/* 隐私政策页面样式 */

/* Hero 区域 */
.policy-hero {
    padding: 80px 0 60px;
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #334155 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.policy-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.policy-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #2563EB 0%, #3B82F6 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.3);
}

.policy-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.policy-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 24px;
}

.policy-meta {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.policy-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.policy-meta i {
    font-size: 1rem;
}

/* 快速导航 */
.policy-nav {
    padding: 40px 0;
    background: var(--ultra-light-gray);
    border-bottom: 1px solid var(--border-light);
}

.policy-nav-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.policy-nav-content h3 i {
    color: var(--tech-blue);
}

.policy-nav-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.policy-nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.policy-nav-link:hover {
    background: var(--tech-blue);
    color: white;
    border-color: var(--tech-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.policy-nav-link:hover i {
    color: white;
}

.policy-nav-link i {
    font-size: 0.875rem;
    color: var(--tech-blue);
    transition: var(--transition-fast);
}

/* 主要内容区域 */
.policy-content {
    padding: 60px 0 80px;
    background: white;
}

.policy-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
    align-items: start;
}

/* 侧边栏 */
.policy-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-sticky {
    background: var(--ultra-light-gray);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border-light);
}

.sidebar-sticky h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.policy-toc {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.toc-link {
    padding: 10px 12px;
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    border-left: 3px solid transparent;
}

.toc-link:hover {
    background: white;
    color: var(--text-dark);
    border-left-color: var(--tech-blue);
}

.toc-link.active {
    background: white;
    color: var(--tech-blue);
    font-weight: 600;
    border-left-color: var(--tech-blue);
}

/* 主要内容 */
.policy-main {
    max-width: 900px;
}

.policy-section {
    margin-bottom: 48px;
    scroll-margin-top: 100px;
}

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

.policy-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border-light);
}

.policy-section h2 i {
    color: var(--tech-blue);
    font-size: 1.5rem;
}

.policy-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 24px 0 16px;
}

.policy-text {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--text-gray);
}

.policy-text p {
    margin-bottom: 16px;
}

.policy-text ul,
.policy-text ol {
    margin: 16px 0;
    padding-left: 28px;
}

.policy-text li {
    margin-bottom: 12px;
    line-height: 1.8;
}

.policy-text strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* 高亮提示框 */
.policy-highlight {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    border-left: 4px solid #F59E0B;
    border-radius: var(--radius-sm);
    padding: 20px 24px;
    margin: 24px 0;
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.policy-highlight i {
    font-size: 1.5rem;
    color: #F59E0B;
    flex-shrink: 0;
    margin-top: 2px;
}

.policy-highlight p {
    margin: 0;
    color: #92400E;
    line-height: 1.7;
}

/* 提示框 */
.policy-note {
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    border-left: 4px solid var(--tech-blue);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    margin: 20px 0;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.policy-note i {
    font-size: 1.25rem;
    color: var(--tech-blue);
    flex-shrink: 0;
    margin-top: 2px;
}

.policy-note p {
    margin: 0;
    color: #1E40AF;
    font-size: 0.875rem;
    line-height: 1.6;
}

/* 联系卡片 */
.contact-card {
    background: linear-gradient(135deg, #F5F5F7 0%, #E5E5E7 100%);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-top: 32px;
    border: 1px solid var(--border-light);
}

.contact-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: white;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.contact-item i {
    font-size: 1.25rem;
    color: var(--tech-blue);
    width: 24px;
    text-align: center;
}

.contact-item span {
    font-size: 0.9375rem;
    color: var(--text-dark);
}

.contact-item a {
    color: var(--tech-blue);
    text-decoration: none;
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .policy-layout {
        grid-template-columns: 1fr;
    }

    .policy-sidebar {
        position: relative;
        top: 0;
        order: -1;
    }

    .sidebar-sticky {
        max-height: 400px;
        overflow-y: auto;
    }
}

@media (max-width: 768px) {
    .policy-hero {
        padding: 60px 0 40px;
    }

    .policy-hero h1 {
        font-size: 2rem;
    }

    .policy-subtitle {
        font-size: 1rem;
    }

    .policy-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }

    .policy-meta {
        flex-direction: column;
        gap: 12px;
    }

    .policy-nav-links {
        grid-template-columns: 1fr;
    }

    .policy-content {
        padding: 40px 0 60px;
    }

    .policy-layout {
        gap: 32px;
    }

    .policy-section h2 {
        font-size: 1.5rem;
    }

    .policy-section h3 {
        font-size: 1.125rem;
    }

    .sidebar-sticky {
        padding: 16px;
    }

    .contact-card {
        padding: 24px 20px;
    }
}

@media (max-width: 480px) {
    .policy-hero h1 {
        font-size: 1.75rem;
    }

    .policy-section h2 {
        font-size: 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .policy-highlight,
    .policy-note {
        flex-direction: column;
        gap: 12px;
    }

    .policy-text ul,
    .policy-text ol {
        padding-left: 20px;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--tech-blue) 0%, #1E40AF 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 30px rgba(37, 99, 235, 0.6);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 页脚样式 - 与主页保持一致 */
footer {
    background: var(--bg-secondary);
    padding: 60px 0 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo h3 {
    font-size: 21px;
    font-weight: 600;
    letter-spacing: 0.011em;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.footer-logo p {
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: -0.016em;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-link-group h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.footer-link-group ul {
    list-style: none;
    padding: 0;
}

.footer-link-group li {
    margin-bottom: 12px;
}

.footer-link-group a {
    font-size: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    letter-spacing: -0.01em;
}

.footer-link-group a:hover {
    color: var(--text-primary);
}

.footer-social h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-icons a {
    width: 32px;
    height: 32px;
    background: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
    font-size: 14px;
}

.social-icons a:hover {
    background: var(--apple-blue);
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
}

/* 打印样式 */
@media print {
    .navbar,
    .policy-nav,
    .policy-sidebar,
    .back-to-top,
    footer {
        display: none;
    }

    .policy-layout {
        grid-template-columns: 1fr;
    }

    .policy-section {
        page-break-inside: avoid;
    }
}

/* 响应式 - 页脚 */
@media (max-width: 1068px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.125rem;
    }
    
    footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        gap: 30px;
    }
}