workspace/code/file-preview/custom-file/index.css

/* 整体布局 */
.g3-file-container {
  height: 100%;
  display: flex;
  flex-direction: column;

  background: #ffffff;

  overflow: hidden;
}

.g3-file-container .header {
  display: flex;
  align-items: center;

  padding: 10px 14px;

  background: #fafbfc;
  border-bottom: 1px solid #eef0f2;
}

.g3-file-container .main {
  flex: 1;
  min-height: 0;

  overflow: auto;

  display: flex;
  flex-wrap: wrap;

  align-items: flex-start;
  /* justify-content: center; */
}

.g3-file-container .main > * {
  margin: 7px;
}

.g3-file-container .empty-tip {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #999;
}

.g3-file-container .footer {
  display: flex;
  align-items: center;
  justify-content: space-between;

  padding: 10px 14px;

  background: #fafbfc;
  border-top: 1px solid #eef0f2;
}

.g3-file-container .header,
.g3-file-container .footer {
  flex-shrink: 0;
}

.footer div {
  display: flex;
  align-items: center;
}

.footer .pending-count {
  margin-right: 12px;
  font-size: 14px;
}

.footer .pending-count .pending-number {
  margin-left: 4px;
}

/* 全选 */
.g3-file-container .check-all {
  display: flex;
  align-items: center;
  margin-right: 12px;
  font-size: 14px;
  cursor: pointer;
}

.g3-file-container .check-all input {
  width: 16px;
  height: 16px;
}

.g3-file-container .check-all span {
  margin-left: 4px;
}

/* 按钮 */
.g3-file-container button {
  font-size: 13px;
  border-radius: 4px;
  background: #165dff;
  color: #fff;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  width: auto;

  height: 28px;
  line-height: 1;
  padding: 0 15px;

  display: flex;
  align-items: center;
  justify-content: center;
}

.g3-file-container button svg {
  margin-right: 4px;
}

.g3-file-container button + button {
  margin-left: 12px;
}

.g3-file-container button:hover:not(:disabled) {
  filter: brightness(1.2);
}

.g3-file-container button:active:not(:disabled) {
  filter: brightness(0.9);
}

.g3-file-container button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.g3-file-container .delete-all {
  background: #ff4d4f;
}

.g3-file-container .file-item {
  width: calc(50% - 20px);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.18s ease;

  border: 1px solid #eef0f2;
  border-radius: 6px;
  background: #fff;

  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.g3-file-container .file-item:hover {
  border-color: #d6e4ff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.file-item .file-preview {
  height: 120px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-item .file-preview svg,
.file-item .file-preview img {
  width: 100%;
  height: 100%;
}

.file-item .file-checkbox {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 16px;
  height: 16px;
}

.file-item .file-info {
  padding: 10px 10px 12px;
  font-size: 12px;
  color: #999;
  line-height: 1.4;

  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
  box-sizing: border-box;
}

.file-item .file-info span {
  display: block;
  width: 100%;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-item .file-info .file-name {
  font-size: 13px;
  color: #1f2937;
  font-weight: 600;
}

.file-item .file-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-bottom: 8px;
  margin-right: 8px;
}

.file-item .file-action {
  width: 24px;
  height: 24px;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 6px;

  /* 👇 稍微更明显 */
  background: rgba(0, 0, 0, 0.06);

  margin-left: 6px;

  color: rgba(0, 0, 0, 0.6);

  cursor: pointer;
  transition: all 0.2s ease;
}

/* hover：明显增强 */
.file-item .file-action:hover {
  background: rgba(22, 93, 255, 0.12);
  color: #165dff;
}

/* active：点击反馈 */
.file-item .file-action:active {
  background: rgba(22, 93, 255, 0.18);
  transform: scale(0.96);
}

.file-item .file-action.is-disabled {
  opacity: 0.4;
  pointer-events: none;
  cursor: not-allowed;
}

.g3-download-modal {
  position: absolute;
  inset: 0;
  z-index: 9999;
}

.g3-download-mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
}

.g3-download-box {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  width: 260px;
  text-align: center;
}

.g3-download-bar {
  height: 6px;
  background: #eee;
  border-radius: 4px;
  margin-top: 10px;
  overflow: hidden;
}

.g3-download-bar-inner {
  height: 100%;
  width: 0%;
  background: #4caf50;
  transition: width 0.2s;
}

/* 文件项选中样式 */
.g3-file-container .file-item.file-item-selected {
  border-color: #165dff;
  box-shadow: 0 0 0 2px rgba(22, 93, 255, 0.2);
  background: rgba(22, 93, 255, 0.05);
}

.g3-file-container .file-item.file-item-selected:hover {
  border-color: #165dff;
  box-shadow: 0 6px 18px rgba(22, 93, 255, 0.2);
  transform: translateY(-2px);
}

/* 未上传标记 */
.file-item .file-pending-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #ff9800;
  color: white;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  z-index: 1;
}

/* 预览状态样式 */
.g3-file-container .file-item.file-item-preview {
  border-color: #4caf50;
  box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
  background: rgba(76, 175, 80, 0.05);
}

.g3-file-container .file-item.file-item-preview:hover {
  border-color: #4caf50;
  box-shadow: 0 6px 18px rgba(76, 175, 80, 0.2);
}