Repo created

docs/assets/theme/navigation.js

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+document.querySelectorAll('.sidebar-scrollbox .section a[href*="adr"]').forEach(el => {
+    if (el.getAttribute('href').includes('index.html')) {
+        return; // Skip processing for index.html
+    }
+
+    let textNodes = [...el.childNodes].filter(node => node.nodeType === Node.TEXT_NODE && node.nodeValue.trim().length > 0);
+
+    if (textNodes.length > 0) {
+        let textNode = textNodes[0]; // First text node (ignoring elements like <strong>)
+        let text = textNode.nodeValue.trim();
+
+        if (text.length >= 4) {
+            let span = document.createElement("span");
+            span.classList.add("number");
+            span.textContent = text.substring(0, 4);
+
+            textNode.nodeValue = text.substring(4); // Remove first 4 chars from original text node
+
+            el.insertBefore(span, textNode); // Insert the styled first 4 characters before the rest
+        }
+    }
+});