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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

a {
    text-decoration: none;
    color: #0066cc;
}

ul {
    list-style: none;
}

h1, h2, h3 {
    margin-bottom: 15px;
    color: #222;
}

section {
    padding: 60px 0;
}

/* 头部样式 */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}
.logo{
    display: flex;
    flex-direction: row;
    align-items: center;
}

.logo>img{
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: black;
    margin: 0;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    font-weight: 500;
    transition: color 0.3s;
    color: black;
}

nav ul li a:hover {
    color: #004499;
}

/* 英雄区域样式 */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 80px 0;
}

.hero-content {
    flex: 1;
    padding-right: 40px;
}

.hero-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #862EFF;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #555;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
}

.btn {
    display: inline-block;
    background-color: #862EFF;
    color: white;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #5032A4;
}

/* 功能特点样式 */
.features {
    background-color: #fff;
    text-align: center;
}

.features h2 {
    font-size: 32px;
    margin-bottom: 40px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

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

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

/* 下载区域样式 */
.download {
    text-align: center;
    background-color: #f0f7ff;
    padding: 80px 0;
}

.download h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.download p {
    font-size: 18px;
    margin-bottom: 40px;
    color: #555;
}

.qr-container {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

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

.qr-code {
    width: 200px;
    height: 200px;
    margin: 0 auto 20px;
    background-color: #fff;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #eee;
}

.qr-item p {
    font-weight: 600;
    margin-bottom: 0;
}

/* 关于我们样式 */
.about {
    background-color: #fff;
    padding: 80px 0;
}

.about h2 {
    font-size: 32px;
    margin-bottom: 30px;
    text-align: center;
}

.about p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 页脚样式 */
footer {
    color: #fff;
    padding: 20px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 40px;
    width: 100%;
}

.footer-logo h3 {
    color: #fff;
    font-size: 24px;
    margin-bottom: 15px;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: #ccc;
    transition: color 0.3s;
}

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

.footer-contact p {
    color: #ccc;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    width: 100%;
}

.footer-bottom p {
    color: #999;
    font-size: 14px;
}



/* 响应式设计 */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }
    
    nav ul {
        margin-top: 20px;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 15px;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 40px 0;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    .qr-container {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        width: 100%;
    }
    
    .footer-logo, .footer-links, .footer-contact {
        margin-bottom: 30px;
        width: 100%;
    }
    
    .footer-bottom {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 40px 0;
    }
    
    .hero-content h2 {
        font-size: 32px;
    }
}