@import"https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700;900&family=Noto+Sans+JP:wght@300;400;500;700;900&display=swap";:root{--bg-primary: #0f0f1a;--bg-secondary: #1a1a2e;--bg-card: #16213e;--bg-card-hover: #1a2744;--accent-primary: #e94560;--accent-secondary: #0f3460;--accent-gold: #ffd700;--accent-green: #00d26a;--accent-blue: #4fc3f7;--accent-purple: #b388ff;--accent-orange: #ff9800;--text-primary: #ffffff;--text-secondary: #b0b8c8;--text-muted: #6c7a8d;--border: #2a3a5c;--shadow: 0 4px 24px rgba(0,0,0,.3);--radius: 12px;--radius-lg: 20px;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Noto Sans TC,Noto Sans JP,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;overflow-x:hidden}#root{min-height:100vh}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--accent-secondary);border-radius:3px}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes glow{0%,to{box-shadow:0 0 5px var(--accent-primary)}50%{box-shadow:0 0 20px var(--accent-primary),0 0 40px #e945604d}}@keyframes slideInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-8px)}40%{transform:translate(8px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.3)}50%{transform:scale(1.1)}70%{transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes comboFire{0%{text-shadow:0 0 4px #ff6600}50%{text-shadow:0 0 20px #ff6600,0 0 40px #ff3300}to{text-shadow:0 0 4px #ff6600}}@keyframes sparkle{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.5)}}@keyframes rainbowBorder{0%{border-color:red}17%{border-color:#f80}33%{border-color:#ff0}50%{border-color:#0f0}67%{border-color:#08f}83%{border-color:#80f}to{border-color:red}}.animate-slideInUp{animation:slideInUp .5s ease-out}.animate-bounceIn{animation:bounceIn .6s ease-out}.animate-shake{animation:shake .5s ease-in-out}.animate-float{animation:float 3s ease-in-out infinite}.animate-pulse{animation:pulse 2s ease-in-out infinite}.combo-fire{animation:comboFire .5s ease-in-out infinite}.app-container{max-width:900px;margin:0 auto;padding:16px;min-height:100vh}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:none;border-radius:var(--radius);font-size:16px;font-weight:600;cursor:pointer;transition:var(--transition);font-family:inherit}.btn:active{transform:scale(.95)}.btn-primary{background:linear-gradient(135deg,var(--accent-primary),#c62a45);color:#fff;box-shadow:0 4px 15px #e945604d}.btn-primary:hover{box-shadow:0 6px 25px #e9456080;transform:translateY(-2px)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--accent-primary)}.btn-gold{background:linear-gradient(135deg,gold,#fa0);color:#1a1a2e;box-shadow:0 4px 15px #ffd7004d}.btn-green{background:linear-gradient(135deg,var(--accent-green),#00b359);color:#fff}.btn-lg{padding:16px 32px;font-size:18px;border-radius:var(--radius-lg)}.btn-sm{padding:8px 16px;font-size:14px}.btn-full{width:100%}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:var(--transition)}.xp-bar-container{width:100%;height:12px;background:var(--bg-secondary);border-radius:6px;overflow:hidden}.xp-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent-primary),var(--accent-gold));border-radius:6px;transition:width .8s cubic-bezier(.4,0,.2,1)}.timer-ring{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:900;border:4px solid var(--border)}.timer-warning{color:var(--accent-orange);border-color:var(--accent-orange)}.timer-danger{color:var(--accent-primary);border-color:var(--accent-primary);animation:pulse .5s ease infinite}.timer-ok{color:var(--accent-green);border-color:var(--accent-green)}.combo-display{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:900;padding:6px 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var(--border);border-radius:20px;background:var(--bg-card);color:var(--text-secondary);font-size:13px;font-weight:600;cursor:pointer;transition:var(--transition);white-space:nowrap;font-family:inherit}.grade-tab:hover{border-color:var(--accent-primary);color:var(--text-primary)}.grade-tab.active{border-color:var(--accent-primary);color:var(--accent-primary);background:#e945601a}.vocab-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:12px;cursor:pointer;transition:var(--transition);position:relative;text-align:center}.vocab-card:hover{border-color:var(--accent-blue);transform:translateY(-2px);box-shadow:0 4px 15px #4fc3f726}.vocab-card:active{transform:scale(.97)}.vocab-mastered-badge{position:absolute;top:4px;right:6px;font-size:12px;color:var(--accent-green);font-weight:900}.vocab-word{font-size:18px;font-weight:700;margin-bottom:2px}.vocab-reading{font-size:12px;color:var(--text-secondary);margin-bottom:2px}.vocab-meaning{font-size:13px;color:var(--accent-gold);margin-bottom:2px}.vocab-pos{font-size:10px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px}.chat-bubble{max-width:80%;padding:10px 14px;border-radius:16px;animation:slideInUp .3s ease-out}.chat-npc{align-self:flex-start;background:var(--bg-card);border:1px solid var(--border);border-bottom-left-radius:4px}.chat-user{align-self:flex-end;background:linear-gradient(135deg,#e9456026,#e9456014);border:1px solid rgba(233,69,96,.3);border-bottom-right-radius:4px}.chat-role{font-size:11px;color:var(--text-muted);margin-bottom:4px;font-weight:600;text-transform:uppercase;letter-spacing:1px}.chat-text{font-size:15px;line-height:1.5}.chat-meaning{font-size:12px;color:var(--text-muted);margin-top:4px;font-style:italic}.chat-correction{font-size:13px;color:var(--accent-green);margin-top:6px;padding-top:6px;border-top:1px solid rgba(0,210,106,.2)}.chat-typing{display:flex;gap:4px;padding:4px 0}.typing-dot{width:8px;height:8px;border-radius:50%;background:var(--text-muted);animation:typingBounce 1.4s ease-in-out infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-6px)}}.section-divider{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:24px 0}.streak-flame{animation:flameFlicker 1.5s ease-in-out infinite;display:inline-block}@keyframes flameFlicker{0%,to{transform:scale(1) rotate(-2deg)}25%{transform:scale(1.05) rotate(1deg)}50%{transform:scale(1.08) rotate(-1deg)}75%{transform:scale(1.03) rotate(2deg)}}.streak-particles{overflow:hidden}.streak-particle{position:absolute;width:4px;height:4px;border-radius:50%;left:var(--x);bottom:10px;opacity:0;animation:particleFloat 2.5s ease-out infinite;animation-delay:var(--delay)}@keyframes particleFloat{0%{transform:translateY(0);opacity:.8}to{transform:translateY(-80px);opacity:0}}.mic-btn-active{animation:micGlow 1s ease-in-out infinite}@keyframes micGlow{0%,to{box-shadow:0 0 0 4px #ef44444d}50%{box-shadow:0 0 0 8px #ef444426}}.mic-pulse-ring{position:absolute;top:-4px;right:-4px;bottom:-4px;left:-4px;border-radius:50%;border:2px solid rgba(239,68,68,.6);animation:micPulse 1.2s ease-out infinite}@keyframes micPulse{0%{transform:scale(1);opacity:.8}to{transform:scale(1.4);opacity:0}}.heatmap-cell:hover{transform:scale(1.5);z-index:1}.word-chip{display:inline-block;padding:8px 14px;margin:4px;border-radius:10px;background:var(--card-bg, #1e293b);border:1px solid var(--border, #334155);cursor:pointer;font-size:15px;font-weight:600;transition:all .15s;-webkit-user-select:none;user-select:none}.word-chip:hover{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary)}.word-chip.selected{opacity:.3;pointer-events:none}.word-chip.placed{background:var(--accent-blue, #3b82f6);color:#fff;border-color:var(--accent-blue, #3b82f6)}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.skill-phase-dot{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;background:var(--card-bg, #1e293b);border:2px solid var(--border, #334155);transition:all .3s}.skill-phase-dot.active{border-color:var(--accent-primary);background:var(--accent-primary);transform:scale(1.15)}.skill-phase-dot.completed{border-color:var(--accent-green, #22c55e);background:var(--accent-green, #22c55e)}.memory-flashcard{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--radius-lg);transition:border-color .3s ease,box-shadow .3s ease,transform .2s ease}.memory-flashcard.correct{border-color:var(--accent-green);box-shadow:0 0 24px #00d26a33;animation:flashCorrect .4s ease}.memory-flashcard.wrong{border-color:#ef4444;box-shadow:0 0 24px #ef444433;animation:flashWrong .4s ease}@keyframes flashCorrect{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}@keyframes flashWrong{0%{transform:translate(0)}25%{transform:translate(-6px)}50%{transform:translate(6px)}75%{transform:translate(-3px)}to{transform:translate(0)}}.memory-card-preview{transition:transform .15s ease,box-shadow .15s ease}.memory-card-preview:active{transform:scale(.98)}.mic-btn{transition:transform .15s ease,box-shadow .2s ease}.mic-btn.listening{animation:micPulse 1.2s infinite ease-in-out}@keyframes micPulse{0%{box-shadow:0 0 #ef444480}50%{box-shadow:0 0 0 16px #ef444400}to{box-shadow:0 0 #ef444400}}@media (max-width: 600px){.app-container{padding:12px}.drill-chunk{font-size:22px}.drill-prompt{font-size:28px}.drill-input{font-size:16px}.header-stats{gap:10px}.stat-value{font-size:15px}.module-grid{grid-template-columns:repeat(2,1fr);gap:8px}.language-selector{grid-template-columns:1fr}.vocab-card{padding:10px}.vocab-word{font-size:16px}.chat-bubble{max-width:85%}}