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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background-color: #F6F6F6;
    padding: 2rem 0;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    color: #07C160;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.2rem;
    color: #666;
}

/* 主体内容样式 */
main {
    min-height: calc(100vh - 200px);
}

/* 英雄区域样式 */
.hero {
    text-align: center;
    padding: 3rem 0;
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
}

.hero p {
    font-size: 1.1rem;
    color: #666;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.qrcode-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 2rem;
}

.qrcode {
    width: 200px;
    height: 200px;
    margin-bottom: 1rem;
}

/* 功能特性区域样式 */
.features {
    padding: 3rem 0;
    background-color: #f9f9f9;
}

.features h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #333;
}

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

.feature-card {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #07C160;
}

.feature-card p {
    color: #666;
    margin-bottom: 1rem;
    font-weight: bold;
}

.feature-card ul {
    list-style-type: none;
    padding-left: 0;
}

.feature-card li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: #555;
}

.feature-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #07C160;
    font-weight: bold;
}

/* 下载区域样式 */
.download {
    padding: 3rem 0;
    text-align: center;
    background-color: #07C160;
    color: white;
}

.download h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.download p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

/* 底部样式 */
footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1.5rem 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .features h2 {
        font-size: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .qrcode {
        width: 150px;
        height: 150px;
    }
    
    .feature-card h3 {
        font-size: 1.3rem;
    }
}