article, aside, details, figcaption, figure, footer, header,
hgroup, menu, nav, section {
  display: block;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #1a1a2e;
  color: #e0e0e0;
  font-family: 'Microsoft YaHei', sans-serif;
  min-height: 100vh;
  text-align: center;
}

h1 {
  text-align: center;
  padding: 20px 0 10px;
  color: #00ff88;
  font-size: 2em;
  text-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

/* ===== 计分板 ===== */
.scoreboard {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin: 10px auto 20px;
}

.score-item {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 10px 25px;
  min-width: 140px;
}

.score-label {
  display: block;
  font-size: 13px;
  color: #888;
  margin-bottom: 5px;
}

.score-value {
  display: block;
  font-size: 28px;
  font-weight: bold;
  color: #00ff88;
  font-family: 'Courier New', monospace;
}

/* ===== 游戏容器 ===== */
.game-container {
  position: relative;
  display: inline-block;
  margin: 0 auto;
}

canvas {
  display: block;
  background-color: #16213e;
  border: 2px solid #0f3460;
  border-radius: 5px;
}

/* ===== 操作说明 ===== */
.controls-info {
  max-width: 500px;
  margin: 15px auto;
}

.controls-info p {
  font-size: 14px;
  color: #888;
  line-height: 1.8;
}

.controls-info strong {
  color: #00ff88;
}

/* ===== 底部署名 ===== */
.credit {
  font-size: 12px;
  color: #555;
  margin: 15px 0 20px;
}

.credit a {
  color: #0f3460;
  text-decoration: none;
}