修改：相框标题显示18字符

src/views/cartoon/index.vue

@@ -348,12 +348,12 @@ const getCharUnits = (str: string) => {
 
 // 限制最多 12 个字符单位：中文占2个，英文/数字/空格/符号占1个
 const scenePropInputText = (val: string) => {
-  if (getCharUnits(val) > 12) {
+  if (getCharUnits(val) > 18) {
     let units = 0
     let i = 0
     for (; i < val.length; i++) {
       const add = /[\u4e00-\u9fff\u3400-\u4dbf]/.test(val[i]) ? 2 : 1
-      if (units + add > 12) break
+      if (units + add > 18) break
       units += add
     }
     val = val.slice(0, i)