.page-ty-le-bong-da-88 {
        font-family: 'Arial', sans-serif;
        color: #333;
        line-height: 1.6;
        background-color: #f4f7f6;
    }

    .page-ty-le-bong-da-88__container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    .page-ty-le-bong-da-88__hero-section {
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #fff;
        text-align: center;
        padding: 80px 20px;
        position: relative;
        overflow: hidden;
        padding-top: 10px; /* Small top padding, assuming body padding handles header offset */
    }

    .page-ty-le-bong-da-88__hero-image {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.3;
        z-index: 1;
    }

    .page-ty-le-bong-da-88__hero-content {
        position: relative;
        z-index: 2;
        max-width: 900px;
        margin: 0 auto;
    }

    .page-ty-le-bong-da-88__hero-title {
        font-size: 3.5em;
        margin-bottom: 20px;
        font-weight: bold;
        color: #ffcc00; /* Gold color for contrast */
    }

    .page-ty-le-bong-da-88__hero-subtitle {
        font-size: 1.5em;
        margin-bottom: 30px;
        color: #e0e0e0;
    }

    .page-ty-le-bong-da-88__button {
        display: inline-block;
        background-color: #ffcc00; /* Gold color */
        color: #0f2027;
        padding: 15px 30px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: bold;
        font-size: 1.1em;
        transition: background-color 0.3s ease, transform 0.3s ease;
        border: none;
        cursor: pointer;
    }

    .page-ty-le-bong-da-88__button:hover {
        background-color: #e6b800;
        transform: translateY(-3px);
    }

    .page-ty-le-bong-da-88__section {
        padding: 60px 20px;
        background-color: #fff;
        margin-bottom: 20px;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    }

    .page-ty-le-bong-da-88__section--dark {
        background-color: #2c5364;
        color: #fff;
    }

    .page-ty-le-bong-da-88__section-title {
        font-size: 2.5em;
        color: #0f2027;
        text-align: center;
        margin-bottom: 40px;
        font-weight: bold;
    }

    .page-ty-le-bong-da-88__section--dark .page-ty-le-bong-da-88__section-title {
        color: #ffcc00;
    }

    .page-ty-le-bong-da-88__text-content {
        font-size: 1.1em;
        text-align: center;
        max-width: 800px;
        margin: 0 auto 30px auto;
    }

    .page-ty-le-bong-da-88__feature-list {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 30px;
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .page-ty-le-bong-da-88__feature-item {
        background-color: #f9f9f9;
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        text-align: center;
        flex: 1 1 calc(33% - 40px);
        min-width: 280px;
        box-sizing: border-box;
        transition: transform 0.3s ease;
    }

    .page-ty-le-bong-da-88__feature-item:hover {
        transform: translateY(-5px);
    }

    .page-ty-le-bong-da-88__feature-item-title {
        font-size: 1.5em;
        color: #0f2027;
        margin-bottom: 15px;
        font-weight: bold;
    }

    .page-ty-le-bong-da-88__feature-item-description {
        color: #555;
        font-size: 1em;
    }

    .page-ty-le-bong-da-88__image-wrapper {
        text-align: center;
        margin: 40px 0;
    }

    .page-ty-le-bong-da-88__image {
        max-width: 100%;
        height: auto;
        border-radius: 10px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        display: block;
        margin: 0 auto;
    }

    .page-ty-le-bong-da-88__promo-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-ty-le-bong-da-88__promo-card {
        background-color: #f9f9f9;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        text-align: center;
        transition: transform 0.3s ease;
    }

    .page-ty-le-bong-da-88__promo-card:hover {
        transform: translateY(-5px);
    }

    .page-ty-le-bong-da-88__promo-image {
        width: 100%;
        height: 250px;
        object-fit: cover;
    }

    .page-ty-le-bong-da-88__promo-content {
        padding: 25px;
    }

    .page-ty-le-bong-da-88__promo-title {
        font-size: 1.6em;
        color: #0f2027;
        margin-bottom: 10px;
        font-weight: bold;
    }

    .page-ty-le-bong-da-88__promo-description {
        color: #555;
        font-size: 1em;
        margin-bottom: 20px;
    }

    .page-ty-le-bong-da-88__step-list {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 30px;
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .page-ty-le-bong-da-88__step-item {
        background-color: #e6f7ff;
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        text-align: center;
        flex: 1 1 calc(33% - 40px);
        min-width: 280px;
        box-sizing: border-box;
        border: 2px solid #007bff;
    }

    .page-ty-le-bong-da-88__step-number {
        font-size: 2.5em;
        color: #007bff;
        font-weight: bold;
        margin-bottom: 15px;
    }

    .page-ty-le-bong-da-88__step-title {
        font-size: 1.5em;
        color: #0f2027;
        margin-bottom: 10px;
        font-weight: bold;
    }

    .page-ty-le-bong-da-88__step-description {
        color: #555;
        font-size: 1em;
    }

    .page-ty-le-bong-da-88__payment-provider-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 20px;
        margin-top: 40px;
    }

    .page-ty-le-bong-da-88__payment-provider-item {
        background-color: #f0f0f0;
        padding: 20px;
        border-radius: 8px;
        text-align: center;
        box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        font-weight: bold;
        color: #333;
        box-sizing: border-box;
    }

    .page-ty-le-bong-da-88__faq-section {
        background-color: #fff;
        padding: 60px 20px;
        margin-bottom: 20px;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    }

    .page-ty-le-bong-da-88__faq-container {
        max-width: 800px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .page-ty-le-bong-da-88__faq-item {
        margin-bottom: 15px;
        border: 1px solid #ddd;
        border-radius: 8px;
        overflow: hidden;
        background-color: #f9f9f9;
    }

    .page-ty-le-bong-da-88__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 18px 20px;
        background-color: #0f2027; /* Dark background for question */
        color: #fff;
        cursor: pointer;
        user-select: none;
        font-size: 1.2em;
        font-weight: bold;
        transition: background-color 0.3s ease;
    }

    .page-ty-le-bong-da-88__faq-question h3 {
        margin: 0;
        flex-grow: 1;
        text-align: left;
        color: #ffcc00; /* Gold text for question title */
        pointer-events: none; /* Crucial for click handler */
    }

    .page-ty-le-bong-da-88__faq-question:hover {
        background-color: #203a43;
    }

    .page-ty-le-bong-da-88__faq-toggle {
        font-size: 1.5em;
        font-weight: bold;
        margin-left: 15px;
        transition: transform 0.3s ease;
        color: #ffcc00;
        pointer-events: none; /* Crucial for click handler */
    }

    .page-ty-le-bong-da-88__faq-item.active .page-ty-le-bong-da-88__faq-toggle {
        transform: rotate(45deg);
    }

    .page-ty-le-bong-da-88__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 20px;
        opacity: 0;
        background-color: #fff;
        color: #333;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
    }

    .page-ty-le-bong-da-88__faq-item.active .page-ty-le-bong-da-88__faq-answer {
        max-height: 2000px !important; /* Sufficiently large value */
        padding: 20px !important;
        opacity: 1;
    }

    .page-ty-le-bong-da-88__floating-buttons {
        position: fixed;
        bottom: 20px;
        right: 20px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        z-index: 1000;
    }

    .page-ty-le-bong-da-88__floating-button {
        background-color: #007bff; /* Blue for action buttons */
        color: #fff;
        padding: 12px 25px;
        border-radius: 30px;
        border: none;
        font-size: 1em;
        cursor: pointer;
        box-shadow: 0 4px 10px rgba(0,0,0,0.2);
        transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .page-ty-le-bong-da-88__floating-button:hover {
        background-color: #0056b3;
        transform: translateY(-2px);
    }

    .page-ty-le-bong-da-88__register-button {
        background-color: #28a745; /* Green for register */
    }

    .page-ty-le-bong-da-88__register-button:hover {
        background-color: #218838;
    }

    /* Responsive adjustments */
    @media (max-width: 992px) {
        .page-ty-le-bong-da-88__hero-title {
            font-size: 2.8em;
        }
        .page-ty-le-bong-da-88__hero-subtitle {
            font-size: 1.3em;
        }
        .page-ty-le-bong-da-88__section-title {
            font-size: 2em;
        }
        .page-ty-le-bong-da-88__feature-item,
        .page-ty-le-bong-da-88__step-item {
            flex: 1 1 calc(50% - 30px);
        }
    }

    @media (max-width: 768px) {
        .page-ty-le-bong-da-88__hero-section {
            padding: 60px 15px;
        }
        .page-ty-le-bong-da-88__hero-title {
            font-size: 2.2em;
        }
        .page-ty-le-bong-da-88__hero-subtitle {
            font-size: 1.1em;
        }
        .page-ty-le-bong-da-88__button {
            padding: 12px 25px;
            font-size: 1em;
        }
        .page-ty-le-bong-da-88__section {
            padding: 40px 15px;
        }
        .page-ty-le-bong-da-88__section-title {
            font-size: 1.8em;
            margin-bottom: 30px;
        }
        .page-ty-le-bong-da-88__text-content {
            font-size: 1em;
        }
        .page-ty-le-bong-da-88__feature-list,
        .page-ty-le-bong-da-88__step-list {
            flex-direction: column !important;
            padding: 0 10px !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
        }
        .page-ty-le-bong-da-88__feature-item,
        .page-ty-le-bong-da-88__step-item {
            width: 100% !important;
            max-width: 100% !important;
            margin: 10px 0 !important;
            box-sizing: border-box !important;
            word-wrap: break-word !important;
            overflow-wrap: break-word !important;
            word-break: break-word !important;
            padding: 20px !important;
        }
        .page-ty-le-bong-da-88__promo-grid,
        .page-ty-le-bong-da-88__payment-provider-grid {
            grid-template-columns: 1fr;
        }
        .page-ty-le-bong-da-88__faq-container {
            padding: 0 10px !important;
        }
        .page-ty-le-bong-da-88__faq-question {
            padding: 15px !important;
            font-size: 1.1em;
        }
        .page-ty-le-bong-da-88__faq-answer {
            padding: 0 15px !important;
        }
        .page-ty-le-bong-da-88__faq-item.active .page-ty-le-bong-da-88__faq-answer {
            padding: 20px 15px !important;
        }
        .page-ty-le-bong-da-88__floating-buttons {
            right: 10px;
            bottom: 10px;
        }
        .page-ty-le-bong-da-88__floating-button {
            padding: 10px 20px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 480px) {
        .page-ty-le-bong-da-88__hero-title {
            font-size: 1.8em;
        }
        .page-ty-le-bong-da-88__hero-subtitle {
            font-size: 0.9em;
        }
        .page-ty-le-bong-da-88__section-title {
            font-size: 1.5em;
        }
    }