/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 卡片悬浮动画 */
.card-hover {
  transition: transform 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-2px);
}

/* 按钮样式 */
.btn-primary,
.btn-secondary,
.btn-success {
  font-weight: bold;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: #2563eb;
  color: white;
}
.btn-primary:hover {
  background-color: #1d4ed8;
}

.btn-secondary {
  background-color: #f59e0b;
  color: white;
}
.btn-secondary:hover {
  background-color: #d97706;
}

.btn-success {
  background-color: #16a34a;
  color: white;
}
.btn-success:hover {
  background-color: #15803d;
}

/* 输入框样式 */
.input-primary {
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.input-primary:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
  outline: none;
}

/* 结果消息动画 */
.result-animation {
  transition: all 0.7s ease-in-out;
}

/* 响应式调整 */
@media (min-width: 768px) {
  .score-display {
    font-size: 0.9rem;
  }
}