diff --git a/client/src/App.tsx b/client/src/App.tsx
index cb11478..3db58eb 100644
--- a/client/src/App.tsx
+++ b/client/src/App.tsx
@@ -1,16 +1,43 @@
 import { Toaster } from "@/components/ui/sonner";
 import { TooltipProvider } from "@/components/ui/tooltip";
 import NotFound from "@/pages/NotFound";
-import { Route, Switch } from "wouter";
+import { Route, Switch, useLocation } from "wouter";
 import ErrorBoundary from "./components/ErrorBoundary";
 import { ThemeProvider } from "./contexts/ThemeContext";
 import Home from "./pages/Home";
 import Tutorial from "./pages/Tutorial";
 import Admin from "./pages/Admin";
 import Bridge from "./pages/Bridge";
+import { useEffect } from "react";
+
+// 跨链桥专属域名列表 — 访问这些域名时直接显示 Bridge 页面
+const BRIDGE_HOSTNAMES = ["trc-ico.newassetchain.io"];
+
+function BridgeRedirect() {
+  const [, setLocation] = useLocation();
+  useEffect(() => {
+    setLocation("/bridge", { replace: true });
+  }, [setLocation]);
+  return null;
+}
 
 function Router() {
-  // make sure to consider if you need authentication for certain routes
+  // 检测当前 hostname，若为跨链桥专属域名则直接渲染 Bridge 页面
+  const isBridgeDomain = BRIDGE_HOSTNAMES.includes(window.location.hostname);
+
+  if (isBridgeDomain) {
+    // 整个站点在此域名下只渲染 Bridge，/bridge 路由和根路由均指向 Bridge
+    return (
+      <Switch>
+        <Route path={"/"} component={Bridge} />
+        <Route path={"/bridge"} component={Bridge} />
+        <Route path={"/404"} component={NotFound} />
+        <Route component={Bridge} />
+      </Switch>
+    );
+  }
+
+  // 普通域名（pre-sale.newassetchain.io / ico.newassetchain.io）完整路由
   return (
     <Switch>
       <Route path={"/"} component={Home} />
@@ -24,11 +51,6 @@ function Router() {
   );
 }
 
-// NOTE: About Theme
-// - First choose a default theme according to your design style (dark or light bg), than change color palette in index.css
-//   to keep consistent foreground/background color across components
-// - If you want to make theme switchable, pass `switchable` ThemeProvider and use `useTheme` hook
-
 function App() {
   return (
     <ErrorBoundary>
diff --git a/client/src/const.ts b/client/src/const.ts
index bee8daa..a1ede79 100644
--- a/client/src/const.ts
+++ b/client/src/const.ts
@@ -1,17 +1,27 @@
 export { COOKIE_NAME, ONE_YEAR_MS } from "@shared/const";
 
 // Generate login URL at runtime so redirect URI reflects the current origin.
+// IMPORTANT: This presale site is deployed on NAC's own servers (newassetchain.io).
+// We do NOT use Manus OAuth — admin login is handled by the local /admin page.
 export const getLoginUrl = () => {
   const oauthPortalUrl = import.meta.env.VITE_OAUTH_PORTAL_URL || "";
   const appId = import.meta.env.VITE_APP_ID || "";
-  const redirectUri = `${window.location.origin}/api/oauth/callback`;
-  const state = btoa(redirectUri);
 
-  if (!oauthPortalUrl || !appId) {
-    // OAuth not configured — redirect to admin login page
+  // If OAuth portal is not configured, or it points to Manus (not NAC's own OAuth),
+  // redirect to the local admin login page instead.
+  if (
+    !oauthPortalUrl ||
+    !appId ||
+    oauthPortalUrl.includes("manus.im") ||
+    oauthPortalUrl.includes("manus.space") ||
+    oauthPortalUrl.includes("manus.computer")
+  ) {
     return "/admin";
   }
 
+  const redirectUri = `${window.location.origin}/api/oauth/callback`;
+  const state = btoa(redirectUri);
+
   const url = new URL(`${oauthPortalUrl}/app-auth`);
   url.searchParams.set("appId", appId);
   url.searchParams.set("redirectUri", redirectUri);
diff --git a/client/src/pages/Admin.tsx b/client/src/pages/Admin.tsx
index 1101a17..13bffa7 100644
--- a/client/src/pages/Admin.tsx
+++ b/client/src/pages/Admin.tsx
@@ -119,7 +119,114 @@ function LoginForm({ onLogin }: { onLogin: (token: string) => void }) {
   );
 }
 
-// ─── Main D// ─── Settings Panel ───────────────────────────────────────────────
+// ─── Receiving Address Panel (安全加固：接收地址仅管理员可修改) ────────────────────────────
+function ReceivingAddressPanel({ token }: { token: string }) {
+  const { data: currentAddresses, refetch } = trpc.settings.getReceivingAddresses.useQuery();
+  const [values, setValues] = useState<Record<string, string>>({});
+  const [saving, setSaving] = useState<string | null>(null);
+  const [saved, setSaved] = useState<Set<string>>(new Set());
+
+  useEffect(() => {
+    if (currentAddresses) {
+      setValues({
+        trc20_receiving_address: currentAddresses.trc20_receiving_address || "",
+        bsc_receiving_address: currentAddresses.bsc_receiving_address || "",
+        eth_receiving_address: currentAddresses.eth_receiving_address || "",
+      });
+    }
+  }, [currentAddresses]);
+
+  const updateMutation = trpc.settings.updateReceivingAddress.useMutation({
+    onSuccess: (_, vars) => {
+      setSaving(null);
+      setSaved(prev => { const s = new Set(Array.from(prev)); s.add(vars.key); return s; });
+      refetch();
+      setTimeout(() => setSaved(prev => { const n = new Set(Array.from(prev)); n.delete(vars.key); return n; }), 2500);
+    },
+    onError: (err) => {
+      setSaving(null);
+      alert(`保存失败: ${err.message}`);
+    },
+  });
+
+  const handleSave = (key: "trc20_receiving_address" | "bsc_receiving_address" | "eth_receiving_address") => {
+    setSaving(key);
+    updateMutation.mutate({ token, key, value: values[key] || "" });
+  };
+
+  const fields = [
+    {
+      key: "trc20_receiving_address" as const,
+      label: "TRC20 USDT 接收地址",
+      hint: "TRON 网络上接收 USDT 的钉包地址（T 开头，34 位）",
+      placeholder: "TWc2ug...",
+      color: "#FF0013",
+    },
+    {
+      key: "bsc_receiving_address" as const,
+      label: "BSC 预售合约地址",
+      hint: "BSC 网络上的预售合约地址（0x 开头，42 位）",
+      placeholder: "0x...",
+      color: "#F0B90B",
+    },
+    {
+      key: "eth_receiving_address" as const,
+      label: "ETH 预售合约地址",
+      hint: "Ethereum 网络上的预售合约地址（0x 开头，42 位）",
+      placeholder: "0x...",
+      color: "#627EEA",
+    },
+  ];
+
+  return (
+    <div className="rounded-2xl p-5" style={{ background: "rgba(255,82,82,0.04)", border: "2px solid rgba(255,82,82,0.35)" }}>
+      <div className="flex items-center gap-2 mb-1">
+        <span style={{ color: "#ff5252", fontSize: "1.1rem" }}>⚠️</span>
+        <h3 className="text-sm font-bold" style={{ color: "#ff5252" }}>
+          接收地址配置 — 仅管理员可修改
+        </h3>
+      </div>
+      <p className="text-xs mb-4" style={{ color: "rgba(255,255,255,0.45)" }}>
+        此处配置的地址将在首页以只读方式展示给用户。修改前请确认地址正确，错误地址将导致用户资金损失。
+      </p>
+      <div className="space-y-4">
+        {fields.map(({ key, label, hint, placeholder, color }) => (
+          <div key={key} className="rounded-xl p-4" style={{ background: "rgba(255,255,255,0.02)", border: "1px solid rgba(255,255,255,0.07)" }}>
+            <div className="flex items-center gap-2 mb-1">
+              <div className="w-2 h-2 rounded-full" style={{ background: color }} />
+              <span className="text-sm font-semibold text-white/80">{label}</span>
+            </div>
+            <p className="text-xs text-white/40 mb-2">{hint}</p>
+            <div className="flex gap-2">
+              <input
+                type="text"
+                value={values[key] ?? ""}
+                onChange={e => setValues(prev => ({ ...prev, [key]: e.target.value }))}
+                placeholder={placeholder}
+                className="flex-1 px-3 py-2 rounded-lg text-sm font-mono"
+                style={{ background: "rgba(255,255,255,0.05)", border: "1px solid rgba(255,255,255,0.1)", color: "white", outline: "none" }}
+              />
+              <button
+                onClick={() => handleSave(key)}
+                disabled={saving === key}
+                className="px-4 py-2 rounded-lg text-xs font-semibold whitespace-nowrap transition-all"
+                style={{
+                  background: saved.has(key) ? "rgba(0,230,118,0.2)" : "rgba(255,82,82,0.15)",
+                  border: saved.has(key) ? "1px solid rgba(0,230,118,0.4)" : "1px solid rgba(255,82,82,0.4)",
+                  color: saved.has(key) ? "#00e676" : "#ff5252",
+                }}
+              >
+                {saving === key ? "保存中..." : saved.has(key) ? "✓ 已保存" : "保存"}
+              </button>
+            </div>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}
+
+// ─── Settings Panel ───────────────────────────────────────────────
 function SettingsPanel({ token }: { token: string }) {
   const { data: configData, refetch: refetchConfig, isLoading } = trpc.admin.getConfig.useQuery({ token });
   const [editValues, setEditValues] = useState<Record<string, string>>({});
@@ -361,6 +468,9 @@ function SettingsPanel({ token }: { token: string }) {
         })}
       </div>
 
+      {/* ── Receiving Addresses 接收地址配置 —— 仅管理员可修改 —— */}
+      <ReceivingAddressPanel token={token} />
+
       {/* Telegram Notifications */}
       <div className="rounded-2xl p-5" style={{ background: "rgba(255,255,255,0.02)", border: "1px solid rgba(0,230,118,0.15)" }}>
         <h3 className="text-sm font-semibold mb-1" style={{ color: "#00e676" }}>Telegram Notifications</h3>
diff --git a/client/src/pages/Home.tsx b/client/src/pages/Home.tsx
index fc606a9..193eeaf 100644
--- a/client/src/pages/Home.tsx
+++ b/client/src/pages/Home.tsx
@@ -133,8 +133,13 @@ function TRC20Panel({ usdtAmount, lang, connectedAddress, onConnectWallet }: { u
     },
   });
 
+  // 从数据库加载接收地址（只读，不可编辑）
+  const { data: receivingAddresses } = trpc.settings.getReceivingAddresses.useQuery();
+  const trc20ReceivingAddress = receivingAddresses?.trc20_receiving_address || "";
+
   const copyAddress = () => {
-    navigator.clipboard.writeText(CONTRACTS.TRON.receivingWallet);
+    if (!trc20ReceivingAddress) return;
+    navigator.clipboard.writeText(trc20ReceivingAddress);
     setCopied(true);
     toast.success(lang === "zh" ? "地址已复制到剪贴板！" : "Address copied to clipboard!");
     setTimeout(() => setCopied(false), 2000);
@@ -271,18 +276,37 @@ function TRC20Panel({ usdtAmount, lang, connectedAddress, onConnectWallet }: { u
       </div>
 
       <div className="nac-card-blue rounded-xl p-4 space-y-3">
-        <p className="text-sm font-medium text-white/80">{t("trc20_send_to")}</p>
+        <div className="flex items-center justify-between">
+          <p className="text-sm font-medium text-white/80">{t("trc20_send_to")}</p>
+          <span className="text-xs px-2 py-0.5 rounded" style={{ background: "rgba(255,255,255,0.08)", color: "rgba(255,255,255,0.4)" }}>
+            {lang === "zh" ? "只读" : "Read Only"}
+          </span>
+        </div>
+        {/* 接收地址只读显示——不可编辑，只能复制，防止页面夹持欺诈 */}
         <div
-          className="trc20-address p-3 rounded-lg cursor-pointer hover:bg-white/5 transition-colors"
-          style={{ background: "rgba(0,212,255,0.05)", border: "1px solid rgba(0,212,255,0.2)" }}
-          onClick={copyAddress}
+          className="trc20-address p-3 rounded-lg select-all"
+          style={{
+            background: "rgba(255,255,255,0.04)",
+            border: "1px solid rgba(255,255,255,0.1)",
+            color: "rgba(255,255,255,0.6)",
+            fontFamily: "monospace",
+            fontSize: "0.85rem",
+            wordBreak: "break-all",
+            cursor: "default",
+            userSelect: "text",
+          }}
         >
-          {CONTRACTS.TRON.receivingWallet}
+          {trc20ReceivingAddress || (
+            <span style={{ color: "rgba(255,255,255,0.3)" }}>
+              {lang === "zh" ? "加载中...请稍候" : "Loading..."}
+            </span>
+          )}
         </div>
         <button
           onClick={copyAddress}
+          disabled={!trc20ReceivingAddress}
           className="w-full py-2 rounded-lg text-sm font-semibold transition-all"
-          style={{ background: copied ? "rgba(0,230,118,0.2)" : "rgba(0,212,255,0.15)", border: "1px solid rgba(0,212,255,0.4)", color: copied ? "#00e676" : "#00d4ff" }}
+          style={{ background: copied ? "rgba(0,230,118,0.2)" : "rgba(0,212,255,0.15)", border: "1px solid rgba(0,212,255,0.4)", color: copied ? "#00e676" : "#00d4ff", opacity: trc20ReceivingAddress ? 1 : 0.5 }}
         >
           {copied ? t("trc20_copied") : t("trc20_copy")}
         </button>
diff --git a/drizzle/0010_grey_johnny_blaze.sql b/drizzle/0010_grey_johnny_blaze.sql
new file mode 100644
index 0000000..a42087d
--- /dev/null
+++ b/drizzle/0010_grey_johnny_blaze.sql
@@ -0,0 +1,10 @@
+CREATE TABLE `site_settings` (
+	`id` int AUTO_INCREMENT NOT NULL,
+	`key` varchar(64) NOT NULL,
+	`value` text NOT NULL,
+	`label` varchar(128),
+	`description` varchar(256),
+	`updatedAt` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
+	CONSTRAINT `site_settings_id` PRIMARY KEY(`id`),
+	CONSTRAINT `site_settings_key_unique` UNIQUE(`key`)
+);
diff --git a/drizzle/meta/0010_snapshot.json b/drizzle/meta/0010_snapshot.json
new file mode 100644
index 0000000..772e07f
--- /dev/null
+++ b/drizzle/meta/0010_snapshot.json
@@ -0,0 +1,1027 @@
+{
+  "version": "5",
+  "dialect": "mysql",
+  "id": "15a7b12c-291c-4dc1-8d2e-d6dcf712f2f0",
+  "prevId": "3cfb2ddb-f45d-428a-80da-78d8e6fed501",
+  "tables": {
+    "bridge_intents": {
+      "name": "bridge_intents",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "fromChainId": {
+          "name": "fromChainId",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "senderAddress": {
+          "name": "senderAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "xicReceiveAddress": {
+          "name": "xicReceiveAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "expectedUsdt": {
+          "name": "expectedUsdt",
+          "type": "decimal(20,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "matched": {
+          "name": "matched",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": false
+        },
+        "matchedOrderId": {
+          "name": "matchedOrderId",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "bridge_intents_id": {
+          "name": "bridge_intents_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {},
+      "checkConstraint": {}
+    },
+    "bridge_orders": {
+      "name": "bridge_orders",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "txHash": {
+          "name": "txHash",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "walletAddress": {
+          "name": "walletAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "fromChainId": {
+          "name": "fromChainId",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "fromToken": {
+          "name": "fromToken",
+          "type": "varchar(32)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "fromAmount": {
+          "name": "fromAmount",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "toChainId": {
+          "name": "toChainId",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": 56
+        },
+        "toToken": {
+          "name": "toToken",
+          "type": "varchar(32)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'XIC'"
+        },
+        "toAmount": {
+          "name": "toAmount",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "xicReceiveAddress": {
+          "name": "xicReceiveAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "status": {
+          "name": "status",
+          "type": "enum('pending','confirmed','distributed','failed')",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'pending'"
+        },
+        "confirmedAt": {
+          "name": "confirmedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "distributedAt": {
+          "name": "distributedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "distributeTxHash": {
+          "name": "distributeTxHash",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "blockNumber": {
+          "name": "blockNumber",
+          "type": "bigint",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "bridge_orders_id": {
+          "name": "bridge_orders_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "bridge_orders_txHash_unique": {
+          "name": "bridge_orders_txHash_unique",
+          "columns": [
+            "txHash"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    },
+    "fiat_orders": {
+      "name": "fiat_orders",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "orderId": {
+          "name": "orderId",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "gatewayOrderId": {
+          "name": "gatewayOrderId",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "channel": {
+          "name": "channel",
+          "type": "enum('alipay','wechat','paypal')",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "userId": {
+          "name": "userId",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "payerEmail": {
+          "name": "payerEmail",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "payerOpenId": {
+          "name": "payerOpenId",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "xicReceiveAddress": {
+          "name": "xicReceiveAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "usdtEquivalent": {
+          "name": "usdtEquivalent",
+          "type": "decimal(20,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "currency": {
+          "name": "currency",
+          "type": "varchar(8)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'USD'"
+        },
+        "originalAmount": {
+          "name": "originalAmount",
+          "type": "decimal(20,4)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "xicAmount": {
+          "name": "xicAmount",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "status": {
+          "name": "status",
+          "type": "enum('pending','paid','distributed','refunded','failed','expired')",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'pending'"
+        },
+        "qrCodeUrl": {
+          "name": "qrCodeUrl",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "paymentUrl": {
+          "name": "paymentUrl",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "callbackPayload": {
+          "name": "callbackPayload",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "distributedAt": {
+          "name": "distributedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "expiredAt": {
+          "name": "expiredAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "fiat_orders_id": {
+          "name": "fiat_orders_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "fiat_orders_orderId_unique": {
+          "name": "fiat_orders_orderId_unique",
+          "columns": [
+            "orderId"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    },
+    "listener_state": {
+      "name": "listener_state",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "varchar(32)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "lastBlock": {
+          "name": "lastBlock",
+          "type": "bigint",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": 0
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "listener_state_id": {
+          "name": "listener_state_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {},
+      "checkConstraint": {}
+    },
+    "presale_config": {
+      "name": "presale_config",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "key": {
+          "name": "key",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "value": {
+          "name": "value",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "label": {
+          "name": "label",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "description": {
+          "name": "description",
+          "type": "varchar(256)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "type": {
+          "name": "type",
+          "type": "varchar(32)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'text'"
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "presale_config_id": {
+          "name": "presale_config_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "presale_config_key_unique": {
+          "name": "presale_config_key_unique",
+          "columns": [
+            "key"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    },
+    "presale_stats_cache": {
+      "name": "presale_stats_cache",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "chain": {
+          "name": "chain",
+          "type": "varchar(16)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "usdtRaised": {
+          "name": "usdtRaised",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'0'"
+        },
+        "tokensSold": {
+          "name": "tokensSold",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'0'"
+        },
+        "weiRaised": {
+          "name": "weiRaised",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'0'"
+        },
+        "lastUpdated": {
+          "name": "lastUpdated",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "presale_stats_cache_id": {
+          "name": "presale_stats_cache_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {},
+      "checkConstraint": {}
+    },
+    "site_settings": {
+      "name": "site_settings",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "key": {
+          "name": "key",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "value": {
+          "name": "value",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "label": {
+          "name": "label",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "description": {
+          "name": "description",
+          "type": "varchar(256)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "site_settings_id": {
+          "name": "site_settings_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "site_settings_key_unique": {
+          "name": "site_settings_key_unique",
+          "columns": [
+            "key"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    },
+    "transaction_logs": {
+      "name": "transaction_logs",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "txHash": {
+          "name": "txHash",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "chainType": {
+          "name": "chainType",
+          "type": "varchar(16)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "fromAddress": {
+          "name": "fromAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "toAddress": {
+          "name": "toAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "amount": {
+          "name": "amount",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "blockNumber": {
+          "name": "blockNumber",
+          "type": "bigint",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "status": {
+          "name": "status",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": 0
+        },
+        "orderNo": {
+          "name": "orderNo",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "transaction_logs_id": {
+          "name": "transaction_logs_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "transaction_logs_txHash_unique": {
+          "name": "transaction_logs_txHash_unique",
+          "columns": [
+            "txHash"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    },
+    "trc20_intents": {
+      "name": "trc20_intents",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "tronAddress": {
+          "name": "tronAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "evmAddress": {
+          "name": "evmAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "expectedUsdt": {
+          "name": "expectedUsdt",
+          "type": "decimal(20,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "matched": {
+          "name": "matched",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": false
+        },
+        "matchedPurchaseId": {
+          "name": "matchedPurchaseId",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "trc20_intents_id": {
+          "name": "trc20_intents_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {},
+      "checkConstraint": {}
+    },
+    "trc20_purchases": {
+      "name": "trc20_purchases",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "txHash": {
+          "name": "txHash",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "fromAddress": {
+          "name": "fromAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "usdtAmount": {
+          "name": "usdtAmount",
+          "type": "decimal(20,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "xicAmount": {
+          "name": "xicAmount",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "blockNumber": {
+          "name": "blockNumber",
+          "type": "bigint",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "status": {
+          "name": "status",
+          "type": "enum('pending','confirmed','distributed','failed')",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'pending'"
+        },
+        "distributedAt": {
+          "name": "distributedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "distributeTxHash": {
+          "name": "distributeTxHash",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "evmAddress": {
+          "name": "evmAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "trc20_purchases_id": {
+          "name": "trc20_purchases_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "trc20_purchases_txHash_unique": {
+          "name": "trc20_purchases_txHash_unique",
+          "columns": [
+            "txHash"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    },
+    "users": {
+      "name": "users",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "openId": {
+          "name": "openId",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "name": {
+          "name": "name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "email": {
+          "name": "email",
+          "type": "varchar(320)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "loginMethod": {
+          "name": "loginMethod",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "role": {
+          "name": "role",
+          "type": "enum('user','admin')",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'user'"
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        },
+        "lastSignedIn": {
+          "name": "lastSignedIn",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "users_id": {
+          "name": "users_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "users_openId_unique": {
+          "name": "users_openId_unique",
+          "columns": [
+            "openId"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    }
+  },
+  "views": {},
+  "_meta": {
+    "schemas": {},
+    "tables": {},
+    "columns": {}
+  },
+  "internal": {
+    "tables": {},
+    "indexes": {}
+  }
+}
\ No newline at end of file
diff --git a/drizzle/meta/_journal.json b/drizzle/meta/_journal.json
index dd54d00..3af4d2b 100644
--- a/drizzle/meta/_journal.json
+++ b/drizzle/meta/_journal.json
@@ -71,6 +71,13 @@
       "when": 1773146163886,
       "tag": "0009_charming_lady_deathstrike",
       "breakpoints": true
+    },
+    {
+      "idx": 10,
+      "version": "5",
+      "when": 1773149657785,
+      "tag": "0010_grey_johnny_blaze",
+      "breakpoints": true
     }
   ]
 }
\ No newline at end of file
diff --git a/drizzle/schema.ts b/drizzle/schema.ts
index be65ee4..573dde2 100644
--- a/drizzle/schema.ts
+++ b/drizzle/schema.ts
@@ -201,3 +201,19 @@ export const fiatOrders = mysqlTable("fiat_orders", {
 
 export type FiatOrder = typeof fiatOrders.$inferSelect;
 export type InsertFiatOrder = typeof fiatOrders.$inferInsert;
+
+// ─── Site Settings ────────────────────────────────────────────────────────────
+// Global configuration key-value store managed by admin.
+// Keys: trc20_receiving_address, bsc_receiving_address, eth_receiving_address
+// Frontend reads via publicProcedure (read-only); admin writes via adminProcedure.
+export const siteSettings = mysqlTable("site_settings", {
+  id: int("id").autoincrement().primaryKey(),
+  key: varchar("key", { length: 64 }).notNull().unique(),
+  value: text("value").notNull(),
+  label: varchar("label", { length: 128 }),
+  description: varchar("description", { length: 256 }),
+  updatedAt: timestamp("updatedAt").defaultNow().onUpdateNow().notNull(),
+});
+
+export type SiteSetting = typeof siteSettings.$inferSelect;
+export type InsertSiteSetting = typeof siteSettings.$inferInsert;
diff --git a/server/routers.ts b/server/routers.ts
index 0740b5a..1fbd38c 100644
--- a/server/routers.ts
+++ b/server/routers.ts
@@ -30,7 +30,30 @@ import {
   handlePaypalWebhook,
   generatePaypalOrderId,
 } from "./services/paypalService";
-import { fiatOrders } from "../drizzle/schema";
+import { fiatOrders, siteSettings } from "../drizzle/schema";
+
+// Default receiving addresses (used when DB is empty — admin must update via admin panel)
+const DEFAULT_RECEIVING_ADDRESSES: Record<string, string> = {
+  trc20_receiving_address: "TWc2ugYBFN5aSoimAh4qGt9oMyket6NYZp",
+  bsc_receiving_address: "0x0000000000000000000000000000000000000000",
+  eth_receiving_address: "0x0000000000000000000000000000000000000000",
+};
+
+// Helper: get a site setting by key
+async function getSiteSetting(key: string): Promise<string | null> {
+  const db = await getDb();
+  if (!db) return null;
+  const rows = await db.select().from(siteSettings).where(eq(siteSettings.key, key)).limit(1);
+  return rows[0]?.value ?? null;
+}
+
+// Helper: upsert a site setting
+async function upsertSiteSetting(key: string, value: string, label?: string, description?: string) {
+  const db = await getDb();
+  if (!db) throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "Database unavailable" });
+  await db.insert(siteSettings).values({ key, value, label: label ?? null, description: description ?? null })
+    .onDuplicateKeyUpdate({ set: { value, updatedAt: new Date() } });
+}
 
 // Admin password from env (fallback for development)
 const ADMIN_PASSWORD = process.env.ADMIN_PASSWORD || "NACadmin2026!";
@@ -795,7 +818,60 @@ export const appRouter = router({
         await setConfig("telegramChatId", input.chatId);
         return { success: true };
       }),
+   }),
+
+  // ─── Settings (Receiving Addresses) ────────────────────────────────────────────────
+  // Public: read receiving addresses (frontend read-only display)
+  // Admin: update receiving addresses (only via admin panel)
+  settings: router({
+    // Public: get all receiving addresses (read-only for frontend)
+    getReceivingAddresses: publicProcedure.query(async () => {
+      const keys = ["trc20_receiving_address", "bsc_receiving_address", "eth_receiving_address"];
+      const result: Record<string, string> = {};
+      for (const key of keys) {
+        const val = await getSiteSetting(key);
+        result[key] = val ?? DEFAULT_RECEIVING_ADDRESSES[key] ?? "";
+      }
+      return result;
+    }),
+
+    // Admin: update a receiving address (requires admin token)
+    updateReceivingAddress: publicProcedure
+      .input(z.object({
+        token: z.string(),
+        key: z.enum(["trc20_receiving_address", "bsc_receiving_address", "eth_receiving_address"]),
+        value: z.string().min(10).max(128),
+      }))
+      .mutation(async ({ input }) => {
+        if (!input.token.startsWith("bmFjLWFkbWlu")) {
+          throw new TRPCError({ code: "UNAUTHORIZED", message: "Invalid admin token" });
+        }
+        const labels: Record<string, string> = {
+          trc20_receiving_address: "TRC20 USDT 接收地址",
+          bsc_receiving_address: "BSC ERC20 USDT 接收地址",
+          eth_receiving_address: "ETH ERC20 USDT 接收地址",
+        };
+        await upsertSiteSetting(
+          input.key,
+          input.value,
+          labels[input.key],
+          "仅管理员可修改，前端只读显示"
+        );
+        console.log(`[Admin] Receiving address updated: ${input.key} = ${input.value}`);
+        return { success: true };
+      }),
+
+    // Admin: get all site settings
+    getAllSettings: publicProcedure
+      .input(z.object({ token: z.string() }))
+      .query(async ({ input }) => {
+        if (!input.token.startsWith("bmFjLWFkbWlu")) {
+          throw new TRPCError({ code: "UNAUTHORIZED", message: "Invalid admin token" });
+        }
+        const db = await getDb();
+        if (!db) return [];
+        return await db.select().from(siteSettings);
+      }),
   }),
 });
-
 export type AppRouter = typeof appRouter;
diff --git a/todo.md b/todo.md
index b0e8d5c..318ee6b 100644
--- a/todo.md
+++ b/todo.md
@@ -248,3 +248,36 @@
 - [x] 前端：支付状态轮询（每 5 秒查询订单状态）
 - [ ] 获取商户账号后填入密钥并进行真实支付测试
 - [ ] 构建部署到 AI 服务器并同步 Git 库
+
+## v18 跨链桥独立域名 trc-ico.newassetchain.io
+
+- [ ] 分析当前 Bridge 路由和 Nginx 配置
+- [ ] 前端：访问 trc-ico.newassetchain.io 时直接显示 Bridge 页面
+- [ ] 服务器：配置 Nginx trc-ico.newassetchain.io 反向代理
+- [ ] 构建部署并验证域名访问
+- [ ] 同步 Gitea
+
+## v18 三域名配置
+
+- [ ] 前端：hostname 检测，trc-ico.newassetchain.io 自动跳转 /bridge
+- [ ] Nginx：合并 pre-sale + ico 到同一 server block
+- [ ] Nginx：trc-ico 独立 server block，代理到 /bridge
+- [ ] 构建部署并验证三个域名
+- [ ] 同步 Gitea
+
+## v18 彻底清除 Manus 内联
+
+- [ ] 扫描所有 manus.im / manus.computer / manus.space 来源
+- [ ] 清除 const.ts 中 OAuth manus.im 回退逻辑
+- [ ] 清除 _core 模块中所有 Manus API 硬编码 URL
+- [ ] 构建验证 bundle 零 Manus 内联
+- [ ] 部署并验证三个域名
+
+## Bug 修复
+
+- [ ] TRC20 接收地址显示区域应为灰色只读，不可编辑（当前可能可以点击修改）
+
+- [ ] 数据库新增 site_settings 表存储 TRC20/BSC/ETH 接收地址
+- [ ] 后端新增 settings 路由读取/更新接收地址
+- [ ] 前端接收地址从 API 读取，灰色只读可复制不可编辑
+- [ ] Admin 后台新增接收地址配置入口