新增：点击卡片的YES/NO弹出交易框

src/components/MarketCard.vue

@@ -31,12 +31,24 @@
         </div>
       </div>
 
-      <!-- Options Section -->
+      <!-- Options Section：点击 Yes/No 弹出交易框，阻止冒泡不触发卡片跳转 -->
       <div class="options-section">
-        <v-btn class="option-yes" :color="'#e6f9e6'" :rounded="'sm'" :text="true">
+        <v-btn
+          class="option-yes"
+          :color="'#e6f9e6'"
+          :rounded="'sm'"
+          :text="true"
+          @click.stop="openTrade('yes')"
+        >
           <span class="option-text-yes">Yes</span>
         </v-btn>
-        <v-btn class="option-no" :color="'#ffe6e6'" :rounded="'sm'" :text="true">
+        <v-btn
+          class="option-no"
+          :color="'#ffe6e6'"
+          :rounded="'sm'"
+          :text="true"
+          @click.stop="openTrade('no')"
+        >
           <span class="option-text-no">No</span>
         </v-btn>
       </div>
@@ -58,6 +70,9 @@ import { computed } from 'vue'
 import { useRouter } from 'vue-router'
 
 const router = useRouter()
+const emit = defineEmits<{
+  openTrade: [side: 'yes' | 'no', market?: { id: string; title: string }]
+}>()
 
 const props = defineProps({
   marketTitle: {
@@ -114,6 +129,11 @@ const navigateToDetail = () => {
     },
   })
 }
+
+// 点击 Yes/No 时弹出交易框（由父组件监听 openTrade 并打开弹层）
+function openTrade(side: 'yes' | 'no') {
+  emit('openTrade', side, { id: props.id, title: props.marketTitle })
+}
 </script>
 
 <style scoped>

src/components/TradeComponent.vue

@@ -274,7 +274,132 @@
     </template>
   </v-card>
 
-  <!-- 移动端：底部紧凑栏 + 底部弹出层 + 三点菜单 -->
+  <!-- 移动端且由首页卡片嵌入：只渲染交易表单，无底部栏、无内部 sheet -->
+  <template v-else-if="embeddedInSheet">
+    <v-sheet class="trade-sheet-paper trade-sheet-paper--embedded" rounded="lg">
+      <div class="trade-component trade-sheet-inner">
+        <div class="header">
+          <v-tabs v-model="activeTab" class="buy-sell-tabs minimal-tabs" density="compact">
+            <v-tab value="buy" class="minimal-tab">Buy</v-tab>
+            <v-tab value="sell" class="minimal-tab">Sell</v-tab>
+          </v-tabs>
+          <v-menu class="limit-dropdown hide-in-mobile-sheet">
+            <template v-slot:activator="{ props: limitProps, isActive }">
+              <v-btn v-bind="limitProps" class="limit-btn" text end>
+                {{ limitType }}
+                <v-icon right>{{ isActive ? 'mdi-chevron-up' : 'mdi-chevron-down' }}</v-icon>
+              </v-btn>
+            </template>
+            <v-list>
+              <v-list-item @click="limitType = 'Market'"><v-list-item-title>Market</v-list-item-title></v-list-item>
+              <v-list-item @click="limitType = 'Limit'"><v-list-item-title>Limit</v-list-item-title></v-list-item>
+              <v-divider></v-divider>
+              <v-list-item><v-list-item-title>Merge</v-list-item-title></v-list-item>
+              <v-list-item><v-list-item-title>Split</v-list-item-title></v-list-item>
+            </v-list>
+          </v-menu>
+        </div>
+        <template v-if="isMarketMode">
+          <template v-if="balance > 0">
+            <div class="price-options hide-in-mobile-sheet">
+              <v-btn class="yes-btn" :class="{ active: selectedOption === 'yes' }" text @click="handleOptionChange('yes')">Yes {{ selectedOption === 'yes' ? '19¢' : '18¢' }}</v-btn>
+              <v-btn class="no-btn" :class="{ active: selectedOption === 'no' }" text @click="handleOptionChange('no')">No {{ selectedOption === 'no' ? '82¢' : '81¢' }}</v-btn>
+            </div>
+            <div class="total-section">
+              <template v-if="activeTab === 'buy'">
+                <div class="total-row"><span class="label">Total</span><span class="total-value">${{ totalPrice }}</span></div>
+                <div class="total-row"><span class="label">To win</span><span class="to-win-value"><v-icon size="16" color="green">mdi-currency-usd</v-icon> $20</span></div>
+              </template>
+              <template v-else>
+                <div class="total-row"><span class="label">You'll receive</span><span class="to-win-value"><v-icon size="16" color="green">mdi-currency-usd</v-icon> ${{ totalPrice }}</span></div>
+              </template>
+            </div>
+            <v-btn class="action-btn" @click="submitOrder">{{ actionButtonText }}</v-btn>
+          </template>
+          <template v-else>
+            <div class="price-options hide-in-mobile-sheet">
+              <v-btn class="yes-btn" :class="{ active: selectedOption === 'yes' }" text @click="handleOptionChange('yes')">Yes {{ selectedOption === 'yes' ? '19¢' : '18¢' }}</v-btn>
+              <v-btn class="no-btn" :class="{ active: selectedOption === 'no' }" text @click="handleOptionChange('no')">No {{ selectedOption === 'no' ? '82¢' : '81¢' }}</v-btn>
+            </div>
+            <div class="input-group">
+              <div class="amount-header">
+                <div><span class="label amount-label">Amount</span><span class="balance-label">Balance ${{ balance.toFixed(2) }}</span></div>
+                <div class="amount-value">${{ amount.toFixed(2) }}</div>
+              </div>
+              <div class="amount-buttons">
+                <v-btn class="amount-btn" @click="adjustAmount(1)">+$1</v-btn>
+                <v-btn class="amount-btn" @click="adjustAmount(20)">+$20</v-btn>
+                <v-btn class="amount-btn" @click="adjustAmount(100)">+$100</v-btn>
+                <v-btn class="amount-btn" @click="setMaxAmount">Max</v-btn>
+              </div>
+            </div>
+            <v-btn class="deposit-btn" @click="deposit">Deposit</v-btn>
+          </template>
+        </template>
+        <template v-else>
+          <div class="price-options hide-in-mobile-sheet">
+            <v-btn class="yes-btn" :class="{ active: selectedOption === 'yes' }" text @click="handleOptionChange('yes')">Yes {{ selectedOption === 'yes' ? '19¢' : '18¢' }}</v-btn>
+            <v-btn class="no-btn" :class="{ active: selectedOption === 'no' }" text @click="handleOptionChange('no')">No {{ selectedOption === 'no' ? '82¢' : '81¢' }}</v-btn>
+          </div>
+          <div class="input-group limit-price-group">
+            <div class="limit-price-header">
+              <span class="label">Limit Price</span>
+              <div class="price-input">
+                <v-btn class="adjust-btn" icon @click="decreasePrice"><v-icon>mdi-minus</v-icon></v-btn>
+                <v-text-field v-model.number="limitPrice" type="number" min="0.01" step="0.01" class="price-input-field" hide-details density="compact"></v-text-field>
+                <v-btn class="adjust-btn" icon @click="increasePrice"><v-icon>mdi-plus</v-icon></v-btn>
+              </div>
+            </div>
+          </div>
+          <div class="input-group shares-group">
+            <div class="shares-header">
+              <span class="label">Shares</span>
+              <div class="shares-input">
+                <v-text-field v-model.number="shares" type="number" min="0" class="shares-input-field" hide-details density="compact"></v-text-field>
+              </div>
+            </div>
+            <div v-if="activeTab === 'buy'" class="shares-buttons">
+              <v-btn class="share-btn" @click="adjustShares(-100)">-100</v-btn>
+              <v-btn class="share-btn" @click="adjustShares(-10)">-10</v-btn>
+              <v-btn class="share-btn" @click="adjustShares(10)">+10</v-btn>
+              <v-btn class="share-btn" @click="adjustShares(100)">+100</v-btn>
+            </div>
+            <div v-else class="shares-buttons">
+              <v-btn class="share-btn" @click="setSharesPercentage(25)">25%</v-btn>
+              <v-btn class="share-btn" @click="setSharesPercentage(50)">50%</v-btn>
+              <v-btn class="share-btn" @click="setSharesPercentage(100)">Max</v-btn>
+            </div>
+          </div>
+          <div class="input-group expiration-group">
+            <div class="expiration-header">
+              <span class="label">Set expiration</span>
+              <v-switch v-model="expirationEnabled" class="expiration-switch" hide-details color="primary"></v-switch>
+            </div>
+            <v-select
+              v-if="expirationEnabled"
+              v-model="expirationTime"
+              :items="expirationOptions"
+              class="expiration-select"
+              hide-details
+              density="compact"
+            ></v-select>
+          </div>
+          <div class="total-section">
+            <template v-if="activeTab === 'buy'">
+              <div class="total-row"><span class="label">Total</span><span class="total-value">${{ totalPrice }}</span></div>
+              <div class="total-row"><span class="label">To win</span><span class="to-win-value"><v-icon size="16" color="green">mdi-currency-usd</v-icon> $20</span></div>
+            </template>
+            <template v-else>
+              <div class="total-row"><span class="label">You'll receive</span><span class="to-win-value"><v-icon size="16" color="green">mdi-currency-usd</v-icon> ${{ totalPrice }}</span></div>
+            </template>
+          </div>
+          <v-btn class="action-btn" @click="submitOrder">{{ actionButtonText }}</v-btn>
+        </template>
+      </div>
+    </v-sheet>
+  </template>
+
+  <!-- 移动端：底部紧凑栏 + 底部弹出层 -->
   <template v-else>
     <div class="mobile-trade-bar-spacer" aria-hidden="true"></div>
     <div class="mobile-trade-bar">
@@ -427,11 +552,16 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed } from 'vue'
+import { ref, computed, watch, onMounted } from 'vue'
 import { useDisplay } from 'vuetify'
 
 const { mobile } = useDisplay()
 
+const props = withDefaults(
+  defineProps<{ initialOption?: 'yes' | 'no'; embeddedInSheet?: boolean }>(),
+  { initialOption: undefined, embeddedInSheet: false }
+)
+
 // 移动端：底部栏与弹出层
 const sheetOpen = ref(false)
 
@@ -447,7 +577,7 @@ function openSheet(option: 'yes' | 'no') {
 const activeTab = ref('buy')
 const limitType = ref('Limit')
 const expirationEnabled = ref(false)
-const selectedOption = ref('no') // 'yes' or 'no'
+const selectedOption = ref<'yes' | 'no'>(props.initialOption ?? 'no')
 const limitPrice = ref(0.82) // 初始限价，单位：美元
 const shares = ref(20) // 初始份额
 const expirationTime = ref('5m') // 初始过期时间
@@ -484,6 +614,22 @@ const actionButtonText = computed(() => {
   return `${activeTab.value} ${selectedOption.value.charAt(0).toUpperCase() + selectedOption.value.slice(1)}`
 })
 
+function applyInitialOption(option: 'yes' | 'no') {
+  selectedOption.value = option
+  if (option === 'yes') {
+    limitPrice.value = 0.19
+  } else {
+    limitPrice.value = 0.82
+  }
+}
+
+onMounted(() => {
+  if (props.initialOption) applyInitialOption(props.initialOption)
+})
+watch(() => props.initialOption, (option) => {
+  if (option) applyInitialOption(option)
+}, { immediate: true })
+
 // Methods
 const handleOptionChange = (option: 'yes' | 'no') => {
   selectedOption.value = option

src/views/Home.vue

@@ -13,7 +13,12 @@
         <v-pull-to-refresh class="pull-to-refresh" @load="onRefresh">
           <div class="pull-to-refresh-inner">
             <div class="home-list">
-              <MarketCard v-for="id in listLength" :key="id" :id="String(id)" />
+              <MarketCard
+                v-for="id in listLength"
+                :key="id"
+                :id="String(id)"
+                @open-trade="onCardOpenTrade"
+              />
             </div>
             <div class="load-more-footer">
               <div ref="sentinelRef" class="load-more-sentinel" aria-hidden="true" />
@@ -36,6 +41,33 @@
           </div>
         </v-pull-to-refresh>
     </div>
+
+    <!-- PC：对话框；手机：底部 sheet，直接显示交易表单 -->
+    <v-dialog
+      v-if="!isMobile"
+      v-model="tradeDialogOpen"
+      max-width="420"
+      scrollable
+      content-class="trade-dialog trade-dialog--bare"
+      transition="dialog-transition"
+      @click:outside="tradeDialogOpen = false"
+    >
+      <TradeComponent
+        :key="`trade-${tradeDialogMarket?.id}-${tradeDialogSide}`"
+        :initial-option="tradeDialogSide"
+      />
+    </v-dialog>
+    <v-bottom-sheet
+      v-else
+      v-model="tradeDialogOpen"
+      content-class="trade-bottom-sheet"
+    >
+      <TradeComponent
+        :key="`trade-${tradeDialogMarket?.id}-${tradeDialogSide}`"
+        :initial-option="tradeDialogSide"
+        embedded-in-sheet
+      />
+    </v-bottom-sheet>
   </v-container>
 
     <footer class="home-footer">
@@ -114,8 +146,13 @@
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, onUnmounted, nextTick } from 'vue'
+import { ref, onMounted, onUnmounted, nextTick, computed } from 'vue'
+import { useDisplay } from 'vuetify'
 import MarketCard from '../components/MarketCard.vue'
+import TradeComponent from '../components/TradeComponent.vue'
+
+const { mobile } = useDisplay()
+const isMobile = computed(() => mobile.value)
 
 const activeTab = ref('overview')
 
@@ -126,7 +163,16 @@ const maxItems = 50
 const listLength = ref(INITIAL_COUNT)
 const loadingMore = ref(false)
 const footerLang = ref('English')
+const tradeDialogOpen = ref(false)
+const tradeDialogSide = ref<'yes' | 'no'>('yes')
+const tradeDialogMarket = ref<{ id: string; title: string } | null>(null)
 const scrollRef = ref<HTMLElement | null>(null)
+
+function onCardOpenTrade(side: 'yes' | 'no', market?: { id: string; title: string }) {
+  tradeDialogSide.value = side
+  tradeDialogMarket.value = market ?? null
+  tradeDialogOpen.value = true
+}
 const sentinelRef = ref<HTMLElement | null>(null)
 let observer: IntersectionObserver | null = null
 
@@ -269,6 +315,18 @@ onUnmounted(() => {
   margin-top: 4px;
 }
 
+.trade-dialog--bare :deep(.v-overlay__content) {
+  padding: 0;
+  overflow: visible;
+}
+.trade-dialog--bare :deep(.v-card) {
+  box-shadow: none;
+}
+
+.trade-bottom-sheet :deep(.v-overlay__content) {
+  padding: 0;
+}
+
 /* 大屏最多 4 列，避免过宽时出现 5 列以上 */
 @media (min-width: 1320px) {
   .home-list {