/* 全局样式 */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
}

/* 导航栏样式 */
.navbar {
  /* 修改为深蓝色 */
  background-color: #00008B; 
  color: white;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar a {
  color: white;
  text-decoration: none;
  margin: 0 10px;
}

.navbar a.active {
  font-weight: bold;
}

.search-box input {
  padding: 5px;
  border-radius: 5px;
  border: none;
}

/* 分类容器样式 */
.category-container {
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

/* 分类框样式 */
.category-box {
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  padding: 20px;
  width: 300px;
  transition: transform 0.3s ease;
}

.category-box:hover {
  transform: translateY(-5px);
}

.category-box h2 {
  color: #333;
  margin-top: 0;
}

/* 应用列表样式 */
.app-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 15px;
}

.app-item {
  text-align: center;
}

.app-item img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.app-item p {
  margin: 5px 0 0;
  font-size: 14px;
}

/* 页脚样式 */
.copyright {
  text-align: center;
  /* 修改为深蓝色 */
  padding: 10px;

  background-color: #00008B; 
  color: white;
  font-size: 14px;
}

.download-btn {
  display: inline-block;
  margin-top: 10px;
  padding: 6px 12px;
  /* 修改背景颜色为绿色 */
  background-color: #28a745; 
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.download-btn:hover {
  /* 修改悬停时的背景颜色为更深的绿色 */
  background-color: #218838; 
}