:root{font-family:Microsoft YaHei,PingFang SC,Hiragino Sans GB,sans-serif;line-height:1.5;font-weight:400;--primary-color: #d4af37;--secondary-color: #8b4513;--text-color: #f5f5dc;--bg-color: #1a1a1a;--overlay-bg: rgba(0, 0, 0, .7)}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;padding:0;overflow:hidden;background:var(--bg-color);color:var(--text-color);font-family:inherit}#app{width:100vw;height:100vh;position:relative}#loading-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#1a1a1a,#2d2d2d);display:flex;align-items:center;justify-content:center;z-index:1000}.loading-content{text-align:center;color:var(--text-color)}.loading-content h1{font-size:3rem;color:var(--primary-color);margin-bottom:2rem;text-shadow:2px 2px 4px rgba(0,0,0,.5)}.loading-spinner{width:50px;height:50px;border:3px solid rgba(212,175,55,.3);border-top:3px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}#game-container{width:100%;height:100%;position:relative}#three-canvas{display:block;width:100%;height:100%}#ui-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:100}#lyrics-display{position:absolute;bottom:20%;left:50%;transform:translate(-50%);background:var(--overlay-bg);padding:20px 40px;border-radius:10px;border:2px solid var(--primary-color);color:var(--text-color);font-size:1.2rem;text-align:center;max-width:80%;opacity:0;transition:opacity .5s ease-in-out;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}#lyrics-display.show{opacity:1}#controls-panel{position:absolute;top:20px;right:20px;display:flex;flex-direction:column;gap:10px;pointer-events:auto}#controls-panel button{width:50px;height:50px;border:none;border-radius:50%;background:var(--overlay-bg);color:var(--text-color);font-size:1.2rem;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid transparent}#controls-panel button:hover{background:var(--primary-color);border-color:var(--secondary-color);transform:scale(1.1)}#lyrics-display.glow-effect{text-shadow:0 0 10px var(--primary-color),0 0 20px var(--primary-color),0 0 30px var(--primary-color);animation:glow 2s ease-in-out infinite alternate}@keyframes glow{0%{text-shadow:0 0 10px var(--primary-color),0 0 20px var(--primary-color),0 0 30px var(--primary-color)}to{text-shadow:0 0 20px var(--primary-color),0 0 30px var(--primary-color),0 0 40px var(--primary-color)}}#lyrics-display.shake-effect{animation:shake .5s ease-in-out infinite}@keyframes shake{0%,to{transform:translate(-50%) translateY(0)}25%{transform:translate(-50%) translateY(-2px)}75%{transform:translate(-50%) translateY(2px)}}#lyrics-display.fade-effect{animation:fadeInOut 3s ease-in-out infinite}@keyframes fadeInOut{0%,to{opacity:.5}50%{opacity:1}}.settings-panel{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--overlay-bg);border:2px solid var(--primary-color);border-radius:10px;padding:20px;z-index:1000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);min-width:300px}.settings-content h3{color:var(--primary-color);margin-bottom:20px;text-align:center}.setting-group{margin-bottom:15px;display:flex;align-items:center;justify-content:space-between}.setting-group label{color:var(--text-color);font-size:.9rem;min-width:100px}.setting-group input[type=range]{flex:1;margin:0 10px;accent-color:var(--primary-color)}.setting-group input[type=checkbox]{margin-left:10px;accent-color:var(--primary-color)}.setting-group span{color:var(--primary-color);font-size:.8rem;min-width:40px;text-align:right}.setting-buttons{display:flex;gap:10px;margin-top:20px}.setting-buttons button{flex:1;padding:8px 16px;border:none;border-radius:5px;background:var(--primary-color);color:var(--bg-color);cursor:pointer;transition:all .3s ease}.setting-buttons button:hover{background:var(--secondary-color);transform:translateY(-2px)}.notification{font-family:inherit;font-size:.9rem;box-shadow:0 4px 12px #0000004d}.performance-panel{position:fixed;top:20px;left:20px;background:var(--overlay-bg);border:2px solid var(--primary-color);border-radius:8px;padding:15px;z-index:1000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);min-width:200px}.performance-content h4{color:var(--primary-color);margin-bottom:10px;text-align:center;font-size:1rem}.performance-stats{margin-bottom:15px}.stat-item{display:flex;justify-content:space-between;margin-bottom:5px;font-size:.8rem}.stat-label{color:var(--text-color)}.stat-value{color:var(--primary-color);font-weight:700}.performance-controls{display:flex;flex-direction:column;gap:5px}.performance-controls button{padding:5px 10px;border:none;border-radius:3px;background:var(--primary-color);color:var(--bg-color);cursor:pointer;font-size:.7rem;transition:all .3s ease}.performance-controls button:hover{background:var(--secondary-color)}@media (max-width: 768px){.loading-content h1{font-size:2rem}#lyrics-display{font-size:1rem;padding:15px 25px;max-width:90%}#controls-panel{top:10px;right:10px}#controls-panel button{width:40px;height:40px;font-size:1rem}.settings-panel{min-width:280px;padding:15px}.setting-group{flex-direction:column;align-items:flex-start;gap:5px}.setting-group input[type=range]{width:100%;margin:5px 0}}