.kids-english-container{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2,#f093fb);padding:40px var(--space-5)}.kids-theme{max-width:1200px;animation:slideIn .6s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.header-section{text-align:center;margin-bottom:30px}.kids-title{font-size:2.5rem;font-weight:800;background:linear-gradient(90deg,#ff6b6b,#4ecdc4,#45b7d1,#f7b731);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-5);animation:rainbow 3s ease-in-out infinite}@keyframes rainbow{0%,to{filter:hue-rotate(0deg)}50%{filter:hue-rotate(30deg)}}.score-board{display:inline-flex;align-items:center;gap:15px;padding:15px 30px;background:#ffffffe6;border-radius:50px;box-shadow:0 5px var(--space-5) #0003}.score-label{font-size:1.2rem;font-weight:600;color:#667eea}.score-value{font-size:1.8rem;font-weight:800;color:#ff6b6b}.score-stars{font-size:1.2rem}.category-selector{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:15px;margin-bottom:30px}.category-btn{padding:var(--space-5);background:#ffffffe6;border:3px solid transparent;border-radius:15px;cursor:pointer;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;gap:10px}.category-btn:hover{transform:translateY(-5px);box-shadow:0 10px 30px #0003}.category-btn.active{border-color:#667eea;background:linear-gradient(135deg,#667eea20,#764ba220);box-shadow:0 10px 30px #667eea66}.category-icon{font-size:2.5rem}.category-name{font-size:1.1rem;font-weight:600;color:var(--text-primary)}.mode-switcher{display:flex;gap:15px;margin-bottom:30px;justify-content:center}.mode-btn{padding:15px 40px;background:#ffffffe6;border:3px solid transparent;border-radius:var(--space-3);font-size:1.1rem;font-weight:600;cursor:pointer;color:var(--text-primary);transition:all .3s ease}.mode-btn:hover{transform:scale(1.05)}.mode-btn.active{border-color:#4ecdc4;background:linear-gradient(135deg,#4ecdc4,#45b7d1);color:#fff;box-shadow:0 5px var(--space-5) #4ecdc466}.learn-mode{animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.section-title{text-align:center;font-size:2rem;font-weight:700;color:#fff;margin-bottom:30px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.words-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:var(--space-5);margin-bottom:30px}.word-card{background:var(--bg-card);border-radius:var(--space-5);padding:25px;text-align:center;cursor:pointer;transition:all .3s ease;border:3px solid transparent;position:relative;overflow:hidden}.word-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,transparent,rgba(102,126,234,.1));opacity:0;transition:opacity .3s ease}.word-card:hover{transform:translateY(-10px) scale(1.05);box-shadow:0 15px 40px #0000004d;border-color:#4ecdc4}.word-card:hover:before{opacity:1}.word-emoji{font-size:4rem;margin-bottom:15px;animation:bounce 2s ease-in-out infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.word-english{font-size:1.5rem;font-weight:700;color:#667eea;margin-bottom:var(--space-2)}.word-chinese{font-size:1.1rem;color:var(--text-secondary);margin-bottom:var(--space-3)}.speak-btn{background:linear-gradient(135deg,#f7b731,#f39c12);border:none;border-radius:var(--radius-full);width:40px;height:40px;font-size:1.3rem;cursor:pointer;transition:all .3s ease;box-shadow:0 3px 10px #f7b73166}.speak-btn:hover{transform:scale(1.2);box-shadow:0 5px 15px #f7b73199}.quiz-mode{text-align:center;animation:fadeIn .5s ease}.quiz-title{font-size:1.8rem;font-weight:700;color:#fff;margin-bottom:30px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.quiz-question{background:var(--bg-card);border-radius:25px;padding:40px;margin-bottom:40px;box-shadow:0 10px 40px #0003}.question-emoji{font-size:6rem;margin-bottom:var(--space-5);animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.question-chinese{font-size:2rem;font-weight:700;color:var(--text-primary)}.quiz-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-5);margin-bottom:30px}.quiz-option{padding:var(--space-5) 30px;background:var(--bg-card);border:3px solid #ddd;border-radius:15px;font-size:1.3rem;font-weight:600;color:var(--text-primary);cursor:pointer;transition:all .3s ease}.quiz-option:hover:not(:disabled){transform:scale(1.05);border-color:#667eea;box-shadow:0 5px var(--space-5) #667eea4d}.quiz-option.correct{background:linear-gradient(135deg,#38ef7d,#11998e);color:#fff;border-color:#11998e;animation:correctAnswer .5s ease}.quiz-option.wrong{background:#f5f5f5;color:#999;border-color:#ddd}@keyframes correctAnswer{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.result-message{padding:25px;border-radius:var(--space-5);font-size:1.5rem;font-weight:700;display:flex;align-items:center;justify-content:center;gap:15px;animation:slideUp .5s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(var(--space-5))}to{opacity:1;transform:translateY(0)}}.result-message.correct{background:linear-gradient(135deg,#38ef7d,#11998e);color:#fff}.result-message.wrong{background:linear-gradient(135deg,#ffa502,#ff6348);color:#fff}.result-icon{font-size:2rem}.kids-tips{background:#ffffffe6;border:none}.kids-tips h3{color:#667eea;font-size:1.5rem}.kids-tips ul{list-style:none}.kids-tips li{color:var(--text-primary);padding:var(--space-3) 0;padding-left:30px}.kids-tips li:before{color:#f7b731;font-size:1.2rem}@media (max-width: 768px){.kids-title{font-size:1.8rem}.category-selector{grid-template-columns:repeat(2,1fr)}.words-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:15px}.word-emoji{font-size:3rem}.word-english{font-size:1.2rem}.quiz-options{grid-template-columns:1fr}.question-emoji{font-size:4rem}.question-chinese{font-size:1.5rem}}