Stage 6.2: Poinbase perpetual futures (PSC, SPARK) with slippage, funding, insurance fund, ADL, debt and seizure

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/Decentralized/DealerStock.cs

@@ -68,6 +68,15 @@ namespace Decentralized
                 Items.Give(item);
                 Log.Info($"买入测试：卡 #{item.uniqueId} 买前报价 {before}，买下后价值 {item.unitValue}，真实 {CardValue.True(Items.ToUnit(item))}，说法 {(Items.GetClaim(item)?.Encode() ?? "无")}");
             }));
+            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Poinbase +5000 CRC, unlock (test)", () => Log.Guard("永续测试", () =>
+            {
+                var d = Session.Data;
+                d.Poinbase.Add(Assets.CRC, 5000); d.Poinbase.Basis += 5000;
+                if (!Unlock.IsUnlocked) ModHelper.GetNetworkUpgrade(Unlock.Id)?.Unlock();
+                Log.Info($"测试：Poinbase CRC {d.Poinbase.Get(Assets.CRC):0}，解锁 {Unlock.IsUnlocked}");
+            }));
+            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "Perp fund 0 (test)", () => { Session.Data.Perps.InsuranceFund = 0; Log.Info("测试：保险基金清零"); });
+            ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "SPARK x0.3 (test)", () => { var st = Session.Data.Stable; st.Spark *= 0.3; Log.Info($"测试：SPARK 价格 {st.Spark:0.00}"); });
             ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "CRA + PSC (test)", () => { var w = Session.Data.Hot; w.Add(Assets.CRA, 1000); w.Add(Assets.PSC, 20); w.Basis += 1000; Log.Info($"测试：{WalletWindow.NameOf(w)} CRA {w.Get(Assets.CRA):0}"); });
             ModHelper.AddDebugFunction(ModInfo.Id, ModInfo.Name, "CRA spiral warning (test)", () =>
             {

src/Decentralized/ModFiles/Localization/en.csv

@@ -268,7 +268,7 @@ black.kind.Contraband.3,Contraband (high)
 black.kind.Tech,High-tech (markup)
 nightlog.bm.ready,"Black market: {0} arrived; a courier will come by once you open."
 item.web3guide.name,Web3 Handbook
-item.web3guide.desc,"Bank: depositing turns credits into CRC in your Poinbase account; withdrawing turns CRC back into credits and goes through compliance screening, which looks at the Poinbase account's taint. Trading: buys are paid in the quote coin, sells in the traded coin. Mixer: pick a coin, amount and rounds; each round takes a fee and lowers taint, rounds equal days of waiting, and the coins come back to the same address; the more you deposit, the worse the cleaning. Hardware wallets: on-chain coins sit in PLEDGER hardware wallets, each with its own balances and taint; open and connect them on the terminal's Wallets page. The Web3 page's trading, black market and mixer use the connected wallet, and coin-paying customers and mining rewards go into it too. Payments (black market, mixer, Ponero desk, listing fees) start as an invoice on the terminal; type the payee address on the wallet and hold ✓ to sign. The last two characters of an address are a checksum, so a one-character typo is usually caught; once in a while it happens to be valid and the coins go to an address nobody uses. DEX swaps also need a signature on the wallet. Poinbase is a custodial account and can withdraw straight to the connected wallet; depositing from a wallet means sending to Poinbase's deposit address, which takes only CRC and PSC. More hardware wallets are sold by Dr. Jackson; drag one onto the trading terminal to add it, up to 5. The black market has cheaper ones. A wallet you no longer want can be destroyed on the Wallets page once its coins are moved out. Transfers pay a fee: slow, normal or fast, and gas prices rise and fall over roughly a week; when the network is congested fees rise and slow transactions may be dropped from the mempool. Check the full address before sending. Staking: CRA staked in the Revolution pool earns a daily rate that compounds into the stake; withdrawing means requesting first and waiting four days, with no interest while waiting and no way to take it early. The pool pays from a subsidy fund; when it runs low the rate is cut and word of big holders pulling out may spread. Treat that as a warning: once it collapses CRA is worthless within three days and four days of unlocking is too slow. The balance token SPARK can be minted and burned against CRA at the going price (with a fee); its price swings hard and crashes with the collapse. Staking, minting and burning are contract calls and need a signature on the wallet. Black market: coin only, no CRC, 30% above normal channels, with extra markup on high-tech goods and GPUs; the coin you pay leaves its share of taint with the seller and the goods carry no stolen tag; GPUs may be fake, inspect them yourself. Orders are cheaper than spot but take days and may be intercepted; merchants sell by type at their own price factor, 5+ items get 5% off and 10+ get 10% off, and a bulk merchant appears at random with the lowest prices but six days of waiting; escrow costs 5%, is released on delivery and refunded if the seller runs; advance release takes another 10% off, but a scammer keeps the money and only sellers with 30+ trades accept; the platform itself can rug, be taken over by enforcement, or a seller can be arrested, after which your orders get traced and crime logged; forum rumors can be warnings. An intercepted parcel sometimes turns into enforcement at your door: signing logs the crime on the spot and seizes the goods, refusing only costs the payment. Selling: on the black market's Sell tab, list contraband, high-tech goods and GPUs from storage at 0.6x to 1.8x the reference price. The higher the multiplier, the slower the sale (below 0.9x about a day, 1.0x about two, 1.8x about fourteen), and the likelier and larger the taint on the payout, which also grows with how much you sold in the last 7 days; at most 10 listings at a time, 5% listing fee, repricing a listing costs 2% and the sale speed follows the new multiplier, 8% commission, payout held 3 days before reaching your wallet; a fake card may be spotted and returned, hurting your rating; if the platform rugs, listed goods and unreleased payouts are gone. Anonymous-coin swap (Web3 trade page, needs black-market standing): Ponero is a privacy coin and swapping in wipes the taint on that value; 6% fee each way with a daily limit; coin swapped out of Ponero has no origin and cash-out screening gets stricter."
+item.web3guide.desc,"Bank: depositing turns credits into CRC in your Poinbase account; withdrawing turns CRC back into credits and goes through compliance screening, which looks at the Poinbase account's taint. Trading: buys are paid in the quote coin, sells in the traded coin. Mixer: pick a coin, amount and rounds; each round takes a fee and lowers taint, rounds equal days of waiting, and the coins come back to the same address; the more you deposit, the worse the cleaning. Hardware wallets: on-chain coins sit in PLEDGER hardware wallets, each with its own balances and taint; open and connect them on the terminal's Wallets page. The Web3 page's trading, black market and mixer use the connected wallet, and coin-paying customers and mining rewards go into it too. Payments (black market, mixer, Ponero desk, listing fees) start as an invoice on the terminal; type the payee address on the wallet and hold ✓ to sign. The last two characters of an address are a checksum, so a one-character typo is usually caught; once in a while it happens to be valid and the coins go to an address nobody uses. DEX swaps also need a signature on the wallet. Perps: the Perps tab on Poinbase uses your account CRC as margin, up to 5× on PSC and 3× on SPARK, one position per product, never long and short at once. Fills are worse than the quote (more so for bigger orders, like the spot pool) and opening and closing both cost a fee. Liquidation is checked only overnight against the day's average price: equity under 10% of notional wipes the margin. There is also a nightly funding payment; when the price is above its 7-day average, longs pay shorts. If a liquidation loses more than the margin, the insurance fund covers the gap; when it runs dry (a SPARK collapse can do that) winning positions are auto-deleveraged and give up half their profit; anything beyond that becomes your debt. Debt grows 2% a day, is repaid first from CRC in the account every night, blocks new positions and cash-outs, and after seven days items in your shop are seized to cover it; whatever is still short is written off and the perp account is banned for 30 days. Poinbase is a custodial account and can withdraw straight to the connected wallet; depositing from a wallet means sending to Poinbase's deposit address, which takes only CRC and PSC. More hardware wallets are sold by Dr. Jackson; drag one onto the trading terminal to add it, up to 5. The black market has cheaper ones. A wallet you no longer want can be destroyed on the Wallets page once its coins are moved out. Transfers pay a fee: slow, normal or fast, and gas prices rise and fall over roughly a week; when the network is congested fees rise and slow transactions may be dropped from the mempool. Check the full address before sending. Staking: CRA staked in the Revolution pool earns a daily rate that compounds into the stake; withdrawing means requesting first and waiting four days, with no interest while waiting and no way to take it early. The pool pays from a subsidy fund; when it runs low the rate is cut and word of big holders pulling out may spread. Treat that as a warning: once it collapses CRA is worthless within three days and four days of unlocking is too slow. The balance token SPARK can be minted and burned against CRA at the going price (with a fee); its price swings hard and crashes with the collapse. Staking, minting and burning are contract calls and need a signature on the wallet. Black market: coin only, no CRC, 30% above normal channels, with extra markup on high-tech goods and GPUs; the coin you pay leaves its share of taint with the seller and the goods carry no stolen tag; GPUs may be fake, inspect them yourself. Orders are cheaper than spot but take days and may be intercepted; merchants sell by type at their own price factor, 5+ items get 5% off and 10+ get 10% off, and a bulk merchant appears at random with the lowest prices but six days of waiting; escrow costs 5%, is released on delivery and refunded if the seller runs; advance release takes another 10% off, but a scammer keeps the money and only sellers with 30+ trades accept; the platform itself can rug, be taken over by enforcement, or a seller can be arrested, after which your orders get traced and crime logged; forum rumors can be warnings. An intercepted parcel sometimes turns into enforcement at your door: signing logs the crime on the spot and seizes the goods, refusing only costs the payment. Selling: on the black market's Sell tab, list contraband, high-tech goods and GPUs from storage at 0.6x to 1.8x the reference price. The higher the multiplier, the slower the sale (below 0.9x about a day, 1.0x about two, 1.8x about fourteen), and the likelier and larger the taint on the payout, which also grows with how much you sold in the last 7 days; at most 10 listings at a time, 5% listing fee, repricing a listing costs 2% and the sale speed follows the new multiplier, 8% commission, payout held 3 days before reaching your wLine truncated
 courier.odd1,...Package is here.
 courier.odd2,"(His hand stays in his pocket.) Sign here."
 courier.sign,Sign
@@ -477,3 +477,47 @@ news.crawarn.desc,Big holders are pulling out and the staking subsidy pool is ru
 news.cralow.title,Revolution cuts staking rate
 news.cralow.desc,The subsidy pool is nearly empty, and the Revolution has cut the CRA staking rate to a fraction.
 stake.avail2,"SPARK {0}"
+poin.sub.spot,Spot
+poin.sub.perp,Perps
+perp.h,Perpetual futures
+perp.acct,"Margin account CRC {0}"
+perp.debt,"Debt {0}; items are seized in {1} days. No new positions or cash-outs until it is cleared."
+perp.banned,"Perp account banned for {0} more days."
+perp.none,No positions.
+perp.col.pos,Position
+perp.col.notional,Notional
+perp.col.price,Entry → price
+perp.col.pnl,PnL
+perp.col.liq,Liq. price
+perp.long,Long
+perp.short,Short
+perp.rate,"{0}  price {1}  funding {2}%/night"
+perp.fund,"Insurance fund {0}"
+perp.open,Open
+perp.margin,Margin (CRC)
+perp.preview,"Notional {0}  fill {1}"
+perp.do.open,Open
+perp.do.add,Add margin
+perp.do.close,Close
+perp.opened,"Opened {0} {1}: margin {2} CRC, {3}×."
+perp.added,"Added {0} CRC of margin."
+perp.closed,"Closed; {0} CRC back in the account (PnL {1})."
+perp.deficit,"Equity fell short by {0}, covered by the insurance fund and debt."
+perp.err.Banned,The perp account is banned.
+perp.err.Debt,You have debt; no new positions.
+perp.err.Leverage,Leverage is above this product's limit.
+perp.err.Size,Above this product's position cap.
+perp.err.Funds,Not enough CRC in the account (the fee counts).
+perp.err.Opposite,You cannot be long and short the same product; close first.
+perp.err.NoPosition,No position.
+perp.err.Margin,Enter a margin amount.
+perp.debt.block,You owe the perps desk; no cash-outs.
+nightlog.perp.liq,"{0} was liquidated; the {1} margin is gone."
+nightlog.perp.adl,"The insurance fund ran dry; {0} was auto-deleveraged and gave up {1} of profit."
+nightlog.perp.interest,"Perp debt accrued interest; you now owe {0}."
+nightlog.perp.seize,"Overdue perp debt: seized items covered {0}."
+nightlog.perp.writeoff," {0} written off; the perp account is banned for {1} days."
+perp.slip.title,Perp debt seizure slip
+perp.preview2,"Fee {0}  liq. {1}"
+nightlog.perp.repaid,"Perp deficit: {0} CRC was taken from the Poinbase account to repay it."
+perp.err.Thin,"Slippage on this order is so large it would be liquidated at once. Reduce the size or leverage."

src/Decentralized/ModFiles/Localization/zh.csv

@@ -267,7 +267,7 @@ black.kind.Contraband.3,违禁品（高）
 black.kind.Tech,高科技物品（加价）
 nightlog.bm.ready,"黑市：{0} 到货，开店后会有快递员上门。"
 item.web3guide.name,Web3 手册
-item.web3guide.desc,"银行：存入把信用点换成 Poinbase 账户里的 CRC；提取把 CRC 换回信用点，要过合规审查，审查看 Poinbase 账户的污点。交易：买入按计价币的数量支付，卖出按所交易币的数量卖出。混币器：选币种、填数量和轮数，每轮扣手续费并降低污点，轮数即等待天数，到期提回同一个地址；存入越多，清洗越差。硬件钱包：链上的币放在 PLEDGER 硬件钱包里，每个钱包的余额和污点各算各的；在终端的钱包页打开、连接。Web3 页的交易、黑市、混币器用已连接的钱包，用币付款的顾客和挖矿收益也进它。付款（黑市、混币器、Ponero 兑换处、上架费）先在终端开账单，再在钱包里手输收款地址、按住 ✓ 签名；地址末尾两位是校验位，输错一位多半会被拦下，偶尔碰巧合法，币就转进了没人用的地址。DEX 兑换也要在钱包上签名。Poinbase 是托管账户，可以直接提到已连接的钱包；从钱包充值要转到 Poinbase 的充值地址，只收 CRC 和 PSC。更多硬件钱包向杰克逊博士购买，拖到交易终端上添加，最多 5 个；黑市上也有更便宜的。不要的钱包可以在钱包页销毁，要先把币转走。转账要付手续费，分慢、普通、快三档，gas 价格大约一周一个起落；网络拥堵时手续费变贵，慢档可能被挤出内存池。转账前核对完整地址。质押：把 CRA 质押进革命军质押池每天有日息，利息并入本金；取出要先申请，等四天才到账，等待期间没有利息，也不能提前拿。质押池靠补贴池付息，补贴池见底会降息，有时还会传出大户撤出的消息，那是预兆：一旦崩盘，三天内 CRA 就一文不值，四天的解锁期来不及。平衡代币 SPARK 可以和 CRA 按价格互相铸销（收手续费），价格波动很大，崩盘时会跟着暴跌。质押、铸销都是合约调用，要在钱包上签名。黑市：只收币，不收 CRC，价格比正常渠道贵 30%，高科技物品和显卡另有加价；付出去的币带着按比例的污点留在卖家那边，货不带赃物标签；显卡不保证真假，自己鉴定。订单比现货便宜，要等几天，路上可能被截获；商家按类型卖货，价格系数各不相同，一次订 5 件以上 95 折、10 件以上 9 折，大宗商家随机出现，价格最低但要等六天；托管多付 5% 托管费，收货后放款，卖家跑路时退款；提前放款再打九折，卖家若是骗子钱就没了，只有成交 30 单以上的卖家接受；平台自己也可能跑路，也可能被执法接管，或者卖家落网，之后你的订单会被追查、记罪证；论坛上的传闻可以当预兆。被截获的包裹有时会变成执法人员上门：签收当场记罪证并查封，拒签只损失货款。出售：在黑市的卖货页把储藏区里的违禁品、高科技物品和显卡上架，标价是参考价的 0.6 到 1.8 倍。倍率越高成交越慢（0.9 以下约一天，1.0 约两天，1.8 约十四天），货款带污点的可能性和比例也越高，近 7 天出售的量越大，污点越重；同时最多上架 10 件，上架收 5% 上架费，上架后可以改价（收 2% 改价费，标价按参考价重算，成交的快慢跟着新倍率走），成交扣 8% 抽成，货款托管 3 天后进钱包；卖假卡可能被买家看穿而退货，拉低好评；平台跑路时上架的货和未放款的货款都没了。匿名币兑换（Web3 交易页，要黑市声望）：Ponero 是隐私币，兑入时这部分价值的污点被清除；兑入、兑出各收 6% 手续费，每天有额度；从 Ponero 兑出的币来路不明，出金审查会加重。"
+item.web3guide.desc,"银行：存入把信用点换成 Poinbase 账户里的 CRC；提取把 CRC 换回信用点，要过合规审查，审查看 Poinbase 账户的污点。交易：买入按计价币的数量支付，卖出按所交易币的数量卖出。混币器：选币种、填数量和轮数，每轮扣手续费并降低污点，轮数即等待天数，到期提回同一个地址；存入越多，清洗越差。硬件钱包：链上的币放在 PLEDGER 硬件钱包里，每个钱包的余额和污点各算各的；在终端的钱包页打开、连接。Web3 页的交易、黑市、混币器用已连接的钱包，用币付款的顾客和挖矿收益也进它。付款（黑市、混币器、Ponero 兑换处、上架费）先在终端开账单，再在钱包里手输收款地址、按住 ✓ 签名；地址末尾两位是校验位，输错一位多半会被拦下，偶尔碰巧合法，币就转进了没人用的地址。DEX 兑换也要在钱包上签名。Poinbase 是托管账户，可以直接提到已连接的钱包；从钱包充值要转到 Poinbase 的充值地址，只收 CRC 和 PSC。更多硬件钱包向杰克逊博士购买，拖到交易终端上添加，最多 5 个；黑市上也有更便宜的。不要的钱包可以在钱包页销毁，要先把币转走。转账要付手续费，分慢、普通、快三档，gas 价格大约一周一个起落；网络拥堵时手续费变贵，慢档可能被挤出内存池。转账前核对完整地址。质押：把 CRA 质押进革命军质押池每天有日息，利息并入本金；取出要先申请，等四天才到账，等待期间没有利息，也不能提前拿。质押池靠补贴池付息，补贴池见底会降息，有时还会传出大户撤出的消息，那是预兆：一旦崩盘，三天内 CRA 就一文不值，四天的解锁期来不及。平衡代币 SPARK 可以和 CRA 按价格互相铸销（收手续费），价格波动很大，崩盘时会跟着暴跌。质押、铸销都是合约调用，要在钱包上签名。永续合约：Poinbase 的"永续"页，用账户里的 CRC 当保证金，PSC 最高 5 倍、SPARK 最高 3 倍，一个品种只有一个仓位，不能同时多空。成交价比现价差一截（单越大差得越多，和现货池一样），开平仓还收手续费。强平只在夜里按当天均价检查，权益不到名义价值的 10% 就被强平，保证金没了；每晚还有资金费，价格比近 7 天均价高时多头付给空头。强平后亏光保证金还不够的缺口，先由保险基金垫，基金见底（SPARK 崩盘这类大行情会抽干它）后盈利的仓位会被自动减仓、少拿一半盈利，再不够就记成你的欠款：欠款每天涨 2%，账户里的 CRC 每晚先拿去还，没还清不能开仓、不能出金，七天不还就没收店里的物品抵债，抵不够的核销并拉黑永续账户 30 天。黑市：只收币，不收 CRC，价格比正常渠道贵 30%，高科技物品和显卡另有加价；付出去的币带着按比例的污点留在卖家那边，货不带赃物标签；显卡不保证真假，自己鉴定。订单比现货便宜，要等几天，路上可能被截获；商家按类型卖货，价格系数各不相同，一次订 5 件以上 95 折、10 件以上 9 折，大宗商家随机出现，价格最低但要等六天；托管多付 5% 托管费，收货后放款，卖家跑路时退款；提前放款再打九折，卖家若是骗子钱就没了，只有成交 30 单以上的卖家接受；平台自己也可能跑路，也可能被执法接管，或者卖家落网，之后你的订单会被追查、记罪证；论坛上的传闻可以当预兆。被截获的包裹有时会变成执法人员上门：签收当场记罪证并查封，拒签只损失货款。出售：在黑市的卖货页把储藏区里的违禁品、高科技物品和显卡上架，标价是参考价的 0.6 到 1.8 倍。倍率越高成交越慢（0.9 以下约一天，1.0 约两天，1.8 约十四天），货款带污点的可能性和比例也越高，近 7 天出售的量越大，污点越重；同时最多上架 10 件，上架收 5% 上架费，上架后可以改价（收 2% 改价费，标价按参考价重算，成交的快慢跟着新倍率走），成交扣 8% 抽成，货款托管 3 天后进钱包；卖假卡可能被买家看穿而退货，拉低好评；平台跑路时上架的货和未放款的货款都没了。匿名币兑换（Web3 交易页，要黑市声望）：Ponero 是隐私币，兑入时这部分价值的污点被清除；兑入、兑出各收 6% 手续费，每天有额度；从 Ponero 兑出的币来路不明，出金审查会加重。"
 courier.odd1,……东西到了。
 courier.odd2,"（他的手一直放在口袋里）在这儿签个字。"
 courier.sign,签收
@@ -476,3 +476,47 @@ news.crawarn.desc,有大户在大量撤出，质押补贴池告急。解锁需
 news.cralow.title,革命军下调质押日息
 news.cralow.desc,补贴池余额见底，革命军把 CRA 质押日息降到了原来的零头。
 stake.avail2,"SPARK {0}"
+poin.sub.spot,现货
+poin.sub.perp,永续
+perp.h,永续合约
+perp.acct,"保证金账户 CRC {0}"
+perp.debt,"欠款 {0}，{1} 天后没收物品抵债。没还清前不能开仓、不能出金。"
+perp.banned,"永续账户被拉黑，还有 {0} 天。"
+perp.none,没有仓位。
+perp.col.pos,仓位
+perp.col.notional,名义
+perp.col.price,开仓 → 现价
+perp.col.pnl,盈亏
+perp.col.liq,强平价
+perp.long,多
+perp.short,空
+perp.rate,"{0}　现价 {1}　资金费 {2}%/晚"
+perp.fund,"保险基金 {0}"
+perp.open,开仓
+perp.margin,保证金（CRC）
+perp.preview,"名义 {0}　成交价 {1}"
+perp.do.open,开仓
+perp.do.add,追加保证金
+perp.do.close,平仓
+perp.opened,"已开 {0} {1}：保证金 {2} CRC，{3}×。"
+perp.added,"已追加 {0} CRC 保证金。"
+perp.closed,"已平仓，{0} CRC 回到账户（盈亏 {1}）。"
+perp.deficit,"权益不够付，缺口 {0} 由保险基金和欠款承担。"
+perp.err.Banned,永续账户被拉黑。
+perp.err.Debt,有欠款，不能开仓。
+perp.err.Leverage,杠杆超出这个品种的上限。
+perp.err.Size,超出这个品种的单仓名义价值上限。
+perp.err.Funds,账户里的 CRC 不够（还要付手续费）。
+perp.err.Opposite,同一品种不能同时多空，先平仓。
+perp.err.NoPosition,没有仓位。
+perp.err.Margin,请输入保证金数量。
+perp.debt.block,有永续欠款，不能出金。
+nightlog.perp.liq,"{0}被强平，保证金 {1} 没了。"
+nightlog.perp.adl,"保险基金见底，{0}的盈利被自动减仓，少拿了 {1}。"
+nightlog.perp.interest,"永续欠款计息，现在欠 {0}。"
+nightlog.perp.seize,"永续欠款逾期，没收的物品抵了 {0}。"
+nightlog.perp.writeoff,"还差 {0} 核销，永续账户被拉黑 {1} 天。"
+perp.slip.title,永续欠款没收单
+perp.preview2,"手续费 {0}　强平价 {1}"
+nightlog.perp.repaid,"永续穿仓欠款，从 Poinbase 账户扣了 {0} CRC 还款。"
+perp.err.Thin,"这个单子滑点太大，开了就会被强平。减小金额或杠杆。"

src/Decentralized/Night.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Decentralized.Domain;
@@ -107,6 +108,30 @@ namespace Decentralized
             }
         }
 
+        /// <summary>欠款逾期：没收物品抵债（用游戏自己的没收接口，和房贷逾期同一套，发一张没收单）；抵不够的核销并拉黑永续账户。</summary>
+        private static void SeizeForDebt(SaveData d, int day)
+        {
+            var ps = PlayerStore.Instance;
+            var items = ps.FindRepoItems(ps.GetAllRepoEligibleItems(), (int)Math.Ceiling(d.Perps.Debt));
+            double value = 0;
+            var names = new System.Text.StringBuilder();
+            foreach (var it in items)
+            {
+                if (it == null) continue;
+                value += it.GetCurrentValue(useRetailMarkup: false, withChild: true, includeEvents: true, forceMarkup: false, 0L);
+                names.AppendLine(it.name);
+            }
+            foreach (var it in items) it?.Destroy();
+            var slip = DirectoryMaster.Item("slip");
+            slip.name = L.T("perp.slip.title");
+            slip.ModifyTag("SLIP_TITLE", st => st.Enable().SetString(L.T("perp.slip.title")));
+            slip.ModifyTag("SLIP_BODY", st => st.Enable().SetString(names.ToString()));
+            ps.AddDirectSellingItemToTableMiddle(slip, true);
+            double off = d.Perps.ApplySeizure(value, day);
+            Log.Info($"永续欠款没收：抵 {value:0}，核销 {off:0}");
+            ps.AddNightLog(L.T("nightlog.perp.seize", Fmt.Credits(value)) + (off > 0.5 ? L.T("nightlog.perp.writeoff", Fmt.Credits(off), Tuning.PerpBanDays) : ""), "cc7755");
+        }
+
         private static void Settle()
         {
             var d = Session.Data;
@@ -156,6 +181,9 @@ namespace Decentralized
             d.Network.Night(day, d.Market.Price, hash);
             if (d.Network.Reward < rewardBefore) d.Market.OnHalving(d.Rng);
             if (d.Network.Reward < rewardBefore) News.Show("pd_news_halving_" + day, L.T("news.halving.title"), L.T("news.halving.desc"), 2);
+            // 永续：用今天的标记价（当日均价）结算，要在今晚的价格更新之前
+            var perpEvents = d.Perps.Night(day, new Dictionary<string, double> { ["PSC"] = d.Market.Mark, ["SPARK"] = d.Stable.Spark }, d.Poinbase, Session.Price);
+            if (perpEvents.Any(e => e.Kind == "seize")) SeizeForDebt(d, day);
             var stakeEvents = d.Staking.Night(day, d.Stable.CraRate, d.WalletAt);
             double crcFactor = d.Stable.Night(day, d.Rng, d.Staking.Earning);
             if (d.Stable.CraWarnDay == day) News.Show("pd_news_crawarn_" + day, L.T("news.crawarn.title"), L.T("news.crawarn.desc"), 4);
@@ -192,6 +220,14 @@ namespace Decentralized
                 ps.AddNightLog(L.T("nightlog.drained", WalletWindow.NameOf(w), Fmt.Credits(v)), "cc7755");
             }
             ChainNight(d, day);
+            foreach (var e in perpEvents)
+            {
+                string who = e.Product + " " + L.T(e.Long ? "perp.long" : "perp.short");
+                if (e.Kind == "liq") ps.AddNightLog(L.T("nightlog.perp.liq", who, Fmt.Credits(e.Amount)), "cc7755");
+                else if (e.Kind == "adl") ps.AddNightLog(L.T("nightlog.perp.adl", who, Fmt.Credits(e.Amount)), "cc7755");
+                else if (e.Kind == "interest") ps.AddNightLog(L.T("nightlog.perp.interest", Fmt.Credits(e.Amount)), "cc7755");
+                else if (e.Kind == "repaid") ps.AddNightLog(L.T("nightlog.perp.repaid", Fmt.Credits(e.Amount)), "cc7755");
+            }
             foreach (var e in stakeEvents)
             {
                 var sw = d.Own(e.Wallet);

src/Decentralized/Session.cs

@@ -31,6 +31,8 @@ namespace Decentralized
         public Stablecoins Stable = new Stablecoins();
         /// <summary>革命军 CRA 质押池里玩家各钱包的仓位。</summary>
         public Staking Staking = new Staking();
+        /// <summary>Poinbase 永续合约账本（保证金用 Poinbase 账户的 CRC）。</summary>
+        public PerpBook Perps = new PerpBook();
         /// <summary>质押日息下调的新闻已经发过。</summary>
         public bool CraLowNews;
         public Network Network = new Network();

src/Decentralized/TerminalWindow.cs

@@ -228,10 +228,22 @@ namespace Decentralized
         }
 
         /// <summary>Poinbase：合规交易所。左边账户持仓，右边交易；信用点的存取在银行。</summary>
+        private enum PoinTab { Spot, Perp }
+        private static PoinTab _poinTab = PoinTab.Spot;
+
         private static void ExchangePage(CustomUIBuilder b, Venue venue)
         {
             var d = Session.Data;
             var w = d.Poinbase;
+            b.BeginRow();
+            foreach (PoinTab t in Enum.GetValues(typeof(PoinTab)))
+            {
+                var tab = t;
+                string name = L.T("poin.sub." + t.ToString().ToLowerInvariant());
+                b.AddButton(tab == _poinTab ? $"[{name}]" : name, () => { _poinTab = tab; _message = null; Open(); });
+            }
+            b.End();
+            if (_poinTab == PoinTab.Perp) { PerpPage(b); return; }
             Columns(b, l =>
             {
                 l.AddHeader(L.T("poin.account.h"));
@@ -261,6 +273,116 @@ namespace Decentralized
 
         private static string _poinAsset = Assets.CRC;
 
+        private static string _perpProduct = "PSC";
+        private static bool _perpLong = true;
+        private static int _perpLev = 3;
+        private static readonly float[] PerpW = { 118f, 60f, 104f, 60f, 58f };
+
+        private static double PerpSpot(string p) => p == "SPARK" ? Session.Data.Stable.Spark : Session.Data.Market.Price;
+
+        /// <summary>永续页：保证金账户、仓位、资金费与保险基金；开仓、追加保证金、平仓。Poinbase 是托管账户，不用签名。</summary>
+        private static void PerpPage(CustomUIBuilder b)
+        {
+            var d = Session.Data;
+            var bk = d.Perps;
+            var acct = d.Poinbase;
+            int day = StoreStation.GetDayCounter();
+            if (_perpLev > PerpBook.MaxLeverage(_perpProduct)) _perpLev = PerpBook.MaxLeverage(_perpProduct);
+            Columns(b, l =>
+            {
+                l.AddHeader(L.T("perp.h"));
+                l.AddLabel(L.T("perp.acct", Fmt.Num(acct.Avail(Assets.CRC))));
+                if (bk.Debt > 0) l.AddLabel(L.T("perp.debt", Fmt.Credits(bk.Debt), Math.Max(0, Tuning.PerpDebtDays - (day - bk.DebtSince))));
+                if (bk.Banned(day)) l.AddLabel(L.T("perp.banned", bk.BannedUntil - day + 1));
+                l.AddSeparator();
+                if (bk.Positions.Count == 0) l.AddLabel(L.T("perp.none"));
+                else
+                {
+                    TableHeader(l, PerpW, L.T("perp.col.pos"), L.T("perp.col.notional"), L.T("perp.col.price"), L.T("perp.col.pnl"), L.T("perp.col.liq"));
+                    foreach (var p in bk.Positions)
+                    {
+                        double spot = PerpSpot(p.Product);
+                        TableRow(l, PerpW, p.Product + " " + L.T(p.Long ? "perp.long" : "perp.short") + " " + Math.Round(p.Leverage, 1) + "×", Fmt.Credits(p.Notional(spot)),
+                            Fmt.Num(p.Entry) + " → " + Fmt.Num(spot), Fmt.Credits(p.Pnl(spot)), Fmt.Num(p.LiqPrice));
+                    }
+                }
+                l.AddSeparator();
+                foreach (var p in PerpBook.Products)
+                    l.AddLabel(L.T("perp.rate", p, Fmt.Num(PerpSpot(p)), (bk.Rate(p) * 100).ToString("+0.00;-0.00;0.00", CultureInfo.InvariantCulture)));
+                l.AddLabel(L.T("perp.fund", Fmt.Credits(bk.InsuranceFund)));
+            }, r =>
+            {
+                r.AddHeader(L.T("perp.open"));
+                r.BeginRow();
+                foreach (var p in PerpBook.Products)
+                {
+                    var product = p;
+                    r.AddButton(product == _perpProduct ? $"[{product}]" : product, () => { _perpProduct = product; Open(); });
+                }
+                r.End();
+                r.BeginRow();
+                r.AddButton(_perpLong ? "[" + L.T("perp.long") + "]" : L.T("perp.long"), () => { _perpLong = true; Open(); });
+                r.AddButton(!_perpLong ? "[" + L.T("perp.short") + "]" : L.T("perp.short"), () => { _perpLong = false; Open(); });
+                r.End();
+                r.BeginRow();
+                foreach (int lev in new[] { 1, 2, 3, 5 })
+                {
+                    if (lev > PerpBook.MaxLeverage(_perpProduct)) continue;
+                    int lv = lev;
+                    r.AddButton(lv == _perpLev ? $"[{lv}×]" : lv + "×", () => { _perpLev = lv; Open(); });
+                }
+                r.End();
+                r.AddLabel(L.T("perp.margin"));
+                AmountRow(r);
+                if (double.TryParse((_amount ?? "").Trim(), NumberStyles.Float, CultureInfo.InvariantCulture, out double m) && m > 0)
+                {
+                    double notional = m * _perpLev, spot = PerpSpot(_perpProduct), exec = bk.Exec(spot, notional, _perpLong, day);
+                    var ghost = new PerpPosition { Long = _perpLong, Entry = exec, Size = notional / exec, Margin = m };
+                    r.AddLabel(L.T("perp.preview", Fmt.Credits(notional), Fmt.Num(exec)));
+                    r.AddLabel(L.T("perp.preview2", Fmt.Num(notional * Tuning.PerpFee), Fmt.Num(ghost.LiqPrice)));
+                }
+                r.BeginRow();
+                r.AddButton(L.T("perp.do.open"), PerpOpen);
+                r.AddButton(L.T("perp.do.add"), PerpAdd);
+                r.AddButton(L.T("perp.do.close"), PerpClose);
+                r.End();
+            });
+        }
+
+        private static string PerpErr(PerpResult res) => L.T("perp.err." + res);
+
+        private static void PerpOpen()
+        {
+            if (!ReadAmount(out double v)) return;
+            var d = Session.Data;
+            var res = d.Perps.Open(d.Poinbase, _perpProduct, _perpLong, v, _perpLev, PerpSpot(_perpProduct), StoreStation.GetDayCounter(), Session.Price);
+            _message = res == PerpResult.Ok ? L.T("perp.opened", _perpProduct, L.T(_perpLong ? "perp.long" : "perp.short"), Fmt.Num(v), _perpLev) : PerpErr(res);
+            if (res == PerpResult.Ok) Session.Save();
+            Open();
+        }
+
+        private static void PerpAdd()
+        {
+            if (!ReadAmount(out double v)) return;
+            var d = Session.Data;
+            var res = d.Perps.AddMargin(d.Poinbase, _perpProduct, v, Session.Price);
+            _message = res == PerpResult.Ok ? L.T("perp.added", Fmt.Num(v)) : PerpErr(res);
+            if (res == PerpResult.Ok) Session.Save();
+            Open();
+        }
+
+        private static void PerpClose()
+        {
+            var d = Session.Data;
+            var pos = d.Perps.Of(_perpProduct);
+            if (pos == null) { _message = PerpErr(PerpResult.NoPosition); Open(); return; }
+            double margin = pos.Margin;
+            double paid = d.Perps.Close(d.Poinbase, _perpProduct, PerpSpot(_perpProduct), StoreStation.GetDayCounter(), out double deficit);
+            _message = L.T("perp.closed", Fmt.Num(paid), (paid - margin >= 0 ? "+" : "") + Fmt.Num(paid - margin)) + (deficit > 0 ? "\n" + L.T("perp.deficit", Fmt.Credits(deficit)) : "");
+            Session.Save();
+            Open();
+        }
+
         /// <summary>Poinbase 提到当前钱包：托管账户直接转，不用签名。污点按比例随币走。</summary>
         private static void PoinbaseOut()
         {
@@ -1061,6 +1183,7 @@ namespace Decentralized
         {
             if (!ReadAmount(out double v)) return;
             var d = Session.Data;
+            if (d.Perps.Debt > 0) { _message = L.T("perp.debt.block"); Open(); return; }
             if (d.Poinbase.Avail(Assets.CRC) + 1e-9 < v) { _message = L.T("msg.balance"); Open(); return; }
             var r = d.Exchange.Cashout(d.Poinbase, v, Session.Price, StoreStation.GetDayCounter(), Session.Rent(), d.Mixer.RecentlyMixed(StoreStation.GetDayCounter()), d.Rng);
             int got = (int)Math.Floor(r.Received - r.Tax);