html, body {
      height: 100%;
      margin: 0;
      padding: 0;
      background-color: #0d1117; 
    }

body {
      margin: 0;
      padding: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: #0d1117;
      color: #f0f6fc;
      line-height: 1.7;
    }


    .container {
      max-width: 800px;
      margin: 0 auto;
      padding: 2rem 1rem;
      text-align: left;
    }

    .logo {
      max-width: 200px;
      display: block;
      margin: 0 auto 1.5rem;
    }

    .banner {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto 1.5rem;
      border-radius: 12px;
    }

    .nav {
      display: flex;
      justify-content: center;
      gap: 1rem;
      margin-bottom: 2rem;
    }
    .nav a {
      padding: 0.5rem 1rem;
      background-color: #161b22;
      border-radius: 8px;
      text-decoration: none;
      color: #f0f6fc;
      font-weight: bold;
      transition: background-color 0.3s, transform 0.2s;
    }
    .nav a:hover {
      background-color: #238636;
      transform: translateY(-2px);
    }

    h1 {
      font-size: 2rem;
      margin-bottom: 1rem;
      color: #58a6ff;
      text-align: center;
    }

    h2 {
      margin-top: 2rem;
      font-size: 1.4rem;
      color: #c792ea;
      text-align: left;
    }

    p {
      font-size: 1.1rem;
      margin-bottom: 1.5rem;
    }

    ul, ol {
      text-align: left;
      padding-left: 1.2rem;
    }

    li {
      margin-bottom: 0.5rem;
      text-align: left;
    }

    .button {
      display: inline-block;
      background-color: #238636;
      color: #fff;
      padding: 0.5rem 1rem;
      border: none;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      margin-top: 0.5rem;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s, transform 0.2s;
      cursor: pointer;
    }

    .button:hover {
      background-color: #2ea043;
      transform: translateY(-2px);
    }

    .footer {
      margin-top: 2rem;
      font-size: 0.9rem;
      color: #8b949e;
      text-align: center;
    }

    a {
      color: #58a6ff;
      text-decoration: none;
    }

    a:hover {
      text-decoration: underline;
    }

    .wallets {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      margin-top: 2rem;
    }

    .card {
      background-color: #161b22;
      padding: 16px;
      border-radius: 12px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.4);
      text-align: center;
    }

    .qrcode {
      margin: 0 auto 12px auto;
      width: 160px;
      height: 160px;
    }

    .network {
    font-size: 0.8rem;
    color: #c9d1d9;
    margin-bottom: 8px;
    }


    .address {
      font-size: 0.85rem;
      word-break: break-all;
      margin-bottom: 8px;
      color: #8b949e;
    }