* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
  width: 100%; height: 100%; overflow: hidden;
  background: #5ec8f2;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
}
#game {
  width: 100%; height: 100%;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
}

#scratch-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 228, 240, 0.92);
  padding: 20px;
  touch-action: auto;
}
#scratch-overlay.hidden { display: none; }

.scratch-panel {
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.scratch-title {
  font-family: PingFang SC, Microsoft YaHei, sans-serif;
  font-size: 24px;
  font-weight: bold;
  color: #ff6b9d;
  margin-bottom: 16px;
}

.scratch-wrap {
  position: relative;
  width: 100%;
  height: 150px;
  border-radius: 16px;
  overflow: hidden;
  border: 3px solid #ff6b9d;
  background: #fff5f8;
  margin: 0 auto;
}

#scratch-bg,
#scratch-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#scratch-bg {
  pointer-events: none;
}

#scratch-canvas {
  touch-action: none;
  cursor: pointer;
}

.scratch-result { margin-top: 20px; }
.scratch-result.hidden { display: none; }

.alipay-guide {
  font-family: PingFang SC, Microsoft YaHei, sans-serif;
  font-size: 16px;
  color: #555;
  line-height: 1.7;
  margin-bottom: 16px;
}
.alipay-guide strong { color: #ff4081; }

.scratch-btn {
  display: block;
  width: 100%;
  border: none;
  border-radius: 999px;
  padding: 14px;
  font-size: 18px;
  font-weight: bold;
  font-family: PingFang SC, Microsoft YaHei, sans-serif;
  margin-bottom: 10px;
  cursor: pointer;
}
.scratch-btn.primary {
  background: linear-gradient(135deg, #ffd700, #ffb347);
  color: #fff;
}
.scratch-btn.secondary {
  background: #eee;
  color: #666;
}
.scratch-copy-tip {
  font-size: 13px;
  color: #4caf50;
  min-height: 18px;
}