/* 侧边栏 */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform var(--transition-normal), width var(--transition-normal);
    overflow-y: auto;
}

.sidebar.collapsed {
    width: 70px;
}

.sidebar.collapsed .sidebar-content,
.sidebar.collapsed .sidebar-footer,
.sidebar.collapsed .logo h2,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .badge,
.sidebar.collapsed .search-box input,
.sidebar.collapsed .sidebar-section h3,
.sidebar.collapsed .sidebar-section,
.sidebar.collapsed .theme-switcher span,
.sidebar.collapsed .github-link span,
.sidebar.collapsed .update-time span {
    display: none;
}

.sidebar.collapsed .logo-img {
    margin: 0 auto;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: var(--spacing-md);
}

.sidebar.collapsed .search-box {
    justify-content: center;
    padding: var(--spacing-md);
}

.sidebar.collapsed .search-box i {
    margin: 0;
}

.sidebar.collapsed .theme-switcher {
    justify-content: center;
}

/* 侧边栏头部 */
.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
}

.logo h2 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.125rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* 侧边栏内容 */
.sidebar-content {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

/* 搜索框 */
.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

.search-box i {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.search-box input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: inherit;
}

.search-box input::placeholder {
    color: var(--text-tertiary);
}

/* 导航菜单 */
.nav-menu {
    margin-bottom: var(--spacing-xl);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-xs);
    position: relative;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-color);
    color: white;
}

.nav-item.active .badge {
    background: white;
    color: var(--primary-color);
}

.nav-item i {
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

.nav-item span {
    font-size: 0.875rem;
    font-weight: 500;
    flex: 1;
}

/* 报告目录 */
.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-section h3 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.report-toc {
    max-height: 300px;
    overflow-y: auto;
}

.toc-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.toc-item:hover {
    color: var(--text-primary);
}

.toc-item i {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

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

.toc-item.active i {
    color: var(--primary-color);
}

/* 主题切换器 */
.theme-switcher {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-top: auto;
}

.theme-switcher i {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

/* 侧边栏底部 */
.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.update-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.update-time i {
    font-size: 0.875rem;
}

.github-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.github-link:hover {
    color: var(--text-primary);
}

/* 滚动条样式 */
.sidebar::-webkit-scrollbar,
.report-toc::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track,
.report-toc::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.sidebar::-webkit-scrollbar-thumb,
.report-toc::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover,
.report-toc::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* 移动端侧边栏 */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }
    
    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }
    
    .sidebar.collapsed {
        width: 280px;
        transform: translateX(-100%);
    }
    
    .sidebar.collapsed.open {
        transform: translateX(0);
    }
    
    .sidebar.collapsed .sidebar-content,
    .sidebar.collapsed .sidebar-footer,
    .sidebar.collapsed .logo h2,
    .sidebar.collapsed .nav-item span,
    .sidebar.collapsed .badge,
    .sidebar.collapsed .search-box input,
    .sidebar.collapsed .sidebar-section h3,
    .sidebar.collapsed .sidebar-section,
    .sidebar.collapsed .theme-switcher span,
    .sidebar.collapsed .github-link span,
    .sidebar.collapsed .update-time span {
        display: block;
    }
    
    .sidebar.collapsed .logo-img {
        margin: 0;
    }
    
    .sidebar.collapsed .nav-item {
        justify-content: flex-start;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .sidebar.collapsed .search-box {
        justify-content: flex-start;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .sidebar.collapsed .search-box i {
        margin: 0;
    }
    
    .sidebar.collapsed .theme-switcher {
        justify-content: space-between;
    }
}