:root{--color-bg: #f7f6f4;--color-surface: #ffffff;--color-border: #e3e0da;--color-text: #1c1a18;--color-text-muted: #6b6660;--color-accent: #b3151d;--color-accent-hover: #941117;--color-accent-soft: #fbeceb;--color-warn-bg: #fff7e6;--color-warn-border: #f0c869;--color-warn-text: #7a5b00;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08)}*{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text)}button{font-family:inherit}