/* 登录页面美化 */
body {
  background: linear-gradient(135deg, #e0e7ff 0%, #f3f4f6 100%);
  min-height: 100vh;
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

#app.content {
  background: rgba(255,255,255,0.95);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(60,60,120,0.12);
  padding: 40px 32px 32px 32px;
  max-width: 350px;
  width: 100%;
  margin: 0; /* 居中时去除顶部外边距 */
  box-sizing: border-box;
}

.el-form {
  margin-top: 0;
}

.el-form-item__label {
  font-size: 16px;
  color: #374151;
  font-weight: 500;
}

.el-input__wrapper {
  border-radius: 8px;
  border: 1px solid #c7d2fe;
  background: #f9fafb;
  transition: border-color 0.2s;
}
.el-input__wrapper:focus-within {
  border-color: #6366f1;
}

.el-button--primary {
  background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
  border: none;
  border-radius: 8px;
  font-weight: 600;
  letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(99,102,241,0.08);
  transition: background 0.2s;
}
.el-button--primary:hover {
  background: linear-gradient(90deg, #818cf8 0%, #6366f1 100%);
}

.el-alert {
  border-radius: 8px;
  margin-top: 16px;
}

@media (max-width: 500px) {
  body {
    align-items: flex-start;
    justify-content: center;
  }
  #app.content {
    margin-top: 40px;
    padding: 24px 8px 16px 8px;
    max-width: 98vw;
  }
}