:root{--color-primary:#1D1D1F;--color-bg:#FFFFFF;--color-bg-secondary:#F5F5F7;--color-text:#1D1D1F;--color-text-secondary:#86868B;--color-border:#D2D2D7;--color-border-secondary:#E8E8ED;--color-error:#FF3B30;--color-warning:#FF9500;--color-success:#34C759;--color-canvas-bg:#F0F0F0;--color-surface:#FFFFFF;--color-surface-secondary:#F5F5F7;--color-btn-primary-bg:#1D1D1F;--color-btn-primary-text:#FFFFFF;--color-btn-primary-bg-hover:#333333;--color-btn-secondary-bg:#E5E5EA;--color-btn-secondary-text:#1D1D1F;--color-btn-secondary-bg-hover:#D1D1D6;--color-hover:rgba(0,0,0,0.04);--color-icon-muted:#666666;--color-disabled:#CCCCCC;--color-scrollbar:#CCCCCC;--color-accent:#2563EB;--color-accent-bg:#EFF6FF;--color-danger-bg:#FEE2E2;--color-banner-bg:#fffbeb;--color-banner-border:#fde68a;--color-banner-text:#92400e;--color-banner-accent:#d97706;--color-success-hover:#2db84e;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px rgba(0,0,0,0.04);--shadow-md:0 4px 12px rgba(0,0,0,0.08);--shadow-lg:0 8px 24px rgba(0,0,0,0.12)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,Arial,sans-serif;color:var(--color-text);background-color:var(--color-bg);line-height:1.5}a{color:inherit;text-decoration:none}[data-theme=dark]{--color-primary:#1D1D1F;--color-bg:#1C1C1E;--color-bg-secondary:#2C2C2E;--color-text:#F5F5F7;--color-text-secondary:#98989D;--color-border:#38383A;--color-border-secondary:#2C2C2E;--color-error:#FF453A;--color-warning:#FF9F0A;--color-success:#30D158;--color-canvas-bg:#2C2C2E;--color-surface:#2C2C2E;--color-surface-secondary:#3A3A3C;--color-btn-primary-bg:#F5F5F7;--color-btn-primary-text:#1C1C1E;--color-btn-primary-bg-hover:#E5E5EA;--color-btn-secondary-bg:#3A3A3C;--color-btn-secondary-text:#F5F5F7;--color-btn-secondary-bg-hover:#48484A;--color-hover:rgba(255,255,255,0.06);--color-icon-muted:#98989D;--color-disabled:#48484A;--color-scrollbar:#555555;--color-accent:#64A0FF;--color-accent-bg:rgba(100,160,255,0.15);--color-danger-bg:rgba(255,69,58,0.15);--color-banner-bg:#3D3200;--color-banner-border:#5C4B00;--color-banner-text:#FCD34D;--color-banner-accent:#FBBF24;--color-success-hover:#28B84C;--shadow-sm:0 1px 2px rgba(0,0,0,0.2);--shadow-md:0 4px 12px rgba(0,0,0,0.3);--shadow-lg:0 8px 24px rgba(0,0,0,0.4);color-scheme:dark}