.upload-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px;
  font-family: sans-serif;
  color: #333;
}

.upload-tabs {
  display: flex;
  margin-bottom: 16px;
}

.upload-tab {
  flex: 1;
  padding: 8px 16px;
  border: 1px solid #ddd;
  background: #f9f9f9;
  cursor: pointer;
  text-align: center;
}

.upload-tab.active {
  background: #fff;
  border-bottom: 2px solid #1890ff;
  color: #1890ff;
}

.upload-area {
  border: 2px dashed #ccc;
  padding: 40px;
  text-align: center;
  transition: background 0.3s;
}

.upload-area.drag-over {
  background: #eef6ff;
}

.upload-btn {
  margin-top: 16px;
  padding: 8px 24px;
  border: none;
  background: #1890ff;
  color: #fff;
  cursor: pointer;
}

.upload-btn:disabled {
  background: #aaa;
  cursor: not-allowed;
}

/* 如果有 upload-table 相关，用类似方式定义 */
.upload-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
}

.upload-table th,
.upload-table td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: left;
}

.upload-table th {
  background: #f5f5f5;
}

/* 文件预览区域 */
.file-preview-area {
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 40px;
  border: 1px solid #e8eaed;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.preview-title {
  font-size: 16px;
  color: #333;
  margin: 0;
  font-weight: 500;
}

.clear-files-btn {
  background: #ff4757;
  color: white;
  padding: 6px 12px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.2s;
}

.clear-files-btn:hover {
  background: #ff3742;
}

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 16px;
}

.file-item {
  position: relative;
  background: #fff;
  border: 1px solid #e8eaed;
  border-radius: 8px;
  padding: 12px;
  text-align: center;
  transition: all 0.2s;
}

.file-item:hover {
  border-color: #1890ff;
  box-shadow: 0 2px 8px rgba(24, 144, 255, 0.1);
}

.file-item:hover .remove-file-btn {
  opacity: 1;
}

.remove-file-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  background: rgba(255, 71, 87, 0.8);
  color: white;
  border: none;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
  opacity: 0;
  transition: all 0.2s;
  cursor: pointer;
}

.file-thumbnail {
  width: 80px;
  height: 80px;
  border-radius: 6px;
  overflow: hidden;
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9fa;
  position: relative;
}

.file-thumbnail img,
.file-thumbnail video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-thumbnail {
  color: #666;
  position: relative;
}

.video-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.6);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  pointer-events: none;
}

.file-info {
  text-align: center;
  width: 100%;
}

.file-name {
  font-size: 12px;
  color: #333;
  margin-bottom: 4px;
  font-weight: 500;
  word-break: break-all;
}

.file-size {
  font-size: 11px;
  color: #999;
}

/* 进度条 */
.progress-container {
  margin-top: 20px;
  width: 100%;
  max-width: 400px;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background-color: #f0f0f0;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #1890ff, #40a9ff);
  transition: width 0.3s ease;
}

.progress-text {
  text-align: center;
  font-size: 12px;
  color: #666;
}

/* 上传信息区域 */
.upload-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.info-item {
  background: #f8f9fa;
  padding: 16px;
  border-radius: 8px;
  text-align: center;
}

.info-title {
  font-size: 14px;
  color: #333;
  margin-bottom: 8px;
  font-weight: 500;
}

.info-desc {
  font-size: 12px;
  color: #666;
  margin: 0;
}

.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}