:root {
        --primary-color: #ffcc00; /* Vàng */
        --secondary-color: #333333; /* Xám đậm */
        --accent-color: #007bff; /* Xanh dương */
        --text-light: #f8f9fa; /* Trắng nhạt */
        --text-dark: #212529; /* Đen */
        --background-dark: #1a1a1a;
        --background-light: #f0f2f5;
        --border-color: #444444;
        --button-hover-color: #e6b800;
    }

    /* Base styles for the page container */
    .page-1xbit-app-di-ng {
        font-family: 'Arial', sans-serif;
        line-height: 1.6;
        color: var(--text-light);
        background-color: var(--background-dark);
        padding: 20px 0;
    }

    .page-1xbit-app-di-ng__container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
    }

    .page-1xbit-app-di-ng__section {
        padding: 40px 0;
        margin-bottom: 30px;
        background-color: var(--secondary-color);
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    }

    .page-1xbit-app-di-ng__section--dark {
        background-color: var(--background-dark);
        color: var(--text-light);
    }

    .page-1xbit-app-di-ng__hero-section {
        background: var(--background-dark);
        color: var(--text-light);
        text-align: center;
        padding: 60px 0 20px 0; /* Adjusted for header offset */
        position: relative;
        overflow: hidden;
        border-radius: 0; /* No border-radius for hero */
        box-shadow: none;
    }

    .page-1xbit-app-di-ng__hero-content {
        position: relative;
        z-index: 1;
        max-width: 900px;
        margin: 0 auto;
        padding: 0 15px;
    }

    .page-1xbit-app-di-ng__hero-image {
        margin-top: 30px;
        border-radius: 15px;
        overflow: hidden;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
        max-width: 100%;
        height: auto;
    }

    .page-1xbit-app-di-ng__hero-image img {
        display: block;
        width: 100%;
        height: auto;
        max-width: 100%; /* Ensure responsiveness */
        box-sizing: border-box; /* Ensure padding/border included */
    }

    .page-1xbit-app-di-ng__title {
        color: var(--primary-color);
        font-size: 2.8em;
        margin-bottom: 20px;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-1xbit-app-di-ng__subtitle {
        font-size: 1.4em;
        color: var(--text-light);
        margin-bottom: 30px;
    }

    .page-1xbit-app-di-ng__button-group {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-top: 30px;
    }

    .page-1xbit-app-di-ng__button {
        background-color: var(--primary-color);
        color: var(--secondary-color);
        padding: 15px 30px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: bold;
        font-size: 1.1em;
        transition: background-color 0.3s ease, transform 0.2s ease;
        border: none;
        cursor: pointer;
    }

    .page-1xbit-app-di-ng__button:hover {
        background-color: var(--button-hover-color);
        transform: translateY(-3px);
    }

    .page-1xbit-app-di-ng__button--secondary {
        background-color: var(--accent-color);
        color: var(--text-light);
    }

    .page-1xbit-app-di-ng__button--secondary:hover {
        background-color: #0056b3;
    }

    .page-1xbit-app-di-ng__text-content {
        text-align: center;
        margin-bottom: 30px;
    }

    .page-1xbit-app-di-ng__text-content h2 {
        color: var(--primary-color);
        font-size: 2em;
        margin-bottom: 20px;
    }

    .page-1xbit-app-di-ng__text-content p {
        font-size: 1.1em;
        color: var(--text-light);
        margin-bottom: 15px;
        padding: 0 15px;
    }

    .page-1xbit-app-di-ng__feature-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-1xbit-app-di-ng__feature-item {
        background-color: var(--background-dark);
        padding: 30px;
        border-radius: 10px;
        text-align: center;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease;
    }

    .page-1xbit-app-di-ng__feature-item:hover {
        transform: translateY(-5px);
    }

    .page-1xbit-app-di-ng__feature-item img {
        max-width: 100%;
        height: auto;
        margin-bottom: 20px;
        border-radius: 8px;
        box-sizing: border-box;
    }

    .page-1xbit-app-di-ng__feature-item h3 {
        color: var(--primary-color);
        font-size: 1.5em;
        margin-bottom: 15px;
    }

    .page-1xbit-app-di-ng__feature-item p {
        color: var(--text-light);
        font-size: 1em;
    }

    .page-1xbit-app-di-ng__download-steps {
        margin-top: 40px;
    }

    .page-1xbit-app-di-ng__step-list {
        display: flex;
        flex-direction: column;
        gap: 25px;
        padding: 0;
        list-style: none;
    }

    .page-1xbit-app-di-ng__step-item {
        background-color: var(--background-dark);
        padding: 25px;
        border-radius: 10px;
        display: flex;
        align-items: flex-start;
        gap: 20px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        box-sizing: border-box; /* Crucial for responsiveness */
        width: 100%; /* Crucial for responsiveness */
    }

    .page-1xbit-app-di-ng__step-number {
        background-color: var(--primary-color);
        color: var(--secondary-color);
        width: 40px;
        height: 40px;
        min-width: 40px; /* Prevent shrinking */
        min-height: 40px; /* Prevent shrinking */
        border-radius: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: 1.5em;
        font-weight: bold;
    }

    .page-1xbit-app-di-ng__step-content h3 {
        color: var(--primary-color);
        margin-top: 0;
        font-size: 1.4em;
    }

    .page-1xbit-app-di-ng__step-content p {
        color: var(--text-light);
        margin-bottom: 0;
        font-size: 1em;
    }

    .page-1xbit-app-di-ng__game-showcase {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 25px;
        margin-top: 40px;
    }

    .page-1xbit-app-di-ng__game-card {
        background-color: var(--background-dark);
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
        transition: transform 0.3s ease;
        text-align: center;
        box-sizing: border-box;
    }

    .page-1xbit-app-di-ng__game-card:hover {
        transform: translateY(-7px);
    }

    .page-1xbit-app-di-ng__game-card img {
        width: 100%;
        height: 200px; /* Fixed height for consistency */
        object-fit: cover;
        display: block;
        max-width: 100%;
        box-sizing: border-box;
    }

    .page-1xbit-app-di-ng__game-info {
        padding: 20px;
    }

    .page-1xbit-app-di-ng__game-info h3 {
        color: var(--primary-color);
        font-size: 1.3em;
        margin-bottom: 10px;
    }

    .page-1xbit-app-di-ng__game-info p {
        color: var(--text-light);
        font-size: 0.95em;
    }

    /* FAQ Section */
    .page-1xbit-app-di-ng__faq-section {
        padding: 40px 0;
        margin-bottom: 30px;
        background-color: var(--background-dark);
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    }

    .page-1xbit-app-di-ng__faq-list {
        margin-top: 30px;
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .page-1xbit-app-di-ng__faq-item {
        background-color: var(--secondary-color);
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        box-sizing: border-box; /* Ensure padding/border included */
        width: 100%; /* Ensure responsiveness */
    }

    .page-1xbit-app-di-ng__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 20px;
        background-color: var(--secondary-color);
        color: var(--text-light);
        font-size: 1.1em;
        font-weight: bold;
        cursor: pointer;
        user-select: none;
        transition: background-color 0.3s ease;
        border-bottom: 1px solid var(--border-color);
    }

    .page-1xbit-app-di-ng__faq-question:hover {
        background-color: #444444;
    }

    .page-1xbit-app-di-ng__faq-question h3 {
        margin: 0;
        color: var(--primary-color);
        pointer-events: none; /* Prevents h3 from blocking click event */
        font-size: 1.2em;
    }

    .page-1xbit-app-di-ng__faq-toggle {
        font-size: 1.5em;
        line-height: 1;
        transition: transform 0.3s ease;
        pointer-events: none; /* Prevents toggle from blocking click event */
        color: var(--primary-color);
    }

    .page-1xbit-app-di-ng__faq-item.active .page-1xbit-app-di-ng__faq-toggle {
        transform: rotate(45deg); /* Rotates the '+' to 'x' or '-' */
    }

    .page-1xbit-app-di-ng__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 20px;
        color: var(--text-light);
        background-color: #2a2a2a;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.3s ease;
        opacity: 0;
        font-size: 1em;
    }

    .page-1xbit-app-di-ng__faq-item.active .page-1xbit-app-di-ng__faq-answer {
        max-height: 2000px !important; /* Sufficiently large to contain content */
        padding: 20px 20px !important;
        opacity: 1;
    }
    
    .page-1xbit-app-di-ng__faq-answer p {
        margin-bottom: 10px;
        color: var(--text-light);
    }

    .page-1xbit-app-di-ng__cta-section {
        text-align: center;
        background-color: var(--primary-color);
        color: var(--secondary-color);
        padding: 50px 0;
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    }

    .page-1xbit-app-di-ng__cta-section h2 {
        font-size: 2.5em;
        margin-bottom: 20px;
        color: var(--secondary-color);
    }

    .page-1xbit-app-di-ng__cta-section p {
        font-size: 1.2em;
        margin-bottom: 30px;
        color: var(--text-dark);
        padding: 0 15px;
    }

    .page-1xbit-app-di-ng__cta-button {
        background-color: var(--accent-color);
        color: var(--text-light);
        padding: 15px 35px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: bold;
        font-size: 1.2em;
        transition: background-color 0.3s ease, transform 0.2s ease;
        border: none;
        cursor: pointer;
        display: inline-block; /* Make it behave like a button */
    }

    .page-1xbit-app-di-ng__cta-button:hover {
        background-color: #0056b3;
        transform: translateY(-3px);
    }

    /* Responsive adjustments */
    @media (max-width: 992px) {
        .page-1xbit-app-di-ng__title {
            font-size: 2.5em;
        }
        .page-1xbit-app-di-ng__subtitle {
            font-size: 1.2em;
        }
        .page-1xbit-app-di-ng__section {
            padding: 30px 0;
        }
        .page-1xbit-app-di-ng__text-content h2 {
            font-size: 1.8em;
        }
        .page-1xbit-app-di-ng__feature-grid {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 768px) {
        .page-1xbit-app-di-ng__hero-section {
            padding-top: 40px;
        }
        .page-1xbit-app-di-ng__title {
            font-size: 2em;
        }
        .page-1xbit-app-di-ng__subtitle {
            font-size: 1em;
        }
        .page-1xbit-app-di-ng__button-group {
            flex-direction: column;
            gap: 15px;
        }
        .page-1xbit-app-di-ng__button {
            width: 80%;
            margin: 0 auto;
            padding: 12px 25px;
            font-size: 1em;
        }
        .page-1xbit-app-di-ng__section {
            padding: 20px 0;
            margin-bottom: 20px;
        }
        .page-1xbit-app-di-ng__text-content h2 {
            font-size: 1.6em;
        }
        .page-1xbit-app-di-ng__text-content p {
            font-size: 0.95em;
        }
        .page-1xbit-app-di-ng__feature-item {
            padding: 20px;
        }
        .page-1xbit-app-di-ng__feature-item h3 {
            font-size: 1.3em;
        }

        /* List responsiveness */
        .page-1xbit-app-di-ng__step-list,
        .page-1xbit-app-di-ng__faq-list {
            padding: 0 !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
        }

        .page-1xbit-app-di-ng__step-item,
        .page-1xbit-app-di-ng__faq-item {
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
            padding: 15px !important; /* Adjust padding for smaller screens */
            word-wrap: break-word !important;
            overflow-wrap: break-word !important;
            word-break: break-word !important;
        }
        
        .page-1xbit-app-di-ng__step-content h3 {
            font-size: 1.2em;
        }
        .page-1xbit-app-di-ng__step-content p {
            font-size: 0.9em;
        }

        .page-1xbit-app-di-ng__game-showcase {
            grid-template-columns: 1fr;
        }
        .page-1xbit-app-di-ng__game-card img {
            height: 180px;
        }
        .page-1xbit-app-di-ng__game-info h3 {
            font-size: 1.2em;
        }
        .page-1xbit-app-di-ng__game-info p {
            font-size: 0.9em;
        }

        .page-1xbit-app-di-ng__faq-question {
            padding: 15px;
            font-size: 1em;
        }
        .page-1xbit-app-di-ng__faq-question h3 {
            font-size: 1.1em;
        }
        .page-1xbit-app-di-ng__faq-answer {
            padding: 15px !important;
            font-size: 0.95em;
        }

        .page-1xbit-app-di-ng__cta-section h2 {
            font-size: 2em;
        }
        .page-1xbit-app-di-ng__cta-section p {
            font-size: 1em;
        }
        .page-1xbit-app-di-ng__cta-button {
            padding: 12px 25px;
            font-size: 1.1em;
        }

        /* Image responsiveness */
        .page-1xbit-app-di-ng__hero-image img,
        .page-1xbit-app-di-ng__feature-item img,
        .page-1xbit-app-di-ng__game-card img {
            max-width: 100% !important;
            height: auto !important;
            box-sizing: border-box !important;
        }
        .page-1xbit-app-di-ng__hero-image,
        .page-1xbit-app-di-ng__feature-item,
        .page-1xbit-app-di-ng__game-card {
            width: 100% !important;
            max-width: 100% !important;
            overflow: hidden !important;
            box-sizing: border-box !important;
        }
    }

    @media (max-width: 480px) {
        .page-1xbit-app-di-ng__title {
            font-size: 1.8em;
        }
        .page-1xbit-app-di-ng__subtitle {
            font-size: 0.9em;
        }
        .page-1xbit-app-di-ng__button {
            width: 90%;
            padding: 10px 20px;
            font-size: 0.9em;
        }
        .page-1xbit-app-di-ng__step-number {
            width: 35px;
            height: 35px;
            min-width: 35px;
            min-height: 35px;
            font-size: 1.2em;
        }
        .page-1xbit-app-di-ng__step-content h3 {
            font-size: 1.1em;
        }
        .page-1xbit-app-di-ng__step-content p {
            font-size: 0.85em;
        }
        .page-1xbit-app-di-ng__cta-section h2 {
            font-size: 1.8em;
        }
        .page-1xbit-app-di-ng__cta-section p {
            font-size: 0.9em;
        }
        .page-1xbit-app-di-ng__cta-button {
            padding: 10px 20px;
            font-size: 1em;
        }
    }