body {
  font-family: "Noto Sans SC", sans-serif;
  background-color: #FAFAFA;
  color: #333;
  margin: 0;
  padding: 0;
}
header {
  background: linear-gradient(90deg, #4FC3F7, #FFD54F, #81D4FA);
  color: white;
  padding: 1em;
  text-align: center;
}
nav a {
  margin: 0 1em;
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
}
main {
  padding: 2em;
}
footer {
  background-color: #eee;
  text-align: center;
  padding: 1em;
  font-size: 0.9em;
}


.timeline .entry {
  margin-bottom: 2em;
}
.diary-photo {
  width: 100%;
  max-width: 500px;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  margin-top: 0.5em;
}
.diary-photo:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}


/* 响应式：适配手机屏幕 */
@media (max-width: 600px) {
  header h1 {
    font-size: 1.5em;
  }

  nav a {
    display: block;
    margin: 0.5em 0;
  }

  main {
    padding: 1em;
  }

  img {
    max-width: 100%;
    height: auto;
  }

  section {
    padding: 0.5em 0;
  }

  footer {
    padding: 1em 0.5em;
    font-size: 0.9em;
  }
}