/* Confluence风格的样式设计 */
:root {
    --primary-color: #0052cc;
    --sidebar-bg: #f4f5f7;
    --sidebar-hover: #e4e6ea;
    --topbar-bg: #0052cc;
    --topbar-text: #ffffff;
    --content-bg: #ffffff;
    --text-color: #172b4d;
    --text-secondary: #6b778c;
    --border-color: #dfe1e6;
    --code-bg: #f4f5f7;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--content-bg);
    line-height: 1.6;
}

/* 顶部导航栏 */
.top-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background-color: var(--topbar-bg);
    color: var(--topbar-text);
    display: flex;
    align-items: center;
    padding: 0 24px;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

.top-navbar .site-title {
    font-size: 18px;
    font-weight: 600;
    margin-left: 10px;
}

/* 侧边导航栏 */
.sidebar {
    position: fixed;
    left: 0;
    top: 56px;
    bottom: 0;
    width: 280px;
    background-color: var(--sidebar-bg);
    overflow-y: auto;
    overflow-x: hidden;
    border-right: 1px solid var(--border-color);
    z-index: 900;
}

.sidebar::-webkit-scrollbar {
    width: 8px;
}

.sidebar::-webkit-scrollbar-track {
    background: var(--sidebar-bg);
}

.sidebar::-webkit-scrollbar-thumb {
    background: #c1c7d0;
    border-radius: 4px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: #a5adba;
}

.nav-tree {
    list-style: none;
    padding: 10px 0;
}

.nav-item {
    margin: 2px 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    color: var(--text-color);
    user-select: none;
    transition: background-color 0.2s;
    border-radius: 3px;
    margin: 0 8px;
}

.nav-link:hover {
    background-color: var(--sidebar-hover);
}

.nav-link.active {
    background-color: #deebff;
}

.nav-link.active .nav-link-text {
    color: var(--primary-color);
    font-weight: 500;
}

.nav-link.has-children {
    font-weight: 500;
}

.nav-link .nav-link-text {
    color: inherit;
    text-decoration: none;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
    padding: 2px 0;
}

.nav-link.active .nav-link-text {
    color: var(--primary-color);
}

.nav-link-icon {
    width: 20px;
    height: 20px;
    margin-right: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 3px;
    transition: transform 0.15s ease, background-color 0.15s ease;
    flex-shrink: 0;
    color: #6b778c;
    font-size: 12px;
    user-select: none;
}

.nav-link-icon[data-toggle="collapse"] {
    cursor: pointer;
}

.nav-link-icon[data-toggle="collapse"]:hover {
    background-color: var(--sidebar-hover);
}

.nav-link-icon[data-toggle="collapse"]::before {
    content: '▶';
    display: inline-block;
    transition: transform 0.15s ease;
}

.nav-link-icon[data-toggle="collapse"].expanded::before {
    transform: rotate(90deg);
}


.nav-children {
    list-style: none;
    padding-left: 20px;
    display: none;
    margin-top: 2px;
}

.nav-children.expanded {
    display: block;
}

/* 主内容区 */
.main-content {
    margin-left: 280px;
    margin-top: 56px;
    padding: 30px 40px;
    max-width: 1200px;
    min-height: calc(100vh - 56px);
}

.content-body {
    background-color: var(--content-bg);
    padding: 30px;
    border-radius: 3px;
}

/* Markdown 内容样式 */
.content-body h1 {
    font-size: 32px;
    margin-top: 0;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-color);
}

.content-body h2 {
    font-size: 24px;
    margin-top: 32px;
    margin-bottom: 12px;
}

.content-body h3 {
    font-size: 20px;
    margin-top: 24px;
    margin-bottom: 10px;
}

.content-body h4 {
    font-size: 16px;
    margin-top: 20px;
    margin-bottom: 8px;
}

.content-body p {
    margin-bottom: 16px;
}

.content-body ul,
.content-body ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.content-body li {
    margin-bottom: 8px;
}

.content-body code {
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.9em;
}

.content-body pre {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 16px;
    overflow-x: auto;
    margin-bottom: 16px;
}

.content-body pre code {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
}

.content-body blockquote {
    border-left: 3px solid var(--primary-color);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--text-secondary);
}

.content-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
}

.content-body th,
.content-body td {
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    text-align: left;
}

.content-body th {
    background-color: var(--sidebar-bg);
    font-weight: 600;
}

.content-body img {
    max-width: 100%;
    height: auto;
    border-radius: 3px;
    margin: 16px 0;
}

.content-body a {
    color: var(--primary-color);
    text-decoration: none;
}

.content-body a:hover {
    text-decoration: underline;
}

/* 代码高亮 */
.hljs {
    background: var(--code-bg) !important;
    padding: 0 !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        width: 240px;
    }
    
    .main-content {
        margin-left: 240px;
        padding: 20px;
    }
}

@media (max-width: 640px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
}