:root {
      --page-mcw678-primary-color: #f7b32b; /* Vàng cam */
      --page-mcw678-secondary-color: #1a1a1a; /* Đen đậm */
      --page-mcw678-accent-color: #e44d26; /* Đỏ cam */
      --page-mcw678-text-light: #ffffff;
      --page-mcw678-text-dark: #333333;
      --page-mcw678-bg-light: #f5f5f5;
      --page-mcw678-bg-dark: #2c3e50;
    }

    .page-mcw678 {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-mcw678-text-dark);
      background-color: var(--page-mcw678-bg-light);
    }

    .page-mcw678__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--page-mcw678-text-light);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-mcw678__section--dark {
      background-color: var(--page-mcw678-secondary-color);
      color: var(--page-mcw678-text-light);
    }

    .page-mcw678__section-title {
      font-size: 2.5em;
      color: var(--page-mcw678-accent-color);
      text-align: center;
      margin-bottom: 30px;
      font-weight: 700;
      line-height: 1.2;
    }

    .page-mcw678__section-title--light {
      color: var(--page-mcw678-primary-color);
    }

    .page-mcw678__text-content {
      font-size: 1.1em;
      margin-bottom: 20px;
      color: var(--page-mcw678-text-dark);
      text-align: justify;
    }

    .page-mcw678__text-content--light {
      color: var(--page-mcw678-text-light);
    }

    /* Hero Section */
    .page-mcw678__hero-section {
      position: relative;
      text-align: center;
      padding-top: 10px; /* Spacing for fixed header */
      margin-bottom: 0;
      border-radius: 0;
      box-shadow: none;
      background-color: var(--page-mcw678-bg-dark);
      overflow: hidden;
    }

    .page-mcw678__hero-image {
      width: 100%;
      height: auto;
      max-width: 100%;
      display: block;
      margin: 0 auto;
      object-fit: cover;
      border-radius: 8px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }
    .page-mcw678__hero-content {
      position: relative;
      z-index: 1;
      padding: 30px 20px 50px;
      color: var(--page-mcw678-text-light);
      background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.8) 100%);
      margin-top: -10px; /* Overlap with image slightly for visual flow */
      border-bottom-left-radius: 8px;
      border-bottom-right-radius: 8px;
    }

    .page-mcw678__hero-title {
      font-size: 3em;
      color: var(--page-mcw678-primary-color);
      margin-bottom: 15px;
      font-weight: 900;
      line-height: 1.1;
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-mcw678__hero-subtitle {
      font-size: 1.4em;
      margin-bottom: 30px;
      color: #e0e0e0;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-mcw678__cta-button {
      display: inline-block;
      background-color: var(--page-mcw678-primary-color);
      color: var(--page-mcw678-secondary-color);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
      border: none;
      cursor: pointer;
    }

    .page-mcw678__cta-button:hover {
      background-color: var(--page-mcw678-accent-color);
      transform: translateY(-3px);
      color: var(--page-mcw678-text-light);
    }

    /* Floating Login Button */
    .page-mcw678__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-mcw678-accent-color);
      color: var(--page-mcw678-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, transform 0.2s ease;
      animation: page-mcw678__pulse 2s infinite;
      border: none;
      cursor: pointer;
    }

    .page-mcw678__floating-button:hover {
      background-color: #c73e1c;
      transform: scale(1.05);
    }

    @keyframes page-mcw678__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.03); }
      100% { transform: scale(1); }
    }

    /* Game Categories */
    .page-mcw678__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 25px;
      padding: 20px 0;
    }

    .page-mcw678__game-item {
      text-align: center;
      background-color: var(--page-mcw678-bg-light);
      padding: 20px 15px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-mcw678__game-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .page-mcw678__game-icon {
      width: 100px;
      height: 100px;
      max-width: 100%;
      height: auto;
      object-fit: contain;
      margin-bottom: 15px;
      border-radius: 50%; /* For round icons */
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .page-mcw678__game-name {
      font-size: 1.2em;
      font-weight: 600;
      color: var(--page-mcw678-secondary-color);
    }

    /* Promotions */
    .page-mcw678__promo-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .page-mcw678__promo-card {
      display: flex;
      align-items: center;
      gap: 20px;
      background-color: var(--page-mcw678-bg-dark);
      color: var(--page-mcw678-text-light);
      padding: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .page-mcw678__promo-image {
      width: 150px;
      height: 100px;
      max-width: 100%;
      height: auto;
      object-fit: cover;
      border-radius: 8px;
      flex-shrink: 0;
    }

    .page-mcw678__promo-content h3 {
      font-size: 1.5em;
      color: var(--page-mcw678-primary-color);
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-mcw678__promo-content p {
      font-size: 1em;
      margin-bottom: 0;
    }

    /* How-To Section */
    .page-mcw678__step-list {
      list-style: none;
      padding: 0;
      counter-reset: step-counter;
    }

    .page-mcw678__step-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 25px;
      gap: 15px;
    }

    .page-mcw678__step-number {
      counter-increment: step-counter;
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-mcw678-primary-color);
      background-color: var(--page-mcw678-accent-color);
      border-radius: 50%;
      width: 45px;
      height: 45px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: var(--page-mcw678-text-light);
    }
    .page-mcw678__step-number::before {
      content: counter(step-counter);
    }

    .page-mcw678__step-content h3 {
      font-size: 1.3em;
      color: var(--page-mcw678-secondary-color);
      margin-top: 0;
      margin-bottom: 8px;
    }

    .page-mcw678__step-content p {
      font-size: 1em;
      color: var(--page-mcw678-text-dark);
    }

    /* FAQ Section */
    .page-mcw678__faq-list {
      list-style: none;
      padding: 0;
    }

    .page-mcw678__faq-item {
      background-color: var(--page-mcw678-bg-light);
      border: 1px solid #ddd;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-mcw678__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--page-mcw678-text-light);
      color: var(--page-mcw678-secondary-color);
      font-weight: 600;
      cursor: pointer;
      user-select: none;
      border-bottom: 1px solid #eee;
      transition: background-color 0.3s ease;
    }

    .page-mcw678__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-mcw678__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-mcw678-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-mcw678__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      font-weight: bold;
      color: var(--page-mcw678-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent span from blocking click event */
    }

    .page-mcw678__faq-item.active .page-mcw678__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
      color: var(--page-mcw678-accent-color);
    }

    .page-mcw678__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      background-color: var(--page-mcw678-text-light);
      color: var(--page-mcw678-text-dark);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      font-size: 1em;
    }

    .page-mcw678__faq-item.active .page-mcw678__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* General image styles for responsiveness */
    .page-mcw678 img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .page-mcw678__image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin: 20px auto;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-mcw678__hero-section {
        padding-top: 10px; /* Mobile spacing for fixed header */
      }
      .page-mcw678__section {
        padding: 25px 15px;
      }
      .page-mcw678__section-title {
        font-size: 2em;
        margin-bottom: 20px;
      }
      .page-mcw678__hero-title {
        font-size: 2em;
      }
      .page-mcw678__hero-subtitle {
        font-size: 1.1em;
        margin-bottom: 20px;
      }
      .page-mcw678__cta-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }
      .page-mcw678__floating-button {
        padding: 10px 20px;
        font-size: 1em;
        bottom: 15px;
        right: 15px;
      }
      .page-mcw678__game-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
      }
      .page-mcw678__game-icon {
        width: 80px;
        height: 80px;
      }
      .page-mcw678__game-name {
        font-size: 1em;
      }
      .page-mcw678__promo-card {
        flex-direction: column;
        text-align: center;
      }
      .page-mcw678__promo-image {
        width: 100%;
        height: 150px;
      }
      .page-mcw678__promo-content h3 {
        font-size: 1.3em;
      }
      .page-mcw678__step-number {
        font-size: 1.5em;
        width: 40px;
        height: 40px;
      }
      .page-mcw678__step-content h3 {
        font-size: 1.1em;
      }
      .page-mcw678__faq-question {
        padding: 12px 15px;
      }
      .page-mcw678__faq-question h3 {
        font-size: 1.1em;
      }
      .page-mcw678__faq-toggle {
        font-size: 1.5em;
      }
      .page-mcw678__faq-answer {
        padding: 15px 15px;
      }

      /* Image responsiveness for mobile */
      .page-mcw678 img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-mcw678__image-container {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }