* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: #f0f2f5;
      color: #333;
      line-height: 1.6;
      min-height: 100vh;
    }

    .container {
      max-width: 900px;
      margin: 40px auto;
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 12px rgba(0,0,0,0.08);
      overflow: hidden;
    }

    
    .logo-area {
      text-align: center;
      padding: 40px 20px 20px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      text-decoration: none;
      cursor: pointer;
    }

    .logo-bubble {
      background: #00a0e3;
      color: white;
      font-weight: 700;
      font-size: 28px;
      letter-spacing: 1px;
      padding: 12px 18px 12px 22px;
      border-radius: 40px 40px 40px 8px;
      position: relative;
      display: inline-block;
    }

    .logo-bubble::after {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 18px;
      width: 0;
      height: 0;
      border-left: 10px solid transparent;
      border-right: 10px solid transparent;
      border-top: 12px solid #00a0e3;
    }

    .logo-text {
      color: #00a0e3;
      font-weight: 700;
      font-size: 36px;
      letter-spacing: 1px;
    }

    
    nav {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 4px;
      padding: 0 20px 20px;
      border-bottom: 1px solid #e8e8e8;
    }

    nav a {
      color: #00a0e3;
      text-decoration: none;
      padding: 8px 14px;
      font-size: 15px;
      border-radius: 4px;
      transition: background 0.2s, color 0.2s;
      cursor: pointer;
    }

    nav a:hover {
      background: #e8f6fc;
    }

    nav a.active {
      background: #00a0e3;
      color: white;
    }

    
    .content {
      padding: 30px 40px 50px;
      min-height: 320px;
    }

    .panel {
      display: none;
    }

    .panel.active {
      display: block;
    }

    h1 {
      font-size: 28px;
      font-weight: 600;
      color: #222;
      margin-bottom: 16px;
      padding-bottom: 12px;
      border-bottom: 1px solid #e8e8e8;
    }

    p {
      margin-bottom: 18px;
      font-size: 15.5px;
      color: #444;
    }

    a {
      color: #00a0e3;
      text-decoration: none;
    }

    a:hover {
      text-decoration: underline;
    }

    hr {
      border: none;
      border-top: 1px solid #e8e8e8;
      margin: 24px 0;
    }

    h2 {
      font-size: 18px;
      font-weight: 600;
      color: #222;
      margin-bottom: 10px;
    }

    ul {
      margin: 12px 0 18px 24px;
      color: #444;
    }

    ul li {
      margin-bottom: 8px;
    }

    .donate-box {
      text-align: center;
      margin-top: 30px;
      padding: 20px;
    }

    .donate-box .warning {
      color: #d32f2f;
      font-weight: 500;
      margin-bottom: 12px;
    }

    .donate-link {
      display: inline-block;
      font-size: 22px;
      font-weight: 600;
      color: #00a0e3;
      margin-top: 8px;
    }

    .info-box {
      background: #f8fafc;
      border-left: 4px solid #00a0e3;
      padding: 14px 18px;
      margin: 18px 0;
      border-radius: 0 6px 6px 0;
    }
    
    .iframe-wrapper {
  margin: 20px 0;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  overflow: hidden;
  background: #f8f8f8;
}

.iframe-wrapper iframe {
  display: block;
  width: 100%;
  min-height: 650px;
  border: none;
}

    /* Footer */
    footer {
      text-align: center;
      padding: 20px;
      font-size: 13px;
      color: #888;
      border-top: 1px solid #e8e8e8;
    }

    footer a {
      color: #00a0e3;
      cursor: pointer;
    }

    /* Responsive */
    @media (max-width: 640px) {
      .container {
        margin: 10px;
        border-radius: 4px;
      }
      .content {
        padding: 20px;
      }
      .logo-bubble {
        font-size: 22px;
        padding: 10px 14px 10px 18px;
      }
      .logo-text {
        font-size: 28px;
      }
      nav a {
        font-size: 14px;
        padding: 6px 10px;
      }
    }