
    /* Reset và các thuộc tính cơ bản cho trang */
    .page-suncity777 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: #e0e0e0; /* Màu chữ xám nhạt */
      background-color: #1a1a1a; /* Nền tối */
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    .page-suncity777__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    /* Định dạng tiêu đề */
    .page-suncity777__heading-primary {
      font-size: 3em;
      color: #ffcc00; /* Màu vàng kim */
      text-align: center;
      margin-bottom: 20px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-suncity777__heading-secondary {
      font-size: 2.2em;
      color: #ffcc00;
      text-align: center;
      margin-top: 40px;
      margin-bottom: 25px;
      position: relative;
      padding-bottom: 10px;
    }
    .page-suncity777__heading-secondary::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 3px;
      background-color: #ffcc00;
      border-radius: 2px;
    }

    .page-suncity777__heading-tertiary {
      font-size: 1.6em;
      color: #fff;
      margin-top: 30px;
      margin-bottom: 15px;
      border-left: 5px solid #ffcc00;
      padding-left: 15px;
    }

    /* Đoạn văn bản */
    .page-suncity777__paragraph {
      font-size: 1.1em;
      margin-bottom: 15px;
      color: #e0e0e0;
    }

    /* Nút bấm */
    .page-suncity777__button {
      display: inline-block;
      background-color: #e60000; /* Màu đỏ */
      color: #fff;
      padding: 12px 25px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      text-align: center;
    }

    .page-suncity777__button:hover {
      background-color: #ff3333;
      transform: translateY(-2px);
    }

    /* Phần Hero Banner */
    .page-suncity777__hero-section {
      position: relative;
      width: 100%;
      height: 500px; /* Chiều cao cố định cho banner */
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
      padding-top: 10px; /* Khoảng cách cho thanh điều hướng cố định */
    }

    .page-suncity777__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
    }

    .page-suncity777__hero-content {
      position: relative;
      z-index: 2;
      color: #fff;
      padding: 20px;
      background-color: rgba(0, 0, 0, 0.5);
      border-radius: 10px;
    }

    .page-suncity777__hero-title {
      font-size: 3.5em;
      margin-bottom: 15px;
      color: #ffcc00;
      text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.7);
    }

    .page-suncity777__hero-subtitle {
      font-size: 1.5em;
      margin-bottom: 30px;
      color: #fff;
    }

    /* Nút Đăng Nhập Nổi */
    .page-suncity777__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      background-color: #ffcc00;
      color: #1a1a1a;
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
      animation: page-suncity777__pulse 1.5s infinite;
      display: flex;
      align-items: center;
      gap: 10px;
      border: none;
      cursor: pointer;
    }

    .page-suncity777__floating-button:hover {
      background-color: #ffdb4d;
      animation: none;
    }

    @keyframes page-suncity777__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* Các phần trò chơi */
    .page-suncity777__games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-suncity777__game-card {
      background-color: #2a2a2a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .page-suncity777__game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    }

    .page-suncity777__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-bottom: 1px solid #3a3a3a;
    }
    .page-suncity777__game-image img {
      width: 100%;
      max-width: 100%;
      height: 100%;
      object-fit: cover;
      box-sizing: border-box;
    }

    .page-suncity777__game-title {
      font-size: 1.4em;
      color: #ffcc00;
      padding: 15px;
      flex-grow: 1;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* Phần giới thiệu */
    .page-suncity777__info-section {
      background-color: #222;
      padding: 40px 20px;
      margin-top: 40px;
      border-radius: 12px;
      box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.5);
    }

    .page-suncity777__info-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-suncity777__info-item {
      background-color: #2a2a2a;
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
      text-align: center;
    }

    .page-suncity777__info-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }
    .page-suncity777__info-icon img {
      width: 100%;
      max-width: 100%;
      height: auto;
      object-fit: contain;
      box-sizing: border-box;
    }

    .page-suncity777__info-title {
      font-size: 1.5em;
      color: #ffcc00;
      margin-bottom: 10px;
    }

    .page-suncity777__info-description {
      font-size: 1em;
      color: #ccc;
    }

    /* Hướng dẫn */
    .page-suncity777__guide-section {
      margin-top: 40px;
    }

    .page-suncity777__guide-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-suncity777__guide-step {
      background-color: #2a2a2a;
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
      text-align: center;
      flex: 1 1 calc(33% - 40px); /* 3 cột trên desktop */
      min-width: 280px;
      max-width: 350px;
    }

    .page-suncity777__step-number {
      font-size: 2.5em;
      color: #e60000;
      font-weight: bold;
      margin-bottom: 10px;
    }

    .page-suncity777__step-title {
      font-size: 1.4em;
      color: #ffcc00;
      margin-bottom: 10px;
    }

    .page-suncity777__step-description {
      font-size: 1em;
      color: #ccc;
    }

    /* FAQ */
    .page-suncity777__faq-section {
      margin-top: 50px;
      background-color: #222;
      padding: 40px 20px;
      border-radius: 12px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-suncity777__faq-list {
      margin-top: 30px;
    }

    .page-suncity777__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-suncity777__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      background-color: #333;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-suncity777__faq-question:hover {
      background-color: #444;
    }

    .page-suncity777__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: #fff;
      pointer-events: none; /* Ngăn h3 chặn sự kiện click */
    }

    .page-suncity777__faq-toggle {
      font-size: 1.8em;
      color: #ffcc00;
      font-weight: bold;
      pointer-events: none; /* Ngăn biểu tượng chặn sự kiện click */
      transition: transform 0.3s ease;
      width: 24px; /* Đảm bảo kích thước cố định */
      text-align: center;
      line-height: 1; /* Căn giữa ký tự */
    }

    .page-suncity777__faq-item.active .page-suncity777__faq-toggle {
      transform: rotate(45deg); /* Thay đổi + thành X */
      color: #e60000;
    }
    .page-suncity777__faq-item.active .page-suncity777__faq-toggle::before {
      content: '−'; /* Thay đổi + thành - */
    }
    .page-suncity777__faq-toggle::before {
      content: '+';
    }


    .page-suncity777__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: #2a2a2a;
      color: #ccc;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-suncity777__faq-item.active .page-suncity777__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa nội dung */
      padding: 20px !important;
      opacity: 1;
    }

    /* Thiết kế Responsive */
    @media (max-width: 1024px) {
      .page-suncity777__hero-title {
        font-size: 3em;
      }
      .page-suncity777__hero-subtitle {
        font-size: 1.3em;
      }
    }

    @media (max-width: 768px) {
      .page-suncity777__container {
        padding: 15px;
      }
      .page-suncity777__hero-section {
        height: 400px;
        padding-top: 10px; /* Điều chỉnh cho di động */
      }
      .page-suncity777__hero-title {
        font-size: 2.5em;
      }
      .page-suncity777__hero-subtitle {
        font-size: 1.1em;
      }
      .page-suncity777__heading-primary {
        font-size: 2.2em;
      }
      .page-suncity777__heading-secondary {
        font-size: 1.8em;
      }
      .page-suncity777__heading-tertiary {
        font-size: 1.4em;
      }
      .page-suncity777__paragraph {
        font-size: 1em;
      }
      .page-suncity777__button {
        padding: 10px 20px;
        font-size: 1em;
      }
      .page-suncity777__games-grid {
        grid-template-columns: 1fr;
      }
      .page-suncity777__info-grid {
        grid-template-columns: 1fr;
      }
      .page-suncity777__guide-step {
        flex: 1 1 100%;
        max-width: 100%;
      }
      .page-suncity777__floating-button {
        padding: 12px 20px;
        font-size: 1em;
        bottom: 15px;
        right: 15px;
      }

      /* Tối ưu hình ảnh cho di động */
      .page-suncity777 img {
          max-width: 100% !important;
          height: auto !important;
      }
      .page-suncity777__game-image,
      .page-suncity777__info-icon {
          width: 100% !important;
          max-width: 100% !important;
          overflow: hidden !important;
          box-sizing: border-box !important;
      }
      .page-suncity777__game-image img,
      .page-suncity777__info-icon img {
          width: 100% !important;
          max-width: 100% !important;
          height: auto !important;
          object-fit: cover !important;
          box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-suncity777__hero-section {
        height: 350px;
      }
      .page-suncity777__hero-title {
        font-size: 2em;
      }
      .page-suncity777__hero-subtitle {
        font-size: 1em;
      }
      .page-suncity777__heading-primary {
        font-size: 1.8em;
      }
      .page-suncity777__floating-button {
        font-size: 0.9em;
        padding: 10px 15px;
      }
    }
  