/* CSS toàn cục cho trang five88 .vin */
    :root {
      --page-five88vin-primary-color: #f1c40f; /* Vàng rực rỡ */
      --page-five88vin-secondary-color: #e67e22; /* Cam đậm */
      --page-five88vin-dark-bg: #2c3e50; /* Xám xanh đậm */
      --page-five88vin-light-bg: #ecf0f1; /* Xám nhạt */
      --page-five88vin-text-color: #34495e; /* Xám đậm cho văn bản */
      --page-five88vin-white-text: #ffffff; /* Trắng */
      --page-five88vin-border-radius: 8px;
      --page-five88vin-padding-mobile: 15px;
      --page-five88vin-padding-desktop: 25px;
      --page-five88vin-header-safe-zone: 160px; /* Vùng an toàn cho banner */
    }

    .page-five88vin {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-five88vin-text-color);
      background-color: var(--page-five88vin-light-bg);
      padding-top: var(--page-five88vin-header-safe-zone); /* Vùng an toàn cho banner */
      position: relative;
    }

    .page-five88vin__section {
      padding: var(--page-five88vin-padding-mobile) 0;
      margin-bottom: 20px;
      background-color: var(--page-five88vin-white-text);
      border-radius: var(--page-five88vin-border-radius);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      text-align: center;
    }

    .page-five88vin__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--page-five88vin-padding-mobile);
    }

    .page-five88vin__title {
      color: var(--page-five88vin-dark-bg);
      margin-bottom: 20px;
      font-size: 2.2em;
      font-weight: 700;
    }

    .page-five88vin__subtitle {
      color: var(--page-five88vin-primary-color);
      margin-bottom: 15px;
      font-size: 1.8em;
      font-weight: 600;
    }

    .page-five88vin__text {
      font-size: 1em;
      margin-bottom: 15px;
      line-height: 1.7;
    }

    .page-five88vin__button {
      display: inline-block;
      background-color: var(--page-five88vin-primary-color);
      color: var(--page-five88vin-white-text);
      padding: 12px 25px;
      border-radius: var(--page-five88vin-border-radius);
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      font-size: 1.1em;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .page-five88vin__button:hover {
      background-color: var(--page-five88vin-secondary-color);
      transform: translateY(-2px);
    }

    .page-five88vin__hero-banner {
      width: 100%;
      height: auto;
      max-height: 400px; /* Giới hạn chiều cao trên di động */
      object-fit: contain; /* Đảm bảo tỷ lệ gốc */
      display: block;
      margin: 0 auto;
      border-radius: var(--page-five88vin-border-radius);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
      margin-top: -var(--page-five88vin-header-safe-zone); /* Kéo banner lên đầu trang */
      position: relative;
      z-index: 1; /* Đảm bảo banner nằm trên nội dung khác */
    }

    .page-five88vin__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-five88vin-secondary-color);
      color: var(--page-five88vin-white-text);
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      animation: pulse 2s infinite;
      text-align: center;
      line-height: 1.2;
    }

    .page-five88vin__floating-button span {
      display: block;
      font-size: 0.8em;
      font-weight: normal;
    }

    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    .page-five88vin__game-grid,
    .page-five88vin__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      gap: 15px;
      margin-top: 20px;
    }

    .page-five88vin__game-item,
    .page-five88vin__provider-item {
      background-color: var(--page-five88vin-dark-bg);
      border-radius: var(--page-five88vin-border-radius);
      overflow: hidden;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding: 10px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
    }

    .page-five88vin__game-item:hover,
    .page-five88vin__provider-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 16px rgba(0, 0, 0, 0.25);
    }

    .page-five88vin__game-item img {
      width: 100%;
      height: 100px; /* Chiều cao cố định cho hình ảnh game */
      object-fit: cover;
      border-radius: 5px;
      margin-bottom: 10px;
    }
    
    .page-five88vin__provider-item img {
      width: 80%; /* Chiều rộng tương đối cho logo nhà cung cấp */
      max-width: 120px; /* Giới hạn chiều rộng tối đa */
      height: auto;
      object-fit: contain;
      margin: 10px 0;
      filter: grayscale(10%); /* Hiệu ứng nhẹ */
      transition: filter 0.3s ease;
    }

    .page-five88vin__provider-item img:hover {
      filter: grayscale(0%);
    }

    .page-five88vin__game-item a,
    .page-five88vin__provider-item a {
      color: var(--page-five88vin-primary-color);
      text-decoration: none;
      font-weight: 600;
      display: block;
      padding: 5px 0;
      font-size: 0.95em;
    }

    .page-five88vin__game-item a:hover,
    .page-five88vin__provider-item a:hover {
      text-decoration: underline;
    }

    .page-five88vin__game-item p {
      color: var(--page-five88vin-white-text);
      font-size: 0.85em;
      margin: 0;
      padding: 0 5px;
    }

    .page-five88vin__faq-item {
      background-color: var(--page-five88vin-white-text);
      border: 1px solid #ddd;
      border-radius: var(--page-five88vin-border-radius);
      margin-bottom: 10px;
      text-align: left;
      overflow: hidden;
    }

    .page-five88vin__faq-question {
      padding: 15px;
      font-weight: bold;
      cursor: pointer;
      background-color: #f9f9f9;
      color: var(--page-five88vin-dark-bg);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .page-five88vin__faq-question::after {
      content: '+';
      font-size: 1.2em;
      transition: transform 0.3s ease;
    }

    .page-five88vin__faq-question.active::after {
      content: '-';
      transform: rotate(180deg);
    }

    .page-five88vin__faq-answer {
      padding: 0 15px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease-out;
      background-color: var(--page-five88vin-light-bg);
      color: var(--page-five88vin-text-color);
    }

    .page-five88vin__faq-answer p {
      padding: 15px 0;
      margin: 0;
    }

    .page-five88vin__faq-answer.active {
      max-height: 200px; /* Giả định chiều cao tối đa cho câu trả lời */
      padding: 15px;
    }

    @media (min-width: 768px) {
      .page-five88vin__container {
        padding: 0 var(--page-five88vin-padding-desktop);
      }

      .page-five88vin__title {
        font-size: 2.8em;
      }

      .page-five88vin__subtitle {
        font-size: 2.2em;
      }

      .page-five88vin__section {
        padding: var(--page-five88vin-padding-desktop) 0;
      }

      .page-five88vin__hero-banner {
        max-height: 500px;
      }

      .page-five88vin__game-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      }

      .page-five88vin__provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
    }