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profile/README.md

@@ -4,13 +4,19 @@
 
 ## Products
 
-### Connect Service
+### Smart Wallet-as-a-Service
+
+Particle Network's [Smart Wallet-as-a-Service](https://developers.particle.network/docs/understanding-wallet-as-a-service) is a collection of technologies and services that facilitate AA-enabled social logins (on-chain smart account creation derived from social accounts) and interaction through application-specific embedded wallet interfaces.
+
+These technologies and services are as follows.
+
+#### Connect Service
 
 **Particle Connect** is the SSO for web3. We help you onboard both Web2 & Web3 users **seamlessly, securely & user-friendly.**
 
 [👉 Learn more about Particle Connect](https://developers.particle.network/docs/building-with-particle-connect)
 
-### Auth Service
+#### Auth Service
 
 **Particle Auth** provides MPC (Multi-Party Computation)-based threshold signatures.
 
@@ -24,30 +30,36 @@ With Particle Auth integrated into your dApp, users can log in within seconds. B
 
 [👉 Learn more about Particle Auth](https://developers.particle.network/docs/building-with-particle-auth)
 
-### BTC Connect
-
-**BTC Connect** is the first account abstraction protocol for the Bitcoin ecosystem.
-
-BTC Connect implements a smart account, Paymaster, Bundler, and unique Bitcoin-specific modal for unified utilization of smart accounts on supported EVM chains (such as Merlin, BEVM, bSquared) through the means of native Bitcoin wallets (such as UniSat, Xverse, etc.).
-
-[👉 Learn more about BTC Connect](https://developers.particle.network/reference/introduction-to-btc-connect)
-
-### Wallet Service
+#### Wallet Service
 
 **Particle Wallet** provides a one-stop wallet solution, which is easy to use but powerful and safe.
 
 We've included detailed designs in our wallet service to create the ultimate user experience. By integrating Particle Wallet with a one-line code, we help you provide users with token and NFT-related functions, transaction and payment processes, as well as other operations to deliver a first-class user experience.
 
 👉[ Learn more about Particle Wallet](https://developers.particle.network/docs/building-with-particle-wallet)
 
-### Node Service
+#### Node Service
 
 **Particle Node** provides a robust, secure, and highly available blockchain API.
 
 Not only do we have JSON-RPC support, but also enhanced API. This allows you to receive transaction information and NFTs through addresses, obtain token prices, smartly encode/decode transactions, and more. Compared to other node services, you develop your dApp faster while also ensuring that it performs better.
 
 [👉 Learn more about Particle Node](https://developers.particle.network/docs/rpc-nodes)
 
+## BTC Connect
+
+**BTC Connect** is the first account abstraction protocol for the Bitcoin ecosystem.
+
+BTC Connect implements a smart account, Paymaster, Bundler, and unique Bitcoin-specific modal for unified utilization of smart accounts on supported EVM chains (such as Merlin, BEVM, bSquared) through the means of native Bitcoin wallets (such as UniSat, Xverse, etc.).
+
+[👉 Learn more about BTC Connect](https://developers.particle.network/reference/introduction-to-btc-connect)
+
+## Universal Accounts
+
+Powered by Particle Network's Modular L1, Universal Accounts enable true chain abstraction by providing users with a single address, balance, and interaction point for the multi-chain Web3 ecosystem. This removes the need for manual bridging or multi-chain management.
+
+[👉 Learn more about Universal Accounts](https://developers.particle.network/docs/universal-accounts)
+
 ## SDKs
 
 We support [Android, iOS, Web, Unity, Flutter and React Native](https://github.com/particle-network) now. The other platforms' SDK are in development and will launch soon.