修改bottomdock改用js触发显示，限制只有鼠标滑过指示线才可以触发；

src/components/ui/BottomDock.vue

@@ -1,10 +1,13 @@
 <template>
-    <div class="dock-wrapper" 
+    <div class="dock-wrapper"
+         ref="dockWrapper"
          :class="[
-            autoHide ? 'is-auto-hide' : 'is-always-show', 
-            customClass
+            autoHide ? 'is-auto-hide' : 'is-always-show',
+            customClass,
+            { 'is-expanded': dockExpanded }
          ]"
-         :style="dockStyles">
+         :style="dockStyles"
+         @mouseleave="handleDockLeave">
          
         <div class="nav-arrow left-arrow" :class="{ 'is-disabled': !canScrollLeft, 'is-active': canScrollLeft }"
             @click="scrollList(-1)">
@@ -69,8 +72,9 @@ export default {
         return {
             activeIndex: -1,
             hoverIndex: null,
-            canScrollLeft: false, 
-            canScrollRight: true, 
+            dockExpanded: false,
+            canScrollLeft: false,
+            canScrollRight: true,
             dockItems: [
                 {
                     label: '首页',
@@ -154,10 +158,14 @@ export default {
         this.$nextTick(() => {
             this.checkScrollState();
             window.addEventListener('resize', this.checkScrollState);
+            if (this.autoHide) {
+                document.addEventListener('mousemove', this.handleGlobalMouseMove);
+            }
         });
     },
     beforeDestroy() {
         window.removeEventListener('resize', this.checkScrollState);
+        document.removeEventListener('mousemove', this.handleGlobalMouseMove);
     },
     methods: {
         updateActiveIndexByRoute() {
@@ -191,6 +199,24 @@ export default {
             this.canScrollLeft = container.scrollLeft > 0;
             this.canScrollRight = Math.ceil(container.scrollLeft + container.clientWidth) < container.scrollWidth;
         },
+        handleGlobalMouseMove(e) {
+            if (!this.autoHide || this.dockExpanded) return;
+            const el = this.$refs.dockWrapper;
+            if (!el) return;
+            const rect = el.getBoundingClientRect();
+            // 发光线区域：居中，宽度与 CSS clamp(150px, 20vw, 250px) 一致
+            const lineWidth = Math.min(250, Math.max(150, window.innerWidth * 0.2));
+            const centerX = window.innerWidth / 2;
+            const left = centerX - lineWidth / 2;
+            const right = centerX + lineWidth / 2;
+            // 垂直：dock 可见顶部往上延伸 30px（与 ::after 热区一致）
+            if (e.clientX >= left && e.clientX <= right && e.clientY >= rect.top - 30) {
+                this.dockExpanded = true;
+            }
+        },
+        handleDockLeave() {
+            this.dockExpanded = false;
+        },
         scrollList(direction) {
             if (direction === -1 && !this.canScrollLeft) return;
             if (direction === 1 && !this.canScrollRight) return;
@@ -229,24 +255,25 @@ export default {
 
 /* === 状态 A：自动隐藏 === */
 .dock-wrapper.is-auto-hide {
-    /* 核心改动3：下沉 100%（即自身整个高度），但往回拉出一段可见距离。
-       clamp(最小值, 动态值, 最大值)：保证小屏幕最少露出 25px，大屏最多露 40px */
-    transform: translateY(calc(100% - clamp(25px, 4vh, 40px)));
+    transform: translateY(calc(100% - clamp(15px, 4vh, 20px)));
+    pointer-events: none;
 }
-.dock-wrapper.is-auto-hide:hover {
-    /* 悬浮时，位移归零，完全升起 */
+.dock-wrapper.is-auto-hide.is-expanded {
     transform: translateY(0);
+    pointer-events: auto;
 }
 
-/* 增加隐形触发热区！防止线太细导致小屏幕极难 hover */
+/* 中间触发热区：只覆盖发光线范围，pointer-events 始终开启 */
 .dock-wrapper.is-auto-hide::after {
     content: '';
     position: absolute;
-    top: -30px; /* 向上延伸 30px 的隐形热区 */
-    left: 0;
-    width: 100%;
-    height: 60px; /* 覆盖线上下区域 */
+    top: -30px;
+    left: 50%;
+    transform: translateX(-50%);
+    width: clamp(150px, 20vw, 250px);
+    height: 60px;
     background: transparent;
+    pointer-events: auto;
 }
 
 /* 发光的指示线自适应 */
@@ -263,10 +290,10 @@ export default {
     box-shadow: 0 0 10px rgba(0, 229, 255, 0.8);
     border-radius: 4px;
     transition: opacity 0.3s;
-    pointer-events: none; 
+    pointer-events: auto;
 }
 
-.dock-wrapper.is-auto-hide:hover::before {
+.dock-wrapper.is-auto-hide.is-expanded::before {
     opacity: 0;
 }