/* 全局样式 */
body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    position: relative;
    min-height: 100vh;
}

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

.content {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 80px;
}

/* 标题样式 */
h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5em;
}

h2 {
    color: #34495e;
    margin-top: 30px;
    margin-bottom: 20px;
    font-size: 1.8em;
}

h3 {
    color: #2c3e50;
    margin-top: 25px;
    margin-bottom: 15px;
    font-size: 1.4em;
}

/* 段落和列表样式 */
p {
    margin-bottom: 15px;
    line-height: 1.8;
}

ul, ol {
    margin-bottom: 20px;
    padding-left: 25px;
}

li {
    margin-bottom: 10px;
}

/* 章节样式 */
.policy-section {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.policy-section:last-child {
    border-bottom: none;
}

/* 地址样式 */
address {
    font-style: normal;
    margin: 20px 0;
    padding: 15px;
    background-color: #f8f9fa;
    border-left: 4px solid #007bff;
    line-height: 1.8;
}

/* 返回顶部按钮 */
#back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #007bff;
    color: white;
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    border: none;
    font-size: 20px;
    transition: background-color 0.3s;
    z-index: 1000;
}

#back-to-top:hover {
    background-color: #0056b3;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .content {
        padding: 20px;
        margin-bottom: 100px;
    }

    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.5em;
    }

    h3 {
        font-size: 1.2em;
    }
    
    .site-footer {
        padding: 0.4rem 15px;
        font-size: 0.8rem;
    }
}

/* 链接样式 */
a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #0056b3;
    text-decoration: underline;
}