/* 表单控件 */
.input, input[type=text], input[type=password], input[type=number], input[type=date], input[type=email], input[type=search], select, textarea {
  width: 100%; height: 36px; padding: 0 11px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  transition: border-color .15s, box-shadow .15s; box-shadow: var(--shadow-sm);
}
textarea { height: auto; min-height: 80px; padding: 8px 11px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}
input[readonly] { background: var(--surface-2); color: var(--text-2); }
input.num { text-align: right; }
input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--primary); }

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > label { font-size: 13px; font-weight: 500; color: var(--text-2); }
.field > label .req { color: var(--danger); margin-left: 2px; }
.field .help { font-size: 12px; color: var(--text-3); }
.field .err { font-size: 12px; color: var(--danger); }
.field.invalid input, .field.invalid select { border-color: var(--danger); }
.field.check { flex-direction: row; align-items: center; gap: 8px; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 720px) { .form-grid { grid-template-columns: 1fr; } }

.form-actions { display: flex; justify-content: flex-end; gap: 8px; padding-top: 4px; }

/* 异步选择器 */
.picker { position: relative; }
.picker-menu {
  position: absolute; z-index: 80; left: 0; right: 0; top: calc(100% + 4px); max-height: 280px; overflow-y: auto;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 4px;
  min-width: 260px;
}
.picker-menu button {
  display: flex; width: 100%; gap: 8px; align-items: baseline; padding: 7px 10px; border: 0; background: none;
  text-align: left; border-radius: 6px; cursor: pointer;
}
.picker-menu button:hover, .picker-menu button.active { background: var(--primary-soft); }
.picker-menu button small { color: var(--text-3); font-family: var(--mono); font-size: 12px; }
.picker-menu .none { padding: 10px; color: var(--text-3); }