diff --git a/src/App.vue b/src/App.vue
index d7b6343..277cf5d 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -3,6 +3,7 @@ import { useCalendar } from './composables/useCalendar.js'
 import DropZone from './components/DropZone.vue'
 import HeaderBar from './components/HeaderBar.vue'
 import EventList from './components/EventList.vue'
+import EventDetail from './components/EventDetail.vue'
 
 const { isLoaded } = useCalendar()
 </script>
@@ -18,7 +19,7 @@ const { isLoaded } = useCalendar()
       <template v-else>
         <EventList />
         <div class="detail-area">
-          <div class="empty">从左侧选择一个日程进行编辑</div>
+          <EventDetail />
         </div>
       </template>
     </main>
diff --git a/src/components/EventDetail.vue b/src/components/EventDetail.vue
new file mode 100644
index 0000000..1cca6a2
--- /dev/null
+++ b/src/components/EventDetail.vue
@@ -0,0 +1,253 @@
+<script setup>
+import { ref, watch } from 'vue'
+import { useCalendar } from '../composables/useCalendar.js'
+import { DOW_EN } from '../lib/weekday.js'
+import OccurrenceGrid from './OccurrenceGrid.vue'
+
+const { selectedEvent, updateEvent, deleteEvent, splitEvent, toggleOccurrence } = useCalendar()
+
+// Local form state, synced when selection changes
+const form = ref({})
+const showSplit = ref(false)
+const splitDate = ref('')
+
+function syncForm(ev) {
+  if (!ev) { form.value = {}; return }
+  form.value = {
+    summary: ev.summary || '',
+    location: ev.location || '',
+    description: ev.description || '',
+    dtstart_time: ev.dtstartTime || '',
+    dtend_time: ev.dtendTime || '',
+    is_recurring: ev.rrule !== null,
+    freq: ev.rrule?.freq || 'WEEKLY',
+    interval: ev.rrule?.interval || 1,
+    byday: ev.rrule?.byday || 'MO',
+    until_date: ev.rrule?.untilDate || '',
+  }
+}
+
+watch(selectedEvent, syncForm, { immediate: true })
+
+function applyChanges() {
+  const ev = selectedEvent.value
+  if (!ev) return
+  const patch = {
+    summary: form.value.summary,
+    location: form.value.location,
+    description: form.value.description,
+    dtstartTime: form.value.dtstart_time,
+    dtendTime: form.value.dtend_time,
+  }
+  if (form.value.is_recurring) {
+    patch.rrule = {
+      freq: form.value.freq,
+      interval: Number(form.value.interval) || 1,
+      byday: form.value.freq === 'WEEKLY' ? form.value.byday : null,
+      untilDate: form.value.until_date || ev.rrule?.untilDate || '',
+    }
+  } else {
+    patch.rrule = null
+    patch.exdates = []
+  }
+  updateEvent(ev.uid, patch)
+}
+
+function onDelete() {
+  const ev = selectedEvent.value
+  if (!ev) return
+  if (confirm(`确定删除"${ev.summary}"？`)) {
+    deleteEvent(ev.uid)
+  }
+}
+
+function onSplit() {
+  const ev = selectedEvent.value
+  if (!ev || !ev.rrule) return
+  if (!splitDate.value) {
+    alert('请选择拆分日期')
+    return
+  }
+  if (splitDate.value <= ev.dtstartDate || splitDate.value > ev.rrule.untilDate) {
+    alert('拆分日期必须在开始日期和结束日期之间')
+    return
+  }
+  splitEvent(ev.uid, splitDate.value)
+  showSplit.value = false
+  splitDate.value = ''
+}
+
+function onToggleOcc(date) {
+  const ev = selectedEvent.value
+  if (!ev) return
+  toggleOccurrence(ev.uid, date)
+}
+</script>
+
+<template>
+  <div v-if="!selectedEvent" class="empty">从左侧选择一个日程进行编辑</div>
+  <div v-else class="detail">
+    <!-- Basic info -->
+    <div class="section-title">基本信息</div>
+    <div class="form-group">
+      <label>标题 (SUMMARY)</label>
+      <input type="text" v-model="form.summary" />
+    </div>
+    <div class="form-row">
+      <div class="form-group">
+        <label>开始时间</label>
+        <input type="time" v-model="form.dtstart_time" />
+      </div>
+      <div class="form-group">
+        <label>结束时间</label>
+        <input type="time" v-model="form.dtend_time" />
+      </div>
+    </div>
+    <div class="form-group">
+      <label>地点 (LOCATION)</label>
+      <input type="text" v-model="form.location" />
+    </div>
+    <div class="form-group">
+      <label>描述 (DESCRIPTION)</label>
+      <textarea v-model="form.description"></textarea>
+    </div>
+
+    <!-- RRULE -->
+    <div class="section-title">重复规则 (RRULE)</div>
+    <div class="form-group">
+      <label>
+        <input type="checkbox" v-model="form.is_recurring" /> 启用重复
+      </label>
+    </div>
+    <div v-if="form.is_recurring">
+      <div class="form-row">
+        <div class="form-group">
+          <label>频率</label>
+          <select v-model="form.freq">
+            <option value="WEEKLY">每周 (WEEKLY)</option>
+            <option value="DAILY">每天 (DAILY)</option>
+          </select>
+        </div>
+        <div class="form-group">
+          <label>间隔 (INTERVAL)</label>
+          <input type="number" v-model.number="form.interval" min="1" style="width: 80px" />
+        </div>
+      </div>
+      <div class="form-row">
+        <div class="form-group">
+          <label>重复到 (UNTIL)</label>
+          <input type="date" v-model="form.until_date" />
+        </div>
+        <div class="form-group" v-if="form.freq === 'WEEKLY'">
+          <label>星期 (BYDAY)</label>
+          <select v-model="form.byday">
+            <option v-for="(d, i) in DOW_EN" :key="d" :value="d">
+              {{ ['周日','周一','周二','周三','周四','周五','周六'][i] }}
+            </option>
+          </select>
+        </div>
+      </div>
+    </div>
+
+    <!-- Occurrence grid -->
+    <div v-if="form.is_recurring" class="section-title">occurrence / 排除日期</div>
+    <OccurrenceGrid
+      v-if="form.is_recurring && selectedEvent.rrule"
+      :event="selectedEvent"
+      @toggle="onToggleOcc"
+    />
+
+    <!-- Toolbar -->
+    <div class="toolbar">
+      <button class="btn btn-primary" @click="applyChanges">应用更改</button>
+      <button
+        v-if="selectedEvent.rrule"
+        class="btn btn-secondary"
+        @click="showSplit = !showSplit"
+      >
+        ✂ 拆分此日程
+      </button>
+      <button class="btn btn-danger" @click="onDelete">删除此日程</button>
+    </div>
+
+    <!-- Split panel -->
+    <div v-if="showSplit && selectedEvent.rrule" class="split-panel">
+      <p>从指定日期起，把此重复事件拆成前后两段。</p>
+      <input type="date" v-model="splitDate" />
+      <button class="btn btn-primary" @click="onSplit">确认拆分</button>
+      <button class="btn btn-secondary" @click="showSplit = false">取消</button>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.detail { padding: 24px 32px; }
+.empty {
+  text-align: center;
+  padding: 60px 20px;
+  color: #95a5a6;
+}
+.section-title {
+  font-size: 15px;
+  font-weight: 700;
+  color: #2c3e50;
+  margin: 20px 0 12px;
+  padding-bottom: 8px;
+  border-bottom: 2px solid #ecf0f1;
+}
+.form-group { margin-bottom: 16px; }
+.form-group label {
+  display: block;
+  font-size: 13px;
+  font-weight: 600;
+  color: #34495e;
+  margin-bottom: 5px;
+}
+.form-group input,
+.form-group textarea,
+.form-group select {
+  width: 100%;
+  padding: 8px 12px;
+  border: 1px solid #d5dbdb;
+  border-radius: 6px;
+  font-size: 13px;
+  font-family: inherit;
+}
+.form-group textarea { resize: vertical; min-height: 60px; }
+.form-row { display: flex; gap: 16px; }
+.form-row .form-group { flex: 1; }
+.toolbar {
+  display: flex;
+  gap: 8px;
+  margin-top: 20px;
+  padding-top: 16px;
+  border-top: 1px solid #ecf0f1;
+}
+.btn {
+  padding: 7px 16px;
+  border: none;
+  border-radius: 6px;
+  cursor: pointer;
+  font-size: 13px;
+  font-weight: 500;
+  transition: background 0.15s;
+}
+.btn-primary { background: #3498db; color: #fff; }
+.btn-primary:hover { background: #2980b9; }
+.btn-secondary { background: #ecf0f1; color: #2c3e50; }
+.btn-secondary:hover { background: #d5dbdb; }
+.btn-danger { background: #e74c3c; color: #fff; }
+.btn-danger:hover { background: #c0392b; }
+.split-panel {
+  margin-top: 16px;
+  padding: 16px;
+  background: #f8f9fa;
+  border-radius: 8px;
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  flex-wrap: wrap;
+}
+.split-panel p { width: 100%; font-size: 13px; color: #7f8c8d; margin-bottom: 8px; }
+.split-panel input { padding: 6px 10px; border: 1px solid #d5dbdb; border-radius: 6px; }
+</style>