/* Reset và biến cơ bản cho trang win789 */
    :root {
      --page-win789-primary-color: #e44d26; /* Cam đậm */
      --page-win789-secondary-color: #ff8c00; /* Cam sáng */
      --page-win789-accent-color: #ffd700; /* Vàng */
      --page-win789-dark-bg: #1a1a1a; /* Nền tối */
      --page-win789-light-text: #ffffff; /* Chữ sáng */
      --page-win789-gray-text: #cccccc; /* Chữ xám */
      --page-win789-border-color: #333333; /* Màu viền */
      --page-win789-button-hover: #ff6f00; /* Hover nút */
    }

    .page-win789 {
      font-family: 'Arial', sans-serif;
      color: var(--page-win789-light-text);
      background-color: var(--page-win789-dark-bg);
      line-height: 1.6;
      overflow-x: hidden; /* Ngăn chặn cuộn ngang */
    }

    .page-win789 a {
      color: var(--page-win789-secondary-color);
      text-decoration: none;
    }

    .page-win789 a:hover {
      text-decoration: underline;
      color: var(--page-win789-accent-color);
    }

    .page-win789 .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 15px;
    }

    /* Banner Section */
    .page-win789 .hero-banner {
      position: relative;
      width: 100%;
      overflow: hidden;
      background-color: #000; /* Đảm bảo nền tối nếu ảnh không tải */
    }

    .page-win789 .hero-banner img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover; /* Đảm bảo ảnh bao phủ diện tích */
      max-height: 400px; /* Giới hạn chiều cao banner trên desktop */
    }

    .page-win789 .hero-content {
      position: absolute;
      bottom: 0; /* Đặt nội dung ở dưới banner */
      left: 0;
      right: 0;
      padding: 15px;
      background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0)); /* Hiệu ứng mờ dần */
      color: var(--page-win789-light-text);
      text-align: center;
    }

    .page-win789 .hero-content h1 {
      font-size: 2.2em;
      margin-bottom: 10px;
      color: var(--page-win789-accent-color);
      text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    }

    .page-win789 .hero-content p {
      font-size: 1.1em;
      margin-bottom: 20px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-win789 .btn-primary {
      display: inline-block;
      background-color: var(--page-win789-primary-color);
      color: var(--page-win789-light-text);
      padding: 12px 25px;
      border-radius: 5px;
      text-transform: uppercase;
      font-weight: bold;
      transition: background-color 0.3s ease;
      font-size: 1em;
    }

    .page-win789 .btn-primary:hover {
      background-color: var(--page-win789-button-hover);
      text-decoration: none;
    }

    /* Floating Login Button */
    .page-win789 .floating-login-btn {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-win789-primary-color);
      color: var(--page-win789-light-text);
      padding: 15px 25px;
      border-radius: 50px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      text-transform: uppercase;
      font-weight: bold;
      z-index: 1000;
      display: flex;
      align-items: center;
      gap: 8px;
      transition: background-color 0.3s ease, transform 0.3s ease;
      font-size: 1.1em;
    }

    .page-win789 .floating-login-btn:hover {
      background-color: var(--page-win789-button-hover);
      transform: translateY(-3px);
      text-decoration: none;
    }

    .page-win789 .floating-login-btn .icon {
      font-size: 1.2em;
    }

    /* Sections General */
    .page-win789 .section {
      padding: 40px 0;
      text-align: center;
    }

    .page-win789 .section-title {
      font-size: 2em;
      margin-bottom: 30px;
      color: var(--page-win789-accent-color);
      position: relative;
      padding-bottom: 10px;
    }

    .page-win789 .section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: var(--page-win789-primary-color);
    }

    /* Game Categories / Product Display */
    .page-win789 .game-categories {
      background-color: #222;
      padding: 50px 0;
    }

    .page-win789 .game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-win789 .game-card {
      background-color: #333;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0,0,0,0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: 15px;
    }

    .page-win789 .game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px rgba(0,0,0,0.6);
    }

    .page-win789 .game-card img {
      width: 100%;
      height: 120px; /* Fixed height for consistency */
      object-fit: cover;
      display: block;
      border-bottom: 2px solid var(--page-win789-primary-color);
    }

    .page-win789 .game-card h3 {
      font-size: 1.1em;
      margin: 15px 10px 0;
      color: var(--page-win789-light-text);
    }

    .page-win789 .game-card h3 a {
        color: var(--page-win789-light-text);
        text-decoration: none;
    }

    .page-win789 .game-card h3 a:hover {
        color: var(--page-win789-secondary-color);
        text-decoration: underline;
    }

    /* About Section */
    .page-win789 .about-us {
      background-color: var(--page-win789-dark-bg);
      text-align: left;
    }

    .page-win789 .about-us p {
      margin-bottom: 15px;
      color: var(--page-win789-gray-text);
      font-size: 1em;
    }

    /* Promotions Section */
    .page-win789 .promotions {
      background-color: #2a2a2a;
    }

    .page-win789 .promo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-win789 .promo-card {
      background-color: #333;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0,0,0,0.4);
      text-align: left;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-win789 .promo-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px rgba(0,0,0,0.6);
    }

    .page-win789 .promo-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
      border-bottom: 2px solid var(--page-win789-primary-color);
    }

    .page-win789 .promo-card-content {
      padding: 20px;
    }

    .page-win789 .promo-card h3 {
      font-size: 1.3em;
      margin-top: 0;
      margin-bottom: 10px;
      color: var(--page-win789-accent-color);
    }

    .page-win789 .promo-card p {
      font-size: 0.95em;
      color: var(--page-win789-gray-text);
      margin-bottom: 15px;
    }

    .page-win789 .promo-card .btn-secondary {
      display: inline-block;
      background-color: var(--page-win789-secondary-color);
      color: var(--page-win789-light-text);
      padding: 10px 20px;
      border-radius: 5px;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-win789 .promo-card .btn-secondary:hover {
      background-color: var(--page-win789-button-hover);
      text-decoration: none;
    }

    /* Providers Section */
    .page-win789 .providers {
        background-color: var(--page-win789-dark-bg);
    }

    .page-win789 .provider-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: 15px;
        margin-top: 30px;
        align-items: center;
        justify-items: center;
    }

    .page-win789 .provider-logo {
        width: 80px;
        height: 50px;
        background-color: #333;
        border-radius: 5px;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    }

    .page-win789 .provider-logo img {
        max-width: 90%;
        max-height: 90%;
        object-fit: contain;
        filter: grayscale(100%) brightness(180%); /* Làm sáng và xám logo */
        transition: filter 0.3s ease;
    }

    .page-win789 .provider-logo:hover img {
        filter: grayscale(0%) brightness(100%); /* Hiển thị màu khi hover */
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-win789 .hero-content h1 {
        font-size: 1.8em;
      }
      .page-win789 .hero-content p {
        font-size: 1em;
      }
      .page-win789 .section-title {
        font-size: 1.8em;
      }
      .page-win789 .game-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-win789 .game-card img {
        height: 100px;
      }
      .page-win789 .floating-login-btn {
        padding: 12px 20px;
        font-size: 1em;
        bottom: 15px;
        right: 15px;
      }
    }

    @media (max-width: 480px) {
      .page-win789 .hero-content h1 {
        font-size: 1.5em;
      }
      .page-win789 .hero-content p {
        font-size: 0.9em;
      }
      .page-win789 .btn-primary {
        padding: 10px 20px;
        font-size: 0.9em;
      }
      .page-win789 .section {
        padding: 30px 0;
      }
      .page-win789 .section-title {
        font-size: 1.5em;
      }
      .page-win789 .game-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .page-win789 .game-card img {
        height: 90px;
      }
      .page-win789 .floating-login-btn {
        padding: 10px 18px;
        font-size: 0.9em;
        bottom: 10px;
        right: 10px;
      }
    }