优化脚本

core/frontend/src/script-setup.ts

@@ -69,12 +69,12 @@ export function allowedStructures(format: PresentationFormat): VideoStructure[]
   return STRUCTURE_KEYS.filter((key) => !isForbidden(format, key));
 }
 
-// ── 时长:总时长 5–60 秒、5 秒步进;单镜 4–15 秒由后端切,前端只管总时长 ──
+// ── 时长:总时长 15/30/45/60;主流程每镜固定 15 秒 ──
 export const SEGMENT_DURATION_MIN = 4;
 export const SEGMENT_DURATION_MAX = 15;
-export const TOTAL_DURATION_MIN = 5;
+export const TOTAL_DURATION_MIN = 15;
 export const TOTAL_DURATION_MAX = 60;
-export const TOTAL_DURATION_STEP = 5;
+export const TOTAL_DURATION_STEP = 15;
 export const DURATION_OPTIONS: number[] = Array.from(
   { length: (TOTAL_DURATION_MAX - TOTAL_DURATION_MIN) / TOTAL_DURATION_STEP + 1 },
   (_, i) => TOTAL_DURATION_MIN + i * TOTAL_DURATION_STEP
@@ -82,8 +82,8 @@ export const DURATION_OPTIONS: number[] = Array.from(
 
 /** 表现形式推荐的默认总时长:口播短平快 / 短剧要装下三幕 / Vlog 要铺氛围。 */
 const FORMAT_DEFAULT_DURATION: Record<PresentationFormat, number> = { oral: 30, drama: 45, vlog: 30 };
-/** 各结构能压到的最短总时长 —— 低于它证据或氛围就不成立了。 */
-const STRUCTURE_MIN_DURATION: Record<VideoStructure, number> = { pain: 15, contrast: 10, review: 20, scene: 20 };
+/** 各结构能压到的最短总时长 —— 低于它证据或氛围就不成立了。须落在 15 秒步进上。 */
+const STRUCTURE_MIN_DURATION: Record<VideoStructure, number> = { pain: 15, contrast: 15, review: 30, scene: 30 };
 
 export function recommendDuration(format: PresentationFormat, structure: VideoStructure): number {
   return Math.max(FORMAT_DEFAULT_DURATION[format], STRUCTURE_MIN_DURATION[structure]);