diff --git a/static/app.js b/static/app.js
index a4e96a1..b5f2cbc 100644
--- a/static/app.js
+++ b/static/app.js
@@ -237,9 +237,9 @@
     var eveningItems = [];
     var eRows = document.querySelectorAll('#evening-list .evening-row');
     for (var j=0; j<eRows.length; j++) {
-      var cols = eRows[j].querySelectorAll('.col input');
-      var mistake = cols[0] ? cols[0].value.trim() : '';
-      var improve = cols[1] ? cols[1].value.trim() : '';
+      var inputs = eRows[j].querySelectorAll('input[type="text"]');
+      var mistake = inputs[0] ? inputs[0].value.trim() : '';
+      var improve = inputs[1] ? inputs[1].value.trim() : '';
       if (mistake || improve) eveningItems.push({ mistake: mistake, improvement: improve });
     }
 
@@ -319,30 +319,15 @@
 
   function addEveningRow(mistake, improve) {
     var container = document.getElementById('evening-list');
-    var idx = container.children.length;
     mistake = mistake || '';
     improve = improve || '';
     var div = document.createElement('div');
     div.className = 'evening-row';
     div.innerHTML =
-      '<div class="evening-header">' +
-        '<span class="idx">' + (idx+1) + '.</span>' +
-        '<button class="btn-del" onclick="this.parentElement.parentElement.remove();renumberEvening()"><svg class="icon-sm"><use href="#icon-x"/></svg></button>' +
-      '</div>' +
-      '<div class="mistake-row">' +
-        '<div class="col"><label>错误</label><input type="text" value="' + esc(mistake) + '" placeholder="今天犯的错…"></div>' +
-        '<div class="col"><label>改进方案</label><input type="text" value="' + esc(improve) + '" placeholder="下次怎么做…"></div>' +
-      '</div>';
+      '<button class="btn-del" onclick="this.parentElement.remove()"><svg class="icon-sm"><use href="#icon-x"/></svg></button>' +
+      '<input type="text" value="' + esc(mistake) + '" placeholder="犯的错误…">' +
+      '<input type="text" value="' + esc(improve) + '" placeholder="改进方案…">';
     container.appendChild(div);
-    renumberEvening();
-  }
-
-  function renumberEvening() {
-    var rows = document.querySelectorAll('#evening-list .evening-row');
-    for (var i=0; i<rows.length; i++) {
-      var span = rows[i].querySelector('.idx');
-      if (span) span.textContent = (i+1) + '.';
-    }
   }
 
   /* ── 勤学预设项目 ── */
diff --git a/static/style.css b/static/style.css
index 432525a..9553c05 100644
--- a/static/style.css
+++ b/static/style.css
@@ -615,9 +615,13 @@ body {
 .btn-del:hover { background: var(--danger-light); }
 .btn-del .icon-sm { width: 16px; height: 16px; }
 
-/* 责善改过 横排双输入 */
+/* 责善改过 — 简洁分割线风格 */
 
 .evening-row {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
   padding: 0 0 12px;
   margin-bottom: 12px;
   border-bottom: 1px solid var(--border);
@@ -626,42 +630,17 @@ body {
 .evening-row:last-child {
   border-bottom: none;
   margin-bottom: 0;
+  padding-bottom: 0;
 }
 
-.evening-header {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  margin-bottom: 8px;
+.evening-row .btn-del {
+  position: absolute;
+  top: 0;
+  right: 0;
+  z-index: 1;
 }
 
-.evening-header .idx {
-  font-size: 12px;
-  color: var(--text-muted);
-  font-weight: 600;
-}
-
-.mistake-row {
-  display: flex;
-  flex-direction: column;
-  gap: 8px;
-  align-items: stretch;
-}
-
-.mistake-row .col {
-  display: flex;
-  flex-direction: column;
-  gap: 4px;
-}
-
-.mistake-row .col label {
-  font-size: 11px;
-  color: var(--text-muted);
-  font-weight: 500;
-  padding-left: 2px;
-}
-
-.mistake-row input[type="text"] {
+.evening-row input[type="text"] {
   width: 100%;
   padding: 9px 12px;
   border: 1.5px solid var(--border);
@@ -671,8 +650,10 @@ body {
   color: var(--text);
   background: var(--bg);
   transition: border-color 0.2s, background 0.2s;
+  box-sizing: border-box;
 }
-.mistake-row input[type="text"]:focus {
+
+.evening-row input[type="text"]:focus {
   outline: none;
   border-color: var(--primary);
   background: var(--card);