/* 智能色号匹配页独有样式 */
body {
  background-color: #f8f9fa !important;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
.color-block {
  width: 300px;
  height: 100px;
  border-radius: 8px;
  margin: 0 auto;
  border: 2px solid #ddd;
}
.upload-area {
  border: 2px dashed #ddd;
  border-radius: 12px;
  padding: 3rem;
  text-align: center;
  background: white;
  cursor: pointer;
  transition: all 0.3s ease;
}
.upload-area:hover {
  border-color: #ff6b6b;
  background: #fff5f5;
}
.spinner-container {
  display: none;
  text-align: center;
  padding: 2rem 0;
}
.rgb-value {
  font-family: 'Courier New', monospace;
  background: #f8f9fa;
  padding: 5px 10px;
  border-radius: 6px;
}
.card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.btn-upload {
  background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
  border: none;
  color: white;
  padding: 10px 25px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.btn-upload:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(255,107,107,0.3);
}
.result-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}
/* 预览图片容器样式，保证等比例缩放 */
.preview-img-container {
  max-width: 100%;
  max-height: 400px; /* 限制最大高度，不压屏 */
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.preview-img-container img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 400px; /* 关键：同时限制宽高，等比例缩放 */
  object-fit: contain; /* 核心：保持图片比例，不拉伸 */
}