body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    background-color: #f4f4f4;
    color: #222;
  }

  .campaign-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    background-color: #fff;
    text-align: center;
    paddin-bottom: 65px;
  }

  .campaign-container h1 {
    color: #c1272d;
    font-size: 26px;
    font-weight: 900;
    margin-bottom: 20px;
    text-transform: uppercase;
  }

  .campaign-container p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 12px;
  }

  .campaign-container ul {
    list-style: none;
    padding: 0;
    margin: 20px 0;
  }

  .campaign-container ul li {
    text-align: left;
    font-size: 16px;
    margin: 10px 0;
    position: relative;
    padding-left: 24px;
  }

  .campaign-container ul li::before {
    content: "✅";
    position: absolute;
    left: 0;
    color: green;
  }

  .highlight {
    font-weight: bold;
    color: #c1272d;
    font-size: 18px;
    margin-top: 15px;
  }

  .cta-button {
    display: inline-block;
    margin-top: 30px;
    padding: 15px 25px;
    background-color: #0084ff;
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
    border-radius: 8px;
    transition: background 0.3s;
  }

  .cta-button:hover {
    background-color: #0066cc;
  }

  @media screen and (max-width: 600px) {
    .campaign-container h1 {
      font-size: 22px;
    }

    .campaign-container p,
    .campaign-container ul li {
      font-size: 15px;
    }
  }
  .campaign-image {
    max-width: 100%;
    height: auto;
    margin-top: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  /* nút liên hệ */
.floating-contact {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
  }
  
  .circle-button {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
    text-decoration: none;
  }
  
  .circle-button:hover {
    transform: scale(1.1);
  }
  
  .call {
    background-color: #e53935;
  }
  
  .messenger {
    background-color: #0078ff;
  }
  
  .facebook {
    background-color: #1877f2;
  }
  
  .map {
    background-color: #fdd835;
    color: #000;
  }