/* 表单组合 */
.form { display: flex; flex-direction: column; gap: var(--space-4); }

.form-row {
  display: flex;
  gap: var(--space-4);
}
.form-row > .field { flex: 1; }
@media (max-width: 640px) {
  .form-row { flex-direction: column; gap: 0; }
}

.form-section {
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--border-subtle);
}
.form-section:last-child { border-bottom: none; }
.form-section-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.form-section-desc {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}

.form-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
}
.form-actions-start { justify-content: flex-start; }
.form-actions-between { justify-content: space-between; }

/* 标签组（多选 chip） */
.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-option {
  padding: 8px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--dur-base) var(--ease-out);
  user-select: none;
}
.tag-option:hover { border-color: var(--border-emphasis); color: var(--text-primary); }
.tag-option.is-active {
  background: var(--grad-primary-soft);
  color: var(--accent-primary-2);
  border-color: var(--border-emphasis);
}

/* 文件拖放区 */
.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: var(--space-8);
  background: var(--bg-surface);
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--dur-base) var(--ease-out);
}
.drop-zone:hover, .drop-zone.is-active {
  border-color: var(--border-emphasis);
  background: rgba(72, 230, 199, .04);
}
.drop-zone.is-active { box-shadow: 0 0 0 4px rgba(72, 230, 199, .12); }
.drop-zone-icon {
  width: 48px;
  height: 48px;
  color: var(--accent-primary);
  opacity: .6;
}
.drop-zone-hint {
  font-size: 13px;
  color: var(--text-tertiary);
}