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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f8f8;
}

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

/* 导航栏 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #ff6b6b;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-size: 18px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #ff6b6b;
}

/* 英雄区域 */
.hero {
    margin-top: 80px;
    padding: 80px 0;
    background-color: #fff;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-content p {
    font-size: 20px;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.5;
}

.download-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary {
    display: inline-block;
    padding: 15px 30px;
    background-color: #ff6b6b;
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    background-color: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    background-color: #fff;
    color: #ff6b6b;
    text-decoration: none;
    border: 2px solid #ff6b6b;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #ff6b6b;
    color: #fff;
    transform: translateY(-2px);
}

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

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* 功能介绍 */
.features {
    padding: 100px 0;
    background-color: #f8f8f8;
}

.features h2 {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    text-align: center;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-item {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.feature-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fff3f3;
    border-radius: 50%;
}

.feature-icon img {
    width: 60px;
    height: 60px;
}

.feature-item h3 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}

.feature-item p {
    font-size: 16px;
    color: #666;
    line-height: 1.5;
}

/* 应用展示 */
.app-showcase {
    padding: 100px 0;
    background-color: #fff;
}

.app-showcase h2 {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    text-align: center;
    margin-bottom: 60px;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

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

.showcase-item img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
}

.showcase-item img:hover {
    transform: scale(1.02);
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background-color: #ff6b6b;
    color: #fff;
}

.download .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.download-content {
    flex: 1;
}

.download-content h2 {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 20px;
}

.download-content p {
    font-size: 18px;
    margin-bottom: 40px;
    line-height: 1.5;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 400px;
}

.btn-app {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background-color: #fff;
    color: #333;
    text-decoration: none;
    border-radius: 15px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.btn-app:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.app-icon {
    font-size: 36px;
}

.app-text {
    display: flex;
    flex-direction: column;
}

.app-store {
    font-size: 14px;
    color: #666;
}

.app-download {
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.download-qr {
    flex: 1;
    text-align: center;
}

.download-qr img {
    max-width: 200px;
    height: auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.download-qr p {
    margin-top: 20px;
    font-size: 18px;
    font-weight: 500;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background-color: #f8f8f8;
}

.about h2 {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    text-align: center;
    margin-bottom: 40px;
}

.about p {
    font-size: 18px;
    color: #666;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 20px;
    line-height: 1.6;
}

/* 页脚 */
.footer {
    padding: 60px 0 30px;
    background-color: #333;
    color: #fff;
}

.footer .container {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-logo {
    font-size: 24px;
    font-weight: bold;
    color: #ff6b6b;
}

.footer-links {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    text-decoration: none;
    color: #ccc;
    font-size: 16px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #ff6b6b;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.footer-social a {
    text-decoration: none;
    color: #ccc;
    font-size: 16px;
    transition: color 0.3s ease;
}

.footer-social a:hover {
    color: #ff6b6b;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    font-size: 14px;
    color: #999;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .download .container {
        flex-direction: column;
        text-align: center;
    }
    
    .download-buttons {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }
    
    .nav-links {
        gap: 20px;
    }
    
    .hero {
        margin-top: 120px;
        padding: 60px 0;
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
    
    .features {
        padding: 80px 0;
    }
    
    .features h2 {
        font-size: 32px;
    }
    
    .app-showcase {
        padding: 80px 0;
    }
    
    .download {
        padding: 80px 0;
    }
    
    .about {
        padding: 80px 0;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .showcase-grid {
        grid-template-columns: 1fr;
    }
}