/* image-merge 图片拼接 —— 复用 life-calc 卡片结构，本文件只写专有类 */
#app {
    --im-border: #e6e8ee;
    --im-soft: #f5f6f8;
}
@media (max-width: 768px) {
    #app { padding: 0; }
}

.im-lead { color: var(--text-secondary); font-size: 14px; line-height: 1.7; margin: 0 0 16px; }

.im-drop {
    border: 2px dashed var(--im-border);
    border-radius: 14px;
    padding: 28px 18px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background .15s;
    background: #fff;
}
.im-drop:hover, .im-drop:focus { border-color: var(--primary); background: #f7f9ff; outline: none; }
.im-drop-ico { color: var(--primary); margin-bottom: 8px; }
.im-drop-t { font-size: 15px; font-weight: 600; color: var(--text); }
.im-drop-s { font-size: 13px; color: var(--text-dim); margin-top: 4px; }

.im-thumbs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.im-thumb {
    position: relative;
    width: 96px; height: 96px;
    border: 1px solid var(--im-border);
    border-radius: 10px;
    background: var(--im-soft);
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
}
.im-thumb img { max-width: 100%; max-height: 100%; object-fit: contain; display: block; }
.im-thumb .im-idx {
    position: absolute; top: 4px; left: 4px;
    background: rgba(0,0,0,.6); color: #fff;
    font-size: 11px; line-height: 1; padding: 3px 5px; border-radius: 5px;
}
.im-thumb .im-mv {
    position: absolute; bottom: 4px; left: 4px; right: 4px;
    display: flex; justify-content: space-between; gap: 4px;
}
.im-thumb .im-mv button, .im-thumb .im-rm {
    border: none; cursor: pointer; border-radius: 5px;
    background: rgba(255,255,255,.92); color: #333;
    font-size: 12px; line-height: 1; padding: 4px 0; flex: 1;
}
.im-thumb .im-rm {
    position: absolute; top: 4px; right: 4px; left: auto;
    width: 22px; height: 22px; flex: none; padding: 0; color: #c0392b; font-weight: 700;
}

.im-ops { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 16px; align-items: flex-end; }
.im-op { display: flex; flex-direction: column; gap: 6px; }
.im-op label { font-size: 13px; color: var(--text-secondary); font-weight: 600; }
.im-op select, .im-op input {
    border: 1px solid var(--im-border); border-radius: 9px; padding: 8px 10px;
    font-size: 14px; color: var(--text); background: #fff; outline: none; min-width: 96px;
}
.im-op input[type="color"] { padding: 4px; height: 38px; width: 56px; }
.im-op select:focus, .im-op input:focus { border-color: var(--primary); }

.im-preview { margin-top: 16px; border-top: 1px solid var(--im-border); padding-top: 14px; }
.im-preview-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.im-preview-head > span:first-child { font-weight: 600; color: var(--text); }
.im-stat { font-size: 12px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.im-canvas {
    max-width: 100%; height: auto; border: 1px solid var(--im-border);
    border-radius: 10px; background:
        repeating-conic-gradient(#eee 0% 25%, #fff 0% 50%) 50% / 18px 18px;
    display: block;
}

.im-notes { margin: 0; padding-left: 20px; color: var(--text-secondary); font-size: 14px; line-height: 1.9; }
.im-notes li { margin-bottom: 4px; }