:root {
      --page-winvnvip-primary-color: #e44d26; /* Cam đỏ */
      --page-winvnvip-secondary-color: #ffb300; /* Vàng cam */
      --page-winvnvip-dark-bg: #2c3e50; /* Xám đậm */
      --page-winvnvip-light-bg: #ecf0f1; /* Xám nhạt */
      --page-winvnvip-text-color: #333;
      --page-winvnvip-white: #ffffff;
      --page-winvnvip-border-radius: 8px;
      --page-winvnvip-padding-section: 40px 20px;
      --page-winvnvip-mobile-padding-section: 20px 15px;
    }

    .page-winvnvip {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-winvnvip-text-color);
      background-color: var(--page-winvnvip-light-bg);
      overflow-x: hidden;
    }

    .page-winvnvip__section {
      padding: var(--page-winvnvip-padding-section);
      margin-bottom: 20px;
      background-color: var(--page-winvnvip-white);
      border-radius: var(--page-winvnvip-border-radius);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-winvnvip__section--dark {
      background-color: var(--page-winvnvip-dark-bg);
      color: var(--page-winvnvip-white);
    }

    .page-winvnvip__section-title {
      text-align: center;
      color: var(--page-winvnvip-primary-color);
      font-size: 2.5em;
      margin-bottom: 30px;
      font-weight: bold;
    }

    .page-winvnvip__section--dark .page-winvnvip__section-title {
      color: var(--page-winvnvip-secondary-color);
    }

    .page-winvnvip__hero-section {
      position: relative;
      text-align: center;
      color: var(--page-winvnvip-white);
      padding: 10px 0 50px 0; /* Adjusted padding-top for fixed header */
      background-color: var(--page-winvnvip-dark-bg);
      overflow: hidden;
    }

    .page-winvnvip__hero-background {
      width: 100%;
      max-width: 100%;
      height: auto;
      object-fit: cover;
      display: block;
      margin-bottom: 20px;
      border-radius: var(--page-winvnvip-border-radius);
      box-sizing: border-box;
    }

    .page-winvnvip__hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-winvnvip__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      line-height: 1.2;
      color: var(--page-winvnvip-secondary-color);
    }

    .page-winvnvip__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      color: var(--page-winvnvip-white);
    }

    .page-winvnvip__button {
      display: inline-block;
      background-color: var(--page-winvnvip-primary-color);
      color: var(--page-winvnvip-white);
      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;
    }

    .page-winvnvip__button:hover {
      background-color: #d13a1a;
      transform: translateY(-2px);
    }

    .page-winvnvip__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-winvnvip-secondary-color);
      color: var(--page-winvnvip-dark-bg);
      padding: 15px 25px;
      border-radius: 50px;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      animation: page-winvnvip__pulse 2s infinite;
      text-decoration: none;
      border: none;
      cursor: pointer;
      white-space: nowrap;
    }

    .page-winvnvip__floating-button:hover {
      background-color: #e0a800;
    }

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

    .page-winvnvip__text-content {
      font-size: 1.1em;
      margin-bottom: 20px;
      text-align: justify;
    }

    .page-winvnvip__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-winvnvip__game-card {
      background-color: var(--page-winvnvip-white);
      border-radius: var(--page-winvnvip-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-winvnvip__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    }

    .page-winvnvip__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      box-sizing: border-box;
    }

    .page-winvnvip__game-info {
      padding: 20px;
    }

    .page-winvnvip__game-title {
      font-size: 1.4em;
      color: var(--page-winvnvip-primary-color);
      margin-bottom: 10px;
    }

    .page-winvnvip__game-description {
      font-size: 0.95em;
      color: #666;
      margin-bottom: 15px;
    }

    .page-winvnvip__features-list {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
    }

    .page-winvnvip__feature-item {
      background-color: var(--page-winvnvip-white);
      padding: 25px;
      border-radius: var(--page-winvnvip-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      text-align: center;
      box-sizing: border-box;
    }

    .page-winvnvip__feature-title {
      font-size: 1.3em;
      color: var(--page-winvnvip-primary-color);
      margin-bottom: 10px;
    }

    .page-winvnvip__feature-description {
      font-size: 1em;
      color: #555;
    }

    .page-winvnvip__steps-list {
      list-style: none;
      padding: 0;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
    }

    .page-winvnvip__step-item {
      flex: 1 1 calc(33% - 20px); /* 3 items per row on desktop */
      min-width: 280px;
      background-color: var(--page-winvnvip-white);
      padding: 25px;
      border-radius: var(--page-winvnvip-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      text-align: center;
      box-sizing: border-box;
    }

    .page-winvnvip__step-number {
      font-size: 2em;
      font-weight: bold;
      color: var(--page-winvnvip-secondary-color);
      margin-bottom: 10px;
    }

    .page-winvnvip__step-title {
      font-size: 1.2em;
      color: var(--page-winvnvip-primary-color);
      margin-bottom: 10px;
    }

    .page-winvnvip__step-description {
      font-size: 0.95em;
      color: #555;
    }

    .page-winvnvip__faq-container {
      max-width: 800px;
      margin: 0 auto;
    }

    .page-winvnvip__faq-item {
      background-color: var(--page-winvnvip-white);
      margin-bottom: 15px;
      border-radius: var(--page-winvnvip-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      overflow: hidden;
    }

    .page-winvnvip__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #f7f7f7;
      border-bottom: 1px solid #eee;
      transition: background-color 0.3s ease;
      color: var(--page-winvnvip-dark-bg);
      font-weight: bold;
    }

    .page-winvnvip__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-winvnvip__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-winvnvip__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-winvnvip-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-winvnvip__faq-item.active .page-winvnvip__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
    }

    .page-winvnvip__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #555;
      font-size: 0.95em;
      background-color: var(--page-winvnvip-white);
    }

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

    /* Mobile Responsiveness */
    @media (max-width: 768px) {
      .page-winvnvip__section {
        padding: var(--page-winvnvip-mobile-padding-section);
      }

      .page-winvnvip__hero-section {
        padding-top: 10px; /* Adjusted for mobile fixed header */
        padding-bottom: 30px;
      }

      .page-winvnvip__hero-title {
        font-size: 2.2em;
      }

      .page-winvnvip__hero-description {
        font-size: 1em;
      }

      .page-winvnvip__section-title {
        font-size: 2em;
        margin-bottom: 20px;
      }

      .page-winvnvip__game-grid {
        grid-template-columns: 1fr;
      }

      .page-winvnvip__floating-button {
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-winvnvip__features-list,
      .page-winvnvip__steps-list {
        grid-template-columns: 1fr;
        gap: 15px;
      }

      .page-winvnvip__feature-item,
      .page-winvnvip__step-item {
        flex: 1 1 100%;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      
      .page-winvnvip__features-list,
      .page-winvnvip__steps-list {
          width: 100% !important;
          max-width: 100% !important;
          box-sizing: border-box !important;
          padding: 0 !important;
          margin-left: 0 !important;
          margin-right: 0 !important;
      }

      .page-winvnvip__game-image {
        max-width: 100%;
        height: auto;
      }
    }