:root {
        --yy777-primary-color: #FFD700; /* Gold */
        --yy777-secondary-color: #000000; /* Black */
        --yy777-text-light: #FFFFFF;
        --yy777-text-dark: #333333;
        --yy777-background-dark: #1a1a1a;
        --yy777-background-light: #f5f5f5;
        --yy777-accent-color: #FF4500; /* OrangeRed */
        --header-offset: 122px; /* Default value, assumed to be set in shared.css */
    }

    .page-yy777-app-download-old-version {
        font-family: 'Arial', sans-serif;
        line-height: 1.6;
        color: var(--yy777-text-light);
        background-color: var(--yy777-background-dark);
        padding-top: 10px; /* Small decorative padding, relying on body padding-top for header offset */
    }

    /* Fallback for body padding-top if not guaranteed by shared.css */
    /* .page-yy777-app-download-old-version {
        padding-top: var(--header-offset, 122px);
    } */

    .page-yy777-app-download-old-version__section {
        padding: 60px 20px;
        max-width: 1200px;
        margin: 0 auto;
        text-align: center;
    }

    .page-yy777-app-download-old-version__section--dark {
        background-color: var(--yy777-background-dark);
        color: var(--yy777-text-light);
    }

    .page-yy777-app-download-old-version__section--light {
        background-color: var(--yy777-background-light);
        color: var(--yy777-text-dark);
    }

    .page-yy777-app-download-old-version__title {
        font-size: 3em;
        margin-bottom: 20px;
        color: var(--yy777-primary-color);
        text-transform: uppercase;
    }

    .page-yy777-app-download-old-version__subtitle {
        font-size: 1.8em;
        margin-bottom: 40px;
        color: var(--yy777-accent-color);
    }

    .page-yy777-app-download-old-version__text {
        font-size: 1.1em;
        margin-bottom: 20px;
        color: var(--yy777-text-light);
    }

    .page-yy777-app-download-old-version__text--highlight {
        color: var(--yy777-primary-color);
    }

    .page-yy777-app-download-old-version__button {
        display: inline-block;
        background-color: var(--yy777-primary-color);
        color: var(--yy777-secondary-color);
        padding: 15px 30px;
        border-radius: 8px;
        font-size: 1.2em;
        font-weight: bold;
        text-decoration: none;
        transition: background-color 0.3s ease, transform 0.3s ease;
        border: none;
        cursor: pointer;
    }

    .page-yy777-app-download-old-version__button:hover {
        background-color: var(--yy777-accent-color);
        transform: translateY(-3px);
    }

    .page-yy777-app-download-old-version__image {
        max-width: 100%;
        height: auto;
        border-radius: 10px;
        margin-top: 30px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
    }

    .page-yy777-app-download-old-version__grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-yy777-app-download-old-version__card {
        background-color: var(--yy777-secondary-color);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        text-align: left;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        box-sizing: border-box; /* Crucial for responsive lists */
    }

    .page-yy777-app-download-old-version__card-title {
        color: var(--yy777-primary-color);
        font-size: 1.5em;
        margin-bottom: 15px;
    }

    .page-yy777-app-download-old-version__card-text {
        color: var(--yy777-text-light);
        font-size: 1em;
    }

    .page-yy777-app-download-old-version__list {
        list-style: none;
        padding: 0;
        margin: 30px 0;
        text-align: left;
    }

    .page-yy777-app-download-old-version__list-item {
        background-color: var(--yy777-secondary-color);
        margin-bottom: 15px;
        padding: 20px;
        border-radius: 8px;
        display: flex;
        align-items: flex-start;
        gap: 15px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        box-sizing: border-box; /* Crucial for responsive lists */
    }

    .page-yy777-app-download-old-version__list-item-icon {
        color: var(--yy777-primary-color);
        font-size: 1.5em;
        line-height: 1;
        flex-shrink: 0;
    }

    .page-yy777-app-download-old-version__list-item-content {
        color: var(--yy777-text-light);
        font-size: 1.1em;
        word-wrap: break-word; /* Ensure text wraps */
        overflow-wrap: break-word;
    }

    /* FAQ Section Styles */
    .page-yy777-app-download-old-version__faq-section {
        text-align: left;
    }

    .page-yy777-app-download-old-version__faq-item {
        background-color: var(--yy777-secondary-color);
        margin-bottom: 15px;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        box-sizing: border-box;
    }

    .page-yy777-app-download-old-version__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 25px;
        background-color: #2a2a2a;
        color: var(--yy777-primary-color);
        font-size: 1.2em;
        font-weight: bold;
        cursor: pointer;
        user-select: none;
        transition: background-color 0.3s ease;
    }

    .page-yy777-app-download-old-version__faq-question:hover {
        background-color: #3a3a3a;
    }

    .page-yy777-app-download-old-version__faq-question h3 {
        margin: 0;
        color: inherit;
        pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-yy777-app-download-old-version__faq-toggle {
        font-size: 1.5em;
        line-height: 1;
        transition: transform 0.3s ease;
        pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-yy777-app-download-old-version__faq-item.active .page-yy777-app-download-old-version__faq-toggle {
        transform: rotate(45deg); /* Change '+' to 'x' or similar */
    }

    .page-yy777-app-download-old-version__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 25px;
        color: var(--yy777-text-light);
        font-size: 1em;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
        opacity: 0;
    }

    .page-yy777-app-download-old-version__faq-item.active .page-yy777-app-download-old-version__faq-answer {
        max-height: 2000px !important; /* Sufficiently large to contain content */
        padding: 20px 25px !important;
        opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
        .page-yy777-app-download-old-version__title {
            font-size: 2.2em;
        }

        .page-yy777-app-download-old-version__subtitle {
            font-size: 1.4em;
        }

        .page-yy777-app-download-old-version__text {
            font-size: 1em;
        }

        .page-yy777-app-download-old-version__button {
            padding: 12px 25px;
            font-size: 1.1em;
        }

        .page-yy777-app-download-old-version__section {
            padding: 40px 15px;
        }

        .page-yy777-app-download-old-version__grid {
            grid-template-columns: 1fr;
        }

        .page-yy777-app-download-old-version__card {
            padding: 20px;
        }

        .page-yy777-app-download-old-version__card-title {
            font-size: 1.3em;
        }

        .page-yy777-app-download-old-version__list-item {
            padding: 15px;
            flex-direction: column;
            align-items: flex-start;
            margin-left: 0 !important;
            margin-right: 0 !important;
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
        }
        .page-yy777-app-download-old-version__list-item-content {
            font-size: 0.95em;
        }
        .page-yy777-app-download-old-version__list {
            padding: 0 !important;
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
        }

        .page-yy777-app-download-old-version__faq-question {
            padding: 15px 20px;
            font-size: 1.1em;
        }

        .page-yy777-app-download-old-version__faq-answer {
            padding: 15px 20px;
            font-size: 0.95em;
        }
        .page-yy777-app-download-old-version__faq-item.active .page-yy777-app-download-old-version__faq-answer {
            padding: 15px 20px !important;
        }
    }

    @media (max-width: 480px) {
        .page-yy777-app-download-old-version__title {
            font-size: 1.8em;
        }
        .page-yy777-app-download-old-version__subtitle {
            font-size: 1.2em;
        }
        .page-yy777-app-download-old-version__text {
            font-size: 0.95em;
        }
        .page-yy777-app-download-old-version__button {
            padding: 10px 20px;
            font-size: 1em;
        }
    }