/* CSS cho trang j88 */
    :root {
      --page-j88-primary-color: #ffcc00; /* Màu vàng Gold */
      --page-j88-secondary-color: #333333; /* Màu xám đậm */
      --page-j88-accent-color: #e44d26; /* Màu cam */
      --page-j88-text-light: #ffffff;
      --page-j88-text-dark: #333333;
      --page-j88-bg-dark: #1a1a1a; /* Nền tối */
      --page-j88-bg-light: #f5f5f5; /* Nền sáng */
    }

    .page-j88 {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: var(--page-j88-text-dark);
      line-height: 1.6;
      background-color: var(--page-j88-bg-light);
    }

    .page-j88-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 15px;
    }

    /* Banner Section */
    .page-j88-hero {
      position: relative;
      text-align: center;
      color: var(--page-j88-text-light);
      overflow: hidden;
      margin-bottom: 20px;
    }

    .page-j88-hero-banner {
      width: 100%;
      height: 250px; /* Chiều cao cố định cho banner trên di động */
      object-fit: cover;
      display: block;
    }

    .page-j88-hero-content {
      position: absolute;
      bottom: 0; /* Đặt nội dung ở dưới banner */
      left: 0;
      right: 0;
      padding: 15px;
      background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
      text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    }

    .page-j88-hero h1 {
      font-size: 2.2em;
      margin-bottom: 10px;
      color: var(--page-j88-primary-color);
      text-transform: uppercase;
      line-height: 1.2;
    }

    .page-j88-hero p {
      font-size: 1.1em;
      margin-bottom: 15px;
    }

    /* Floating Login Button */
    .page-j88-floating-btn {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-j88-accent-color);
      color: var(--page-j88-text-light);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 10px rgba(0,0,0,0.3);
      z-index: 1000;
      transition: background-color 0.3s ease;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .page-j88-floating-btn:hover {
      background-color: #c93a1e;
    }
    
    .page-j88-floating-btn span {
        display: none; /* Ẩn icon trên di động */
    }

    /* Game Categories */
    .page-j88-section-title {
      text-align: center;
      font-size: 2em;
      color: var(--page-j88-secondary-color);
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-j88-section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-j88-primary-color);
      border-radius: 2px;
    }

    .page-j88-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); /* 3 cột trên di động, 4-5 trên desktop */
      gap: 15px;
      margin-bottom: 40px;
    }

    .page-j88-game-card {
      background-color: var(--page-j88-text-light);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0,0,0,0.08);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .page-j88-game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0,0,0,0.15);
    }

    .page-j88-game-card img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
    }

    .page-j88-game-card h3 {
      font-size: 1.1em;
      color: var(--page-j88-secondary-color);
      padding: 10px;
      margin: 0;
    }
    
    .page-j88-game-card a {
        text-decoration: none;
        color: inherit;
    }

    /* Promotions Section */
    .page-j88-promotions {
      background-color: var(--page-j88-bg-dark);
      color: var(--page-j88-text-light);
      padding: 40px 0;
      margin-bottom: 40px;
    }

    .page-j88-promotions .page-j88-section-title {
      color: var(--page-j88-primary-color);
    }

    .page-j88-promo-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
    }

    .page-j88-promo-card {
      background-color: #2a2a2a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0,0,0,0.2);
      text-align: left;
      display: flex;
      flex-direction: column;
      color: var(--page-j88-text-light);
    }

    .page-j88-promo-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }

    .page-j88-promo-content {
      padding: 15px;
      flex-grow: 1;
    }

    .page-j88-promo-content h3 {
      font-size: 1.3em;
      color: var(--page-j88-primary-color);
      margin-bottom: 10px;
    }

    .page-j88-promo-content p {
      font-size: 0.95em;
      margin-bottom: 15px;
    }

    .page-j88-promo-btn {
      display: inline-block;
      background-color: var(--page-j88-accent-color);
      color: var(--page-j88-text-light);
      padding: 8px 15px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-j88-promo-btn:hover {
      background-color: #c93a1e;
    }

    /* About J88 / Info Section */
    .page-j88-about {
      padding: 30px 0;
      background-color: var(--page-j88-bg-light);
    }

    .page-j88-about h2 {
      color: var(--page-j88-secondary-color);
      margin-bottom: 20px;
    }

    .page-j88-about p {
      margin-bottom: 15px;
      color: var(--page-j88-text-dark);
    }

    .page-j88-list {
      list-style: disc;
      padding-left: 25px;
      margin-bottom: 20px;
      color: var(--page-j88-text-dark);
    }

    .page-j88-list li {
      margin-bottom: 8px;
    }
    
    .page-j88-list li strong {
        color: var(--page-j88-accent-color);
    }

    /* FAQ Section */
    .page-j88-faq {
      padding: 30px 0;
      background-color: var(--page-j88-bg-dark);
      color: var(--page-j88-text-light);
    }

    .page-j88-faq .page-j88-section-title {
      color: var(--page-j88-primary-color);
    }

    .page-j88-faq-item {
      margin-bottom: 15px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      padding-bottom: 10px;
    }

    .page-j88-faq-question {
      font-weight: bold;
      color: var(--page-j88-primary-color);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 0;
    }

    .page-j88-faq-question span {
      font-size: 1.2em;
    }

    .page-j88-faq-answer {
      display: none;
      padding-top: 5px;
      color: var(--page-j88-text-light);
      font-size: 0.95em;
    }

    .page-j88-faq-answer.active {
      display: block;
    }

    /* Responsive adjustments */
    @media (min-width: 768px) {
      .page-j88-hero-banner {
        height: 400px; /* Chiều cao lớn hơn cho desktop */
      }

      .page-j88-hero h1 {
        font-size: 3.5em;
      }

      .page-j88-hero p {
        font-size: 1.3em;
      }

      .page-j88-floating-btn {
        padding: 15px 30px;
        font-size: 1.2em;
      }
      
      .page-j88-floating-btn span {
        display: inline-block; /* Hiện icon trên desktop */
      }

      .page-j88-game-grid {
        grid-template-columns: repeat(4, 1fr); /* 4 cột trên desktop */
      }

      .page-j88-game-card img {
        height: 150px;
      }

      .page-j88-promo-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 cột trên desktop */
      }

      .page-j88-promo-card {
        flex-direction: row;
        text-align: left;
      }

      .page-j88-promo-card img {
        width: 40%;
        height: auto;
      }

      .page-j88-promo-content {
        padding: 20px;
        width: 60%;
      }
    }

    @media (min-width: 1024px) {
      .page-j88-game-grid {
        grid-template-columns: repeat(5, 1fr); /* 5 cột trên màn hình lớn hơn */
      }
      .page-j88-promo-grid {
        grid-template-columns: repeat(3, 1fr); /* 3 cột trên màn hình lớn hơn */
      }
    }