:root {
      --primary-color: #e44d26; /* Một màu cam đỏ nổi bật */
      --secondary-color: #333; /* Màu tối cho nền */
      --accent-color: #f7b200; /* Màu vàng cam làm điểm nhấn */
      --text-light: #f5f5f5;
      --text-dark: #222;
      --background-dark: #1a1a1a;
      --background-light: #2c2c2c;
      --border-color: #444;
      --spacing-unit: 16px;
    }

    .page-55chat-com {
      font-family: 'Arial', sans-serif;
      color: var(--text-light);
      background-color: var(--background-dark);
      line-height: 1.6;
      overflow-x: hidden;
      padding-top: var(--header-offset, 0); /* Default to 0, expecting body padding to handle header offset */
    }

    .page-55chat-com__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: var(--spacing-unit);
      box-sizing: border-box;
    }

    .page-55chat-com__hero-section {
      background: linear-gradient(135deg, var(--secondary-color), var(--background-dark));
      padding: calc(var(--spacing-unit) * 3) var(--spacing-unit);
      text-align: center;
      position: relative;
      overflow: hidden;
      padding-top: 10px; /* Small padding, assuming body handles main header offset */
    }

    .page-55chat-com__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.3;
      z-index: 0;
    }

    .page-55chat-com__hero-content {
      position: relative;
      z-index: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 400px;
    }

    .page-55chat-com__hero-title {
      font-size: 2.8em;
      color: var(--primary-color);
      margin-bottom: var(--spacing-unit);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-55chat-com__hero-description {
      font-size: 1.2em;
      color: var(--text-light);
      margin-bottom: calc(var(--spacing-unit) * 2);
      max-width: 800px;
    }

    .page-55chat-com__button-group {
      display: flex;
      gap: var(--spacing-unit);
      justify-content: center;
    }

    .page-55chat-com__button {
      background-color: var(--primary-color);
      color: white;
      padding: 12px 25px;
      border: none;
      border-radius: 5px;
      font-size: 1em;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: inline-block;
      text-align: center;
      white-space: nowrap;
    }

    .page-55chat-com__button:hover {
      background-color: #d13d1a;
      transform: translateY(-2px);
    }

    .page-55chat-com__button--secondary {
      background-color: var(--accent-color);
      color: var(--text-dark);
    }

    .page-55chat-com__button--secondary:hover {
      background-color: #e6a200;
    }

    .page-55chat-com__section {
      padding: calc(var(--spacing-unit) * 3) var(--spacing-unit);
      background-color: var(--background-light);
      border-bottom: 1px solid var(--border-color);
    }

    .page-55chat-com__section:nth-child(even) {
      background-color: var(--background-dark);
    }

    .page-55chat-com__section-title {
      font-size: 2.2em;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: calc(var(--spacing-unit) * 2);
    }

    .page-55chat-com__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: var(--spacing-unit);
      justify-content: center;
      padding: 0;
      list-style: none;
    }

    .page-55chat-com__game-item {
      background-color: var(--secondary-color);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-55chat-com__game-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-55chat-com__game-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-55chat-com__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

    .page-55chat-com__game-item:hover .page-55chat-com__game-image {
      transform: scale(1.05);
    }

    .page-55chat-com__game-info {
      padding: var(--spacing-unit);
    }

    .page-55chat-com__game-title {
      font-size: 1.4em;
      color: var(--accent-color);
      margin-top: 0;
      margin-bottom: var(--spacing-unit);
    }

    .page-55chat-com__game-description {
      font-size: 0.9em;
      color: var(--text-light);
    }

    .page-55chat-com__promotions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: calc(var(--spacing-unit) * 2);
      padding: 0;
      list-style: none;
    }

    .page-55chat-com__promotion-card {
      background-color: var(--background-light);
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-sizing: border-box;
    }

    .page-55chat-com__promotion-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-55chat-com__promotion-image {
      width: 100%;
      height: 250px;
      object-fit: cover;
      display: block;
    }

    .page-55chat-com__promotion-content {
      padding: var(--spacing-unit);
      flex-grow: 1;
    }

    .page-55chat-com__promotion-title {
      font-size: 1.5em;
      color: var(--primary-color);
      margin-top: 0;
      margin-bottom: var(--spacing-unit);
    }

    .page-55chat-com__promotion-description {
      font-size: 1em;
      color: var(--text-light);
      margin-bottom: var(--spacing-unit);
    }

    .page-55chat-com__features-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: var(--spacing-unit);
      padding: 0;
      list-style: none;
    }

    .page-55chat-com__feature-item {
      background-color: var(--secondary-color);
      padding: calc(var(--spacing-unit) * 1.5);
      border-radius: 8px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      box-sizing: border-box;
    }

    .page-55chat-com__feature-icon-wrapper {
      margin-bottom: var(--spacing-unit);
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-55chat-com__feature-icon {
      width: 100px;
      height: 100px;
      object-fit: contain;
      margin: 0 auto;
      display: block;
    }

    .page-55chat-com__feature-title {
      font-size: 1.3em;
      color: var(--accent-color);
      margin-top: 0;
      margin-bottom: var(--spacing-unit) / 2;
    }

    .page-55chat-com__feature-description {
      font-size: 0.9em;
      color: var(--text-light);
    }

    .page-55chat-com__logo-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: calc(var(--spacing-unit) * 2);
      padding: 0;
      list-style: none;
    }

    .page-55chat-com__logo-item {
      background-color: var(--background-light);
      padding: var(--spacing-unit);
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      min-width: 120px;
      max-width: 180px;
      box-sizing: border-box;
    }

    .page-55chat-com__logo-item a {
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
    }

    .page-55chat-com__logo-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-55chat-com__logo-image {
      max-width: 100%;
      height: auto;
      max-height: 60px;
      object-fit: contain;
      display: block;
    }

    .page-55chat-com__faq-section {
      background-color: var(--background-dark);
      padding: calc(var(--spacing-unit) * 3) var(--spacing-unit);
    }

    .page-55chat-com__faq-item {
      background-color: var(--background-light);
      margin-bottom: var(--spacing-unit);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      box-sizing: border-box;
    }

    .page-55chat-com__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.5);
      cursor: pointer;
      user-select: none;
      background-color: var(--secondary-color);
      border-bottom: 1px solid var(--border-color);
    }

    .page-55chat-com__faq-question h3 {
      font-size: 1.1em;
      color: var(--text-light);
      margin: 0;
      pointer-events: none; /* Prevent h3 from blocking click event on parent div */
    }

    .page-55chat-com__faq-toggle {
      font-size: 1.5em;
      color: var(--primary-color);
      font-weight: bold;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click event on parent div */
    }

    .page-55chat-com__faq-item.active .page-55chat-com__faq-toggle {
      transform: rotate(45deg);
    }

    .page-55chat-com__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 calc(var(--spacing-unit) * 1.5);
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: var(--text-light);
    }

    .page-55chat-com__faq-item.active .page-55chat-com__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.5) !important;
      opacity: 1;
    }

    .page-55chat-com__faq-answer p {
      margin-top: 0;
      margin-bottom: var(--spacing-unit);
    }

    .page-55chat-com__cta-bottom {
      text-align: center;
      padding: calc(var(--spacing-unit) * 3) var(--spacing-unit);
      background-color: var(--secondary-color);
    }

    .page-55chat-com__cta-bottom-text {
      font-size: 1.8em;
      color: var(--accent-color);
      margin-bottom: calc(var(--spacing-unit) * 1.5);
    }

    .page-55chat-com__floating-buttons {
      position: fixed;
      bottom: var(--spacing-unit);
      right: var(--spacing-unit);
      display: flex;
      flex-direction: column;
      gap: var(--spacing-unit);
      z-index: 1000;
    }

    .page-55chat-com__floating-button {
      background-color: var(--primary-color);
      color: white;
      padding: 10px 20px;
      border: none;
      border-radius: 50px;
      font-size: 1em;
      cursor: pointer;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: flex;
      align-items: center;
      justify-content: center;
      min-width: 120px;
    }

    .page-55chat-com__floating-button:hover {
      background-color: #d13d1a;
      transform: translateY(-3px);
    }

    .page-55chat-com__floating-button--login {
      background-color: var(--accent-color);
      color: var(--text-dark);
    }

    .page-55chat-com__floating-button--login:hover {
      background-color: #e6a200;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-55chat-com__container {
        padding: calc(var(--spacing-unit) / 2);
      }

      .page-55chat-com__hero-title {
        font-size: 2em;
      }

      .page-55chat-com__hero-description {
        font-size: 1em;
      }

      .page-55chat-com__button-group {
        flex-direction: column;
      }

      .page-55chat-com__button {
        width: 100%;
        max-width: 250px;
        margin: 0 auto;
      }

      .page-55chat-com__section-title {
        font-size: 1.8em;
      }

      .page-55chat-com__game-grid,
      .page-55chat-com__promotions-grid,
      .page-55chat-com__features-list,
      .page-55chat-com__logo-grid {
        grid-template-columns: 1fr;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
      }

      .page-55chat-com__game-item,
      .page-55chat-com__promotion-card,
      .page-55chat-com__feature-item,
      .page-55chat-com__logo-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: var(--spacing-unit) !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-55chat-com__game-image,
      .page-55chat-com__promotion-image,
      .page-55chat-com__feature-icon,
      .page-55chat-com__logo-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-55chat-com__game-image-wrapper,
      .page-55chat-com__promotion-image-wrapper,
      .page-55chat-com__feature-icon-wrapper,
      .page-55chat-com__logo-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }

      .page-55chat-com__faq-question {
        padding: var(--spacing-unit) calc(var(--spacing-unit) * 0.75);
      }

      .page-55chat-com__faq-question h3 {
        font-size: 1em;
      }

      .page-55chat-com__faq-answer {
        padding: 0 calc(var(--spacing-unit) * 0.75);
      }

      .page-55chat-com__faq-item.active .page-55chat-com__faq-answer {
        padding: var(--spacing-unit) calc(var(--spacing-unit) * 0.75) !important;
      }

      .page-55chat-com__cta-bottom-text {
        font-size: 1.4em;
      }

      .page-55chat-com__floating-buttons {
        flex-direction: row;
        width: calc(100% - var(--spacing-unit) * 2);
        left: var(--spacing-unit);
        right: var(--spacing-unit);
        bottom: var(--spacing-unit);
        justify-content: space-around;
      }

      .page-55chat-com__floating-button {
        flex: 1;
        min-width: unset;
      }
    }