diff --git a/src/components/PlaybackController.vue b/src/components/PlaybackController.vue
index 908afbd..f230f8a 100644
--- a/src/components/PlaybackController.vue
+++ b/src/components/PlaybackController.vue
@@ -22,6 +22,7 @@ const HOUR_IN_MS = 3600 * 1000;
 
 // --- Internal State ---
 const selectedHour = ref(Math.floor(props.currentTime / HOUR_IN_MS));
+const isUserInteracting = ref(false); // 标志位，防止 props 更新与用户操作冲突
 
 // --- Computed View Range ---
 const viewStartTime = computed(() => selectedHour.value * HOUR_IN_MS);
@@ -34,6 +35,11 @@ const { ticks } = useTimelineTicks(viewStartTime, viewEndTime);
 watch(
   () => props.currentTime,
   (newValue) => {
+    // 如果用户正在主动交互（如拖动、点击），则暂时不根据外部时间更新小时选择
+    if (isUserInteracting.value) {
+      return;
+    }
+
     // 仅在有效范围内才同步小时；避免负数/异常 currentTime 破坏选择器
     if (Number.isFinite(newValue) && newValue >= 0 && props.totalDuration > 0) {
       const maxHour = Math.max(Math.ceil(props.totalDuration / HOUR_IN_MS) - 1, 0);
@@ -56,7 +62,7 @@ const formatTime = (ms: number): string => {
   return `${String(hours).padStart(2, '0')}:${String(minutes).padStart(2, '0')}:${String(seconds).padStart(2, '0')}`;
 };
 
-const currentTimeFormatted = computed(() => formatTime(props.currentTime));
+const currentTimeFormatted = computed(() => formatTime(pendingSeekTime.value ?? props.currentTime));
 const totalDurationFormatted = computed(() => formatTime(props.totalDuration));
 
 // 本地“乐观显示”的时间：在 seek 后先行展示，待实际时间变更后清空
@@ -70,14 +76,6 @@ watch(
   },
 );
 
-const sliderValue = computed({
-  get: () => pendingSeekTime.value ?? props.currentTime,
-  set: (val: number) => {
-    pendingSeekTime.value = val;
-    emit('seek', val);
-  },
-});
-
 const playheadPosition = computed(() => {
   const viewDuration = viewEndTime.value - viewStartTime.value;
   if (viewDuration <= 0) return '0%';
@@ -101,6 +99,26 @@ const hourOptions = computed(() => {
 
 // --- Event Handlers ---
 const timelineContainerRef = ref<HTMLElement | null>(null);
+let interactionTimer: number | undefined;
+
+// 设置一个短暂的用户交互锁，以避免外部时间更新覆盖用户的即时选择
+const setUserInteraction = () => {
+  isUserInteracting.value = true;
+  clearTimeout(interactionTimer);
+  interactionTimer = window.setTimeout(() => {
+    isUserInteracting.value = false;
+  }, 2000); // 2秒内，用户的操作优先
+};
+
+const handleHourChange = (newHour: number) => {
+  setUserInteraction();
+  selectedHour.value = newHour;
+  const newTime = newHour * HOUR_IN_MS;
+  // 确保搜寻时间不超过总时长
+  const clampedTime = Math.min(newTime, props.totalDuration);
+  pendingSeekTime.value = clampedTime;
+  emit('seek', clampedTime);
+};
 
 const handlePlayPause = () => {
   if (props.isPlaying) {
@@ -112,6 +130,7 @@ const handlePlayPause = () => {
 
 // 根据点击时间轴位置计算对应时间并触发 seek
 const handleTimelineClick = (event: MouseEvent) => {
+  setUserInteraction();
   const container = timelineContainerRef.value;
   if (!container) return;
 
@@ -155,7 +174,7 @@ const handleTimelineClick = (event: MouseEvent) => {
 
       <!-- Hour Selector -->
       <a-col>
-        <a-select v-model:value="selectedHour" style="width: 150px" :options="hourOptions" />
+        <a-select :value="selectedHour" style="width: 150px" :options="hourOptions" @change="handleHourChange" />
       </a-col>
 
       <!-- Timeline Slider -->
@@ -173,13 +192,6 @@ const handleTimelineClick = (event: MouseEvent) => {
               <span v-if="tick.label" class="tick-label">{{ tick.label }}</span>
             </span>
           </div>
-          <a-slider
-            v-model:value="sliderValue"
-            :min="viewStartTime"
-            :max="viewEndTime"
-            :tip-formatter="formatTime as any"
-            :tooltip-open="false"
-          />
         </div>
       </a-col>
     </a-row>
@@ -215,6 +227,20 @@ const handleTimelineClick = (event: MouseEvent) => {
   position: relative;
   padding-top: 20px; // Space for tick labels
   margin-bottom: 5px;
+  height: 32px;
+  cursor: pointer;
+
+  &::after {
+    content: '';
+    position: absolute;
+    bottom: 8px;
+    left: 8px;
+    right: 8px;
+    height: 2px;
+    background-color: #f0f0f0;
+    border-radius: 1px;
+    pointer-events: none;
+  }
 }
 
 .playhead-marker {
@@ -270,5 +296,8 @@ body[data-theme='dark'] {
   .tick-label {
     color: #aaa;
   }
+  .timeline-container::after {
+    background-color: #434343;
+  }
 }
 </style>
diff --git a/src/hooks/useTimelineTicks.ts b/src/hooks/useTimelineTicks.ts
index cffb849..f8c6d39 100644
--- a/src/hooks/useTimelineTicks.ts
+++ b/src/hooks/useTimelineTicks.ts
@@ -42,8 +42,8 @@ export function useTimelineTicks(viewStartTime: Ref<number>, viewEndTime: Ref<nu
 
       result.push({
         position: `${(relativeTime / viewDuration) * 100}%`,
-        // 使用相对视窗的时间展示，避免绝对时间导致的大数/负数
-        label: isMajor ? formatLabelTime(relativeTime) : null,
+        // 使用绝对时间来展示刻度标签，确保其在切换小时后能正确反映当前时间
+        label: isMajor ? formatLabelTime(time) : null,
         isMajor,
       });
     }