body {
  margin: 0;
  overflow: hidden;
  font-family: 'Arial', sans-serif;
}

/* === 3D圆形按钮 === */
.serve-btn, .marbles-btn {
  position: fixed;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: all 0.3s ease;
  box-shadow: 
    0 8px 15px rgba(0, 0, 0, 0.2),
    0 4px 0 rgba(0, 0, 0, 0.2),
    inset 0 -3px 0 rgba(0, 0, 0, 0.1);
  user-select: none;
}

/* 寿司按钮样式 */
.serve-btn {
  bottom: 30px;
  right: 110px;
  background: linear-gradient(135deg, #FF9A8B 0%, #FF6B95 100%);
  color: white;
  text-shadow: 0 2px 3px rgba(0, 0, 0, 0.3);
}

/* 弹珠按钮样式 */
.marbles-btn {
  bottom: 30px;
  right: 30px;
  background: linear-gradient(135deg, #8EC5FC 0%, #E0C3FC 100%);
  color: #5A189A;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

/* 悬停效果 */
.serve-btn:hover, .marbles-btn:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 
    0 12px 20px rgba(0, 0, 0, 0.25),
    0 6px 0 rgba(0, 0, 0, 0.15),
    inset 0 -3px 0 rgba(0, 0, 0, 0.1);
}

/* 点击效果 */
.serve-btn:active, .marbles-btn:active {
  transform: translateY(2px);
  box-shadow: 
    0 4px 10px rgba(0, 0, 0, 0.2),
    0 2px 0 rgba(0, 0, 0, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}

/* 按钮发光效果 */
.serve-btn::after, .marbles-btn::after {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border-radius: 50%;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s;
}

.serve-btn::after {
  background: radial-gradient(circle, rgba(255,107,149,0.5) 0%, rgba(255,107,149,0) 70%);
}

.marbles-btn::after {
  background: radial-gradient(circle, rgba(224,195,252,0.5) 0%, rgba(224,195,252,0) 70%);
}

.serve-btn:hover::after, .marbles-btn:hover::after {
  opacity: 1;
}

/* 手机端适配 */
@media (max-width: 768px) {
  .serve-btn, .marbles-btn {
    width: 50px;
    height: 50px;
    font-size: 20px;
  }
  
  .serve-btn {
    right: 90px;
    bottom: 20px;
  }
  
  .marbles-btn {
    right: 20px;
    bottom: 20px;
  }
}

canvas {
  display: block;
}