* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f8f9fa;
    color: #2c3e50;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    margin-bottom: 3rem;
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

/* 头部区域 */
.header-section {
    text-align: center;
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
}

.logo {
    width: 120px;
    height: 120px;
    margin-bottom: 1.5rem;
    border-radius: 20px;
}

h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: #1a202c;
}

.subtitle {
    color: #4a5568;
    font-size: 1.4rem;
    font-weight: 500;
}

/* 功能特色区域 */
.features-section {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 3rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 12px;
    transition: transform 0.2s ease;
}

.feature-item:hover {
    transform: translateY(-2px);
}

.feature-item img {
    width: 64px;
    height: 64px;
}

.feature-text {
    flex: 1;
}

.feature-text h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: #2d3748;
}

.feature-text p {
    color: #4a5568;
    font-size: 1.1rem;
}

/* 下载区域 */
.download-section {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.download-card {
    text-align: center;
    padding: 2.5rem;
    border-radius: 16px;
    background: #f8f9fa;
    width: 320px;
    transition: transform 0.2s ease;
}

.download-card:hover {
    transform: translateY(-2px);
}

.platform-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
}

.qr-code img {
    width: 200px;
    height: 200px;
    margin: 1.5rem 0;
    border-radius: 12px;
}

.coming-soon {
    opacity: 0.7;
}

.coming-soon-text {
    color: #4a5568;
    font-style: italic;
}

/* 关于我们区域 */
.about-section {
    text-align: center;
}

.about-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #1a202c;
}

.about-section p {
    font-size: 1.1rem;
    color: #4a5568;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.contact-info {
    margin: 2.5rem 0;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.footer-info {
    margin-top: 2.5rem;
    color: #718096;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    section {
        padding: 2rem;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .download-section {
        flex-direction: column;
        align-items: center;
    }
    
    .download-card {
        width: 100%;
    }

    h1 {
        font-size: 2.2rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }
} 

/* 在现有样式基础上添加以下内容 */

.intro-text {
    margin-top: 1.5rem;
    color: #4a5568;
}

.intro-text p {
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header h2 {
    font-size: 2rem;
    color: #1a202c;
    margin-bottom: 0.5rem;
}

.section-header p {
    color: #4a5568;
    font-size: 1.1rem;
}

.feature-list {
    margin-top: 1rem;
    list-style: none;
}

.feature-list li {
    color: #4a5568;
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li::before {
    content: "•";
    color: #4299e1;
    position: absolute;
    left: 0;
}

.download-cards {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.version-info {
    margin-top: 1rem;
    color: #718096;
    font-size: 0.9rem;
}

.service-commitment {
    margin: 2rem 0;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.service-commitment h3 {
    color: #2d3748;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.service-commitment ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.service-commitment li {
    background: white;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    color: #4a5568;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.main-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 2rem;
}

.contact-info h3 {
    color: #2d3748;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .service-commitment ul {
        flex-direction: column;
        align-items: center;
    }
    
    .service-commitment li {
        width: 100%;
        text-align: center;
    }
} 

/* APP展示区域 */
.app-showcase {
    overflow: hidden;
}

.showcase-images {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.showcase-item {
    flex: 1;
    min-width: 280px;
    max-width: 350px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.showcase-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .showcase-item {
        min-width: 100%;
    }
    
    .showcase-images {
        gap: 1.5rem;
    }
}