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

:root {
    --bg-color: #ffffff;
    --sidebar-bg: #f8f9fa;
    --text-color: #333;
    --link-color: #2563eb;
    --border-color: #e5e7eb;
    --header-bg: #ffffff;
    --header-border: #e5e7eb;
}

/* 暗色模式 - 使用:root确保优先级 */
:root[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --sidebar-bg: #2d2d2d;
    --text-color: #e5e5e5;
    --link-color: #60a5fa;
    --border-color: #404040;
    --header-bg: #1a1a1a;
    --header-border: #404040;
}

[data-theme="dark"] .search-input {
    background: #2d2d2d;
    border-color: #404040;
    color: #e5e5e5;
}

[data-theme="dark"] .search-input:focus {
    background: #2d2d2d;
    border-color: #60a5fa;
}

[data-theme="dark"] .header-nav a:hover {
    background: #2d2d2d;
}

[data-theme="dark"] .icon-btn:hover {
    background: #2d2d2d;
}

[data-theme="dark"] .doc-body code {
    background: #2d2d2d;
    color: #f87171;
}

[data-theme="dark"] .nav-link:hover {
    background: #404040;
}

[data-theme="dark"] .nav-item.active > .nav-item-header > .nav-link {
    background: #1e3a5f;
}

[data-theme="dark"] .empty-state {
    opacity: 0.7;
}

[data-theme="dark"] .doc-body pre {
    background: #1e1e1e;
    color: #d4d4d4;
}

[data-theme="dark"] .doc-body blockquote {
    border-left-color: #60a5fa;
    color: #9ca3af;
}

[data-theme="dark"] .doc-body table th {
    background: #2d2d2d;
}

[data-theme="dark"] .doc-body table th,
[data-theme="dark"] .doc-body table td {
    border-color: #404040;
}

[data-theme="dark"] .toc-item a {
    color: #9ca3af;
}

[data-theme="dark"] .toc-item a:hover {
    color: #60a5fa;
    background: #2d2d2d;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* 顶部导航栏 */
.site-header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.header-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
    flex: 1;
    min-width: 0; /* 允许flex子元素收缩 */
    overflow: hidden; /* 防止溢出 */
}

.logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

.logo img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.search-box {
    flex: 1;
    max-width: 400px;
    min-width: 0; /* 允许收缩 */
}

.search-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--sidebar-bg);
    color: var(--text-color);
    cursor: pointer;
}

.search-input:focus {
    outline: none;
    border-color: var(--link-color);
    background: var(--bg-color);
}

.header-nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.header-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 12px;
    border-radius: 4px;
    transition: background 0.2s;
}

.header-nav a:hover {
    background: var(--sidebar-bg);
}

.header-right {
    display: flex;
    gap: 12px;
    align-items: center;
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 18px;
    padding: 6px;
    border-radius: 4px;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.icon-btn img {
    display: block;
    width: 20px;
    height: 20px;
}

.icon-btn:hover {
    background: var(--sidebar-bg);
}

/* 主题切换开关 */
/* 主题切换开关 */
.theme-toggle-switch {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 50px;
    height: 26px;
    position: relative;
    outline: none;
    display: flex;
    align-items: center;
}

.theme-toggle-track {
    width: 100%;
    height: 100%;
    background: #e5e7eb;
    border-radius: 13px;
    position: relative;
    transition: background 0.3s ease;
}

:root[data-theme="dark"] .theme-toggle-track {
    background: #4b5563;
}

.theme-toggle-handle {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: #ffffff;
    border-radius: 50%;
    transition: transform 0.3s ease, background 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

:root[data-theme="dark"] .theme-toggle-handle {
    background: #1f2937;
    transform: translateX(24px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.theme-icon {
    width: 14px;
    height: 14px;
    display: block;
    transition: opacity 0.3s ease;
}

.theme-toggle-switch:hover .theme-toggle-track {
    background: #d1d5db;
}

:root[data-theme="dark"] .theme-toggle-switch:hover .theme-toggle-track {
    background: #6b7280;
}

/* 主容器 */
.main-container {
    display: flex;
    max-width: 100%;
    min-height: calc(100vh - 64px);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-right: 12px;
    z-index: 1001;
    align-items: center;
}

.mobile-menu-btn span {
    width: 100%;
    height: 2px;
    background: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s;
    transform-origin: center;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 侧边栏遮罩层 */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* 左侧边栏 */
.sidebar {
    width: 400px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 20px 0;
    overflow-y: auto;
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.sidebar-nav {
    padding: 0 24px;
    flex: 1;
    overflow-y: auto;
}

/* 版权信息样式 */
.copyright-info {
    margin-top: auto;
    padding: 16px;
    margin: 20px 16px 16px;
    background: var(--sidebar-bg);
    color: var(--text-color);
    font-size: 12px;
    line-height: 1.6;
    text-align: center;
}

.copyright-info a {
    color: var(--link-color);
    text-decoration: none;
}

.copyright-info a:hover {
    text-decoration: underline;
}

.nav-item {
    margin-bottom: 4px;
}

.nav-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 6px;
    font-size: 10px;
    color: var(--text-color);
    opacity: 0.6;
    transition: transform 0.2s, color 0.2s, opacity 0.2s;
    flex-shrink: 0;
    margin-top: 6px;
}

[data-theme="dark"] .nav-toggle {
    opacity: 0.7;
}

.nav-toggle:hover {
    color: var(--text-color);
}

.nav-toggle.expanded {
    transform: rotate(90deg);
}

.nav-spacer {
    width: 18px;
    flex-shrink: 0;
}

.nav-link {
    flex: 1;
    display: block;
    padding: 8px 12px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 6px;
    font-size: 14px;
    transition: background 0.2s, color 0.2s;
    max-width: 55%;
}

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

.nav-group-title {
    flex: 1;
    display: block;
    padding: 8px 12px;
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
    cursor: default;
    max-width: 55%;
}

/* 高亮当前活动章节的链接（包括有内容的父分类） */
.nav-item.active > .nav-item-header > .nav-link {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--link-color);
    font-weight: 500;
}

[data-theme="dark"] .nav-item.active > .nav-item-header > .nav-link {
    background-color: rgba(96, 165, 250, 0.15);
}

/* 没有内容的父分类标题（span标签）即使有active类也不高亮 */
.nav-item.active > .nav-item-header > .nav-group-title:not(a) {
    background: transparent !important;
    color: var(--text-color) !important;
}

/* 没有active类的父分类标题保持原样 */
.nav-group-title {
    font-weight: 500;
}

.nav-item-header {
    display: flex;
    align-items: flex-start;
    gap: 4px;
}

.nav-children {
    display: none;
    width: 100%;
    margin-top: 4px;
    border-left: 1px solid var(--border-color);
    padding-left: 12px;
    margin-left: 22px;
}

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

/* 主内容区 */
.content {
    flex: 1;
    padding: 40px 60px;
    max-width: 900px;
    margin: 0 auto;
    overflow-x: hidden;
}

.doc-content {
    width: 100%;
}

.doc-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-color);
    line-height: 1.2;
}

.doc-body {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
}

/* 清理 Editor.md 生成的 HTML 样式 */
.doc-body .markdown-body,
.doc-body .editormd-preview-container,
.doc-body .editormd-preview {
    all: unset;
    display: block;
}

.doc-body .markdown-body *,
.doc-body .editormd-preview-container *,
.doc-body .editormd-preview * {
    all: unset;
    display: revert;
}

.doc-body .markdown-body img,
.doc-body .editormd-preview-container img,
.doc-body .editormd-preview img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
    margin: 16px 0;
    border-radius: 8px;
}

.doc-body h1 {
    font-size: 32px;
    font-weight: 700;
    margin-top: 32px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.doc-body h2 {
    font-size: 24px;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 16px;
}

.doc-body h3 {
    font-size: 20px;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 12px;
}

.doc-body h4 {
    font-size: 18px;
    font-weight: 600;
    margin-top: 20px;
    margin-bottom: 10px;
}

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

.doc-body ul,
.doc-body ol {
    display: block;
    margin-bottom: 16px;
    padding-left: 24px;
    list-style-position: outside;
}

.doc-body ul {
    list-style-type: disc;
}

.doc-body ol {
    list-style-type: decimal;
}

.doc-body li {
    display: list-item;
    margin-bottom: 8px;
    margin-left: 0;
}

.doc-body code {
    background: var(--sidebar-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: #e11d48;
}

.doc-body pre {
    background: #1f2937;
    color: #f9fafb;
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 16px;
}

[data-theme="dark"] .doc-body pre {
    background: #1e1e1e;
    color: #d4d4d4;
}

.doc-body pre code {
    background: none;
    padding: 0;
    color: inherit;
    font-size: 14px;
}

.doc-body a {
    color: var(--link-color);
    text-decoration: none;
}

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

.doc-body img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 16px 0;
    border-radius: 8px;
}

/* 章节导航 */
.chapter-navigation-fixed {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-color);
}

.chapter-navigation-container {
    width: 100%;
    margin: 0;
    padding: 0;
}

@media (max-width: 768px) {
    .chapter-navigation {
        gap: 12px;
    }
    
    .chapter-navigation a {
        padding: 10px 16px;
        font-size: 13px;
    }
}

.chapter-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    align-items: center;
}

.chapter-navigation > div {
    display: flex;
}

.chapter-navigation .nav-link-prev {
    justify-content: flex-start;
}

.chapter-navigation .nav-link-next {
    justify-content: flex-end;
}

.chapter-navigation a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
    display: inline-block;
    padding: 12px 70px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    text-align: left;
    max-width: 90%;
}

.chapter-navigation .nav-link-next a {
    text-align: right;
}

.chapter-navigation a:hover {
    text-decoration: none;
    border-color: var(--link-color);
    background: var(--sidebar-bg);
    color: var(--link-color);
}

[data-theme="dark"] .chapter-navigation-fixed {
    background: var(--bg-color);
    border-top-color: var(--border-color);
}

[data-theme="dark"] .chapter-navigation a {
    border-color: var(--border-color);
    background: var(--bg-color);
}

[data-theme="dark"] .chapter-navigation a:hover {
    border-color: var(--link-color);
    background: var(--sidebar-bg);
    color: var(--link-color);
}

.doc-body blockquote {
    border-left: 4px solid var(--link-color);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--text-color);
    opacity: 0.7;
    font-style: italic;
}

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

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

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

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-color);
    opacity: 0.6;
}

/* 项目列表页面 */
.project-list-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.project-list-page .doc-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-color);
    text-align: center;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
    margin-top: 48px;
}

.project-card {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--link-color), #60a5fa);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    border-color: var(--link-color);
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card h2 {
    margin: 0 0 16px 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
}

.project-card h2 a {
    color: var(--link-color);
    text-decoration: none;
}

.project-card h2 a:hover {
    text-decoration: underline;
}

.project-card p {
    margin: 0;
    color: var(--text-color);
    opacity: 0.8;
    line-height: 1.6;
}

/* 右侧目录导航 */
.toc-sidebar {
    width: 240px;
    padding: 40px 20px;
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
    overflow-y: auto;
}

.toc-container {
    position: sticky;
    top: 20px;
}

.toc-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.toc-item {
    margin-bottom: 8px;
}

.toc-item a {
    display: block;
    padding: 6px 8px;
    color: var(--text-color);
    opacity: 0.7;
    text-decoration: none;
    font-size: 14px;
    border-radius: 4px;
    transition: color 0.2s, background 0.2s, opacity 0.2s;
}

.toc-item a:hover {
    color: var(--link-color);
    background: #f3f4f6;
}

.toc-item a.active {
    color: var(--link-color);
    font-weight: 500;
}

.toc-level-1 {
    padding-left: 0;
}

.toc-level-2 {
    padding-left: 16px;
}

.toc-level-3 {
    padding-left: 32px;
}

.toc-level-4 {
    padding-left: 48px;
}

.toc-level-5 {
    padding-left: 64px;
}

.toc-level-6 {
    padding-left: 80px;
}

/* 移动端目录按钮 */
.mobile-toc-btn {
    display: none;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.mobile-toc-btn:hover {
    background: var(--sidebar-bg);
}

.mobile-toc-btn svg {
    transition: transform 0.3s;
    flex-shrink: 0;
}

.mobile-toc-btn.active svg {
    transform: rotate(180deg);
}

/* 移动端目录遮罩层 */
.toc-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1002;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.toc-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* 移动端目录面板 */
.mobile-toc-panel {
    display: none;
    position: fixed;
    top: 64px;
    right: 0;
    width: 280px;
    max-width: 85vw;
    max-height: calc(100vh - 64px);
    background: var(--bg-color);
    border-left: 1px solid var(--border-color);
    z-index: 1003;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    flex-direction: column;
}

.mobile-toc-panel.active {
    transform: translateX(0);
}

.mobile-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.mobile-toc-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
}

.mobile-toc-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-color);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.mobile-toc-close:hover {
    opacity: 1;
}

.mobile-toc-content {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .toc-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    /* 移动端菜单按钮显示 */
    .mobile-menu-btn {
        display: flex;
    }
    
    /* 移动端目录按钮显示 */
    .mobile-toc-btn {
        display: flex;
    }
    
    /* 移动端目录遮罩层和面板显示 */
    .toc-overlay {
        display: block;
    }
    
    .mobile-toc-panel {
        display: flex;
    }
    
    /* 隐藏桌面端目录 */
    .toc-sidebar {
        display: none;
    }
    
    /* 侧边栏在移动端默认隐藏 */
    .sidebar {
        position: fixed;
        top: 64px;
        left: 0;
        width: 280px;
        max-width: 85vw;
        height: calc(100vh - 64px);
        z-index: 1000;
        transform: translateX(-100%);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    /* 遮罩层在移动端显示 */
    .sidebar-overlay {
        display: block;
    }
    
    /* 主容器在移动端全宽 */
    .main-container {
        flex-direction: column;
    }
    
    /* 内容区域在移动端全宽 */
    .content {
        padding: 16px;
        width: 100%;
        max-width: 100%;
    }
    
    /* 隐藏顶部导航菜单 */
    .header-nav {
        display: none;
    }
    
    /* 移动端头部布局调整 */
    .header-left {
        gap: 8px;
        flex: 1;
        min-width: 0;
        overflow: hidden;
    }
    
    .header-right {
        gap: 6px;
        flex-shrink: 0;
    }
    
    /* 移动端搜索框调整 - 缩小但保留 */
    .search-box {
        flex: 1;
        max-width: 120px;
        min-width: 80px;
    }
    
    .search-input {
        padding: 6px 8px;
        font-size: 12px;
    }
    
    /* 移动端目录按钮调整 - 只显示图标，不显示文字 */
    .mobile-toc-btn {
        padding: 6px 8px;
        font-size: 13px;
        min-width: 32px;
        justify-content: center;
    }
    
    .mobile-toc-btn span {
        display: none; /* 移动端隐藏文字，只显示图标 */
    }
    
    .mobile-toc-btn svg {
        margin: 0;
        width: 14px;
        height: 14px;
    }
    
    /* 移动端logo调整 */
    .logo {
        font-size: 14px;
        flex-shrink: 1;
        min-width: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .logo img {
        width: 24px;
        height: 24px;
        border-radius: 50%;
        object-fit: cover;
    }
    
    /* 调整标题大小 */
    .doc-title {
        font-size: 24px;
        margin-bottom: 16px;
    }
    
    /* 调整文档内容 */
    .doc-body {
        font-size: 15px;
        line-height: 1.7;
    }
    
    .doc-body img {
        max-width: 100%;
        height: auto;
    }
    
    /* 调整导航按钮 */
    .chapter-navigation {
        grid-template-columns: 1fr;
        gap: 12px;
        width: 100%;
        margin: 0;
        padding: 0;
    }
    
    .chapter-navigation > div {
        width: 100%;
        display: flex;
    }
    
    .chapter-navigation .nav-link-prev {
        justify-content: flex-start;
    }
    
    .chapter-navigation .nav-link-next {
        justify-content: flex-end;
    }
    
    .chapter-navigation a {
        padding: 12px 20px;
        font-size: 14px;
        max-width: 100%;
        width: 100%;
        box-sizing: border-box;
    }
    
    /* 调整项目卡片 */
    .project-card {
        padding: 20px;
    }
    
    .project-card h3 {
        font-size: 20px;
    }
    
    /* 调整版权信息 */
    .copyright-info {
        font-size: 11px;
        padding: 12px;
        margin: 16px 12px 12px;
    }
    
    /* 移动端头部调整 */
    .header-left {
        gap: 8px;
        flex: 0 1 auto;
        min-width: 0;
    }
    
    .logo {
        font-size: 14px;
        flex-shrink: 1;
        min-width: 0;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .logo img {
        width: 24px;
        height: 24px;
        border-radius: 50%;
        object-fit: cover;
    }
    
    /* 移动端主题切换按钮调整 */
    .theme-toggle-switch {
        width: 44px;
        height: 22px;
    }
    
    /* 确保移动端按钮可点击 */
    .mobile-menu-btn,
    .mobile-toc-btn {
        pointer-events: auto !important;
        z-index: 1001;
        position: relative;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
    
    /* 确保遮罩层可点击（只在激活时） */
    .sidebar-overlay.active,
    .toc-overlay.active {
        pointer-events: auto;
    }
    
    /* 确保侧边栏和目录面板可点击 */
    .sidebar,
    .mobile-toc-panel {
        pointer-events: auto;
        -webkit-tap-highlight-color: transparent;
    }
    
    /* 确保导航按钮可点击 */
    .chapter-navigation a {
        pointer-events: auto !important;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
        touch-action: manipulation;
    }
    
    /* 移动端名片弹窗调整 */
    .card-popup-content {
        max-width: 95vw;
        max-height: 95vh;
        padding: 10px;
    }
    
    .card-popup-content.image-content {
        max-width: 95vw;
        padding: 10px;
    }
    
    .card-popup-body.image-body {
        padding: 10px;
        max-width: 100%;
    }
    
    .card-popup-body img {
        max-width: 100%;
        max-height: calc(95vh - 60px);
        width: auto;
        height: auto;
    }
}

/* 搜索模态框 */
.search-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    align-items: flex-start;
    justify-content: center;
    padding-top: 10vh;
    backdrop-filter: blur(4px);
}

.search-modal-content {
    background: var(--bg-color);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.search-modal-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-input-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: #9ca3af;
    pointer-events: none;
}

.search-modal-input {
    width: 100%;
    padding: 12px 40px 12px 40px;
    border: 2px solid var(--link-color);
    border-radius: 8px;
    font-size: 16px;
    background: var(--bg-color);
    color: var(--text-color);
    outline: none;
}

.search-close-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    color: #9ca3af;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.search-close-btn:hover {
    background: var(--sidebar-bg);
    color: var(--text-color);
}

.search-results {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
    min-height: 200px;
    max-height: calc(70vh - 140px);
}

.search-results-list {
    padding: 0;
}

.search-result-item {
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.2s;
    border-left: 3px solid transparent;
}

.search-result-item:hover {
    background: var(--sidebar-bg);
}

.search-result-item.selected {
    background: rgba(37, 99, 235, 0.1);
    border-left-color: var(--link-color);
}

.search-result-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.search-result-path {
    font-size: 14px;
    color: var(--text-color);
    line-height: 1.5;
}

.search-result-item.selected .search-result-path {
    color: var(--link-color);
    font-weight: 500;
}

.search-empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-color);
    opacity: 0.6;
    font-size: 14px;
}

.search-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    background: var(--sidebar-bg);
}

.search-shortcuts {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-color);
    opacity: 0.7;
    flex-wrap: wrap;
}

.search-shortcuts kbd {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 11px;
    font-family: monospace;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .search-modal {
    background: rgba(0, 0, 0, 0.7);
}

[data-theme="dark"] .search-modal-content {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .search-result-item.selected {
    background: rgba(96, 165, 250, 0.15);
}

/* 美化滚动条 */
.sidebar-nav::-webkit-scrollbar,
.search-results::-webkit-scrollbar,
.content::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.sidebar-nav::-webkit-scrollbar-track,
.search-results::-webkit-scrollbar-track,
.content::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 4px;
}

.sidebar-nav::-webkit-scrollbar-thumb,
.search-results::-webkit-scrollbar-thumb,
.content::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    transition: background 0.2s;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover,
.search-results::-webkit-scrollbar-thumb:hover,
.content::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .sidebar-nav::-webkit-scrollbar-thumb,
[data-theme="dark"] .search-results::-webkit-scrollbar-thumb,
[data-theme="dark"] .content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .sidebar-nav::-webkit-scrollbar-thumb:hover,
[data-theme="dark"] .search-results::-webkit-scrollbar-thumb:hover,
[data-theme="dark"] .content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 名片弹窗 */
.card-popup-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10001;
}

.card-popup-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.card-popup-content {
    position: relative;
    background: var(--bg-color);
    border-radius: 12px;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    z-index: 1;
}

.card-popup-content.image-content {
    width: auto;
    max-width: 90vw;
    padding: 20px;
}

.card-popup-content.iframe-content {
    width: 90%;
    max-width: 900px;
}

.card-popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 32px;
    height: 32px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: background 0.2s;
}

.card-popup-close:hover {
    background: rgba(0, 0, 0, 0.7);
}

.card-popup-body {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.card-popup-body.image-body {
    padding: 20px;
    height: auto;
    min-height: 100px;
    max-width: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-popup-body.iframe-body {
    height: 80vh;
    overflow: hidden;
}

.card-popup-body img {
    max-width: 100%;
    max-height: calc(90vh - 80px);
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    display: block;
    margin: 0 auto;
}

.card-popup-body iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.card-icon-btn {
    text-decoration: none;
}