@import"https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Noto+Sans+SC:wght@400;700;900&display=swap";*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}:root{--primary: #C0392B;--primary-light: #E74C3C;--primary-dark: #96281B;--secondary: #F5E6D3;--accent: #2C3E50;--bg: #FAF8F5;--bg-card: #FFFFFF;--text: #1A1A1A;--text-muted: #888;--border: #E8E0D5;--shadow: 0 2px 12px rgba(0,0,0,.06);--shadow-lg: 0 8px 32px rgba(0,0,0,.1);--radius: 16px;--radius-sm: 10px}html,body,#root{height:100%;width:100%}body{font-family:Nunito,sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden}.chinese{font-family:Noto Sans SC,sans-serif}button{cursor:pointer;border:none;outline:none;font-family:Nunito,sans-serif}button:active{transform:scale(.97)}.practice-container{height:100vh;height:100dvh}