/* 登录页面样式 */
body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  background-color: #f5f5f5;
}

.login-container {
  max-width: 400px;
  width: 100%;
  background-color: #fff;
  border: 2px solid #000;
  padding: 40px;
  box-shadow: 4px 4px 0 #000;
}

.login-container h1 {
  font-size: 32px;
  margin-bottom: 30px;
  text-align: center;
  font-weight: bold;
}

#login-form {
  margin-bottom: 20px;
}

#login-form input {
  margin-bottom: 15px;
}

#login-form button {
  width: 100%;
  padding: 12px;
  font-size: 18px;
  font-weight: bold;
  margin-top: 10px;
}

.login-container p {
  text-align: center;
  margin-top: 20px;
}

.login-container a {
  font-weight: bold;
}

.message {
  padding: 15px;
  margin-bottom: 20px;
  border: 2px solid #000;
  text-align: center;
}

.message.error {
  background-color: #fee;
  border-color: #d00;
  color: #d00;
}

.message.success {
  background-color: #efe;
  border-color: #0a0;
  color: #0a0;
}

.message.info {
  background-color: #eef;
  border-color: #00a;
  color: #00a;
}

/* 切换表单按钮 */
.form-toggle {
  background: none;
  border: none;
  color: #000;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
  font-size: 16px;
}

.form-toggle:hover {
  background: none;
  color: #000;
  text-decoration: none;
}