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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(180deg, #e6f3ff 0%, #f0f8ff 50%, #ffffff 100%);
    min-height: 100vh;
}

/* 顶部导航 */
.top-nav {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 12px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.nav-left .logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #333;
}

.logo-icon {
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: #4a90e2;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-link {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: #4a90e2;
}

.nav-divider {
    color: #ddd;
    font-size: 12px;
}

/* 版本提示 */
.version-notice {
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 8px 0;
    text-align: center;
    font-size: 12px;
    color: #666;
    margin-top: 60px;
}

/* 主要内容区域 */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero区域 */
.hero-section {
    text-align: center;
    padding: 120px 0 80px;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    color: #4a90e2;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: 20px;
    color: #666;
    margin-bottom: 48px;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-button {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.hero-button.primary {
    background: #4a90e2;
    color: white;
    border: 1px solid #4a90e2;
}

.hero-button.primary:hover {
    background: #357abd;
    border-color: #357abd;
}

.hero-button.secondary {
    background: white;
    color: #4a90e2;
    border: 1px solid #e1e8ed;
}

.hero-button.secondary:hover {
    background: #f8f9fa;
    border-color: #4a90e2;
}

/* 微信小程序二维码区域 */
.qr-section {
    padding: 80px 0;
    text-align: center;
}

.qr-container {
    max-width: 400px;
    margin: 0 auto;
}

.qr-code {
    margin-bottom: 24px;
}



.qr-image {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    display: block;
    margin: 0 auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
}





/* 底部区域 */
.footer {
    background: #f8f9fa;
    border-top: 1px solid #e1e8ed;
    padding: 40px 0;
    margin-top: 80px;
}

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

.footer-copyright {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.footer-icp {
    margin: 8px 0;
}

.footer-icp a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
}

.footer-icp a:hover {
    color: #4a90e2;
}

.footer-beian {
    margin: 8px 0;
}

.footer-beian a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.footer-beian a:hover {
    color: #4a90e2;
}

.beian-icon {
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 16px;
    }
    
    .nav-right {
        gap: 12px;
    }
    
    .nav-link {
        font-size: 13px;
    }
    
    .main-content {
        padding: 0 16px;
    }
    
    .hero-section {
        padding: 80px 0 60px;
    }
    
    .hero-title {
        font-size: 40px;
        letter-spacing: -1px;
    }
    
    .hero-subtitle {
        font-size: 16px;
        margin-bottom: 32px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    .qr-section {
        padding: 60px 0;
    }
    
    .qr-container {
        max-width: 320px;
        padding: 0 16px;
    }
    

    
    .qr-image {
        width: 160px;
        height: 160px;
    }
    

    
    .footer {
        padding: 32px 0;
        margin-top: 60px;
    }
    
    .footer-container {
        padding: 0 16px;
    }
    
    .footer-copyright {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .features-section h2,
    .scenarios-section h2,
    .download-content h2 {
        font-size: 1.8rem;
    }
    
    .feature-card,
    .scenario-card {
        padding: 30px 20px;
    }
    
    .qr-placeholder {
        padding: 40px 20px;
    }
}