/* Reset và các kiểu cơ bản cho trang w88 */
    .page-w88 {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        line-height: 1.6;
        color: #333;
        background-color: #f9f9f9;
        overflow-x: hidden;
    }

    .page-w88__container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
    }

    .page-w88__section {
        padding: 60px 0;
        text-align: center;
    }

    .page-w88__section:nth-of-type(even) {
        background-color: #f0f0f0;
    }

    .page-w88__heading {
        font-size: 2.5em;
        color: #0056b3;
        margin-bottom: 30px;
        position: relative;
        padding-bottom: 10px;
    }

    .page-w88__heading::after {
        content: '';
        position: absolute;
        left: 50%;
        bottom: 0;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background-color: #ffc107;
        border-radius: 2px;
    }

    .page-w88__sub-heading {
        font-size: 1.8em;
        color: #007bff;
        margin-bottom: 25px;
    }

    .page-w88__paragraph {
        font-size: 1.1em;
        margin-bottom: 20px;
        color: #555;
    }

    .page-w88__button {
        display: inline-block;
        background-color: #007bff;
        color: #fff;
        padding: 12px 25px;
        border-radius: 5px;
        text-decoration: none;
        font-weight: bold;
        transition: background-color 0.3s ease;
        border: none;
        cursor: pointer;
        font-size: 1em;
    }

    .page-w88__button:hover {
        background-color: #0056b3;
    }

    /* Phần Hero */
    .page-w88__hero-section {
        position: relative;
        background-color: #003366; /* Nền xanh đậm */
        color: #fff;
        padding-top: 120px; /* Điều chỉnh cho header cố định */
        padding-bottom: 60px;
        text-align: center;
        overflow: hidden;
    }

    .page-w88__hero-content {
        position: relative;
        z-index: 10;
        max-width: 900px;
        margin: 0 auto;
        padding: 20px;
    }

    .page-w88__hero-title {
        font-size: 3em;
        margin-bottom: 15px;
        color: #ffc107; /* Màu vàng nổi bật */
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-w88__hero-description {
        font-size: 1.3em;
        margin-bottom: 30px;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
    }

    .page-w88__hero-image-wrapper {
        margin-top: 30px;
        text-align: center;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }

    .page-w88__hero-image {
        max-width: 100%;
        height: auto;
        border-radius: 10px;
        box-shadow: 0 8px 16px rgba(0,0,0,0.3);
        display: block;
        margin: 0 auto;
    }

    /* Nút Đăng nhập nổi */
    .page-w88__floating-button {
        position: fixed;
        bottom: 20px;
        right: 20px;
        background-color: #dc3545; /* Màu đỏ nổi bật */
        color: #fff;
        padding: 15px 25px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: bold;
        font-size: 1.2em;
        box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        z-index: 1000;
        transition: background-color 0.3s ease, transform 0.3s ease;
        text-align: center;
        white-space: nowrap; /* Ngăn chặn ngắt dòng */
    }

    .page-w88__floating-button:hover {
        background-color: #c82333;
        transform: translateY(-3px);
    }

    /* Phần Khuyến mãi */
    .page-w88__promotions-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-w88__promotion-card {
        background-color: #fff;
        border-radius: 10px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        padding: 25px;
        text-align: left;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }

    .page-w88__promotion-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 16px rgba(0,0,0,0.15);
    }

    .page-w88__promotion-image {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
        margin-bottom: 20px;
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .page-w88__promotion-title {
        font-size: 1.5em;
        color: #0056b3;
        margin-bottom: 10px;
    }

    .page-w88__promotion-description {
        font-size: 1em;
        color: #666;
        margin-bottom: 20px;
        flex-grow: 1;
    }

    /* Phần Danh mục trò chơi */
    .page-w88__games-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); /* Đảm bảo kích thước tối thiểu 200px */
        gap: 25px;
        margin-top: 40px;
    }

    .page-w88__game-card {
        background-color: #fff;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.08);
        padding: 20px;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        text-decoration: none;
        color: #333;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }

    .page-w88__game-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 14px rgba(0,0,0,0.12);
    }

    .page-w88__game-icon {
        width: 200px; /* Đảm bảo kích thước tối thiểu 200px */
        height: 200px; /* Đảm bảo kích thước tối thiểu 200px */
        object-fit: contain;
        margin-bottom: 15px;
        border-radius: 8px;
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .page-w88__game-title {
        font-size: 1.2em;
        font-weight: bold;
        color: #0056b3;
        text-align: center;
    }

    /* Phần Nhà cung cấp game */
    .page-w88__providers-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); /* Đảm bảo kích thước tối thiểu 200px */
        gap: 20px;
        margin-top: 40px;
    }

    .page-w88__provider-item {
        background-color: #fff;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        padding: 15px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: transform 0.2s ease;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }

    .page-w88__provider-item:hover {
        transform: translateY(-3px);
    }

    .page-w88__provider-logo {
        width: 200px; /* Đảm bảo kích thước tối thiểu 200px */
        height: 200px; /* Đảm bảo kích thước tối thiểu 200px */
        object-fit: contain;
        margin-bottom: 10px;
        display: block;
        margin-left: auto;
        margin-right: auto;
    }

    .page-w88__provider-name {
        font-size: 1em;
        font-weight: bold;
        color: #333;
        text-align: center;
    }

    /* Phần Tại sao chọn chúng tôi */
    .page-w88__why-choose-us-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-w88__feature-card {
        background-color: #fff;
        border-radius: 10px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        padding: 30px;
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
    }

    .page-w88__feature-icon {
        width: 200px; /* Đảm bảo kích thước tối thiểu 200px */
        height: 200px; /* Đảm bảo kích thước tối thiểu 200px */
        object-fit: contain;
        margin-bottom: 20px;
        color: #007bff; /* Ví dụ màu cho biểu tượng SVG */
    }

    .page-w88__feature-title {
        font-size: 1.4em;
        color: #0056b3;
        margin-bottom: 10px;
    }

    .page-w88__feature-description {
        font-size: 1em;
        color: #666;
    }

    /* Phần Hướng dẫn */
    .page-w88__guide-steps {
        margin-top: 40px;
        text-align: left;
    }

    .page-w88__guide-step {
        display: flex;
        align-items: flex-start;
        margin-bottom: 30px;
        background-color: #fff;
        border-radius: 10px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        padding: 20px;
    }

    .page-w88__step-number {
        font-size: 2em;
        font-weight: bold;
        color: #ffc107;
        margin-right: 20px;
        flex-shrink: 0;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 2px solid #ffc107;
        border-radius: 50%;
    }

    .page-w88__step-content {
        flex-grow: 1;
    }

    .page-w88__step-title {
        font-size: 1.3em;
        color: #007bff;
        margin-bottom: 5px;
    }

    .page-w88__step-description {
        font-size: 1em;
        color: #555;
    }

    /* Phần Câu hỏi thường gặp (FAQ) */
    .page-w88__faq-list {
        margin-top: 40px;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
        text-align: left;
    }

    .page-w88__faq-item {
        background-color: #fff;
        border: 1px solid #ddd;
        border-radius: 8px;
        margin-bottom: 15px;
        overflow: hidden;
        box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    }

    .page-w88__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 20px;
        cursor: pointer;
        background-color: #f7f7f7;
        border-bottom: 1px solid #eee;
        transition: background-color 0.3s ease;
        user-select: none;
    }

    .page-w88__faq-question:hover {
        background-color: #e9e9e9;
    }

    .page-w88__faq-question h3 {
        margin: 0;
        font-size: 1.15em;
        color: #0056b3;
        pointer-events: none; /* Ngăn h3 chặn sự kiện click */
    }

    .page-w88__faq-toggle {
        font-size: 1.5em;
        font-weight: bold;
        color: #007bff;
        transition: transform 0.3s ease;
        pointer-events: none; /* Ngăn biểu tượng toggle chặn sự kiện click */
    }

    .page-w88__faq-item.active .page-w88__faq-toggle {
        transform: rotate(45deg); /* Xoay dấu '+' thành 'x' hoặc tương tự khi mở */
    }

    .page-w88__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 20px;
        opacity: 0;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
        color: #444;
        font-size: 1em;
        background-color: #fff;
    }

    .page-w88__faq-item.active .page-w88__faq-answer {
        max-height: 2000px !important; /* Đủ lớn để chứa nội dung */
        padding: 20px !important;
        opacity: 1;
    }

    /* Thiết kế đáp ứng (Responsive Design) */
    @media (max-width: 992px) {
        .page-w88__hero-title {
            font-size: 2.5em;
        }
        .page-w88__heading {
            font-size: 2em;
        }
        .page-w88__sub-heading {
            font-size: 1.5em;
        }
    }

    @media (max-width: 768px) {
        .page-w88__hero-section {
            padding-top: 100px; /* Điều chỉnh di động cho header cố định */
        }
        .page-w88__hero-title {
            font-size: 2em;
        }
        .page-w88__hero-description {
            font-size: 1.1em;
        }
        .page-w88__heading {
            font-size: 1.8em;
        }
        .page-w88__sub-heading {
            font-size: 1.3em;
        }
        .page-w88__section {
            padding: 40px 0;
        }
        .page-w88__promotions-grid,
        .page-w88__games-grid,
        .page-w88__providers-grid,
        .page-w88__why-choose-us-grid {
            grid-template-columns: 1fr;
        }
        .page-w88__game-icon,
        .page-w88__provider-logo,
        .page-w88__feature-icon {
            width: 200px !important; /* Đảm bảo kích thước tối thiểu */
            height: 200px !important; /* Đảm bảo kích thước tối thiểu */
        }
        .page-w88__floating-button {
            font-size: 1em;
            padding: 12px 20px;
            bottom: 15px;
            right: 15px;
        }
        .page-w88__guide-step {
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .page-w88__step-number {
            margin-right: 0;
            margin-bottom: 15px;
        }
        .page-w88__faq-question {
            padding: 12px 15px;
        }
        .page-w88__faq-question h3 {
            font-size: 1em;
        }
        .page-w88__faq-answer {
            padding: 0 15px;
        }
        .page-w88__faq-item.active .page-w88__faq-answer {
            padding: 15px !important;
        }

        /* Tối ưu hóa hình ảnh đáp ứng trên di động */
        .page-w88 img {
            max-width: 100% !important;
            height: auto !important;
        }
        .page-w88__hero-image-wrapper,
        .page-w88__promotion-card,
        .page-w88__game-card,
        .page-w88__provider-item,
        .page-w88__feature-card {
            width: 100% !important;
            max-width: 100% !important;
            overflow: hidden !important;
            box-sizing: border-box !important;
        }
    }

    @media (max-width: 480px) {
        .page-w88__hero-title {
            font-size: 1.8em;
        }
        .page-w88__hero-description {
            font-size: 1em;
        }
        .page-w88__heading {
            font-size: 1.5em;
        }
        .page-w88__button {
            padding: 10px 20px;
            font-size: 0.9em;
        }
    }