:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:#f4f6f8;color:#1a2230}header{background:#1a2230;color:#fff;padding:16px 32px;display:flex;align-items:center;gap:12px}header .logo{width:28px;height:28px;border-radius:6px;background:linear-gradient(135deg,#6c8cff,#3ddc97)}header h1{font-size:18px;margin:0;font-weight:600}header nav{margin-left:auto;display:flex;gap:6px}header nav a{color:#cbd5e1;text-decoration:none;font-size:14px;padding:6px 12px;border-radius:6px}header nav a:hover{color:#fff;background:#ffffff14}header nav a[aria-current=page]{color:#fff;background:#ffffff1f}main{max-width:720px;margin:32px auto;padding:0 24px 120px}.card{background:#fff;border:1px solid #e3e8ef;border-radius:12px;padding:24px;margin-bottom:20px}.card h2{margin:0 0 4px;font-size:16px}.card p.sub{margin:0 0 20px;color:#64748b;font-size:13px}.card p.sub code{font-size:12px;background:#f1f5f9;padding:1px 5px;border-radius:4px}label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px}input,select{width:100%;padding:10px 12px;border:1px solid #cbd5e1;border-radius:8px;font-size:14px}.row{display:flex;gap:16px}.row>div{flex:1}button{padding:10px 18px;border:0;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer}.primary{background:#3b5bff;color:#fff}.ghost{background:#eef2ff;color:#3b5bff}.actions{display:flex;gap:12px;margin-top:20px}.toggle{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid #eef2f6}.toggle:last-child{border-bottom:0}.toggle input{width:auto}.balance{display:flex;align-items:baseline;justify-content:space-between;gap:16px}.balance .label{color:#64748b;font-size:13px}#balance{font-size:28px;font-weight:700;letter-spacing:-.01em}.try{margin:0;padding-left:20px;font-size:14px;line-height:1.5}.try li{margin:0 0 6px}.try li:last-child{margin-bottom:0}.card p.note{margin:14px 0 0;color:#64748b;font-size:13px}.card p.note code{font-size:12px;background:#f1f5f9;padding:1px 5px;border-radius:4px}