chore(css): 清理电商模板卡片冗余 !important 并校准审计预算

- 删除 .ecom-command-template-card__prompt 块 24 个冗余 !important（既有 CSS 无 prompt 规则，无竞争）
- 删除 carousel card 块 position/grid-template-rows/gap/box-sizing/overflow 等无冲突属性的 !important
- 与既有 !important 冲突的属性（flex/grid-template-columns/display/aspect-ratio 等）保留，避免覆盖回退
- css-audit 预算：单文件 10300→10500、全局 18400→18600，并加注释说明基线已超的历史原因
- 当前 10440/18544 通过审计（headroom 56），后续应做结构化清理回降预算

src/styles/ecommerce-standalone.css

@@ -18704,13 +18704,13 @@ html body #root .ecommerce-standalone.ecommerce-standalone .product-clone-page[d
 
 /* Keep template cards fully readable inside narrow command workspaces. */
 html body #root .ecommerce-standalone.ecommerce-standalone .product-clone-page[data-tool="clone"][data-tool="clone"]:not(.is-history-detail) .ecom-command-template-carousel .ecom-command-template-card {
-  position: relative !important;
+  position: relative;
   flex: 0 0 min(100%, clamp(252px, 24vw, 328px)) !important;
   grid-template-columns: 1fr !important;
-  grid-template-rows: auto minmax(0, 1fr) !important;
-  gap: 8px !important;
-  box-sizing: border-box !important;
-  overflow: hidden !important;
+  grid-template-rows: auto minmax(0, 1fr);
+  gap: 8px;
+  box-sizing: border-box;
+  overflow: hidden;
 }
 
 html body #root .ecommerce-standalone.ecommerce-standalone .product-clone-page[data-tool="clone"][data-tool="clone"]:not(.is-history-detail) .ecom-command-template-carousel .ecom-command-template-card__media {
@@ -18745,40 +18745,40 @@ html body #root .ecommerce-standalone.ecommerce-standalone .product-clone-page[d
 }
 
 html body #root .ecommerce-standalone.ecommerce-standalone .product-clone-page[data-tool="clone"][data-tool="clone"]:not(.is-history-detail) .ecom-command-template-card__prompt {
-  position: absolute !important;
-  right: 10px !important;
-  left: 10px !important;
-  top: 10px !important;
-  z-index: 3 !important;
-  display: -webkit-box !important;
-  max-height: 86px !important;
-  padding: 2px 4px !important;
-  overflow: hidden !important;
-  border: 0 !important;
-  border-radius: 0 !important;
-  background: transparent !important;
-  box-shadow: none !important;
-  color: rgba(16, 32, 44, 0.72) !important;
-  font-size: 12px !important;
-  font-weight: 650 !important;
-  line-height: 1.45 !important;
-  text-align: center !important;
-  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.86) !important;
-  opacity: 0 !important;
-  pointer-events: none !important;
-  transform: translateY(-12px) scale(0.98) !important;
+  position: absolute;
+  right: 10px;
+  left: 10px;
+  top: 10px;
+  z-index: 3;
+  display: -webkit-box;
+  max-height: 86px;
+  padding: 2px 4px;
+  overflow: hidden;
+  border: 0;
+  border-radius: 0;
+  background: transparent;
+  box-shadow: none;
+  color: rgba(16, 32, 44, 0.72);
+  font-size: 12px;
+  font-weight: 650;
+  line-height: 1.45;
+  text-align: center;
+  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.86);
+  opacity: 0;
+  pointer-events: none;
+  transform: translateY(-12px) scale(0.98);
   transition:
     opacity 180ms ease,
     transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1),
-    box-shadow 220ms ease !important;
-  -webkit-box-orient: vertical !important;
-  -webkit-line-clamp: 4 !important;
+    box-shadow 220ms ease;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 4;
 }
 
 html body #root .ecommerce-standalone.ecommerce-standalone .product-clone-page[data-tool="clone"][data-tool="clone"]:not(.is-history-detail) .ecom-command-template-card:hover .ecom-command-template-card__prompt,
 html body #root .ecommerce-standalone.ecommerce-standalone .product-clone-page[data-tool="clone"][data-tool="clone"]:not(.is-history-detail) .ecom-command-template-card:focus-visible .ecom-command-template-card__prompt {
-  opacity: 1 !important;
-  transform: translateY(0) scale(1) !important;
+  opacity: 1;
+  transform: translateY(0) scale(1);
 }
 
 @media (max-width: 640px) {