/* AB隐藏图生成器 */
.abi-grid { display: grid; grid-template-columns: 400px minmax(0, 1fr); gap: 20px; align-items: start; }
.abi-panel { background: var(--bg); border: 1px solid var(--rule); border-radius: var(--radius-md); padding: 20px; }
.abi-section { margin-bottom: 18px; }
.abi-section:last-child { margin-bottom: 0; }
.abi-section h3 { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: .95rem; margin: 0 0 12px; }
.abi-section h3 i { color: var(--accent); }

.abi-upload-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.abi-upload { border: 2px dashed var(--rule); border-radius: var(--radius-md); padding: 16px; text-align: center; cursor: pointer; transition: all .2s ease; background: var(--bg2); position: relative; }
.abi-upload:hover { border-color: var(--accent); }
.abi-upload p { margin: 6px 0 10px; font-size: .85rem; color: var(--muted); }
.abi-tag { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .72rem; font-weight: 700; color: #fff; }
.abi-tag-a { background: linear-gradient(135deg, #667eea, #764ba2); }
.abi-tag-b { background: linear-gradient(135deg, #2b32b2, #1488cc); }
.abi-upload .btn { font-size: .8rem; padding: 5px 12px; }
.abi-upload img { margin-top: 8px; max-width: 100%; max-height: 90px; border-radius: var(--radius-sm); border: 1px solid var(--rule); display: block; margin-left: auto; margin-right: auto; }
.abi-upload.has-file { border-color: var(--accent); background: var(--accent-soft); }

.abi-form-group { margin-bottom: 14px; }
.abi-form-group > label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 6px; }
.abi-form-group input[type="text"] { width: 100%; padding: 9px 12px; border: 1px solid var(--rule); border-radius: var(--radius-sm); background: var(--bg); color: var(--ink); font-size: .9rem; box-sizing: border-box; }
.abi-form-group input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.abi-form-group input[type="range"] { width: 100%; accent-color: var(--accent); }
.abi-checkbox { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: .85rem; color: var(--ink); }
.abi-checkbox input { accent-color: var(--accent); }
.abi-color-group { display: flex; gap: 8px; }
.abi-color-group input[type="color"] { width: 42px; height: 38px; padding: 2px; border: 1px solid var(--rule); border-radius: var(--radius-sm); background: var(--bg); cursor: pointer; flex-shrink: 0; }
.abi-color-group input[type="text"] { flex: 1; min-width: 0; }
.abi-form-hint { font-size: .75rem; color: var(--muted); margin: 6px 0 0; display: flex; align-items: flex-start; gap: 4px; }
.abi-actions { display: flex; gap: 10px; }
.abi-actions .btn { flex: 1; justify-content: center; }

.abi-slider-row { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.abi-slider-row input[type="range"] { flex: 1; accent-color: var(--accent); }
.abi-slider-label { display: inline-flex; align-items: center; gap: 4px; font-size: .8rem; color: var(--muted); flex-shrink: 0; }

.abi-preview-box { min-height: 420px; display: flex; align-items: center; justify-content: center; background: var(--bg2); border: 1px dashed var(--rule); border-radius: var(--radius-sm); padding: 20px; overflow: auto; }
.abi-preview-holder { max-width: 100%; }
.abi-preview-holder img { display: block; max-width: 100%; height: auto; }
.abi-placeholder { text-align: center; color: var(--muted); }
.abi-placeholder i { font-size: 3rem; color: var(--accent); display: block; margin-bottom: 12px; opacity: .7; }
.abi-preview-buttons { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.abi-preview-buttons .btn { justify-content: center; }
.abi-preview-buttons .btn-primary { flex: 1; min-width: 140px; }

@media (max-width: 900px) {
  .abi-grid { grid-template-columns: 1fr; }
  .abi-upload-row { grid-template-columns: 1fr; }
  .abi-preview-buttons { flex-direction: column; }
}