:root {
      --primary-color: #e44d26; /* Màu cam đỏ */
      --secondary-color: #f7a500; /* Màu vàng cam */
      --accent-color: #2c3e50; /* Màu xanh đậm */
      --text-color: #333;
      --light-text-color: #f8f8f8;
      --background-light: #f4f7f6;
      --background-dark: #1a1a1a;
      --card-background: #ffffff;
      --border-radius-base: 8px;
      --shadow-base: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    /* Base styling for the page */
    .page-okvip-h-p-t-c {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--text-color);
      background-color: var(--background-light);
      padding: 10px 0; /* Small top padding for hero/first section, body padding-top handles header offset */
    }

    .page-okvip-h-p-t-c__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      box-sizing: border-box;
    }

    /* Hero Section */
    .page-okvip-h-p-t-c__hero-section {
      text-align: center;
      padding: 60px 20px;
      background-color: var(--accent-color);
      color: var(--light-text-color);
      position: relative;
      overflow: hidden;
      border-radius: var(--border-radius-base);
      margin-bottom: 40px;
    }

    .page-okvip-h-p-t-c__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.3;
      z-index: 1;
    }

    .page-okvip-h-p-t-c__hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      margin: 0 auto;
    }

    .page-okvip-h-p-t-c__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--secondary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-okvip-h-p-t-c__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: var(--light-text-color);
    }

    .page-okvip-h-p-t-c__cta-button {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--light-text-color);
      padding: 15px 30px;
      border-radius: 50px;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-okvip-h-p-t-c__cta-button:hover {
      background-color: #d6401f;
      transform: translateY(-3px);
    }

    /* Section Styling */
    .page-okvip-h-p-t-c__section {
      background-color: var(--card-background);
      padding: 40px 30px;
      margin-bottom: 30px;
      border-radius: var(--border-radius-base);
      box-shadow: var(--shadow-base);
    }

    .page-okvip-h-p-t-c__section-title {
      font-size: 2em;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
    }

    .page-okvip-h-p-t-c__section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 3px;
      background-color: var(--secondary-color);
      margin: 10px auto 0;
      border-radius: 2px;
    }

    /* Partnership Benefits */
    .page-okvip-h-p-t-c__benefits-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    .page-okvip-h-p-t-c__benefit-card {
      background-color: var(--background-light);
      padding: 25px;
      border-radius: var(--border-radius-base);
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-okvip-h-p-t-c__benefit-card:hover {
      transform: translateY(-5px);
    }

    .page-okvip-h-p-t-c__benefit-icon {
      width: 100px;
      height: 100px;
      margin-bottom: 15px;
      object-fit: contain;
      border-radius: 50%;
    }

    .page-okvip-h-p-t-c__benefit-title {
      font-size: 1.3em;
      color: var(--accent-color);
      margin-bottom: 10px;
    }

    .page-okvip-h-p-t-c__benefit-description {
      font-size: 0.95em;
      color: var(--text-color);
    }

    /* Game Categories */
    .page-okvip-h-p-t-c__game-categories {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
    }

    .page-okvip-h-p-t-c__category-item {
      flex: 1 1 280px;
      background-color: var(--background-dark);
      color: var(--light-text-color);
      border-radius: var(--border-radius-base);
      overflow: hidden;
      box-shadow: var(--shadow-base);
      transition: transform 0.3s ease;
      text-align: center;
      position: relative;
    }

    .page-okvip-h-p-t-c__category-item:hover {
      transform: translateY(-5px);
    }

    .page-okvip-h-p-t-c__category-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-okvip-h-p-t-c__category-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.7) 100%);
      display: flex;
      align-items: flex-end;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-okvip-h-p-t-c__category-title {
      font-size: 1.5em;
      color: var(--light-text-color);
      margin: 0;
      width: 100%;
      text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    }

    /* Call to Action Section */
    .page-okvip-h-p-t-c__call-to-action {
      text-align: center;
      padding: 50px 20px;
      background-color: var(--primary-color);
      color: var(--light-text-color);
      border-radius: var(--border-radius-base);
      margin-top: 30px;
    }

    .page-okvip-h-p-t-c__cta-text {
      font-size: 1.8em;
      margin-bottom: 25px;
    }

    /* FAQ Section */
    .page-okvip-h-p-t-c__faq-section {
      background-color: var(--card-background);
      padding: 40px 30px;
      margin-bottom: 30px;
      border-radius: var(--border-radius-base);
      box-shadow: var(--shadow-base);
    }

    .page-okvip-h-p-t-c__faq-item {
      border-bottom: 1px solid #eee;
      margin-bottom: 10px;
    }

    .page-okvip-h-p-t-c__faq-item:last-child {
      border-bottom: none;
      margin-bottom: 0;
    }

    .page-okvip-h-p-t-c__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 0;
      cursor: pointer;
      user-select: none;
      font-size: 1.1em;
      color: var(--accent-color);
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-okvip-h-p-t-c__faq-question:hover {
      background-color: #f9f9f9;
    }

    .page-okvip-h-p-t-c__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-okvip-h-p-t-c__faq-toggle {
      font-size: 1.5em;
      margin-left: 15px;
      color: var(--primary-color);
      pointer-events: none; /* Prevent span from blocking click event */
      transition: transform 0.3s ease;
    }

    .page-okvip-h-p-t-c__faq-item.active .page-okvip-h-p-t-c__faq-toggle {
      transform: rotate(45deg); /* Change + to X or similar, or just rotate */
    }

    .page-okvip-h-p-t-c__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: var(--text-color);
    }

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

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-okvip-h-p-t-c__hero-section {
        padding: 40px 15px;
      }

      .page-okvip-h-p-t-c__hero-title {
        font-size: 2.2em;
      }

      .page-okvip-h-p-t-c__hero-subtitle {
        font-size: 1.1em;
      }

      .page-okvip-h-p-t-c__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-okvip-h-p-t-c__section {
        padding: 30px 15px;
      }

      .page-okvip-h-p-t-c__section-title {
        font-size: 1.8em;
      }

      .page-okvip-h-p-t-c__benefits-grid {
        grid-template-columns: 1fr;
      }

      .page-okvip-h-p-t-c__benefit-icon {
        width: 80px;
        height: 80px;
      }

      .page-okvip-h-p-t-c__game-categories {
        flex-direction: column;
        align-items: center;
      }

      .page-okvip-h-p-t-c__category-item {
        flex: 0 0 95%; /* Adjust width for mobile */
        max-width: 95%; /* Ensure it doesn't exceed container */
      }

      .page-okvip-h-p-t-c__category-image {
        height: 180px;
      }

      .page-okvip-h-p-t-c__cta-text {
        font-size: 1.5em;
      }

      .page-okvip-h-p-t-c__container {
        padding: 0 15px;
      }

      /* List item mobile responsive */
      .page-okvip-h-p-t-c__benefits-grid > div { /* Target individual benefit cards */
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px 15px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }

      .page-okvip-h-p-t-c__game-categories { /* Target the container for categories */
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-okvip-h-p-t-c__category-item { /* Target individual category items */
        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;
      }

      /* Images responsive on mobile */
      .page-okvip-h-p-t-c__hero-image,
      .page-okvip-h-p-t-c__benefit-icon,
      .page-okvip-h-p-t-c__category-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
    }