body {
  font-family: 'Microsoft YaHei', Arial, sans-serif;
  background: url('../resource/img/dror/微信图片_20250705200003.jpg') no-repeat center center fixed;
  background-size: cover;
  margin: 0;
  padding: 20px;
  color: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.container {
  background-color: rgba(0, 0, 0, 0.7);
  border-radius: 15px;
  padding: 30px;
  max-width: 800px;
  width: 100%;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

h1 {
  text-align: center;
  margin-bottom: 30px;
  font-size: 32px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.notes-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.note-card {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

.note-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
}

.note-img {
  height: 160px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.note-title {
  padding: 15px;
  font-size: 16px;
  text-align: center;
}

a {
  color: #fff;
  text-decoration: none;
}

.footer {
  margin-top: 30px;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.loading {
  text-align: center;
  padding: 20px;
  font-size: 18px;
}

.error-message {
  color: #ff6b6b;
  text-align: center;
  padding: 20px;
}