/* Tổng quan */
    body {
      font-family: 'Arial', sans-serif;
      background-color: #000000; /* Nền đen */
      color: #FFFFFF; /* Chữ trắng */
      margin: 0;
      padding: 0;
      line-height: 1.6;
      font-size: 16px;
    }

    .page-co88 {
      max-width: 100%;
      margin: 0 auto;
      overflow-x: hidden;
    }

    .page-co88__section {
      padding: 20px 15px;
      margin-bottom: 20px;
      text-align: center;
    }

    .page-co88__section-title {
      font-size: 2.2em;
      color: #FFD700; /* Vàng */
      margin-bottom: 20px;
      font-weight: bold;
      text-transform: uppercase;
    }

    .page-co88__section-subtitle {
      font-size: 1.2em;
      color: #FFF;
      margin-bottom: 30px;
    }

    .page-co88__text {
      color: #E0E0E0;
      margin-bottom: 15px;
      text-align: justify;
    }

    /* Hero Section */
    .page-co88__hero-section {
      background-color: #1a1a1a;
      padding-top: 180px; /* An toàn cho thanh điều hướng cố định trên di động */
      position: relative;
      overflow: hidden;
    }

    .page-co88__hero-image {
      width: 100%;
      height: auto;
      max-width: 100%;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
    }

    .page-co88__hero-content {
      padding: 20px 15px;
      position: relative;
      z-index: 1;
    }

    .page-co88__hero-title {
      font-size: 2.5em;
      color: #FFD700;
      margin-top: 20px;
      margin-bottom: 10px;
      line-height: 1.2;
      font-weight: bold;
      text-transform: uppercase;
    }

    .page-co88__hero-description {
      font-size: 1.1em;
      color: #FFFFFF;
      margin-bottom: 25px;
    }

    .page-co88__cta-button {
      display: inline-block;
      background-color: #FFD700;
      color: #000000;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
    }

    .page-co88__cta-button:hover {
      background-color: #e6c200;
      transform: translateY(-3px);
    }

    /* Floating Login Button */
    .page-co88__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #FF4500; /* Màu cam nổi bật */
      color: #FFFFFF;
      padding: 15px 25px;
      border-radius: 50px;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 15px rgba(255, 69, 0, 0.6);
      z-index: 1000;
      cursor: pointer;
      text-align: center;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .page-co88__floating-button:hover {
      background-color: #cc3700;
      transform: translateY(-3px);
    }

    .page-co88__floating-button-icon {
      font-size: 1.2em;
    }

    /* Game Categories */
    .page-co88__game-categories {
      background-color: #0d0d0d;
    }

    .page-co88__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-co88__game-card {
      background-color: #1a1a1a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      padding: 15px;
    }

    .page-co88__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(255, 215, 0, 0.3);
    }

    .page-co88__game-image {
      width: 100%;
      height: 120px; /* Fixed height for consistency */
      object-fit: cover;
      border-radius: 8px;
      margin-bottom: 10px;
      max-width: 100%;
    }

    .page-co88__game-title {
      font-size: 1.1em;
      color: #FFD700;
      font-weight: bold;
      margin-bottom: 5px;
    }

    .page-co88__game-description {
      font-size: 0.9em;
      color: #E0E0E0;
    }

    /* Promotions Section */
    .page-co88__promotions {
      background-color: #000000;
    }

    .page-co88__promotion-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-co88__promotion-item {
      background-color: #1a1a1a;
      border-radius: 10px;
      padding: 20px;
      text-align: left;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      position: relative;
      overflow: hidden;
      box-sizing: border-box; /* Important for list items */
      width: 100%; /* Important for list items */
      max-width: 100%; /* Important for list items */
      margin-left: 0; /* Important for list items */
      margin-right: 0; /* Important for list items */
      word-wrap: break-word !important; /* Important for list items */
    }

    .page-co88__promotion-item::before {
      content: '🔥';
      position: absolute;
      top: 15px;
      left: 15px;
      font-size: 1.5em;
    }

    .page-co88__promotion-title {
      font-size: 1.4em;
      color: #FFD700;
      margin-bottom: 10px;
      padding-left: 40px; /* Space for emoji */
    }

    .page-co88__promotion-text {
      color: #E0E0E0;
      padding-left: 40px; /* Space for emoji */
    }

    /* Game Providers Section */
    .page-co88__providers {
      background-color: #0d0d0d;
    }

    .page-co88__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 15px;
      margin-top: 30px;
    }

    .page-co88__provider-logo {
      width: 100%;
      height: 80px; /* Adjust height as needed for logos */
      object-fit: contain;
      background-color: #2a2a2a;
      border-radius: 8px;
      padding: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease;
      max-width: 100%;
    }

    .page-co88__provider-logo:hover {
      transform: scale(1.05);
    }

    /* FAQ Section */
    .page-co88__faq-section {
      background-color: #000000;
      text-align: left;
    }

    .page-co88__faq-item {
      background-color: #1a1a1a;
      margin-bottom: 10px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      box-sizing: border-box; /* Important for list items */
      width: 100%; /* Important for list items */
      max-width: 100%; /* Important for list items */
      margin-left: 0; /* Important for list items */
      margin-right: 0; /* Important for list items */
      word-wrap: break-word !important; /* Important for list items */
    }

    .page-co88__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #2a2a2a;
      color: #FFD700;
      font-weight: bold;
      font-size: 1.1em;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-co88__faq-question:hover {
      background-color: #3a3a3a;
    }

    .page-co88__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      color: #FFD700;
      pointer-events: none; /* Prevent h3 from capturing click */
    }

    .page-co88__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: 10px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from capturing click */
    }

    .page-co88__faq-item.active .page-co88__faq-toggle {
      transform: rotate(45deg);
    }

    .page-co88__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      color: #E0E0E0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      text-align: justify;
    }

    .page-co88__faq-item.active .page-co88__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Final CTA */
    .page-co88__final-cta {
      background-color: #1a1a1a;
      padding: 40px 15px;
    }

    .page-co88__final-cta-title {
      font-size: 2em;
      color: #FFD700;
      margin-bottom: 15px;
    }

    .page-co88__final-cta-text {
      font-size: 1.1em;
      color: #E0E0E0;
      margin-bottom: 25px;
    }

    .page-co88__final-cta-button {
      background-color: #007bff; /* Màu xanh dương */
      color: #FFFFFF;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 123, 255, 0.4);
    }

    .page-co88__final-cta-button:hover {
      background-color: #0056b3;
      transform: translateY(-3px);
    }

    /* Responsive adjustments */
    @media (min-width: 769px) {
      .page-co88__hero-section {
        padding-top: 10px; /* An toàn cho thanh điều hướng cố định trên desktop */
      }

      .page-co88__hero-title {
        font-size: 3.5em;
      }

      .page-co88__hero-description {
        font-size: 1.3em;
      }

      .page-co88__section {
        padding: 40px 50px;
      }

      .page-co88__section-title {
        font-size: 2.8em;
      }

      .page-co88__game-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 1000px;
        margin-left: auto;
        margin-right: auto;
      }

      .page-co88__provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        max-width: 1000px;
        margin-left: auto;
        margin-right: auto;
      }

      .page-co88__promotion-list {
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
      }

      .page-co88__faq-item {
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
      }

      .page-co88__final-cta {
        padding: 60px 50px;
      }
    }

    @media (max-width: 768px) {
      .page-co88__hero-section {
        padding-top: 180px; /* An toàn cho thanh điều hướng cố định trên di động */
      }
      .page-co88__hero-title {
        font-size: 2em;
      }
      .page-co88__hero-description {
        font-size: 1em;
      }
      .page-co88__section-title {
        font-size: 2em;
      }
      .page-co88__game-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .page-co88__game-card {
        padding: 10px;
      }
      .page-co88__game-image {
        height: 100px;
      }
      .page-co88__game-title {
        font-size: 1em;
      }
      .page-co88__game-description {
        font-size: 0.85em;
      }
      .page-co88__promotion-item {
        padding: 15px;
      }
      .page-co88__promotion-title {
        font-size: 1.2em;
        padding-left: 35px;
      }
      .page-co88__promotion-text {
        font-size: 0.9em;
        padding-left: 35px;
      }
      .page-co88__provider-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .page-co88__provider-logo {
        height: 60px;
        padding: 5px;
      }
      .page-co88__faq-question {
        padding: 12px 15px;
        font-size: 1em;
      }
      .page-co88__faq-question h3 {
        font-size: 1em;
      }
      .page-co88__faq-answer {
        padding: 15px 15px !important;
        font-size: 0.95em;
      }
      .page-co88__floating-button {
        padding: 12px 20px;
        font-size: 1em;
        bottom: 15px;
        right: 15px;
      }

      /* Responsive list item adjustments */
      .page-co88__promotion-list,
      .page-co88__faq-section {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-co88__promotion-item,
      .page-co88__faq-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }

      .page-co88__game-image,
      .page-co88__provider-logo {
        max-width: 100% !important;
        height: auto !important; /* Ensure images scale */
        box-sizing: border-box !important;
      }
    }