:root {
        --primary-color: #e44d26; /* Cam đỏ */
        --secondary-color: #ff9800; /* Cam sáng */
        --accent-color: #4CAF50; /* Xanh lá */
        --dark-background: #1a1a1a; /* Nền tối */
        --light-background: #ffffff; /* Nền sáng */
        --text-color-light: #ffffff; /* Chữ sáng */
        --text-color-dark: #333333; /* Chữ tối */
        --border-color: #444444; /* Viền */
        --shadow-color: rgba(0, 0, 0, 0.5); /* Bóng */
    }

    .page-66-be {
        font-family: 'Arial', sans-serif;
        color: var(--text-color-light);
        background-color: var(--dark-background);
        line-height: 1.6;
        padding-bottom: 80px; /* Dành chỗ cho footer hoặc nút nổi */
    }

    .page-66-be__container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
        box-sizing: border-box;
    }

    .page-66-be__section {
        padding: 60px 0;
        text-align: center;
    }

    .page-66-be__section--dark {
        background-color: #222222;
    }

    .page-66-be__section-title {
        font-size: 2.8em;
        color: var(--primary-color);
        margin-bottom: 30px;
        text-transform: uppercase;
        font-weight: bold;
    }
    .page-66-be__section-title span {
        color: var(--secondary-color);
    }

    .page-66-be__hero-section {
        background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
        background-size: cover;
        background-position: center;
        padding: 10px 0 80px 0; /* 10px top padding for decorative spacing, not header offset */
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 60vh;
        position: relative;
        overflow: hidden;
    }
    .page-66-be__hero-image {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: -1;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-66-be__hero-content {
        z-index: 1;
        color: var(--text-color-light);
        max-width: 800px;
        text-align: center;
        padding: 20px;
    }

    .page-66-be__hero-title {
        font-size: 3.5em;
        margin-bottom: 20px;
        color: var(--primary-color);
        text-shadow: 2px 2px 4px var(--shadow-color);
        font-weight: bold;
    }

    .page-66-be__hero-description {
        font-size: 1.3em;
        margin-bottom: 40px;
        line-height: 1.5;
        color: #e0e0e0;
    }

    .page-66-be__button {
        display: inline-block;
        background-color: var(--primary-color);
        color: var(--text-color-light);
        padding: 15px 30px;
        border-radius: 50px;
        font-size: 1.1em;
        font-weight: bold;
        text-decoration: none;
        transition: background-color 0.3s ease, transform 0.2s ease;
        border: none;
        cursor: pointer;
    }

    .page-66-be__button:hover {
        background-color: var(--secondary-color);
        transform: translateY(-3px);
    }

    .page-66-be__intro-content {
        font-size: 1.1em;
        max-width: 900px;
        margin: 0 auto 40px auto;
        color: #cccccc;
    }

    .page-66-be__game-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-66-be__game-card {
        background-color: #2a2a2a;
        border-radius: 15px;
        overflow: hidden;
        box-shadow: 0 8px 16px var(--shadow-color);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        color: var(--text-color-light);
        text-align: left;
        display: flex;
        flex-direction: column;
    }

    .page-66-be__game-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.7);
    }

    .page-66-be__game-card-image {
        width: 100%;
        height: 200px;
        object-fit: cover;
        border-bottom: 1px solid var(--border-color);
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-66-be__game-card-content {
        padding: 20px;
        flex-grow: 1;
        display: flex;
        flex-direction: column;
    }

    .page-66-be__game-card-title {
        font-size: 1.5em;
        color: var(--secondary-color);
        margin-bottom: 10px;
        font-weight: bold;
    }

    .page-66-be__game-card-description {
        font-size: 0.95em;
        color: #b0b0b0;
        margin-bottom: 15px;
        flex-grow: 1;
    }

    .page-66-be__promotion-list {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
        list-style: none;
        padding: 0;
    }

    .page-66-be__promotion-item {
        background-color: #2a2a2a;
        border-radius: 15px;
        box-shadow: 0 6px 12px var(--shadow-color);
        padding: 25px;
        text-align: left;
        transition: transform 0.3s ease;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        min-height: 220px; /* Đảm bảo chiều cao tối thiểu */
        box-sizing: border-box;
    }

    .page-66-be__promotion-item:hover {
        transform: translateY(-5px);
    }

    .page-66-be__promotion-title {
        font-size: 1.6em;
        color: var(--primary-color);
        margin-bottom: 10px;
        font-weight: bold;
    }

    .page-66-be__promotion-description {
        font-size: 1em;
        color: #b0b0b0;
        margin-bottom: 15px;
    }

    .page-66-be__promotion-date {
        font-size: 0.9em;
        color: #888888;
        text-align: right;
    }

    .page-66-be__features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-66-be__feature-card {
        background-color: #2a2a2a;
        border-radius: 15px;
        box-shadow: 0 6px 12px var(--shadow-color);
        padding: 30px;
        transition: transform 0.3s ease, background-color 0.3s ease;
        min-height: 250px; /* Đảm bảo chiều cao tối thiểu */
        box-sizing: border-box;
    }

    .page-66-be__feature-card:hover {
        transform: translateY(-5px);
        background-color: #333333;
    }

    .page-66-be__feature-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 20px;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-66-be__feature-title {
        font-size: 1.4em;
        color: var(--secondary-color);
        margin-bottom: 10px;
        font-weight: bold;
    }

    .page-66-be__feature-description {
        font-size: 0.95em;
        color: #b0b0b0;
    }

    .page-66-be__payment-providers {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
        margin-top: 40px;
    }

    .page-66-be__payment-logo,
    .page-66-be__provider-logo {
        height: 60px; /* Điều chỉnh chiều cao cho phù hợp */
        width: auto;
        object-fit: contain;
        transition: transform 0.2s ease;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-66-be__payment-logo:hover,
    .page-66-be__provider-logo:hover {
        transform: scale(1.05);
    }

    .page-66-be__faq-list {
        margin-top: 40px;
        text-align: left;
    }

    .page-66-be__faq-item {
        background-color: #2a2a2a;
        margin-bottom: 15px;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 4px 8px var(--shadow-color);
    }

    .page-66-be__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 25px;
        background-color: #333333;
        cursor: pointer;
        user-select: none;
        transition: background-color 0.3s ease;
    }

    .page-66-be__faq-question:hover {
        background-color: #444444;
    }

    .page-66-be__faq-question h3 {
        margin: 0;
        font-size: 1.2em;
        color: var(--text-color-light);
        pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
        flex-grow: 1;
    }

    .page-66-be__faq-toggle {
        font-size: 1.8em;
        font-weight: bold;
        color: var(--primary-color);
        margin-left: 15px;
        transition: transform 0.3s ease;
        pointer-events: none; /* Ngăn chặn toggle chặn sự kiện click */
    }

    .page-66-be__faq-item.active .page-66-be__faq-toggle {
        transform: rotate(45deg); /* Chuyển '+' thành 'x' hoặc '-' */
    }
    .page-66-be__faq-item.active .page-66-be__faq-toggle::before {
        content: "−"; /* Đặt nội dung là dấu trừ */
        transform: rotate(0deg); /* Đảm bảo dấu trừ không bị xoay */
    }
    .page-66-be__faq-item:not(.active) .page-66-be__faq-toggle::before {
        content: "+";
    }

    .page-66-be__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: #cccccc;
        font-size: 1em;
        line-height: 1.6;
    }

    .page-66-be__faq-item.active .page-66-be__faq-answer {
        max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
        padding: 20px 25px !important;
        opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
        .page-66-be__section {
            padding: 40px 0;
        }

        .page-66-be__section-title {
            font-size: 2.2em;
            margin-bottom: 25px;
        }

        .page-66-be__hero-title {
            font-size: 2.5em;
        }

        .page-66-be__hero-description {
            font-size: 1.1em;
        }

        .page-66-be__button {
            padding: 12px 25px;
            font-size: 1em;
        }

        .page-66-be__game-grid,
        .page-66-be__promotion-list,
        .page-66-be__features-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .page-66-be__game-card-title {
            font-size: 1.3em;
        }

        .page-66-be__promotion-title {
            font-size: 1.4em;
        }

        .page-66-be__feature-title {
            font-size: 1.2em;
        }

        .page-66-be__faq-question {
            padding: 15px 20px;
        }

        .page-66-be__faq-question h3 {
            font-size: 1.1em;
        }

        .page-66-be__faq-toggle {
            font-size: 1.5em;
        }

        .page-66-be__faq-answer {
            padding: 0 20px;
        }

        .page-66-be__faq-item.active .page-66-be__faq-answer {
            padding: 15px 20px !important;
        }

        /* Responsive images */
        .page-66-be__hero-image,
        .page-66-be__game-card-image,
        .page-66-be__feature-icon,
        .page-66-be__payment-logo,
        .page-66-be__provider-logo {
            max-width: 100% !important;
            height: auto !important;
            box-sizing: border-box !important;
        }

        /* List item responsive adjustments */
        .page-66-be__promotion-item,
        .page-66-be__feature-card {
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
            padding: 20px !important; /* Adjust padding for mobile */
            word-wrap: break-word !important;
            overflow-wrap: break-word !important;
            word-break: break-word !important;
        }
        .page-66-be__promotion-list,
        .page-66-be__features-grid {
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            padding: 0 !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
        }
    }

    @media (max-width: 480px) {
        .page-66-be__hero-title {
            font-size: 2em;
        }
        .page-66-be__section-title {
            font-size: 1.8em;
        }
    }