:root{--bg-dark: #0f172a;--text-light: #f8fafc;--accent-gold: #facc15;--accent-red: #ef4444;--glass-bg: rgba(15, 23, 42, .6);--glass-border: rgba(255, 255, 255, .1)}body{margin:0;padding:0;background-color:#000;color:var(--text-light);font-family:STKaiti,KaiTi,serif;display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden;-webkit-user-select:none;user-select:none}.app-container{position:relative;width:100%;height:100vh;display:flex;justify-content:center;align-items:center;background:radial-gradient(circle at center,#1e293b,#000)}.cloud-sync-badge{position:absolute;top:16px;left:16px;display:flex;align-items:center;gap:6px;font-size:12px;color:#ffffff80;z-index:100;background:#0000004d;padding:4px 10px;border-radius:20px;border:1px solid rgba(255,255,255,.1)}.cloud-toast{position:fixed;top:20px;left:50%;transform:translate(-50%);background:#10b981e6;color:#fff;padding:8px 16px;border-radius:20px;font-size:14px;z-index:1000;animation:fadeOut 2s forwards}@keyframes fadeOut{0%{opacity:1;transform:translate(-50%)}70%{opacity:1;transform:translate(-50%)}to{opacity:0;transform:translate(-50%,-20px)}}.game-wrapper{position:relative;width:400px;height:600px;background-color:var(--bg-dark);border-radius:12px;overflow:hidden;box-shadow:0 0 40px #000c,0 0 0 1px var(--glass-border)}.game-canvas{display:block;width:100%;height:100%;touch-action:none}.overlay{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;background:var(--glass-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:10}.title-container{text-align:center;margin-bottom:40px}.game-title{font-size:48px;margin:0;background:linear-gradient(to bottom,#fff,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 4px 12px rgba(0,0,0,.5);letter-spacing:4px}.game-subtitle{font-size:18px;color:var(--accent-red);margin-top:8px;letter-spacing:2px}.high-score-box{display:flex;align-items:center;gap:10px;background:#0006;padding:12px 24px;border-radius:30px;border:1px solid rgba(250,204,21,.3);margin-bottom:40px;font-size:18px;color:var(--accent-gold)}.btn-primary{display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,#1e293b,#0f172a);color:#fff;border:1px solid rgba(255,255,255,.2);padding:14px 32px;font-size:20px;border-radius:8px;cursor:pointer;transition:all .2s;font-family:inherit;box-shadow:0 4px 12px #0000004d}.btn-primary:hover{background:linear-gradient(135deg,#334155,#1e293b);border-color:#fff6;transform:translateY(-2px)}.btn-primary:active{transform:translateY(0)}.hint-text{margin-top:24px;font-size:14px;color:#94a3b8;text-align:center;line-height:1.6}.loading-text{color:#94a3b8;font-size:16px;animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:.5}50%{opacity:1}}.hud{position:absolute;top:0;left:0;width:100%;padding:16px;display:flex;justify-content:space-between;align-items:flex-start;box-sizing:border-box;pointer-events:none;z-index:5}.lives{display:flex;gap:4px}.heart-active{filter:drop-shadow(0 0 4px rgba(239,68,68,.8))}.heart-lost{color:#334155;opacity:.5}.score-display{font-size:28px;font-weight:700;color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.8);font-family:monospace}.screen-gameover{background:#0f172ad9}.gameover-title{font-size:40px;color:var(--accent-red);margin:0 0 20px;letter-spacing:4px}.final-score{text-align:center;background:#00000080;padding:20px 40px;border-radius:16px;border:1px solid var(--glass-border)}.final-score p{margin:0 0 10px;color:#94a3b8}.score-number{font-size:48px;color:var(--accent-gold);font-weight:700}.new-record-badge{margin-top:10px;font-size:14px;color:#10b981;background:#10b9811a;padding:4px 12px;border-radius:12px;border:1px solid rgba(16,185,129,.3)}.mt-6{margin-top:24px}.mb-4{margin-bottom:16px}