diff --git a/static/app.js b/static/app.js
index 0112b59..2cf2db5 100644
--- a/static/app.js
+++ b/static/app.js
@@ -177,20 +177,34 @@
     }
 
     var todayWk = fmtWeek(new Date());
+    var today = new Date();
     var wHtml = '';
     for (var i2 = 0; i2 < weeks.length; i2++) {
       var w = weeks[i2];
-      var cls = 'cal-week-cell';
+      var cls = 'cal-week-row';
       var status = calendarStatus[w];
-      if (status) cls += ' ' + status;
       if (w === todayWk) cls += ' today';
       if (w === selectedWeek) cls += ' selected';
-      wHtml += '<div class="' + cls + '" data-week="' + w + '" title="' + w + '">' +
-        '第' + w.split('-W')[1].replace(/^0/, '') + '周</div>';
+      // 计算日期范围
+      var monday = new Date(calYear, calMonth, 1);
+      while (fmtWeek(monday) !== w) monday.setDate(monday.getDate() + 7);
+      var sunday = new Date(monday);
+      sunday.setDate(sunday.getDate() + 6);
+      var dateRange = (monday.getMonth()+1) + '.' + monday.getDate() + ' - ' + sunday.getDate();
+      var statusIcon = status === 'pass' ? '✓' : (status === 'fail' ? '✗' : '○');
+      var statusLabel = status === 'pass' ? '达标' : (status === 'fail' ? '未达标' : '未打卡');
+      wHtml += '<div class="' + cls + '" data-week="' + w + '">' +
+        '<span class="cal-wk-status ' + (status || 'empty') + '">' + statusIcon + '</span>' +
+        '<div class="cal-wk-info">' +
+          '<span class="cal-wk-label">第' + w.split('-W')[1].replace(/^0/, '') + '周</span>' +
+          '<span class="cal-wk-date">' + dateRange + '</span>' +
+        '</div>' +
+        '<span class="cal-wk-badge">' + statusLabel + '</span>' +
+      '</div>';
     }
     var we = document.getElementById('cal-weeks');
     we.innerHTML = wHtml;
-    we.querySelectorAll('.cal-week-cell').forEach(function(cell) {
+    we.querySelectorAll('.cal-week-row').forEach(function(row) {
       cell.addEventListener('click', function() {
         var wk = this.dataset.week;
         if (wk) navigateToWeek(wk);
diff --git a/static/style.css b/static/style.css
index a23f869..412cebf 100644
--- a/static/style.css
+++ b/static/style.css
@@ -292,36 +292,60 @@ body {
   color: var(--text);
 }
 
-/* 周选择 */
-.cal-weeks {
-  display: grid;
-  grid-template-columns: repeat(2, 1fr);
-  gap: 8px;
+/* 周列表行 */
+.cal-week-rows {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
   padding: 8px 14px 10px;
 }
-.cal-week-cell {
-  height: 42px;
+.cal-week-row {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 8px 10px;
+  border: 0.5px solid var(--border);
+  border-radius: 8px;
+  background: var(--card);
+  cursor: pointer;
+  transition: all 0.15s;
+}
+.cal-week-row:hover { border-color: var(--primary); }
+.cal-week-row.today { border-color: var(--primary); }
+.cal-week-row.selected { background: var(--primary); color: #FFF; border-color: transparent; }
+.cal-week-row.selected .cal-wk-label,
+.cal-week-row.selected .cal-wk-date,
+.cal-week-row.selected .cal-wk-badge { color: #FFF; }
+.cal-week-row.selected .cal-wk-status { background: rgba(255,255,255,0.2); color: #FFF; }
+
+.cal-wk-status {
+  width: 28px;
+  height: 28px;
+  border-radius: 50%;
   display: flex;
   align-items: center;
   justify-content: center;
-  font-size: 13px;
+  font-size: 12px;
   font-weight: 600;
-  border-radius: 8px;
-  color: var(--text-dim);
-  cursor: pointer;
-  transition: all 0.15s;
-  border: 1.5px solid var(--border);
-  background: var(--card);
+  flex-shrink: 0;
 }
-.cal-week-cell:hover { border-color: var(--primary); color: var(--primary); }
-.cal-week-cell.pass { background: var(--success-light); border-color: var(--success); color: var(--success); }
-.cal-week-cell.fail { background: var(--danger-light); border-color: var(--danger); color: var(--danger); }
-.cal-week-cell.today { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-light); }
-.cal-week-cell.selected { background: var(--primary); color: #FFF; border-color: var(--primary); }
+.cal-wk-status.pass { background: var(--success-light); color: var(--success); }
+.cal-wk-status.fail { background: var(--danger-light); color: var(--danger); }
+.cal-wk-status.empty { background: var(--bg); color: var(--text-muted); }
 
-/* 旧样式清理 */
-.cal-week-list { display: none; }
-.cal-week-cell .wk-num, .cal-week-cell .wk-dot { display: none; }
+.cal-wk-info {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  gap: 1px;
+}
+.cal-wk-label { font-size: 12px; font-weight: 600; color: var(--text); }
+.cal-wk-date { font-size: 10px; color: var(--text-muted); }
+.cal-wk-badge { font-size: 10px; color: var(--text-muted); }
+
+/* 旧样式隐藏 */
+.cal-weeks { display: none; }
+.cal-week-cell { display: none; }
 
 .cal-header {
   display: flex;
diff --git a/templates/index.html b/templates/index.html
index 0ab021e..dd050f3 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -125,7 +125,7 @@
                 <svg class="icon-sm"><use href="#icon-chevron-right"/></svg>
               </button>
             </div>
-            <div class="cal-weeks" id="cal-weeks"></div>
+            <div class="cal-week-rows" id="cal-weeks"></div>
           </div>
         </div>
         <!-- 右侧：Tab + 内容 -->