/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-top: 20px;
    margin-bottom: 20px;
}

/* 头部样式 */
.header {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    text-align: center;
    padding: 60px 20px;
    position: relative;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.subtitle {
    font-size: 1.2em;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* 内容区域 */
.content {
    padding: 40px;
}

.intro-section {
    margin-bottom: 40px;
}

.intro-text {
    font-size: 1.1em;
    margin-bottom: 20px;
    color: #555;
}

.important-notice {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    padding: 20px;
    border-radius: 10px;
    border-left: 5px solid #ff6b6b;
    margin: 20px 0;
}

/* 政策章节 */
.policy-section {
    margin-bottom: 40px;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

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

.policy-section h2 {
    color: #2c3e50;
    font-size: 1.8em;
    margin-bottom: 20px;
    position: relative;
    padding-left: 20px;
}

.policy-section h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.policy-section h3 {
    color: #34495e;
    font-size: 1.3em;
    margin: 25px 0 15px 0;
}

.policy-section p {
    margin-bottom: 15px;
    color: #555;
    line-height: 1.7;
}

.policy-section ul {
    margin: 15px 0;
    padding-left: 20px;
}

.policy-section li {
    margin-bottom: 8px;
    color: #555;
}

/* 数据列表样式 */
.data-list {
    display: grid;
    gap: 15px;
    margin: 20px 0;
}

.data-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #4facfe;
    transition: transform 0.2s ease;
}

.data-item:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.data-icon {
    font-size: 1.5em;
    margin-right: 15px;
    min-width: 30px;
}

/* 高亮框 */
.highlight-box {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    padding: 25px;
    border-radius: 10px;
    margin: 20px 0;
}

.highlight-box h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.2em;
}

/* 安全功能 */
.security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.security-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: #f1f3f4;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.security-item:hover {
    background: #e8f5e8;
    transform: translateY(-2px);
}

.security-icon {
    font-size: 1.5em;
    margin-right: 10px;
}

/* 信息网格 */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.info-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border-top: 4px solid #4facfe;
    transition: transform 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.info-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.1em;
}

/* 联系部分 */
.contact-section {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    margin-top: 40px;
}

.contact-section h2 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.1em;
}

.contact-icon {
    font-size: 1.3em;
}

.contact-info a {
    color: #2c3e50;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: #3498db;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 30px;
}

.footer p {
    margin-bottom: 5px;
}

.last-updated {
    opacity: 0.7;
    font-size: 0.9em;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        border-radius: 0;
    }
    
    .header {
        padding: 40px 20px;
    }
    
    .header h1 {
        font-size: 2em;
    }
    
    .content {
        padding: 20px;
    }
    
    .policy-section h2 {
        font-size: 1.5em;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .security-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8em;
    }
    
    .subtitle {
        font-size: 1em;
    }
    
    .content {
        padding: 15px;
    }
}