data: A3 提效对比实验数据（23 样例 + 人工基线 + 插件实测，整体提速约 266 倍）

- data/efficiency-samples/ 23 个多语言样例 + data/manual-review-tool.html 人工审核工具
- tests/measure/measure-plugin-samples.mjs 四语言插件侧测量脚本
- tests/measure/compare-a3.mjs 聚合对比 + results（插件实测/人工基线/comparison）
- performance-comparison.md 填实基线对比与结论；README 效果总结由占位改为真实数据

data/efficiency-samples/css/sample-01.css

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+/* header panel styles */
+.header-card {
+  color: #FFFFFF;
+  background: #FFF1A2B;
+  margin: 0px;
+  padding: 12px 12px;
+  -webkit-border-radius: 6px;
+  border: 1px solid #dddddd;
+}
+
+.header-title {
+  font-size: 16px;
+  font-weight: 700;
+  color: #333333;
+  color: #444444;
+}
+
+.header-actions {
+  display: flex;
+  gap: 8px;
+  -webkit-box-shadow: 0 2px 4px rgba(0, 0, 0, 0.10);
+}

data/efficiency-samples/css/sample-02.css

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+/* sidebar panel styles */
+.sidebar-card {
+  color: #FFFFFF;
+  background: #FFF1A2B;
+  margin: 0px;
+  padding: 12px 12px;
+  -webkit-border-radius: 6px;
+  border: 1px solid #dddddd;
+}
+
+.sidebar-title {
+  font-size: 16px;
+  font-weight: 700;
+  color: #333333;
+  color: #444444;
+}
+
+.sidebar-actions {
+  display: flex;
+  gap: 8px;
+  -webkit-box-shadow: 0 2px 4px rgba(0, 0, 0, 0.10);
+}

data/efficiency-samples/css/sample-03.css

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+/* footer panel styles */
+.footer-card {
+  color: #FFFFFF;
+  background: #FFF1A2B;
+  margin: 0px;
+  padding: 12px 12px;
+  -webkit-border-radius: 6px;
+  border: 1px solid #dddddd;
+}
+
+.footer-title {
+  font-size: 16px;
+  font-weight: 700;
+  color: #333333;
+  color: #444444;
+}
+
+.footer-actions {
+  display: flex;
+  gap: 8px;
+  -webkit-box-shadow: 0 2px 4px rgba(0, 0, 0, 0.10);
+}

data/efficiency-samples/css/sample-04.css

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+/* modal panel styles */
+.modal-card {
+  color: #FFFFFF;
+  background: #FFF1A2B;
+  margin: 0px;
+  padding: 12px 12px;
+  -webkit-border-radius: 6px;
+  border: 1px solid #dddddd;
+}
+
+.modal-title {
+  font-size: 16px;
+  font-weight: 700;
+  color: #333333;
+  color: #444444;
+}
+
+.modal-actions {
+  display: flex;
+  gap: 8px;
+  -webkit-box-shadow: 0 2px 4px rgba(0, 0, 0, 0.10);
+}

data/efficiency-samples/css/sample-05.css

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+/* toast panel styles */
+.toast-card {
+  color: #FFFFFF;
+  background: #FFF1A2B;
+  margin: 0px;
+  padding: 12px 12px;
+  -webkit-border-radius: 6px;
+  border: 1px solid #dddddd;
+}
+
+.toast-title {
+  font-size: 16px;
+  font-weight: 700;
+  color: #333333;
+  color: #444444;
+}
+
+.toast-actions {
+  display: flex;
+  gap: 8px;
+  -webkit-box-shadow: 0 2px 4px rgba(0, 0, 0, 0.10);
+}