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

body {
  background: rgb(33, 40, 48);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  color: #e0e0e0;
}

/* ----------------------------------------------动态背景---------------------------------------------- */
.背景 {
  position: fixed;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(
      circle at 20% 30%,
      rgba(255, 255, 255, 0.1) 1px,
      transparent 1px
    ),
    radial-gradient(
      circle at 80% 70%,
      rgba(255, 255, 255, 0.1) 1px,
      transparent 1px
    );
  background-size: 3vmin 3vmin;
  animation: starsMove 20s linear infinite;
  z-index: -1;
}

@keyframes starsMove {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 100vmin 50vmin;
  }
}
/* ----------------------------------------------动态背景---------------------------------------------- */

/*  游戏主容器  */
.game-container {
  background-color: rgba(45, 52, 60, 0.9);
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  padding: 30px;
  width: 100%;
  max-width: 600px;
  text-align: center;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 游戏标题样式 */
h1 {
  color: #6bb9f0;
  margin-bottom: 20px;
  font-size: 2rem;
}

/* 9个圆形容器布局 */
.game-board-container {
  display: flex;
  justify-content: center;
  /* margin: 20px 0; */
}

/* 网格布局 */
.game-board {
  display: grid; /* 网格布局 */
  grid-template-columns: repeat(3, 1fr); /* 3列等宽 */
  gap: 15px; /*元素间距 */
}

/* 单个圆形样式 */
.hole {
  width: 120px;
  height: 120px;
  background-color: rgb(60, 70, 80);
  border-radius: 50%;
  position: relative;
  overflow: hidden; /* 隐藏溢出内容 */
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  box-shadow: inset 0 5px 10px rgba(0, 0, 0, 0.5);
}

/* 悬停效果 */
.hole:hover {
  transform: scale(1.05);
}

/* 宝藏样式 */
.mole {
  width: 80%;
  height: 80%;
  position: absolute; /* 绝对定位 */
  bottom: -100%; /* 初始隐藏位置 */
  left: 10%; /* 水平居中 */
  background-image: url(./OIP-C.png);
  background-size: contain; /* 图片适应 */
  background-repeat: no-repeat; /* 禁止重复 */
  transition: bottom 0.3s; /* 上升动画 */
}

/* 宝藏出现 */
.mole.up {
  bottom: 10%;
} /* 上升后位置 */

/* 控制区域布局 */
.controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

/* 难度按钮组布局 */
.difficulty {
  display: flex;
  gap: 20px;
}

button {
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 30px;
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  font-size: 1rem;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
  font-weight: bold;
  min-width: 80px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* 难度按钮特殊样式 */
.difficulty button {
  background: linear-gradient(145deg, #4a89dc, #3b7dd8);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 禁用状态按钮 */
.difficulty button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: #555;
}

/* 开始按钮样式 */
#start {
  background: linear-gradient(145deg, #37bc9b, #2ca189);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 10px 25px;
}

/* 按钮交互状态  */
button:not(:disabled):hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
}

/* 激活按钮 */
button.active {
  background: linear-gradient(145deg, #e9573f, #d6452b);
  border-color: rgba(255, 255, 255, 0.3);
}


/* 得分 */
.score-board {
  display: flex;
  justify-content: space-around;
  margin: 20px 0;
  font-size: 1.2rem;
  background-color: rgba(60, 70, 80, 0.7);
  padding: 15px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 分数显示 */
.score {
  color: #ff6b6b;
  font-weight: bold;
}

/* 时间显示 */
.time {
  color: #6bb9f0;
  font-weight: bold;
}

.规则按钮 {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px; /* 固定宽度 */
  height: 40px; /* 与宽度相同 */
  min-width: 40px; /* 覆盖按钮默认的min-width */
  padding: 0; /* 清除内边距 */
  border-radius: 50%; /* 强制圆形 */
  background: rgb(80, 90, 100);
  color: #6bb9f0;
  border: none;
  font-size: 1.5rem; /* 调整问号大小 */
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
  line-height: 1; /* 确保垂直居中 */
}

.规则按钮:hover {
  background: rgb(90, 100, 110);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
}

 /* 规则窗口 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

 /* 弹窗内容 */
.modal-content {
  background-color: rgb(45, 52, 60);
  padding: 25px;
  border-radius: 15px;
  max-width: 500px;
  width: 90%;
  position: relative;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.close-btn {
  position: absolute;
  top: 15px;
  right: 15px;
  font-size: 1.5rem;
  cursor: url("/Images/Common/鼠标-指向.cur"), pointer;
  color: #aaa;
  background: none;
  border: none;
  width: 30px; /* 固定宽度 */
  height: 30px; /* 与宽度相同 */
  padding: 0; /* 清除内边距 */
  min-width: auto; /* 覆盖全局按钮样式 */
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%; /* 强制圆形 */
  transition: all 0.2s;
  line-height: 1; /* 文字垂直居中 */
}

.close-btn:hover {
  color: #ff6b6b;
  background-color: rgba(255, 255, 255, 0.1);
}

h2 {
  color: #6bb9f0;
  margin-bottom: 15px;
  text-align: center;
}

ul {
  text-align: left;
  padding-left: 20px;
  color: #e0e0e0;
}

li {
  margin-bottom: 15px;
}