body {
  font-family: "Microsoft YaHei", sans-serif;
  background-color: #f5f7fa;
  margin: 0;
  color: #333;
}

header {
  background: #3f83f8;
  color: white;
  text-align: center;
  padding: 15px 0;
}

section {
  background: white;
  margin: 20px auto;
  padding: 15px;
  border-radius: 10px;
  max-width: 800px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

h1, h2 {
  text-align: center;
}

ul {
  list-style: none;
  padding: 0;
}

li {
  border-bottom: 1px solid #eee;
  padding: 8px;
  cursor: pointer;
}

li:hover {
  background-color: #f0f0f0;
}

button {
  background: #3f83f8;
  border: none;
  color: white;
  padding: 8px 12px;
  border-radius: 5px;
  cursor: pointer;
  margin-left: 5px;
}

button:hover {
  background: #3169c3;
}

input, textarea {
  width: 100%;
  margin: 6px 0;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

textarea {
  min-height: 80px;
}

footer {
  text-align: center;
  font-size: 12px;
  color: #888;
  padding: 10px;
}

.checkbox-inline {
  display: flex;          
  align-items: center;    
  gap: 6px;              
  margin: 8px 0;
}

.checkbox-inline input[type="checkbox"] {
  width: auto;
  margin: 0;
}