:root {
      --primary-color: #e0b300; /* Vàng hổ phách */
      --secondary-color: #333; /* Đen đậm */
      --accent-color: #ff4500; /* Cam đỏ */
      --text-color: #f8f8f8; /* Trắng ngà */
      --background-dark: #1a1a1a; /* Nền tối */
      --background-light: #2c2c2c; /* Nền sáng hơn */
      --border-color: #555; /* Viền xám */
      --button-bg-hover: #ff6a00; /* Cam đỏ sáng hơn */
    }

    body {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--text-color);
      background-color: var(--background-dark);
    }

    .page-qq888 {
      padding-top: 120px; /* Thêm khoảng đệm để tránh bị che bởi header cố định */
      background-color: var(--background-dark);
      color: var(--text-color);
    }

    @media (max-width: 768px) {
      .page-qq888 {
        padding-top: 100px; /* Điều chỉnh cho di động */
      }
    }

    .page-qq888__hero-section {
      text-align: center;
      padding: 20px 0 40px;
      background-color: var(--background-light);
      position: relative;
      overflow: hidden;
      border-bottom: 2px solid var(--primary-color);
    }

    .page-qq888__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      object-fit: cover;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    }
    .page-qq888__hero-image-container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      overflow: hidden;
      box-sizing: border-box;
      padding: 0 15px;
    }

    .page-qq888__hero-content {
      position: relative;
      z-index: 1;
      padding: 20px 15px;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-qq888__main-title {
      font-size: 2.8em;
      color: var(--primary-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      font-weight: bold;
    }

    .page-qq888__hero-description {
      font-size: 1.2em;
      color: var(--text-color);
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-qq888__cta-button {
      display: inline-block;
      background-color: var(--accent-color);
      color: #fff;
      padding: 15px 30px;
      border-radius: 30px;
      text-decoration: none;
      font-size: 1.3em;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      animation: pulse 2s infinite;
    }

    .page-qq888__cta-button:hover {
      background-color: var(--button-bg-hover);
      transform: translateY(-3px);
    }

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

    .page-qq888__floating-login {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      background-color: var(--primary-color);
      color: var(--background-dark);
      padding: 12px 25px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
      transition: background-color 0.3s ease, transform 0.2s ease;
      animation: floatButton 2s infinite ease-in-out;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .page-qq888__floating-login:hover {
      background-color: #ffc107; /* Vàng sáng hơn */
      transform: translateY(-5px);
    }

    @keyframes floatButton {
      0% { transform: translateY(0); }
      50% { transform: translateY(-10px); }
      100% { transform: translateY(0); }
    }

    .page-qq888__section {
      padding: 60px 20px;
      margin-bottom: 20px;
      background-color: var(--background-dark);
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
      text-align: center;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-qq888__section-title {
      font-size: 2.2em;
      color: var(--primary-color);
      margin-bottom: 40px;
      position: relative;
      display: inline-block;
    }

    .page-qq888__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: -10px;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--accent-color);
      border-radius: 2px;
    }

    .page-qq888__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-qq888__card {
      background-color: var(--background-light);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: left;
      border: 1px solid var(--border-color);
    }

    .page-qq888__card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
    }

    .page-qq888__card-image {
      width: 100%;
      max-width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      border-bottom: 1px solid var(--border-color);
    }
    .page-qq888__card-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-qq888__card-content {
      padding: 20px;
    }

    .page-qq888__card-title {
      font-size: 1.4em;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-qq888__card-title a {
      color: var(--primary-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .page-qq888__card-title a:hover {
      color: var(--accent-color);
    }

    .page-qq888__card-description {
      font-size: 0.95em;
      color: var(--text-color);
      margin-bottom: 15px;
    }

    .page-qq888__read-more {
      display: inline-block;
      color: var(--accent-color);
      text-decoration: none;
      font-weight: bold;
      transition: color 0.3s ease;
    }

    .page-qq888__read-more:hover {
      color: var(--button-bg-hover);
    }

    .page-qq888__game-provider-logo {
      width: 100%;
      max-width: 150px;
      height: auto;
      object-fit: contain;
      padding: 15px;
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
    }
    .page-qq888__game-provider-logo-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 120px; /* Ensure logos have space */
    }

    .page-qq888__game-provider-logo:hover {
      transform: scale(1.1);
    }

    .page-qq888__faq-section {
      text-align: left;
    }

    .page-qq888__faq-item {
      background-color: var(--background-light);
      border: 1px solid var(--border-color);
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .page-qq888__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: var(--secondary-color);
      color: var(--primary-color);
      font-size: 1.2em;
      font-weight: bold;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-qq888__faq-question:hover {
      background-color: #444;
    }

    .page-qq888__faq-question h3 {
      margin: 0;
      font-size: 1em;
      color: var(--primary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-qq888__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--accent-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-qq888__faq-item.active .page-qq888__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or similar */
      color: var(--primary-color);
    }
    .page-qq888__faq-item.active .page-qq888__faq-toggle::before {
      content: '−'; /* Change '+' to '-' */
      transform: rotate(0deg);
    }
    .page-qq888__faq-toggle::before {
      content: '+';
    }


    .page-qq888__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      background-color: var(--background-light);
      color: var(--text-color);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-qq888__faq-item.active .page-qq888__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-qq888__faq-answer p {
      margin: 0 0 10px 0;
    }
    .page-qq888__faq-answer p:last-child {
      margin-bottom: 0;
    }

    .page-qq888__cta-download {
      text-align: center;
      padding: 60px 20px;
      background-color: var(--secondary-color);
      border-top: 2px solid var(--accent-color);
      margin-top: 40px;
    }

    .page-qq888__cta-download-title {
      font-size: 2.5em;
      color: var(--primary-color);
      margin-bottom: 20px;
    }

    .page-qq888__download-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-top: 30px;
    }

    .page-qq888__download-button {
      display: inline-flex;
      align-items: center;
      background-color: var(--primary-color);
      color: var(--background-dark);
      padding: 15px 30px;
      border-radius: 30px;
      text-decoration: none;
      font-size: 1.2em;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
    }

    .page-qq888__download-button:hover {
      background-color: #ffc107;
      transform: translateY(-3px);
    }

    .page-qq888__download-button svg {
      margin-right: 10px;
      width: 24px;
      height: 24px;
      fill: var(--background-dark);
    }

    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .page-qq888__main-title {
        font-size: 2.4em;
      }
      .page-qq888__hero-description {
        font-size: 1.1em;
      }
      .page-qq888__cta-button {
        font-size: 1.2em;
        padding: 12px 25px;
      }
      .page-qq888__section-title {
        font-size: 2em;
      }
      .page-qq888__card-title {
        font-size: 1.3em;
      }
    }

    @media (max-width: 768px) {
      .page-qq888__hero-section {
        padding: 15px 0 30px;
      }
      .page-qq888__main-title {
        font-size: 2em;
      }
      .page-qq888__hero-description {
        font-size: 1em;
      }
      .page-qq888__cta-button {
        font-size: 1.1em;
        padding: 10px 20px;
      }
      .page-qq888__floating-login {
        bottom: 15px;
        right: 15px;
        padding: 10px 20px;
        font-size: 1em;
      }
      .page-qq888__section {
        padding: 40px 15px;
      }
      .page-qq888__section-title {
        font-size: 1.8em;
        margin-bottom: 30px;
      }
      .page-qq888__grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .page-qq888__card-image {
        height: 180px;
      }
      .page-qq888__card-content {
        padding: 15px;
      }
      .page-qq888__card-title {
        font-size: 1.2em;
      }
      .page-qq888__game-provider-logo {
        max-width: 120px;
        padding: 10px;
      }
      .page-qq888__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
      }
      .page-qq888__faq-answer {
        padding: 0 20px;
      }
      .page-qq888__faq-item.active .page-qq888__faq-answer {
        padding: 15px 20px !important;
      }
      .page-qq888__cta-download-title {
        font-size: 2em;
      }
      .page-qq888__download-button {
        font-size: 1.1em;
        padding: 12px 25px;
      }

      /* Image responsive optimization */
      .page-qq888__hero-image,
      .page-qq888__card-image,
      .page-qq888__game-provider-logo {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-qq888__hero-image-container,
      .page-qq888__card-image-container,
      .page-qq888__game-provider-logo-container {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }