/* CSS cho trang 8day */
    .page-8day {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f8f8;
      padding-bottom: 80px; /* Khoảng trống cho nút nổi */
    }

    .page-8day__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    /* Phần Hero */
    .page-8day__hero-section {
      position: relative;
      background: linear-gradient(135deg, #0f0f0f, #222222);
      color: #fff;
      text-align: center;
      padding: 10px 0 40px; /* Điều chỉnh padding-top cho header cố định */
      overflow: hidden;
      border-radius: 0 0 15px 15px;
      margin-bottom: 40px;
    }

    .page-8day__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
      margin-bottom: 30px;
    }

    .page-8day__hero-content {
      padding: 0 20px;
    }

    .page-8day__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: #ffd700;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-8day__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #e0e0e0;
    }

    .page-8day__cta-button {
      display: inline-block;
      background-color: #ff4500;
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      border: none;
      cursor: pointer;
    }

    .page-8day__cta-button:hover {
      background-color: #e03c00;
      transform: translateY(-2px);
    }

    /* Nút đăng nhập nổi */
    .page-8day__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: #007bff;
      color: #fff;
      padding: 15px 25px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      z-index: 1000;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      display: flex;
      align-items: center;
      gap: 10px;
      transition: background-color 0.3s ease, transform 0.2s ease;
      animation: page-8day__pulse 2s infinite;
      border: none;
      cursor: pointer;
    }

    .page-8day__floating-button:hover {
      background-color: #0056b3;
      transform: translateX(-50%) translateY(-3px);
    }

    .page-8day__floating-button-icon {
      font-size: 1.5em;
    }

    @keyframes page-8day__pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.03); }
      100% { transform: translateX(-50%) scale(1); }
    }

    /* Định dạng phần chung */
    .page-8day__section {
      background-color: #fff;
      padding: 40px 20px;
      margin-bottom: 30px;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-8day__section-title {
      font-size: 2.2em;
      color: #007bff;
      text-align: center;
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-8day__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: #ffd700;
      border-radius: 2px;
    }

    .page-8day__content-text {
      font-size: 1.1em;
      margin-bottom: 20px;
      text-align: justify;
    }

    /* Lưới trò chơi */
    .page-8day__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-8day__game-card {
      background-color: #f0f8ff;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-8day__game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-8day__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      border-bottom: 3px solid #007bff;
    }

    .page-8day__game-card-title {
      font-size: 1.4em;
      color: #007bff;
      padding: 15px 10px 5px;
      margin: 0;
    }

    .page-8day__game-card-description {
      font-size: 0.95em;
      color: #555;
      padding: 0 15px 15px;
      flex-grow: 1;
    }

    /* Danh sách khuyến mãi */
    .page-8day__promotion-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
    }

    .page-8day__promotion-item {
      background-color: #e6f7ff;
      border-left: 5px solid #007bff;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      display: flex;
      align-items: flex-start;
      gap: 15px;
    }

    .page-8day__promotion-icon {
      font-size: 2em;
      color: #007bff;
      flex-shrink: 0;
    }

    .page-8day__promotion-content h3 {
      margin-top: 0;
      color: #007bff;
      font-size: 1.3em;
    }

    .page-8day__promotion-content p {
      margin-bottom: 0;
      color: #444;
    }

    /* Các bước hướng dẫn */
    .page-8day__guide-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-top: 30px;
    }

    .page-8day__guide-step {
      background-color: #f9f9f9;
      border: 1px solid #ddd;
      border-radius: 10px;
      padding: 25px;
      text-align: center;
      flex: 1 1 300px;
      max-width: 350px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      position: relative;
    }

    .page-8day__guide-step:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.12);
    }

    .page-8day__step-number {
      position: absolute;
      top: -15px;
      left: 50%;
      transform: translateX(-50%);
      background-color: #007bff;
      color: #fff;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4em;
      font-weight: bold;
      border: 3px solid #fff;
    }

    .page-8day__guide-step h3 {
      margin-top: 20px;
      color: #007bff;
      font-size: 1.5em;
    }

    .page-8day__guide-step p {
      color: #555;
      font-size: 1em;
    }

    /* Phần FAQ */
    .page-8day__faq-section {
      background-color: #fefefe;
      padding: 40px 20px;
      margin-bottom: 30px;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-8day__faq-item {
      border: 1px solid #eee;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      background-color: #fff;
      box-shadow: 0 1px 5px rgba(0, 0, 0, 0.03);
    }

    .page-8day__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      background-color: #f0f8ff;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-8day__faq-question:hover {
      background-color: #e0f0ff;
    }

    .page-8day__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: #333;
      pointer-events: none; /* Ngăn h3 chặn sự kiện click */
    }

    .page-8day__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: #007bff;
      pointer-events: none; /* Ngăn span chặn sự kiện click */
      transition: transform 0.3s ease;
    }

    .page-8day__faq-item.active .page-8day__faq-toggle {
      transform: rotate(45deg); /* Thay đổi + thành X hoặc - */
    }

    .page-8day__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: #fdfdfd;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: #555;
    }

    .page-8day__faq-item.active .page-8day__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa nội dung */
      padding: 20px !important; /* Sử dụng !important theo yêu cầu */
      opacity: 1;
    }

    .page-8day__faq-answer p {
      margin-top: 0;
      margin-bottom: 10px;
    }
    .page-8day__faq-answer ul {
        padding-left: 20px;
        margin-top: 0;
    }
    .page-8day__faq-answer li {
        margin-bottom: 5px;
    }

    /* Điều chỉnh responsive chung */
    @media (max-width: 768px) {
      .page-8day__container {
        padding: 15px;
      }

      .page-8day__hero-section {
        padding-top: 10px; /* padding-top di động cho header cố định */
      }

      .page-8day__hero-title {
        font-size: 2em;
      }

      .page-8day__hero-subtitle {
        font-size: 1.1em;
      }

      .page-8day__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-8day__section {
        padding: 25px 15px;
        margin-bottom: 20px;
      }

      .page-8day__section-title {
        font-size: 1.8em;
        margin-bottom: 25px;
      }

      .page-8day__content-text {
        font-size: 1em;
      }

      .page-8day__game-grid {
        grid-template-columns: 1fr; /* Một cột cho trò chơi trên di động */
        gap: 20px;
      }

      .page-8day__game-card-image {
        height: 180px;
      }

      .page-8day__game-card-title {
        font-size: 1.3em;
      }

      .page-8day__promotion-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 15px;
      }

      .page-8day__promotion-icon {
        margin-bottom: 10px;
      }

      .page-8day__guide-steps {
        flex-direction: column;
        gap: 20px;
      }

      .page-8day__guide-step {
        max-width: 100%;
      }

      .page-8day__floating-button {
        width: calc(100% - 40px);
        bottom: 15px;
        padding: 12px 20px;
        font-size: 1em;
        left: 50%;
        transform: translateX(-50%);
        box-sizing: border-box !important;
      }

      .page-8day__faq-question {
        padding: 15px;
      }

      .page-8day__faq-question h3 {
        font-size: 1.1em;
      }

      .page-8day__faq-answer {
        padding: 0 15px;
      }
      .page-8day__faq-item.active .page-8day__faq-answer {
        padding: 15px !important;
      }

      /* Yêu cầu responsive cụ thể cho các mục danh sách */
      .page-8day__promotion-list,
      .page-8day__guide-steps {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-8day__promotion-item,
      .page-8day__guide-step {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
    }

    @media (max-width: 480px) {
        .page-8day__hero-title {
            font-size: 1.8em;
        }
        .page-8day__hero-subtitle {
            font-size: 1em;
        }
        .page-8day__section-title {
            font-size: 1.6em;
        }
        .page-8day__game-card-title {
            font-size: 1.2em;
        }
        .page-8day__faq-question h3 {
            font-size: 1em;
        }
        .page-8day__floating-button {
            font-size: 0.9em;
            padding: 10px 15px;
            gap: 5px;
        }
        .page-8day__floating-button-icon {
            font-size: 1.2em;
        }
    }