/* 全局样式 */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* 导航栏样式 */
.navbar {
    background-color: white;
    box-shadow: none;
    padding: 1rem 0;
}

.navbar-brand img {
    max-height: 40px;
}

/* 主要内容区域 */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 4rem 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-section {
    text-align: center;
    padding: 2rem 0;
    color: white;
}

.hero-section h1, 
.hero-section p {
    color: white;
}

.logo-image {
    max-width: 200px;
    margin-bottom: 2rem;
}

.download-btn {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 30px;
    text-decoration: none;
    display: inline-block;
    margin-top: 2rem;
    transition: all 0.3s ease;
}

.download-btn:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

/* 页脚样式 */
.footer {
    background-color: white;
    color: #333;
    padding: 2rem 0;
    margin-top: auto;
}

.footer p {
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-content {
        padding: 2rem 0;
    }
    
    .hero-section {
        padding: 1rem;
    }
    
    .logo-image {
        max-width: 150px;
    }
}

/* 隐私政策和用户协议页面样式 */
.policy-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.policy-content h1 {
    margin-bottom: 2rem;
}

/* 删除账号页面样式 */
.delete-account {
    max-width: 600px;
    margin: 3rem auto;
    padding: 2rem;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}