:root {
      --page-ww88-primary-color: #e44d26; /* Cam đỏ */
      --page-ww88-secondary-color: #333; /* Xám đậm */
      --page-ww88-accent-color: #007bff; /* Xanh dương */
      --page-ww88-background-light: #f8f9fa; /* Trắng xám nhạt */
      --page-ww88-background-dark: #212529; /* Đen xám đậm */
      --page-ww88-text-light: #fff; /* Trắng */
      --page-ww88-text-dark: #333; /* Xám đậm */
      --page-ww88-border-color: #dee2e6; /* Xám viền */
      --page-ww88-shadow-color: rgba(0, 0, 0, 0.1);
    }

    /* Base styles for the page content */
    .page-ww88 {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      line-height: 1.6;
      color: var(--page-ww88-text-dark);
      background-color: var(--page-ww88-background-light);
      padding-bottom: 80px; /* Space for fixed footer */
    }

    .page-ww88__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-ww88__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-ww88__section--dark {
      background-color: var(--page-ww88-background-dark);
      color: var(--page-ww88-text-light);
    }

    .page-ww88__section-title {
      font-size: 2.5em;
      margin-bottom: 30px;
      color: var(--page-ww88-primary-color);
      font-weight: 700;
    }

    .page-ww88__section--dark .page-ww88__section-title {
      color: var(--page-ww88-text-light);
    }

    .page-ww88__text-content {
      font-size: 1.1em;
      margin-bottom: 20px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Hero Section */
    .page-ww88__hero-section {
      background-color: var(--page-ww88-background-dark);
      color: var(--page-ww88-text-light);
      padding: 100px 0 60px; /* Adjusted padding-top for fixed header */
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .page-ww88__hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-ww88__hero-title {
      font-size: 3.5em;
      margin-bottom: 20px;
      font-weight: 900;
      color: var(--page-ww88-primary-color);
      line-height: 1.2;
    }

    .page-ww88__hero-subtitle {
      font-size: 1.5em;
      margin-bottom: 30px;
      font-weight: 300;
    }

    .page-ww88__hero-image {
      width: 100%;
      max-width: 800px;
      height: auto;
      border-radius: 15px;
      margin-top: 30px;
      box-shadow: 0 10px 30px var(--page-ww88-shadow-color);
    }

    /* Login/Register Floating Button */
    .page-ww88__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-ww88-primary-color);
      color: var(--page-ww88-text-light);
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.3s ease;
      animation: page-ww88__pulse 2s infinite;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .page-ww88__floating-button:hover {
      background-color: #c93d1f;
      transform: translateY(-3px);
    }

    @keyframes page-ww88__pulse {
      0% {
        transform: scale(1);
      }
      50% {
        transform: scale(1.05);
      }
      100% {
        transform: scale(1);
      }
    }

    /* Game Categories */
    .page-ww88__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-ww88__category-card {
      background-color: var(--page-ww88-text-light);
      border-radius: 10px;
      box-shadow: 0 4px 15px var(--page-ww88-shadow-color);
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-decoration: none;
      color: var(--page-ww88-text-dark);
    }

    .page-ww88__category-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    }

    .page-ww88__category-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-ww88__category-content {
      padding: 20px;
    }

    .page-ww88__category-title {
      font-size: 1.5em;
      margin-bottom: 10px;
      color: var(--page-ww88-primary-color);
      font-weight: 600;
    }

    .page-ww88__category-description {
      font-size: 0.95em;
      color: var(--page-ww88-secondary-color);
    }

    /* Game Providers */
    .page-ww88__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 40px;
    }

    .page-ww88__provider-logo {
      background-color: var(--page-ww88-text-light);
      padding: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 10px var(--page-ww88-shadow-color);
      display: flex;
      align-items: center;
      justify-content: center;
      height: 100px;
      transition: transform 0.3s ease;
    }

    .page-ww88__provider-logo:hover {
      transform: scale(1.05);
    }

    .page-ww88__provider-image {
      max-width: 100%;
      max-height: 70px;
      height: auto;
      display: block;
      object-fit: contain;
    }

    /* Promotions Section */
    .page-ww88__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-ww88__promo-card {
      background-color: var(--page-ww88-text-light);
      border-radius: 10px;
      box-shadow: 0 4px 15px var(--page-ww88-shadow-color);
      padding: 25px;
      text-align: left;
      transition: transform 0.3s ease;
    }

    .page-ww88__promo-card:hover {
      transform: translateY(-5px);
    }

    .page-ww88__promo-title {
      font-size: 1.8em;
      color: var(--page-ww88-primary-color);
      margin-bottom: 15px;
      font-weight: 700;
    }

    .page-ww88__promo-description {
      font-size: 1.05em;
      margin-bottom: 20px;
      color: var(--page-ww88-secondary-color);
    }

    .page-ww88__promo-button {
      display: inline-block;
      background-color: var(--page-ww88-accent-color);
      color: var(--page-ww88-text-light);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-ww88__promo-button:hover {
      background-color: #0056b3;
    }

    /* FAQ Section */
    .page-ww88__faq-list {
      max-width: 800px;
      margin: 40px auto 0;
      text-align: left;
    }

    .page-ww88__faq-item {
      background-color: var(--page-ww88-text-light);
      border: 1px solid var(--page-ww88-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-ww88__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #f0f0f0;
      color: var(--page-ww88-primary-color);
      font-weight: 600;
      font-size: 1.15em;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-ww88__faq-question:hover {
      background-color: #e6e6e6;
    }

    .page-ww88__faq-question h3 {
      margin: 0;
      font-size: 1.15em;
      color: var(--page-ww88-primary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-ww88__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      color: var(--page-ww88-accent-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-ww88__faq-item.active .page-ww88__faq-toggle {
      transform: rotate(45deg); /* Rotate '+' to 'x' or just use '−' */
    }

    .page-ww88__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      background-color: var(--page-ww88-text-light);
      color: var(--page-ww88-secondary-color);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-ww88__faq-item.active .page-ww88__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 992px) {
      .page-ww88__hero-title {
        font-size: 2.8em;
      }
      .page-ww88__hero-subtitle {
        font-size: 1.3em;
      }
      .page-ww88__section-title {
        font-size: 2em;
      }
      .page-ww88__game-categories,
      .page-ww88__promotions-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      }
      .page-ww88__providers-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
    }

    @media (max-width: 768px) {
      .page-ww88__hero-section {
        padding-top: 80px; /* Adjusted padding-top for mobile fixed header */
      }
      .page-ww88__hero-title {
        font-size: 2.2em;
      }
      .page-ww88__hero-subtitle {
        font-size: 1.1em;
      }
      .page-ww88__section {
        padding: 40px 0;
      }
      .page-ww88__section-title {
        font-size: 1.8em;
      }
      .page-ww88__text-content {
        font-size: 1em;
      }
      .page-ww88__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }
      .page-ww88__game-categories,
      .page-ww88__promotions-grid {
        grid-template-columns: 1fr;
      }
      .page-ww88__providers-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .page-ww88__faq-question, .page-ww88__faq-question h3 {
        font-size: 1em;
        padding: 15px 20px;
      }
      .page-ww88__faq-answer {
        padding: 0 20px;
      }
      .page-ww88__faq-item.active .page-ww88__faq-answer {
        padding: 15px 20px !important;
      }
      /* Image responsive optimization for mobile */
      .page-ww88 img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-ww88__hero-image,
      .page-ww88__category-image,
      .page-ww88__provider-image {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-ww88__hero-image-container,
      .page-ww88__category-card,
      .page-ww88__provider-logo {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-ww88__hero-title {
        font-size: 1.8em;
      }
      .page-ww88__hero-subtitle {
        font-size: 0.9em;
      }
      .page-ww88__section-title {
        font-size: 1.5em;
      }
      .page-ww88__providers-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .page-ww88__faq-question, .page-ww88__faq-question h3 {
        font-size: 0.9em;
        padding: 12px 15px;
      }
      .page-ww88__faq-answer {
        padding: 0 15px;
      }
      .page-ww88__faq-item.active .page-ww88__faq-answer {
        padding: 10px 15px !important;
      }
    }