:root {
    --primary: #3370FF;
    --primary-hover: #1F5FFF;
    --brand-weak: #E8F0FE;
    --bg-page: #F5F6F7;
    --bg-card: #ffffff;
    --bg-table-alt: #FAFAFA;
    --text-primary: #1F2329;
    --text-secondary: #646A73;
    --text-tertiary: #8F959E;
    --border: #E5E6EB;
    --border-light: #F0F1F2;
    --border-dark: #C9CDD4;
    --hover: #F2F3F5;
    --danger: #F53F3F;
    --danger-hover: #C82F2F;
    --danger-weak: #FFEDEE;
    --success: #00B42A;
    --warning: #FF7D00;
    --neutral: #8F959E;
    --shadow-card: none;
    --shadow-pop: 0 4px 12px rgba(0, 0, 0, .08);
    --shadow-modal: 0 8px 32px rgba(0, 0, 0, .16);
    --radius-card: 4px;
    --radius-btn: 4px;
    --radius-sm: 4px;
    --sidebar-width: 200px;
    --fs-kpi: 26px;
    --fs-title: 20px;
    --fs-section: 14px;
    --fs-body: 14px;
    --fs-secondary: 13px;
    --fs-caption: 12px;
    --font: "Segoe UI Variable", "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    --font-display: "Segoe UI Variable Display", "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    --font-mono: "Cascadia Mono", Consolas, "SFMono-Regular", monospace;
    --font-mobile: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", Roboto, sans-serif;
}