:root {
      --primary-bg: #1a1a1a;
      --secondary-bg: #2a2a2a;
      --tertiary-bg: #333333;
      --primary-text: #f0f0f0;
      --secondary-text: #cccccc;
      --accent-color: #FFD700; /* Gold */
      --accent-dark: #e6c200;
      --button-register-bg: #FFD700;
      --button-register-text: #333333;
      --button-register-hover-bg: #e6c200;
      --button-login-bg: #007BFF; /* Blue */
      --button-login-text: #FFFFFF;
      --button-login-hover-bg: #0056b3;
      --border-color: #444444;
      --shadow-color: rgba(0, 0, 0, 0.5);
    }

    .page-6ff-trang-ch {
      font-family: 'Arial', sans-serif;
      background-color: var(--primary-bg);
      color: var(--primary-text);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating buttons */
    }

    .page-6ff-trang-ch section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .page-6ff-trang-ch__hero-section {
      text-align: center;
      padding-top: 10px; /* Small decorative top padding, assuming body has header offset */
      padding-bottom: 30px;
      background-color: var(--secondary-bg);
      position: relative;
      overflow: hidden;
    }

    .page-6ff-trang-ch__hero-section h1 {
      font-size: 2.5em;
      color: var(--accent-color);
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px var(--shadow-color);
    }

    .page-6ff-trang-ch__hero-section p {
      font-size: 1.1em;
      color: var(--secondary-text);
      max-width: 800px;
      margin: 0 auto 20px auto;
    }

    .page-6ff-trang-ch__hero-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-top: 20px;
      border-radius: 12px;
      box-shadow: 0 8px 20px var(--shadow-color);
    }

    .page-6ff-trang-ch__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 12px;
    }

    .page-6ff-trang-ch__section-title {
      text-align: center;
      font-size: 2em;
      color: var(--accent-color);
      margin-bottom: 30px;
      text-shadow: 1px 1px 3px var(--shadow-color);
    }

    .page-6ff-trang-ch__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      justify-content: center;
    }

    .page-6ff-trang-ch__category-item {
      background-color: var(--tertiary-bg);
      border-radius: 10px;
      overflow: hidden;
      text-align: center;
      padding-bottom: 20px;
      box-shadow: 0 4px 10px var(--shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .page-6ff-trang-ch__category-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 15px var(--shadow-color);
    }

    .page-6ff-trang-ch__category-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 200px; /* Fixed height for consistency */
    }

    .page-6ff-trang-ch__category-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .page-6ff-trang-ch__category-title {
      font-size: 1.5em;
      color: var(--accent-color);
      margin: 15px 0 10px;
      padding: 0 15px;
    }

    .page-6ff-trang-ch__category-description {
      color: var(--secondary-text);
      font-size: 0.95em;
      padding: 0 15px;
    }

    .page-6ff-trang-ch__benefits-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
    }

    .page-6ff-trang-ch__benefit-item {
      background-color: var(--tertiary-bg);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 4px 10px var(--shadow-color);
      text-align: center;
      border-left: 5px solid var(--accent-color);
    }

    .page-6ff-trang-ch__benefit-title {
      font-size: 1.4em;
      color: var(--accent-color);
      margin-bottom: 10px;
    }

    .page-6ff-trang-ch__benefit-description {
      color: var(--secondary-text);
      font-size: 1em;
    }

    .page-6ff-trang-ch__promotions-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 30px;
      align-items: center;
    }

    .page-6ff-trang-ch__promotions-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      border-radius: 12px;
      box-shadow: 0 8px 20px var(--shadow-color);
    }

    .page-6ff-trang-ch__promotions-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 12px;
    }

    .page-6ff-trang-ch__promotions-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-6ff-trang-ch__promotions-list li {
      background-color: var(--tertiary-bg);
      margin-bottom: 15px;
      padding: 15px 20px;
      border-radius: 8px;
      color: var(--primary-text);
      font-size: 1.1em;
      border-left: 4px solid var(--accent-color);
      box-shadow: 0 2px 5px var(--shadow-color);
    }

    .page-6ff-trang-ch__payment-providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); /* Min 200px for images */
      gap: 25px;
      justify-content: center;
      margin-top: 30px;
    }

    .page-6ff-trang-ch__logo-item {
      background-color: var(--tertiary-bg);
      padding: 20px;
      border-radius: 8px;
      text-align: center;
      box-shadow: 0 2px 8px var(--shadow-color);
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 120px;
      box-sizing: border-box;
    }

    .page-6ff-trang-ch__logo-image {
      max-width: 100%;
      max-height: 80px;
      height: auto;
      display: block;
    }

    .page-6ff-trang-ch__faq-item {
      margin-bottom: 15px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      background-color: var(--secondary-bg);
      box-shadow: 0 2px 8px var(--shadow-color);
    }

    .page-6ff-trang-ch__faq-question {
      background-color: var(--tertiary-bg);
      padding: 15px 20px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--primary-text);
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
    }

    .page-6ff-trang-ch__faq-question:hover {
      background-color: #444444;
    }

    .page-6ff-trang-ch__faq-question h3 {
      margin: 0;
      font-size: 1em;
      color: inherit;
      pointer-events: none;
    }

    .page-6ff-trang-ch__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      transition: transform 0.3s ease;
      pointer-events: none;
    }

    .page-6ff-trang-ch__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      background-color: var(--secondary-bg);
      color: var(--secondary-text);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-6ff-trang-ch__faq-answer p {
      margin: 0;
      padding-bottom: 15px;
      line-height: 1.6;
    }

    .page-6ff-trang-ch__faq-item.active .page-6ff-trang-ch__faq-answer {
      max-height: 2000px !important;
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-6ff-trang-ch__faq-item.active .page-6ff-trang-ch__faq-toggle {
      transform: rotate(45deg);
    }

    .page-6ff-trang-ch__cta-buttons {
      text-align: center;
      margin-top: 40px;
      display: flex;
      justify-content: center;
      gap: 20px;
    }

    .page-6ff-trang-ch__cta-button {
      padding: 15px 30px;
      border: none;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px var(--shadow-color);
    }

    .page-6ff-trang-ch__cta-button--register {
      background-color: var(--button-register-bg);
      color: var(--button-register-text);
    }

    .page-6ff-trang-ch__cta-button--register:hover {
      background-color: var(--button-register-hover-bg);
      transform: translateY(-2px);
    }

    .page-6ff-trang-ch__cta-button--login {
      background-color: var(--button-login-bg);
      color: var(--button-login-text);
    }

    .page-6ff-trang-ch__cta-button--login:hover {
      background-color: var(--button-login-hover-bg);
      transform: translateY(-2px);
    }

    /* Floating Buttons */
    .page-6ff-trang-ch__floating-buttons {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 15px;
      z-index: 1000;
      padding: 10px 20px;
      background-color: rgba(0, 0, 0, 0.7);
      border-radius: 50px;
      box-shadow: 0 4px 15px var(--shadow-color);
    }

    .page-6ff-trang-ch__floating-button {
      padding: 12px 25px;
      border: none;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      color: var(--primary-text);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .page-6ff-trang-ch__floating-button--register {
      background-color: var(--button-register-bg);
      color: var(--button-register-text);
    }

    .page-6ff-trang-ch__floating-button--register:hover {
      background-color: var(--button-register-hover-bg);
      transform: translateY(-2px);
    }

    .page-6ff-trang-ch__floating-button--login {
      background-color: var(--button-login-bg);
      color: var(--button-login-text);
    }

    .page-6ff-trang-ch__floating-button--login:hover {
      background-color: var(--button-login-hover-bg);
      transform: translateY(-2px);
    }

    /* Responsive Adjustments */
    @media (max-width: 768px) {
      .page-6ff-trang-ch section {
        padding: 30px 15px;
      }

      .page-6ff-trang-ch__hero-section h1 {
        font-size: 2em;
      }

      .page-6ff-trang-ch__hero-section p {
        font-size: 1em;
      }

      .page-6ff-trang-ch__section-title {
        font-size: 1.8em;
        margin-bottom: 25px;
      }

      .page-6ff-trang-ch__game-categories,
      .page-6ff-trang-ch__benefits-list,
      .page-6ff-trang-ch__payment-providers-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-6ff-trang-ch__category-item,
      .page-6ff-trang-ch__benefit-item,
      .page-6ff-trang-ch__logo-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;
        word-break: break-word !important;
      }

      .page-6ff-trang-ch__promotions-grid {
        grid-template-columns: 1fr;
      }

      .page-6ff-trang-ch__promotions-list li {
        padding: 12px 15px;
        font-size: 1em;
      }

      .page-6ff-trang-ch__faq-question {
        padding: 12px 15px;
        font-size: 1em;
      }
      .page-6ff-trang-ch__faq-answer {
        padding: 0 10px;
      }
      .page-6ff-trang-ch__faq-item.active .page-6ff-trang-ch__faq-answer {
        padding: 15px 10px !important;
      }

      .page-6ff-trang-ch__cta-buttons {
        flex-direction: column;
        gap: 15px;
      }

      .page-6ff-trang-ch__cta-button {
        width: 100%;
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-6ff-trang-ch__floating-buttons {
        gap: 10px;
        padding: 8px 15px;
        bottom: 15px;
      }
      .page-6ff-trang-ch__floating-button {
        padding: 10px 20px;
        font-size: 1em;
      }
    }