/* 收窄版编辑器：插图选择 */
.illus { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 8px; }
.illus button { padding: 6px; border: 2px solid #ddd; border-radius: 12px; background: #fff; cursor: pointer; font: inherit; font-size: 12px; color: #555; }
.illus button[aria-checked="true"] { border-color: #e64980; box-shadow: 0 0 0 3px rgba(230, 73, 128, .18); }
.illus img { display: block; width: 100%; aspect-ratio: 4 / 5; border-radius: 8px; margin-bottom: 4px; }