:root{--color-primary: #4285F4;--color-primary-hover: #3367d6;--color-text: #1a1a1a;--color-text-secondary: #374151;--color-text-light: #6b7280;--color-text-muted: #9ca3af;--color-bg: #ffffff;--color-bg-light: #f9fafb;--color-bg-card: #f3f4f6;--color-border: #e5e7eb;--color-success: #065f46;--color-error: #991b1b;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-family);color:var(--color-text);background:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img,svg{display:block;max-width:100%}.container{max-width:1080px;margin:0 auto;padding:0 24px}.btn-primary{display:inline-flex;align-items:center;justify-content:center;padding:12px 32px;background:var(--color-primary);color:#fff;font-size:16px;font-weight:600;border:none;border-radius:var(--radius-md);cursor:pointer;transition:background .2s;text-decoration:none}.btn-primary:hover{background:var(--color-primary-hover);text-decoration:none}