body {
  margin: 0;
  font-family: "Microsoft YaHei", sans-serif;
  background-color: #f0fdf4;
  color: #064e3b;
}

header {
  background: linear-gradient(90deg, #34d399, #10b981);
  color: white;
  text-align: center;
  padding: 2em 1em;
  border-radius: 0 0 2em 2em;
}

h1 {
  margin-bottom: 0.3em;
}

nav {
  margin-top: 0.5em;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 0 1em;
  padding: 0.3em 0.8em;
  border-radius: 8px;
  transition: 0.3s;
}

nav a:hover, nav a.active {
  background-color: rgba(255, 255, 255, 0.2);
}

#searchInput {
  margin-top: 1em;
  padding: 0.5em 1em;
  border: none;
  border-radius: 20px;
  width: 60%;
  max-width: 400px;
  font-size: 1em;
}

main {
  max-width: 800px;
  margin: 2em auto;
  padding: 1em;
}

article {
  background: white;
  border: 1px solid #d1fae5;
  border-radius: 12px;
  margin-bottom: 1.5em;
  padding: 1em;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  transition: 0.3s;
}

article:hover {
  transform: scale(1.02);
}

a {
  color: #047857;
  text-decoration: none;
}

footer {
  text-align: center;
  margin: 2em 0;
  color: #6b7280;
}