diff --git a/ft-app/app/models.py b/ft-app/app/models.py
index 7052cfb..99dffb0 100644
--- a/ft-app/app/models.py
+++ b/ft-app/app/models.py
@@ -156,6 +156,7 @@ class OptionTrade(Base):
     product_code: Mapped[str] = mapped_column(String(10))
     contract_code: Mapped[str] = mapped_column(String(10), index=True)
     option_type: Mapped[str] = mapped_column(String(4))
+    direction: Mapped[str] = mapped_column(String(4))
     strike_price: Mapped[float] = mapped_column(Float)
     open_date: Mapped[date] = mapped_column(Date)
     open_price: Mapped[float] = mapped_column(Float)
@@ -170,5 +171,8 @@ class OptionTrade(Base):
         if self.close_price is None:
             return None
         mul = 20  # glass futures point value
-        result = (self.close_price - self.open_price) * mul - (self.open_fee or 0) - (self.close_fee or 0)
+        if self.direction == "sell":
+            result = (self.open_price - self.close_price) * mul - (self.open_fee or 0) - (self.close_fee or 0)
+        else:
+            result = (self.close_price - self.open_price) * mul - (self.open_fee or 0) - (self.close_fee or 0)
         return round(result, 2)
\ No newline at end of file
diff --git a/ft-app/app/routers/option_trades.py b/ft-app/app/routers/option_trades.py
index 3bfc158..7b7b96d 100644
--- a/ft-app/app/routers/option_trades.py
+++ b/ft-app/app/routers/option_trades.py
@@ -8,6 +8,7 @@ from app.models import OptionTrade, Contract, Product
 router = APIRouter(prefix="/options", tags=["options"])
 
 OPTION_TYPES = [("C", "C 看涨"), ("P", "P 看跌")]
+OPTION_DIRECTIONS = [("buy", "买"), ("sell", "卖")]
 
 
 def get_product_contracts(db: Session) -> dict:
@@ -43,6 +44,7 @@ def option_page(request: Request, db: Session = Depends(get_db)):
             active_nav="options",
             product_contracts=get_product_contracts(db),
             option_types=OPTION_TYPES,
+            option_directions=OPTION_DIRECTIONS,
             open_trades=open_trades,
             closed_trades=closed_trades,
             today=today_str(),
@@ -55,6 +57,7 @@ def open_trade(
     request: Request,
     contract_code: str = Form(...),
     option_type: str = Form(...),
+    direction: str = Form(...),
     strike_price: float = Form(...),
     open_date: str = Form(...),
     open_price: float = Form(...),
@@ -69,6 +72,7 @@ def open_trade(
         product_code=product_code,
         contract_code=code,
         option_type=option_type,
+        direction=direction,
         strike_price=strike_price,
         open_date=date.fromisoformat(open_date),
         open_price=open_price,
diff --git a/ft-app/app/templates/options.html b/ft-app/app/templates/options.html
index 2cd85eb..d3d7653 100644
--- a/ft-app/app/templates/options.html
+++ b/ft-app/app/templates/options.html
@@ -49,7 +49,7 @@
           <option value="">-- 先选品种 --</option>
         </select>
       </div>
-      <div class="form-group" style="margin-bottom:0;flex:0 0 auto;min-width:80px;">
+      <div class="form-group" style="margin-bottom:0;flex:0 0 auto;min-width:70px;">
         <label>类型</label>
         <select name="option_type" required>
           {% for v, label in option_types %}
@@ -57,6 +57,14 @@
           {% endfor %}
         </select>
       </div>
+      <div class="form-group" style="margin-bottom:0;flex:0 0 auto;min-width:60px;">
+        <label>买卖</label>
+        <select name="direction" required>
+          {% for v, label in option_directions %}
+          <option value="{{ v }}">{{ label }}</option>
+          {% endfor %}
+        </select>
+      </div>
       <div class="form-group" style="margin-bottom:0;flex:0 0 auto;min-width:90px;">
         <label>行权价</label>
         <input type="number" step="any" name="strike_price" required placeholder="1300" style="font-size:0.9rem;">
@@ -84,16 +92,23 @@
 {% if open_trades %}
 <div class="table-wrap">
 <table>
-  <tr><th>品种</th><th>合约</th><th>类型</th><th>行权价</th><th>权利金</th><th>开仓日期</th><th>手续费</th><th>操作</th></tr>
+  <tr><th>品种</th><th>合约</th><th>类型</th><th>买卖</th><th>行权价</th><th>权利金</th><th>开仓日期</th><th>手续费</th><th>操作</th></tr>
   {% for t in open_trades %}
   <tr>
     <td>{{ t.product_code }}</td>
     <td><strong>{{ t.contract_code.replace(t.product_code, '', 1) }}</strong></td>
     <td>
       {% if t.option_type == 'C' %}
-      <span class="badge badge-up">C 看涨</span>
+      <span class="badge badge-up">C</span>
       {% else %}
-      <span class="badge badge-down">P 看跌</span>
+      <span class="badge badge-down">P</span>
+      {% endif %}
+    </td>
+    <td>
+      {% if t.direction == 'sell' %}
+      <span class="badge badge-down">卖</span>
+      {% else %}
+      <span class="badge badge-up">买</span>
       {% endif %}
     </td>
     <td>{{ t.strike_price }}</td>
@@ -148,16 +163,23 @@
 <div class="section-title">已平仓 · {{ closed_trades|length }} 笔</div>
 <div class="table-wrap">
 <table>
-  <tr><th>品种</th><th>合约</th><th>类型</th><th>行权价</th><th>开仓</th><th>平仓</th><th>权利金</th><th>平仓价</th><th>开仓费</th><th>平仓费</th><th>盈亏</th><th>操作</th></tr>
+  <tr><th>品种</th><th>合约</th><th>类型</th><th>买卖</th><th>行权价</th><th>开仓</th><th>平仓</th><th>权利金</th><th>平仓价</th><th>开仓费</th><th>平仓费</th><th>盈亏</th><th>操作</th></tr>
   {% for t in closed_trades %}
   <tr>
     <td>{{ t.product_code }}</td>
     <td><strong>{{ t.contract_code.replace(t.product_code, '', 1) }}</strong></td>
     <td>
       {% if t.option_type == 'C' %}
-      <span class="badge badge-up">C 看涨</span>
+      <span class="badge badge-up">C</span>
       {% else %}
-      <span class="badge badge-down">P 看跌</span>
+      <span class="badge badge-down">P</span>
+      {% endif %}
+    </td>
+    <td>
+      {% if t.direction == 'sell' %}
+      <span class="badge badge-down">卖</span>
+      {% else %}
+      <span class="badge badge-up">买</span>
       {% endif %}
     </td>
     <td>{{ t.strike_price }}</td>
@@ -173,6 +195,8 @@
       <span style="font-weight:700;{% if p > 0 %}color:var(--success-fg);{% elif p < 0 %}color:var(--danger-fg);{% else %}color:var(--sub);{% endif %}">
         {% if p > 0 %}+{% endif %}{{ p }}
       </span>
+      <span style="color:var(--sub);cursor:pointer;font-size:0.75rem;margin-left:4px;"
+            onclick="showPnlDrawer('{{ t.product_code }} {{ t.contract_code.replace(t.product_code, '', 1) }} {{ t.option_type }}', '{{ t.direction }}', {{ t.open_price }}, {{ t.close_price }}, {{ t.open_fee or 0 }}, {{ t.close_fee or 0 }}, {{ p }})" title="计算过程">&#9432;</span>
       {% endif %}
     </td>
     <td>
@@ -233,4 +257,37 @@ function hideCloseForm() {
 }
 </script>
 {% endif %}
+
+<div id="pnlOverlay" style="display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:99;" onclick="hidePnlDrawer()"></div>
+<div id="pnlBox" style="display:none;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:24px;z-index:100;width:380px;max-width:90vw;">
+  <h3 style="margin-bottom:4px;" id="pnlTitle"></h3>
+  <p style="font-size:0.8rem;color:var(--sub);margin-bottom:14px;" id="pnlFormula"></p>
+  <table class="calc-table" style="width:100%;border-collapse:collapse;font-size:0.84rem;margin-bottom:12px;" id="pnlTable"></table>
+  <div style="font-size:1rem;" id="pnlResult"></div>
+  <button style="position:absolute;top:12px;right:16px;background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--sub);" onclick="hidePnlDrawer()">&times;</button>
+</div>
+
+<script>
+function showPnlDrawer(title, direction, openPrice, closePrice, openFee, closeFee, result) {
+  document.getElementById('pnlTitle').textContent = title;
+  var dirLabel = direction === 'sell' ? '卖' : '买';
+  document.getElementById('pnlFormula').textContent = '方向: ' + dirLabel + '  |  每点 20 元';
+  var diff = direction === 'sell' ? (openPrice - closePrice) : (closePrice - openPrice);
+  var gross = diff * 20;
+  var fees = openFee + closeFee;
+  var html = '<tr style="background:var(--th-bg);"><td>项目</td><td>计算</td><td style="text-align:right;">金额</td></tr>';
+  html += '<tr><td>价差</td><td>' + (direction === 'sell' ? openPrice + ' - ' + closePrice : closePrice + ' - ' + openPrice) + '</td><td style="text-align:right;">' + diff.toFixed(2) + ' 点</td></tr>';
+  html += '<tr><td>毛利</td><td>' + diff.toFixed(2) + ' × 20</td><td style="text-align:right;">' + gross.toFixed(2) + '</td></tr>';
+  html += '<tr><td>开仓手续费</td><td></td><td style="text-align:right;color:var(--danger-fg);">-' + openFee.toFixed(2) + '</td></tr>';
+  html += '<tr><td>平仓手续费</td><td></td><td style="text-align:right;color:var(--danger-fg);">-' + closeFee.toFixed(2) + '</td></tr>';
+  document.getElementById('pnlTable').innerHTML = html;
+  document.getElementById('pnlResult').innerHTML = '<b>盈亏 = ' + gross.toFixed(2) + ' - ' + openFee.toFixed(2) + ' - ' + closeFee.toFixed(2) + ' = <span style="color:' + (result > 0 ? 'var(--success-fg)' : result < 0 ? 'var(--danger-fg)' : 'var(--sub)') + ';">' + (result > 0 ? '+' : '') + result.toFixed(2) + '</span></b>';
+  document.getElementById('pnlOverlay').style.display = 'block';
+  document.getElementById('pnlBox').style.display = 'block';
+}
+function hidePnlDrawer() {
+  document.getElementById('pnlOverlay').style.display = 'none';
+  document.getElementById('pnlBox').style.display = 'none';
+}
+</script>
 {% endblock %}
diff --git a/ft-app/app/templates/trades.html b/ft-app/app/templates/trades.html
index 31115df..c1bc0c2 100644
--- a/ft-app/app/templates/trades.html
+++ b/ft-app/app/templates/trades.html
@@ -167,6 +167,8 @@
       <span style="font-weight:700;{% if p > 0 %}color:var(--success-fg);{% elif p < 0 %}color:var(--danger-fg);{% else %}color:var(--sub);{% endif %}">
         {% if p > 0 %}+{% endif %}{{ p }}
       </span>
+      <span style="color:var(--sub);cursor:pointer;font-size:0.75rem;margin-left:4px;"
+            onclick="showPnlDrawer('{{ t.product_code }} {{ t.contract_code.replace(t.product_code, '', 1) }}', '{{ t.direction }}', {{ t.open_price }}, {{ t.close_price }}, {{ t.open_fee or 0 }}, {{ t.close_fee or 0 }}, {{ p }})" title="计算过程">&#9432;</span>
       {% endif %}
     </td>
     <td>
@@ -227,4 +229,37 @@ function hideCloseForm() {
 }
 </script>
 {% endif %}
+
+<div id="pnlOverlay" style="display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:99;" onclick="hidePnlDrawer()"></div>
+<div id="pnlBox" style="display:none;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:24px;z-index:100;width:380px;max-width:90vw;">
+  <h3 style="margin-bottom:4px;" id="pnlTitle"></h3>
+  <p style="font-size:0.8rem;color:var(--sub);margin-bottom:14px;" id="pnlFormula"></p>
+  <table class="calc-table" style="width:100%;border-collapse:collapse;font-size:0.84rem;margin-bottom:12px;" id="pnlTable"></table>
+  <div style="font-size:1rem;" id="pnlResult"></div>
+  <button style="position:absolute;top:12px;right:16px;background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--sub);" onclick="hidePnlDrawer()">&times;</button>
+</div>
+
+<script>
+function showPnlDrawer(title, direction, openPrice, closePrice, openFee, closeFee, result) {
+  document.getElementById('pnlTitle').textContent = title;
+  var dirLabel = direction === 'short' ? '空' : '多';
+  document.getElementById('pnlFormula').textContent = '方向: ' + dirLabel + '  |  每点 20 元';
+  var diff = direction === 'short' ? (openPrice - closePrice) : (closePrice - openPrice);
+  var gross = diff * 20;
+  var fees = openFee + closeFee;
+  var html = '<tr style="background:var(--th-bg);"><td>项目</td><td>计算</td><td style="text-align:right;">金额</td></tr>';
+  html += '<tr><td>价差</td><td>' + (direction === 'short' ? openPrice + ' - ' + closePrice : closePrice + ' - ' + openPrice) + '</td><td style="text-align:right;">' + diff.toFixed(2) + ' 点</td></tr>';
+  html += '<tr><td>毛利</td><td>' + diff.toFixed(2) + ' × 20</td><td style="text-align:right;">' + gross.toFixed(2) + '</td></tr>';
+  html += '<tr><td>开仓手续费</td><td></td><td style="text-align:right;color:var(--danger-fg);">-' + openFee.toFixed(2) + '</td></tr>';
+  html += '<tr><td>平仓手续费</td><td></td><td style="text-align:right;color:var(--danger-fg);">-' + closeFee.toFixed(2) + '</td></tr>';
+  document.getElementById('pnlTable').innerHTML = html;
+  document.getElementById('pnlResult').innerHTML = '<b>盈亏 = ' + gross.toFixed(2) + ' - ' + openFee.toFixed(2) + ' - ' + closeFee.toFixed(2) + ' = <span style="color:' + (result > 0 ? 'var(--success-fg)' : result < 0 ? 'var(--danger-fg)' : 'var(--sub)') + ';">' + (result > 0 ? '+' : '') + result.toFixed(2) + '</span></b>';
+  document.getElementById('pnlOverlay').style.display = 'block';
+  document.getElementById('pnlBox').style.display = 'block';
+}
+function hidePnlDrawer() {
+  document.getElementById('pnlOverlay').style.display = 'none';
+  document.getElementById('pnlBox').style.display = 'none';
+}
+</script>
 {% endblock %}