散 is at the center, not 心, at present.

script.js

@@ -32,8 +32,8 @@ const fullGrid = [
 ];
 // Character information with meanings
 const characterInfo = {
-    "心": { pinyin: "xīn", meaning: "Heart; Mind; Core essence; Central consciousness", color: "red" },
-    "仁": { pinyin: "rén", meaning: "Benevolence; Kindness; Humanity; Human-heartedness", color: "red" },
+    "散": { pinyin: "sàn", meaning: "Scatter; Disperse; Break up; Relax", color: "red" },
+"仁": { pinyin: "rén", meaning: "Benevolence; Kindness; Humanity; Human-heartedness", color: "red" },
     "智": { pinyin: "zhì", meaning: "Wisdom; Knowledge; Consciousness; Insight", color: "red" },
     "懷": { pinyin: "huái", meaning: "Embrace; Cherish; Nostalgic feelings; Reminiscence", color: "red" },
     "德": { pinyin: "dé", meaning: "Virtue; Moral character; Excellence; Inherent nature", color: "red" },
@@ -117,9 +117,8 @@ function initPoemGrid() {
             poemGrid.appendChild(cell);
         });
     });
-
     // Set initial center character
-    selectCharacter("心", 15, 15);
+    selectCharacter("散", 15, 15);
 }
 
 // Select a character and display its details
@@ -132,8 +131,8 @@ function selectCharacter(char, row, col) {
     
     selectedChar.textContent = char;
     pinyin.textContent = charData.pinyin;
-    position.textContent = row === 15 && col === 15 ? 'Center (心)' : `Row ${row}, Column ${col}`;
-    meaning.textContent = charData.meaning;
+            position.textContent = row === 15 && col === 15 ? 'Center (散)' : `Row ${row}, Column ${col}`;
+meaning.textContent = charData.meaning;
 }
 
 // Add character to constructed poem
@@ -165,8 +164,8 @@ function toggleCenter() {
     showCenterHeart = !showCenterHeart;
     const cells = document.querySelectorAll('[data-row="15"][data-col="15"]');
     cells.forEach(cell => {
-        cell.style.boxShadow = showCenterHeart ? '0 0 0 3px rgba(199, 60, 29, 0.5)' : 'none';
-    });
+                cell.style.boxShadow = showCenterHeart ? '0 0 0 3px rgba(199, 60, 29, 0.5)' : 'none';
+});
     toggleCenterBtn.textContent = showCenterHeart ? 'Hide Center ❤' : 'Show Center ❤';
 }