:root{--bg-dark: #0A0E1A;--card-bg: rgba(26, 31, 58, .9);--neon-cyan: #00F5FF;--neon-magenta: #FF006E;--neon-purple: #BD00FF;--text-main: #E0E0E0}body{margin:0;background-color:var(--bg-dark);color:var(--text-main);font-family:JetBrains Mono,Fira Code,monospace;overflow:hidden}.app-container{width:100vw;height:100vh;display:flex;flex-direction:column;position:relative}.game-header{padding:15px 30px;display:flex;justify-content:space-between;align-items:center;background:#0009;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(0,245,255,.2);z-index:10}.cloud-status{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--neon-cyan);letter-spacing:1px}.status-dot{width:6px;height:6px;background:var(--neon-cyan);border-radius:50%;box-shadow:0 0 8px var(--neon-cyan);animation:pulse 2s infinite}.stats-group{display:flex;gap:20px;align-items:center}.stat-item{display:flex;align-items:center;gap:6px;font-size:14px}.game-viewport{flex:1;display:flex;justify-content:center;align-items:center;padding:20px;z-index:5}.scene-card{background:var(--card-bg);width:100%;max-width:540px;padding:30px;border-radius:2px;border:1px solid rgba(0,245,255,.3);box-shadow:0 0 40px #000c;text-align:center;position:relative}.level-indicator{position:absolute;top:-12px;left:20px;background:var(--neon-purple);padding:2px 10px;font-size:12px;font-weight:700;box-shadow:0 0 10px var(--neon-purple)}.hint-box{background:#0006;padding:12px;border-left:3px solid var(--neon-cyan);margin-bottom:25px;display:flex;align-items:center;gap:10px;text-align:left;font-size:13px}.input-slots{display:flex;justify-content:center;gap:8px;margin-bottom:30px}.char-slot{width:40px;height:50px;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;border-bottom:2px solid #333}.char-slot.filled{border-bottom-color:var(--neon-cyan);color:var(--neon-cyan);text-shadow:0 0 8px var(--neon-cyan)}.letter-pool{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:30px}.letter-btn{background:transparent;border:1px solid var(--neon-cyan);color:var(--neon-cyan);width:44px;height:44px;font-size:18px;cursor:pointer;transition:.2s}.letter-btn:hover{background:var(--neon-cyan);color:#000}.translation-card{background:linear-gradient(135deg,#00f5ff1a,#bd00ff1a);padding:20px;margin:20px 0;border:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;align-items:center;gap:10px}.word-main{font-size:32px;font-weight:800;color:var(--neon-cyan);letter-spacing:4px;text-shadow:0 0 15px var(--neon-cyan)}.word-divider{width:40px;height:2px;background:#fff;opacity:.3}.word-chinese{font-size:24px;color:#fff;font-family:Microsoft YaHei,sans-serif;letter-spacing:2px}.ai-fact-card{background:#0000004d;padding:15px;border-radius:4px;margin-bottom:25px;text-align:left}.fact-header{display:flex;align-items:center;gap:6px;color:var(--neon-purple);font-size:11px;margin-bottom:8px;text-transform:uppercase}.fact-text{font-size:14px;line-height:1.5;color:#bbb}.btn-primary{background:linear-gradient(45deg,var(--neon-cyan),var(--neon-purple));border:none;padding:12px 24px;color:#fff;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:8px}.action-bar{display:flex;gap:10px;justify-content:center}.btn-icon,.btn-hint,.btn-submit{padding:8px 16px;border:1px solid #444;background:#ffffff0d;color:#fff;cursor:pointer;font-size:12px}.btn-submit{border-color:var(--neon-cyan);color:var(--neon-cyan)}.bg-grid{position:fixed;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(0,245,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,245,255,.03) 1px,transparent 1px);background-size:30px 30px;z-index:1}.scanline{position:fixed;top:0;right:0;bottom:0;left:0;background:linear-gradient(to bottom,transparent 50%,rgba(0,0,0,.05) 50%);background-size:100% 4px;pointer-events:none;z-index:100}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.heart-pulse{animation:pulse 1.5s infinite}.icon-success{color:#39ff14;filter:drop-shadow(0 0 10px #39FF14)}.icon-error{color:var(--neon-magenta)}