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

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

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    padding: 2rem 0;
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    font-weight: 400;
}

/* 主要内容区域 */
.main {
    padding-bottom: 2rem;
}

.privacy-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

/* 章节样式 */
section {
    margin-bottom: 2.5rem;
}

section:last-child {
    margin-bottom: 0;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1rem;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
}

p {
    margin-bottom: 1rem;
    color: #4a5568;
    font-size: 1rem;
}

.last-updated {
    text-align: center;
    color: #718096;
    font-style: italic;
    margin-bottom: 2rem;
}

/* 高亮框 */
.highlight-box {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    margin: 1.5rem 0;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.highlight-box p {
    color: white;
    font-weight: 500;
    margin-bottom: 0;
}

/* 列表样式 */
ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
    color: #4a5568;
    position: relative;
}

li::before {
    content: "✓";
    color: #667eea;
    font-weight: bold;
    position: absolute;
    left: -1.5rem;
}

/* 链接样式 */
a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

a:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* 公司信息特殊样式 */
.company-info {
    background: #f7fafc;
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.company-info p {
    margin-bottom: 0.8rem;
}

.company-info strong {
    color: #2d3748;
    font-weight: 600;
}

/* 页脚样式 */
.footer {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    text-align: center;
    color: #718096;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .privacy-content {
        padding: 2rem 1.5rem;
        margin: 0 10px 2rem 10px;
    }
    
    .logo {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .header {
        padding: 1.5rem 0;
    }
}

@media (max-width: 480px) {
    .privacy-content {
        padding: 1.5rem 1rem;
        margin: 0 5px 2rem 5px;
    }
    
    .logo {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .highlight-box {
        padding: 1rem;
    }
}

/* 动画效果 */
.privacy-content {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* FAQ样式 */
.faq-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    border-left: 4px solid #667eea;
}

.faq-item h4 {
    color: #2d3748;
    font-weight: 600;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.faq-item p {
    color: #4a5568;
    margin-bottom: 0;
}

/* 故障排除样式 */
.troubleshooting-item {
    background: #fff5f5;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    border-left: 4px solid #f56565;
}

.troubleshooting-item h4 {
    color: #2d3748;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.troubleshooting-item ul {
    margin-left: 1.5rem;
}

.troubleshooting-item li {
    color: #4a5568;
    margin-bottom: 0.5rem;
}

.troubleshooting-item li::before {
    content: "•";
    color: #f56565;
    font-weight: bold;
    position: absolute;
    left: -1.5rem;
}

/* 系统要求网格 */
.requirements-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 1rem;
}

.requirement-item {
    background: #f0fff4;
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid #48bb78;
}

.requirement-item h4 {
    color: #2d3748;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.requirement-item ul {
    margin-left: 1.5rem;
}

.requirement-item li {
    color: #4a5568;
    margin-bottom: 0.5rem;
}

.requirement-item li::before {
    content: "✓";
    color: #48bb78;
    font-weight: bold;
    position: absolute;
    left: -1.5rem;
}

/* 联系支持样式 */
.contact-methods {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.contact-method {
    background: #edf2f7;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.contact-method h4 {
    color: #2d3748;
    font-weight: 600;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.contact-method p {
    color: #4a5568;
    margin-bottom: 0.5rem;
}

.support-tips {
    background: #fef5e7;
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 1.5rem;
    border-left: 4px solid #ed8936;
}

.support-tips h4 {
    color: #2d3748;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.support-tips ul {
    margin-left: 1.5rem;
}

.support-tips li {
    color: #4a5568;
    margin-bottom: 0.5rem;
}

.support-tips li::before {
    content: "→";
    color: #ed8936;
    font-weight: bold;
    position: absolute;
    left: -1.5rem;
}

/* 应用信息样式 */
.app-info {
    background: #e6fffa;
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid #38b2ac;
}

.app-info p {
    margin-bottom: 0.8rem;
    color: #4a5568;
}

.app-info strong {
    color: #2d3748;
    font-weight: 600;
}

/* 响应式设计更新 */
@media (max-width: 768px) {
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a67d8, #6b46c1);
}