:root{--primary: #7c3aed;--primary-light: #a78bfa;--primary-lighter: #ede9fe;--primary-dark: #5b21b6;--gradient: linear-gradient(135deg, #7c3aed, #8b5cf6);--bg-gradient: linear-gradient(135deg, #f0e6ff, #e8dff5, #d4c5f0);--radius: 8px;--radius-lg: 12px;--shadow: 0 4px 14px rgba(124, 58, 237, .25);--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827}*{margin:0;padding:0;box-sizing:border-box;list-style:none}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#fff;color:var(--gray-800);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-dark)}input,button{font-family:inherit}