/* 文档页面布局 */
.docs-layout {
    display: grid;
    grid-template-columns: 280px 1fr 240px;
    gap: 0;
    min-height: calc(100vh - 4rem);
    margin-top: 4rem;
}

/* 侧边栏 */
.docs-sidebar {
    background: var(--glass-backdrop);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--glass-border);
    position: sticky;
    top: 4rem;
    height: calc(100vh - 4rem);
    overflow-y: auto;
    z-index: 100;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid var(--border-light);
}

.sidebar-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 0.25rem;
    cursor: pointer;
    padding: 0.5rem;
}

.sidebar-toggle span {
    width: 1.25rem;
    height: 2px;
    background: var(--text-secondary);
    transition: all 0.3s ease;
}

.sidebar-nav {
    padding: 0 1.5rem 2rem;
}

.nav-section {
    margin-bottom: 2rem;
}

.nav-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.nav-section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-section li {
    margin-bottom: 0.25rem;
}

.nav-item {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    line-height: 1.5;
    transition: all 0.2s ease;
    position: relative;
}

.nav-item:hover {
    color: var(--primary-green);
    background: var(--primary-green-pale);
}

.nav-item.active {
    color: var(--primary-green);
    background: var(--primary-green-pale);
    font-weight: 500;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 1.5rem;
    background: var(--primary-green);
    border-radius: 0 2px 2px 0;
}

/* 主内容区域 */
.docs-main {
    background: var(--background);
    min-height: calc(100vh - 4rem);
    position: relative;
}

.docs-content {
    max-width: none;
    padding: 3rem 3rem 4rem;
    margin: 0;
}

/* 文档内容样式 */
.docs-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 1rem;
}

.docs-content h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 3rem 0 1.5rem;
    position: relative;
}

.docs-content h2::before {
    content: '';
    position: absolute;
    left: -1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 2rem;
    background: linear-gradient(to bottom, var(--primary-green), var(--secondary-green));
    border-radius: 2px;
}

.docs-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2.5rem 0 1rem;
}

.docs-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2rem 0 1rem;
}

.docs-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.docs-content ul,
.docs-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.docs-content li {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

.docs-content blockquote {
    background: var(--primary-green-pale);
    border-left: 4px solid var(--primary-green);
    margin: 2rem 0;
    padding: 1rem 1.5rem;
    border-radius: 0 0.5rem 0.5rem 0;
}

.docs-content blockquote p {
    margin: 0;
    color: var(--text-primary);
}

/* 代码块样式 */
.docs-content pre {
    background: var(--background-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin: 2rem 0;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
}

.docs-content code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.docs-content p code,
.docs-content li code {
    background: var(--background-tertiary);
    color: var(--primary-green-dark);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-weight: 500;
}

/* 表格样式 */
.docs-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    border-radius: 0.75rem;
    overflow: hidden;
    border: 1px solid var(--border);
}

.docs-content th,
.docs-content td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.docs-content th {
    background: var(--background-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.docs-content td {
    color: var(--text-secondary);
}

/* 目录 */
.docs-toc {
    background: var(--glass-backdrop);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-left: 1px solid var(--glass-border);
    position: sticky;
    top: 4rem;
    height: calc(100vh - 4rem);
    overflow-y: auto;
    padding: 0;
}

.toc-header {
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid var(--border-light);
}

.toc-header h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.toc-nav {
    padding: 1rem 1.5rem 2rem;
}

.toc-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.toc-nav li {
    margin-bottom: 0.5rem;
}

.toc-nav a {
    display: block;
    color: var(--text-tertiary);
    text-decoration: none;
    font-size: 0.875rem;
    line-height: 1.5;
    padding: 0.25rem 0;
    transition: color 0.2s ease;
    border-left: 2px solid transparent;
    padding-left: 0.75rem;
}

.toc-nav a:hover,
.toc-nav a.active {
    color: var(--primary-green);
    border-left-color: var(--primary-green);
}

.toc-nav .toc-h3 {
    padding-left: 1.5rem;
    font-size: 0.8125rem;
}

.toc-nav .toc-h4 {
    padding-left: 2.25rem;
    font-size: 0.75rem;
}

/* 分页导航 */
.docs-pagination {
    display: flex;
    justify-content: space-between;
    padding: 2rem 3rem;
    border-top: 1px solid var(--border-light);
    margin-top: 4rem;
}

.pagination-prev,
.pagination-next {
    flex: 1;
    max-width: 50%;
}

.pagination-next {
    text-align: right;
}

.pagination-prev a,
.pagination-next a {
    display: block;
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.pagination-prev a:hover,
.pagination-next a:hover {
    background: var(--primary-green-pale);
    border-color: var(--primary-green);
    transform: translateY(-2px);
}

.pagination-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: 0.25rem;
}

.pagination-title {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
}

/* 加载状态 */
.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--border-light);
    border-top: 3px solid var(--primary-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    background: var(--primary-green);
    color: var(--text-inverse);
    border: none;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-green-dark);
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .docs-layout {
        grid-template-columns: 260px 1fr;
    }
    
    .docs-toc {
        display: none;
    }
    
    .docs-content {
        padding: 2rem;
    }
    
    .docs-pagination {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .docs-layout {
        grid-template-columns: 1fr;
    }
    
    .docs-sidebar {
        position: fixed;
        top: 4rem;
        left: 0;
        width: 280px;
        height: calc(100vh - 4rem);
        z-index: 200;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .docs-sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-toggle {
        display: flex;
    }
    
    .docs-content {
        padding: 1.5rem 1rem;
    }
    
    .docs-content h1 {
        font-size: 2rem;
    }
    
    .docs-content h2 {
        font-size: 1.5rem;
        margin: 2rem 0 1rem;
    }
    
    .docs-content h2::before {
        display: none;
    }
    
    .docs-pagination {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem 1rem;
    }
    
    .pagination-prev,
    .pagination-next {
        max-width: 100%;
        text-align: left;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 2.5rem;
        height: 2.5rem;
    }
}

@media (max-width: 480px) {
    .docs-content {
        padding: 1rem 0.75rem;
    }
    
    .docs-content h1 {
        font-size: 1.75rem;
    }
    
    .docs-content pre {
        padding: 1rem;
        font-size: 0.8125rem;
    }
    
    .docs-content table {
        font-size: 0.875rem;
    }
    
    .docs-content th,
    .docs-content td {
        padding: 0.75rem 0.5rem;
    }
}

/* 深色模式支持（媒体查询） */
@media (prefers-color-scheme: dark) {
    .docs-content pre {
        background: #1a1a1a;
        border-color: #333;
        color: #e5e5e5;
    }
    
    .docs-content p code,
    .docs-content li code {
        background: #2a2a2a;
        color: var(--primary-green-light);
    }
}

/* 打印样式 */
@media print {
    .docs-layout {
        grid-template-columns: 1fr;
    }
    
    .docs-sidebar,
    .docs-toc,
    .back-to-top,
    .docs-pagination {
        display: none;
    }
    
    .docs-content {
        padding: 0;
        max-width: 100%;
    }
    
    .docs-content h1,
    .docs-content h2,
    .docs-content h3,
    .docs-content h4 {
        color: #000;
    }
    
    .docs-content p,
    .docs-content li {
        color: #333;
    }
}