add _extensions

_extensions/drwater/dwsd/inst/autoscale.js

@@ -0,0 +1,17 @@
+<script>
+document.addEventListener("DOMContentLoaded", function () {
+  const title = document.querySelector("section#title-slide h1.title");
+  if (!title) return;
+
+  const lineHeight = parseFloat(getComputedStyle(title).lineHeight);
+  const maxHeight = lineHeight * 1.5;  // 限制为两行
+
+  let fontSize = parseFloat(getComputedStyle(title).fontSize);
+
+  // 循环缩小字体直到标题高度 <= 两行
+  while (title.scrollHeight > maxHeight && fontSize > 10) {
+    fontSize -= 1;
+    title.style.fontSize = fontSize + "px";
+  }
+});
+</script>