v1.2.4 — 责善改过简洁分割线风格

- 去掉序号标题和错误/改进方案标签文字
- 两条输入框纵向排列，项目间仅用分割线分隔
- 删除按钮绝对定位右上角，编辑模式下显示

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 ── */