✨ NFC Gold Card — The Elegant, Secure Hardware Wallet in Your Hand
Small Card. Big Security. The NFC Gold Card combines premium metal design with an integrated secure element, keeping your private keys safe, signing transactions directly on the card, and protecting your digital assets from online threats.

🔐 Enterprise-Grade Security
• Private key stays inside the card — never leaves the hardware.
• On-card signing: every transaction or smart contract signature is processed within the card, isolated from potential malware.
• PIN / physical verification adds an extra layer of safety if the card is lost or stolen.

⚡ Instant & Effortless Interaction
• Tap & Sign: use NFC to connect and sign instantly with compatible phones.
• Works seamlessly with web front-end (JS) or mobile apps.
• Compact, durable, and designed for both style and convenience.

🔧 How It Works — 3 Simple Steps
1. Prepare your transaction — frontend generates an unsignedTx.
2. Tap your Gold Card — the card signs the transaction hash securely.
3. Broadcast — frontend rebuilds and sends the signed transaction to the blockchain.

🎯 Why Choose the NFC Gold Card?
+Top-tier security for professionals and enterprises.
+Premium feel: metal body with gold finish for a refined, modern look.
+Versatile use: ideal for smart contract signing, crypto custody, and digital ID authentication.