottom: 10px;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a1a1a;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #0066ff;
}

.period {
    font-size: 1rem;
    color: #666;
}

.plan-description {
    color: #666;
}

.plan-features {
    list-style: none;
    margin-bottom: 30px;
}

.plan-features li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.plan-features i {
    margin-right: 10px;
    color: #0066ff;
}

.plan-features .fa-times {
    color: #ccc;
}

/* 常见问题 */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: white;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
}

.faq-question i {
    color: #0066ff;
    transition: transform 0.3s;
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
}

.faq-item.active .faq-answer {
    padding: 0 30px 20px;
    max-height: 500px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* 页脚 */
.footer {
    background-color: #1a1a1a;
    color: #ccc;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.footer-description {
    margin: 15px 0;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #333;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    transition: background-color 0.3s;
}

.social-links a:hover {
    background-color: #0066ff;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

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

.footer-links a:hover {
    color: #0066ff;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.footer-contact i {
    margin-right: 10px;
    color: #0066ff;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #333;
    color: #888;
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 10px;
}

/* 下载页面特定样式 */
.page-header {
    padding: 100px 0 60px;
    background: linear-gradient(135deg, #f5f7ff 0%, #eef1ff 100%);
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.page-subtitle {
    font-size: 1.2rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.download-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.download-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.download-platform {
    padding: 30px;
    text-align: center;
    background: linear-gradient(135deg, #f5f7ff 0%, #eef1ff 100%);
}

.platform-icon {
    font-size: 3rem;
    color: #0066ff;
    margin-bottom: 15px;
}

.platform-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.platform-description {
    color: #666;
}

.download-info {
    padding: 20px 30px;
}

.version-info, .file-info {
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
}

.version-label, .file-size {
    color: #666;
}

.version-number {
    font-weight: 600;
    color: #0066ff;
}

.system-requirements h4 {
    margin-bottom: 10px;
    color: #1a1a1a;
}

.system-requirements ul {
    list-style: none;
    padding-left: 0;
}

.system-requirements li {
    margin-bottom: 8px;
    color: #666;
    position: relative;
    padding-left: 20px;
}

.system-requirements li::before {
    content: "•";
    color: #0066ff;
    position: absolute;
    left: 0;
}

.download-actions {
    padding: 0 30px 30px;
}

.store-badges {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.store-badge {
    display: flex;
    align-items: center;
    padding: 8px 15px;
    background-color: #f5f5f5;
    border-radius: 6px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: background-color 0.3s;
}

.store-badge:hover {
    background-color: #e0e0e0;
}

.store-badge i {
    margin-right: 8px;
    font-size: 1.2rem;
}

/* 安装指南 */
.guide-steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    margin-bottom: 40px;
    align-items: flex-start;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: #0066ff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-right: 20px;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1a1a1a;
}

.step-content p {
    color: #666;
}

/* 其他下载选项 */
.other-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.other-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.other-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.other-icon {
    font-size: 2.5rem;
    color: #0066ff;
    margin-bottom: 20px;
}

.other-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1a1a1a;
}

.other-card p {
    color: #666;
    margin-bottom: 20px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        margin-bottom: 50px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .advantages-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 10px 0;
    }
    
    .mobile-menu-btn {
        display: block;
        margin-left: 20px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
        margin-bottom: 10px;
    }
    
    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .step-number {
        margin-right: 0;
        margin-bottom: 15px;
    }
}

@media (max-width: 576px) {
    .section {
        padding: 60px 0;
    }
    
    .hero {
        padding: 80px 0 60px;
    }
    
    .pricing-grid,
    .downloads-grid,
    .other-grid {
        grid-template-columns: 1fr;
    }
}