diff --git a/static/app.js b/static/app.js
index ac24c90..85fc2f5 100644
--- a/static/app.js
+++ b/static/app.js
@@ -146,28 +146,18 @@
     renderCalendar();
   };
 
-  /** 选择月份 */
-  window.selectCalMonth = function(mIdx) {
-    calMonth = mIdx;
+  /** 切换月份 */
+  window.changeCalMonth = function(dir) {
+    calMonth += dir;
+    if (calMonth > 11) { calMonth = 0; calYear++; }
+    if (calMonth < 0) { calMonth = 11; calYear--; }
     renderCalendar();
   };
 
   /** 渲染年-月-周选择器 */
   function renderCalendar() {
     document.getElementById('cal-year-label').textContent = calYear + '年';
-
-    // 月份标签
-    var monthsList = ['1月','2月','3月','4月','5月','6月','7月','8月','9月','10月','11月','12月'];
-    var today = new Date();
-    var todayMonth = today.getFullYear() === calYear ? today.getMonth() : -1;
-    var mHtml = '';
-    for (var i = 0; i < 12; i++) {
-      var mc = 'cal-month-btn';
-      if (i === calMonth) mc += ' active';
-      if (i === todayMonth) mc += ' today';
-      mHtml += '<button class="' + mc + '" onclick="selectCalMonth(' + i + ')">' + monthsList[i] + '</button>';
-    }
-    document.getElementById('cal-months').innerHTML = mHtml;
+    document.getElementById('cal-month-label').textContent = (calMonth + 1) + '月';
 
     // 计算该月包含的周
     var firstDay = new Date(calYear, calMonth, 1);
diff --git a/static/style.css b/static/style.css
index 93bb081..e46edea 100644
--- a/static/style.css
+++ b/static/style.css
@@ -208,30 +208,15 @@ body {
   color: var(--text-dim);
 }
 .cal-nav:hover { background: var(--bg); color: var(--text); }
-/* 月份按钮 */
-.cal-months {
-  display: grid;
-  grid-template-columns: repeat(4, 1fr);
-  gap: 3px;
-  padding: 0 14px 8px;
+/* 月份翻页行 */
+.cal-month-header {
+  padding: 4px 14px 8px;
 }
-.cal-month-btn {
-  padding: 4px 0;
-  border: 1px solid transparent;
-  border-radius: 6px;
-  background: var(--card);
-  font-size: 11px;
-  font-weight: 500;
-  color: var(--text-dim);
-  cursor: pointer;
-  text-align: center;
-  transition: all 0.15s;
-  font-family: inherit;
+.cal-month-header .cal-month-label {
+  font-size: 14px;
+  font-weight: 600;
+  color: var(--text);
 }
-.cal-month-btn:hover { border-color: var(--border); color: var(--text); }
-.cal-month-btn.active { background: var(--primary); color: #FFF; }
-.cal-month-btn.today { border-color: var(--primary); }
-.cal-month-btn.today:not(.active) { color: var(--primary); }
 
 /* 周选择 */
 .cal-weeks {
diff --git a/templates/index.html b/templates/index.html
index bee614c..5bd7ef6 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -114,7 +114,15 @@
                 <svg class="icon-sm"><use href="#icon-chevron-right"/></svg>
               </button>
             </div>
-            <div class="cal-months" id="cal-months"></div>
+            <div class="cal-header cal-month-header">
+              <button class="cal-nav" onclick="changeCalMonth(-1)">
+                <svg class="icon-sm"><use href="#icon-chevron-left"/></svg>
+              </button>
+              <span class="cal-month-label" id="cal-month-label">7月</span>
+              <button class="cal-nav" onclick="changeCalMonth(1)">
+                <svg class="icon-sm"><use href="#icon-chevron-right"/></svg>
+              </button>
+            </div>
             <div class="cal-weeks" id="cal-weeks"></div>
           </div>
         </div>