/* Reset và Box-sizing cho toàn bộ trang */
    .page-tt88apk * {
        box-sizing: border-box;
    }

    .page-tt88apk {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        line-height: 1.6;
        color: #333;
        background-color: #f4f7f6;
        padding-bottom: 80px; /* Khoảng trống cho nút nổi */
    }

    .page-tt88apk__container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
    }

    /* Hero Section */
    .page-tt88apk__hero-section {
        position: relative;
        text-align: center;
        color: #fff;
        padding: 10px 0 60px 0; /* padding-top for fixed header as required */
        background-color: #0d1a2f; /* Fallback background */
        overflow: hidden;
    }

    .page-tt88apk__hero-background {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 0;
        filter: brightness(0.6); /* Làm tối ảnh nền để chữ dễ đọc hơn */
    }

    .page-tt88apk__hero-content {
        position: relative;
        z-index: 1;
        max-width: 800px;
        margin: 0 auto;
        padding: 40px 20px;
    }

    .page-tt88apk__hero-title {
        font-size: 2.8em;
        margin-bottom: 15px;
        color: #ffcc00; /* Màu vàng nổi bật */
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-tt88apk__hero-subtitle {
        font-size: 1.3em;
        margin-bottom: 30px;
        color: #e0e0e0;
        text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    .page-tt88apk__cta-button {
        display: inline-block;
        background-color: #ff4500; /* Màu cam đỏ */
        color: #fff;
        padding: 15px 30px;
        border-radius: 50px;
        text-decoration: none;
        font-size: 1.2em;
        font-weight: bold;
        transition: background-color 0.3s ease, transform 0.2s ease;
        border: none;
        cursor: pointer;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-tt88apk__cta-button:hover {
        background-color: #e03d00;
        transform: translateY(-2px);
    }

    /* Section chung */
    .page-tt88apk__section {
        padding: 60px 0;
        background-color: #fff;
        margin-bottom: 20px;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-tt88apk__section:nth-of-type(even) {
        background-color: #fcfcfc;
    }

    .page-tt88apk__section-title {
        font-size: 2.2em;
        color: #0d1a2f;
        text-align: center;
        margin-bottom: 40px;
        position: relative;
    }

    .page-tt88apk__section-title::after {
        content: '';
        position: absolute;
        left: 50%;
        bottom: -10px;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background-color: #ff4500;
        border-radius: 2px;
    }

    /* Giới thiệu TT88 APK */
    .page-tt88apk__about-content {
        display: flex;
        flex-direction: column;
        gap: 30px;
        align-items: center;
    }

    .page-tt88apk__about-text {
        font-size: 1.1em;
        color: #555;
        text-align: justify;
        max-width: 800px;
        margin: 0 auto;
    }

    .page-tt88apk__about-image {
        max-width: 100%;
        height: auto;
        border-radius: 10px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }

    /* Danh mục trò chơi */
    .page-tt88apk__game-categories {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        margin-top: 30px;
    }

    .page-tt88apk__game-card {
        background-color: #fff;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        overflow: hidden;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        padding-bottom: 20px;
    }

    .page-tt88apk__game-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-tt88apk__game-card-image {
        width: 100%;
        height: 200px;
        object-fit: cover;
        border-bottom: 1px solid #eee;
    }

    .page-tt88apk__game-card-title {
        font-size: 1.4em;
        color: #0d1a2f;
        margin: 20px 15px 10px;
    }

    .page-tt88apk__game-card-description {
        font-size: 0.95em;
        color: #666;
        padding: 0 15px;
        margin-bottom: 20px;
    }

    /* Hướng dẫn tải và đăng ký */
    .page-tt88apk__guide-steps {
        display: flex;
        flex-direction: column;
        gap: 40px;
    }

    .page-tt88apk__guide-item {
        display: flex;
        align-items: center;
        background-color: #fff;
        border-radius: 10px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        padding: 25px;
    }

    .page-tt88apk__guide-item:nth-child(even) {
        flex-direction: row-reverse;
    }

    .page-tt88apk__guide-number {
        font-size: 2.5em;
        font-weight: bold;
        color: #ff4500;
        min-width: 60px;
        text-align: center;
        margin-right: 25px;
    }

    .page-tt88apk__guide-item:nth-child(even) .page-tt88apk__guide-number {
        margin-right: 0;
        margin-left: 25px;
    }

    .page-tt88apk__guide-content {
        flex: 1;
    }

    .page-tt88apk__guide-title {
        font-size: 1.6em;
        color: #0d1a2f;
        margin-bottom: 10px;
    }

    .page-tt88apk__guide-text {
        font-size: 1em;
        color: #555;
    }

    .page-tt88apk__guide-image {
        max-width: 300px;
        height: auto;
        border-radius: 8px;
        box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
        margin-left: 30px;
    }

    .page-tt88apk__guide-item:nth-child(even) .page-tt88apk__guide-image {
        margin-left: 0;
        margin-right: 30px;
    }

    /* Ưu đãi và khuyến mãi */
    .page-tt88apk__promotions-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 30px;
    }

    .page-tt88apk__promo-card {
        background-color: #e6f7ff; /* Nền xanh nhạt */
        border-left: 5px solid #007bff;
        border-radius: 8px;
        padding: 25px;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
        transition: transform 0.3s ease;
    }

    .page-tt88apk__promo-card:hover {
        transform: translateY(-5px);
    }

    .page-tt88apk__promo-title {
        font-size: 1.5em;
        color: #007bff;
        margin-bottom: 10px;
    }

    .page-tt88apk__promo-description {
        color: #444;
        margin-bottom: 15px;
    }

    /* FAQ Section */
    .page-tt88apk__faq-list {
        max-width: 900px;
        margin: 0 auto;
    }

    .page-tt88apk__faq-item {
        background-color: #fff;
        border: 1px solid #ddd;
        border-radius: 8px;
        margin-bottom: 15px;
        overflow: hidden;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-tt88apk__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 18px 25px;
        background-color: #f9f9f9;
        cursor: pointer;
        font-size: 1.15em;
        color: #0d1a2f;
        font-weight: bold;
        transition: background-color 0.3s ease;
        user-select: none;
    }

    .page-tt88apk__faq-question h3 {
        margin: 0;
        font-size: 1.15em;
        color: #0d1a2f;
        font-weight: bold;
        pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-tt88apk__faq-question:hover {
        background-color: #f0f0f0;
    }

    .page-tt88apk__faq-toggle {
        font-size: 1.8em;
        font-weight: bold;
        color: #ff4500;
        margin-left: 15px;
        pointer-events: none; /* Prevent toggle icon from blocking click event */
        transition: transform 0.3s ease;
    }

    .page-tt88apk__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 25px;
        opacity: 0;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
        color: #555;
    }

    .page-tt88apk__faq-item.active .page-tt88apk__faq-answer {
        max-height: 2000px !important; /* Sufficiently large value */
        padding: 20px 25px !important;
        opacity: 1;
    }

    .page-tt88apk__faq-item.active .page-tt88apk__faq-toggle {
        transform: rotate(45deg); /* Change '+' to 'x' visually */
        color: #0d1a2f;
    }

    /* Floating Login Button */
    .page-tt88apk__floating-login {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 1000;
        background-color: #ffcc00; /* Màu vàng nổi bật */
        color: #0d1a2f;
        padding: 15px 25px;
        border-radius: 50px;
        text-decoration: none;
        font-size: 1.1em;
        font-weight: bold;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
        display: flex;
        align-items: center;
        gap: 10px;
        transition: background-color 0.3s ease, transform 0.2s ease;
        animation: page-tt88apk__pulse 2s infinite;
    }

    .page-tt88apk__floating-login:hover {
        background-color: #e0b800;
        transform: translateY(-3px);
    }

    .page-tt88apk__floating-login-icon {
        width: 24px;
        height: 24px;
        vertical-align: middle;
    }

    @keyframes page-tt88apk__pulse {
        0% { transform: scale(1); }
        50% { transform: scale(1.05); }
        100% { transform: scale(1); }
    }

    /* Responsive Design */
    @media (max-width: 768px) {
        .page-tt88apk__hero-title {
            font-size: 2em;
        }

        .page-tt88apk__hero-subtitle {
            font-size: 1.1em;
        }

        .page-tt88apk__cta-button {
            padding: 12px 25px;
            font-size: 1em;
        }

        .page-tt88apk__section {
            padding: 40px 0;
        }

        .page-tt88apk__section-title {
            font-size: 1.8em;
            margin-bottom: 30px;
        }

        .page-tt88apk__about-text {
            font-size: 1em;
        }

        .page-tt88apk__game-categories {
            grid-template-columns: 1fr;
        }

        .page-tt88apk__guide-item {
            flex-direction: column !important; /* Force column for all items */
            text-align: center;
        }

        .page-tt88apk__guide-number {
            margin: 0 0 15px 0 !important;
        }

        .page-tt88apk__guide-image {
            margin: 20px auto 0 auto !important;
            max-width: 100% !important;
            height: auto !important;
            box-sizing: border-box !important;
            word-wrap: break-word !important;
            overflow-wrap: break-word !important;
        }
        
        /* List item responsive adjustments */
        .page-tt88apk__game-card,
        .page-tt88apk__promo-card {
            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;
        }

        .page-tt88apk__game-categories,
        .page-tt88apk__promotions-grid,
        .page-tt88apk__guide-steps {
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            padding: 0 !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
        }

        .page-tt88apk__faq-question {
            font-size: 1em;
            padding: 15px 20px;
        }
        
        .page-tt88apk__faq-question h3 {
            font-size: 1em;
        }

        .page-tt88apk__faq-toggle {
            font-size: 1.5em;
        }

        .page-tt88apk__faq-answer {
            padding: 0 20px;
        }

        .page-tt88apk__faq-item.active .page-tt88apk__faq-answer {
            padding: 15px 20px !important;
        }

        .page-tt88apk__floating-login {
            bottom: 15px;
            right: 15px;
            padding: 12px 20px;
            font-size: 1em;
        }
    }

    @media (max-width: 480px) {
        .page-tt88apk__hero-title {
            font-size: 1.8em;
        }
        .page-tt88apk__hero-subtitle {
            font-size: 1em;
        }
        .page-tt88apk__section-title {
            font-size: 1.6em;
        }
        .page-tt88apk__guide-title {
            font-size: 1.4em;
        }
        .page-tt88apk__promo-title {
            font-size: 1.3em;
        }
    }