:root {
        --page-fly88-primary-color: #e04a4a; /* Đỏ rực */
        --page-fly88-secondary-color: #ffc107; /* Vàng nổi bật */
        --page-fly88-dark-bg: #1a1a1a; /* Nền tối */
        --page-fly88-light-bg: #f5f5f5; /* Nền sáng */
        --page-fly88-text-color: #ffffff; /* Chữ trắng */
        --page-fly88-dark-text-color: #333333; /* Chữ tối */
        --page-fly88-border-radius: 8px;
        --page-fly88-padding-section: 40px 20px;
        --page-fly88-padding-section-mobile: 20px 15px;
    }

    .page-fly88 {
        font-family: 'Arial', sans-serif;
        line-height: 1.6;
        color: var(--page-fly88-text-color);
        background-color: var(--page-fly88-dark-bg);
    }

    .page-fly88__container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
    }

    /* Hero Section */
    .page-fly88__hero-section {
        position: relative;
        text-align: center;
        padding: 100px 0 60px; /* Adjusted padding-top for fixed header */
        background-color: #000;
        overflow: hidden;
    }

    .page-fly88__hero-background {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 1;
        opacity: 0.6;
    }

    .page-fly88__hero-content {
        position: relative;
        z-index: 2;
        color: var(--page-fly88-text-color);
        max-width: 800px;
        margin: 0 auto;
        padding: 0 15px;
    }

    .page-fly88__hero-title {
        font-size: 2.8em;
        margin-bottom: 20px;
        color: var(--page-fly88-secondary-color);
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__hero-description {
        font-size: 1.2em;
        margin-bottom: 30px;
        color: #e0e0e0;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__cta-button {
        display: inline-block;
        background-color: var(--page-fly88-primary-color);
        color: var(--page-fly88-text-color);
        padding: 15px 30px;
        border-radius: var(--page-fly88-border-radius);
        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-fly88__cta-button:hover {
        background-color: #c73a3a;
        transform: translateY(-2px);
    }

    /* Floating Promotion Button */
    .page-fly88__floating-promo {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 1000;
        animation: pulse 2s infinite;
    }

    .page-fly88__floating-promo-button {
        background-color: var(--page-fly88-secondary-color);
        color: var(--page-fly88-dark-text-color);
        padding: 12px 20px;
        border-radius: 50px;
        font-weight: bold;
        text-align: center;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        text-decoration: none;
        display: block;
        transition: background-color 0.3s ease, transform 0.2s ease;
        border: none;
        cursor: pointer;
        font-size: 1em;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__floating-promo-button:hover {
        background-color: #e6b000;
        transform: scale(1.05);
    }

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

    /* General Section Styling */
    .page-fly88__section {
        padding: var(--page-fly88-padding-section);
        text-align: center;
        background-color: var(--page-fly88-dark-bg);
    }

    .page-fly88__section:nth-of-type(even) {
        background-color: #2a2a2a;
    }

    .page-fly88__section-title {
        font-size: 2.2em;
        margin-bottom: 30px;
        color: var(--page-fly88-primary-color);
        position: relative;
        padding-bottom: 10px;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__section-title::after {
        content: '';
        position: absolute;
        left: 50%;
        bottom: 0;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background-color: var(--page-fly88-secondary-color);
        border-radius: 2px;
    }

    .page-fly88__text-content {
        text-align: left;
        color: #e0e0e0;
        font-size: 1.05em;
        max-width: 900px;
        margin: 0 auto 30px;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__text-content p {
        margin-bottom: 15px;
    }

    .page-fly88__text-content strong {
        color: var(--page-fly88-secondary-color);
    }

    /* Game Categories */
    .page-fly88__game-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        max-width: 1000px;
        margin: 40px auto;
    }

    .page-fly88__game-card {
        background-color: #333;
        border-radius: var(--page-fly88-border-radius);
        overflow: hidden;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }

    .page-fly88__game-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-fly88__game-card-image {
        width: 100%;
        height: 200px; /* Minimum height for content images */
        object-fit: cover;
        display: block;
        max-width: 100%;
        box-sizing: border-box;
    }

    .page-fly88__game-card-content {
        padding: 20px;
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .page-fly88__game-card-title {
        font-size: 1.5em;
        color: var(--page-fly88-secondary-color);
        margin-bottom: 10px;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__game-card-description {
        font-size: 0.95em;
        color: #ccc;
        margin-bottom: 20px;
        flex-grow: 1;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    /* How-to Guide */
    .page-fly88__guide-list {
        list-style: none;
        padding: 0;
        max-width: 800px;
        margin: 40px auto;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 25px;
    }

    .page-fly88__guide-item {
        background-color: #333;
        border-left: 5px solid var(--page-fly88-primary-color);
        padding: 25px;
        border-radius: var(--page-fly88-border-radius);
        text-align: left;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        flex: 1 1 calc(50% - 25px); /* Two columns on desktop */
        box-sizing: border-box;
        color: #e0e0e0;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__guide-item h3 {
        color: var(--page-fly88-secondary-color);
        margin-top: 0;
        font-size: 1.4em;
        margin-bottom: 10px;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__guide-item p {
        margin-bottom: 10px;
    }

    .page-fly88__guide-item img {
        max-width: 100%;
        height: auto;
        border-radius: var(--page-fly88-border-radius);
        margin-top: 15px;
        display: block;
        min-height: 200px;
        object-fit: cover;
        box-sizing: border-box;
    }

    /* FAQ Section */
    .page-fly88__faq-list {
        max-width: 800px;
        margin: 40px auto;
        text-align: left;
        padding: 0;
    }

    .page-fly88__faq-item {
        background-color: #333;
        border-radius: var(--page-fly88-border-radius);
        margin-bottom: 15px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        overflow: hidden;
    }

    .page-fly88__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 25px;
        background-color: #444;
        cursor: pointer;
        user-select: none;
        color: var(--page-fly88-text-color);
        transition: background-color 0.3s ease;
    }

    .page-fly88__faq-question:hover {
        background-color: #555;
    }

    .page-fly88__faq-question h3 {
        margin: 0;
        font-size: 1.2em;
        color: var(--page-fly88-secondary-color);
        pointer-events: none; /* Prevent h3 from blocking click */
        flex-grow: 1;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__faq-toggle {
        font-size: 1.8em;
        font-weight: bold;
        color: var(--page-fly88-primary-color);
        margin-left: 15px;
        pointer-events: none; /* Prevent toggle from blocking click */
        transition: transform 0.3s ease;
    }

    .page-fly88__faq-item.active .page-fly88__faq-toggle {
        transform: rotate(45deg); /* Visually change + to X or - */
    }

    .page-fly88__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 25px;
        color: #ccc;
        background-color: #333;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
        opacity: 0;
        font-size: 0.95em;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .page-fly88__faq-item.active .page-fly88__faq-answer {
        max-height: 2000px !important; /* Sufficiently large to contain content */
        padding: 20px 25px !important;
        opacity: 1;
    }

    /* Mobile Responsiveness */
    @media (max-width: 768px) {
        .page-fly88__hero-section {
            padding: 80px 0 40px; /* Adjusted padding-top for mobile fixed header */
        }

        .page-fly88__hero-title {
            font-size: 2em;
        }

        .page-fly88__hero-description {
            font-size: 1em;
        }

        .page-fly88__section {
            padding: var(--page-fly88-padding-section-mobile);
        }

        .page-fly88__section-title {
            font-size: 1.8em;
        }

        .page-fly88__text-content {
            font-size: 0.95em;
        }

        .page-fly88__game-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        
        .page-fly88__game-card-image {
            height: 180px; /* Adjust height for mobile */
            max-width: 100% !important;
            box-sizing: border-box !important;
        }

        .page-fly88__guide-list {
            flex-direction: column;
            gap: 15px;
            margin: 20px auto;
        }

        .page-fly88__guide-item {
            flex: 1 1 100%; /* Single column on mobile */
            padding: 20px;
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
        }
        
        .page-fly88__guide-item img {
            max-width: 100% !important;
            height: auto !important;
            box-sizing: border-box !important;
        }

        .page-fly88__faq-list {
            margin: 20px auto;
        }

        .page-fly88__faq-question {
            padding: 15px 20px;
        }

        .page-fly88__faq-question h3 {
            font-size: 1.1em;
        }

        .page-fly88__faq-answer {
            padding: 0 20px;
        }

        .page-fly88__faq-item.active .page-fly88__faq-answer {
            padding: 15px 20px !important;
        }

        .page-fly88__floating-promo {
            bottom: 15px;
            right: 15px;
        }

        .page-fly88__floating-promo-button {
            padding: 10px 18px;
            font-size: 0.9em;
        }
    }
    
    /* Ensure all images are responsive */
    .page-fly88 img {
        max-width: 100%;
        height: auto;
        display: block;
        box-sizing: border-box;
    }
    @media (max-width: 768px) {
        .page-fly88 img {
            max-width: 100% !important;
            height: auto !important;
            box-sizing: border-box !important;
        }
    }