.grd{display:flex;flex-direction:column;gap:20px}.grd__preview{padding:16px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg-soft, rgba(0, 0, 0, .03));overflow:hidden}.grd__stage{min-height:280px;padding:16px;border:2px dashed var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg)}.grd__item{position:relative;display:flex;align-items:center;justify-content:center;min-width:48px;min-height:56px;padding:10px 14px;border-radius:var(--radius-sm);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,outline-color .15s ease;outline:2px solid transparent;outline-offset:2px;user-select:none}.grd__item:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.grd__item:focus-visible{outline-color:var(--color-primary, #2b6cff)}.grd__item--selected{outline-color:var(--color-primary, #2b6cff);box-shadow:0 0 0 4px #2b6cff33}.grd__item-label{pointer-events:none}.grd__item-badge{position:absolute;top:4px;right:4px;padding:1px 6px;border-radius:8px;background:#ffffff40;color:#fff;font-size:10px;font-weight:500;pointer-events:none}.grd__item-remove{position:absolute;top:-8px;right:-8px;width:22px;height:22px;display:flex;align-items:center;justify-content:center;padding:0;border:1px solid var(--color-border);border-radius:50%;background:var(--color-bg);color:var(--color-text);font-size:14px;line-height:1;cursor:pointer;transition:background .15s,color .15s}.grd__item-remove:hover:not(:disabled){background:var(--color-danger, #e53e3e);color:#fff;border-color:var(--color-danger, #e53e3e)}.grd__item-remove:disabled{opacity:.4;cursor:not-allowed}.grd__presets{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 16px;background:var(--color-bg-soft, rgba(0, 0, 0, .03));border:1px solid var(--color-border);border-radius:var(--radius-md)}.grd__presets-label{font-size:14px;font-weight:600;color:var(--color-text)}.grd__btn{padding:6px 14px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);font-size:13px;cursor:pointer;transition:background .15s,border-color .15s}.grd__btn:hover:not(:disabled){border-color:var(--color-primary, #2b6cff)}.grd__btn:disabled{opacity:.5;cursor:not-allowed}.grd__btn--add{align-self:flex-start;margin-top:8px;padding:8px 18px;border-style:dashed;color:var(--color-primary, #2b6cff)}.grd__btn--add-track{padding:3px 10px;font-size:12px;color:var(--color-primary, #2b6cff);border-style:dashed}.grd__btn--remove-track{padding:0;width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:14px;line-height:1}.grd__btn--remove-track:hover:not(:disabled){background:var(--color-danger, #e53e3e);color:#fff;border-color:var(--color-danger, #e53e3e)}.grd__panels{display:grid;grid-template-columns:1fr 1fr;gap:16px}.grd__panel{padding:16px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);display:flex;flex-direction:column;gap:14px}.grd__panel-title{margin:0 0 4px;padding-bottom:8px;border-bottom:1px solid var(--color-border);font-size:15px;font-weight:700;color:var(--color-text)}.grd__panel-sub{font-size:13px;font-weight:500;color:var(--color-text-soft)}.grd__empty{margin:0;padding:20px;text-align:center;color:var(--color-text-soft);font-style:italic}.grd__field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--color-text)}.grd__field--disabled{opacity:.5;pointer-events:none}.grd__field-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.grd__field-label{font-weight:600;display:flex;align-items:center;gap:6px}.grd__field-label output{font-family:var(--font-mono);font-size:12px;color:var(--color-text-soft);font-weight:500}.grd__field input[type=range]{width:100%;accent-color:var(--color-primary, #2b6cff)}.grd__btn-group{display:flex;flex-wrap:wrap;gap:4px}.grd__btn-option{padding:5px 12px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);font-size:12px;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.grd__btn-option:hover:not(:disabled){border-color:var(--color-primary, #2b6cff)}.grd__btn-option--active{background:var(--color-primary, #2b6cff);border-color:var(--color-primary, #2b6cff);color:#fff}.grd__btn-option:disabled{opacity:.5;cursor:not-allowed}.grd__track{display:flex;align-items:center;gap:6px;padding:6px 8px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg)}.grd__track-index{flex-shrink:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--color-bg-soft, rgba(0, 0, 0, .06));color:var(--color-text-soft);font-size:11px;font-weight:700}.grd__btn-group--track{flex:0 0 auto}.grd__btn-option--track{padding:3px 8px;font-size:11px;font-family:var(--font-mono)}.grd__track-input{flex:1;min-width:0;padding:4px 8px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);font-family:var(--font-mono);font-size:12px}.grd__track-input:focus{outline:2px solid var(--color-primary, #2b6cff);outline-offset:1px}.grd__track-auto{flex:1;color:var(--color-text-soft);font-size:12px;font-style:italic}.grd__track-empty{margin:0;padding:8px 12px;color:var(--color-text-soft);font-size:12px;font-style:italic;background:var(--color-bg-soft, rgba(0, 0, 0, .03));border-radius:var(--radius-sm)}.grd__output{padding:16px;background:var(--color-bg-soft, rgba(0, 0, 0, .03));border:1px solid var(--color-border);border-radius:var(--radius-md)}.grd__output-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.grd__output-label{font-size:14px;font-weight:600;color:var(--color-text)}.grd__code{margin:0;padding:12px 14px;background:var(--color-bg);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:14px;color:var(--color-text);white-space:pre-wrap;word-break:break-all;line-height:1.5}.grd__hint{margin:8px 0 0;font-size:13px;color:var(--color-text-soft)}@media(prefers-color-scheme:dark){.grd__panel,.grd__code,.grd__stage{background:#ffffff0a}.grd__item-remove,.grd__btn--remove-track{background:#0006}}@media(max-width:768px){.grd__panels{grid-template-columns:1fr}.grd__stage{min-height:200px}}@media(max-width:414px){.grd__presets{flex-direction:column;align-items:stretch}.grd__presets-label{text-align:center}.grd__btn-group{flex-direction:column;align-items:stretch}.grd__btn-option{width:100%}.grd__btn-group--track{flex-direction:row;flex-wrap:wrap}.grd__btn-option--track{width:auto}.grd__track{flex-wrap:wrap}}