diff --git a/src/api/category.ts b/src/api/category.ts
index 4cb4d90..15de132 100644
--- a/src/api/category.ts
+++ b/src/api/category.ts
@@ -1,4 +1,11 @@
 import { get } from './request'
+import {
+  DEFAULT_CATEGORY_ICON,
+  resolveCategoryIcon,
+  resolveCategoryIconColor,
+} from './categoryIcons'
+
+export { DEFAULT_CATEGORY_ICON, resolveCategoryIconColor }
 
 /**
  * 接口返回的 PmTag 结构（definitions polymarket.PmTag）
@@ -22,6 +29,8 @@ export interface PmTagMainItem {
   icon?: string
   sectionTitle?: string
   forceHide?: boolean
+  /** 排序值，有则按从小到大排序 */
+  sort?: number
 }
 
 /** 分类树节点（与后端返回结构一致） */
@@ -39,6 +48,8 @@ export interface CategoryTreeNode {
   updatedBy?: number
   createdAt?: string
   updatedAt?: string
+  /** 排序值，有则按从小到大排序 */
+  sort?: number
   children?: CategoryTreeNode[]
 }
 
@@ -108,58 +119,89 @@ export interface CategoryTreeResponse {
   msg: string
 }
 
-/**
- * 获取分类树（公开接口，不需要鉴权）
- * GET /PmTag/getPmTagPublic
- *
- * 返回带 children 的树形结构，最多三层
- * data 可能为数组，或 { list: [] } 等格式，统一转为 CategoryTreeNode[]
- */
-export async function getCategoryTree(): Promise<CategoryTreeResponse> {
-  const res = await get<{
-    code: number
-    data: CategoryTreeNode[] | { list?: CategoryTreeNode[] }
-    msg: string
-  }>('/PmTag/getPmTagPublic')
-  let data: CategoryTreeNode[] = []
-  const raw = res.data
-  if (Array.isArray(raw)) {
-    data = raw
-  } else if (raw && typeof raw === 'object') {
-    if (Array.isArray((raw as { list?: CategoryTreeNode[] }).list)) {
-      data = (raw as { list: CategoryTreeNode[] }).list
-    } else if ((raw as CategoryTreeNode).id && (raw as CategoryTreeNode).label) {
-      data = [raw as CategoryTreeNode]
-    }
-  }
-  return { code: res.code, data, msg: res.msg }
+/** 递归为树节点补充图标（无 icon 时自动匹配），可导出供 mock 等场景使用 */
+export function enrichWithIcons(nodes: CategoryTreeNode[]): CategoryTreeNode[] {
+  return nodes.map((n) => {
+    const icon = n.icon ?? resolveCategoryIcon(n)
+    const children = n.children?.length ? enrichWithIcons(n.children) : undefined
+    return { ...n, icon: icon ?? n.icon, children }
+  })
 }
 
-/** 将 PmTagMainItem 转为 CategoryTreeNode */
+/** 递归按 sort 字段从小到大排序（有 sort 的节点排前面，同层比较） */
+function sortBySortField<T extends { sort?: number; children?: T[] }>(nodes: T[]): T[] {
+  const hasSort = nodes.some((n) => n.sort != null && Number.isFinite(n.sort))
+  if (!hasSort) return nodes
+  return [...nodes]
+    .sort((a, b) => {
+      const sa = a.sort
+      const sb = b.sort
+      if (sa != null && sb != null) return sa - sb
+      if (sa != null) return -1
+      if (sb != null) return 1
+      return 0
+    })
+    .map((n) => {
+      if (n.children?.length) {
+        return { ...n, children: sortBySortField(n.children) }
+      }
+      return n
+    })
+}
+
+/** 将 PmTagMainItem 转为 CategoryTreeNode，无 icon 时自动匹配 MDI 图标 */
 function mapPmTagToTreeNode(item: PmTagMainItem): CategoryTreeNode {
   const rawId = item.ID
   const id = rawId != null ? String(rawId) : (item.slug ?? item.label ?? '')
   const children = Array.isArray(item.children) ? item.children.map(mapPmTagToTreeNode) : undefined
+  const icon = item.icon ?? resolveCategoryIcon({ label: item.label, slug: item.slug })
   return {
     id,
     label: item.label ?? '',
     slug: item.slug ?? '',
-    icon: item.icon,
+    icon,
     sectionTitle: item.sectionTitle,
     forceShow: item.forceShow,
     forceHide: item.forceHide,
+    sort: item.sort,
     children: children?.length ? children : undefined,
   }
 }
 
+/** getPmTagList 响应：data 可能为 { All: PmTag[] } 或 PmTag[] */
+type GetPmTagListData = PmTagMainItem[] | { All?: PmTagMainItem[] }
+
 /**
  * 获取主分类（首页顶部分类 Tab 数据）
- * GET /PmTag/getPmTagMain
+ * GET /PmTag/getPmTagList（原 getPmTagMain）
  *
- * 不需要鉴权，返回带 children 的树形结构，最多三层
+ * 数据结构：三层结构均在 data.All 下，data.All 为根节点数组
  */
 export async function getPmTagMain(): Promise<CategoryTreeResponse> {
-  const res = await get<{ code: number; data: PmTagMainItem[]; msg: string }>('/PmTag/getPmTagMain')
-  const data: CategoryTreeNode[] = Array.isArray(res.data) ? res.data.map(mapPmTagToTreeNode) : []
+  const res = await get<{ code: number; data: GetPmTagListData; msg: string }>(
+    '/PmTag/getPmTagList'
+  )
+  // 调试：打印接口原始数据
+  console.log('[getPmTagList] 原始响应:', JSON.stringify(res, null, 2))
+  let raw: PmTagMainItem[] = []
+  const d = res.data
+  if (d && typeof d === 'object' && !Array.isArray(d) && 'All' in d) {
+    raw = Array.isArray((d as { All?: PmTagMainItem[] }).All)
+      ? (d as { All: PmTagMainItem[] }).All
+      : []
+  } else if (Array.isArray(d)) {
+    raw = d
+  }
+  let mapped = raw.map(mapPmTagToTreeNode)
+  mapped = sortBySortField(mapped)
+  // 第一层不显示，取 All 菜单下的三层作为展示数据（政治、体育、加密等）
+  const allNode = mapped.find(
+    (n) =>
+      n.slug?.toLowerCase() === 'all' ||
+      n.label === 'All' ||
+      n.label === '全部'
+  )
+  const children = allNode?.children ?? mapped
+  const data: CategoryTreeNode[] = enrichWithIcons(sortBySortField(children))
   return { code: res.code, data, msg: res.msg }
 }
diff --git a/src/api/categoryIcons.ts b/src/api/categoryIcons.ts
new file mode 100644
index 0000000..257a287
--- /dev/null
+++ b/src/api/categoryIcons.ts
@@ -0,0 +1,212 @@
+/**
+ * 第二层分类图标自动匹配
+ * 基于 label/slug 从 MDI（Material Design Icons）查找合适图标
+ * 项目已引入 @mdi/font，图标名为 mdi-xxx 格式
+ */
+
+/** slug/label（小写） -> MDI 图标名 */
+const ICON_MAP: Record<string, string> = {
+  // 通用
+  all: 'mdi-view-grid-outline',
+  '全部': 'mdi-view-grid-outline',
+  latest: 'mdi-clock-outline',
+  '最新': 'mdi-new-box',
+  new: 'mdi-new-box',
+  trending: 'mdi-trending-up',
+
+  // 政治
+  politics: 'mdi-gavel',
+  '政治': 'mdi-gavel',
+  election: 'mdi-vote-outline',
+  elections: 'mdi-vote-outline',
+  '选举': 'mdi-vote-outline',
+
+  // 体育
+  sports: 'mdi-basketball',
+  '体育': 'mdi-basketball',
+  football: 'mdi-soccer',
+  '足球': 'mdi-soccer',
+  basketball: 'mdi-basketball',
+  '篮球': 'mdi-basketball',
+  nba: 'mdi-basketball',
+  macro: 'mdi-earth',
+
+  // 加密 / 金融
+  crypto: 'mdi-currency-btc',
+  '加密': 'mdi-currency-btc',
+  btc: 'mdi-currency-btc',
+  bitcoin: 'mdi-currency-btc',
+  eth: 'mdi-currency-eth',
+  ethereum: 'mdi-currency-eth',
+  finance: 'mdi-chart-line',
+  '财务': 'mdi-chart-line',
+  '金融': 'mdi-chart-line',
+  'fed rates': 'mdi-chart-line-variant',
+  fedrates: 'mdi-chart-line-variant',
+
+  // 地缘 / 世界
+  geopolitics: 'mdi-earth',
+  '地缘政治': 'mdi-earth',
+  world: 'mdi-earth',
+  '世界': 'mdi-earth',
+
+  // 加密子类：Above/Below、Up/Down、时间周期
+  'above-below': 'mdi-arrow-up-down',
+  'up-down': 'mdi-arrow-up-down',
+  '5m': 'mdi-clock-outline',
+  '15m': 'mdi-clock-outline',
+  '1h': 'mdi-refresh',
+  '4h': 'mdi-clock-outline',
+  '1d': 'mdi-calendar',
+  '5分钟': 'mdi-clock-outline',
+  '15分钟': 'mdi-clock-outline',
+  '每小时': 'mdi-refresh',
+  '4小时': 'mdi-clock-outline',
+  '每天': 'mdi-calendar',
+
+  // 文化 / 科技
+  culture: 'mdi-palette-outline',
+  '文化': 'mdi-palette-outline',
+  tech: 'mdi-laptop',
+  '科技': 'mdi-laptop',
+  ai: 'mdi-robot-outline',
+  climate: 'mdi-weather-partly-cloudy',
+  '气候': 'mdi-weather-partly-cloudy',
+  science: 'mdi-flask-outline',
+  '科学': 'mdi-flask-outline',
+
+  // Polymarket 风格（参考官网 dashboards）
+  trump: 'mdi-account',
+}
+
+/** 无匹配时的默认图标 */
+export const DEFAULT_CATEGORY_ICON = 'mdi-tag-outline'
+
+/** slug/label -> 图标颜色（Vuetify 颜色名或 CSS 颜色值） */
+const ICON_COLOR_MAP: Record<string, string> = {
+  politics: 'primary',
+  '政治': 'primary',
+  election: 'primary',
+  elections: 'primary',
+  sports: 'success',
+  '体育': 'success',
+  football: 'success',
+  '足球': 'success',
+  basketball: 'success',
+  '篮球': 'success',
+  crypto: 'warning',
+  '加密': 'warning',
+  btc: 'warning',
+  eth: 'info',
+  finance: 'info',
+  '财务': 'info',
+  '金融': 'info',
+  geopolitics: 'secondary',
+  '地缘政治': 'secondary',
+  world: 'secondary',
+  culture: 'purple',
+  '文化': 'purple',
+  tech: 'info',
+  '科技': 'info',
+  ai: 'secondary',
+  climate: 'success',
+  '气候': 'success',
+  latest: 'primary',
+  '最新': 'primary',
+  all: 'grey',
+  '全部': 'grey',
+}
+
+/** 关键词 -> 颜色 */
+const LABEL_COLOR_KEYWORDS: [string | RegExp, string][] = [
+  ['政治', 'primary'],
+  ['选举', 'primary'],
+  ['足球', 'success'],
+  ['篮球', 'success'],
+  ['体育', 'success'],
+  ['加密', 'warning'],
+  ['比特', 'warning'],
+  ['以太', 'info'],
+  ['财务', 'info'],
+  ['金融', 'info'],
+  ['地缘', 'secondary'],
+  ['世界', 'secondary'],
+  ['文化', 'purple'],
+  ['科技', 'info'],
+  ['气候', 'success'],
+]
+
+/** 关键词（label 包含） -> 图标 */
+const LABEL_KEYWORDS: [string | RegExp, string][] = [
+  ['政治', 'mdi-gavel'],
+  ['选举', 'mdi-vote-outline'],
+  ['足球', 'mdi-soccer'],
+  ['篮球', 'mdi-basketball'],
+  ['体育', 'mdi-basketball'],
+  ['加密', 'mdi-currency-btc'],
+  ['比特', 'mdi-currency-btc'],
+  ['以太', 'mdi-currency-eth'],
+  ['财务', 'mdi-chart-line'],
+  ['金融', 'mdi-chart-line'],
+  ['地缘', 'mdi-earth'],
+  ['世界', 'mdi-earth'],
+  ['全部', 'mdi-view-grid-outline'],
+  ['最新', 'mdi-new-box'],
+  ['文化', 'mdi-palette-outline'],
+  ['科技', 'mdi-laptop'],
+  ['气候', 'mdi-weather-partly-cloudy'],
+  ['科学', 'mdi-flask-outline'],
+  [/^\d+[mhd]$/i, 'mdi-clock-outline'],
+  [/分钟|小时|每天/, 'mdi-clock-outline'],
+]
+
+function normalizeKey(s: string): string {
+  return s.trim().toLowerCase().replace(/\s+/g, '-')
+}
+
+/**
+ * 根据 label 或 slug 解析 MDI 图标
+ * 优先精确匹配 slug，其次 label，最后关键词匹配；无匹配时返回默认图标
+ */
+export function resolveCategoryIcon(node: { label?: string; slug?: string; icon?: string }): string {
+  if (node.icon && node.icon.startsWith('mdi-')) return node.icon
+
+  const slug = node.slug ? normalizeKey(node.slug) : ''
+  const label = node.label?.trim() ?? ''
+
+  // 1. 精确匹配 slug
+  const bySlug = slug && ICON_MAP[slug]
+  if (bySlug) return bySlug
+
+  // 2. 精确匹配 label
+  const byLabel = label && (ICON_MAP[label] ?? ICON_MAP[normalizeKey(label)])
+  if (byLabel) return byLabel
+
+  // 3. 关键词匹配 label
+  for (const [keyword, icon] of LABEL_KEYWORDS) {
+    if (typeof keyword === 'string' && label.includes(keyword)) return icon
+    if (keyword instanceof RegExp && keyword.test(label)) return icon
+  }
+
+  return DEFAULT_CATEGORY_ICON
+}
+
+/**
+ * 根据 label 或 slug 解析图标颜色
+ * 返回 Vuetify 颜色名（primary/success/warning 等）或 CSS 颜色，无匹配时返回 undefined（继承默认色）
+ */
+export function resolveCategoryIconColor(node: { label?: string; slug?: string }): string | undefined {
+  const slug = node.slug ? normalizeKey(node.slug) : ''
+  const label = node.label?.trim() ?? ''
+
+  if (slug && ICON_COLOR_MAP[slug]) return ICON_COLOR_MAP[slug]
+  if (label && ICON_COLOR_MAP[label]) return ICON_COLOR_MAP[label]
+  if (label && ICON_COLOR_MAP[normalizeKey(label)]) return ICON_COLOR_MAP[normalizeKey(label)]
+
+  for (const [keyword, color] of LABEL_COLOR_KEYWORDS) {
+    if (typeof keyword === 'string' && label.includes(keyword)) return color
+    if (keyword instanceof RegExp && keyword.test(label)) return color
+  }
+
+  return undefined
+}
diff --git a/src/api/event.ts b/src/api/event.ts
index f948a13..6d86b13 100644
--- a/src/api/event.ts
+++ b/src/api/event.ts
@@ -121,19 +121,22 @@ export interface GetPmEventListParams {
   createdAtRange?: string[]
   /** clobTokenIds 对应的值，用于按市场 token 筛选；可从 market.clobTokenIds 获取 */
   tokenid?: string | string[]
+  /** 标签 ID，按分类筛选 */
+  tagId?: number
+  /** 标签 slug，按分类筛选 */
+  tagSlug?: string
 }
 
 /**
  * 分页获取 Event 列表（公开接口，不需要鉴权）
  * GET /PmEvent/getPmEventPublic
  *
- * Query: page, pageSize, keyword, createdAtRange, tokenid
- * tokenid 对应 market.clobTokenIds 中的值，可传单个或数组
+ * Query: page, pageSize, keyword, createdAtRange, tokenid, tagId, tagSlug
  */
 export async function getPmEventPublic(
   params: GetPmEventListParams = {},
 ): Promise<PmEventListResponse> {
-  const { page = 1, pageSize = 10, keyword, createdAtRange, tokenid } = params
+  const { page = 1, pageSize = 10, keyword, createdAtRange, tokenid, tagId, tagSlug } = params
   const query: Record<string, string | number | string[] | undefined> = {
     page,
     pageSize,
@@ -143,6 +146,8 @@ export async function getPmEventPublic(
   if (tokenid != null) {
     query.tokenid = Array.isArray(tokenid) ? tokenid : [tokenid]
   }
+  if (tagId != null && Number.isFinite(tagId)) query.tagId = tagId
+  if (tagSlug != null && tagSlug !== '') query.tagSlug = tagSlug
 
   return get<PmEventListResponse>('/PmEvent/getPmEventPublic', query)
 }
diff --git a/src/components/TradeComponent.vue b/src/components/TradeComponent.vue
index 0795286..748f077 100644
--- a/src/components/TradeComponent.vue
+++ b/src/components/TradeComponent.vue
@@ -1067,6 +1067,8 @@ async function submitSplit() {
   }
 }
 
+defineExpose({ openMergeDialog, openSplitDialog })
+
 const yesPriceCents = computed(() => (props.market ? Math.round(props.market.yesPrice * 100) : 19))
 const noPriceCents = computed(() => (props.market ? Math.round(props.market.noPrice * 100) : 82))
 
diff --git a/src/views/EventMarkets.vue b/src/views/EventMarkets.vue
index 88a60b5..b996d44 100644
--- a/src/views/EventMarkets.vue
+++ b/src/views/EventMarkets.vue
@@ -83,17 +83,19 @@
                     class="buy-yes-btn"
                     variant="flat"
                     size="small"
+                    rounded="sm"
                     @click="openTrade(market, index, 'yes')"
                   >
-                    Buy Yes {{ yesPrice(market) }}
+                    Yes {{ yesPrice(market) }}
                   </v-btn>
                   <v-btn
                     class="buy-no-btn"
                     variant="flat"
                     size="small"
+                    rounded="sm"
                     @click="openTrade(market, index, 'no')"
                   >
-                    Buy No {{ noPrice(market) }}
+                    No {{ noPrice(market) }}
                   </v-btn>
                 </div>
               </div>
@@ -113,36 +115,60 @@
         </v-col>
       </v-row>
 
-      <!-- 移动端：单 market 时显示固定底部 Buy Yes/No 栏；多 market 时仅通过列表点击弹出 -->
+      <!-- 移动端：单 market 时显示固定底部 Yes/No 栏 + 三点菜单（Merge/Split） -->
       <template v-if="isMobile && markets.length === 1">
         <div class="mobile-trade-bar-spacer" aria-hidden="true"></div>
         <div class="mobile-trade-bar">
           <v-btn
             class="mobile-bar-btn mobile-bar-yes"
             variant="flat"
-            color="success"
-            rounded="pill"
-            block
+            rounded="sm"
             @click="openSheetWithOption('yes')"
           >
-            Buy Yes {{ barMarket ? yesPrice(barMarket) : '0¢' }}
+            Yes {{ barMarket ? yesPrice(barMarket) : '0¢' }}
           </v-btn>
           <v-btn
             class="mobile-bar-btn mobile-bar-no"
             variant="flat"
-            color="error"
-            rounded="pill"
-            block
+            rounded="sm"
             @click="openSheetWithOption('no')"
           >
-            Buy No {{ barMarket ? noPrice(barMarket) : '0¢' }}
+            No {{ barMarket ? noPrice(barMarket) : '0¢' }}
           </v-btn>
+          <v-menu
+            v-model="mobileMenuOpen"
+            :close-on-content-click="true"
+            location="top"
+            transition="scale-transition"
+          >
+            <template #activator="{ props: menuProps }">
+              <v-btn
+                v-bind="menuProps"
+                class="mobile-bar-more-btn"
+                variant="flat"
+                icon
+                rounded="pill"
+                aria-label="更多操作"
+              >
+                <v-icon size="20">mdi-dots-horizontal</v-icon>
+              </v-btn>
+            </template>
+            <v-list density="compact">
+              <v-list-item @click="openMergeFromBar">
+                <v-list-item-title>Merge</v-list-item-title>
+              </v-list-item>
+              <v-list-item @click="openSplitFromBar">
+                <v-list-item-title>Split</v-list-item-title>
+              </v-list-item>
+            </v-list>
+          </v-menu>
         </div>
       </template>
       <!-- 移动端交易弹窗：单 market 与多 market 均需（多 market 时通过列表 Buy Yes/No 打开） -->
       <template v-if="isMobile && markets.length > 0">
         <v-bottom-sheet v-model="tradeSheetOpen" content-class="event-markets-trade-sheet">
           <TradeComponent
+            ref="tradeComponentRef"
             :key="`trade-${selectedMarketIndex}-${tradeInitialOption}`"
             :market="tradeMarketPayload"
             :initial-option="tradeInitialOption"
@@ -188,6 +214,10 @@ const selectedMarketIndex = ref(0)
 const tradeInitialOption = ref<'yes' | 'no' | undefined>(undefined)
 /** 移动端交易弹窗开关 */
 const tradeSheetOpen = ref(false)
+/** 移动端底部栏三点菜单开关 */
+const mobileMenuOpen = ref(false)
+/** TradeComponent 引用，用于从底部栏触发 Merge/Split */
+const tradeComponentRef = ref<InstanceType<typeof TradeComponent> | null>(null)
 const markets = computed(() => {
   const list = eventDetail.value?.markets ?? []
   return list.length > 0 ? list : []
@@ -491,12 +521,30 @@ function openTrade(market: PmEventMarketItem, index: number, side: 'yes' | 'no')
   }
 }
 
-/** 移动端底部栏：点击 Buy Yes/No 时打开交易弹窗 */
+/** 移动端底部栏：点击 Yes/No 时打开交易弹窗 */
 function openSheetWithOption(side: 'yes' | 'no') {
   tradeInitialOption.value = side
   tradeSheetOpen.value = true
 }
 
+/** 从底部栏三点菜单打开 Merge 弹窗 */
+function openMergeFromBar() {
+  mobileMenuOpen.value = false
+  tradeSheetOpen.value = true
+  nextTick(() => {
+    tradeComponentRef.value?.openMergeDialog?.()
+  })
+}
+
+/** 从底部栏三点菜单打开 Split 弹窗 */
+function openSplitFromBar() {
+  mobileMenuOpen.value = false
+  tradeSheetOpen.value = true
+  nextTick(() => {
+    tradeComponentRef.value?.openSplitDialog?.()
+  })
+}
+
 function onTradeSubmit(payload: {
   side: 'buy' | 'sell'
   option: 'yes' | 'no'
@@ -898,22 +946,39 @@ watch(
 
 .market-row-actions {
   display: flex;
-  gap: 8px;
-  flex-shrink: 0;
+  gap: 10px;
+  flex: 1 1 100%;
+  min-width: 0;
+  margin-top: 2px;
+}
+
+/* 宽屏时按钮与问题同行，节省垂直空间 */
+@media (min-width: 768px) {
+  .market-row-actions {
+    flex: 0 0 auto;
+    margin-top: 0;
+    margin-left: auto;
+  }
+}
+
+.buy-yes-btn,
+.buy-no-btn {
+  flex: 1;
+  min-width: 72px;
+  max-width: 140px;
+  white-space: nowrap;
+  text-transform: none;
+  font-weight: 500;
 }
 
 .buy-yes-btn {
   background-color: #b8e0b8 !important;
   color: #006600 !important;
-  text-transform: none;
-  font-weight: 500;
 }
 
 .buy-no-btn {
   background-color: #f0b8b8 !important;
   color: #cc0000 !important;
-  text-transform: none;
-  font-weight: 500;
 }
 
 /* 移动端底部交易栏 */
@@ -929,7 +994,7 @@ watch(
   z-index: 100;
   display: flex;
   align-items: stretch;
-  gap: 8px;
+  gap: 10px;
   width: 100%;
   padding: 12px 16px;
   padding-bottom: max(12px, env(safe-area-inset-bottom));
@@ -939,9 +1004,9 @@ watch(
 
 .mobile-bar-btn {
   border: none;
-  border-radius: 9999px;
+  border-radius: 6px;
   font-size: 15px;
-  font-weight: 600;
+  font-weight: 500;
   cursor: pointer;
   flex-shrink: 0;
   text-transform: none;
@@ -950,16 +1015,29 @@ watch(
 .mobile-bar-yes {
   flex: 1;
   min-width: 0;
-  background: #16a34a !important;
-  color: #fff !important;
+  background: #b8e0b8 !important;
+  color: #006600 !important;
   padding: 14px 16px;
 }
 
 .mobile-bar-no {
   flex: 1;
   min-width: 0;
-  background: #dc2626 !important;
-  color: #fff !important;
+  background: #f0b8b8 !important;
+  color: #cc0000 !important;
   padding: 14px 16px;
 }
+
+.mobile-bar-more-btn {
+  flex-shrink: 0;
+  width: 46px;
+  height: 46px;
+  min-width: 46px;
+  min-height: 46px;
+  padding: 0 !important;
+  border-radius: 50%;
+  background: #e5e7eb !important;
+  color: #6b7280;
+  align-self: center;
+}
 </style>
diff --git a/src/views/Home.vue b/src/views/Home.vue
index 84ffa09..3590e31 100644
--- a/src/views/Home.vue
+++ b/src/views/Home.vue
@@ -116,8 +116,13 @@
               :class="{ 'home-category-icon-item--active': layerActiveValues[1] === item.id }"
               @click="onCategorySelect(1, item.id)"
             >
-              <v-icon v-if="item.icon" size="24" class="home-category-icon">{{ item.icon }}</v-icon>
-              <span v-else class="home-category-icon-placeholder" aria-hidden="true" />
+              <v-icon
+                size="24"
+                class="home-category-icon"
+                :color="resolveCategoryIconColor(item) ?? 'grey'"
+              >
+                {{ item.icon || DEFAULT_CATEGORY_ICON }}
+              </v-icon>
               <span class="home-category-icon-label">{{ item.label }}</span>
             </button>
           </div>
@@ -307,7 +312,14 @@ import {
   clearEventListCache,
   type EventCardItem,
 } from '../api/event'
-import { getPmTagMain, MOCK_CATEGORY_TREE, type CategoryTreeNode } from '../api/category'
+import {
+  DEFAULT_CATEGORY_ICON,
+  enrichWithIcons,
+  getPmTagMain,
+  MOCK_CATEGORY_TREE,
+  resolveCategoryIconColor,
+  type CategoryTreeNode,
+} from '../api/category'
 import { useSearchHistory } from '../composables/useSearchHistory'
 
 const { mobile } = useDisplay()
@@ -371,10 +383,10 @@ function doSearch(keyword: string) {
   loadEvents(1, false, keyword)
 }
 
-/** 过滤 forceHide 的节点 */
+/** 过滤：仅当 forceShow 明确为 false 时不显示，其他（null/undefined/true 等）均显示；排除 forceHide 的节点 */
 function filterVisible(nodes: CategoryTreeNode[] | undefined): CategoryTreeNode[] {
   if (!nodes?.length) return []
-  return nodes.filter((n) => !n.forceHide)
+  return nodes.filter((n) => n.forceShow !== false && !n.forceHide)
 }
 
 /** 第三层区块标题：取当前选中的第一层节点的 sectionTitle 或 label */
@@ -385,6 +397,28 @@ const selectedLayer0SectionTitle = computed(() => {
   return node?.sectionTitle ?? node?.label ?? ''
 })
 
+/** 从树中递归查找节点 */
+function findNodeById(nodes: CategoryTreeNode[], id: string): CategoryTreeNode | undefined {
+  for (const n of nodes) {
+    if (n.id === id) return n
+    const found = n.children ? findNodeById(n.children, id) : undefined
+    if (found) return found
+  }
+  return undefined
+}
+
+/** 当前选中分类的 tag 筛选（取最后选中的层级，用于 API tagId/tagSlug） */
+const activeTagFilter = computed(() => {
+  const ids = layerActiveValues.value
+  if (ids.length === 0) return { tagId: undefined as number | undefined, tagSlug: undefined as string | undefined }
+  const lastId = ids[ids.length - 1]
+  const root = filterVisible(categoryTree.value)
+  const node = lastId ? findNodeById(root, lastId) : undefined
+  if (!node) return { tagId: undefined, tagSlug: undefined }
+  const tagId = /^\d+$/.test(node.id) ? parseInt(node.id, 10) : undefined
+  return { tagId, tagSlug: node.slug || undefined }
+})
+
 /** 当前展示的层级数据：[[layer0], [layer1]?, [layer2]?] */
 const categoryLayers = computed(() => {
   const root = filterVisible(categoryTree.value)
@@ -405,7 +439,7 @@ const categoryLayers = computed(() => {
   return layers
 })
 
-/** 分类选中时：若有 children 则展开下一层并默认选中第一个 */
+/** 分类选中时：若有 children 则展开下一层并默认选中第一个，并重新加载列表 */
 function onCategorySelect(layerIndex: number, selectedId: string) {
   const nextValues = [...layerActiveValues.value]
   nextValues[layerIndex] = selectedId
@@ -421,6 +455,10 @@ function onCategorySelect(layerIndex: number, selectedId: string) {
     nextValues.push(firstChild.id)
   }
   layerActiveValues.value = nextValues
+
+  clearEventListCache()
+  eventPage.value = 1
+  loadEvents(1, false)
 }
 
 /** 初始化分类选中：默认选中第一个，若有 children 则递归展开 */
@@ -522,8 +560,15 @@ const activeSearchKeyword = ref('')
 /** 请求事件列表并追加或覆盖到 eventList（公开接口，无需鉴权）；成功后会更新内存缓存 */
 async function loadEvents(page: number, append: boolean, keyword?: string) {
   const kw = keyword !== undefined ? keyword : activeSearchKeyword.value
+  const { tagId, tagSlug } = activeTagFilter.value
   try {
-    const res = await getPmEventPublic({ page, pageSize: PAGE_SIZE, keyword: kw || undefined })
+    const res = await getPmEventPublic({
+      page,
+      pageSize: PAGE_SIZE,
+      keyword: kw || undefined,
+      tagId,
+      tagSlug,
+    })
     if (res.code !== 0 && res.code !== 200) {
       throw new Error(res.msg || '请求失败')
     }
@@ -576,37 +621,43 @@ function checkScrollLoad() {
 }
 
 onMounted(() => {
+  /** 分类树就绪后加载列表（确保 activeTagFilter 已计算，与下拉刷新参数一致） */
+  function loadEventListAfterCategoryReady() {
+    const cached = getEventListCache()
+    if (cached && cached.list.length > 0) {
+      eventList.value = cached.list
+      eventPage.value = cached.page
+      eventTotal.value = cached.total
+      eventPageSize.value = cached.pageSize
+    } else {
+      loadEvents(1, false)
+    }
+  }
+
   /** 开发时设为 true 可始终使用模拟数据查看一二三层 UI */
   const USE_MOCK_CATEGORY = false
   if (USE_MOCK_CATEGORY) {
-    categoryTree.value = MOCK_CATEGORY_TREE
+    categoryTree.value = enrichWithIcons(MOCK_CATEGORY_TREE)
     initCategorySelection()
+    loadEventListAfterCategoryReady()
   } else {
     getPmTagMain()
       .then((res) => {
         if (res.code === 0 || res.code === 200) {
           const data = res.data
-          categoryTree.value = Array.isArray(data) && data.length > 0 ? data : MOCK_CATEGORY_TREE
+          categoryTree.value = Array.isArray(data) && data.length > 0 ? data : enrichWithIcons(MOCK_CATEGORY_TREE)
         } else {
-          categoryTree.value = MOCK_CATEGORY_TREE
+          categoryTree.value = enrichWithIcons(MOCK_CATEGORY_TREE)
         }
         initCategorySelection()
+        loadEventListAfterCategoryReady()
       })
       .catch(() => {
-        categoryTree.value = MOCK_CATEGORY_TREE
+        categoryTree.value = enrichWithIcons(MOCK_CATEGORY_TREE)
         initCategorySelection()
+        loadEventListAfterCategoryReady()
       })
   }
-
-  const cached = getEventListCache()
-  if (cached && cached.list.length > 0) {
-    eventList.value = cached.list
-    eventPage.value = cached.page
-    eventTotal.value = cached.total
-    eventPageSize.value = cached.pageSize
-  } else {
-    loadEvents(1, false)
-  }
   nextTick(() => {
     const sentinel = sentinelRef.value
     if (sentinel) {
diff --git a/src/views/TradeDetail.vue b/src/views/TradeDetail.vue
index 5e3bf2a..d3589cd 100644
--- a/src/views/TradeDetail.vue
+++ b/src/views/TradeDetail.vue
@@ -113,19 +113,78 @@
         </v-card>
       </v-col>
 
-      <!-- 右侧：交易组件（固定宽度），传入当前市场以便 Split 调用拆单接口 -->
-      <v-col cols="12" class="trade-col">
+      <!-- 右侧：交易组件（固定宽度），传入当前市场以便 Split 调用拆单接口；移动端隐藏，改用底部栏+弹窗 -->
+      <v-col v-if="!isMobile" cols="12" class="trade-col">
         <div class="trade-sidebar">
-          <TradeComponent :market="tradeMarketPayload" :initial-option="tradeInitialOption" />
+          <TradeComponent ref="tradeComponentRef" :market="tradeMarketPayload" :initial-option="tradeInitialOption" />
         </div>
       </v-col>
+
+      <!-- 移动端：固定底部 Yes/No 栏 + 三点菜单（Merge/Split） -->
+      <template v-if="isMobile && tradeMarketPayload">
+        <div class="mobile-trade-bar-spacer" aria-hidden="true"></div>
+        <div class="mobile-trade-bar">
+          <v-btn
+            class="mobile-bar-btn mobile-bar-yes"
+            variant="flat"
+            rounded="sm"
+            @click="openSheetWithOption('yes')"
+          >
+            Yes {{ yesPriceCents }}¢
+          </v-btn>
+          <v-btn
+            class="mobile-bar-btn mobile-bar-no"
+            variant="flat"
+            rounded="sm"
+            @click="openSheetWithOption('no')"
+          >
+            No {{ noPriceCents }}¢
+          </v-btn>
+          <v-menu
+            v-model="mobileMenuOpen"
+            :close-on-content-click="true"
+            location="top"
+            transition="scale-transition"
+          >
+            <template #activator="{ props: menuProps }">
+              <v-btn
+                v-bind="menuProps"
+                class="mobile-bar-more-btn"
+                variant="flat"
+                icon
+                rounded="pill"
+                aria-label="更多操作"
+              >
+                <v-icon size="20">mdi-dots-horizontal</v-icon>
+              </v-btn>
+            </template>
+            <v-list density="compact">
+              <v-list-item @click="openMergeFromBar">
+                <v-list-item-title>Merge</v-list-item-title>
+              </v-list-item>
+              <v-list-item @click="openSplitFromBar">
+                <v-list-item-title>Split</v-list-item-title>
+              </v-list-item>
+            </v-list>
+          </v-menu>
+        </div>
+        <v-bottom-sheet v-model="tradeSheetOpen" content-class="trade-detail-trade-sheet">
+          <TradeComponent
+            ref="mobileTradeComponentRef"
+            :market="tradeMarketPayload"
+            :initial-option="tradeInitialOptionFromBar"
+            embedded-in-sheet
+          />
+        </v-bottom-sheet>
+      </template>
     </v-row>
   </v-container>
 </template>
 
 <script setup lang="ts">
-import { ref, computed, onMounted, onUnmounted, watch } from 'vue'
+import { ref, computed, onMounted, onUnmounted, watch, nextTick } from 'vue'
 import { useRoute } from 'vue-router'
+import { useDisplay } from 'vuetify'
 import * as echarts from 'echarts'
 import type { ECharts } from 'echarts'
 import OrderBook from '../components/OrderBook.vue'
@@ -167,6 +226,8 @@ export type ChartIncrement = { point: ChartPoint }
 
 const route = useRoute()
 const userStore = useUserStore()
+const { mobile } = useDisplay()
+const isMobile = computed(() => mobile.value)
 
 // 详情接口 GET /PmEvent/findPmEvent 返回的数据
 const eventDetail = ref<PmEventListItem | null>(null)
@@ -294,6 +355,45 @@ const tradeInitialOption = computed(() => {
   return undefined
 })
 
+/** 移动端底部栏点击 Yes/No 时传给弹窗内 TradeComponent 的初始选项 */
+const tradeInitialOptionFromBar = ref<'yes' | 'no' | undefined>(undefined)
+/** 移动端交易弹窗开关 */
+const tradeSheetOpen = ref(false)
+/** 移动端三点菜单开关 */
+const mobileMenuOpen = ref(false)
+/** 桌面端 TradeComponent 引用（Merge/Split） */
+const tradeComponentRef = ref<InstanceType<typeof TradeComponent> | null>(null)
+/** 移动端弹窗内 TradeComponent 引用 */
+const mobileTradeComponentRef = ref<InstanceType<typeof TradeComponent> | null>(null)
+
+const yesPriceCents = computed(() =>
+  tradeMarketPayload.value ? Math.round(tradeMarketPayload.value.yesPrice * 100) : 0
+)
+const noPriceCents = computed(() =>
+  tradeMarketPayload.value ? Math.round(tradeMarketPayload.value.noPrice * 100) : 0
+)
+
+function openSheetWithOption(side: 'yes' | 'no') {
+  tradeInitialOptionFromBar.value = side
+  tradeSheetOpen.value = true
+}
+
+function openMergeFromBar() {
+  mobileMenuOpen.value = false
+  tradeSheetOpen.value = true
+  nextTick(() => {
+    mobileTradeComponentRef.value?.openMergeDialog?.()
+  })
+}
+
+function openSplitFromBar() {
+  mobileMenuOpen.value = false
+  tradeSheetOpen.value = true
+  nextTick(() => {
+    mobileTradeComponentRef.value?.openSplitDialog?.()
+  })
+}
+
 // Comments / Top Holders / Activity
 const detailTab = ref('activity')
 const activityMinAmount = ref<string>('0')
@@ -1230,4 +1330,64 @@ onUnmounted(() => {
 .activity-link:hover {
   color: #6b7280;
 }
+
+/* 移动端底部交易栏（与 EventMarkets 一致） */
+.mobile-trade-bar-spacer {
+  height: 72px;
+}
+
+.mobile-trade-bar {
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  z-index: 100;
+  display: flex;
+  align-items: stretch;
+  gap: 10px;
+  width: 100%;
+  padding: 12px 16px;
+  padding-bottom: max(12px, env(safe-area-inset-bottom));
+  background: #fff;
+  border-top: 1px solid #eee;
+}
+
+.mobile-bar-btn {
+  border: none;
+  border-radius: 6px;
+  font-size: 15px;
+  font-weight: 500;
+  cursor: pointer;
+  flex-shrink: 0;
+  text-transform: none;
+}
+
+.mobile-bar-yes {
+  flex: 1;
+  min-width: 0;
+  background: #b8e0b8 !important;
+  color: #006600 !important;
+  height: 46px;
+}
+
+.mobile-bar-no {
+  flex: 1;
+  min-width: 0;
+  background: #f0b8b8 !important;
+  color: #cc0000 !important;
+  height: 46px;
+}
+
+.mobile-bar-more-btn {
+  flex-shrink: 0;
+  width: 46px;
+  height: 46px;
+  min-width: 46px;
+  min-height: 46px;
+  padding: 0 !important;
+  border-radius: 50%;
+  background: #e5e7eb !important;
+  color: #6b7280;
+  align-self: center;
+}
 </style>