:root{--primary: #1a73e8;--primary-dark: #1557b0;--primary-light: #e8f0fe;--success: #34a853;--warning: #f9ab00;--danger: #ea4335;--gray-50: #f8f9fa;--gray-100: #f1f3f4;--gray-200: #e8eaed;--gray-300: #dadce0;--gray-500: #9aa0a6;--gray-700: #5f6368;--gray-900: #202124;--radius: 12px;--radius-sm: 8px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.1);--shadow-lg: 0 8px 24px rgba(0,0,0,.12)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--gray-50);color:var(--gray-900);line-height:1.6}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1200px;margin:0 auto;padding:24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:all 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