:root{--color-background:#FDFDFD;--color-surface:#F7F7F7;--color-text:#1a1a1a;--color-text-secondary:#666666;--color-accent:#FFA500;--color-border:#EAEAEA;--font-family-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--spacing-unit:8px;--border-radius:6px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--color-background);color:var(--color-text);font-family:var(--font-family-sans);line-height:1.7}.container{width:100%;max-width:1100px;margin:0 auto;padding:calc(var(--spacing-unit) * 3)}