*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.draggable-item.active{user-select:text}body{font-family:'Microsoft YaHei',Arial,sans-serif;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:20px;touch-action:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.container{background:white;border-radius:20px;padding:20px;box-shadow:0 20px 60px rgba(0,0,0,0.3);max-width:1200px;width:100%}h1{text-align:center;color:#333;margin-bottom:10px;font-size:24px}.game-area{display:flex;gap:20px;margin-top:15px;flex-direction:column}@media (min-width:768px){.game-area{flex-direction:row}}.canvas-container{flex:2;position:relative;border:3px solid #87CEFA;border-radius:10px;overflow:hidden;touch-action:none;order:1}@media (min-width:768px){.canvas-container{order:1}}.right-section{flex:1;display:flex;flex-direction:column;gap:15px;order:2;border-radius:10px;background-color:#f0f8ff}@media (min-width:768px){.right-section{order:2}}.game-instructions{display:flex;justify-content:space-between;align-items:center;color:#00F;font-size:18px;margin-bottom:0;line-height:1.6;gap:10px;background:#87CEFA;padding:8px;border-radius:10px 10px 0 0;border:1px solid #ADD8E6}.instructions-text{text-align:left;flex:1;white-space:nowrap}.control-buttons{display:flex;align-items:center;gap:10px}.sound-btn,.fullscreen-btn{padding:0;font-size:20px;background:transparent;color:#999;border:none;cursor:pointer;transition:all 0.3s;touch-action:manipulation;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.sound-btn:hover,.fullscreen-btn:hover{color:#666;transform:scale(1.1)}.sound-btn:active,.fullscreen-btn:active{color:#666;transform:scale(0.95)}.info-bar{display:flex;flex-direction:row;align-items:center;justify-content:center;padding:12px;gap:10px;width:100%;flex-wrap:wrap;margin-top:0;background:transparent;border:none;border-radius:0;border-top:1px dashed #2575fc}.timer{font-size:20px;font-weight:bold;color:#667eea;display:none;text-align:center}.start-btn,.reset-btn,.quit-btn{padding:8px 20px;font-size:16px;background:#667eea;color:white;border:none;border-radius:8px;cursor:pointer;transition:all 0.3s;touch-action:manipulation;margin-top:0;margin-bottom:0}.start-btn:active,.reset-btn:active,.quit-btn:active{background:#5568d3;transform:scale(0.95)}.reset-btn,.quit-btn{display:none}.reset-btn.show,.quit-btn.show{display:block}.quit-btn{background:#ff6b6b}.quit-btn:active{background:#ff5252}.draggable-items{display:flex;flex-wrap:wrap;gap:5px;width:100%;justify-content:flex-start;align-items:center}.draggable-item{padding:8px 12px;background:transparent;color:#333;border:none;border-radius:0;cursor:move;font-size:16px;font-weight:bold;text-align:center;box-shadow:none;transition:all 0.3s;user-select:none;touch-action:none;position:relative;pointer-events:none;opacity:0.5;flex:0 0 auto;width:auto;min-width:70px;margin:2px;padding:8px 12px;border:1px dashed #ccc;white-space:nowrap}.draggable-item.active{pointer-events:auto;opacity:1;cursor:grab;border-color:#667eea;user-select:text}.draggable-item.active:active{transform:scale(1.05);cursor:grabbing}.draggable-item.dragging{opacity:0.7;z-index:1000;position:fixed;pointer-events:none;cursor:grabbing;transform:translate(-50%,-50%);border-color:#ff6b6b}.draggable-item.completed{display:none}.completion-message{text-align:center;margin-top:15px;font-size:20px;font-weight:bold;color:#4caf50;display:none;padding:15px;background:#f0f9f4;border-radius:10px}.completion-message.show{display:block;animation:fadeIn 0.5s}.background-layer{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;background-color:#f0f8ff}.background-layer img{width:100%;height:100%;object-fit:contain;display:block}canvas{position:relative;z-index:2;display:block;width:100%;height:auto}.dropped-text{position:absolute;color:#f00;font-weight:bold;font-size:14px;pointer-events:none;text-align:center;animation:dropIn 0.4s ease-out;letter-spacing:1px;z-index:3;transform:translate(-50%,-50%)}@keyframes dropIn{from{opacity:0;transform:translate(-50%,-50%) scale(0.3)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}@keyframes fadeIn{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.touch-indicator{position:fixed;width:60px;height:60px;border:3px solid #667eea;border-radius:50%;pointer-events:none;display:none;z-index:9999;transform:translate(-50%,-50%);background:rgba(102,126,234,0.1)}