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

:root {
    --bg-dark: #1a1a2e;
    --bg-sidebar: #16213e;
    --bg-main: #0f0f1a;
    --bg-card: #1f1f3a;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0a0;
    --accent: #4f8cff;
    --accent-hover: #6ba0ff;
    --border: #2a2a4a;
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #f87171;
}

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

.container {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: 280px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.logo {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.nav {
    flex: 1;
    padding: 16px 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    padding: 0 20px;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

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

.nav-section li {
    padding: 10px 20px;
    cursor: pointer;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-section li:hover {
    background: rgba(79, 140, 255, 0.1);
    border-left-color: var(--accent);
}

.nav-section li.active {
    background: rgba(79, 140, 255, 0.15);
    border-left-color: var(--accent);
    color: var(--accent);
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

#refresh-btn {
    width: 100%;
    padding: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

#refresh-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

/* 主内容区 */
.main {
    flex: 1;
    margin-left: 280px;
    display: flex;
    flex-direction: column;
}

.header {
    padding: 16px 32px;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.breadcrumb {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.update-time {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.content {
    flex: 1;
    padding: 32px;
    overflow-y: auto;
}

/* 欢迎页 */
.welcome {
    max-width: 900px;
    margin: 0 auto;
}

.welcome h2 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.welcome > p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

.quick-actions h3 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.action-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.action-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.action-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 12px;
}

.action-text {
    font-size: 0.9rem;
}

/* 报告内容 */
.report-view {
    max-width: 900px;
    margin: 0 auto;
}

.report-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.report-title {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.report-meta {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.report-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
}

/* Markdown 样式 */
.report-content h1 {
    font-size: 1.75rem;
    margin: 24px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.report-content h2 {
    font-size: 1.4rem;
    margin: 24px 0 12px;
    color: var(--accent);
}

.report-content h3 {
    font-size: 1.15rem;
    margin: 20px 0 10px;
}

.report-content p {
    margin: 12px 0;
}

.report-content ul, .report-content ol {
    margin: 12px 0;
    padding-left: 24px;
}

.report-content li {
    margin: 6px 0;
}

.report-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

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

.report-content th {
    background: var(--bg-dark);
}

.report-content code {
    background: var(--bg-dark);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9em;
}

.report-content pre {
    background: var(--bg-dark);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 16px 0;
}

.report-content pre code {
    padding: 0;
    background: none;
}

.report-content blockquote {
    border-left: 4px solid var(--accent);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--text-secondary);
    font-style: italic;
}

.report-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 24px 0;
}

/* 响应式 - 移动端优化 */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
    
    .sidebar.collapsed .nav {
        display: none;
    }
    
    .sidebar.collapsed .sidebar-footer {
        display: none;
    }
    
    .logo {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 16px;
    }
    
    .logo h1 {
        font-size: 1.1rem;
    }
    
    .menu-toggle {
        display: block;
        background: var(--bg-card);
        border: 1px solid var(--border);
        color: var(--text-primary);
        padding: 8px 12px;
        border-radius: 6px;
        cursor: pointer;
        font-size: 1rem;
    }
    
    .nav {
        max-height: 50vh;
        overflow-y: auto;
        padding: 8px 0;
    }
    
    .nav-section {
        margin-bottom: 16px;
    }
    
    .nav-section h3 {
        padding: 0 16px;
        font-size: 0.7rem;
    }
    
    .nav-section li {
        padding: 12px 16px;
        font-size: 0.85rem;
    }
    
    .sidebar-footer {
        padding: 12px 16px;
    }
    
    .main {
        margin-left: 0;
    }
    
    .header {
        padding: 12px 16px;
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
    
    .breadcrumb {
        font-size: 0.85rem;
    }
    
    .content {
        padding: 16px;
    }
    
    .welcome h2 {
        font-size: 1.3rem;
    }
    
    .stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        margin-bottom: 24px;
    }
    
    .stat-card {
        padding: 12px 8px;
        border-radius: 8px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.7rem;
    }
    
    .action-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .action-card {
        padding: 16px;
        display: flex;
        align-items: center;
        gap: 12px;
        text-align: left;
    }
    
    .action-icon {
        font-size: 1.5rem;
        margin-bottom: 0;
    }
    
    .report-view {
        max-width: 100%;
    }
    
    .report-header {
        margin-bottom: 20px;
        padding-bottom: 16px;
    }
    
    .report-title {
        font-size: 1.3rem;
    }
    
    .report-content {
        padding: 16px;
        border-radius: 8px;
    }
    
    .report-content h1 {
        font-size: 1.3rem;
    }
    
    .report-content h2 {
        font-size: 1.15rem;
    }
    
    .report-content h3 {
        font-size: 1rem;
    }
    
    .report-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .report-content th, .report-content td {
        padding: 8px;
        font-size: 0.85rem;
    }
}

/* 隐藏桌面端的菜单按钮 */
.menu-toggle {
    display: none;
}