:root{--color-text:#172033;--color-muted:#667085;--color-primary:#3156d9;--color-surface:#fff;--color-canvas:#f4f6fa;--color-border:#e7ebf2;--color-input-border:#cbd2df;--color-table-heading:#e5eaf0;--color-table-border:#d4dbe3;--color-table-purchase:#eaf3fa;--color-feedback:#a54119;--color-demo-bg:#fff1bd;--color-demo-text:#573e00;--color-nav-bg:#111c38;--color-nav-text:#c2cde3;--color-nav-muted:#9caccd;--radius-control:7px;--radius-panel:12px;--space-small:8px;--space-control:12px;--space-layout:24px;--font-body:Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif}*{box-sizing:border-box}html,body{background:var(--color-canvas);min-height:100%;color:var(--color-text);font-family:var(--font-body);margin:0}.ui-button{font:inherit;border:1px solid var(--color-input-border);border-radius:var(--radius-control);cursor:pointer;padding:9px 14px}.ui-button--primary{background:var(--color-primary);color:var(--color-surface);border-color:var(--color-primary)}.ui-button--secondary{background:var(--color-surface);color:var(--color-muted)}.ui-button:disabled{opacity:.5;cursor:not-allowed}.ui-button:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px}