/* CSS cho trang win78 */
    :root {
      --page-win78-primary-color: #e44d26; /* Cam đậm */
      --page-win78-secondary-color: #333; /* Xám đậm */
      --page-win78-accent-color: #ffcc00; /* Vàng */
      --page-win78-text-color: #f8f8f8; /* Trắng nhạt */
      --page-win78-dark-text-color: #1a1a1a; /* Gần đen */
      --page-win78-background-light: #f0f2f5; /* Nền sáng */
      --page-win78-background-dark: #2c3e50; /* Nền tối */
      --page-win78-gradient-start: #ff7e5f;
      --page-win78-gradient-end: #feb47b;
    }

    .page-win78 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-win78-text-color);
      background-color: var(--page-win78-background-dark);
      padding-bottom: 80px; /* Khoảng trống cho nút đăng nhập nổi */
    }

    .page-win78-section {
      padding: 20px 15px;
      margin-bottom: 20px;
      background-color: var(--page-win78-secondary-color);
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }
    .page-win78-section.page-win78-hero {
      background: linear-gradient(135deg, var(--page-win78-gradient-start), var(--page-win78-gradient-end));
      padding: 0; /* Banner đã có padding riêng */
      border-radius: 0;
      box-shadow: none;
      margin-bottom: 0;
    }

    .page-win78-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    /* Tiêu đề */
    .page-win78 h1, .page-win78 h2, .page-win78 h3 {
      color: var(--page-win78-accent-color);
      text-align: center;
      margin-bottom: 20px;
      text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    }
    .page-win78 h1 {
      font-size: 2.2em;
      padding-top: 15px;
    }
    .page-win78 h2 {
      font-size: 1.8em;
      border-bottom: 2px solid var(--page-win78-primary-color);
      padding-bottom: 10px;
      display: inline-block;
      margin-left: auto;
      margin-right: auto;
    }
    .page-win78 h3 {
      font-size: 1.5em;
      color: var(--page-win78-text-color);
    }

    /* Đoạn văn */
    .page-win78 p {
      margin-bottom: 15px;
      color: var(--page-win78-text-color);
    }

    /* Banner */
    .page-win78-banner {
      width: 100%;
      overflow: hidden;
      position: relative;
      text-align: center;
      background-color: var(--page-win78-primary-color); /* Fallback màu */
      padding-bottom: 20px;
    }
    .page-win78-banner img {
      width: 100%;
      height: auto;
      max-height: 250px; /* Giới hạn chiều cao trên di động */
      object-fit: cover;
      display: block;
      margin: 0 auto;
    }
    .page-win78-banner-content {
      padding: 15px;
      text-align: center;
    }
    .page-win78-banner-content h1 {
      color: var(--page-win78-text-color);
      margin-top: 0;
      margin-bottom: 10px;
      font-size: 1.8em;
    }
    .page-win78-banner-content p {
      color: var(--page-win78-text-color);
      font-size: 1em;
      margin-bottom: 15px;
    }

    /* Nút đăng nhập nổi */
    .page-win78-floating-btn {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(90deg, #ff416c, #ff4b2b);
      color: white;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-size: 1.2em;
      font-weight: bold;
      box-shadow: 0 8px 15px rgba(0, 0, 0, 0.4);
      transition: all 0.3s ease;
      z-index: 1000;
      white-space: nowrap;
    }
    .page-win78-floating-btn:hover {
      background: linear-gradient(90deg, #ff4b2b, #ff416c);
      transform: translateX(-50%) translateY(-5px);
      box-shadow: 0 12px 20px rgba(0, 0, 0, 0.6);
    }

    /* Lưới sản phẩm/game */
    .page-win78-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 20px;
    }

    .page-win78-game-card {
      background-color: #3a4750; /* Nền thẻ game */
      border-radius: 10px;
      overflow: hidden;
      text-align: center;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
      transition: transform 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%; /* Đảm bảo chiều cao đồng nhất */
    }
    .page-win78-game-card:hover {
      transform: translateY(-5px);
    }
    .page-win78-game-card img {
      width: 100%;
      height: 120px; /* Chiều cao cố định cho ảnh trên di động */
      object-fit: cover;
      display: block;
    }
    .page-win78-game-card-content {
      padding: 10px;
    }
    .page-win78-game-card h3 {
      font-size: 1.1em;
      margin-top: 10px;
      margin-bottom: 5px;
      color: var(--page-win78-accent-color);
      line-height: 1.3;
    }
    .page-win78-game-card p {
      font-size: 0.85em;
      color: var(--page-win78-text-color);
      margin-bottom: 10px;
      flex-grow: 1; /* Đảm bảo nội dung đẩy xuống */
    }
    .page-win78-game-card a {
      display: inline-block;
      background-color: var(--page-win78-primary-color);
      color: var(--page-win78-text-color);
      padding: 8px 15px;
      border-radius: 20px;
      text-decoration: none;
      font-size: 0.9em;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }
    .page-win78-game-card a:hover {
      background-color: #c23b18;
    }

    /* Danh sách ưu điểm */
    .page-win78-feature-list {
      list-style: none;
      padding: 0;
      margin-top: 20px;
    }
    .page-win78-feature-list li {
      background-color: #3a4750;
      margin-bottom: 10px;
      padding: 15px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
      color: var(--page-win78-text-color);
    }
    .page-win78-feature-list li::before {
      content: '✔';
      color: var(--page-win78-accent-color);
      font-weight: bold;
      margin-right: 10px;
      font-size: 1.2em;
    }

    /* Nút chung */
    .page-win78-btn {
      display: block;
      width: fit-content;
      margin: 20px auto 0 auto;
      padding: 12px 25px;
      background-color: var(--page-win78-primary-color);
      color: var(--page-win78-text-color);
      text-decoration: none;
      border-radius: 30px;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
    }
    .page-win78-btn:hover {
      background-color: #c23b18;
      transform: translateY(-2px);
    }

    /* Responsive */
    @media (min-width: 768px) {
      .page-win78-banner img {
        max-height: 350px;
      }
      .page-win78-banner-content h1 {
        font-size: 2.5em;
      }
      .page-win78-banner-content p {
        font-size: 1.1em;
      }
      .page-win78 h1 {
        font-size: 2.8em;
      }
      .page-win78 h2 {
        font-size: 2.2em;
      }
      .page-win78-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      }
      .page-win78-game-card img {
        height: 150px;
      }
      .page-win78-game-card h3 {
        font-size: 1.2em;
      }
    }

    @media (min-width: 1024px) {
      .page-win78-banner img {
        max-height: 450px;
      }
      .page-win78-banner-content h1 {
        font-size: 3em;
      }
      .page-win78-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      }
      .page-win78-section {
        padding: 30px 20px;
      }
    }