:root {
      --page-sunwin__primary-color: #f7b32b; /* Màu vàng cam */
      --page-sunwin__secondary-color: #e53935; /* Màu đỏ */
      --page-sunwin__dark-background: #1a1a2e; /* Nền tối */
      --page-sunwin__dark-background-light: #2c2c47; /* Nền tối nhạt hơn */
      --page-sunwin__text-color: #ffffff; /* Màu chữ trắng */
      --page-sunwin__text-light-color: #f0f0f0; /* Màu chữ trắng nhạt */
      --page-sunwin__border-color: #4a4a6e; /* Màu viền */
      --page-sunwin__accent-color: #6a0572; /* Màu tím nhấn */
      --page-sunwin__shadow-color: rgba(0, 0, 0, 0.5);
    }

    body {
      margin: 0;
      font-family: 'Arial', sans-serif;
      background-color: var(--page-sunwin__dark-background);
      color: var(--page-sunwin__text-color);
      line-height: 1.6;
    }

    .page-sunwin {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-sunwin__hero-section {
      text-align: center;
      padding: 10px 20px 40px; /* Thêm padding-top để tránh bị che bởi header cố định */
      margin-bottom: 40px;
      background-color: var(--page-sunwin__dark-background-light);
      border-radius: 15px;
      overflow: hidden;
      position: relative;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }
    @media (max-width: 768px) {
      .page-sunwin__hero-section {
        padding-top: 10px; /* Thêm padding-top cho mobile */
      }
    }

    .page-sunwin__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 10px;
      margin-bottom: 20px;
      object-fit: cover;
      width: 100%; /* Đảm bảo hình ảnh chiếm toàn bộ chiều rộng */
      max-height: 400px; /* Giới hạn chiều cao để không quá lớn */
    }

    .page-sunwin__hero-content {
      position: relative;
      z-index: 2;
      padding: 0 20px;
    }

    .page-sunwin__hero-title {
      font-size: 2.8em;
      color: var(--page-sunwin__primary-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px var(--page-sunwin__shadow-color);
      line-height: 1.2;
    }

    .page-sunwin__hero-description {
      font-size: 1.2em;
      color: var(--page-sunwin__text-light-color);
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-sunwin__hero-buttons {
      display: flex;
      gap: 20px;
      justify-content: center;
      flex-wrap: wrap;
    }

    .page-sunwin__button {
      display: inline-block;
      padding: 15px 30px;
      background-color: var(--page-sunwin__primary-color);
      color: var(--page-sunwin__dark-background);
      text-decoration: none;
      border-radius: 8px;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px var(--page-sunwin__shadow-color);
      border: none;
      cursor: pointer;
    }

    .page-sunwin__button--secondary {
      background-color: var(--page-sunwin__secondary-color);
      color: var(--page-sunwin__text-color);
    }

    .page-sunwin__button:hover {
      background-color: var(--page-sunwin__accent-color);
      transform: translateY(-3px);
      color: var(--page-sunwin__text-color);
    }
    .page-sunwin__button--secondary:hover {
      background-color: #c0392b; /* Màu đỏ sẫm hơn */
    }

    .page-sunwin__section-title {
      font-size: 2.2em;
      color: var(--page-sunwin__primary-color);
      text-align: center;
      margin: 60px 0 30px;
      position: relative;
      padding-bottom: 10px;
      text-shadow: 1px 1px 3px var(--page-sunwin__shadow-color);
    }

    .page-sunwin__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-sunwin__secondary-color);
      border-radius: 2px;
    }

    .page-sunwin__text-block {
      background-color: var(--page-sunwin__dark-background-light);
      padding: 30px;
      border-radius: 15px;
      margin-bottom: 40px;
      box-shadow: 0 5px 15px var(--page-sunwin__shadow-color);
    }

    .page-sunwin__text-block p {
      margin-bottom: 15px;
      color: var(--page-sunwin__text-light-color);
      font-size: 1.1em;
    }
    .page-sunwin__text-block strong {
      color: var(--page-sunwin__primary-color);
    }

    .page-sunwin__game-categories,
    .page-sunwin__game-providers,
    .page-sunwin__payment-methods,
    .page-sunwin__social-media {
      display: grid;
      gap: 25px;
      margin-bottom: 40px;
    }

    .page-sunwin__game-categories {
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .page-sunwin__category-card {
      background-color: var(--page-sunwin__dark-background-light);
      border-radius: 15px;
      overflow: hidden;
      text-align: center;
      box-shadow: 0 4px 12px var(--page-sunwin__shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .page-sunwin__category-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px var(--page-sunwin__shadow-color);
    }

    .page-sunwin__category-image-wrapper {
      width: 100%;
      height: 200px; /* Cố định chiều cao cho hình ảnh */
      overflow: hidden;
      position: relative;
    }

    .page-sunwin__category-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

    .page-sunwin__category-card:hover .page-sunwin__category-image {
      transform: scale(1.05);
    }

    .page-sunwin__category-info {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .page-sunwin__category-title {
      font-size: 1.4em;
      color: var(--page-sunwin__primary-color);
      margin-bottom: 15px;
      text-decoration: none;
      display: block;
      font-weight: bold;
    }

    .page-sunwin__category-title:hover {
      color: var(--page-sunwin__accent-color);
    }

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

    .page-sunwin__link-button {
      display: inline-block;
      padding: 10px 20px;
      background-color: var(--page-sunwin__secondary-color);
      color: var(--page-sunwin__text-color);
      text-decoration: none;
      border-radius: 5px;
      font-size: 0.9em;
      transition: background-color 0.3s ease;
      margin-top: auto; /* Đẩy nút xuống dưới cùng */
    }

    .page-sunwin__link-button:hover {
      background-color: var(--page-sunwin__accent-color);
    }

    .page-sunwin__game-providers {
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .page-sunwin__provider-logo {
      background-color: var(--page-sunwin__dark-background-light);
      padding: 15px;
      border-radius: 10px;
      text-align: center;
      box-shadow: 0 2px 8px var(--page-sunwin__shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-sunwin__provider-logo:hover {
      transform: translateY(-3px);
      box-shadow: 0 4px 12px var(--page-sunwin__shadow-color);
    }

    .page-sunwin__provider-image {
      max-width: 100%;
      height: 80px; /* Cố định chiều cao cho logo nhà cung cấp */
      object-fit: contain;
      display: block;
      margin: 0 auto;
    }

    .page-sunwin__payment-methods {
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      justify-items: center;
    }

    .page-sunwin__payment-item {
      background-color: var(--page-sunwin__dark-background-light);
      padding: 15px;
      border-radius: 10px;
      text-align: center;
      box-shadow: 0 2px 8px var(--page-sunwin__shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      width: 100%;
      max-width: 150px;
    }
    .page-sunwin__payment-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 4px 12px var(--page-sunwin__shadow-color);
    }

    .page-sunwin__payment-image {
      max-width: 100%;
      height: 60px; /* Cố định chiều cao cho logo thanh toán */
      object-fit: contain;
      display: block;
      margin: 0 auto;
    }

    .page-sunwin__social-media {
      grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      justify-items: center;
    }

    .page-sunwin__social-item {
      background-color: var(--page-sunwin__dark-background-light);
      padding: 10px;
      border-radius: 10px;
      text-align: center;
      box-shadow: 0 2px 8px var(--page-sunwin__shadow-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      width: 100%;
      max-width: 100px;
    }
    .page-sunwin__social-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 4px 12px var(--page-sunwin__shadow-color);
    }

    .page-sunwin__social-image {
      max-width: 100%;
      height: 50px; /* Cố định chiều cao cho icon mạng xã hội */
      object-fit: contain;
      display: block;
      margin: 0 auto;
    }

    /* Floating buttons */
    .page-sunwin__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 15px;
      z-index: 1000;
    }

    .page-sunwin__floating-button {
      background-color: var(--page-sunwin__primary-color);
      color: var(--page-sunwin__dark-background);
      padding: 12px 20px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      text-align: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      transition: background-color 0.3s ease, transform 0.2s ease;
      white-space: nowrap;
    }

    .page-sunwin__floating-button--register {
      background-color: var(--page-sunwin__primary-color);
    }

    .page-sunwin__floating-button--login {
      background-color: var(--page-sunwin__secondary-color);
      color: var(--page-sunwin__text-color);
    }

    .page-sunwin__floating-button:hover {
      transform: scale(1.05);
      opacity: 0.9;
    }

    /* FAQ Section */
    .page-sunwin__faq-section {
      margin-top: 60px;
    }

    .page-sunwin__faq-item {
      background-color: var(--page-sunwin__dark-background-light);
      border-radius: 10px;
      margin-bottom: 15px;
      box-shadow: 0 2px 10px var(--page-sunwin__shadow-color);
      overflow: hidden;
    }

    .page-sunwin__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: var(--page-sunwin__dark-background-light);
      color: var(--page-sunwin__text-color);
      font-size: 1.1em;
      font-weight: bold;
      border-bottom: 1px solid var(--page-sunwin__border-color);
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-sunwin__faq-question:hover {
      background-color: rgba(var(--page-sunwin__primary-color), 0.1);
    }

    .page-sunwin__faq-question h3 {
      margin: 0;
      color: var(--page-sunwin__primary-color);
      pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
      flex-grow: 1;
    }

    .page-sunwin__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-sunwin__secondary-color);
      margin-left: 15px;
      pointer-events: none; /* Ngăn chặn toggle icon chặn sự kiện click */
      transition: transform 0.3s ease;
    }

    .page-sunwin__faq-item.active .page-sunwin__faq-toggle {
      transform: rotate(45deg); /* Biến '+' thành 'x' hoặc '-' */
    }

    .page-sunwin__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Padding ban đầu */
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: var(--page-sunwin__text-light-color);
      font-size: 1em;
      line-height: 1.6;
    }

    .page-sunwin__faq-item.active .page-sunwin__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px !important; /* Padding khi mở */
      opacity: 1;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-sunwin {
        padding: 15px;
      }
      .page-sunwin__hero-title {
        font-size: 2em;
      }
      .page-sunwin__hero-description {
        font-size: 1em;
      }
      .page-sunwin__button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-sunwin__hero-buttons {
        flex-direction: column;
        gap: 15px;
      }
      .page-sunwin__section-title {
        font-size: 1.8em;
        margin-top: 40px;
        margin-bottom: 20px;
      }
      .page-sunwin__text-block {
        padding: 20px;
      }
      .page-sunwin__game-categories {
        grid-template-columns: 1fr;
      }
      .page-sunwin__game-providers,
      .page-sunwin__payment-methods,
      .page-sunwin__social-media {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
      .page-sunwin__category-title {
        font-size: 1.2em;
      }
      .page-sunwin__floating-buttons {
        bottom: 15px;
        right: 15px;
        gap: 10px;
      }
      .page-sunwin__floating-button {
        padding: 10px 18px;
        font-size: 0.9em;
      }
      .page-sunwin__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }
      .page-sunwin__faq-answer {
        padding: 0 15px;
      }
      .page-sunwin__faq-item.active .page-sunwin__faq-answer {
        padding: 15px !important;
      }
    }

    /* General image responsive optimization */
    .page-sunwin img {
      max-width: 100%;
      height: auto;
      box-sizing: border-box;
    }
    .page-sunwin .page-sunwin__category-image-wrapper,
    .page-sunwin .page-sunwin__provider-logo,
    .page-sunwin .page-sunwin__payment-item,
    .page-sunwin .page-sunwin__social-item {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }
    @media (max-width: 768px) {
      .page-sunwin img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-sunwin .page-sunwin__category-image-wrapper,
      .page-sunwin .page-sunwin__provider-logo,
      .page-sunwin .page-sunwin__payment-item,
      .page-sunwin .page-sunwin__social-item {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }