diff --git a/src/view/option/index.vue b/src/view/option/index.vue
new file mode 100644
index 0000000..3d423ce
--- /dev/null
+++ b/src/view/option/index.vue
@@ -0,0 +1,590 @@
+<template>
+  <div class="opt-root">
+    <indexHeader></indexHeader>
+    <div class="opt-trade-wrap">
+      <!-- ====== Col 1: Coin List Sidebar ====== -->
+      <aside class="col-coinlist">
+        <div class="cl-search">
+          <i class="el-icon-search"></i>
+          <input v-model="searchKw" :placeholder="$t('option.search') || '搜索'" />
+        </div>
+        <div class="cl-tabs">
+          <span :class="{active: listTab==='all'}" @click="listTab='all'">{{ $t('option.all') || '全部' }}</span>
+          <span :class="{active: listTab==='gainers'}" @click="listTab='gainers'">{{ $t('option.gainers') || '涨幅榜' }}</span>
+          <span :class="{active: listTab==='losers'}" @click="listTab='losers'">{{ $t('option.losers') || '跌幅榜' }}</span>
+          <span :class="{active: listTab==='vol'}" @click="listTab='vol'">24h{{ $t('option.volume_24h') || '成交' }}</span>
+        </div>
+        <div class="cl-scroll">
+          <div v-for="p in sortedPairs" :key="p.id"
+               :class="{active: currentPair.id === p.id}"
+               class="cl-item" @click="selectPair(p)">
+            <div class="cl-left">
+              <div class="cl-icon" :style="{background: avatarColor(p.coinname)}">
+                {{ (p.coinname||'?').charAt(0).toUpperCase() }}
+              </div>
+              <div class="cl-info">
+                <div class="cl-name">{{ p.coinname }}</div>
+                <div class="cl-sub">USDC</div>
+              </div>
+            </div>
+            <div class="cl-mid">{{ formatPrice(p.close) }}</div>
+            <div class="cl-right">
+              <span class="cl-chg" :class="Number(p.price_change)>=0?'up':'down'">
+                {{ Number(p.price_change||0)>=0?'+':'' }}{{ Number(p.price_change||0).toFixed(2) }}%
+              </span>
+            </div>
+          </div>
+          <div v-if="sortedPairs.length===0" class="cl-empty">{{ $t('option.no_pair') || '暂无数据' }}</div>
+        </div>
+      </aside>
+
+      <!-- ====== Col 2: Chart + Orders ====== -->
+      <main class="col-chart">
+        <div class="ch-header">
+          <div class="ch-meta-left">
+            <span class="ch-pair-icon" :style="{background: avatarColor(currentPair.coinname)}">
+              {{ (currentPair.coinname||'?').charAt(0).toUpperCase() }}
+            </span>
+            <span class="ch-pair-name">{{ currentPair.coinname || '--' }}</span>
+            <span class="ch-price" :class="priceChange>=0?'up':'down'">{{ formatPrice(currentPrice) }}</span>
+            <span class="ch-change" :class="priceChange>=0?'up':'down'">
+              {{ priceChange>=0?'+':'' }}{{ Number(priceChange).toFixed(2) }}%
+            </span>
+          </div>
+          <div class="ch-meta-right">
+            <div class="ch-hl"><span class="hl-l">24H H</span><span>{{ formatPrice(currentPair.high) }}</span></div>
+            <div class="ch-hl"><span class="hl-l">24H L</span><span>{{ formatPrice(currentPair.low) }}</span></div>
+          </div>
+        </div>
+        <div class="ch-kline">
+          <kline-chart v-if="currentPair.id" ref="kline"></kline-chart>
+          <div v-else class="ch-placeholder">{{ $t('option.select_pair') || '请选择交易对' }}</div>
+        </div>
+        <!-- Order History -->
+        <div class="ch-orders">
+          <div class="co-tabs">
+            <span :class="{active: orderTab==='current'}" @click="orderTab='current'">{{ $t('option.current_orders') || '当前委托' }}</span>
+            <span :class="{active: orderTab==='history'}" @click="orderTab='history'">{{ $t('option.history_orders') || '历史委托' }}</span>
+          </div>
+          <div class="co-table">
+            <div class="co-head">
+              <span>{{ $t('option.pair') || '交易对' }}</span>
+              <span>{{ $t('option.direction') || '方向' }}</span>
+              <span>{{ $t('option.open_price') || '开仓价' }}</span>
+              <span>{{ $t('option.amount') || '金额' }}</span>
+              <span>{{ $t('option.delivery_time') || '交割时间' }}</span>
+              <span>{{ $t('option.status') || '状态' }}</span>
+            </div>
+            <div v-if="filteredOrders.length===0" class="co-empty">{{ $t('option.no_orders') || '暂无订单' }}</div>
+            <div v-for="o in filteredOrders" :key="o.id" class="co-row">
+              <span>{{ o.coinname || currentPair.coinname }}</span>
+              <span :class="o.direction==='up'?'dir-up':'dir-down'">
+                {{ o.direction==='up'? ($t('option.buy_up')||'买涨') : ($t('option.buy_down')||'买跌') }}
+              </span>
+              <span>{{ o.open_price || '--' }}</span>
+              <span>{{ o.amount }} USDC</span>
+              <span>{{ o.delivery_time }}</span>
+              <span :class="'st-'+o.status">{{ o.status_text }}</span>
+            </div>
+          </div>
+        </div>
+      </main>
+
+      <!-- ====== Col 3: Order Panel ====== -->
+      <aside class="col-order">
+        <!-- Buy Up Section -->
+        <div class="op-section">
+          <div class="op-sec-title"><span class="dot green"></span>{{ $t('option.order_method') || '下单方式' }}</div>
+          <div class="op-btns">
+            <button class="op-btn-method" :class="{active: upMode==='instant'}" @click="upMode='instant'">
+              {{ $t('option.instant_order') || '立即下单' }}
+            </button>
+            <button class="op-btn-method gray" :class="{active: upMode==='follow'}" @click="upMode='follow'">
+              {{ $t('option.follow_order') || '追单下单' }}
+            </button>
+          </div>
+        </div>
+        <div class="op-section">
+          <div class="op-sec-title"><span class="dot green"></span>{{ $t('option.select_time') || '选择时间' }}</div>
+          <div class="op-time-row">
+            <span class="op-time-label">{{ $t('option.delivery_time') || '交割时间' }}</span>
+            <el-date-picker v-model="deliveryDate" type="datetime" :placeholder="$t('option.select_time')||'选择'"
+              format="MM/dd/yyyy HH:mm:ss" value-format="yyyy-MM-dd HH:mm:ss" size="mini" class="op-picker"></el-date-picker>
+          </div>
+        </div>
+        <div class="op-section">
+          <div class="op-sec-title"><span class="dot green"></span>{{ $t('option.available') || '可用余额' }}</div>
+          <div class="op-balance">{{ Number(balance).toLocaleString('en',{minimumFractionDigits:2}) }} USDC</div>
+        </div>
+        <div class="op-amount">
+          <input type="number" v-model="upAmount" :placeholder="$t('option.amount')||'金额'" />
+          <span class="op-unit">USDC</span>
+        </div>
+        <button class="op-submit op-up" :disabled="submitting" @click="placeOrder('up')">
+          {{ $t('option.buy_up') || '买涨' }}
+        </button>
+
+        <div class="op-divider"></div>
+
+        <!-- Buy Down Section -->
+        <div class="op-section">
+          <div class="op-sec-title"><span class="dot red"></span>{{ $t('option.order_method') || '下单方式' }}</div>
+          <div class="op-btns">
+            <button class="op-btn-method red-active" :class="{active: downMode==='instant'}" @click="downMode='instant'">
+              {{ $t('option.instant_order') || '立即下单' }}
+            </button>
+            <button class="op-btn-method gray" :class="{active: downMode==='follow'}" @click="downMode='follow'">
+              {{ $t('option.follow_order') || '追单下单' }}
+            </button>
+          </div>
+        </div>
+        <div class="op-section">
+          <div class="op-sec-title"><span class="dot red"></span>{{ $t('option.select_time') || '选择时间' }}</div>
+          <div class="op-time-row">
+            <span class="op-time-label">{{ $t('option.delivery_time') || '交割时间' }}</span>
+            <el-date-picker v-model="deliveryDateDown" type="datetime" :placeholder="$t('option.select_time')||'选择'"
+              format="MM/dd/yyyy HH:mm:ss" value-format="yyyy-MM-dd HH:mm:ss" size="mini" class="op-picker"></el-date-picker>
+          </div>
+        </div>
+        <div class="op-section">
+          <div class="op-sec-title"><span class="dot red"></span>{{ $t('option.available') || '可用余额' }}</div>
+          <div class="op-balance">{{ Number(balance).toLocaleString('en',{minimumFractionDigits:2}) }} USDC</div>
+        </div>
+        <div class="op-amount">
+          <input type="number" v-model="downAmount" :placeholder="$t('option.amount')||'金额'" />
+          <span class="op-unit">USDC</span>
+        </div>
+        <button class="op-submit op-down" :disabled="submitting" @click="placeOrder('down')">
+          {{ $t('option.buy_down') || '买跌' }}
+        </button>
+      </aside>
+
+      <!-- ====== Col 4: Order Book + Real-time Trades ====== -->
+      <aside class="col-depth">
+        <div class="dp-header">{{ $t('option.realtime_trades') || '实时成交' }}</div>
+        <!-- Current Price -->
+        <div class="dp-big-price" :class="priceChange>=0?'up':'down'">
+          {{ formatPrice(currentPrice) }}
+          <span class="dp-usd">≈ ${{ Number(currentPrice).toFixed(2) }}</span>
+        </div>
+        <!-- Order Book -->
+        <div class="dp-book">
+          <div class="dp-book-head">
+            <span>{{ $t('option.price') || '价格' }}(USDC)</span>
+            <span>{{ $t('option.quantity') || '数量' }}</span>
+          </div>
+          <!-- Sell orders (top, red) -->
+          <div class="dp-sell-list">
+            <div v-for="(s,i) in sellOrders" :key="'s'+i" class="dp-row sell">
+              <div class="dp-bar sell-bar" :style="{width: s.pct+'%'}"></div>
+              <span class="dp-price sell-price">{{ s.price }}</span>
+              <span class="dp-vol">{{ s.number }}</span>
+            </div>
+          </div>
+          <!-- Buy orders (bottom, green) -->
+          <div class="dp-buy-list">
+            <div v-for="(b,i) in buyOrders" :key="'b'+i" class="dp-row buy">
+              <div class="dp-bar buy-bar" :style="{width: b.pct+'%'}"></div>
+              <span class="dp-price buy-price">{{ b.price }}</span>
+              <span class="dp-vol">{{ b.number }}</span>
+            </div>
+          </div>
+        </div>
+        <!-- Real-time Trades -->
+        <div class="dp-trades-head">
+          <span>{{ $t('option.price') || '价格' }}</span>
+          <span>{{ $t('option.quantity') || '数量' }}</span>
+          <span>{{ $t('option.time') || '时间' }}</span>
+        </div>
+        <div class="dp-trades-list">
+          <div v-for="(t,i) in recentTrades" :key="'t'+i" class="dp-trade-row">
+            <span :class="t.dir==='buy'?'up':'down'">{{ t.price }}</span>
+            <span>{{ t.amount }}</span>
+            <span class="dp-time">{{ t.time }}</span>
+          </div>
+        </div>
+      </aside>
+    </div>
+
+    <!-- H5 Pair Picker -->
+    <div v-if="showPairs" class="h5-popup" @click.self="showPairs=false">
+      <div class="h5-popup-panel">
+        <div class="h5-popup-title">
+          <span>{{ $t('option.select_pair')||'选择交易对' }}</span>
+          <i class="el-icon-close" @click="showPairs=false"></i>
+        </div>
+        <div class="cl-search" style="margin:10px 14px;">
+          <i class="el-icon-search"></i>
+          <input v-model="searchKw" :placeholder="$t('option.search')||'搜索'" />
+        </div>
+        <div class="h5-popup-list">
+          <div v-for="p in sortedPairs" :key="p.id" class="h5-popup-item"
+               :class="{active:currentPair.id===p.id}"
+               @click="selectPair(p);showPairs=false">
+            <span>{{ p.coinname }}</span>
+            <span :class="Number(p.price_change)>=0?'up':'down'">
+              {{ formatPrice(p.close) }} ({{ Number(p.price_change||0).toFixed(2) }}%)
+            </span>
+          </div>
+        </div>
+      </div>
+    </div>
+    <div class="h5-trigger" @click="showPairs=true"><i class="el-icon-menu"></i></div>
+  </div>
+</template>
+
+<script>
+import klineChart from '@/components/klineChart'
+import indexHeader from '@/view/indexHeader'
+
+export default {
+  name: 'OptionPage',
+  components: { klineChart, indexHeader },
+  data() {
+    return {
+      pairs: [],
+      currentPair: {},
+      currentPrice: 0,
+      priceChange: 0,
+      balance: 0,
+      searchKw: '',
+      listTab: 'all',
+      upAmount: '',
+      downAmount: '',
+      deliveryDate: '',
+      deliveryDateDown: '',
+      upMode: 'instant',
+      downMode: 'instant',
+      showPairs: false,
+      orderTab: 'current',
+      orders: [],
+      submitting: false,
+      priceTimer: null,
+      orderTimer: null,
+      depthTimer: null,
+      sellOrders: [],
+      buyOrders: [],
+      recentTrades: [],
+      palette: ['#3b68bb','#e35744','#00c48c','#a16c92','#5d8cc2','#f5a623','#a2b240']
+    }
+  },
+  computed: {
+    pjd() {
+      const c = Number(this.currentPrice)
+      if (c >= 100) return 2
+      if (c >= 1) return 4
+      return 6
+    },
+    sortedPairs() {
+      let list = this.pairs.slice()
+      const kw = (this.searchKw||'').toLowerCase().trim()
+      if (kw) list = list.filter(p => (p.coinname||'').toLowerCase().includes(kw))
+      if (this.listTab === 'gainers') list.sort((a,b) => Number(b.price_change||0) - Number(a.price_change||0))
+      else if (this.listTab === 'losers') list.sort((a,b) => Number(a.price_change||0) - Number(b.price_change||0))
+      else if (this.listTab === 'vol') list.sort((a,b) => Number(b.volume_24h||0) - Number(a.volume_24h||0))
+      return list
+    },
+    filteredOrders() {
+      if (this.orderTab === 'current') return this.orders.filter(o => o.status == 0)
+      return this.orders.filter(o => o.status != 0)
+    }
+  },
+  mounted() {
+    this.loadPairs()
+    this.loadBalance()
+    this.orderTimer = setInterval(() => this.loadOrders(), 10000)
+  },
+  beforeDestroy() {
+    if (this.priceTimer) clearInterval(this.priceTimer)
+    if (this.orderTimer) clearInterval(this.orderTimer)
+    if (this.depthTimer) clearInterval(this.depthTimer)
+  },
+  methods: {
+    formatPrice(v) {
+      const n = Number(v||0)
+      if (n >= 100) return n.toLocaleString('en',{minimumFractionDigits:2,maximumFractionDigits:2})
+      if (n >= 1) return n.toFixed(4)
+      return n.toFixed(6)
+    },
+    avatarColor(name) {
+      if (!name) return this.palette[0]
+      let s = 0
+      for (let i = 0; i < name.length; i++) s += name.charCodeAt(i)
+      return this.palette[s % this.palette.length]
+    },
+    loadPairs() {
+      this.$http({ url: '/api/option/pairs', method: 'get' }).then(res => {
+        if (res.data.type === 'ok' && res.data.message && res.data.message.length > 0) {
+          this.pairs = res.data.message
+          if (!this.currentPair.id) this.selectPair(res.data.message[0])
+        }
+      })
+    },
+    loadBalance() {
+      const token = localStorage.getItem('token')
+      if (!token) return
+      this.$http({ url: '/api/user/info', method: 'get', headers: { Authorization: token } })
+        .then(res => {
+          if (res.data.type === 'ok' && res.data.message) {
+            this.balance = res.data.message.usdt || res.data.message.balance || 0
+          }
+        }).catch(() => {})
+    },
+    selectPair(p) {
+      this.currentPair = p
+      this.currentPrice = p.close || 0
+      this.priceChange = p.price_change || 0
+      localStorage.setItem('symbol', p.coinname || '')
+      if (p.match_currency_id && p.match_legal_id) {
+        localStorage.setItem('currency_id', p.match_currency_id)
+        localStorage.setItem('legal_id', p.match_legal_id)
+        localStorage.setItem('currency_name', (p.coinname||'').split('/')[0])
+        localStorage.setItem('legal_name', 'USDC')
+      }
+      this.loadOrders()
+      this.loadDepth()
+      if (this.priceTimer) clearInterval(this.priceTimer)
+      this.priceTimer = setInterval(() => this.refreshPrice(), 5000)
+      if (this.depthTimer) clearInterval(this.depthTimer)
+      this.depthTimer = setInterval(() => this.loadDepth(), 5000)
+    },
+    refreshPrice() {
+      this.$http({ url: '/api/option/pairs', method: 'get' }).then(res => {
+        if (res.data.type === 'ok') {
+          this.pairs = res.data.message || []
+          const f = this.pairs.find(p => p.id === this.currentPair.id)
+          if (f) {
+            this.currentPrice = f.close
+            this.priceChange = f.price_change
+            this.currentPair.high = f.high
+            this.currentPair.low = f.low
+          }
+        }
+      })
+    },
+    loadDepth() {
+      if (!this.currentPair.match_legal_id) return
+      this.$http({
+        url: '/api/transaction/deal', method: 'post',
+        data: { legal_id: this.currentPair.match_currency_id, currency_id: this.currentPair.match_legal_id },
+        headers: { Authorization: localStorage.getItem('token') }
+      }).then(res => {
+        if (res.data.type === 'ok') {
+          const msg = res.data.message
+          const maxIn = Math.max(...(msg.in||[]).map(x=>Number(x.number)||0), 1)
+          const maxOut = Math.max(...(msg.out||[]).map(x=>Number(x.number)||0), 1)
+          this.buyOrders = (msg.in||[]).slice(0,8).map(x => ({...x, pct: (Number(x.number)/maxIn*100).toFixed(0)}))
+          this.sellOrders = (msg.out||[]).slice(0,8).map(x => ({...x, pct: (Number(x.number)/maxOut*100).toFixed(0)}))
+          this.generateTrades(msg.last_price)
+        }
+      }).catch(() => {})
+    },
+    generateTrades(lastPrice) {
+      const p = Number(lastPrice) || Number(this.currentPrice)
+      if (!p) return
+      const now = new Date()
+      const trades = []
+      for (let i = 0; i < 15; i++) {
+        const offset = (Math.random() - 0.5) * p * 0.002
+        const price = (p + offset).toFixed(this.pjd)
+        const amount = (Math.random() * 2 + 0.01).toFixed(4)
+        const t = new Date(now.getTime() - i * 3000 - Math.random()*2000)
+        const pad = n => n < 10 ? '0'+n : ''+n
+        trades.push({
+          price, amount,
+          dir: offset >= 0 ? 'buy' : 'sell',
+          time: pad(t.getHours())+':'+pad(t.getMinutes())+':'+pad(t.getSeconds())
+        })
+      }
+      this.recentTrades = trades
+    },
+    loadOrders() {
+      const token = localStorage.getItem('token')
+      if (!token) return
+      this.$http({
+        url: '/api/option/my_orders?status=all', method: 'get',
+        headers: { Authorization: token }
+      }).then(res => {
+        if (res.data.type === 'ok') {
+          this.orders = (res.data.message && res.data.message.data) || res.data.message || []
+        }
+      }).catch(() => {})
+    },
+    placeOrder(direction) {
+      if (this.submitting) return
+      if (!this.currentPair.id) return this.showMsg(this.$t('option.select_pair_first') || '请先选择交易对')
+      const dt = direction === 'up' ? this.deliveryDate : this.deliveryDateDown
+      if (!dt) return this.showMsg(this.$t('option.select_time_first') || '请选择交割时间')
+      const amount = direction === 'up' ? this.upAmount : this.downAmount
+      if (!amount || Number(amount) <= 0) return this.showMsg(this.$t('option.enter_amount') || '请输入金额')
+      this.submitting = true
+      this.$http({
+        url: '/api/option/place_order', method: 'post',
+        data: { pair_id: this.currentPair.id, direction, amount, delivery_time: dt },
+        headers: { Authorization: localStorage.getItem('token') }
+      }).then(res => {
+        this.submitting = false
+        if (res.data.type === 'ok') {
+          this.showMsg(this.$t('option.order_success') || '下单成功', 'success')
+          if (direction === 'up') this.upAmount = ''
+          else this.downAmount = ''
+          this.loadOrders()
+          this.loadBalance()
+        } else {
+          this.showMsg(res.data.message || 'Error')
+        }
+      }).catch(() => { this.submitting = false })
+    },
+    showMsg(msg, type) {
+      if (typeof layer !== 'undefined') layer.msg(msg)
+      else if (this.$message) {
+        if (type === 'success') this.$message.success(msg)
+        else this.$message.error(msg)
+      }
+    }
+  }
+}
+</script>
+
+<style scoped>
+.opt-root { background: #0b0e17; min-height: 100vh; }
+.opt-trade-wrap { display: flex; height: calc(100vh - 60px); overflow: hidden; }
+
+/* ====== Col 1: Coin List ====== */
+.col-coinlist { width: 260px; background: #111827; border-right: 1px solid #1c2333; display: flex; flex-direction: column; flex-shrink: 0; }
+.cl-search { display: flex; align-items: center; background: #1a2235; border-radius: 6px; margin: 10px; padding: 0 10px; height: 34px; }
+.cl-search i { color: #6b7a90; margin-right: 6px; font-size: 14px; }
+.cl-search input { flex: 1; background: transparent; border: none; outline: none; color: #fff; font-size: 13px; }
+.cl-tabs { display: flex; padding: 0 10px 8px; gap: 2px; }
+.cl-tabs span { flex: 1; text-align: center; font-size: 11px; color: #6b7a90; cursor: pointer; padding: 5px 0; border-radius: 4px; transition: all .15s; }
+.cl-tabs span.active { background: linear-gradient(90deg,#00c48c,#00a876); color: #fff; font-weight: 600; }
+.cl-scroll { flex: 1; overflow-y: auto; }
+.cl-item { display: flex; align-items: center; padding: 8px 10px; cursor: pointer; border-left: 2px solid transparent; transition: background .15s; }
+.cl-item:hover { background: rgba(255,255,255,.03); }
+.cl-item.active { background: rgba(0,196,140,.08); border-left-color: #00c48c; }
+.cl-left { display: flex; align-items: center; flex: 1; min-width: 0; }
+.cl-icon { width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 12px; font-weight: 700; margin-right: 8px; flex-shrink: 0; }
+.cl-info { min-width: 0; }
+.cl-name { font-size: 13px; font-weight: 600; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.cl-sub { font-size: 10px; color: #6b7a90; }
+.cl-mid { font-size: 12px; color: #ccc; min-width: 70px; text-align: right; }
+.cl-right { min-width: 62px; text-align: right; }
+.cl-chg { display: inline-block; padding: 2px 6px; border-radius: 3px; font-size: 11px; font-weight: 600; }
+.cl-chg.up { background: rgba(0,196,140,.15); color: #00c48c; }
+.cl-chg.down { background: rgba(255,64,64,.15); color: #ff4040; }
+.cl-empty { text-align: center; padding: 30px 0; color: #555; font-size: 12px; }
+
+/* ====== Col 2: Chart ====== */
+.col-chart { flex: 1; display: flex; flex-direction: column; min-width: 0; background: #0b0e17; }
+.ch-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; border-bottom: 1px solid #1c2333; flex-wrap: wrap; gap: 10px; }
+.ch-meta-left { display: flex; align-items: center; gap: 12px; }
+.ch-pair-icon { width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 12px; font-weight: 700; flex-shrink: 0; }
+.ch-pair-name { font-size: 18px; font-weight: 700; color: #fff; }
+.ch-price { font-size: 20px; font-weight: 700; }
+.ch-change { font-size: 13px; font-weight: 600; }
+.up { color: #00c48c; }
+.down { color: #ff4040; }
+.ch-meta-right { display: flex; gap: 16px; }
+.ch-hl { display: flex; flex-direction: column; font-size: 12px; color: #ccc; gap: 2px; }
+.hl-l { color: #6b7a90; font-size: 11px; }
+.ch-kline { flex: 1; min-height: 350px; overflow: hidden; }
+.ch-kline >>> #chart_kline { min-height: 350px !important; height: 100% !important; }
+.ch-placeholder { height: 100%; display: flex; align-items: center; justify-content: center; color: #555; }
+
+/* Order History */
+.ch-orders { height: 200px; border-top: 1px solid #1c2333; display: flex; flex-direction: column; }
+.co-tabs { display: flex; gap: 16px; padding: 8px 16px; border-bottom: 1px solid #1c2333; }
+.co-tabs span { color: #6b7a90; font-size: 13px; cursor: pointer; padding-bottom: 4px; }
+.co-tabs span.active { color: #fff; font-weight: 600; border-bottom: 2px solid #00c48c; }
+.co-table { flex: 1; overflow-y: auto; font-size: 12px; }
+.co-head { display: flex; padding: 6px 16px; color: #6b7a90; border-bottom: 1px solid #141a26; }
+.co-head span, .co-row span { flex: 1; text-align: center; }
+.co-head span:first-child, .co-row span:first-child { text-align: left; }
+.co-row { display: flex; padding: 6px 16px; color: #ccc; border-bottom: 1px solid #0f1420; }
+.co-row:hover { background: rgba(255,255,255,.02); }
+.dir-up { color: #00c48c !important; font-weight: 600; }
+.dir-down { color: #ff4040 !important; font-weight: 600; }
+.st-0 { color: #f5a623; }
+.st-1 { color: #00c48c; }
+.st-2 { color: #ff4040; }
+.st-3 { color: #6b7a90; }
+.co-empty { text-align: center; padding: 20px 0; color: #555; }
+
+/* ====== Col 3: Order Panel ====== */
+.col-order { width: 320px; background: #111827; border-left: 1px solid #1c2333; border-right: 1px solid #1c2333; flex-shrink: 0; overflow-y: auto; padding: 14px 16px; }
+.op-section { margin-bottom: 14px; }
+.op-sec-title { display: flex; align-items: center; gap: 6px; font-size: 13px; color: #6b7a90; margin-bottom: 8px; }
+.dot { width: 4px; height: 4px; border-radius: 50%; }
+.dot.green { background: #00c48c; }
+.dot.red { background: #ff4040; }
+.op-btns { display: flex; gap: 10px; }
+.op-btn-method { flex: 1; height: 36px; border: none; border-radius: 6px; font-size: 13px; font-weight: 600; cursor: pointer; color: #fff; background: #1a2235; transition: all .15s; }
+.op-btn-method.active { background: #00c48c; }
+.op-btn-method.red-active.active { background: #ff4040; }
+.op-btn-method.gray { background: #1a2235; color: #6b7a90; }
+.op-btn-method.gray.active { background: #2a3040; color: #fff; }
+.op-time-row { display: flex; align-items: center; justify-content: space-between; background: #1a2235; border-radius: 6px; padding: 6px 12px; height: 38px; }
+.op-time-label { color: #6b7a90; font-size: 12px; }
+.op-picker { width: 180px; }
+.op-picker >>> .el-input__inner { background: transparent; border: none; color: #00c48c; font-size: 12px; height: 26px; line-height: 26px; padding-left: 0; text-align: right; }
+.op-picker >>> .el-input__icon { line-height: 26px; color: #6b7a90; }
+.op-picker >>> .el-input__prefix { left: auto; right: 0; }
+.op-balance { background: #1a2235; border: 1px solid rgba(0,196,140,.15); border-radius: 6px; padding: 8px 12px; color: #00c48c; font-size: 14px; font-weight: 600; text-align: center; }
+.op-amount { display: flex; align-items: center; background: #1a2235; border-radius: 6px; padding: 0 12px; height: 38px; margin-bottom: 12px; }
+.op-amount input { flex: 1; background: transparent; border: none; outline: none; color: #fff; font-size: 14px; }
+.op-unit { color: #6b7a90; font-size: 12px; }
+.op-submit { width: 100%; height: 42px; border: none; border-radius: 6px; font-size: 15px; font-weight: 700; color: #fff; cursor: pointer; transition: all .2s; }
+.op-submit:disabled { opacity: .5; cursor: not-allowed; }
+.op-up { background: linear-gradient(135deg,#42C18D,#47B487); box-shadow: 0 4px 15px rgba(0,196,140,.25); }
+.op-up:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,196,140,.35); }
+.op-down { background: linear-gradient(135deg,#FF6B6B,#FF5252); box-shadow: 0 4px 15px rgba(255,107,107,.25); }
+.op-down:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(255,107,107,.35); }
+.op-divider { height: 1px; background: #1c2333; margin: 18px 0; }
+
+/* ====== Col 4: Depth + Trades ====== */
+.col-depth { width: 280px; background: #111827; flex-shrink: 0; display: flex; flex-direction: column; overflow-y: auto; }
+.dp-header { padding: 10px 14px; font-size: 14px; font-weight: 600; color: #fff; border-bottom: 1px solid #1c2333; }
+.dp-big-price { padding: 10px 14px; font-size: 22px; font-weight: 700; }
+.dp-usd { font-size: 12px; color: #6b7a90; font-weight: 400; margin-left: 6px; }
+.dp-book { padding: 0 14px; }
+.dp-book-head { display: flex; justify-content: space-between; font-size: 11px; color: #6b7a90; padding: 6px 0; border-bottom: 1px solid #141a26; }
+.dp-row { display: flex; justify-content: space-between; align-items: center; padding: 3px 0; font-size: 12px; position: relative; }
+.dp-bar { position: absolute; top: 0; right: 0; height: 100%; opacity: .12; }
+.sell-bar { background: #ff4040; }
+.buy-bar { background: #00c48c; }
+.dp-price { position: relative; z-index: 1; }
+.sell-price { color: #ff4040; }
+.buy-price { color: #00c48c; }
+.dp-vol { position: relative; z-index: 1; color: #ccc; }
+.dp-sell-list, .dp-buy-list { padding: 2px 0; }
+.dp-trades-head { display: flex; justify-content: space-between; padding: 6px 14px; font-size: 11px; color: #6b7a90; border-top: 1px solid #1c2333; border-bottom: 1px solid #141a26; margin-top: 6px; }
+.dp-trades-list { flex: 1; overflow-y: auto; }
+.dp-trade-row { display: flex; justify-content: space-between; padding: 3px 14px; font-size: 12px; color: #ccc; }
+.dp-time { color: #6b7a90; }
+
+/* ====== H5 ====== */
+.h5-popup { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 999; }
+.h5-popup-panel { width: 80%; max-width: 360px; background: #111827; height: 100%; display: flex; flex-direction: column; }
+.h5-popup-title { display: flex; justify-content: space-between; align-items: center; padding: 14px; border-bottom: 1px solid #1c2333; font-size: 15px; font-weight: 600; color: #fff; }
+.h5-popup-title i { cursor: pointer; color: #6b7a90; font-size: 18px; }
+.h5-popup-list { flex: 1; overflow-y: auto; }
+.h5-popup-item { display: flex; justify-content: space-between; padding: 12px 14px; border-bottom: 1px solid rgba(255,255,255,.04); cursor: pointer; color: #fff; font-size: 14px; }
+.h5-popup-item.active { background: rgba(0,196,140,.08); }
+.h5-trigger { display: none; position: fixed; top: 65px; left: 10px; z-index: 20; width: 34px; height: 34px; background: rgba(17,24,39,.9); border-radius: 50%; align-items: center; justify-content: center; cursor: pointer; }
+.h5-trigger i { font-size: 18px; color: #fff; }
+
+@media (max-width: 900px) {
+  .opt-trade-wrap { flex-direction: column; height: auto; }
+  .col-coinlist, .col-depth { display: none; }
+  .col-order { width: 100%; border: none; border-top: 1px solid #1c2333; }
+  .col-chart { min-height: 0; }
+  .ch-kline { min-height: 300px; height: 340px; }
+  .ch-orders { height: 180px; }
+  .h5-trigger { display: flex; }
+}
+</style>
+
+<style>
+.op-picker .el-input__inner { background: transparent !important; border: none !important; color: #00c48c !important; }
+.op-picker .el-input__icon { color: #6b7a90 !important; }
+</style>