:root {
      --primary-color: #e44d26; /* Cam đỏ */
      --secondary-color: #333; /* Đen đậm */
      --accent-color: #f7931e; /* Cam tươi */
      --text-light: #fff;
      --text-dark: #333;
      --bg-light: #f4f4f4;
      --bg-dark: #222;
      --border-color: #ddd;
      --box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      --border-radius: 8px;
    }

    body {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--text-dark);
      background-color: var(--bg-light);
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    /* Base styles for the page */
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam {
      padding-top: 10px; /* Small padding top for the first section after header offset */
      max-width: 1200px;
      margin: 0 auto;
      background-color: var(--bg-light);
    }

    /* Section styling */
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--text-light);
      border-radius: var(--border-radius);
      box-shadow: var(--box-shadow);
    }
    
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section--dark {
      background-color: var(--secondary-color);
      color: var(--text-light);
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section-title {
      text-align: center;
      color: var(--primary-color);
      margin-bottom: 30px;
      font-size: 2.2em;
      font-weight: bold;
    }
    
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section--dark .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section-title {
        color: var(--accent-color);
    }

    /* Hero Section */
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__hero-section {
      text-align: center;
      padding: 60px 20px;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      color: var(--text-light);
      border-radius: var(--border-radius);
      margin-bottom: 20px;
      position: relative;
      overflow: hidden;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 0;
      opacity: 0.3;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__hero-content {
      position: relative;
      z-index: 1;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--text-light);
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: var(--text-light);
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__button {
      display: inline-block;
      background-color: var(--secondary-color);
      color: var(--text-light);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__button:hover {
      background-color: #555;
      transform: translateY(-3px);
    }

    /* Game Categories */
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-card {
      background-color: var(--bg-light);
      border-radius: var(--border-radius);
      overflow: hidden;
      box-shadow: var(--box-shadow);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: 20px;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      border-bottom: 3px solid var(--primary-color);
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-title {
      font-size: 1.4em;
      color: var(--secondary-color);
      margin: 20px 15px 10px;
      font-weight: bold;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-description {
      font-size: 0.95em;
      color: var(--text-dark);
      padding: 0 15px;
    }
    
    /* Promotion Section */
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__promotion-card {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 30px;
        background: linear-gradient(to right, #ffe0b2, #ffcc80);
        border-radius: var(--border-radius);
        box-shadow: var(--box-shadow);
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__promotion-image {
        max-width: 100%;
        height: auto;
        border-radius: var(--border-radius);
        margin-bottom: 20px;
        border: 3px solid var(--accent-color);
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__promotion-title {
        color: var(--primary-color);
        font-size: 2em;
        margin-bottom: 15px;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__promotion-text {
        color: var(--secondary-color);
        font-size: 1.1em;
        margin-bottom: 25px;
        max-width: 700px;
    }

    /* Payment Methods & Providers */
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 20px;
      margin-top: 30px;
      justify-items: center;
      align-items: center;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-item {
      text-align: center;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-image {
      max-width: 120px;
      height: auto;
      object-fit: contain;
      border-radius: 5px;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
      transition: transform 0.2s ease;
    }
    
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-image:hover {
        transform: scale(1.05);
    }
    
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-name {
        margin-top: 10px;
        font-size: 0.9em;
        font-weight: bold;
        color: var(--secondary-color);
    }
    
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section--dark .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-name {
        color: var(--text-light);
    }

    /* FAQ Section */
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-container {
      max-width: 800px;
      margin: 0 auto;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-item {
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--text-light);
      cursor: pointer;
      font-weight: bold;
      color: var(--secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-question:hover {
      background-color: #f0f0f0;
    }
    
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-question h3 {
        margin: 0;
        font-size: 1.1em;
        pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: 15px;
      pointer-events: none; /* Prevent toggle from blocking click event */
      color: var(--primary-color);
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Initial padding */
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      background-color: #fdfdfd;
      color: var(--text-dark);
      font-size: 0.95em;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-item.active .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-answer {
      max-height: 2000px !important; /* Sufficiently large height */
      padding: 20px 20px !important; /* Expanded padding */
      opacity: 1;
    }

    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-item.active .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-toggle {
      content: '−'; /* Changed by JS */
    }

    /* General text styling */
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam p {
      margin-bottom: 1em;
      color: var(--text-dark);
    }
    
    .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section--dark p {
        color: var(--text-light);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam {
        padding: 0 10px;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__hero-title {
        font-size: 2.2em;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__hero-subtitle {
        font-size: 1.1em;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section {
        padding: 30px 15px;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__section-title {
        font-size: 1.8em;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-grid {
        grid-template-columns: 1fr;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-image {
        height: 180px;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__promotion-title {
          font-size: 1.6em;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__promotion-text {
          font-size: 1em;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: 15px;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-image {
          max-width: 100px;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-question {
        padding: 12px 15px;
        font-size: 0.95em;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-question h3 {
          font-size: 1em;
      }

      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-answer {
        padding: 0 15px;
        font-size: 0.9em;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-item.active .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-answer {
        padding: 15px 15px !important;
      }
      
      /* All images responsive */
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam img {
          max-width: 100% !important;
          height: auto !important;
          box-sizing: border-box !important;
      }

      /* All image containers responsive */
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-card,
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__promotion-card,
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-item {
          width: 100% !important;
          max-width: 100% !important;
          overflow: hidden !important;
          box-sizing: border-box !important;
      }

      /* List item responsiveness (game cards act as list items) */
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-card {
          width: 100% !important;
          max-width: 100% !important;
          box-sizing: border-box !important;
          margin-left: 0 !important;
          margin-right: 0 !important;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-grid {
          width: 100% !important;
          max-width: 100% !important;
          box-sizing: border-box !important;
          padding: 0 !important;
          margin-left: 0 !important;
          margin-right: 0 !important;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-item {
          width: 100% !important;
          max-width: 100% !important;
          box-sizing: border-box !important;
          margin-left: 0 !important;
          margin-right: 0 !important;
      }
      
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__logo-grid {
          width: 100% !important;
          max-width: 100% !important;
          box-sizing: border-box !important;
          padding: 0 !important;
          margin-left: 0 !important;
          margin-right: 0 !important;
      }
      
      /* Ensure text breaks properly */
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam p,
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__game-description,
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__promotion-text,
      .page-s-ng-b-c-tr-c-tuy-n-vi-t-nam__faq-answer {
          word-wrap: break-word !important;
          overflow-wrap: break-word !important;
          word-break: break-word !important;
      }
    }