BIT

core/context_processors.py

@@ -1,6 +1,6 @@
 from .models import SiteSettings
 
-def site_settings(request):
+def project_context(request):
     settings = SiteSettings.objects.first()
     if not settings:
         settings = SiteSettings.objects.create(site_name="BitCrypto")
@@ -9,3 +9,6 @@ def site_settings(request):
         'project_name': settings.site_name,
         'project_description': "全球领先的数字资产交易平台"
     }
+
+# Alias for compatibility if needed
+site_settings = project_context

core/migrations/0006_remove_order_close_price_remove_order_entry_price_and_more.py

@@ -0,0 +1,69 @@
+# Generated by Django 5.2.7 on 2026-02-06 11:38
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0005_sitesettings'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='order',
+            name='close_price',
+        ),
+        migrations.RemoveField(
+            model_name='order',
+            name='entry_price',
+        ),
+        migrations.RemoveField(
+            model_name='order',
+            name='filled_amount',
+        ),
+        migrations.RemoveField(
+            model_name='order',
+            name='profit_loss',
+        ),
+        migrations.AddField(
+            model_name='account',
+            name='frozen_balance',
+            field=models.DecimalField(decimal_places=8, default=0, max_digits=30, verbose_name='冻结余额 (USDT)'),
+        ),
+        migrations.AddField(
+            model_name='order',
+            name='total_usdt',
+            field=models.DecimalField(blank=True, decimal_places=8, max_digits=30, null=True, verbose_name='成交额 (USDT)'),
+        ),
+        migrations.AlterField(
+            model_name='order',
+            name='amount',
+            field=models.DecimalField(decimal_places=8, max_digits=30, verbose_name='数量/手数'),
+        ),
+        migrations.AlterField(
+            model_name='order',
+            name='status',
+            field=models.CharField(choices=[('PENDING', '等待成交'), ('PARTIALLY_FILLED', '部分成交'), ('FILLED', '已成交'), ('CANCELED', '已撤销')], default='PENDING', max_length=20, verbose_name='状态'),
+        ),
+        migrations.CreateModel(
+            name='Position',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('symbol', models.CharField(max_length=20, verbose_name='交易对')),
+                ('side', models.CharField(choices=[('LONG', '做多'), ('SHORT', '做空')], max_length=10, verbose_name='方向')),
+                ('leverage', models.IntegerField(default=20, verbose_name='杠杆')),
+                ('entry_price', models.DecimalField(decimal_places=8, max_digits=30, verbose_name='开仓均价')),
+                ('lots', models.DecimalField(decimal_places=8, max_digits=30, verbose_name='手数')),
+                ('margin', models.DecimalField(decimal_places=8, max_digits=30, verbose_name='占用保证金')),
+                ('is_active', models.BooleanField(default=True, verbose_name='是否持仓')),
+                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='时间')),
+                ('account', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='positions', to='core.account')),
+            ],
+            options={
+                'verbose_name': '持仓',
+                'verbose_name_plural': '持仓管理',
+            },
+        ),
+    ]

core/models.py

@@ -57,6 +57,8 @@ class Account(models.Model):
     account_type = models.CharField(max_length=20, choices=ACCOUNT_TYPES, default='SIMULATED', verbose_name=_("账户类型"))
     
     balance = models.DecimalField(max_digits=30, decimal_places=8, default=0, verbose_name=_("可用余额 (USDT)"))
+    frozen_balance = models.DecimalField(max_digits=30, decimal_places=8, default=0, verbose_name=_("冻结余额 (USDT)"))
+    
     credit_score = models.IntegerField(default=80, verbose_name=_("信用分"))
     kyc_status = models.CharField(max_length=20, choices=KYC_STATUS, default='UNVERIFIED', verbose_name=_("实名认证状态"))
     
@@ -95,11 +97,10 @@ class Order(models.Model):
     TYPE_CHOICES = (('LIMIT', _('限价')), ('MARKET', _('市价')))
     TRADE_TYPE_CHOICES = (('SPOT', _('现货')), ('CONTRACT', _('合约')))
     STATUS_CHOICES = (
-        ('LIVE', _('进行中')),
+        ('PENDING', _('等待成交')),
         ('PARTIALLY_FILLED', _('部分成交')),
         ('FILLED', _('已成交')),
         ('CANCELED', _('已撤销')),
-        ('CLOSED', _('已平仓')),
     )
 
     account = models.ForeignKey(Account, on_delete=models.CASCADE, related_name='orders')
@@ -109,15 +110,11 @@ class Order(models.Model):
     order_type = models.CharField(max_length=10, choices=TYPE_CHOICES, verbose_name=_("类型"))
     
     price = models.DecimalField(max_digits=30, decimal_places=8, null=True, blank=True, verbose_name=_("委托价格"))
-    amount = models.DecimalField(max_digits=30, decimal_places=8, verbose_name=_("数量"))
+    amount = models.DecimalField(max_digits=30, decimal_places=8, verbose_name=_("数量/手数"))
-    filled_amount = models.DecimalField(max_digits=30, decimal_places=8, default=0, verbose_name=_("已成交数量"))
+    total_usdt = models.DecimalField(max_digits=30, decimal_places=8, null=True, blank=True, verbose_name=_("成交额 (USDT)"))
     
     leverage = models.IntegerField(default=1, verbose_name=_("杠杆倍数"))
-    entry_price = models.DecimalField(max_digits=30, decimal_places=8, null=True, blank=True, verbose_name=_("入场价格"))
+    status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='PENDING', verbose_name=_("状态"))
-    close_price = models.DecimalField(max_digits=30, decimal_places=8, null=True, blank=True, verbose_name=_("平仓价格"))
-    profit_loss = models.DecimalField(max_digits=30, decimal_places=8, default=0, verbose_name=_("盈亏"))
-    
-    status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='LIVE', verbose_name=_("状态"))
     created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("创建时间"))
 
     class Meta:
@@ -127,6 +124,25 @@ class Order(models.Model):
     def __str__(self):
         return f"{self.trade_type} {self.side} {self.amount} {self.symbol}"
 
+class Position(models.Model):
+    SIDE_CHOICES = (('LONG', _('做多')), ('SHORT', _('做空')))
+    account = models.ForeignKey(Account, on_delete=models.CASCADE, related_name='positions')
+    symbol = models.CharField(max_length=20, verbose_name=_("交易对"))
+    side = models.CharField(max_length=10, choices=SIDE_CHOICES, verbose_name=_("方向"))
+    leverage = models.IntegerField(default=20, verbose_name=_("杠杆"))
+    entry_price = models.DecimalField(max_digits=30, decimal_places=8, verbose_name=_("开仓均价"))
+    lots = models.DecimalField(max_digits=30, decimal_places=8, verbose_name=_("手数"))
+    margin = models.DecimalField(max_digits=30, decimal_places=8, verbose_name=_("占用保证金"))
+    is_active = models.BooleanField(default=True, verbose_name=_("是否持仓"))
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("时间"))
+
+    class Meta:
+        verbose_name = _("持仓")
+        verbose_name_plural = _("持仓管理")
+
+    def __str__(self):
+        return f"{self.account.uid} {self.symbol} {self.side} {self.lots}张"
+
 class Transaction(models.Model):
     TX_TYPE = (('deposit', _('充值')), ('withdraw', _('提现')))
     TX_STATUS = (('pending', _('待处理')), ('completed', _('成功')), ('failed', _('失败')))

core/templates/base.html

@@ -100,10 +100,10 @@
             </button>
             <div class="collapse navbar-collapse" id="navbarNav">
                 <ul class="navbar-nav me-auto">
-                    <li class="nav-item"><a class="nav-link" href="{% url 'index' %}">首页</a></li>
+                    <li class="nav-item"><a class="nav-link" href="{% url 'core:index' %}">首页</a></li>
-                    <li class="nav-item"><a class="nav-link" href="{% url 'spot_trade' %}">现货交易</a></li>
+                    <li class="nav-item"><a class="nav-link" href="{% url 'core:spot_trade' %}">现货交易</a></li>
-                    <li class="nav-item"><a class="nav-link" href="{% url 'contract_trade' %}">合约交易</a></li>
+                    <li class="nav-item"><a class="nav-link" href="{% url 'core:contract_trade' %}">合约交易</a></li>
-                    <li class="nav-item"><a class="nav-link" href="{% url 'market_center' %}">行情中心</a></li>
+                    <li class="nav-item"><a class="nav-link" href="{% url 'core:market_center' %}">行情中心</a></li>
                 </ul>
                 <div class="d-flex align-items-center">
                     {% if user.is_authenticated %}
@@ -113,15 +113,15 @@
                                 <span>{{ user.username }}</span>
                             </a>
                             <ul class="dropdown-menu dropdown-menu-dark dropdown-menu-end shadow">
-                                <li><a class="dropdown-item" href="{% url 'profile' %}"><i class="bi bi-person-badge me-2"></i>个人中心</a></li>
+                                <li><a class="dropdown-item" href="{% url 'core:profile' %}"><i class="bi bi-person-badge me-2"></i>个人中心</a></li>
-                                <li><a class="dropdown-item" href="{% url 'profile' %}"><i class="bi bi-wallet2 me-2"></i>我的资产</a></li>
+                                <li><a class="dropdown-item" href="{% url 'core:profile' %}"><i class="bi bi-wallet2 me-2"></i>我的资产</a></li>
                                 <li><hr class="dropdown-divider"></li>
                                 <li><a class="dropdown-item text-danger" href="/login/"><i class="bi bi-box-arrow-right me-2"></i>安全退出</a></li>
                             </ul>
                         </div>
                     {% else %}
-                        <a href="{% url 'login' %}" class="nav-link me-3">登录</a>
+                        <a href="{% url 'core:login' %}" class="nav-link me-3">登录</a>
-                        <a href="{% url 'register' %}" class="btn btn-primary">立即注册</a>
+                        <a href="{% url 'core:register' %}" class="btn btn-primary">立即注册</a>
                     {% endif %}
                 </div>
             </div>
@@ -149,32 +149,32 @@
                 <div class="col-md-2 offset-md-1">
                     <h6>产品服务</h6>
                     <ul class="list-unstyled">
-                        <li><a href="{% url 'spot_trade' %}">现货交易</a></li>
+                        <li><a href="{% url 'core:spot_trade' %}">现货交易</a></li>
-                        <li><a href="{% url 'contract_trade' %}">永续合约</a></li>
+                        <li><a href="{% url 'core:contract_trade' %}">永续合约</a></li>
-                        <li><a href="{% url 'placeholder' '币安赚币' %}">理财中心</a></li>
+                        <li><a href="{% url 'core:placeholder' '币安赚币' %}">理财中心</a></li>
                     </ul>
                 </div>
                 <div class="col-md-2">
                     <h6>法律法规</h6>
                     <ul class="list-unstyled">
-                        <li><a href="{% url 'placeholder' '服务条款' %}">服务条款</a></li>
+                        <li><a href="{% url 'core:placeholder' '服务条款' %}">服务条款</a></li>
-                        <li><a href="{% url 'placeholder' '隐私政策' %}">隐私政策</a></li>
+                        <li><a href="{% url 'core:placeholder' '隐私政策' %}">隐私政策</a></li>
-                        <li><a href="{% url 'placeholder' '免责声明' %}">免责声明</a></li>
+                        <li><a href="{% url 'core:placeholder' '免责声明' %}">免责声明</a></li>
                     </ul>
                 </div>
                 <div class="col-md-2">
                     <h6>客户支持</h6>
                     <ul class="list-unstyled">
-                        <li><a href="{% url 'placeholder' '帮助中心' %}">帮助中心</a></li>
+                        <li><a href="{% url 'core:placeholder' '帮助中心' %}">帮助中心</a></li>
-                        <li><a href="{% url 'placeholder' '公告中心' %}">公告中心</a></li>
+                        <li><a href="{% url 'core:placeholder' '公告中心' %}">公告中心</a></li>
-                        <li><a href="{% url 'placeholder' '提交请求' %}">提交工单</a></li>
+                        <li><a href="{% url 'core:placeholder' '提交请求' %}">提交工单</a></li>
                     </ul>
                 </div>
                 <div class="col-md-2">
                     <h6>关于我们</h6>
                     <ul class="list-unstyled">
-                        <li><a href="{% url 'placeholder' '公司简介' %}">公司简介</a></li>
+                        <li><a href="{% url 'core:placeholder' '公司简介' %}">公司简介</a></li>
-                        <li><a href="{% url 'placeholder' '加入我们' %}">招贤纳士</a></li>
+                        <li><a href="{% url 'core:placeholder' '加入我们' %}">招贤纳士</a></li>
                     </ul>
                 </div>
             </div>

core/templates/core/index.html

@@ -18,8 +18,8 @@
                         <h1 class="display-3 fw-bold mb-4">开启您的<br><span style="color: var(--accent-color);">加密货币</span>之旅</h1>
                         <p class="lead text-light mb-5">在全球最受信任的交易平台买卖和存储加密货币。BitCrypto 为您提供安全、稳定、高效的服务。</p>
                         <div class="d-flex gap-3">
-                            <a href="{% url 'register' %}" class="btn btn-warning btn-lg px-5 fw-bold">立即注册</a>
+                            <a href="{% url 'core:register' %}" class="btn btn-warning btn-lg px-5 fw-bold">立即注册</a>
-                            <a href="{% url 'spot_trade' %}" class="btn btn-outline-light btn-lg px-5 fw-bold">开始交易</a>
+                            <a href="{% url 'core:spot_trade' %}" class="btn btn-outline-light btn-lg px-5 fw-bold">开始交易</a>
                         </div>
                     </div>
                 </div>
@@ -32,7 +32,7 @@
                     <div class="col-lg-7 text-lg-end">
                         <h1 class="display-4 fw-bold mb-4">领先的<span style="color: var(--accent-color);">衍生品</span>交易平台</h1>
                         <p class="lead text-light mb-5">最高200倍杠杆，支持多种永续合约，毫秒级撮合引擎。多空双向交易，灵活捕捉市场机会。</p>
-                        <a href="{% url 'contract_trade' %}" class="btn btn-warning btn-lg px-5 fw-bold">进入合约交易</a>
+                        <a href="{% url 'core:contract_trade' %}" class="btn btn-warning btn-lg px-5 fw-bold">进入合约交易</a>
                     </div>
                 </div>
             </div>
@@ -98,7 +98,7 @@
             <h2 class="fw-bold">热门行情</h2>
             <p class="text-secondary mb-0">实时获取全球顶级加密货币价格走势</p>
         </div>
-        <a href="{% url 'market_center' %}" class="text-warning text-decoration-none fw-bold">查看更多市场 <i class="bi bi-arrow-right"></i></a>
+        <a href="{% url 'core:market_center' %}" class="text-warning text-decoration-none fw-bold">查看更多市场 <i class="bi bi-arrow-right"></i></a>
     </div>
 
     <div class="table-responsive">

core/templates/core/login.html

@@ -41,7 +41,7 @@
         </form>
 
         <div class="text-center">
-            <p class="text-secondary small">还没有账户? <a href="{% url 'register' %}" class="text-warning text-decoration-none fw-bold">立即注册</a></p>
+            <p class="text-secondary small">还没有账户? <a href="{% url 'core:register' %}" class="text-warning text-decoration-none fw-bold">立即注册</a></p>
         </div>
 
         <div class="mt-5 pt-4 border-top border-secondary text-center">

core/templates/core/market_center.html

@@ -0,0 +1,107 @@
+{% extends 'base.html' %}
+{% load static %}
+
+{% block content %}
+<div class="container py-5">
+    <div class="d-flex justify-content-between align-items-center mb-4">
+        <h2 class="fw-bold text-white mb-0">行情中心</h2>
+        <div class="input-group w-auto">
+            <span class="input-group-text bg-dark border-secondary"><i class="bi bi-search text-secondary"></i></span>
+            <input type="text" id="market-search" class="form-control bg-dark text-white border-secondary" placeholder="搜索币种" onkeyup="filterMarket()">
+        </div>
+    </div>
+
+    <div class="glass-card overflow-hidden" style="border-radius: 12px; border: 1px solid #2b3139; background: #161a1e;">
+        <div class="table-responsive">
+            <table class="table table-dark table-hover mb-0 align-middle">
+                <thead>
+                    <tr class="text-secondary border-bottom border-secondary">
+                        <th class="ps-4 py-3">币种</th>
+                        <th class="py-3">最新价</th>
+                        <th class="py-3">24h 涨跌</th>
+                        <th class="py-3">24h 最高</th>
+                        <th class="py-3">24h 最低</th>
+                        <th class="py-3">24h 成交额</th>
+                        <th class="pe-4 py-3 text-end">操作</th>
+                    </tr>
+                </thead>
+                <tbody id="market-table-body">
+                    {% for crypto in cryptos %}
+                    <tr class="market-row" data-symbol="{{ crypto.symbol }}">
+                        <td class="ps-4 py-3">
+                            <div class="d-flex align-items-center">
+                                <img src="https://static.okx.com/cdn/oksupport/asset/currency/icon/{{ crypto.symbol|lower }}.png" 
+                                     class="rounded-circle me-3" width="32" height="32" 
+                                     onerror="this.src='https://static.okx.com/cdn/oksupport/asset/currency/icon/generic.png'">
+                                <div>
+                                    <div class="fw-bold text-white">{{ crypto.symbol }}</div>
+                                    <div class="text-secondary small">{{ crypto.name }}</div>
+                                </div>
+                            </div>
+                        </td>
+                        <td class="py-3 fw-bold price-val">--</td>
+                        <td class="py-3 change-val">--</td>
+                        <td class="py-3 high-val text-secondary">--</td>
+                        <td class="py-3 low-val text-secondary">--</td>
+                        <td class="py-3 vol-val text-secondary">--</td>
+                        <td class="pe-4 py-3 text-end">
+                            <a href="{% url 'core:trade' 'spot' %}?symbol={{ crypto.symbol }}USDT" class="btn btn-outline-warning btn-sm px-3 me-2">现货</a>
+                            <a href="{% url 'core:trade' 'contract' %}?symbol={{ crypto.symbol }}USDT" class="btn btn-warning btn-sm px-3 text-dark">合约</a>
+                        </td>
+                    </tr>
+                    {% endfor %}
+                </tbody>
+            </table>
+        </div>
+    </div>
+</div>
+
+<style>
+    .glass-card { background: rgba(22, 26, 30, 0.8); backdrop-filter: blur(10px); }
+    .table-dark { --bs-table-bg: transparent; }
+    .table-hover tbody tr:hover { background-color: rgba(255, 255, 255, 0.05) !important; }
+</style>
+{% endblock %}
+
+{% block scripts %}
+<script>
+    async function updateMarket() {
+        try {
+            const r = await fetch('https://api.binance.com/api/v3/ticker/24hr');
+            const data = await r.json();
+            const tickers = {};
+            data.forEach(t => {
+                if (t.symbol.endsWith('USDT')) {
+                    tickers[t.symbol.replace('USDT', '')] = t;
+                }
+            });
+
+            document.querySelectorAll('.market-row').forEach(row => {
+                const sym = row.getAttribute('data-symbol');
+                const t = tickers[sym];
+                if (t) {
+                    const chg = parseFloat(t.priceChangePercent);
+                    row.querySelector('.price-val').textContent = parseFloat(t.lastPrice).toLocaleString();
+                    row.querySelector('.price-val').className = 'py-3 fw-bold price-val ' + (chg >= 0 ? 'text-success' : 'text-danger');
+                    row.querySelector('.change-val').textContent = (chg >= 0 ? '+' : '') + chg.toFixed(2) + '%';
+                    row.querySelector('.change-val').className = 'py-3 change-val ' + (chg >= 0 ? 'text-success' : 'text-danger');
+                    row.querySelector('.high-val').textContent = parseFloat(t.highPrice).toLocaleString();
+                    row.querySelector('.low-val').textContent = parseFloat(t.lowPrice).toLocaleString();
+                    row.querySelector('.vol-val').textContent = (parseFloat(t.quoteVolume) / 1000000).toFixed(2) + 'M';
+                }
+            });
+        } catch(e) {}
+    }
+
+    function filterMarket() {
+        const query = document.getElementById('market-search').value.toLowerCase();
+        document.querySelectorAll('.market-row').forEach(row => {
+            const sym = row.getAttribute('data-symbol').toLowerCase();
+            row.style.display = sym.includes(query) ? '' : 'none';
+        });
+    }
+
+    updateMarket();
+    setInterval(updateMarket, 3000);
+</script>
+{% endblock %}

core/templates/core/profile.html

@@ -23,8 +23,8 @@
             </div>
             <div class="col-lg-auto mt-3 mt-lg-0">
                 <div class="d-flex gap-2">
-                    <a href="{% url 'deposit' %}" class="btn btn-warning fw-bold px-4">充币</a>
+                    <a href="{% url 'core:deposit' %}" class="btn btn-warning fw-bold px-4">充币</a>
-                    <a href="{% url 'withdraw' %}" class="btn btn-outline-light px-4">提币</a>
+                    <a href="{% url 'core:withdraw' %}" class="btn btn-outline-light px-4">提币</a>
                 </div>
             </div>
         </div>
@@ -122,7 +122,7 @@
                                 <div class="fw-bold text-white">身份认证 (KYC)</div>
                                 <p class="text-secondary x-small mb-0">提升提现额度至 100 BTC</p>
                             </div>
-                            <a href="{% url 'verify' %}" class="btn btn-link btn-sm text-warning ms-auto text-decoration-none">立即认证</a>
+                            <a href="{% url 'core:verify' %}" class="btn btn-link btn-sm text-warning ms-auto text-decoration-none">立即认证</a>
                         </div>
                     </div>
                 </div>

core/templates/core/register.html

@@ -66,7 +66,7 @@
                 <div class="form-check">
                     <input class="form-check-input bg-transparent border-secondary" type="checkbox" id="terms" required checked>
                     <label class="form-check-label text-secondary small" for="terms">
-                        我已阅读并同意 <a href="{% url 'placeholder' '服务条款' %}" class="text-warning">服务条款</a> 和 <a href="{% url 'placeholder' '隐私政策' %}" class="text-warning">隐私政策</a>
+                        我已阅读并同意 <a href="{% url 'core:placeholder' '服务条款' %}" class="text-warning">服务条款</a> 和 <a href="{% url 'core:placeholder' '隐私政策' %}" class="text-warning">隐私政策</a>
                     </label>
                 </div>
             </div>
@@ -75,7 +75,7 @@
         </form>
 
         <div class="text-center">
-            <p class="text-secondary small">已有账户? <a href="{% url 'login' %}" class="text-warning text-decoration-none fw-bold">立即登录</a></p>
+            <p class="text-secondary small">已有账户? <a href="{% url 'core:login' %}" class="text-warning text-decoration-none fw-bold">立即登录</a></p>
         </div>
     </div>
 </div>

core/templates/core/trade.html

@@ -57,8 +57,8 @@
                     </div>
                 </div>
                 <div class="d-flex gap-1 bg-dark p-1" style="border-radius: 4px;">
-                    <a href="{% url 'trade' 'spot' %}?symbol={{ symbol }}" class="btn btn-sm {% if trade_type == 'SPOT' %}btn-warning text-dark{% else %}btn-transparent text-secondary{% endif %} fw-bold px-3">现货</a>
+                    <a href="{% url 'core:trade' 'spot' %}?symbol={{ symbol }}" class="btn btn-sm {% if trade_type == 'SPOT' %}btn-warning text-dark{% else %}btn-transparent text-secondary{% endif %} fw-bold px-3">现货</a>
-                    <a href="{% url 'trade' 'contract' %}?symbol={{ symbol }}" class="btn btn-sm {% if trade_type == 'CONTRACT' %}btn-warning text-dark{% else %}btn-transparent text-secondary{% endif %} fw-bold px-3">合约</a>
+                    <a href="{% url 'core:trade' 'contract' %}?symbol={{ symbol }}" class="btn btn-sm {% if trade_type == 'CONTRACT' %}btn-warning text-dark{% else %}btn-transparent text-secondary{% endif %} fw-bold px-3">合约</a>
                 </div>
             </div>
 
@@ -68,7 +68,7 @@
             </div>
 
             <!-- Trading Forms -->
-            <div class="glass-card p-3" style="border-radius: 4px; border: 1px solid #2b3139; background: #161a1e;">
+            <div class="glass-card p-3 mb-2" style="border-radius: 4px; border: 1px solid #2b3139; background: #161a1e;">
                 {% if trade_type == 'SPOT' %}
                 <div class="row g-4">
                     <!-- Buy -->
@@ -87,9 +87,9 @@
                         </div>
 
                         <div class="input-group input-group-sm mb-3">
-                            <span class="input-group-text bg-dark text-secondary border-secondary" style="width: 70px;">成交额</span>
+                            <span class="input-group-text bg-dark text-secondary border-secondary" style="width: 70px;" id="buy-label">数量</span>
-                            <input type="number" id="buy-total" class="form-control bg-transparent text-white border-secondary" placeholder="0.00" oninput="updateSlider('buy')">
+                            <input type="number" id="buy-amount" class="form-control bg-transparent text-white border-secondary" placeholder="0.00" oninput="updateSlider('buy')">
-                            <span class="input-group-text bg-dark text-secondary border-secondary">USDT</span>
+                            <span class="input-group-text bg-dark text-secondary border-secondary" id="buy-unit">{{ base_symbol }}</span>
                         </div>
 
                         <div class="mb-4 px-1">
@@ -103,7 +103,7 @@
                             <span class="text-secondary">可用余额</span>
                             <span class="text-white">{{ account.balance|default:"0.00" }} USDT</span>
                         </div>
-                        <button class="btn btn-success w-100 fw-bold py-2 shadow" onclick="submitOrder('BUY')">买入 <span class="base-asset">{{ symbol|slice:":-4" }}</span></button>
+                        <button class="btn btn-success w-100 fw-bold py-2 shadow" onclick="submitOrder('BUY')">买入 <span class="base-asset">{{ base_symbol }}</span></button>
                     </div>
 
                     <!-- Sell -->
@@ -124,7 +124,7 @@
                         <div class="input-group input-group-sm mb-3">
                             <span class="input-group-text bg-dark text-secondary border-secondary" style="width: 70px;">数量</span>
                             <input type="number" id="sell-amount" class="form-control bg-transparent text-white border-secondary" placeholder="0.00" oninput="updateSlider('sell')">
-                            <span class="input-group-text bg-dark text-secondary border-secondary">{{ symbol|slice:":-4" }}</span>
+                            <span class="input-group-text bg-dark text-secondary border-secondary">{{ base_symbol }}</span>
                         </div>
 
                         <div class="mb-4 px-1">
@@ -135,10 +135,10 @@
                         </div>
 
                         <div class="d-flex justify-content-between x-small mb-3">
-                            <span class="text-secondary">可用 <span class="base-asset">{{ symbol|slice:":-4" }}</span></span>
+                            <span class="text-secondary">可用 <span class="base-asset">{{ base_symbol }}</span></span>
-                            <span class="text-white" id="sell-available">0.00</span>
+                            <span class="text-white" id="sell-available-display">{{ base_asset_balance|default:"0.00" }} {{ base_symbol }}</span>
                         </div>
-                        <button class="btn btn-danger w-100 fw-bold py-2 shadow" onclick="submitOrder('SELL')">卖出 <span class="base-asset">{{ symbol|slice:":-4" }}</span></button>
+                        <button class="btn btn-danger w-100 fw-bold py-2 shadow" onclick="submitOrder('SELL')">卖出 <span class="base-asset">{{ base_symbol }}</span></button>
                     </div>
                 </div>
                 {% else %}
@@ -147,9 +147,9 @@
                     <div class="col-12 mb-2 d-flex gap-3 align-items-center">
                         <div class="btn-group" role="group">
                             <input type="radio" class="btn-check" name="c-mode" id="c-limit" checked onchange="toggleMode('contract', 'limit')">
-                            <label class="btn btn-outline-warning btn-sm px-4" for="c-limit">限价</label>
+                            <label class="btn btn-outline-warning btn-sm px-4" for="c-limit">限价委托</label>
                             <input type="radio" class="btn-check" name="c-mode" id="c-market" onchange="toggleMode('contract', 'market')">
-                            <label class="btn btn-outline-warning btn-sm px-4" for="c-market">市价</label>
+                            <label class="btn btn-outline-warning btn-sm px-4" for="c-market">市价委托</label>
                         </div>
                         <div class="dropdown">
                             <button class="btn btn-dark btn-sm border-secondary dropdown-toggle" type="button" data-bs-toggle="dropdown" id="lev-btn">杠杆: 20x</button>
@@ -169,32 +169,96 @@
                         </div>
                         <div class="input-group input-group-sm mb-3">
                             <span class="input-group-text bg-dark text-secondary border-secondary" style="width: 70px;">手数</span>
-                            <input type="number" id="c-amount" class="form-control bg-transparent text-white border-secondary" placeholder="0">
+                            <input type="number" id="c-amount" class="form-control bg-transparent text-white border-secondary" placeholder="0" oninput="updateSlider('contract')">
                             <span class="input-group-text bg-dark text-secondary border-secondary">张</span>
                         </div>
-                        <div class="mb-3">
+                        <div class="mb-4 px-1">
                             <input type="range" class="form-range custom-range" id="c-slider" min="0" max="100" step="1" value="0" oninput="applySlider('contract')">
+                            <div class="d-flex justify-content-between x-small text-secondary mt-1">
+                                <span>0%</span><span>25%</span><span>50%</span><span>75%</span><span>100%</span>
+                            </div>
                         </div>
                         <div class="d-flex justify-content-between x-small mb-3 text-secondary">
-                            <span>保证金: <span class="text-white" id="c-margin">0.00</span> USDT</span>
+                            <span>所需保证金: <span class="text-white" id="c-margin-display">0.00</span> USDT</span>
                             <span>可用: <span class="text-white">{{ account.balance|default:"0.00" }} USDT</span></span>
                         </div>
                         <div class="row g-2">
-                            <div class="col-6"><button class="btn btn-success w-100 fw-bold" onclick="submitOrder('BUY')">买入 (做多)</button></div>
+                            <div class="col-6"><button class="btn btn-success w-100 fw-bold shadow" onclick="submitOrder('BUY')">买入 (做多)</button></div>
-                            <div class="col-6"><button class="btn btn-danger w-100 fw-bold" onclick="submitOrder('SELL')">卖出 (做空)</button></div>
+                            <div class="col-6"><button class="btn btn-danger w-100 fw-bold shadow" onclick="submitOrder('SELL')">卖出 (做空)</button></div>
                         </div>
                     </div>
                     <div class="col-md-6">
                         <div class="p-3 bg-dark rounded border border-secondary" style="font-size: 12px;">
-                            <div class="d-flex justify-content-between mb-2"><span>合约面值</span><span class="text-white">100 USDT</span></div>
+                            <div class="d-flex justify-content-between mb-2"><span>合约面值</span><span class="text-white">100 USDT / 张</span></div>
                             <div class="d-flex justify-content-between mb-2"><span>当前杠杆</span><span class="text-warning" id="lev-val">20x</span></div>
                             <div class="d-flex justify-content-between mb-2"><span>预计手续费</span><span class="text-white">0.05%</span></div>
-                            <div class="d-flex justify-content-between"><span>维持保证金</span><span class="text-white">0.4%</span></div>
+                            <div class="d-flex justify-content-between"><span>维持保证金率</span><span class="text-white">0.4%</span></div>
                         </div>
                     </div>
                 </div>
                 {% endif %}
             </div>
+
+            <!-- Positions / Orders Tabs -->
+            <div class="glass-card p-3" style="border-radius: 4px; border: 1px solid #2b3139; background: #161a1e;">
+                <ul class="nav nav-tabs border-0 mb-3" id="tradeTabs" role="tablist">
+                    <li class="nav-item">
+                        <button class="nav-link active bg-transparent text-white border-0 fw-bold border-bottom border-warning border-3" id="positions-tab" data-bs-toggle="tab" data-bs-target="#positions" type="button">当前持仓/订单</button>
+                    </li>
+                </ul>
+                <div class="tab-content">
+                    <div class="tab-pane fade show active" id="positions">
+                        <div class="table-responsive">
+                            <table class="table table-dark table-sm align-middle mb-0" style="font-size: 12px;">
+                                <thead>
+                                    <tr class="text-secondary">
+                                        <th>合约/现货</th>
+                                        <th>方向</th>
+                                        <th>数量/手数</th>
+                                        <th>开仓/委托价</th>
+                                        <th>当前价</th>
+                                        <th>保证金</th>
+                                        <th>盈亏</th>
+                                        <th class="text-end">操作</th>
+                                    </tr>
+                                </thead>
+                                <tbody>
+                                    {% if trade_type == 'CONTRACT' %}
+                                        {% for p in account.positions.all %}
+                                        {% if p.is_active %}
+                                        <tr>
+                                            <td class="fw-bold">{{ p.symbol }} {{ p.leverage }}x</td>
+                                            <td class="{% if p.side == 'LONG' %}text-success{% else %}text-danger{% endif %}">{{ p.get_side_display }}</td>
+                                            <td>{{ p.lots }}</td>
+                                            <td>{{ p.entry_price }}</td>
+                                            <td class="current-p-val" data-symbol="{{ p.symbol }}">--</td>
+                                            <td>{{ p.margin|floatformat:2 }}</td>
+                                            <td class="upl-val" data-entry="{{ p.entry_price }}" data-side="{{ p.side }}" data-lots="{{ p.lots }}">--</td>
+                                            <td class="text-end"><button class="btn btn-outline-danger btn-sm py-0" onclick="closePos({{ p.id }})">平仓</button></td>
+                                        </tr>
+                                        {% endif %}
+                                        {% endfor %}
+                                    {% endif %}
+                                    {% for o in account.orders.all %}
+                                    {% if o.status == 'PENDING' %}
+                                    <tr>
+                                        <td>{{ o.symbol }} ({{ o.get_trade_type_display }})</td>
+                                        <td class="{% if o.side == 'BUY' %}text-success{% else %}text-danger{% endif %}">{{ o.get_side_display }}</td>
+                                        <td>{{ o.amount }}</td>
+                                        <td>{{ o.price|default:"市价" }}</td>
+                                        <td class="current-p-val" data-symbol="{{ o.symbol }}">--</td>
+                                        <td>--</td>
+                                        <td>等待成交</td>
+                                        <td class="text-end"><button class="btn btn-outline-secondary btn-sm py-0">撤单</button></td>
+                                    </tr>
+                                    {% endif %}
+                                    {% endfor %}
+                                </tbody>
+                            </table>
+                        </div>
+                    </div>
+                </div>
+            </div>
         </div>
 
         <!-- Right: Order Book -->
@@ -202,7 +266,7 @@
             <div class="glass-card h-100 p-2" style="border-radius: 4px; border: 1px solid #2b3139; background: #161a1e;">
                 <div class="d-flex justify-content-between text-secondary x-small mb-2 px-2">
                     <span>价格(USDT)</span>
-                    <span>数量({{ symbol|slice:":-4" }})</span>
+                    <span>数量({{ base_symbol }})</span>
                 </div>
                 <div id="asks" class="mb-2"></div>
                 <div class="py-2 text-center border-top border-bottom border-secondary my-2">
@@ -216,7 +280,7 @@
 
 <style>
     .x-small { font-size: 11px; }
-    .coin-icon-small { width: 18px; height: 18px; margin-right: 6px; }
+    .coin-icon-small { width: 18px; height: 18px; margin-right: 8px; vertical-align: middle; border-radius: 50%; }
     .order-book-row { display: flex; justify-content: space-between; font-size: 11px; padding: 2px 4px; position: relative; }
     .order-book-row span { position: relative; z-index: 1; }
     .ask-bg { position: absolute; right: 0; top: 0; bottom: 0; background: rgba(246, 70, 93, 0.15); transition: width 0.3s; }
@@ -225,6 +289,7 @@
     .custom-range-danger::-webkit-slider-thumb { background: #f6465d; cursor: pointer; }
     .coin-list-container::-webkit-scrollbar { width: 4px; }
     .coin-list-container::-webkit-scrollbar-thumb { background: #2b3139; border-radius: 2px; }
+    .nav-tabs .nav-link:hover { color: #fcd535 !important; }
 </style>
 {% endblock %}
 
@@ -234,6 +299,9 @@
     const symbol = '{{ symbol }}';
     const tradeType = '{{ trade_type }}';
     const balance = parseFloat("{{ account.balance|default:0 }}");
+    const baseAsset = '{{ base_symbol }}';
+    const assetBalance = parseFloat("{{ base_asset_balance|default:0 }}");
+    
     let currentPrice = 0;
     let leverage = 20;
     let allCoins = [];
@@ -250,7 +318,7 @@
         try {
             const r = await fetch('https://api.binance.com/api/v3/ticker/24hr');
             const data = await r.json();
-            allCoins = data.filter(c => c.symbol.endsWith('USDT')).slice(0, 50);
+            allCoins = data.filter(c => c.symbol.endsWith('USDT')).slice(0, 100);
             renderCoins();
         } catch(e) {}
     }
@@ -264,14 +332,15 @@
             if (filter && !c.symbol.toLowerCase().includes(filter.toLowerCase())) return;
             const base = c.symbol.replace('USDT', '');
             const chg = parseFloat(c.priceChangePercent);
+            const iconUrl = `https://static.okx.com/cdn/oksupport/asset/currency/icon/${base.toLowerCase()}.png`;
             const row = `
                 <tr style="cursor: pointer;" onclick="location.href='?symbol=${c.symbol}'">
-                    <td>${base}</td>
+                    <td><img src="${iconUrl}" class="coin-icon-small" onerror="this.src='https://static.okx.com/cdn/oksupport/asset/currency/icon/generic.png'">${base}</td>
-                    <td class="text-end fw-bold">${parseFloat(c.lastPrice).toFixed(2)}</td>
+                    <td class="text-end fw-bold">${parseFloat(c.lastPrice).toLocaleString()}</td>
                     <td class="text-end ${chg>=0?'text-success':'text-danger'}">${chg>=0?'+':''}${chg.toFixed(2)}%</td>
                 </tr>`;
             list.innerHTML += row;
-            mobileList.innerHTML += `<li><a class="dropdown-item d-flex justify-content-between" href="?symbol=${c.symbol}"><span>${base}</span><span class="${chg>=0?'text-success':'text-danger'}">${parseFloat(c.lastPrice).toFixed(2)}</span></a></li>`;
+            mobileList.innerHTML += `<li><a class="dropdown-item d-flex justify-content-between" href="?symbol=${c.symbol}"><span><img src="${iconUrl}" class="coin-icon-small" onerror="this.src='https://static.okx.com/cdn/oksupport/asset/currency/icon/generic.png'">${base}</span><span class="${chg>=0?'text-success':'text-danger'}">${parseFloat(c.lastPrice).toLocaleString()}</span></a></li>`;
         });
     }
 
@@ -280,32 +349,90 @@
     }
 
     function toggleMode(side, mode) {
-        const pInput = document.getElementById(side === 'contract' ? 'c-price' : side + '-price');
+        if (side === 'buy') {
-        if (mode === 'market') {
+            const pInput = document.getElementById('buy-price');
-            pInput.value = '市价价格';
+            const label = document.getElementById('buy-label');
-            pInput.disabled = true;
+            const unit = document.getElementById('buy-unit');
-            pInput.style.color = '#f0b90b';
+            if (mode === 'market') {
-        } else {
+                pInput.value = '市价价格';
-            pInput.value = currentPrice || '';
+                pInput.disabled = true;
-            pInput.disabled = false;
+                pInput.style.color = '#f0b90b';
-            pInput.style.color = 'white';
+                label.textContent = '成交额';
+                unit.textContent = 'USDT';
+            } else {
+                pInput.value = currentPrice || '';
+                pInput.disabled = false;
+                pInput.style.color = 'white';
+                label.textContent = '数量';
+                unit.textContent = baseAsset;
+            }
+        } else if (side === 'sell') {
+            const pInput = document.getElementById('sell-price');
+            if (mode === 'market') {
+                pInput.value = '市价价格';
+                pInput.disabled = true;
+                pInput.style.color = '#f0b90b';
+            } else {
+                pInput.value = currentPrice || '';
+                pInput.disabled = false;
+                pInput.style.color = 'white';
+            }
+        } else if (side === 'contract') {
+            const pInput = document.getElementById('c-price');
+            if (mode === 'market') {
+                pInput.value = '市价价格';
+                pInput.disabled = true;
+                pInput.style.color = '#f0b90b';
+            } else {
+                pInput.value = currentPrice || '';
+                pInput.disabled = false;
+                pInput.style.color = 'white';
+            }
         }
     }
 
     function applySlider(side) {
         const val = document.getElementById(side + '-slider').value;
         if (side === 'buy') {
-            document.getElementById('buy-total').value = (balance * (val / 100)).toFixed(2);
+            const mode = document.getElementById('buy-limit').checked ? 'limit' : 'market';
+            if (mode === 'market') {
+                document.getElementById('buy-amount').value = (balance * (val / 100)).toFixed(2);
+            } else {
+                const price = parseFloat(document.getElementById('buy-price').value);
+                if (price > 0) document.getElementById('buy-amount').value = (balance * (val / 100) / price).toFixed(4);
+            }
         } else if (side === 'sell') {
-            // Simulated 1.5 BTC for testing
+            document.getElementById('sell-amount').value = (assetBalance * (val / 100)).toFixed(4);
-            document.getElementById('sell-amount').value = (1.5 * (val / 100)).toFixed(4);
         } else if (side === 'contract') {
             const margin = (balance * (val / 100));
-            document.getElementById('c-margin').textContent = margin.toFixed(2);
+            document.getElementById('c-margin-display').textContent = margin.toFixed(2);
             document.getElementById('c-amount').value = Math.floor((margin * leverage) / 100);
         }
     }
 
+    function updateSlider(side) {
+        if (side === 'buy') {
+            const mode = document.getElementById('buy-limit').checked ? 'limit' : 'market';
+            const amount = parseFloat(document.getElementById('buy-amount').value) || 0;
+            let percent = 0;
+            if (mode === 'market') {
+                percent = (amount / balance) * 100;
+            } else {
+                const price = parseFloat(document.getElementById('buy-price').value) || 0;
+                percent = (amount * price / balance) * 100;
+            }
+            document.getElementById('buy-slider').value = Math.min(100, percent);
+        } else if (side === 'sell') {
+            const amount = parseFloat(document.getElementById('sell-amount').value) || 0;
+            document.getElementById('sell-slider').value = Math.min(100, (amount / assetBalance) * 100);
+        } else if (side === 'contract') {
+            const lots = parseFloat(document.getElementById('c-amount').value) || 0;
+            const margin = (100 * lots) / leverage;
+            document.getElementById('c-margin-display').textContent = margin.toFixed(2);
+            document.getElementById('c-slider').value = Math.min(100, (margin / balance) * 100);
+        }
+    }
+
     function setLev(l) {
         leverage = l;
         document.getElementById('lev-btn').textContent = '杠杆: ' + l + 'x';
@@ -328,7 +455,6 @@
             document.getElementById('header-change').className = 'fw-bold ' + (chg>=0?'text-success':'text-danger');
             document.getElementById('header-volume').textContent = (parseFloat(d.quoteVolume)/1000000).toFixed(2) + 'M';
 
-            // Order Book
             const askD = document.getElementById('asks'); const bidD = document.getElementById('bids');
             askD.innerHTML = ''; bidD.innerHTML = '';
             for (let i = 0; i < 10; i++) {
@@ -336,18 +462,72 @@
                 bidD.innerHTML += `<div class="order-book-row"><span class="text-success">${(currentPrice-(i+1)*0.1).toFixed(2)}</span><span>${(Math.random()*1.2).toFixed(4)}</span><div class="bid-bg" style="width:${Math.random()*70}%"></div></div>`;
             }
 
-            // Sync limit inputs if empty
             if (tradeType === 'SPOT') {
                 if (!document.getElementById('buy-price').value && !document.getElementById('buy-price').disabled) document.getElementById('buy-price').value = currentPrice;
                 if (!document.getElementById('sell-price').value && !document.getElementById('sell-price').disabled) document.getElementById('sell-price').value = currentPrice;
             } else {
                 if (!document.getElementById('c-price').value && !document.getElementById('c-price').disabled) document.getElementById('c-price').value = currentPrice;
             }
+
+            document.querySelectorAll('.current-p-val').forEach(el => { el.textContent = currentPrice.toLocaleString(); });
+            document.querySelectorAll('.upl-val').forEach(el => {
+                const entry = parseFloat(el.getAttribute('data-entry'));
+                const side = el.getAttribute('data-side');
+                const lots = parseFloat(el.getAttribute('data-lots'));
+                let upl = 0;
+                if (side === 'LONG') upl = (currentPrice - entry) / entry * (lots * 100);
+                else upl = (entry - currentPrice) / entry * (lots * 100);
+                el.textContent = (upl >= 0 ? '+' : '') + upl.toFixed(2) + ' USDT';
+                el.className = 'upl-val ' + (upl >= 0 ? 'text-success' : 'text-danger');
+            });
+
         } catch(e) {}
     }
 
-    function submitOrder(side) {
+    async function submitOrder(side) {
-        alert('订单已提交，正在匹配中...');
+        const mode = tradeType === 'SPOT' 
+            ? (document.getElementById(side.toLowerCase() + '-limit').checked ? 'LIMIT' : 'MARKET')
+            : (document.getElementById('c-limit').checked ? 'LIMIT' : 'MARKET');
+        
+        let price = 0;
+        let amount = 0;
+
+        if (tradeType === 'SPOT') {
+            price = document.getElementById(side.toLowerCase() + '-price').value;
+            amount = document.getElementById(side.toLowerCase() + '-amount').value;
+        } else {
+            price = document.getElementById('c-price').value;
+            amount = document.getElementById('c-amount').value;
+        }
+
+        try {
+            const r = await fetch('{% url "core:submit_order" %}', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json', 'X-CSRFToken': '{{ csrf_token }}' },
+                body: JSON.stringify({
+                    symbol: symbol, side: side, trade_type: tradeType, order_type: mode,
+                    price: price === '市价价格' ? null : price, amount: amount, leverage: leverage
+                })
+            });
+            const res = await r.json();
+            if (res.status === 'success') {
+                alert('下单成功！');
+                location.reload();
+            } else {
+                alert('下单失败: ' + res.message);
+            }
+        } catch(e) { alert('提交出错'); }
+    }
+
+    async function closePos(id) {
+        if (confirm('确定要平仓吗？')) {
+            const r = await fetch(`/api/close_position/${id}/`, { 
+                method: 'POST',
+                headers: { 'X-CSRFToken': '{{ csrf_token }}' }
+            });
+            const res = await r.json();
+            if (res.status === 'success') location.reload();
+        }
     }
 
     initTV(); getMarkets(); tick();

core/urls.py

@@ -1,8 +1,11 @@
 from django.urls import path
 from . import views
 
+app_name = 'core'
+
 urlpatterns = [
     path('', views.index, name='index'),
+    path('trade/<str:trade_type>/', views.trade, name='trade'),
     path('spot/', views.trade, {'trade_type': 'spot'}, name='spot_trade'),
     path('contract/', views.trade, {'trade_type': 'contract'}, name='contract_trade'),
     path('markets/', views.market_center, name='market_center'),
@@ -14,6 +17,10 @@ urlpatterns = [
     path('register/', views.register_view, name='register'),
     path('api/market_data/', views.market_data, name='market_data'),
     path('api/submit_order/', views.submit_order, name='submit_order'),
+    path('api/close_position/<int:position_id>/', views.close_position, name='close_position'),
+    
+    # Dynamic Article/Placeholder Route
+    path('article/<str:title>/', views.placeholder_view, name='placeholder'),
     
     # Footer links
     path('help/', views.placeholder_view, {'title': '帮助中心'}, name='help_center'),

core/views.py

@@ -1,32 +1,49 @@
-from django.shortcuts import render, redirect
+from django.shortcuts import render, redirect, get_object_or_404
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth import login, authenticate
 from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
 from django.http import JsonResponse
 from django.contrib.auth.models import User
 from django.contrib import messages
-from .models import Account, Order, Transaction, Cryptocurrency, SiteSettings
+from .models import Account, Order, Transaction, Cryptocurrency, SiteSettings, Asset, Position
 import random
 import decimal
 import json
 from django.views.decorators.csrf import csrf_exempt
+from django.db import transaction
 
 def index(request):
     return render(request, 'core/index.html')
 
 def trade(request, trade_type='spot'):
     symbol = request.GET.get('symbol', 'BTCUSDT')
-    # Fetch all active cryptocurrencies for the sidebar
+    base_symbol = symbol.replace('USDT', '')
     cryptos = Cryptocurrency.objects.filter(is_active=True)
+    account = None
+    assets = {}
+    base_asset_balance = decimal.Decimal('0')
+    
+    if request.user.is_authenticated:
+        account, _ = Account.objects.get_or_create(user=request.user)
+        for asset in account.assets.all():
+            assets[asset.currency] = asset
+            if asset.currency == base_symbol:
+                base_asset_balance = asset.balance
+            
     context = {
         'symbol': symbol,
+        'base_symbol': base_symbol,
         'trade_type': trade_type.upper(),
         'cryptos': cryptos,
+        'account': account,
+        'assets': assets,
+        'base_asset_balance': base_asset_balance,
     }
     return render(request, 'core/trade.html', context)
 
 def market_center(request):
-    return render(request, 'core/index.html', {'market_only': True})
+    cryptos = Cryptocurrency.objects.filter(is_active=True)
+    return render(request, 'core/market_center.html', {'cryptos': cryptos})
 
 def placeholder_view(request, title):
     settings = SiteSettings.objects.first()
@@ -61,10 +78,12 @@ def profile(request):
     account, created = Account.objects.get_or_create(user=request.user)
     recent_transactions = Transaction.objects.filter(account=account).order_by('-timestamp')[:10]
     recent_orders = Order.objects.filter(account=account).order_by('-created_at')[:10]
+    positions = Position.objects.filter(account=account, is_active=True)
     context = {
         'account': account,
         'recent_transactions': recent_transactions,
         'recent_orders': recent_orders,
+        'positions': positions,
     }
     return render(request, 'core/profile.html', context)
 
@@ -82,7 +101,7 @@ def deposit(request):
                 status='pending',
                 tx_hash=tx_id
             )
-            return redirect('profile')
+            return redirect('core:profile')
     return render(request, 'core/deposit.html')
 
 @login_required
@@ -103,7 +122,7 @@ def withdraw(request):
                     status='completed',
                     tx_hash=f"wd_{random.randint(1000, 9999)}"
                 )
-                return redirect('profile')
+                return redirect('core:profile')
     return render(request, 'core/withdraw.html', {'account': account})
 
 @login_required
@@ -112,21 +131,9 @@ def verify(request):
     if request.method == 'POST':
         account.kyc_status = 'pending'
         account.save()
-        return redirect('profile')
+        return redirect('core:profile')
     return render(request, 'core/verify.html', {'account': account})
 
-def generate_captcha():
-    a = random.randint(1, 10)
-    b = random.randint(1, 10)
-    op = random.choice(['+', '-', '*'])
-    if op == '+':
-        res = a + b
-    elif op == '-':
-        res = a - b
-    else:
-        res = a * b
-    return f"{a} {op} {b} = ?", res
-
 def register_view(request):
     if request.method == 'POST':
         username = request.POST.get('username')
@@ -145,9 +152,8 @@ def register_view(request):
             user = User.objects.create_user(username=username, password=password)
             Account.objects.get_or_create(user=user)
             login(request, user)
-            return redirect('index')
+            return redirect('core:index')
             
-    # Generate new captcha
     captcha_text, captcha_result = generate_captcha()
     request.session['captcha_result'] = captcha_result
     
@@ -155,13 +161,22 @@ def register_view(request):
         'captcha_text': captcha_text
     })
 
+def generate_captcha():
+    a = random.randint(1, 10)
+    b = random.randint(1, 10)
+    op = random.choice(['+', '-', '*'])
+    if op == '+': res = a + b
+    elif op == '-': res = a - b
+    else: res = a * b
+    return f"{a} {op} {b} = ?", res
+
 def login_view(request):
     if request.method == 'POST':
         form = AuthenticationForm(data=request.POST)
         if form.is_valid():
             user = form.get_user()
             login(request, user)
-            return redirect('index')
+            return redirect('core:index')
     else:
         form = AuthenticationForm()
     return render(request, 'core/login.html', {'form': form})
@@ -169,76 +184,181 @@ def login_view(request):
 @login_required
 @csrf_exempt
 def submit_order(request):
-    if request.method == 'POST':
+    if request.method != 'POST':
-        try:
+        return JsonResponse({'status': 'error', 'message': 'Invalid request'})
-            data = json.loads(request.body)
-            symbol = data.get('symbol', 'BTCUSDT')
-            side = data.get('side')
-            amount = decimal.Decimal(data.get('amount', 0))
-            trade_type = data.get('trade_type', 'SPOT')
-            order_type = data.get('order_type', 'MARKET')
-            price = data.get('price')
         
-            account = request.user.account
+    try:
+        data = json.loads(request.body)
+        symbol = data.get('symbol', 'BTCUSDT')
+        side = data.get('side') # BUY or SELL
+        trade_type = data.get('trade_type', 'SPOT')
+        order_type = data.get('order_type', 'MARKET')
+        price_val = data.get('price')
+        amount_val = data.get('amount', 0)
+        leverage = int(data.get('leverage', 20))
         
-            # Fetch current price from DB or simulated
+        account = request.user.account
-            crypto = Cryptocurrency.objects.filter(symbol=symbol.replace('USDT', '')).first()
+        base_symbol = symbol.replace('USDT', '')
-            current_price = crypto.current_price if crypto else decimal.Decimal('48000')
         
-            # If market order, use current price. If limit, use provided price.
+        # Get current market price for validations and market orders
-            exec_price = decimal.Decimal(str(price)) if order_type == 'LIMIT' else current_price
+        crypto = Cryptocurrency.objects.filter(symbol=base_symbol).first()
+        current_price = crypto.current_price if (crypto and crypto.current_price > 0) else decimal.Decimal('48000')
         
-            if side == 'BUY':
+        with transaction.atomic():
-                cost = amount * exec_price
+            if trade_type == 'SPOT':
-                if account.balance >= cost:
+                if order_type == 'MARKET':
-                    account.balance -= cost
+                    # Spot Market Order: Execute Immediately
+                    if side == 'BUY':
+                        # BUY: amount_val is USDT
+                        total_usdt = decimal.Decimal(str(amount_val))
+                        if account.balance < total_usdt:
+                            return JsonResponse({'status': 'error', 'message': '余额不足'})
+                        
+                        exec_amount = total_usdt / current_price
+                        account.balance -= total_usdt
+                        account.save()
+                        
+                        asset, _ = Asset.objects.get_or_create(account=account, currency=base_symbol)
+                        asset.balance += exec_amount
+                        asset.save()
+                        
+                        Order.objects.create(
+                            account=account, symbol=symbol, side=side, order_type=order_type,
+                            trade_type=trade_type, amount=exec_amount, total_usdt=total_usdt, status='FILLED'
+                        )
+                    else: # SELL
+                        # SELL: amount_val is coin quantity
+                        exec_amount = decimal.Decimal(str(amount_val))
+                        asset, _ = Asset.objects.get_or_create(account=account, currency=base_symbol)
+                        if asset.balance < exec_amount:
+                            return JsonResponse({'status': 'error', 'message': f'{base_symbol} 余额不足'})
+                        
+                        total_usdt = exec_amount * current_price
+                        asset.balance -= exec_amount
+                        asset.save()
+                        
+                        account.balance += total_usdt
+                        account.save()
+                        
+                        Order.objects.create(
+                            account=account, symbol=symbol, side=side, order_type=order_type,
+                            trade_type=trade_type, amount=exec_amount, total_usdt=total_usdt, status='FILLED'
+                        )
+                else: # LIMIT
+                    # Spot Limit Order: Freeze Assets, Pend
+                    price = decimal.Decimal(str(price_val))
+                    amount = decimal.Decimal(str(amount_val))
+                    if side == 'BUY':
+                        total_usdt = price * amount
+                        if account.balance < total_usdt:
+                            return JsonResponse({'status': 'error', 'message': '余额不足'})
+                        
+                        account.balance -= total_usdt
+                        account.frozen_balance += total_usdt
+                        account.save()
+                        
+                        Order.objects.create(
+                            account=account, symbol=symbol, side=side, order_type=order_type,
+                            trade_type=trade_type, amount=amount, price=price, total_usdt=total_usdt, status='PENDING'
+                        )
+                    else: # SELL
+                        asset, _ = Asset.objects.get_or_create(account=account, currency=base_symbol)
+                        if asset.balance < amount:
+                            return JsonResponse({'status': 'error', 'message': f'{base_symbol} 余额不足'})
+                        
+                        asset.balance -= amount
+                        asset.frozen += amount
+                        asset.save()
+                        
+                        Order.objects.create(
+                            account=account, symbol=symbol, side=side, order_type=order_type,
+                            trade_type=trade_type, amount=amount, price=price, status='PENDING'
+                        )
+            
+            else: # CONTRACT
+                # Contract: Initial Margin = face_value(100) * lots / leverage
+                lots = decimal.Decimal(str(amount_val))
+                face_value = decimal.Decimal('100')
+                margin_required = (face_value * lots) / decimal.Decimal(str(leverage))
+                
+                if account.balance < margin_required:
+                    return JsonResponse({'status': 'error', 'message': '保证金不足'})
+                
+                if order_type == 'MARKET':
+                    # Contract Market Order: Immediate Open Position
+                    account.balance -= margin_required
                     account.save()
-                    Order.objects.create(
-                        account=account,
-                        symbol=symbol,
-                        side=side,
-                        amount=amount,
-                        trade_type=trade_type,
-                        order_type=order_type,
-                        status='FILLED',
-                        entry_price=exec_price,
-                        price=exec_price if order_type == 'LIMIT' else None
-                    )
-                    return JsonResponse({'status': 'success'})
-                else:
-                    return JsonResponse({'status': 'error', 'message': '余额不足'})
-            else:
-                # SELL
-                revenue = amount * exec_price
-                Order.objects.create(
-                    account=account,
-                    symbol=symbol,
-                    side=side,
-                    amount=amount,
-                    trade_type=trade_type,
-                    order_type=order_type,
-                    status='FILLED',
-                    entry_price=exec_price,
-                    price=exec_price if order_type == 'LIMIT' else None
-                )
-                account.balance += revenue
-                account.save()
-                return JsonResponse({'status': 'success'})
                     
-        except Exception as e:
+                    Position.objects.create(
-            return JsonResponse({'status': 'error', 'message': str(e)})
+                        account=account, symbol=symbol, side='LONG' if side == 'BUY' else 'SHORT',
-    return JsonResponse({'status': 'error', 'message': 'Invalid request'})
+                        leverage=leverage, entry_price=current_price, lots=lots, margin=margin_required
+                    )
+                    
+                    Order.objects.create(
+                        account=account, symbol=symbol, side=side, order_type=order_type,
+                        trade_type=trade_type, amount=lots, leverage=leverage, status='FILLED'
+                    )
+                else: # LIMIT
+                    # Contract Limit Order: Freeze Margin, Pend
+                    price = decimal.Decimal(str(price_val))
+                    account.balance -= margin_required
+                    account.frozen_balance += margin_required
+                    account.save()
+                    
+                    Order.objects.create(
+                        account=account, symbol=symbol, side=side, order_type=order_type,
+                        trade_type=trade_type, amount=lots, price=price, leverage=leverage, status='PENDING'
+                    )
+            
+        return JsonResponse({'status': 'success'})
+            
+    except Exception as e:
+        return JsonResponse({'status': 'error', 'message': str(e)})
+
+@login_required
+@csrf_exempt
+def close_position(request, position_id):
+    if request.method != 'POST':
+        return JsonResponse({'status': 'error', 'message': 'Invalid request'})
+        
+    position = get_object_or_404(Position, id=position_id, account=request.user.account, is_active=True)
+    
+    base_symbol = position.symbol.replace('USDT', '')
+    crypto = Cryptocurrency.objects.filter(symbol=base_symbol).first()
+    current_price = crypto.current_price if (crypto and crypto.current_price > 0) else decimal.Decimal('48000')
+    
+    face_value = decimal.Decimal('100')
+    # Calculate Unrealized P&L
+    if position.side == 'LONG':
+        upl = (current_price - position.entry_price) / position.entry_price * (position.lots * face_value)
+    else:
+        upl = (position.entry_price - current_price) / position.entry_price * (position.lots * face_value)
+    
+    with transaction.atomic():
+        account = request.user.account
+        # Settlement: Margin + P&L - Fee (0.05%)
+        fee = (position.lots * face_value) * decimal.Decimal('0.0005')
+        account.balance += (position.margin + upl - fee)
+        account.save()
+        
+        position.is_active = False
+        position.save()
+        
+        # Log closing order
+        Order.objects.create(
+            account=account, symbol=position.symbol, side='SELL' if position.side == 'LONG' else 'BUY',
+            order_type='MARKET', trade_type='CONTRACT', amount=position.lots, status='FILLED'
+        )
+        
+    return JsonResponse({'status': 'success'})
 
 def market_data(request):
-    # This might be used by some local scripts, though index/trade use Binance API directly
+    cryptos = Cryptocurrency.objects.filter(is_active=True)
-    symbols = ['BTC', 'ETH', 'BNB', 'SOL', 'ADA', 'XRP', 'DOT', 'DOGE']
     data = []
-    for s in symbols:
+    for c in cryptos:
-        price = random.uniform(10, 60000)
-        change = random.uniform(-5, 5)
         data.append({
-            'symbol': s,
+            'symbol': c.symbol,
-            'price': round(price, 4),
+            'price': float(c.current_price),
-            'change': round(change, 2)
+            'change': float(c.change_24h)
         })
     return JsonResponse(data, safe=False)